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| <pre><span class="sourceLineNo">001</span>/**<a name="line.1"></a> |
| <span class="sourceLineNo">002</span> * Licensed to the Apache Software Foundation (ASF) under one<a name="line.2"></a> |
| <span class="sourceLineNo">003</span> * or more contributor license agreements. See the NOTICE file<a name="line.3"></a> |
| <span class="sourceLineNo">004</span> * distributed with this work for additional information<a name="line.4"></a> |
| <span class="sourceLineNo">005</span> * regarding copyright ownership. The ASF licenses this file<a name="line.5"></a> |
| <span class="sourceLineNo">006</span> * to you under the Apache License, Version 2.0 (the<a name="line.6"></a> |
| <span class="sourceLineNo">007</span> * "License"); you may not use this file except in compliance<a name="line.7"></a> |
| <span class="sourceLineNo">008</span> * with the License. You may obtain a copy of the License at<a name="line.8"></a> |
| <span class="sourceLineNo">009</span> *<a name="line.9"></a> |
| <span class="sourceLineNo">010</span> * http://www.apache.org/licenses/LICENSE-2.0<a name="line.10"></a> |
| <span class="sourceLineNo">011</span> *<a name="line.11"></a> |
| <span class="sourceLineNo">012</span> * Unless required by applicable law or agreed to in writing, software<a name="line.12"></a> |
| <span class="sourceLineNo">013</span> * distributed under the License is distributed on an "AS IS" BASIS,<a name="line.13"></a> |
| <span class="sourceLineNo">014</span> * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.<a name="line.14"></a> |
| <span class="sourceLineNo">015</span> * See the License for the specific language governing permissions and<a name="line.15"></a> |
| <span class="sourceLineNo">016</span> * limitations under the License.<a name="line.16"></a> |
| <span class="sourceLineNo">017</span> */<a name="line.17"></a> |
| <span class="sourceLineNo">018</span>package org.apache.hadoop.hbase.regionserver;<a name="line.18"></a> |
| <span class="sourceLineNo">019</span><a name="line.19"></a> |
| <span class="sourceLineNo">020</span>import edu.umd.cs.findbugs.annotations.Nullable;<a name="line.20"></a> |
| <span class="sourceLineNo">021</span>import java.io.FileNotFoundException;<a name="line.21"></a> |
| <span class="sourceLineNo">022</span>import java.io.IOException;<a name="line.22"></a> |
| <span class="sourceLineNo">023</span>import java.io.InterruptedIOException;<a name="line.23"></a> |
| <span class="sourceLineNo">024</span>import java.util.ArrayList;<a name="line.24"></a> |
| <span class="sourceLineNo">025</span>import java.util.Collection;<a name="line.25"></a> |
| <span class="sourceLineNo">026</span>import java.util.List;<a name="line.26"></a> |
| <span class="sourceLineNo">027</span>import java.util.Objects;<a name="line.27"></a> |
| <span class="sourceLineNo">028</span>import java.util.Optional;<a name="line.28"></a> |
| <span class="sourceLineNo">029</span>import java.util.UUID;<a name="line.29"></a> |
| <span class="sourceLineNo">030</span>import org.apache.hadoop.conf.Configuration;<a name="line.30"></a> |
| <span class="sourceLineNo">031</span>import org.apache.hadoop.fs.FSDataInputStream;<a name="line.31"></a> |
| <span class="sourceLineNo">032</span>import org.apache.hadoop.fs.FSDataOutputStream;<a name="line.32"></a> |
| <span class="sourceLineNo">033</span>import org.apache.hadoop.fs.FileStatus;<a name="line.33"></a> |
| <span class="sourceLineNo">034</span>import org.apache.hadoop.fs.FileSystem;<a name="line.34"></a> |
| <span class="sourceLineNo">035</span>import org.apache.hadoop.fs.FileUtil;<a name="line.35"></a> |
| <span class="sourceLineNo">036</span>import org.apache.hadoop.fs.LocatedFileStatus;<a name="line.36"></a> |
| <span class="sourceLineNo">037</span>import org.apache.hadoop.fs.Path;<a name="line.37"></a> |
| <span class="sourceLineNo">038</span>import org.apache.hadoop.fs.permission.FsPermission;<a name="line.38"></a> |
| <span class="sourceLineNo">039</span>import org.apache.hadoop.hbase.Cell;<a name="line.39"></a> |
| <span class="sourceLineNo">040</span>import org.apache.hadoop.hbase.HConstants;<a name="line.40"></a> |
| <span class="sourceLineNo">041</span>import org.apache.hadoop.hbase.PrivateCellUtil;<a name="line.41"></a> |
| <span class="sourceLineNo">042</span>import org.apache.hadoop.hbase.backup.HFileArchiver;<a name="line.42"></a> |
| <span class="sourceLineNo">043</span>import org.apache.hadoop.hbase.client.ColumnFamilyDescriptor;<a name="line.43"></a> |
| <span class="sourceLineNo">044</span>import org.apache.hadoop.hbase.client.RegionInfo;<a name="line.44"></a> |
| <span class="sourceLineNo">045</span>import org.apache.hadoop.hbase.client.TableDescriptor;<a name="line.45"></a> |
| <span class="sourceLineNo">046</span>import org.apache.hadoop.hbase.fs.HFileSystem;<a name="line.46"></a> |
| <span class="sourceLineNo">047</span>import org.apache.hadoop.hbase.io.Reference;<a name="line.47"></a> |
| <span class="sourceLineNo">048</span>import org.apache.hadoop.hbase.util.Bytes;<a name="line.48"></a> |
| <span class="sourceLineNo">049</span>import org.apache.hadoop.hbase.util.CommonFSUtils;<a name="line.49"></a> |
| <span class="sourceLineNo">050</span>import org.apache.hadoop.hbase.util.FSUtils;<a name="line.50"></a> |
| <span class="sourceLineNo">051</span>import org.apache.hadoop.hbase.util.Pair;<a name="line.51"></a> |
| <span class="sourceLineNo">052</span>import org.apache.hadoop.hbase.util.ServerRegionReplicaUtil;<a name="line.52"></a> |
| <span class="sourceLineNo">053</span>import org.apache.yetus.audience.InterfaceAudience;<a name="line.53"></a> |
| <span class="sourceLineNo">054</span>import org.slf4j.Logger;<a name="line.54"></a> |
| <span class="sourceLineNo">055</span>import org.slf4j.LoggerFactory;<a name="line.55"></a> |
| <span class="sourceLineNo">056</span><a name="line.56"></a> |
| <span class="sourceLineNo">057</span>import org.apache.hbase.thirdparty.com.google.common.annotations.VisibleForTesting;<a name="line.57"></a> |
| <span class="sourceLineNo">058</span>import org.apache.hbase.thirdparty.com.google.common.collect.Lists;<a name="line.58"></a> |
| <span class="sourceLineNo">059</span><a name="line.59"></a> |
| <span class="sourceLineNo">060</span>/**<a name="line.60"></a> |
| <span class="sourceLineNo">061</span> * View to an on-disk Region.<a name="line.61"></a> |
| <span class="sourceLineNo">062</span> * Provides the set of methods necessary to interact with the on-disk region data.<a name="line.62"></a> |
| <span class="sourceLineNo">063</span> */<a name="line.63"></a> |
| <span class="sourceLineNo">064</span>@InterfaceAudience.Private<a name="line.64"></a> |
| <span class="sourceLineNo">065</span>public class HRegionFileSystem {<a name="line.65"></a> |
| <span class="sourceLineNo">066</span> private static final Logger LOG = LoggerFactory.getLogger(HRegionFileSystem.class);<a name="line.66"></a> |
| <span class="sourceLineNo">067</span><a name="line.67"></a> |
| <span class="sourceLineNo">068</span> /** Name of the region info file that resides just under the region directory. */<a name="line.68"></a> |
| <span class="sourceLineNo">069</span> public final static String REGION_INFO_FILE = ".regioninfo";<a name="line.69"></a> |
| <span class="sourceLineNo">070</span><a name="line.70"></a> |
| <span class="sourceLineNo">071</span> /** Temporary subdirectory of the region directory used for merges. */<a name="line.71"></a> |
| <span class="sourceLineNo">072</span> public static final String REGION_MERGES_DIR = ".merges";<a name="line.72"></a> |
| <span class="sourceLineNo">073</span><a name="line.73"></a> |
| <span class="sourceLineNo">074</span> /** Temporary subdirectory of the region directory used for splits. */<a name="line.74"></a> |
| <span class="sourceLineNo">075</span> public static final String REGION_SPLITS_DIR = ".splits";<a name="line.75"></a> |
| <span class="sourceLineNo">076</span><a name="line.76"></a> |
| <span class="sourceLineNo">077</span> /** Temporary subdirectory of the region directory used for compaction output. */<a name="line.77"></a> |
| <span class="sourceLineNo">078</span> @VisibleForTesting static final String REGION_TEMP_DIR = ".tmp";<a name="line.78"></a> |
| <span class="sourceLineNo">079</span><a name="line.79"></a> |
| <span class="sourceLineNo">080</span> private final RegionInfo regionInfo;<a name="line.80"></a> |
| <span class="sourceLineNo">081</span> //regionInfo for interacting with FS (getting encodedName, etc)<a name="line.81"></a> |
| <span class="sourceLineNo">082</span> final RegionInfo regionInfoForFs;<a name="line.82"></a> |
| <span class="sourceLineNo">083</span> final Configuration conf;<a name="line.83"></a> |
| <span class="sourceLineNo">084</span> private final Path tableDir;<a name="line.84"></a> |
| <span class="sourceLineNo">085</span> final FileSystem fs;<a name="line.85"></a> |
| <span class="sourceLineNo">086</span> private final Path regionDir;<a name="line.86"></a> |
| <span class="sourceLineNo">087</span><a name="line.87"></a> |
| <span class="sourceLineNo">088</span> /**<a name="line.88"></a> |
| <span class="sourceLineNo">089</span> * In order to handle NN connectivity hiccups, one need to retry non-idempotent operation at the<a name="line.89"></a> |
| <span class="sourceLineNo">090</span> * client level.<a name="line.90"></a> |
| <span class="sourceLineNo">091</span> */<a name="line.91"></a> |
| <span class="sourceLineNo">092</span> private final int hdfsClientRetriesNumber;<a name="line.92"></a> |
| <span class="sourceLineNo">093</span> private final int baseSleepBeforeRetries;<a name="line.93"></a> |
| <span class="sourceLineNo">094</span> private static final int DEFAULT_HDFS_CLIENT_RETRIES_NUMBER = 10;<a name="line.94"></a> |
| <span class="sourceLineNo">095</span> private static final int DEFAULT_BASE_SLEEP_BEFORE_RETRIES = 1000;<a name="line.95"></a> |
| <span class="sourceLineNo">096</span><a name="line.96"></a> |
| <span class="sourceLineNo">097</span> /**<a name="line.97"></a> |
| <span class="sourceLineNo">098</span> * Create a view to the on-disk region<a name="line.98"></a> |
| <span class="sourceLineNo">099</span> * @param conf the {@link Configuration} to use<a name="line.99"></a> |
| <span class="sourceLineNo">100</span> * @param fs {@link FileSystem} that contains the region<a name="line.100"></a> |
| <span class="sourceLineNo">101</span> * @param tableDir {@link Path} to where the table is being stored<a name="line.101"></a> |
| <span class="sourceLineNo">102</span> * @param regionInfo {@link RegionInfo} for region<a name="line.102"></a> |
| <span class="sourceLineNo">103</span> */<a name="line.103"></a> |
| <span class="sourceLineNo">104</span> HRegionFileSystem(final Configuration conf, final FileSystem fs, final Path tableDir,<a name="line.104"></a> |
| <span class="sourceLineNo">105</span> final RegionInfo regionInfo) {<a name="line.105"></a> |
| <span class="sourceLineNo">106</span> this.fs = fs;<a name="line.106"></a> |
| <span class="sourceLineNo">107</span> this.conf = conf;<a name="line.107"></a> |
| <span class="sourceLineNo">108</span> this.tableDir = Objects.requireNonNull(tableDir, "tableDir is null");<a name="line.108"></a> |
| <span class="sourceLineNo">109</span> this.regionInfo = Objects.requireNonNull(regionInfo, "regionInfo is null");<a name="line.109"></a> |
| <span class="sourceLineNo">110</span> this.regionInfoForFs = ServerRegionReplicaUtil.getRegionInfoForFs(regionInfo);<a name="line.110"></a> |
| <span class="sourceLineNo">111</span> this.regionDir = FSUtils.getRegionDirFromTableDir(tableDir, regionInfo);<a name="line.111"></a> |
| <span class="sourceLineNo">112</span> this.hdfsClientRetriesNumber = conf.getInt("hdfs.client.retries.number",<a name="line.112"></a> |
| <span class="sourceLineNo">113</span> DEFAULT_HDFS_CLIENT_RETRIES_NUMBER);<a name="line.113"></a> |
| <span class="sourceLineNo">114</span> this.baseSleepBeforeRetries = conf.getInt("hdfs.client.sleep.before.retries",<a name="line.114"></a> |
| <span class="sourceLineNo">115</span> DEFAULT_BASE_SLEEP_BEFORE_RETRIES);<a name="line.115"></a> |
| <span class="sourceLineNo">116</span> }<a name="line.116"></a> |
| <span class="sourceLineNo">117</span><a name="line.117"></a> |
| <span class="sourceLineNo">118</span> /** @return the underlying {@link FileSystem} */<a name="line.118"></a> |
| <span class="sourceLineNo">119</span> public FileSystem getFileSystem() {<a name="line.119"></a> |
| <span class="sourceLineNo">120</span> return this.fs;<a name="line.120"></a> |
| <span class="sourceLineNo">121</span> }<a name="line.121"></a> |
| <span class="sourceLineNo">122</span><a name="line.122"></a> |
| <span class="sourceLineNo">123</span> /** @return the {@link RegionInfo} that describe this on-disk region view */<a name="line.123"></a> |
| <span class="sourceLineNo">124</span> public RegionInfo getRegionInfo() {<a name="line.124"></a> |
| <span class="sourceLineNo">125</span> return this.regionInfo;<a name="line.125"></a> |
| <span class="sourceLineNo">126</span> }<a name="line.126"></a> |
| <span class="sourceLineNo">127</span><a name="line.127"></a> |
| <span class="sourceLineNo">128</span> public RegionInfo getRegionInfoForFS() {<a name="line.128"></a> |
| <span class="sourceLineNo">129</span> return this.regionInfoForFs;<a name="line.129"></a> |
| <span class="sourceLineNo">130</span> }<a name="line.130"></a> |
| <span class="sourceLineNo">131</span><a name="line.131"></a> |
| <span class="sourceLineNo">132</span> /** @return {@link Path} to the region's root directory. */<a name="line.132"></a> |
| <span class="sourceLineNo">133</span> public Path getTableDir() {<a name="line.133"></a> |
| <span class="sourceLineNo">134</span> return this.tableDir;<a name="line.134"></a> |
| <span class="sourceLineNo">135</span> }<a name="line.135"></a> |
| <span class="sourceLineNo">136</span><a name="line.136"></a> |
| <span class="sourceLineNo">137</span> /** @return {@link Path} to the region directory. */<a name="line.137"></a> |
| <span class="sourceLineNo">138</span> public Path getRegionDir() {<a name="line.138"></a> |
| <span class="sourceLineNo">139</span> return regionDir;<a name="line.139"></a> |
| <span class="sourceLineNo">140</span> }<a name="line.140"></a> |
| <span class="sourceLineNo">141</span><a name="line.141"></a> |
| <span class="sourceLineNo">142</span> // ===========================================================================<a name="line.142"></a> |
| <span class="sourceLineNo">143</span> // Temp Helpers<a name="line.143"></a> |
| <span class="sourceLineNo">144</span> // ===========================================================================<a name="line.144"></a> |
| <span class="sourceLineNo">145</span> /** @return {@link Path} to the region's temp directory, used for file creations */<a name="line.145"></a> |
| <span class="sourceLineNo">146</span> Path getTempDir() {<a name="line.146"></a> |
| <span class="sourceLineNo">147</span> return new Path(getRegionDir(), REGION_TEMP_DIR);<a name="line.147"></a> |
| <span class="sourceLineNo">148</span> }<a name="line.148"></a> |
| <span class="sourceLineNo">149</span><a name="line.149"></a> |
| <span class="sourceLineNo">150</span> /**<a name="line.150"></a> |
| <span class="sourceLineNo">151</span> * Clean up any temp detritus that may have been left around from previous operation attempts.<a name="line.151"></a> |
| <span class="sourceLineNo">152</span> */<a name="line.152"></a> |
| <span class="sourceLineNo">153</span> void cleanupTempDir() throws IOException {<a name="line.153"></a> |
| <span class="sourceLineNo">154</span> deleteDir(getTempDir());<a name="line.154"></a> |
| <span class="sourceLineNo">155</span> }<a name="line.155"></a> |
| <span class="sourceLineNo">156</span><a name="line.156"></a> |
| <span class="sourceLineNo">157</span> // ===========================================================================<a name="line.157"></a> |
| <span class="sourceLineNo">158</span> // Store/StoreFile Helpers<a name="line.158"></a> |
| <span class="sourceLineNo">159</span> // ===========================================================================<a name="line.159"></a> |
| <span class="sourceLineNo">160</span> /**<a name="line.160"></a> |
| <span class="sourceLineNo">161</span> * Returns the directory path of the specified family<a name="line.161"></a> |
| <span class="sourceLineNo">162</span> * @param familyName Column Family Name<a name="line.162"></a> |
| <span class="sourceLineNo">163</span> * @return {@link Path} to the directory of the specified family<a name="line.163"></a> |
| <span class="sourceLineNo">164</span> */<a name="line.164"></a> |
| <span class="sourceLineNo">165</span> public Path getStoreDir(final String familyName) {<a name="line.165"></a> |
| <span class="sourceLineNo">166</span> return new Path(this.getRegionDir(), familyName);<a name="line.166"></a> |
| <span class="sourceLineNo">167</span> }<a name="line.167"></a> |
| <span class="sourceLineNo">168</span><a name="line.168"></a> |
| <span class="sourceLineNo">169</span> /**<a name="line.169"></a> |
| <span class="sourceLineNo">170</span> * Create the store directory for the specified family name<a name="line.170"></a> |
| <span class="sourceLineNo">171</span> * @param familyName Column Family Name<a name="line.171"></a> |
| <span class="sourceLineNo">172</span> * @return {@link Path} to the directory of the specified family<a name="line.172"></a> |
| <span class="sourceLineNo">173</span> * @throws IOException if the directory creation fails.<a name="line.173"></a> |
| <span class="sourceLineNo">174</span> */<a name="line.174"></a> |
| <span class="sourceLineNo">175</span> Path createStoreDir(final String familyName) throws IOException {<a name="line.175"></a> |
| <span class="sourceLineNo">176</span> Path storeDir = getStoreDir(familyName);<a name="line.176"></a> |
| <span class="sourceLineNo">177</span> if(!fs.exists(storeDir) && !createDir(storeDir))<a name="line.177"></a> |
| <span class="sourceLineNo">178</span> throw new IOException("Failed creating "+storeDir);<a name="line.178"></a> |
| <span class="sourceLineNo">179</span> return storeDir;<a name="line.179"></a> |
| <span class="sourceLineNo">180</span> }<a name="line.180"></a> |
| <span class="sourceLineNo">181</span><a name="line.181"></a> |
| <span class="sourceLineNo">182</span> /**<a name="line.182"></a> |
| <span class="sourceLineNo">183</span> * Set the directory of CF to the specified storage policy. <br><a name="line.183"></a> |
| <span class="sourceLineNo">184</span> * <i>"LAZY_PERSIST"</i>, <i>"ALL_SSD"</i>, <i>"ONE_SSD"</i>, <i>"HOT"</i>, <i>"WARM"</i>,<a name="line.184"></a> |
| <span class="sourceLineNo">185</span> * <i>"COLD"</i> <br><a name="line.185"></a> |
| <span class="sourceLineNo">186</span> * <br><a name="line.186"></a> |
| <span class="sourceLineNo">187</span> * See {@link org.apache.hadoop.hdfs.protocol.HdfsConstants} for more details.<a name="line.187"></a> |
| <span class="sourceLineNo">188</span> * @param familyName The name of column family.<a name="line.188"></a> |
| <span class="sourceLineNo">189</span> * @param policyName The name of the storage policy: 'HOT', 'COLD', etc.<a name="line.189"></a> |
| <span class="sourceLineNo">190</span> * See see hadoop 2.6+ org.apache.hadoop.hdfs.protocol.HdfsConstants for possible list e.g<a name="line.190"></a> |
| <span class="sourceLineNo">191</span> * 'COLD', 'WARM', 'HOT', 'ONE_SSD', 'ALL_SSD', 'LAZY_PERSIST'.<a name="line.191"></a> |
| <span class="sourceLineNo">192</span> */<a name="line.192"></a> |
| <span class="sourceLineNo">193</span> public void setStoragePolicy(String familyName, String policyName) {<a name="line.193"></a> |
| <span class="sourceLineNo">194</span> CommonFSUtils.setStoragePolicy(this.fs, getStoreDir(familyName), policyName);<a name="line.194"></a> |
| <span class="sourceLineNo">195</span> }<a name="line.195"></a> |
| <span class="sourceLineNo">196</span><a name="line.196"></a> |
| <span class="sourceLineNo">197</span> /**<a name="line.197"></a> |
| <span class="sourceLineNo">198</span> * Get the storage policy of the directory of CF.<a name="line.198"></a> |
| <span class="sourceLineNo">199</span> * @param familyName The name of column family.<a name="line.199"></a> |
| <span class="sourceLineNo">200</span> * @return Storage policy name, or {@code null} if not using {@link HFileSystem} or exception<a name="line.200"></a> |
| <span class="sourceLineNo">201</span> * thrown when trying to get policy<a name="line.201"></a> |
| <span class="sourceLineNo">202</span> */<a name="line.202"></a> |
| <span class="sourceLineNo">203</span> @Nullable<a name="line.203"></a> |
| <span class="sourceLineNo">204</span> public String getStoragePolicyName(String familyName) {<a name="line.204"></a> |
| <span class="sourceLineNo">205</span> if (this.fs instanceof HFileSystem) {<a name="line.205"></a> |
| <span class="sourceLineNo">206</span> Path storeDir = getStoreDir(familyName);<a name="line.206"></a> |
| <span class="sourceLineNo">207</span> return ((HFileSystem) this.fs).getStoragePolicyName(storeDir);<a name="line.207"></a> |
| <span class="sourceLineNo">208</span> }<a name="line.208"></a> |
| <span class="sourceLineNo">209</span><a name="line.209"></a> |
| <span class="sourceLineNo">210</span> return null;<a name="line.210"></a> |
| <span class="sourceLineNo">211</span> }<a name="line.211"></a> |
| <span class="sourceLineNo">212</span><a name="line.212"></a> |
| <span class="sourceLineNo">213</span> /**<a name="line.213"></a> |
| <span class="sourceLineNo">214</span> * Returns the store files available for the family.<a name="line.214"></a> |
| <span class="sourceLineNo">215</span> * This methods performs the filtering based on the valid store files.<a name="line.215"></a> |
| <span class="sourceLineNo">216</span> * @param familyName Column Family Name<a name="line.216"></a> |
| <span class="sourceLineNo">217</span> * @return a set of {@link StoreFileInfo} for the specified family.<a name="line.217"></a> |
| <span class="sourceLineNo">218</span> */<a name="line.218"></a> |
| <span class="sourceLineNo">219</span> public Collection<StoreFileInfo> getStoreFiles(final byte[] familyName) throws IOException {<a name="line.219"></a> |
| <span class="sourceLineNo">220</span> return getStoreFiles(Bytes.toString(familyName));<a name="line.220"></a> |
| <span class="sourceLineNo">221</span> }<a name="line.221"></a> |
| <span class="sourceLineNo">222</span><a name="line.222"></a> |
| <span class="sourceLineNo">223</span> public Collection<StoreFileInfo> getStoreFiles(final String familyName) throws IOException {<a name="line.223"></a> |
| <span class="sourceLineNo">224</span> return getStoreFiles(familyName, true);<a name="line.224"></a> |
| <span class="sourceLineNo">225</span> }<a name="line.225"></a> |
| <span class="sourceLineNo">226</span><a name="line.226"></a> |
| <span class="sourceLineNo">227</span> /**<a name="line.227"></a> |
| <span class="sourceLineNo">228</span> * Returns the store files available for the family.<a name="line.228"></a> |
| <span class="sourceLineNo">229</span> * This methods performs the filtering based on the valid store files.<a name="line.229"></a> |
| <span class="sourceLineNo">230</span> * @param familyName Column Family Name<a name="line.230"></a> |
| <span class="sourceLineNo">231</span> * @return a set of {@link StoreFileInfo} for the specified family.<a name="line.231"></a> |
| <span class="sourceLineNo">232</span> */<a name="line.232"></a> |
| <span class="sourceLineNo">233</span> public Collection<StoreFileInfo> getStoreFiles(final String familyName, final boolean validate)<a name="line.233"></a> |
| <span class="sourceLineNo">234</span> throws IOException {<a name="line.234"></a> |
| <span class="sourceLineNo">235</span> Path familyDir = getStoreDir(familyName);<a name="line.235"></a> |
| <span class="sourceLineNo">236</span> FileStatus[] files = CommonFSUtils.listStatus(this.fs, familyDir);<a name="line.236"></a> |
| <span class="sourceLineNo">237</span> if (files == null) {<a name="line.237"></a> |
| <span class="sourceLineNo">238</span> if (LOG.isTraceEnabled()) {<a name="line.238"></a> |
| <span class="sourceLineNo">239</span> LOG.trace("No StoreFiles for: " + familyDir);<a name="line.239"></a> |
| <span class="sourceLineNo">240</span> }<a name="line.240"></a> |
| <span class="sourceLineNo">241</span> return null;<a name="line.241"></a> |
| <span class="sourceLineNo">242</span> }<a name="line.242"></a> |
| <span class="sourceLineNo">243</span><a name="line.243"></a> |
| <span class="sourceLineNo">244</span> ArrayList<StoreFileInfo> storeFiles = new ArrayList<>(files.length);<a name="line.244"></a> |
| <span class="sourceLineNo">245</span> for (FileStatus status: files) {<a name="line.245"></a> |
| <span class="sourceLineNo">246</span> if (validate && !StoreFileInfo.isValid(status)) {<a name="line.246"></a> |
| <span class="sourceLineNo">247</span> // recovered.hfiles directory is expected inside CF path when hbase.wal.split.to.hfile to<a name="line.247"></a> |
| <span class="sourceLineNo">248</span> // true, refer HBASE-23740<a name="line.248"></a> |
| <span class="sourceLineNo">249</span> if (!HConstants.RECOVERED_HFILES_DIR.equals(status.getPath().getName())) {<a name="line.249"></a> |
| <span class="sourceLineNo">250</span> LOG.warn("Invalid StoreFile: {}", status.getPath());<a name="line.250"></a> |
| <span class="sourceLineNo">251</span> }<a name="line.251"></a> |
| <span class="sourceLineNo">252</span> continue;<a name="line.252"></a> |
| <span class="sourceLineNo">253</span> }<a name="line.253"></a> |
| <span class="sourceLineNo">254</span> StoreFileInfo info = ServerRegionReplicaUtil.getStoreFileInfo(conf, fs, regionInfo,<a name="line.254"></a> |
| <span class="sourceLineNo">255</span> regionInfoForFs, familyName, status.getPath());<a name="line.255"></a> |
| <span class="sourceLineNo">256</span> storeFiles.add(info);<a name="line.256"></a> |
| <span class="sourceLineNo">257</span><a name="line.257"></a> |
| <span class="sourceLineNo">258</span> }<a name="line.258"></a> |
| <span class="sourceLineNo">259</span> return storeFiles;<a name="line.259"></a> |
| <span class="sourceLineNo">260</span> }<a name="line.260"></a> |
| <span class="sourceLineNo">261</span><a name="line.261"></a> |
| <span class="sourceLineNo">262</span> /**<a name="line.262"></a> |
| <span class="sourceLineNo">263</span> * Returns the store files' LocatedFileStatus which available for the family.<a name="line.263"></a> |
| <span class="sourceLineNo">264</span> * This methods performs the filtering based on the valid store files.<a name="line.264"></a> |
| <span class="sourceLineNo">265</span> * @param familyName Column Family Name<a name="line.265"></a> |
| <span class="sourceLineNo">266</span> * @return a list of store files' LocatedFileStatus for the specified family.<a name="line.266"></a> |
| <span class="sourceLineNo">267</span> */<a name="line.267"></a> |
| <span class="sourceLineNo">268</span> public static List<LocatedFileStatus> getStoreFilesLocatedStatus(<a name="line.268"></a> |
| <span class="sourceLineNo">269</span> final HRegionFileSystem regionfs, final String familyName,<a name="line.269"></a> |
| <span class="sourceLineNo">270</span> final boolean validate) throws IOException {<a name="line.270"></a> |
| <span class="sourceLineNo">271</span> Path familyDir = regionfs.getStoreDir(familyName);<a name="line.271"></a> |
| <span class="sourceLineNo">272</span> List<LocatedFileStatus> locatedFileStatuses = CommonFSUtils.listLocatedStatus(<a name="line.272"></a> |
| <span class="sourceLineNo">273</span> regionfs.getFileSystem(), familyDir);<a name="line.273"></a> |
| <span class="sourceLineNo">274</span> if (locatedFileStatuses == null) {<a name="line.274"></a> |
| <span class="sourceLineNo">275</span> if (LOG.isTraceEnabled()) {<a name="line.275"></a> |
| <span class="sourceLineNo">276</span> LOG.trace("No StoreFiles for: " + familyDir);<a name="line.276"></a> |
| <span class="sourceLineNo">277</span> }<a name="line.277"></a> |
| <span class="sourceLineNo">278</span> return null;<a name="line.278"></a> |
| <span class="sourceLineNo">279</span> }<a name="line.279"></a> |
| <span class="sourceLineNo">280</span><a name="line.280"></a> |
| <span class="sourceLineNo">281</span> List<LocatedFileStatus> validStoreFiles = Lists.newArrayList();<a name="line.281"></a> |
| <span class="sourceLineNo">282</span> for (LocatedFileStatus status : locatedFileStatuses) {<a name="line.282"></a> |
| <span class="sourceLineNo">283</span> if (validate && !StoreFileInfo.isValid(status)) {<a name="line.283"></a> |
| <span class="sourceLineNo">284</span> // recovered.hfiles directory is expected inside CF path when hbase.wal.split.to.hfile to<a name="line.284"></a> |
| <span class="sourceLineNo">285</span> // true, refer HBASE-23740<a name="line.285"></a> |
| <span class="sourceLineNo">286</span> if (!HConstants.RECOVERED_HFILES_DIR.equals(status.getPath().getName())) {<a name="line.286"></a> |
| <span class="sourceLineNo">287</span> LOG.warn("Invalid StoreFile: {}", status.getPath());<a name="line.287"></a> |
| <span class="sourceLineNo">288</span> }<a name="line.288"></a> |
| <span class="sourceLineNo">289</span> } else {<a name="line.289"></a> |
| <span class="sourceLineNo">290</span> validStoreFiles.add(status);<a name="line.290"></a> |
| <span class="sourceLineNo">291</span> }<a name="line.291"></a> |
| <span class="sourceLineNo">292</span> }<a name="line.292"></a> |
| <span class="sourceLineNo">293</span> return validStoreFiles;<a name="line.293"></a> |
| <span class="sourceLineNo">294</span> }<a name="line.294"></a> |
| <span class="sourceLineNo">295</span><a name="line.295"></a> |
| <span class="sourceLineNo">296</span> /**<a name="line.296"></a> |
| <span class="sourceLineNo">297</span> * Return Qualified Path of the specified family/file<a name="line.297"></a> |
| <span class="sourceLineNo">298</span> *<a name="line.298"></a> |
| <span class="sourceLineNo">299</span> * @param familyName Column Family Name<a name="line.299"></a> |
| <span class="sourceLineNo">300</span> * @param fileName File Name<a name="line.300"></a> |
| <span class="sourceLineNo">301</span> * @return The qualified Path for the specified family/file<a name="line.301"></a> |
| <span class="sourceLineNo">302</span> */<a name="line.302"></a> |
| <span class="sourceLineNo">303</span> Path getStoreFilePath(final String familyName, final String fileName) {<a name="line.303"></a> |
| <span class="sourceLineNo">304</span> Path familyDir = getStoreDir(familyName);<a name="line.304"></a> |
| <span class="sourceLineNo">305</span> return new Path(familyDir, fileName).makeQualified(fs.getUri(), fs.getWorkingDirectory());<a name="line.305"></a> |
| <span class="sourceLineNo">306</span> }<a name="line.306"></a> |
| <span class="sourceLineNo">307</span><a name="line.307"></a> |
| <span class="sourceLineNo">308</span> /**<a name="line.308"></a> |
| <span class="sourceLineNo">309</span> * Return the store file information of the specified family/file.<a name="line.309"></a> |
| <span class="sourceLineNo">310</span> *<a name="line.310"></a> |
| <span class="sourceLineNo">311</span> * @param familyName Column Family Name<a name="line.311"></a> |
| <span class="sourceLineNo">312</span> * @param fileName File Name<a name="line.312"></a> |
| <span class="sourceLineNo">313</span> * @return The {@link StoreFileInfo} for the specified family/file<a name="line.313"></a> |
| <span class="sourceLineNo">314</span> */<a name="line.314"></a> |
| <span class="sourceLineNo">315</span> StoreFileInfo getStoreFileInfo(final String familyName, final String fileName)<a name="line.315"></a> |
| <span class="sourceLineNo">316</span> throws IOException {<a name="line.316"></a> |
| <span class="sourceLineNo">317</span> Path familyDir = getStoreDir(familyName);<a name="line.317"></a> |
| <span class="sourceLineNo">318</span> return ServerRegionReplicaUtil.getStoreFileInfo(conf, fs, regionInfo,<a name="line.318"></a> |
| <span class="sourceLineNo">319</span> regionInfoForFs, familyName, new Path(familyDir, fileName));<a name="line.319"></a> |
| <span class="sourceLineNo">320</span> }<a name="line.320"></a> |
| <span class="sourceLineNo">321</span><a name="line.321"></a> |
| <span class="sourceLineNo">322</span> /**<a name="line.322"></a> |
| <span class="sourceLineNo">323</span> * Returns true if the specified family has reference files<a name="line.323"></a> |
| <span class="sourceLineNo">324</span> * @param familyName Column Family Name<a name="line.324"></a> |
| <span class="sourceLineNo">325</span> * @return true if family contains reference files<a name="line.325"></a> |
| <span class="sourceLineNo">326</span> * @throws IOException<a name="line.326"></a> |
| <span class="sourceLineNo">327</span> */<a name="line.327"></a> |
| <span class="sourceLineNo">328</span> public boolean hasReferences(final String familyName) throws IOException {<a name="line.328"></a> |
| <span class="sourceLineNo">329</span> Path storeDir = getStoreDir(familyName);<a name="line.329"></a> |
| <span class="sourceLineNo">330</span> FileStatus[] files = CommonFSUtils.listStatus(fs, storeDir);<a name="line.330"></a> |
| <span class="sourceLineNo">331</span> if (files != null) {<a name="line.331"></a> |
| <span class="sourceLineNo">332</span> for(FileStatus stat: files) {<a name="line.332"></a> |
| <span class="sourceLineNo">333</span> if(stat.isDirectory()) {<a name="line.333"></a> |
| <span class="sourceLineNo">334</span> continue;<a name="line.334"></a> |
| <span class="sourceLineNo">335</span> }<a name="line.335"></a> |
| <span class="sourceLineNo">336</span> if (StoreFileInfo.isReference(stat.getPath())) {<a name="line.336"></a> |
| <span class="sourceLineNo">337</span> LOG.trace("Reference {}", stat.getPath());<a name="line.337"></a> |
| <span class="sourceLineNo">338</span> return true;<a name="line.338"></a> |
| <span class="sourceLineNo">339</span> }<a name="line.339"></a> |
| <span class="sourceLineNo">340</span> }<a name="line.340"></a> |
| <span class="sourceLineNo">341</span> }<a name="line.341"></a> |
| <span class="sourceLineNo">342</span> return false;<a name="line.342"></a> |
| <span class="sourceLineNo">343</span> }<a name="line.343"></a> |
| <span class="sourceLineNo">344</span><a name="line.344"></a> |
| <span class="sourceLineNo">345</span> /**<a name="line.345"></a> |
| <span class="sourceLineNo">346</span> * Check whether region has Reference file<a name="line.346"></a> |
| <span class="sourceLineNo">347</span> * @param htd table desciptor of the region<a name="line.347"></a> |
| <span class="sourceLineNo">348</span> * @return true if region has reference file<a name="line.348"></a> |
| <span class="sourceLineNo">349</span> * @throws IOException<a name="line.349"></a> |
| <span class="sourceLineNo">350</span> */<a name="line.350"></a> |
| <span class="sourceLineNo">351</span> public boolean hasReferences(final TableDescriptor htd) throws IOException {<a name="line.351"></a> |
| <span class="sourceLineNo">352</span> for (ColumnFamilyDescriptor family : htd.getColumnFamilies()) {<a name="line.352"></a> |
| <span class="sourceLineNo">353</span> if (hasReferences(family.getNameAsString())) {<a name="line.353"></a> |
| <span class="sourceLineNo">354</span> return true;<a name="line.354"></a> |
| <span class="sourceLineNo">355</span> }<a name="line.355"></a> |
| <span class="sourceLineNo">356</span> }<a name="line.356"></a> |
| <span class="sourceLineNo">357</span> return false;<a name="line.357"></a> |
| <span class="sourceLineNo">358</span> }<a name="line.358"></a> |
| <span class="sourceLineNo">359</span><a name="line.359"></a> |
| <span class="sourceLineNo">360</span> /**<a name="line.360"></a> |
| <span class="sourceLineNo">361</span> * @return the set of families present on disk<a name="line.361"></a> |
| <span class="sourceLineNo">362</span> * @throws IOException<a name="line.362"></a> |
| <span class="sourceLineNo">363</span> */<a name="line.363"></a> |
| <span class="sourceLineNo">364</span> public Collection<String> getFamilies() throws IOException {<a name="line.364"></a> |
| <span class="sourceLineNo">365</span> FileStatus[] fds =<a name="line.365"></a> |
| <span class="sourceLineNo">366</span> CommonFSUtils.listStatus(fs, getRegionDir(), new FSUtils.FamilyDirFilter(fs));<a name="line.366"></a> |
| <span class="sourceLineNo">367</span> if (fds == null) return null;<a name="line.367"></a> |
| <span class="sourceLineNo">368</span><a name="line.368"></a> |
| <span class="sourceLineNo">369</span> ArrayList<String> families = new ArrayList<>(fds.length);<a name="line.369"></a> |
| <span class="sourceLineNo">370</span> for (FileStatus status : fds) {<a name="line.370"></a> |
| <span class="sourceLineNo">371</span> families.add(status.getPath().getName());<a name="line.371"></a> |
| <span class="sourceLineNo">372</span> }<a name="line.372"></a> |
| <span class="sourceLineNo">373</span><a name="line.373"></a> |
| <span class="sourceLineNo">374</span> return families;<a name="line.374"></a> |
| <span class="sourceLineNo">375</span> }<a name="line.375"></a> |
| <span class="sourceLineNo">376</span><a name="line.376"></a> |
| <span class="sourceLineNo">377</span> /**<a name="line.377"></a> |
| <span class="sourceLineNo">378</span> * Remove the region family from disk, archiving the store files.<a name="line.378"></a> |
| <span class="sourceLineNo">379</span> * @param familyName Column Family Name<a name="line.379"></a> |
| <span class="sourceLineNo">380</span> * @throws IOException if an error occours during the archiving<a name="line.380"></a> |
| <span class="sourceLineNo">381</span> */<a name="line.381"></a> |
| <span class="sourceLineNo">382</span> public void deleteFamily(final String familyName) throws IOException {<a name="line.382"></a> |
| <span class="sourceLineNo">383</span> // archive family store files<a name="line.383"></a> |
| <span class="sourceLineNo">384</span> HFileArchiver.archiveFamily(fs, conf, regionInfoForFs, tableDir, Bytes.toBytes(familyName));<a name="line.384"></a> |
| <span class="sourceLineNo">385</span><a name="line.385"></a> |
| <span class="sourceLineNo">386</span> // delete the family folder<a name="line.386"></a> |
| <span class="sourceLineNo">387</span> Path familyDir = getStoreDir(familyName);<a name="line.387"></a> |
| <span class="sourceLineNo">388</span> if(fs.exists(familyDir) && !deleteDir(familyDir))<a name="line.388"></a> |
| <span class="sourceLineNo">389</span> throw new IOException("Could not delete family " + familyName<a name="line.389"></a> |
| <span class="sourceLineNo">390</span> + " from FileSystem for region " + regionInfoForFs.getRegionNameAsString() + "("<a name="line.390"></a> |
| <span class="sourceLineNo">391</span> + regionInfoForFs.getEncodedName() + ")");<a name="line.391"></a> |
| <span class="sourceLineNo">392</span> }<a name="line.392"></a> |
| <span class="sourceLineNo">393</span><a name="line.393"></a> |
| <span class="sourceLineNo">394</span> /**<a name="line.394"></a> |
| <span class="sourceLineNo">395</span> * Generate a unique file name, used by createTempName() and commitStoreFile()<a name="line.395"></a> |
| <span class="sourceLineNo">396</span> * @param suffix extra information to append to the generated name<a name="line.396"></a> |
| <span class="sourceLineNo">397</span> * @return Unique file name<a name="line.397"></a> |
| <span class="sourceLineNo">398</span> */<a name="line.398"></a> |
| <span class="sourceLineNo">399</span> private static String generateUniqueName(final String suffix) {<a name="line.399"></a> |
| <span class="sourceLineNo">400</span> String name = UUID.randomUUID().toString().replaceAll("-", "");<a name="line.400"></a> |
| <span class="sourceLineNo">401</span> if (suffix != null) name += suffix;<a name="line.401"></a> |
| <span class="sourceLineNo">402</span> return name;<a name="line.402"></a> |
| <span class="sourceLineNo">403</span> }<a name="line.403"></a> |
| <span class="sourceLineNo">404</span><a name="line.404"></a> |
| <span class="sourceLineNo">405</span> /**<a name="line.405"></a> |
| <span class="sourceLineNo">406</span> * Generate a unique temporary Path. Used in conjuction with commitStoreFile()<a name="line.406"></a> |
| <span class="sourceLineNo">407</span> * to get a safer file creation.<a name="line.407"></a> |
| <span class="sourceLineNo">408</span> * <code><a name="line.408"></a> |
| <span class="sourceLineNo">409</span> * Path file = fs.createTempName();<a name="line.409"></a> |
| <span class="sourceLineNo">410</span> * ...StoreFile.Writer(file)...<a name="line.410"></a> |
| <span class="sourceLineNo">411</span> * fs.commitStoreFile("family", file);<a name="line.411"></a> |
| <span class="sourceLineNo">412</span> * </code><a name="line.412"></a> |
| <span class="sourceLineNo">413</span> *<a name="line.413"></a> |
| <span class="sourceLineNo">414</span> * @return Unique {@link Path} of the temporary file<a name="line.414"></a> |
| <span class="sourceLineNo">415</span> */<a name="line.415"></a> |
| <span class="sourceLineNo">416</span> public Path createTempName() {<a name="line.416"></a> |
| <span class="sourceLineNo">417</span> return createTempName(null);<a name="line.417"></a> |
| <span class="sourceLineNo">418</span> }<a name="line.418"></a> |
| <span class="sourceLineNo">419</span><a name="line.419"></a> |
| <span class="sourceLineNo">420</span> /**<a name="line.420"></a> |
| <span class="sourceLineNo">421</span> * Generate a unique temporary Path. Used in conjuction with commitStoreFile()<a name="line.421"></a> |
| <span class="sourceLineNo">422</span> * to get a safer file creation.<a name="line.422"></a> |
| <span class="sourceLineNo">423</span> * <code><a name="line.423"></a> |
| <span class="sourceLineNo">424</span> * Path file = fs.createTempName();<a name="line.424"></a> |
| <span class="sourceLineNo">425</span> * ...StoreFile.Writer(file)...<a name="line.425"></a> |
| <span class="sourceLineNo">426</span> * fs.commitStoreFile("family", file);<a name="line.426"></a> |
| <span class="sourceLineNo">427</span> * </code><a name="line.427"></a> |
| <span class="sourceLineNo">428</span> *<a name="line.428"></a> |
| <span class="sourceLineNo">429</span> * @param suffix extra information to append to the generated name<a name="line.429"></a> |
| <span class="sourceLineNo">430</span> * @return Unique {@link Path} of the temporary file<a name="line.430"></a> |
| <span class="sourceLineNo">431</span> */<a name="line.431"></a> |
| <span class="sourceLineNo">432</span> public Path createTempName(final String suffix) {<a name="line.432"></a> |
| <span class="sourceLineNo">433</span> return new Path(getTempDir(), generateUniqueName(suffix));<a name="line.433"></a> |
| <span class="sourceLineNo">434</span> }<a name="line.434"></a> |
| <span class="sourceLineNo">435</span><a name="line.435"></a> |
| <span class="sourceLineNo">436</span> /**<a name="line.436"></a> |
| <span class="sourceLineNo">437</span> * Move the file from a build/temp location to the main family store directory.<a name="line.437"></a> |
| <span class="sourceLineNo">438</span> * @param familyName Family that will gain the file<a name="line.438"></a> |
| <span class="sourceLineNo">439</span> * @param buildPath {@link Path} to the file to commit.<a name="line.439"></a> |
| <span class="sourceLineNo">440</span> * @return The new {@link Path} of the committed file<a name="line.440"></a> |
| <span class="sourceLineNo">441</span> * @throws IOException<a name="line.441"></a> |
| <span class="sourceLineNo">442</span> */<a name="line.442"></a> |
| <span class="sourceLineNo">443</span> public Path commitStoreFile(final String familyName, final Path buildPath) throws IOException {<a name="line.443"></a> |
| <span class="sourceLineNo">444</span> Path dstPath = preCommitStoreFile(familyName, buildPath, -1, false);<a name="line.444"></a> |
| <span class="sourceLineNo">445</span> return commitStoreFile(buildPath, dstPath);<a name="line.445"></a> |
| <span class="sourceLineNo">446</span> }<a name="line.446"></a> |
| <span class="sourceLineNo">447</span><a name="line.447"></a> |
| <span class="sourceLineNo">448</span> /**<a name="line.448"></a> |
| <span class="sourceLineNo">449</span> * Generate the filename in the main family store directory for moving the file from a build/temp<a name="line.449"></a> |
| <span class="sourceLineNo">450</span> * location.<a name="line.450"></a> |
| <span class="sourceLineNo">451</span> * @param familyName Family that will gain the file<a name="line.451"></a> |
| <span class="sourceLineNo">452</span> * @param buildPath {@link Path} to the file to commit.<a name="line.452"></a> |
| <span class="sourceLineNo">453</span> * @param seqNum Sequence Number to append to the file name (less then 0 if no sequence number)<a name="line.453"></a> |
| <span class="sourceLineNo">454</span> * @param generateNewName False if you want to keep the buildPath name<a name="line.454"></a> |
| <span class="sourceLineNo">455</span> * @return The new {@link Path} of the to be committed file<a name="line.455"></a> |
| <span class="sourceLineNo">456</span> * @throws IOException<a name="line.456"></a> |
| <span class="sourceLineNo">457</span> */<a name="line.457"></a> |
| <span class="sourceLineNo">458</span> private Path preCommitStoreFile(final String familyName, final Path buildPath,<a name="line.458"></a> |
| <span class="sourceLineNo">459</span> final long seqNum, final boolean generateNewName) throws IOException {<a name="line.459"></a> |
| <span class="sourceLineNo">460</span> Path storeDir = getStoreDir(familyName);<a name="line.460"></a> |
| <span class="sourceLineNo">461</span> if(!fs.exists(storeDir) && !createDir(storeDir))<a name="line.461"></a> |
| <span class="sourceLineNo">462</span> throw new IOException("Failed creating " + storeDir);<a name="line.462"></a> |
| <span class="sourceLineNo">463</span><a name="line.463"></a> |
| <span class="sourceLineNo">464</span> String name = buildPath.getName();<a name="line.464"></a> |
| <span class="sourceLineNo">465</span> if (generateNewName) {<a name="line.465"></a> |
| <span class="sourceLineNo">466</span> name = generateUniqueName((seqNum < 0) ? null : "_SeqId_" + seqNum + "_");<a name="line.466"></a> |
| <span class="sourceLineNo">467</span> }<a name="line.467"></a> |
| <span class="sourceLineNo">468</span> Path dstPath = new Path(storeDir, name);<a name="line.468"></a> |
| <span class="sourceLineNo">469</span> if (!fs.exists(buildPath)) {<a name="line.469"></a> |
| <span class="sourceLineNo">470</span> throw new FileNotFoundException(buildPath.toString());<a name="line.470"></a> |
| <span class="sourceLineNo">471</span> }<a name="line.471"></a> |
| <span class="sourceLineNo">472</span> if (LOG.isDebugEnabled()) {<a name="line.472"></a> |
| <span class="sourceLineNo">473</span> LOG.debug("Committing " + buildPath + " as " + dstPath);<a name="line.473"></a> |
| <span class="sourceLineNo">474</span> }<a name="line.474"></a> |
| <span class="sourceLineNo">475</span> return dstPath;<a name="line.475"></a> |
| <span class="sourceLineNo">476</span> }<a name="line.476"></a> |
| <span class="sourceLineNo">477</span><a name="line.477"></a> |
| <span class="sourceLineNo">478</span> /*<a name="line.478"></a> |
| <span class="sourceLineNo">479</span> * Moves file from staging dir to region dir<a name="line.479"></a> |
| <span class="sourceLineNo">480</span> * @param buildPath {@link Path} to the file to commit.<a name="line.480"></a> |
| <span class="sourceLineNo">481</span> * @param dstPath {@link Path} to the file under region dir<a name="line.481"></a> |
| <span class="sourceLineNo">482</span> * @return The {@link Path} of the committed file<a name="line.482"></a> |
| <span class="sourceLineNo">483</span> * @throws IOException<a name="line.483"></a> |
| <span class="sourceLineNo">484</span> */<a name="line.484"></a> |
| <span class="sourceLineNo">485</span> Path commitStoreFile(final Path buildPath, Path dstPath) throws IOException {<a name="line.485"></a> |
| <span class="sourceLineNo">486</span> // buildPath exists, therefore not doing an exists() check.<a name="line.486"></a> |
| <span class="sourceLineNo">487</span> if (!rename(buildPath, dstPath)) {<a name="line.487"></a> |
| <span class="sourceLineNo">488</span> throw new IOException("Failed rename of " + buildPath + " to " + dstPath);<a name="line.488"></a> |
| <span class="sourceLineNo">489</span> }<a name="line.489"></a> |
| <span class="sourceLineNo">490</span> return dstPath;<a name="line.490"></a> |
| <span class="sourceLineNo">491</span> }<a name="line.491"></a> |
| <span class="sourceLineNo">492</span><a name="line.492"></a> |
| <span class="sourceLineNo">493</span> /**<a name="line.493"></a> |
| <span class="sourceLineNo">494</span> * Archives the specified store file from the specified family.<a name="line.494"></a> |
| <span class="sourceLineNo">495</span> * @param familyName Family that contains the store files<a name="line.495"></a> |
| <span class="sourceLineNo">496</span> * @param filePath {@link Path} to the store file to remove<a name="line.496"></a> |
| <span class="sourceLineNo">497</span> * @throws IOException if the archiving fails<a name="line.497"></a> |
| <span class="sourceLineNo">498</span> */<a name="line.498"></a> |
| <span class="sourceLineNo">499</span> public void removeStoreFile(final String familyName, final Path filePath)<a name="line.499"></a> |
| <span class="sourceLineNo">500</span> throws IOException {<a name="line.500"></a> |
| <span class="sourceLineNo">501</span> HFileArchiver.archiveStoreFile(this.conf, this.fs, this.regionInfoForFs,<a name="line.501"></a> |
| <span class="sourceLineNo">502</span> this.tableDir, Bytes.toBytes(familyName), filePath);<a name="line.502"></a> |
| <span class="sourceLineNo">503</span> }<a name="line.503"></a> |
| <span class="sourceLineNo">504</span><a name="line.504"></a> |
| <span class="sourceLineNo">505</span> /**<a name="line.505"></a> |
| <span class="sourceLineNo">506</span> * Closes and archives the specified store files from the specified family.<a name="line.506"></a> |
| <span class="sourceLineNo">507</span> * @param familyName Family that contains the store files<a name="line.507"></a> |
| <span class="sourceLineNo">508</span> * @param storeFiles set of store files to remove<a name="line.508"></a> |
| <span class="sourceLineNo">509</span> * @throws IOException if the archiving fails<a name="line.509"></a> |
| <span class="sourceLineNo">510</span> */<a name="line.510"></a> |
| <span class="sourceLineNo">511</span> public void removeStoreFiles(String familyName, Collection<HStoreFile> storeFiles)<a name="line.511"></a> |
| <span class="sourceLineNo">512</span> throws IOException {<a name="line.512"></a> |
| <span class="sourceLineNo">513</span> HFileArchiver.archiveStoreFiles(this.conf, this.fs, this.regionInfoForFs,<a name="line.513"></a> |
| <span class="sourceLineNo">514</span> this.tableDir, Bytes.toBytes(familyName), storeFiles);<a name="line.514"></a> |
| <span class="sourceLineNo">515</span> }<a name="line.515"></a> |
| <span class="sourceLineNo">516</span><a name="line.516"></a> |
| <span class="sourceLineNo">517</span> /**<a name="line.517"></a> |
| <span class="sourceLineNo">518</span> * Bulk load: Add a specified store file to the specified family.<a name="line.518"></a> |
| <span class="sourceLineNo">519</span> * If the source file is on the same different file-system is moved from the<a name="line.519"></a> |
| <span class="sourceLineNo">520</span> * source location to the destination location, otherwise is copied over.<a name="line.520"></a> |
| <span class="sourceLineNo">521</span> *<a name="line.521"></a> |
| <span class="sourceLineNo">522</span> * @param familyName Family that will gain the file<a name="line.522"></a> |
| <span class="sourceLineNo">523</span> * @param srcPath {@link Path} to the file to import<a name="line.523"></a> |
| <span class="sourceLineNo">524</span> * @param seqNum Bulk Load sequence number<a name="line.524"></a> |
| <span class="sourceLineNo">525</span> * @return The destination {@link Path} of the bulk loaded file<a name="line.525"></a> |
| <span class="sourceLineNo">526</span> * @throws IOException<a name="line.526"></a> |
| <span class="sourceLineNo">527</span> */<a name="line.527"></a> |
| <span class="sourceLineNo">528</span> Pair<Path, Path> bulkLoadStoreFile(final String familyName, Path srcPath, long seqNum)<a name="line.528"></a> |
| <span class="sourceLineNo">529</span> throws IOException {<a name="line.529"></a> |
| <span class="sourceLineNo">530</span> // Copy the file if it's on another filesystem<a name="line.530"></a> |
| <span class="sourceLineNo">531</span> FileSystem srcFs = srcPath.getFileSystem(conf);<a name="line.531"></a> |
| <span class="sourceLineNo">532</span> srcPath = srcFs.resolvePath(srcPath);<a name="line.532"></a> |
| <span class="sourceLineNo">533</span> FileSystem realSrcFs = srcPath.getFileSystem(conf);<a name="line.533"></a> |
| <span class="sourceLineNo">534</span> FileSystem desFs = fs instanceof HFileSystem ? ((HFileSystem)fs).getBackingFs() : fs;<a name="line.534"></a> |
| <span class="sourceLineNo">535</span><a name="line.535"></a> |
| <span class="sourceLineNo">536</span> // We can't compare FileSystem instances as equals() includes UGI instance<a name="line.536"></a> |
| <span class="sourceLineNo">537</span> // as part of the comparison and won't work when doing SecureBulkLoad<a name="line.537"></a> |
| <span class="sourceLineNo">538</span> // TODO deal with viewFS<a name="line.538"></a> |
| <span class="sourceLineNo">539</span> if (!FSUtils.isSameHdfs(conf, realSrcFs, desFs)) {<a name="line.539"></a> |
| <span class="sourceLineNo">540</span> LOG.info("Bulk-load file " + srcPath + " is on different filesystem than " +<a name="line.540"></a> |
| <span class="sourceLineNo">541</span> "the destination store. Copying file over to destination filesystem.");<a name="line.541"></a> |
| <span class="sourceLineNo">542</span> Path tmpPath = createTempName();<a name="line.542"></a> |
| <span class="sourceLineNo">543</span> FileUtil.copy(realSrcFs, srcPath, fs, tmpPath, false, conf);<a name="line.543"></a> |
| <span class="sourceLineNo">544</span> LOG.info("Copied " + srcPath + " to temporary path on destination filesystem: " + tmpPath);<a name="line.544"></a> |
| <span class="sourceLineNo">545</span> srcPath = tmpPath;<a name="line.545"></a> |
| <span class="sourceLineNo">546</span> }<a name="line.546"></a> |
| <span class="sourceLineNo">547</span><a name="line.547"></a> |
| <span class="sourceLineNo">548</span> return new Pair<>(srcPath, preCommitStoreFile(familyName, srcPath, seqNum, true));<a name="line.548"></a> |
| <span class="sourceLineNo">549</span> }<a name="line.549"></a> |
| <span class="sourceLineNo">550</span><a name="line.550"></a> |
| <span class="sourceLineNo">551</span> // ===========================================================================<a name="line.551"></a> |
| <span class="sourceLineNo">552</span> // Splits Helpers<a name="line.552"></a> |
| <span class="sourceLineNo">553</span> // ===========================================================================<a name="line.553"></a> |
| <span class="sourceLineNo">554</span> /** @return {@link Path} to the temp directory used during split operations */<a name="line.554"></a> |
| <span class="sourceLineNo">555</span> Path getSplitsDir() {<a name="line.555"></a> |
| <span class="sourceLineNo">556</span> return new Path(getRegionDir(), REGION_SPLITS_DIR);<a name="line.556"></a> |
| <span class="sourceLineNo">557</span> }<a name="line.557"></a> |
| <span class="sourceLineNo">558</span><a name="line.558"></a> |
| <span class="sourceLineNo">559</span> public Path getSplitsDir(final RegionInfo hri) {<a name="line.559"></a> |
| <span class="sourceLineNo">560</span> return new Path(getSplitsDir(), hri.getEncodedName());<a name="line.560"></a> |
| <span class="sourceLineNo">561</span> }<a name="line.561"></a> |
| <span class="sourceLineNo">562</span><a name="line.562"></a> |
| <span class="sourceLineNo">563</span> /**<a name="line.563"></a> |
| <span class="sourceLineNo">564</span> * Clean up any split detritus that may have been left around from previous split attempts.<a name="line.564"></a> |
| <span class="sourceLineNo">565</span> */<a name="line.565"></a> |
| <span class="sourceLineNo">566</span> void cleanupSplitsDir() throws IOException {<a name="line.566"></a> |
| <span class="sourceLineNo">567</span> deleteDir(getSplitsDir());<a name="line.567"></a> |
| <span class="sourceLineNo">568</span> }<a name="line.568"></a> |
| <span class="sourceLineNo">569</span><a name="line.569"></a> |
| <span class="sourceLineNo">570</span> /**<a name="line.570"></a> |
| <span class="sourceLineNo">571</span> * Clean up any split detritus that may have been left around from previous<a name="line.571"></a> |
| <span class="sourceLineNo">572</span> * split attempts.<a name="line.572"></a> |
| <span class="sourceLineNo">573</span> * Call this method on initial region deploy.<a name="line.573"></a> |
| <span class="sourceLineNo">574</span> * @throws IOException<a name="line.574"></a> |
| <span class="sourceLineNo">575</span> */<a name="line.575"></a> |
| <span class="sourceLineNo">576</span> void cleanupAnySplitDetritus() throws IOException {<a name="line.576"></a> |
| <span class="sourceLineNo">577</span> Path splitdir = this.getSplitsDir();<a name="line.577"></a> |
| <span class="sourceLineNo">578</span> if (!fs.exists(splitdir)) return;<a name="line.578"></a> |
| <span class="sourceLineNo">579</span> // Look at the splitdir. It could have the encoded names of the daughter<a name="line.579"></a> |
| <span class="sourceLineNo">580</span> // regions we tried to make. See if the daughter regions actually got made<a name="line.580"></a> |
| <span class="sourceLineNo">581</span> // out under the tabledir. If here under splitdir still, then the split did<a name="line.581"></a> |
| <span class="sourceLineNo">582</span> // not complete. Try and do cleanup. This code WILL NOT catch the case<a name="line.582"></a> |
| <span class="sourceLineNo">583</span> // where we successfully created daughter a but regionserver crashed during<a name="line.583"></a> |
| <span class="sourceLineNo">584</span> // the creation of region b. In this case, there'll be an orphan daughter<a name="line.584"></a> |
| <span class="sourceLineNo">585</span> // dir in the filesystem. TOOD: Fix.<a name="line.585"></a> |
| <span class="sourceLineNo">586</span> FileStatus[] daughters = CommonFSUtils.listStatus(fs, splitdir, new FSUtils.DirFilter(fs));<a name="line.586"></a> |
| <span class="sourceLineNo">587</span> if (daughters != null) {<a name="line.587"></a> |
| <span class="sourceLineNo">588</span> for (FileStatus daughter: daughters) {<a name="line.588"></a> |
| <span class="sourceLineNo">589</span> Path daughterDir = new Path(getTableDir(), daughter.getPath().getName());<a name="line.589"></a> |
| <span class="sourceLineNo">590</span> if (fs.exists(daughterDir) && !deleteDir(daughterDir)) {<a name="line.590"></a> |
| <span class="sourceLineNo">591</span> throw new IOException("Failed delete of " + daughterDir);<a name="line.591"></a> |
| <span class="sourceLineNo">592</span> }<a name="line.592"></a> |
| <span class="sourceLineNo">593</span> }<a name="line.593"></a> |
| <span class="sourceLineNo">594</span> }<a name="line.594"></a> |
| <span class="sourceLineNo">595</span> cleanupSplitsDir();<a name="line.595"></a> |
| <span class="sourceLineNo">596</span> LOG.info("Cleaned up old failed split transaction detritus: " + splitdir);<a name="line.596"></a> |
| <span class="sourceLineNo">597</span> }<a name="line.597"></a> |
| <span class="sourceLineNo">598</span><a name="line.598"></a> |
| <span class="sourceLineNo">599</span> /**<a name="line.599"></a> |
| <span class="sourceLineNo">600</span> * Remove daughter region<a name="line.600"></a> |
| <span class="sourceLineNo">601</span> * @param regionInfo daughter {@link RegionInfo}<a name="line.601"></a> |
| <span class="sourceLineNo">602</span> * @throws IOException<a name="line.602"></a> |
| <span class="sourceLineNo">603</span> */<a name="line.603"></a> |
| <span class="sourceLineNo">604</span> void cleanupDaughterRegion(final RegionInfo regionInfo) throws IOException {<a name="line.604"></a> |
| <span class="sourceLineNo">605</span> Path regionDir = new Path(this.tableDir, regionInfo.getEncodedName());<a name="line.605"></a> |
| <span class="sourceLineNo">606</span> if (this.fs.exists(regionDir) && !deleteDir(regionDir)) {<a name="line.606"></a> |
| <span class="sourceLineNo">607</span> throw new IOException("Failed delete of " + regionDir);<a name="line.607"></a> |
| <span class="sourceLineNo">608</span> }<a name="line.608"></a> |
| <span class="sourceLineNo">609</span> }<a name="line.609"></a> |
| <span class="sourceLineNo">610</span><a name="line.610"></a> |
| <span class="sourceLineNo">611</span> /**<a name="line.611"></a> |
| <span class="sourceLineNo">612</span> * Commit a daughter region, moving it from the split temporary directory<a name="line.612"></a> |
| <span class="sourceLineNo">613</span> * to the proper location in the filesystem.<a name="line.613"></a> |
| <span class="sourceLineNo">614</span> *<a name="line.614"></a> |
| <span class="sourceLineNo">615</span> * @param regionInfo daughter {@link org.apache.hadoop.hbase.client.RegionInfo}<a name="line.615"></a> |
| <span class="sourceLineNo">616</span> * @throws IOException<a name="line.616"></a> |
| <span class="sourceLineNo">617</span> */<a name="line.617"></a> |
| <span class="sourceLineNo">618</span> public Path commitDaughterRegion(final RegionInfo regionInfo)<a name="line.618"></a> |
| <span class="sourceLineNo">619</span> throws IOException {<a name="line.619"></a> |
| <span class="sourceLineNo">620</span> Path regionDir = new Path(this.tableDir, regionInfo.getEncodedName());<a name="line.620"></a> |
| <span class="sourceLineNo">621</span> Path daughterTmpDir = this.getSplitsDir(regionInfo);<a name="line.621"></a> |
| <span class="sourceLineNo">622</span><a name="line.622"></a> |
| <span class="sourceLineNo">623</span> if (fs.exists(daughterTmpDir)) {<a name="line.623"></a> |
| <span class="sourceLineNo">624</span><a name="line.624"></a> |
| <span class="sourceLineNo">625</span> // Write HRI to a file in case we need to recover hbase:meta<a name="line.625"></a> |
| <span class="sourceLineNo">626</span> Path regionInfoFile = new Path(daughterTmpDir, REGION_INFO_FILE);<a name="line.626"></a> |
| <span class="sourceLineNo">627</span> byte[] regionInfoContent = getRegionInfoFileContent(regionInfo);<a name="line.627"></a> |
| <span class="sourceLineNo">628</span> writeRegionInfoFileContent(conf, fs, regionInfoFile, regionInfoContent);<a name="line.628"></a> |
| <span class="sourceLineNo">629</span><a name="line.629"></a> |
| <span class="sourceLineNo">630</span> // Move the daughter temp dir to the table dir<a name="line.630"></a> |
| <span class="sourceLineNo">631</span> if (!rename(daughterTmpDir, regionDir)) {<a name="line.631"></a> |
| <span class="sourceLineNo">632</span> throw new IOException("Unable to rename " + daughterTmpDir + " to " + regionDir);<a name="line.632"></a> |
| <span class="sourceLineNo">633</span> }<a name="line.633"></a> |
| <span class="sourceLineNo">634</span> }<a name="line.634"></a> |
| <span class="sourceLineNo">635</span><a name="line.635"></a> |
| <span class="sourceLineNo">636</span> return regionDir;<a name="line.636"></a> |
| <span class="sourceLineNo">637</span> }<a name="line.637"></a> |
| <span class="sourceLineNo">638</span><a name="line.638"></a> |
| <span class="sourceLineNo">639</span> /**<a name="line.639"></a> |
| <span class="sourceLineNo">640</span> * Create the region splits directory.<a name="line.640"></a> |
| <span class="sourceLineNo">641</span> */<a name="line.641"></a> |
| <span class="sourceLineNo">642</span> public void createSplitsDir(RegionInfo daughterA, RegionInfo daughterB) throws IOException {<a name="line.642"></a> |
| <span class="sourceLineNo">643</span> Path splitdir = getSplitsDir();<a name="line.643"></a> |
| <span class="sourceLineNo">644</span> if (fs.exists(splitdir)) {<a name="line.644"></a> |
| <span class="sourceLineNo">645</span> LOG.info("The " + splitdir + " directory exists. Hence deleting it to recreate it");<a name="line.645"></a> |
| <span class="sourceLineNo">646</span> if (!deleteDir(splitdir)) {<a name="line.646"></a> |
| <span class="sourceLineNo">647</span> throw new IOException("Failed deletion of " + splitdir + " before creating them again.");<a name="line.647"></a> |
| <span class="sourceLineNo">648</span> }<a name="line.648"></a> |
| <span class="sourceLineNo">649</span> }<a name="line.649"></a> |
| <span class="sourceLineNo">650</span> // splitDir doesn't exists now. No need to do an exists() call for it.<a name="line.650"></a> |
| <span class="sourceLineNo">651</span> if (!createDir(splitdir)) {<a name="line.651"></a> |
| <span class="sourceLineNo">652</span> throw new IOException("Failed create of " + splitdir);<a name="line.652"></a> |
| <span class="sourceLineNo">653</span> }<a name="line.653"></a> |
| <span class="sourceLineNo">654</span> Path daughterATmpDir = getSplitsDir(daughterA);<a name="line.654"></a> |
| <span class="sourceLineNo">655</span> if (!createDir(daughterATmpDir)) {<a name="line.655"></a> |
| <span class="sourceLineNo">656</span> throw new IOException("Failed create of " + daughterATmpDir);<a name="line.656"></a> |
| <span class="sourceLineNo">657</span> }<a name="line.657"></a> |
| <span class="sourceLineNo">658</span> Path daughterBTmpDir = getSplitsDir(daughterB);<a name="line.658"></a> |
| <span class="sourceLineNo">659</span> if (!createDir(daughterBTmpDir)) {<a name="line.659"></a> |
| <span class="sourceLineNo">660</span> throw new IOException("Failed create of " + daughterBTmpDir);<a name="line.660"></a> |
| <span class="sourceLineNo">661</span> }<a name="line.661"></a> |
| <span class="sourceLineNo">662</span> }<a name="line.662"></a> |
| <span class="sourceLineNo">663</span><a name="line.663"></a> |
| <span class="sourceLineNo">664</span> /**<a name="line.664"></a> |
| <span class="sourceLineNo">665</span> * Write out a split reference. Package local so it doesnt leak out of<a name="line.665"></a> |
| <span class="sourceLineNo">666</span> * regionserver.<a name="line.666"></a> |
| <span class="sourceLineNo">667</span> * @param hri {@link RegionInfo} of the destination<a name="line.667"></a> |
| <span class="sourceLineNo">668</span> * @param familyName Column Family Name<a name="line.668"></a> |
| <span class="sourceLineNo">669</span> * @param f File to split.<a name="line.669"></a> |
| <span class="sourceLineNo">670</span> * @param splitRow Split Row<a name="line.670"></a> |
| <span class="sourceLineNo">671</span> * @param top True if we are referring to the top half of the hfile.<a name="line.671"></a> |
| <span class="sourceLineNo">672</span> * @param splitPolicy A split policy instance; be careful! May not be full populated; e.g. if<a name="line.672"></a> |
| <span class="sourceLineNo">673</span> * this method is invoked on the Master side, then the RegionSplitPolicy will<a name="line.673"></a> |
| <span class="sourceLineNo">674</span> * NOT have a reference to a Region.<a name="line.674"></a> |
| <span class="sourceLineNo">675</span> * @return Path to created reference.<a name="line.675"></a> |
| <span class="sourceLineNo">676</span> * @throws IOException<a name="line.676"></a> |
| <span class="sourceLineNo">677</span> */<a name="line.677"></a> |
| <span class="sourceLineNo">678</span> public Path splitStoreFile(RegionInfo hri, String familyName, HStoreFile f, byte[] splitRow,<a name="line.678"></a> |
| <span class="sourceLineNo">679</span> boolean top, RegionSplitPolicy splitPolicy) throws IOException {<a name="line.679"></a> |
| <span class="sourceLineNo">680</span> if (splitPolicy == null || !splitPolicy.skipStoreFileRangeCheck(familyName)) {<a name="line.680"></a> |
| <span class="sourceLineNo">681</span> // Check whether the split row lies in the range of the store file<a name="line.681"></a> |
| <span class="sourceLineNo">682</span> // If it is outside the range, return directly.<a name="line.682"></a> |
| <span class="sourceLineNo">683</span> f.initReader();<a name="line.683"></a> |
| <span class="sourceLineNo">684</span> try {<a name="line.684"></a> |
| <span class="sourceLineNo">685</span> if (top) {<a name="line.685"></a> |
| <span class="sourceLineNo">686</span> //check if larger than last key.<a name="line.686"></a> |
| <span class="sourceLineNo">687</span> Cell splitKey = PrivateCellUtil.createFirstOnRow(splitRow);<a name="line.687"></a> |
| <span class="sourceLineNo">688</span> Optional<Cell> lastKey = f.getLastKey();<a name="line.688"></a> |
| <span class="sourceLineNo">689</span> // If lastKey is null means storefile is empty.<a name="line.689"></a> |
| <span class="sourceLineNo">690</span> if (!lastKey.isPresent()) {<a name="line.690"></a> |
| <span class="sourceLineNo">691</span> return null;<a name="line.691"></a> |
| <span class="sourceLineNo">692</span> }<a name="line.692"></a> |
| <span class="sourceLineNo">693</span> if (f.getComparator().compare(splitKey, lastKey.get()) > 0) {<a name="line.693"></a> |
| <span class="sourceLineNo">694</span> return null;<a name="line.694"></a> |
| <span class="sourceLineNo">695</span> }<a name="line.695"></a> |
| <span class="sourceLineNo">696</span> } else {<a name="line.696"></a> |
| <span class="sourceLineNo">697</span> //check if smaller than first key<a name="line.697"></a> |
| <span class="sourceLineNo">698</span> Cell splitKey = PrivateCellUtil.createLastOnRow(splitRow);<a name="line.698"></a> |
| <span class="sourceLineNo">699</span> Optional<Cell> firstKey = f.getFirstKey();<a name="line.699"></a> |
| <span class="sourceLineNo">700</span> // If firstKey is null means storefile is empty.<a name="line.700"></a> |
| <span class="sourceLineNo">701</span> if (!firstKey.isPresent()) {<a name="line.701"></a> |
| <span class="sourceLineNo">702</span> return null;<a name="line.702"></a> |
| <span class="sourceLineNo">703</span> }<a name="line.703"></a> |
| <span class="sourceLineNo">704</span> if (f.getComparator().compare(splitKey, firstKey.get()) < 0) {<a name="line.704"></a> |
| <span class="sourceLineNo">705</span> return null;<a name="line.705"></a> |
| <span class="sourceLineNo">706</span> }<a name="line.706"></a> |
| <span class="sourceLineNo">707</span> }<a name="line.707"></a> |
| <span class="sourceLineNo">708</span> } finally {<a name="line.708"></a> |
| <span class="sourceLineNo">709</span> f.closeStoreFile(f.getCacheConf() != null ? f.getCacheConf().shouldEvictOnClose() : true);<a name="line.709"></a> |
| <span class="sourceLineNo">710</span> }<a name="line.710"></a> |
| <span class="sourceLineNo">711</span> }<a name="line.711"></a> |
| <span class="sourceLineNo">712</span><a name="line.712"></a> |
| <span class="sourceLineNo">713</span> Path splitDir = new Path(getSplitsDir(hri), familyName);<a name="line.713"></a> |
| <span class="sourceLineNo">714</span> // A reference to the bottom half of the hsf store file.<a name="line.714"></a> |
| <span class="sourceLineNo">715</span> Reference r =<a name="line.715"></a> |
| <span class="sourceLineNo">716</span> top ? Reference.createTopReference(splitRow): Reference.createBottomReference(splitRow);<a name="line.716"></a> |
| <span class="sourceLineNo">717</span> // Add the referred-to regions name as a dot separated suffix.<a name="line.717"></a> |
| <span class="sourceLineNo">718</span> // See REF_NAME_REGEX regex above. The referred-to regions name is<a name="line.718"></a> |
| <span class="sourceLineNo">719</span> // up in the path of the passed in <code>f</code> -- parentdir is family,<a name="line.719"></a> |
| <span class="sourceLineNo">720</span> // then the directory above is the region name.<a name="line.720"></a> |
| <span class="sourceLineNo">721</span> String parentRegionName = regionInfoForFs.getEncodedName();<a name="line.721"></a> |
| <span class="sourceLineNo">722</span> // Write reference with same file id only with the other region name as<a name="line.722"></a> |
| <span class="sourceLineNo">723</span> // suffix and into the new region location (under same family).<a name="line.723"></a> |
| <span class="sourceLineNo">724</span> Path p = new Path(splitDir, f.getPath().getName() + "." + parentRegionName);<a name="line.724"></a> |
| <span class="sourceLineNo">725</span> return r.write(fs, p);<a name="line.725"></a> |
| <span class="sourceLineNo">726</span> }<a name="line.726"></a> |
| <span class="sourceLineNo">727</span><a name="line.727"></a> |
| <span class="sourceLineNo">728</span> // ===========================================================================<a name="line.728"></a> |
| <span class="sourceLineNo">729</span> // Merge Helpers<a name="line.729"></a> |
| <span class="sourceLineNo">730</span> // ===========================================================================<a name="line.730"></a> |
| <span class="sourceLineNo">731</span> /** @return {@link Path} to the temp directory used during merge operations */<a name="line.731"></a> |
| <span class="sourceLineNo">732</span> public Path getMergesDir() {<a name="line.732"></a> |
| <span class="sourceLineNo">733</span> return new Path(getRegionDir(), REGION_MERGES_DIR);<a name="line.733"></a> |
| <span class="sourceLineNo">734</span> }<a name="line.734"></a> |
| <span class="sourceLineNo">735</span><a name="line.735"></a> |
| <span class="sourceLineNo">736</span> Path getMergesDir(final RegionInfo hri) {<a name="line.736"></a> |
| <span class="sourceLineNo">737</span> return new Path(getMergesDir(), hri.getEncodedName());<a name="line.737"></a> |
| <span class="sourceLineNo">738</span> }<a name="line.738"></a> |
| <span class="sourceLineNo">739</span><a name="line.739"></a> |
| <span class="sourceLineNo">740</span> /**<a name="line.740"></a> |
| <span class="sourceLineNo">741</span> * Clean up any merge detritus that may have been left around from previous merge attempts.<a name="line.741"></a> |
| <span class="sourceLineNo">742</span> */<a name="line.742"></a> |
| <span class="sourceLineNo">743</span> void cleanupMergesDir() throws IOException {<a name="line.743"></a> |
| <span class="sourceLineNo">744</span> deleteDir(getMergesDir());<a name="line.744"></a> |
| <span class="sourceLineNo">745</span> }<a name="line.745"></a> |
| <span class="sourceLineNo">746</span><a name="line.746"></a> |
| <span class="sourceLineNo">747</span> /**<a name="line.747"></a> |
| <span class="sourceLineNo">748</span> * Remove merged region<a name="line.748"></a> |
| <span class="sourceLineNo">749</span> * @param mergedRegion {@link RegionInfo}<a name="line.749"></a> |
| <span class="sourceLineNo">750</span> * @throws IOException<a name="line.750"></a> |
| <span class="sourceLineNo">751</span> */<a name="line.751"></a> |
| <span class="sourceLineNo">752</span> public void cleanupMergedRegion(final RegionInfo mergedRegion) throws IOException {<a name="line.752"></a> |
| <span class="sourceLineNo">753</span> Path regionDir = new Path(this.tableDir, mergedRegion.getEncodedName());<a name="line.753"></a> |
| <span class="sourceLineNo">754</span> if (this.fs.exists(regionDir) && !this.fs.delete(regionDir, true)) {<a name="line.754"></a> |
| <span class="sourceLineNo">755</span> throw new IOException("Failed delete of " + regionDir);<a name="line.755"></a> |
| <span class="sourceLineNo">756</span> }<a name="line.756"></a> |
| <span class="sourceLineNo">757</span> }<a name="line.757"></a> |
| <span class="sourceLineNo">758</span><a name="line.758"></a> |
| <span class="sourceLineNo">759</span> static boolean mkdirs(FileSystem fs, Configuration conf, Path dir) throws IOException {<a name="line.759"></a> |
| <span class="sourceLineNo">760</span> if (FSUtils.isDistributedFileSystem(fs) ||<a name="line.760"></a> |
| <span class="sourceLineNo">761</span> !conf.getBoolean(HConstants.ENABLE_DATA_FILE_UMASK, false)) {<a name="line.761"></a> |
| <span class="sourceLineNo">762</span> return fs.mkdirs(dir);<a name="line.762"></a> |
| <span class="sourceLineNo">763</span> }<a name="line.763"></a> |
| <span class="sourceLineNo">764</span> FsPermission perms = CommonFSUtils.getFilePermissions(fs, conf, HConstants.DATA_FILE_UMASK_KEY);<a name="line.764"></a> |
| <span class="sourceLineNo">765</span> return fs.mkdirs(dir, perms);<a name="line.765"></a> |
| <span class="sourceLineNo">766</span> }<a name="line.766"></a> |
| <span class="sourceLineNo">767</span><a name="line.767"></a> |
| <span class="sourceLineNo">768</span> /**<a name="line.768"></a> |
| <span class="sourceLineNo">769</span> * Create the region merges directory, a temporary directory to accumulate<a name="line.769"></a> |
| <span class="sourceLineNo">770</span> * merges in.<a name="line.770"></a> |
| <span class="sourceLineNo">771</span> * @throws IOException If merges dir already exists or we fail to create it.<a name="line.771"></a> |
| <span class="sourceLineNo">772</span> * @see HRegionFileSystem#cleanupMergesDir()<a name="line.772"></a> |
| <span class="sourceLineNo">773</span> */<a name="line.773"></a> |
| <span class="sourceLineNo">774</span> public void createMergesDir() throws IOException {<a name="line.774"></a> |
| <span class="sourceLineNo">775</span> Path mergesdir = getMergesDir();<a name="line.775"></a> |
| <span class="sourceLineNo">776</span> if (fs.exists(mergesdir)) {<a name="line.776"></a> |
| <span class="sourceLineNo">777</span> LOG.info("{} directory exists. Deleting it to recreate it anew", mergesdir);<a name="line.777"></a> |
| <span class="sourceLineNo">778</span> if (!fs.delete(mergesdir, true)) {<a name="line.778"></a> |
| <span class="sourceLineNo">779</span> throw new IOException("Failed deletion of " + mergesdir + " before recreate.");<a name="line.779"></a> |
| <span class="sourceLineNo">780</span> }<a name="line.780"></a> |
| <span class="sourceLineNo">781</span> }<a name="line.781"></a> |
| <span class="sourceLineNo">782</span> if (!mkdirs(fs, conf, mergesdir)) {<a name="line.782"></a> |
| <span class="sourceLineNo">783</span> throw new IOException("Failed create of " + mergesdir);<a name="line.783"></a> |
| <span class="sourceLineNo">784</span> }<a name="line.784"></a> |
| <span class="sourceLineNo">785</span> }<a name="line.785"></a> |
| <span class="sourceLineNo">786</span><a name="line.786"></a> |
| <span class="sourceLineNo">787</span> /**<a name="line.787"></a> |
| <span class="sourceLineNo">788</span> * Write out a merge reference under the given merges directory. Package local<a name="line.788"></a> |
| <span class="sourceLineNo">789</span> * so it doesnt leak out of regionserver.<a name="line.789"></a> |
| <span class="sourceLineNo">790</span> * @param mergedRegion {@link RegionInfo} of the merged region<a name="line.790"></a> |
| <span class="sourceLineNo">791</span> * @param familyName Column Family Name<a name="line.791"></a> |
| <span class="sourceLineNo">792</span> * @param f File to create reference.<a name="line.792"></a> |
| <span class="sourceLineNo">793</span> * @param mergedDir<a name="line.793"></a> |
| <span class="sourceLineNo">794</span> * @return Path to created reference.<a name="line.794"></a> |
| <span class="sourceLineNo">795</span> * @throws IOException<a name="line.795"></a> |
| <span class="sourceLineNo">796</span> */<a name="line.796"></a> |
| <span class="sourceLineNo">797</span> public Path mergeStoreFile(RegionInfo mergedRegion, String familyName, HStoreFile f,<a name="line.797"></a> |
| <span class="sourceLineNo">798</span> Path mergedDir) throws IOException {<a name="line.798"></a> |
| <span class="sourceLineNo">799</span> Path referenceDir = new Path(new Path(mergedDir,<a name="line.799"></a> |
| <span class="sourceLineNo">800</span> mergedRegion.getEncodedName()), familyName);<a name="line.800"></a> |
| <span class="sourceLineNo">801</span> // A whole reference to the store file.<a name="line.801"></a> |
| <span class="sourceLineNo">802</span> Reference r = Reference.createTopReference(regionInfoForFs.getStartKey());<a name="line.802"></a> |
| <span class="sourceLineNo">803</span> // Add the referred-to regions name as a dot separated suffix.<a name="line.803"></a> |
| <span class="sourceLineNo">804</span> // See REF_NAME_REGEX regex above. The referred-to regions name is<a name="line.804"></a> |
| <span class="sourceLineNo">805</span> // up in the path of the passed in <code>f</code> -- parentdir is family,<a name="line.805"></a> |
| <span class="sourceLineNo">806</span> // then the directory above is the region name.<a name="line.806"></a> |
| <span class="sourceLineNo">807</span> String mergingRegionName = regionInfoForFs.getEncodedName();<a name="line.807"></a> |
| <span class="sourceLineNo">808</span> // Write reference with same file id only with the other region name as<a name="line.808"></a> |
| <span class="sourceLineNo">809</span> // suffix and into the new region location (under same family).<a name="line.809"></a> |
| <span class="sourceLineNo">810</span> Path p = new Path(referenceDir, f.getPath().getName() + "."<a name="line.810"></a> |
| <span class="sourceLineNo">811</span> + mergingRegionName);<a name="line.811"></a> |
| <span class="sourceLineNo">812</span> return r.write(fs, p);<a name="line.812"></a> |
| <span class="sourceLineNo">813</span> }<a name="line.813"></a> |
| <span class="sourceLineNo">814</span><a name="line.814"></a> |
| <span class="sourceLineNo">815</span> /**<a name="line.815"></a> |
| <span class="sourceLineNo">816</span> * Commit a merged region, moving it from the merges temporary directory to<a name="line.816"></a> |
| <span class="sourceLineNo">817</span> * the proper location in the filesystem.<a name="line.817"></a> |
| <span class="sourceLineNo">818</span> * @param mergedRegionInfo merged region {@link RegionInfo}<a name="line.818"></a> |
| <span class="sourceLineNo">819</span> * @throws IOException<a name="line.819"></a> |
| <span class="sourceLineNo">820</span> */<a name="line.820"></a> |
| <span class="sourceLineNo">821</span> public void commitMergedRegion(final RegionInfo mergedRegionInfo) throws IOException {<a name="line.821"></a> |
| <span class="sourceLineNo">822</span> Path regionDir = new Path(this.tableDir, mergedRegionInfo.getEncodedName());<a name="line.822"></a> |
| <span class="sourceLineNo">823</span> Path mergedRegionTmpDir = this.getMergesDir(mergedRegionInfo);<a name="line.823"></a> |
| <span class="sourceLineNo">824</span> // Move the tmp dir to the expected location<a name="line.824"></a> |
| <span class="sourceLineNo">825</span> if (mergedRegionTmpDir != null && fs.exists(mergedRegionTmpDir)) {<a name="line.825"></a> |
| <span class="sourceLineNo">826</span><a name="line.826"></a> |
| <span class="sourceLineNo">827</span> // Write HRI to a file in case we need to recover hbase:meta<a name="line.827"></a> |
| <span class="sourceLineNo">828</span> Path regionInfoFile = new Path(mergedRegionTmpDir, REGION_INFO_FILE);<a name="line.828"></a> |
| <span class="sourceLineNo">829</span> byte[] regionInfoContent = getRegionInfoFileContent(regionInfo);<a name="line.829"></a> |
| <span class="sourceLineNo">830</span> writeRegionInfoFileContent(conf, fs, regionInfoFile, regionInfoContent);<a name="line.830"></a> |
| <span class="sourceLineNo">831</span><a name="line.831"></a> |
| <span class="sourceLineNo">832</span> if (!fs.rename(mergedRegionTmpDir, regionDir)) {<a name="line.832"></a> |
| <span class="sourceLineNo">833</span> throw new IOException("Unable to rename " + mergedRegionTmpDir + " to "<a name="line.833"></a> |
| <span class="sourceLineNo">834</span> + regionDir);<a name="line.834"></a> |
| <span class="sourceLineNo">835</span> }<a name="line.835"></a> |
| <span class="sourceLineNo">836</span> }<a name="line.836"></a> |
| <span class="sourceLineNo">837</span> }<a name="line.837"></a> |
| <span class="sourceLineNo">838</span><a name="line.838"></a> |
| <span class="sourceLineNo">839</span> // ===========================================================================<a name="line.839"></a> |
| <span class="sourceLineNo">840</span> // Create/Open/Delete Helpers<a name="line.840"></a> |
| <span class="sourceLineNo">841</span> // ===========================================================================<a name="line.841"></a> |
| <span class="sourceLineNo">842</span> /**<a name="line.842"></a> |
| <span class="sourceLineNo">843</span> * Log the current state of the region<a name="line.843"></a> |
| <span class="sourceLineNo">844</span> * @param LOG log to output information<a name="line.844"></a> |
| <span class="sourceLineNo">845</span> * @throws IOException if an unexpected exception occurs<a name="line.845"></a> |
| <span class="sourceLineNo">846</span> */<a name="line.846"></a> |
| <span class="sourceLineNo">847</span> void logFileSystemState(final Logger LOG) throws IOException {<a name="line.847"></a> |
| <span class="sourceLineNo">848</span> CommonFSUtils.logFileSystemState(fs, this.getRegionDir(), LOG);<a name="line.848"></a> |
| <span class="sourceLineNo">849</span> }<a name="line.849"></a> |
| <span class="sourceLineNo">850</span><a name="line.850"></a> |
| <span class="sourceLineNo">851</span> /**<a name="line.851"></a> |
| <span class="sourceLineNo">852</span> * @param hri<a name="line.852"></a> |
| <span class="sourceLineNo">853</span> * @return Content of the file we write out to the filesystem under a region<a name="line.853"></a> |
| <span class="sourceLineNo">854</span> * @throws IOException<a name="line.854"></a> |
| <span class="sourceLineNo">855</span> */<a name="line.855"></a> |
| <span class="sourceLineNo">856</span> private static byte[] getRegionInfoFileContent(final RegionInfo hri) throws IOException {<a name="line.856"></a> |
| <span class="sourceLineNo">857</span> return RegionInfo.toDelimitedByteArray(hri);<a name="line.857"></a> |
| <span class="sourceLineNo">858</span> }<a name="line.858"></a> |
| <span class="sourceLineNo">859</span><a name="line.859"></a> |
| <span class="sourceLineNo">860</span> /**<a name="line.860"></a> |
| <span class="sourceLineNo">861</span> * Create a {@link RegionInfo} from the serialized version on-disk.<a name="line.861"></a> |
| <span class="sourceLineNo">862</span> * @param fs {@link FileSystem} that contains the Region Info file<a name="line.862"></a> |
| <span class="sourceLineNo">863</span> * @param regionDir {@link Path} to the Region Directory that contains the Info file<a name="line.863"></a> |
| <span class="sourceLineNo">864</span> * @return An {@link RegionInfo} instance gotten from the Region Info file.<a name="line.864"></a> |
| <span class="sourceLineNo">865</span> * @throws IOException if an error occurred during file open/read operation.<a name="line.865"></a> |
| <span class="sourceLineNo">866</span> */<a name="line.866"></a> |
| <span class="sourceLineNo">867</span> public static RegionInfo loadRegionInfoFileContent(final FileSystem fs, final Path regionDir)<a name="line.867"></a> |
| <span class="sourceLineNo">868</span> throws IOException {<a name="line.868"></a> |
| <span class="sourceLineNo">869</span> FSDataInputStream in = fs.open(new Path(regionDir, REGION_INFO_FILE));<a name="line.869"></a> |
| <span class="sourceLineNo">870</span> try {<a name="line.870"></a> |
| <span class="sourceLineNo">871</span> return RegionInfo.parseFrom(in);<a name="line.871"></a> |
| <span class="sourceLineNo">872</span> } finally {<a name="line.872"></a> |
| <span class="sourceLineNo">873</span> in.close();<a name="line.873"></a> |
| <span class="sourceLineNo">874</span> }<a name="line.874"></a> |
| <span class="sourceLineNo">875</span> }<a name="line.875"></a> |
| <span class="sourceLineNo">876</span><a name="line.876"></a> |
| <span class="sourceLineNo">877</span> /**<a name="line.877"></a> |
| <span class="sourceLineNo">878</span> * Write the .regioninfo file on-disk.<a name="line.878"></a> |
| <span class="sourceLineNo">879</span> * <p/><a name="line.879"></a> |
| <span class="sourceLineNo">880</span> * Overwrites if exists already.<a name="line.880"></a> |
| <span class="sourceLineNo">881</span> */<a name="line.881"></a> |
| <span class="sourceLineNo">882</span> private static void writeRegionInfoFileContent(final Configuration conf, final FileSystem fs,<a name="line.882"></a> |
| <span class="sourceLineNo">883</span> final Path regionInfoFile, final byte[] content) throws IOException {<a name="line.883"></a> |
| <span class="sourceLineNo">884</span> // First check to get the permissions<a name="line.884"></a> |
| <span class="sourceLineNo">885</span> FsPermission perms = CommonFSUtils.getFilePermissions(fs, conf, HConstants.DATA_FILE_UMASK_KEY);<a name="line.885"></a> |
| <span class="sourceLineNo">886</span> // Write the RegionInfo file content<a name="line.886"></a> |
| <span class="sourceLineNo">887</span> try (FSDataOutputStream out = FSUtils.create(conf, fs, regionInfoFile, perms, null)) {<a name="line.887"></a> |
| <span class="sourceLineNo">888</span> out.write(content);<a name="line.888"></a> |
| <span class="sourceLineNo">889</span> }<a name="line.889"></a> |
| <span class="sourceLineNo">890</span> }<a name="line.890"></a> |
| <span class="sourceLineNo">891</span><a name="line.891"></a> |
| <span class="sourceLineNo">892</span> /**<a name="line.892"></a> |
| <span class="sourceLineNo">893</span> * Write out an info file under the stored region directory. Useful recovering mangled regions.<a name="line.893"></a> |
| <span class="sourceLineNo">894</span> * If the regionInfo already exists on-disk, then we fast exit.<a name="line.894"></a> |
| <span class="sourceLineNo">895</span> */<a name="line.895"></a> |
| <span class="sourceLineNo">896</span> void checkRegionInfoOnFilesystem() throws IOException {<a name="line.896"></a> |
| <span class="sourceLineNo">897</span> // Compose the content of the file so we can compare to length in filesystem. If not same,<a name="line.897"></a> |
| <span class="sourceLineNo">898</span> // rewrite it (it may have been written in the old format using Writables instead of pb). The<a name="line.898"></a> |
| <span class="sourceLineNo">899</span> // pb version is much shorter -- we write now w/o the toString version -- so checking length<a name="line.899"></a> |
| <span class="sourceLineNo">900</span> // only should be sufficient. I don't want to read the file every time to check if it pb<a name="line.900"></a> |
| <span class="sourceLineNo">901</span> // serialized.<a name="line.901"></a> |
| <span class="sourceLineNo">902</span> byte[] content = getRegionInfoFileContent(regionInfoForFs);<a name="line.902"></a> |
| <span class="sourceLineNo">903</span><a name="line.903"></a> |
| <span class="sourceLineNo">904</span> // Verify if the region directory exists before opening a region. We need to do this since if<a name="line.904"></a> |
| <span class="sourceLineNo">905</span> // the region directory doesn't exist we will re-create the region directory and a new HRI<a name="line.905"></a> |
| <span class="sourceLineNo">906</span> // when HRegion.openHRegion() is called.<a name="line.906"></a> |
| <span class="sourceLineNo">907</span> try {<a name="line.907"></a> |
| <span class="sourceLineNo">908</span> FileStatus status = fs.getFileStatus(getRegionDir());<a name="line.908"></a> |
| <span class="sourceLineNo">909</span> } catch (FileNotFoundException e) {<a name="line.909"></a> |
| <span class="sourceLineNo">910</span> LOG.warn(getRegionDir() + " doesn't exist for region: " + regionInfoForFs.getEncodedName() +<a name="line.910"></a> |
| <span class="sourceLineNo">911</span> " on table " + regionInfo.getTable());<a name="line.911"></a> |
| <span class="sourceLineNo">912</span> }<a name="line.912"></a> |
| <span class="sourceLineNo">913</span><a name="line.913"></a> |
| <span class="sourceLineNo">914</span> try {<a name="line.914"></a> |
| <span class="sourceLineNo">915</span> Path regionInfoFile = new Path(getRegionDir(), REGION_INFO_FILE);<a name="line.915"></a> |
| <span class="sourceLineNo">916</span> FileStatus status = fs.getFileStatus(regionInfoFile);<a name="line.916"></a> |
| <span class="sourceLineNo">917</span> if (status != null && status.getLen() == content.length) {<a name="line.917"></a> |
| <span class="sourceLineNo">918</span> // Then assume the content good and move on.<a name="line.918"></a> |
| <span class="sourceLineNo">919</span> // NOTE: that the length is not sufficient to define the the content matches.<a name="line.919"></a> |
| <span class="sourceLineNo">920</span> return;<a name="line.920"></a> |
| <span class="sourceLineNo">921</span> }<a name="line.921"></a> |
| <span class="sourceLineNo">922</span><a name="line.922"></a> |
| <span class="sourceLineNo">923</span> LOG.info("Rewriting .regioninfo file at: " + regionInfoFile);<a name="line.923"></a> |
| <span class="sourceLineNo">924</span> if (!fs.delete(regionInfoFile, false)) {<a name="line.924"></a> |
| <span class="sourceLineNo">925</span> throw new IOException("Unable to remove existing " + regionInfoFile);<a name="line.925"></a> |
| <span class="sourceLineNo">926</span> }<a name="line.926"></a> |
| <span class="sourceLineNo">927</span> } catch (FileNotFoundException e) {<a name="line.927"></a> |
| <span class="sourceLineNo">928</span> LOG.warn(REGION_INFO_FILE + " file not found for region: " + regionInfoForFs.getEncodedName() +<a name="line.928"></a> |
| <span class="sourceLineNo">929</span> " on table " + regionInfo.getTable());<a name="line.929"></a> |
| <span class="sourceLineNo">930</span> }<a name="line.930"></a> |
| <span class="sourceLineNo">931</span><a name="line.931"></a> |
| <span class="sourceLineNo">932</span> // Write HRI to a file in case we need to recover hbase:meta<a name="line.932"></a> |
| <span class="sourceLineNo">933</span> writeRegionInfoOnFilesystem(content, true);<a name="line.933"></a> |
| <span class="sourceLineNo">934</span> }<a name="line.934"></a> |
| <span class="sourceLineNo">935</span><a name="line.935"></a> |
| <span class="sourceLineNo">936</span> /**<a name="line.936"></a> |
| <span class="sourceLineNo">937</span> * Write out an info file under the region directory. Useful recovering mangled regions.<a name="line.937"></a> |
| <span class="sourceLineNo">938</span> * @param useTempDir indicate whether or not using the region .tmp dir for a safer file creation.<a name="line.938"></a> |
| <span class="sourceLineNo">939</span> */<a name="line.939"></a> |
| <span class="sourceLineNo">940</span> private void writeRegionInfoOnFilesystem(boolean useTempDir) throws IOException {<a name="line.940"></a> |
| <span class="sourceLineNo">941</span> byte[] content = getRegionInfoFileContent(regionInfoForFs);<a name="line.941"></a> |
| <span class="sourceLineNo">942</span> writeRegionInfoOnFilesystem(content, useTempDir);<a name="line.942"></a> |
| <span class="sourceLineNo">943</span> }<a name="line.943"></a> |
| <span class="sourceLineNo">944</span><a name="line.944"></a> |
| <span class="sourceLineNo">945</span> /**<a name="line.945"></a> |
| <span class="sourceLineNo">946</span> * Write out an info file under the region directory. Useful recovering mangled regions.<a name="line.946"></a> |
| <span class="sourceLineNo">947</span> * @param regionInfoContent serialized version of the {@link RegionInfo}<a name="line.947"></a> |
| <span class="sourceLineNo">948</span> * @param useTempDir indicate whether or not using the region .tmp dir for a safer file creation.<a name="line.948"></a> |
| <span class="sourceLineNo">949</span> */<a name="line.949"></a> |
| <span class="sourceLineNo">950</span> private void writeRegionInfoOnFilesystem(final byte[] regionInfoContent,<a name="line.950"></a> |
| <span class="sourceLineNo">951</span> final boolean useTempDir) throws IOException {<a name="line.951"></a> |
| <span class="sourceLineNo">952</span> Path regionInfoFile = new Path(getRegionDir(), REGION_INFO_FILE);<a name="line.952"></a> |
| <span class="sourceLineNo">953</span> if (useTempDir) {<a name="line.953"></a> |
| <span class="sourceLineNo">954</span> // Create in tmpDir and then move into place in case we crash after<a name="line.954"></a> |
| <span class="sourceLineNo">955</span> // create but before close. If we don't successfully close the file,<a name="line.955"></a> |
| <span class="sourceLineNo">956</span> // subsequent region reopens will fail the below because create is<a name="line.956"></a> |
| <span class="sourceLineNo">957</span> // registered in NN.<a name="line.957"></a> |
| <span class="sourceLineNo">958</span><a name="line.958"></a> |
| <span class="sourceLineNo">959</span> // And then create the file<a name="line.959"></a> |
| <span class="sourceLineNo">960</span> Path tmpPath = new Path(getTempDir(), REGION_INFO_FILE);<a name="line.960"></a> |
| <span class="sourceLineNo">961</span><a name="line.961"></a> |
| <span class="sourceLineNo">962</span> // If datanode crashes or if the RS goes down just before the close is called while trying to<a name="line.962"></a> |
| <span class="sourceLineNo">963</span> // close the created regioninfo file in the .tmp directory then on next<a name="line.963"></a> |
| <span class="sourceLineNo">964</span> // creation we will be getting AlreadyCreatedException.<a name="line.964"></a> |
| <span class="sourceLineNo">965</span> // Hence delete and create the file if exists.<a name="line.965"></a> |
| <span class="sourceLineNo">966</span> if (CommonFSUtils.isExists(fs, tmpPath)) {<a name="line.966"></a> |
| <span class="sourceLineNo">967</span> CommonFSUtils.delete(fs, tmpPath, true);<a name="line.967"></a> |
| <span class="sourceLineNo">968</span> }<a name="line.968"></a> |
| <span class="sourceLineNo">969</span><a name="line.969"></a> |
| <span class="sourceLineNo">970</span> // Write HRI to a file in case we need to recover hbase:meta<a name="line.970"></a> |
| <span class="sourceLineNo">971</span> writeRegionInfoFileContent(conf, fs, tmpPath, regionInfoContent);<a name="line.971"></a> |
| <span class="sourceLineNo">972</span><a name="line.972"></a> |
| <span class="sourceLineNo">973</span> // Move the created file to the original path<a name="line.973"></a> |
| <span class="sourceLineNo">974</span> if (fs.exists(tmpPath) && !rename(tmpPath, regionInfoFile)) {<a name="line.974"></a> |
| <span class="sourceLineNo">975</span> throw new IOException("Unable to rename " + tmpPath + " to " + regionInfoFile);<a name="line.975"></a> |
| <span class="sourceLineNo">976</span> }<a name="line.976"></a> |
| <span class="sourceLineNo">977</span> } else {<a name="line.977"></a> |
| <span class="sourceLineNo">978</span> // Write HRI to a file in case we need to recover hbase:meta<a name="line.978"></a> |
| <span class="sourceLineNo">979</span> writeRegionInfoFileContent(conf, fs, regionInfoFile, regionInfoContent);<a name="line.979"></a> |
| <span class="sourceLineNo">980</span> }<a name="line.980"></a> |
| <span class="sourceLineNo">981</span> }<a name="line.981"></a> |
| <span class="sourceLineNo">982</span><a name="line.982"></a> |
| <span class="sourceLineNo">983</span> /**<a name="line.983"></a> |
| <span class="sourceLineNo">984</span> * Create a new Region on file-system.<a name="line.984"></a> |
| <span class="sourceLineNo">985</span> * @param conf the {@link Configuration} to use<a name="line.985"></a> |
| <span class="sourceLineNo">986</span> * @param fs {@link FileSystem} from which to add the region<a name="line.986"></a> |
| <span class="sourceLineNo">987</span> * @param tableDir {@link Path} to where the table is being stored<a name="line.987"></a> |
| <span class="sourceLineNo">988</span> * @param regionInfo {@link RegionInfo} for region to be added<a name="line.988"></a> |
| <span class="sourceLineNo">989</span> * @throws IOException if the region creation fails due to a FileSystem exception.<a name="line.989"></a> |
| <span class="sourceLineNo">990</span> */<a name="line.990"></a> |
| <span class="sourceLineNo">991</span> public static HRegionFileSystem createRegionOnFileSystem(final Configuration conf,<a name="line.991"></a> |
| <span class="sourceLineNo">992</span> final FileSystem fs, final Path tableDir, final RegionInfo regionInfo) throws IOException {<a name="line.992"></a> |
| <span class="sourceLineNo">993</span> HRegionFileSystem regionFs = new HRegionFileSystem(conf, fs, tableDir, regionInfo);<a name="line.993"></a> |
| <span class="sourceLineNo">994</span><a name="line.994"></a> |
| <span class="sourceLineNo">995</span> // We only create a .regioninfo and the region directory if this is the default region replica<a name="line.995"></a> |
| <span class="sourceLineNo">996</span> if (regionInfo.getReplicaId() == RegionInfo.DEFAULT_REPLICA_ID) {<a name="line.996"></a> |
| <span class="sourceLineNo">997</span> Path regionDir = regionFs.getRegionDir();<a name="line.997"></a> |
| <span class="sourceLineNo">998</span> if (fs.exists(regionDir)) {<a name="line.998"></a> |
| <span class="sourceLineNo">999</span> LOG.warn("Trying to create a region that already exists on disk: " + regionDir);<a name="line.999"></a> |
| <span class="sourceLineNo">1000</span> } else {<a name="line.1000"></a> |
| <span class="sourceLineNo">1001</span> // Create the region directory<a name="line.1001"></a> |
| <span class="sourceLineNo">1002</span> if (!createDirOnFileSystem(fs, conf, regionDir)) {<a name="line.1002"></a> |
| <span class="sourceLineNo">1003</span> LOG.warn("Unable to create the region directory: " + regionDir);<a name="line.1003"></a> |
| <span class="sourceLineNo">1004</span> throw new IOException("Unable to create region directory: " + regionDir);<a name="line.1004"></a> |
| <span class="sourceLineNo">1005</span> }<a name="line.1005"></a> |
| <span class="sourceLineNo">1006</span> }<a name="line.1006"></a> |
| <span class="sourceLineNo">1007</span><a name="line.1007"></a> |
| <span class="sourceLineNo">1008</span> // Write HRI to a file in case we need to recover hbase:meta<a name="line.1008"></a> |
| <span class="sourceLineNo">1009</span> regionFs.writeRegionInfoOnFilesystem(false);<a name="line.1009"></a> |
| <span class="sourceLineNo">1010</span> } else {<a name="line.1010"></a> |
| <span class="sourceLineNo">1011</span> if (LOG.isDebugEnabled())<a name="line.1011"></a> |
| <span class="sourceLineNo">1012</span> LOG.debug("Skipping creation of .regioninfo file for " + regionInfo);<a name="line.1012"></a> |
| <span class="sourceLineNo">1013</span> }<a name="line.1013"></a> |
| <span class="sourceLineNo">1014</span> return regionFs;<a name="line.1014"></a> |
| <span class="sourceLineNo">1015</span> }<a name="line.1015"></a> |
| <span class="sourceLineNo">1016</span><a name="line.1016"></a> |
| <span class="sourceLineNo">1017</span> /**<a name="line.1017"></a> |
| <span class="sourceLineNo">1018</span> * Open Region from file-system.<a name="line.1018"></a> |
| <span class="sourceLineNo">1019</span> * @param conf the {@link Configuration} to use<a name="line.1019"></a> |
| <span class="sourceLineNo">1020</span> * @param fs {@link FileSystem} from which to add the region<a name="line.1020"></a> |
| <span class="sourceLineNo">1021</span> * @param tableDir {@link Path} to where the table is being stored<a name="line.1021"></a> |
| <span class="sourceLineNo">1022</span> * @param regionInfo {@link RegionInfo} for region to be added<a name="line.1022"></a> |
| <span class="sourceLineNo">1023</span> * @param readOnly True if you don't want to edit the region data<a name="line.1023"></a> |
| <span class="sourceLineNo">1024</span> * @throws IOException if the region creation fails due to a FileSystem exception.<a name="line.1024"></a> |
| <span class="sourceLineNo">1025</span> */<a name="line.1025"></a> |
| <span class="sourceLineNo">1026</span> public static HRegionFileSystem openRegionFromFileSystem(final Configuration conf,<a name="line.1026"></a> |
| <span class="sourceLineNo">1027</span> final FileSystem fs, final Path tableDir, final RegionInfo regionInfo, boolean readOnly)<a name="line.1027"></a> |
| <span class="sourceLineNo">1028</span> throws IOException {<a name="line.1028"></a> |
| <span class="sourceLineNo">1029</span> HRegionFileSystem regionFs = new HRegionFileSystem(conf, fs, tableDir, regionInfo);<a name="line.1029"></a> |
| <span class="sourceLineNo">1030</span> Path regionDir = regionFs.getRegionDir();<a name="line.1030"></a> |
| <span class="sourceLineNo">1031</span><a name="line.1031"></a> |
| <span class="sourceLineNo">1032</span> if (!fs.exists(regionDir)) {<a name="line.1032"></a> |
| <span class="sourceLineNo">1033</span> LOG.warn("Trying to open a region that do not exists on disk: " + regionDir);<a name="line.1033"></a> |
| <span class="sourceLineNo">1034</span> throw new IOException("The specified region do not exists on disk: " + regionDir);<a name="line.1034"></a> |
| <span class="sourceLineNo">1035</span> }<a name="line.1035"></a> |
| <span class="sourceLineNo">1036</span><a name="line.1036"></a> |
| <span class="sourceLineNo">1037</span> if (!readOnly) {<a name="line.1037"></a> |
| <span class="sourceLineNo">1038</span> // Cleanup temporary directories<a name="line.1038"></a> |
| <span class="sourceLineNo">1039</span> regionFs.cleanupTempDir();<a name="line.1039"></a> |
| <span class="sourceLineNo">1040</span> regionFs.cleanupSplitsDir();<a name="line.1040"></a> |
| <span class="sourceLineNo">1041</span> regionFs.cleanupMergesDir();<a name="line.1041"></a> |
| <span class="sourceLineNo">1042</span><a name="line.1042"></a> |
| <span class="sourceLineNo">1043</span> // If it doesn't exists, Write HRI to a file, in case we need to recover hbase:meta<a name="line.1043"></a> |
| <span class="sourceLineNo">1044</span> // Only create HRI if we are the default replica<a name="line.1044"></a> |
| <span class="sourceLineNo">1045</span> if (regionInfo.getReplicaId() == RegionInfo.DEFAULT_REPLICA_ID) {<a name="line.1045"></a> |
| <span class="sourceLineNo">1046</span> regionFs.checkRegionInfoOnFilesystem();<a name="line.1046"></a> |
| <span class="sourceLineNo">1047</span> } else {<a name="line.1047"></a> |
| <span class="sourceLineNo">1048</span> if (LOG.isDebugEnabled()) {<a name="line.1048"></a> |
| <span class="sourceLineNo">1049</span> LOG.debug("Skipping creation of .regioninfo file for " + regionInfo);<a name="line.1049"></a> |
| <span class="sourceLineNo">1050</span> }<a name="line.1050"></a> |
| <span class="sourceLineNo">1051</span> }<a name="line.1051"></a> |
| <span class="sourceLineNo">1052</span> }<a name="line.1052"></a> |
| <span class="sourceLineNo">1053</span><a name="line.1053"></a> |
| <span class="sourceLineNo">1054</span> return regionFs;<a name="line.1054"></a> |
| <span class="sourceLineNo">1055</span> }<a name="line.1055"></a> |
| <span class="sourceLineNo">1056</span><a name="line.1056"></a> |
| <span class="sourceLineNo">1057</span> /**<a name="line.1057"></a> |
| <span class="sourceLineNo">1058</span> * Remove the region from the table directory, archiving the region's hfiles.<a name="line.1058"></a> |
| <span class="sourceLineNo">1059</span> * @param conf the {@link Configuration} to use<a name="line.1059"></a> |
| <span class="sourceLineNo">1060</span> * @param fs {@link FileSystem} from which to remove the region<a name="line.1060"></a> |
| <span class="sourceLineNo">1061</span> * @param tableDir {@link Path} to where the table is being stored<a name="line.1061"></a> |
| <span class="sourceLineNo">1062</span> * @param regionInfo {@link RegionInfo} for region to be deleted<a name="line.1062"></a> |
| <span class="sourceLineNo">1063</span> * @throws IOException if the request cannot be completed<a name="line.1063"></a> |
| <span class="sourceLineNo">1064</span> */<a name="line.1064"></a> |
| <span class="sourceLineNo">1065</span> public static void deleteRegionFromFileSystem(final Configuration conf,<a name="line.1065"></a> |
| <span class="sourceLineNo">1066</span> final FileSystem fs, final Path tableDir, final RegionInfo regionInfo) throws IOException {<a name="line.1066"></a> |
| <span class="sourceLineNo">1067</span> HRegionFileSystem regionFs = new HRegionFileSystem(conf, fs, tableDir, regionInfo);<a name="line.1067"></a> |
| <span class="sourceLineNo">1068</span> Path regionDir = regionFs.getRegionDir();<a name="line.1068"></a> |
| <span class="sourceLineNo">1069</span><a name="line.1069"></a> |
| <span class="sourceLineNo">1070</span> if (!fs.exists(regionDir)) {<a name="line.1070"></a> |
| <span class="sourceLineNo">1071</span> LOG.warn("Trying to delete a region that do not exists on disk: " + regionDir);<a name="line.1071"></a> |
| <span class="sourceLineNo">1072</span> return;<a name="line.1072"></a> |
| <span class="sourceLineNo">1073</span> }<a name="line.1073"></a> |
| <span class="sourceLineNo">1074</span><a name="line.1074"></a> |
| <span class="sourceLineNo">1075</span> if (LOG.isDebugEnabled()) {<a name="line.1075"></a> |
| <span class="sourceLineNo">1076</span> LOG.debug("DELETING region " + regionDir);<a name="line.1076"></a> |
| <span class="sourceLineNo">1077</span> }<a name="line.1077"></a> |
| <span class="sourceLineNo">1078</span><a name="line.1078"></a> |
| <span class="sourceLineNo">1079</span> // Archive region<a name="line.1079"></a> |
| <span class="sourceLineNo">1080</span> Path rootDir = CommonFSUtils.getRootDir(conf);<a name="line.1080"></a> |
| <span class="sourceLineNo">1081</span> HFileArchiver.archiveRegion(fs, rootDir, tableDir, regionDir);<a name="line.1081"></a> |
| <span class="sourceLineNo">1082</span><a name="line.1082"></a> |
| <span class="sourceLineNo">1083</span> // Delete empty region dir<a name="line.1083"></a> |
| <span class="sourceLineNo">1084</span> if (!fs.delete(regionDir, true)) {<a name="line.1084"></a> |
| <span class="sourceLineNo">1085</span> LOG.warn("Failed delete of " + regionDir);<a name="line.1085"></a> |
| <span class="sourceLineNo">1086</span> }<a name="line.1086"></a> |
| <span class="sourceLineNo">1087</span> }<a name="line.1087"></a> |
| <span class="sourceLineNo">1088</span><a name="line.1088"></a> |
| <span class="sourceLineNo">1089</span> /**<a name="line.1089"></a> |
| <span class="sourceLineNo">1090</span> * Creates a directory. Assumes the user has already checked for this directory existence.<a name="line.1090"></a> |
| <span class="sourceLineNo">1091</span> * @param dir<a name="line.1091"></a> |
| <span class="sourceLineNo">1092</span> * @return the result of fs.mkdirs(). In case underlying fs throws an IOException, it checks<a name="line.1092"></a> |
| <span class="sourceLineNo">1093</span> * whether the directory exists or not, and returns true if it exists.<a name="line.1093"></a> |
| <span class="sourceLineNo">1094</span> * @throws IOException<a name="line.1094"></a> |
| <span class="sourceLineNo">1095</span> */<a name="line.1095"></a> |
| <span class="sourceLineNo">1096</span> boolean createDir(Path dir) throws IOException {<a name="line.1096"></a> |
| <span class="sourceLineNo">1097</span> int i = 0;<a name="line.1097"></a> |
| <span class="sourceLineNo">1098</span> IOException lastIOE = null;<a name="line.1098"></a> |
| <span class="sourceLineNo">1099</span> do {<a name="line.1099"></a> |
| <span class="sourceLineNo">1100</span> try {<a name="line.1100"></a> |
| <span class="sourceLineNo">1101</span> return mkdirs(fs, conf, dir);<a name="line.1101"></a> |
| <span class="sourceLineNo">1102</span> } catch (IOException ioe) {<a name="line.1102"></a> |
| <span class="sourceLineNo">1103</span> lastIOE = ioe;<a name="line.1103"></a> |
| <span class="sourceLineNo">1104</span> if (fs.exists(dir)) return true; // directory is present<a name="line.1104"></a> |
| <span class="sourceLineNo">1105</span> try {<a name="line.1105"></a> |
| <span class="sourceLineNo">1106</span> sleepBeforeRetry("Create Directory", i+1);<a name="line.1106"></a> |
| <span class="sourceLineNo">1107</span> } catch (InterruptedException e) {<a name="line.1107"></a> |
| <span class="sourceLineNo">1108</span> throw (InterruptedIOException)new InterruptedIOException().initCause(e);<a name="line.1108"></a> |
| <span class="sourceLineNo">1109</span> }<a name="line.1109"></a> |
| <span class="sourceLineNo">1110</span> }<a name="line.1110"></a> |
| <span class="sourceLineNo">1111</span> } while (++i <= hdfsClientRetriesNumber);<a name="line.1111"></a> |
| <span class="sourceLineNo">1112</span> throw new IOException("Exception in createDir", lastIOE);<a name="line.1112"></a> |
| <span class="sourceLineNo">1113</span> }<a name="line.1113"></a> |
| <span class="sourceLineNo">1114</span><a name="line.1114"></a> |
| <span class="sourceLineNo">1115</span> /**<a name="line.1115"></a> |
| <span class="sourceLineNo">1116</span> * Renames a directory. Assumes the user has already checked for this directory existence.<a name="line.1116"></a> |
| <span class="sourceLineNo">1117</span> * @param srcpath<a name="line.1117"></a> |
| <span class="sourceLineNo">1118</span> * @param dstPath<a name="line.1118"></a> |
| <span class="sourceLineNo">1119</span> * @return true if rename is successful.<a name="line.1119"></a> |
| <span class="sourceLineNo">1120</span> * @throws IOException<a name="line.1120"></a> |
| <span class="sourceLineNo">1121</span> */<a name="line.1121"></a> |
| <span class="sourceLineNo">1122</span> boolean rename(Path srcpath, Path dstPath) throws IOException {<a name="line.1122"></a> |
| <span class="sourceLineNo">1123</span> IOException lastIOE = null;<a name="line.1123"></a> |
| <span class="sourceLineNo">1124</span> int i = 0;<a name="line.1124"></a> |
| <span class="sourceLineNo">1125</span> do {<a name="line.1125"></a> |
| <span class="sourceLineNo">1126</span> try {<a name="line.1126"></a> |
| <span class="sourceLineNo">1127</span> return fs.rename(srcpath, dstPath);<a name="line.1127"></a> |
| <span class="sourceLineNo">1128</span> } catch (IOException ioe) {<a name="line.1128"></a> |
| <span class="sourceLineNo">1129</span> lastIOE = ioe;<a name="line.1129"></a> |
| <span class="sourceLineNo">1130</span> if (!fs.exists(srcpath) && fs.exists(dstPath)) return true; // successful move<a name="line.1130"></a> |
| <span class="sourceLineNo">1131</span> // dir is not there, retry after some time.<a name="line.1131"></a> |
| <span class="sourceLineNo">1132</span> try {<a name="line.1132"></a> |
| <span class="sourceLineNo">1133</span> sleepBeforeRetry("Rename Directory", i+1);<a name="line.1133"></a> |
| <span class="sourceLineNo">1134</span> } catch (InterruptedException e) {<a name="line.1134"></a> |
| <span class="sourceLineNo">1135</span> throw (InterruptedIOException)new InterruptedIOException().initCause(e);<a name="line.1135"></a> |
| <span class="sourceLineNo">1136</span> }<a name="line.1136"></a> |
| <span class="sourceLineNo">1137</span> }<a name="line.1137"></a> |
| <span class="sourceLineNo">1138</span> } while (++i <= hdfsClientRetriesNumber);<a name="line.1138"></a> |
| <span class="sourceLineNo">1139</span><a name="line.1139"></a> |
| <span class="sourceLineNo">1140</span> throw new IOException("Exception in rename", lastIOE);<a name="line.1140"></a> |
| <span class="sourceLineNo">1141</span> }<a name="line.1141"></a> |
| <span class="sourceLineNo">1142</span><a name="line.1142"></a> |
| <span class="sourceLineNo">1143</span> /**<a name="line.1143"></a> |
| <span class="sourceLineNo">1144</span> * Deletes a directory. Assumes the user has already checked for this directory existence.<a name="line.1144"></a> |
| <span class="sourceLineNo">1145</span> * @param dir<a name="line.1145"></a> |
| <span class="sourceLineNo">1146</span> * @return true if the directory is deleted.<a name="line.1146"></a> |
| <span class="sourceLineNo">1147</span> * @throws IOException<a name="line.1147"></a> |
| <span class="sourceLineNo">1148</span> */<a name="line.1148"></a> |
| <span class="sourceLineNo">1149</span> boolean deleteDir(Path dir) throws IOException {<a name="line.1149"></a> |
| <span class="sourceLineNo">1150</span> IOException lastIOE = null;<a name="line.1150"></a> |
| <span class="sourceLineNo">1151</span> int i = 0;<a name="line.1151"></a> |
| <span class="sourceLineNo">1152</span> do {<a name="line.1152"></a> |
| <span class="sourceLineNo">1153</span> try {<a name="line.1153"></a> |
| <span class="sourceLineNo">1154</span> return fs.delete(dir, true);<a name="line.1154"></a> |
| <span class="sourceLineNo">1155</span> } catch (IOException ioe) {<a name="line.1155"></a> |
| <span class="sourceLineNo">1156</span> lastIOE = ioe;<a name="line.1156"></a> |
| <span class="sourceLineNo">1157</span> if (!fs.exists(dir)) return true;<a name="line.1157"></a> |
| <span class="sourceLineNo">1158</span> // dir is there, retry deleting after some time.<a name="line.1158"></a> |
| <span class="sourceLineNo">1159</span> try {<a name="line.1159"></a> |
| <span class="sourceLineNo">1160</span> sleepBeforeRetry("Delete Directory", i+1);<a name="line.1160"></a> |
| <span class="sourceLineNo">1161</span> } catch (InterruptedException e) {<a name="line.1161"></a> |
| <span class="sourceLineNo">1162</span> throw (InterruptedIOException)new InterruptedIOException().initCause(e);<a name="line.1162"></a> |
| <span class="sourceLineNo">1163</span> }<a name="line.1163"></a> |
| <span class="sourceLineNo">1164</span> }<a name="line.1164"></a> |
| <span class="sourceLineNo">1165</span> } while (++i <= hdfsClientRetriesNumber);<a name="line.1165"></a> |
| <span class="sourceLineNo">1166</span><a name="line.1166"></a> |
| <span class="sourceLineNo">1167</span> throw new IOException("Exception in DeleteDir", lastIOE);<a name="line.1167"></a> |
| <span class="sourceLineNo">1168</span> }<a name="line.1168"></a> |
| <span class="sourceLineNo">1169</span><a name="line.1169"></a> |
| <span class="sourceLineNo">1170</span> /**<a name="line.1170"></a> |
| <span class="sourceLineNo">1171</span> * sleeping logic; handles the interrupt exception.<a name="line.1171"></a> |
| <span class="sourceLineNo">1172</span> */<a name="line.1172"></a> |
| <span class="sourceLineNo">1173</span> private void sleepBeforeRetry(String msg, int sleepMultiplier) throws InterruptedException {<a name="line.1173"></a> |
| <span class="sourceLineNo">1174</span> sleepBeforeRetry(msg, sleepMultiplier, baseSleepBeforeRetries, hdfsClientRetriesNumber);<a name="line.1174"></a> |
| <span class="sourceLineNo">1175</span> }<a name="line.1175"></a> |
| <span class="sourceLineNo">1176</span><a name="line.1176"></a> |
| <span class="sourceLineNo">1177</span> /**<a name="line.1177"></a> |
| <span class="sourceLineNo">1178</span> * Creates a directory for a filesystem and configuration object. Assumes the user has already<a name="line.1178"></a> |
| <span class="sourceLineNo">1179</span> * checked for this directory existence.<a name="line.1179"></a> |
| <span class="sourceLineNo">1180</span> * @param fs<a name="line.1180"></a> |
| <span class="sourceLineNo">1181</span> * @param conf<a name="line.1181"></a> |
| <span class="sourceLineNo">1182</span> * @param dir<a name="line.1182"></a> |
| <span class="sourceLineNo">1183</span> * @return the result of fs.mkdirs(). In case underlying fs throws an IOException, it checks<a name="line.1183"></a> |
| <span class="sourceLineNo">1184</span> * whether the directory exists or not, and returns true if it exists.<a name="line.1184"></a> |
| <span class="sourceLineNo">1185</span> * @throws IOException<a name="line.1185"></a> |
| <span class="sourceLineNo">1186</span> */<a name="line.1186"></a> |
| <span class="sourceLineNo">1187</span> private static boolean createDirOnFileSystem(FileSystem fs, Configuration conf, Path dir)<a name="line.1187"></a> |
| <span class="sourceLineNo">1188</span> throws IOException {<a name="line.1188"></a> |
| <span class="sourceLineNo">1189</span> int i = 0;<a name="line.1189"></a> |
| <span class="sourceLineNo">1190</span> IOException lastIOE = null;<a name="line.1190"></a> |
| <span class="sourceLineNo">1191</span> int hdfsClientRetriesNumber = conf.getInt("hdfs.client.retries.number",<a name="line.1191"></a> |
| <span class="sourceLineNo">1192</span> DEFAULT_HDFS_CLIENT_RETRIES_NUMBER);<a name="line.1192"></a> |
| <span class="sourceLineNo">1193</span> int baseSleepBeforeRetries = conf.getInt("hdfs.client.sleep.before.retries",<a name="line.1193"></a> |
| <span class="sourceLineNo">1194</span> DEFAULT_BASE_SLEEP_BEFORE_RETRIES);<a name="line.1194"></a> |
| <span class="sourceLineNo">1195</span> do {<a name="line.1195"></a> |
| <span class="sourceLineNo">1196</span> try {<a name="line.1196"></a> |
| <span class="sourceLineNo">1197</span> return fs.mkdirs(dir);<a name="line.1197"></a> |
| <span class="sourceLineNo">1198</span> } catch (IOException ioe) {<a name="line.1198"></a> |
| <span class="sourceLineNo">1199</span> lastIOE = ioe;<a name="line.1199"></a> |
| <span class="sourceLineNo">1200</span> if (fs.exists(dir)) return true; // directory is present<a name="line.1200"></a> |
| <span class="sourceLineNo">1201</span> try {<a name="line.1201"></a> |
| <span class="sourceLineNo">1202</span> sleepBeforeRetry("Create Directory", i+1, baseSleepBeforeRetries, hdfsClientRetriesNumber);<a name="line.1202"></a> |
| <span class="sourceLineNo">1203</span> } catch (InterruptedException e) {<a name="line.1203"></a> |
| <span class="sourceLineNo">1204</span> throw (InterruptedIOException)new InterruptedIOException().initCause(e);<a name="line.1204"></a> |
| <span class="sourceLineNo">1205</span> }<a name="line.1205"></a> |
| <span class="sourceLineNo">1206</span> }<a name="line.1206"></a> |
| <span class="sourceLineNo">1207</span> } while (++i <= hdfsClientRetriesNumber);<a name="line.1207"></a> |
| <span class="sourceLineNo">1208</span><a name="line.1208"></a> |
| <span class="sourceLineNo">1209</span> throw new IOException("Exception in createDir", lastIOE);<a name="line.1209"></a> |
| <span class="sourceLineNo">1210</span> }<a name="line.1210"></a> |
| <span class="sourceLineNo">1211</span><a name="line.1211"></a> |
| <span class="sourceLineNo">1212</span> /**<a name="line.1212"></a> |
| <span class="sourceLineNo">1213</span> * sleeping logic for static methods; handles the interrupt exception. Keeping a static version<a name="line.1213"></a> |
| <span class="sourceLineNo">1214</span> * for this to avoid re-looking for the integer values.<a name="line.1214"></a> |
| <span class="sourceLineNo">1215</span> */<a name="line.1215"></a> |
| <span class="sourceLineNo">1216</span> private static void sleepBeforeRetry(String msg, int sleepMultiplier, int baseSleepBeforeRetries,<a name="line.1216"></a> |
| <span class="sourceLineNo">1217</span> int hdfsClientRetriesNumber) throws InterruptedException {<a name="line.1217"></a> |
| <span class="sourceLineNo">1218</span> if (sleepMultiplier > hdfsClientRetriesNumber) {<a name="line.1218"></a> |
| <span class="sourceLineNo">1219</span> if (LOG.isDebugEnabled()) {<a name="line.1219"></a> |
| <span class="sourceLineNo">1220</span> LOG.debug(msg + ", retries exhausted");<a name="line.1220"></a> |
| <span class="sourceLineNo">1221</span> }<a name="line.1221"></a> |
| <span class="sourceLineNo">1222</span> return;<a name="line.1222"></a> |
| <span class="sourceLineNo">1223</span> }<a name="line.1223"></a> |
| <span class="sourceLineNo">1224</span> if (LOG.isDebugEnabled()) {<a name="line.1224"></a> |
| <span class="sourceLineNo">1225</span> LOG.debug(msg + ", sleeping " + baseSleepBeforeRetries + " times " + sleepMultiplier);<a name="line.1225"></a> |
| <span class="sourceLineNo">1226</span> }<a name="line.1226"></a> |
| <span class="sourceLineNo">1227</span> Thread.sleep((long)baseSleepBeforeRetries * sleepMultiplier);<a name="line.1227"></a> |
| <span class="sourceLineNo">1228</span> }<a name="line.1228"></a> |
| <span class="sourceLineNo">1229</span>}<a name="line.1229"></a> |
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| </div> |
| </body> |
| </html> |
