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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.util;<a name="line.18"></a> |
| <span class="sourceLineNo">019</span><a name="line.19"></a> |
| <span class="sourceLineNo">020</span>import com.google.errorprone.annotations.RestrictedApi;<a name="line.20"></a> |
| <span class="sourceLineNo">021</span>import edu.umd.cs.findbugs.annotations.Nullable;<a name="line.21"></a> |
| <span class="sourceLineNo">022</span>import java.io.EOFException;<a name="line.22"></a> |
| <span class="sourceLineNo">023</span>import java.io.IOException;<a name="line.23"></a> |
| <span class="sourceLineNo">024</span>import java.io.InterruptedIOException;<a name="line.24"></a> |
| <span class="sourceLineNo">025</span>import java.util.Arrays;<a name="line.25"></a> |
| <span class="sourceLineNo">026</span>import java.util.Comparator;<a name="line.26"></a> |
| <span class="sourceLineNo">027</span>import java.util.List;<a name="line.27"></a> |
| <span class="sourceLineNo">028</span>import java.util.Map;<a name="line.28"></a> |
| <span class="sourceLineNo">029</span>import java.util.Optional;<a name="line.29"></a> |
| <span class="sourceLineNo">030</span>import java.util.TreeMap;<a name="line.30"></a> |
| <span class="sourceLineNo">031</span>import java.util.concurrent.ConcurrentHashMap;<a name="line.31"></a> |
| <span class="sourceLineNo">032</span>import java.util.concurrent.ConcurrentSkipListMap;<a name="line.32"></a> |
| <span class="sourceLineNo">033</span>import java.util.concurrent.CountDownLatch;<a name="line.33"></a> |
| <span class="sourceLineNo">034</span>import java.util.concurrent.LinkedBlockingQueue;<a name="line.34"></a> |
| <span class="sourceLineNo">035</span>import java.util.concurrent.ThreadPoolExecutor;<a name="line.35"></a> |
| <span class="sourceLineNo">036</span>import java.util.concurrent.TimeUnit;<a name="line.36"></a> |
| <span class="sourceLineNo">037</span>import java.util.concurrent.atomic.AtomicBoolean;<a name="line.37"></a> |
| <span class="sourceLineNo">038</span>import org.apache.commons.lang3.NotImplementedException;<a name="line.38"></a> |
| <span class="sourceLineNo">039</span>import org.apache.hadoop.conf.Configuration;<a name="line.39"></a> |
| <span class="sourceLineNo">040</span>import org.apache.hadoop.fs.FSDataInputStream;<a name="line.40"></a> |
| <span class="sourceLineNo">041</span>import org.apache.hadoop.fs.FSDataOutputStream;<a name="line.41"></a> |
| <span class="sourceLineNo">042</span>import org.apache.hadoop.fs.FileAlreadyExistsException;<a name="line.42"></a> |
| <span class="sourceLineNo">043</span>import org.apache.hadoop.fs.FileStatus;<a name="line.43"></a> |
| <span class="sourceLineNo">044</span>import org.apache.hadoop.fs.FileSystem;<a name="line.44"></a> |
| <span class="sourceLineNo">045</span>import org.apache.hadoop.fs.Path;<a name="line.45"></a> |
| <span class="sourceLineNo">046</span>import org.apache.hadoop.fs.PathFilter;<a name="line.46"></a> |
| <span class="sourceLineNo">047</span>import org.apache.hadoop.hbase.Coprocessor;<a name="line.47"></a> |
| <span class="sourceLineNo">048</span>import org.apache.hadoop.hbase.HConstants;<a name="line.48"></a> |
| <span class="sourceLineNo">049</span>import org.apache.hadoop.hbase.TableDescriptors;<a name="line.49"></a> |
| <span class="sourceLineNo">050</span>import org.apache.hadoop.hbase.TableName;<a name="line.50"></a> |
| <span class="sourceLineNo">051</span>import org.apache.hadoop.hbase.client.ColumnFamilyDescriptor;<a name="line.51"></a> |
| <span class="sourceLineNo">052</span>import org.apache.hadoop.hbase.client.ColumnFamilyDescriptorBuilder;<a name="line.52"></a> |
| <span class="sourceLineNo">053</span>import org.apache.hadoop.hbase.client.CoprocessorDescriptorBuilder;<a name="line.53"></a> |
| <span class="sourceLineNo">054</span>import org.apache.hadoop.hbase.client.TableDescriptor;<a name="line.54"></a> |
| <span class="sourceLineNo">055</span>import org.apache.hadoop.hbase.client.TableDescriptorBuilder;<a name="line.55"></a> |
| <span class="sourceLineNo">056</span>import org.apache.hadoop.hbase.coprocessor.MultiRowMutationEndpoint;<a name="line.56"></a> |
| <span class="sourceLineNo">057</span>import org.apache.hadoop.hbase.exceptions.DeserializationException;<a name="line.57"></a> |
| <span class="sourceLineNo">058</span>import org.apache.hadoop.hbase.regionserver.BloomType;<a name="line.58"></a> |
| <span class="sourceLineNo">059</span>import org.apache.hadoop.hbase.regionserver.storefiletracker.StoreFileTrackerFactory;<a name="line.59"></a> |
| <span class="sourceLineNo">060</span>import org.apache.yetus.audience.InterfaceAudience;<a name="line.60"></a> |
| <span class="sourceLineNo">061</span>import org.slf4j.Logger;<a name="line.61"></a> |
| <span class="sourceLineNo">062</span>import org.slf4j.LoggerFactory;<a name="line.62"></a> |
| <span class="sourceLineNo">063</span><a name="line.63"></a> |
| <span class="sourceLineNo">064</span>import org.apache.hbase.thirdparty.com.google.common.primitives.Ints;<a name="line.64"></a> |
| <span class="sourceLineNo">065</span>import org.apache.hbase.thirdparty.com.google.common.util.concurrent.ThreadFactoryBuilder;<a name="line.65"></a> |
| <span class="sourceLineNo">066</span><a name="line.66"></a> |
| <span class="sourceLineNo">067</span>/**<a name="line.67"></a> |
| <span class="sourceLineNo">068</span> * Implementation of {@link TableDescriptors} that reads descriptors from the passed filesystem. It<a name="line.68"></a> |
| <span class="sourceLineNo">069</span> * expects descriptors to be in a file in the {@link #TABLEINFO_DIR} subdir of the table's directory<a name="line.69"></a> |
| <span class="sourceLineNo">070</span> * in FS. Can be read-only -- i.e. does not modify the filesystem or can be read and write.<a name="line.70"></a> |
| <span class="sourceLineNo">071</span> * <p><a name="line.71"></a> |
| <span class="sourceLineNo">072</span> * Also has utility for keeping up the table descriptors tableinfo file. The table schema file is<a name="line.72"></a> |
| <span class="sourceLineNo">073</span> * kept in the {@link #TABLEINFO_DIR} subdir of the table directory in the filesystem. It has a<a name="line.73"></a> |
| <span class="sourceLineNo">074</span> * {@link #TABLEINFO_FILE_PREFIX} and then a suffix that is the edit sequenceid: e.g.<a name="line.74"></a> |
| <span class="sourceLineNo">075</span> * <code>.tableinfo.0000000003</code>. This sequenceid is always increasing. It starts at zero. The<a name="line.75"></a> |
| <span class="sourceLineNo">076</span> * table schema file with the highest sequenceid has the most recent schema edit. Usually there is<a name="line.76"></a> |
| <span class="sourceLineNo">077</span> * one file only, the most recent but there may be short periods where there are more than one file.<a name="line.77"></a> |
| <span class="sourceLineNo">078</span> * Old files are eventually cleaned. Presumption is that there will not be lots of concurrent<a name="line.78"></a> |
| <span class="sourceLineNo">079</span> * clients making table schema edits. If so, the below needs a bit of a reworking and perhaps some<a name="line.79"></a> |
| <span class="sourceLineNo">080</span> * supporting api in hdfs.<a name="line.80"></a> |
| <span class="sourceLineNo">081</span> */<a name="line.81"></a> |
| <span class="sourceLineNo">082</span>@InterfaceAudience.Private<a name="line.82"></a> |
| <span class="sourceLineNo">083</span>public class FSTableDescriptors implements TableDescriptors {<a name="line.83"></a> |
| <span class="sourceLineNo">084</span> private static final Logger LOG = LoggerFactory.getLogger(FSTableDescriptors.class);<a name="line.84"></a> |
| <span class="sourceLineNo">085</span> private final FileSystem fs;<a name="line.85"></a> |
| <span class="sourceLineNo">086</span> private final Path rootdir;<a name="line.86"></a> |
| <span class="sourceLineNo">087</span> private final boolean fsreadonly;<a name="line.87"></a> |
| <span class="sourceLineNo">088</span> private final boolean usecache;<a name="line.88"></a> |
| <span class="sourceLineNo">089</span> private volatile boolean fsvisited;<a name="line.89"></a> |
| <span class="sourceLineNo">090</span> private boolean tableDescriptorParallelLoadEnable = false;<a name="line.90"></a> |
| <span class="sourceLineNo">091</span> private ThreadPoolExecutor executor;<a name="line.91"></a> |
| <span class="sourceLineNo">092</span><a name="line.92"></a> |
| <span class="sourceLineNo">093</span> long cachehits = 0;<a name="line.93"></a> |
| <span class="sourceLineNo">094</span> long invocations = 0;<a name="line.94"></a> |
| <span class="sourceLineNo">095</span><a name="line.95"></a> |
| <span class="sourceLineNo">096</span> /**<a name="line.96"></a> |
| <span class="sourceLineNo">097</span> * The file name prefix used to store HTD in HDFS<a name="line.97"></a> |
| <span class="sourceLineNo">098</span> */<a name="line.98"></a> |
| <span class="sourceLineNo">099</span> static final String TABLEINFO_FILE_PREFIX = ".tableinfo";<a name="line.99"></a> |
| <span class="sourceLineNo">100</span> public static final String TABLEINFO_DIR = ".tabledesc";<a name="line.100"></a> |
| <span class="sourceLineNo">101</span><a name="line.101"></a> |
| <span class="sourceLineNo">102</span> // This cache does not age out the old stuff. Thinking is that the amount<a name="line.102"></a> |
| <span class="sourceLineNo">103</span> // of data we keep up in here is so small, no need to do occasional purge.<a name="line.103"></a> |
| <span class="sourceLineNo">104</span> // TODO.<a name="line.104"></a> |
| <span class="sourceLineNo">105</span> private final Map<TableName, TableDescriptor> cache = new ConcurrentHashMap<>();<a name="line.105"></a> |
| <span class="sourceLineNo">106</span><a name="line.106"></a> |
| <span class="sourceLineNo">107</span> /**<a name="line.107"></a> |
| <span class="sourceLineNo">108</span> * Construct a FSTableDescriptors instance using the hbase root dir of the given conf and the<a name="line.108"></a> |
| <span class="sourceLineNo">109</span> * filesystem where that root dir lives. This instance can do write operations (is not read only).<a name="line.109"></a> |
| <span class="sourceLineNo">110</span> */<a name="line.110"></a> |
| <span class="sourceLineNo">111</span> public FSTableDescriptors(final Configuration conf) throws IOException {<a name="line.111"></a> |
| <span class="sourceLineNo">112</span> this(CommonFSUtils.getCurrentFileSystem(conf), CommonFSUtils.getRootDir(conf));<a name="line.112"></a> |
| <span class="sourceLineNo">113</span> }<a name="line.113"></a> |
| <span class="sourceLineNo">114</span><a name="line.114"></a> |
| <span class="sourceLineNo">115</span> public FSTableDescriptors(final FileSystem fs, final Path rootdir) {<a name="line.115"></a> |
| <span class="sourceLineNo">116</span> this(fs, rootdir, false, true);<a name="line.116"></a> |
| <span class="sourceLineNo">117</span> }<a name="line.117"></a> |
| <span class="sourceLineNo">118</span><a name="line.118"></a> |
| <span class="sourceLineNo">119</span> public FSTableDescriptors(final FileSystem fs, final Path rootdir, final boolean fsreadonly,<a name="line.119"></a> |
| <span class="sourceLineNo">120</span> final boolean usecache) {<a name="line.120"></a> |
| <span class="sourceLineNo">121</span> this(fs, rootdir, fsreadonly, usecache, 0);<a name="line.121"></a> |
| <span class="sourceLineNo">122</span> }<a name="line.122"></a> |
| <span class="sourceLineNo">123</span><a name="line.123"></a> |
| <span class="sourceLineNo">124</span> public FSTableDescriptors(final FileSystem fs, final Path rootdir, final boolean fsreadonly,<a name="line.124"></a> |
| <span class="sourceLineNo">125</span> final boolean usecache, final int tableDescriptorParallelLoadThreads) {<a name="line.125"></a> |
| <span class="sourceLineNo">126</span> this.fs = fs;<a name="line.126"></a> |
| <span class="sourceLineNo">127</span> this.rootdir = rootdir;<a name="line.127"></a> |
| <span class="sourceLineNo">128</span> this.fsreadonly = fsreadonly;<a name="line.128"></a> |
| <span class="sourceLineNo">129</span> this.usecache = usecache;<a name="line.129"></a> |
| <span class="sourceLineNo">130</span> if (tableDescriptorParallelLoadThreads > 0) {<a name="line.130"></a> |
| <span class="sourceLineNo">131</span> tableDescriptorParallelLoadEnable = true;<a name="line.131"></a> |
| <span class="sourceLineNo">132</span> executor = new ThreadPoolExecutor(tableDescriptorParallelLoadThreads,<a name="line.132"></a> |
| <span class="sourceLineNo">133</span> tableDescriptorParallelLoadThreads, 1, TimeUnit.SECONDS, new LinkedBlockingQueue<>(),<a name="line.133"></a> |
| <span class="sourceLineNo">134</span> new ThreadFactoryBuilder().setNameFormat("FSTableDescriptorLoad-pool-%d").setDaemon(true)<a name="line.134"></a> |
| <span class="sourceLineNo">135</span> .setUncaughtExceptionHandler(Threads.LOGGING_EXCEPTION_HANDLER).build());<a name="line.135"></a> |
| <span class="sourceLineNo">136</span> executor.allowCoreThreadTimeOut(true);<a name="line.136"></a> |
| <span class="sourceLineNo">137</span> }<a name="line.137"></a> |
| <span class="sourceLineNo">138</span> }<a name="line.138"></a> |
| <span class="sourceLineNo">139</span><a name="line.139"></a> |
| <span class="sourceLineNo">140</span> public static void tryUpdateMetaTableDescriptor(Configuration conf) throws IOException {<a name="line.140"></a> |
| <span class="sourceLineNo">141</span> tryUpdateAndGetMetaTableDescriptor(conf, CommonFSUtils.getCurrentFileSystem(conf),<a name="line.141"></a> |
| <span class="sourceLineNo">142</span> CommonFSUtils.getRootDir(conf));<a name="line.142"></a> |
| <span class="sourceLineNo">143</span> }<a name="line.143"></a> |
| <span class="sourceLineNo">144</span><a name="line.144"></a> |
| <span class="sourceLineNo">145</span> public static TableDescriptor tryUpdateAndGetMetaTableDescriptor(Configuration conf,<a name="line.145"></a> |
| <span class="sourceLineNo">146</span> FileSystem fs, Path rootdir) throws IOException {<a name="line.146"></a> |
| <span class="sourceLineNo">147</span> // see if we already have meta descriptor on fs. Write one if not.<a name="line.147"></a> |
| <span class="sourceLineNo">148</span> Optional<Pair<FileStatus, TableDescriptor>> opt = getTableDescriptorFromFs(fs,<a name="line.148"></a> |
| <span class="sourceLineNo">149</span> CommonFSUtils.getTableDir(rootdir, TableName.META_TABLE_NAME), false);<a name="line.149"></a> |
| <span class="sourceLineNo">150</span> if (opt.isPresent()) {<a name="line.150"></a> |
| <span class="sourceLineNo">151</span> return opt.get().getSecond();<a name="line.151"></a> |
| <span class="sourceLineNo">152</span> }<a name="line.152"></a> |
| <span class="sourceLineNo">153</span> TableDescriptorBuilder builder = createMetaTableDescriptorBuilder(conf);<a name="line.153"></a> |
| <span class="sourceLineNo">154</span> TableDescriptor td = StoreFileTrackerFactory.updateWithTrackerConfigs(conf, builder.build());<a name="line.154"></a> |
| <span class="sourceLineNo">155</span> LOG.info("Creating new hbase:meta table descriptor {}", td);<a name="line.155"></a> |
| <span class="sourceLineNo">156</span> TableName tableName = td.getTableName();<a name="line.156"></a> |
| <span class="sourceLineNo">157</span> Path tableDir = CommonFSUtils.getTableDir(rootdir, tableName);<a name="line.157"></a> |
| <span class="sourceLineNo">158</span> Path p = writeTableDescriptor(fs, td, tableDir, null);<a name="line.158"></a> |
| <span class="sourceLineNo">159</span> if (p == null) {<a name="line.159"></a> |
| <span class="sourceLineNo">160</span> throw new IOException("Failed update hbase:meta table descriptor");<a name="line.160"></a> |
| <span class="sourceLineNo">161</span> }<a name="line.161"></a> |
| <span class="sourceLineNo">162</span> LOG.info("Updated hbase:meta table descriptor to {}", p);<a name="line.162"></a> |
| <span class="sourceLineNo">163</span> return td;<a name="line.163"></a> |
| <span class="sourceLineNo">164</span> }<a name="line.164"></a> |
| <span class="sourceLineNo">165</span><a name="line.165"></a> |
| <span class="sourceLineNo">166</span> public static ColumnFamilyDescriptor getTableFamilyDescForMeta(final Configuration conf) {<a name="line.166"></a> |
| <span class="sourceLineNo">167</span> return ColumnFamilyDescriptorBuilder.newBuilder(HConstants.TABLE_FAMILY)<a name="line.167"></a> |
| <span class="sourceLineNo">168</span> .setMaxVersions(<a name="line.168"></a> |
| <span class="sourceLineNo">169</span> conf.getInt(HConstants.HBASE_META_VERSIONS, HConstants.DEFAULT_HBASE_META_VERSIONS))<a name="line.169"></a> |
| <span class="sourceLineNo">170</span> .setInMemory(true).setBlocksize(8 * 1024).setScope(HConstants.REPLICATION_SCOPE_LOCAL)<a name="line.170"></a> |
| <span class="sourceLineNo">171</span> .setDataBlockEncoding(org.apache.hadoop.hbase.io.encoding.DataBlockEncoding.ROW_INDEX_V1)<a name="line.171"></a> |
| <span class="sourceLineNo">172</span> .setBloomFilterType(BloomType.ROWCOL).build();<a name="line.172"></a> |
| <span class="sourceLineNo">173</span> }<a name="line.173"></a> |
| <span class="sourceLineNo">174</span><a name="line.174"></a> |
| <span class="sourceLineNo">175</span> public static ColumnFamilyDescriptor getReplBarrierFamilyDescForMeta() {<a name="line.175"></a> |
| <span class="sourceLineNo">176</span> return ColumnFamilyDescriptorBuilder.newBuilder(HConstants.REPLICATION_BARRIER_FAMILY)<a name="line.176"></a> |
| <span class="sourceLineNo">177</span> .setMaxVersions(HConstants.ALL_VERSIONS).setInMemory(true)<a name="line.177"></a> |
| <span class="sourceLineNo">178</span> .setScope(HConstants.REPLICATION_SCOPE_LOCAL)<a name="line.178"></a> |
| <span class="sourceLineNo">179</span> .setDataBlockEncoding(org.apache.hadoop.hbase.io.encoding.DataBlockEncoding.ROW_INDEX_V1)<a name="line.179"></a> |
| <span class="sourceLineNo">180</span> .setBloomFilterType(BloomType.ROWCOL).build();<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> private static TableDescriptorBuilder createMetaTableDescriptorBuilder(final Configuration conf)<a name="line.183"></a> |
| <span class="sourceLineNo">184</span> throws IOException {<a name="line.184"></a> |
| <span class="sourceLineNo">185</span> // TODO We used to set CacheDataInL1 for META table. When we have BucketCache in file mode, now<a name="line.185"></a> |
| <span class="sourceLineNo">186</span> // the META table data goes to File mode BC only. Test how that affect the system. If too much,<a name="line.186"></a> |
| <span class="sourceLineNo">187</span> // we have to rethink about adding back the setCacheDataInL1 for META table CFs.<a name="line.187"></a> |
| <span class="sourceLineNo">188</span> return TableDescriptorBuilder.newBuilder(TableName.META_TABLE_NAME)<a name="line.188"></a> |
| <span class="sourceLineNo">189</span> .setColumnFamily(ColumnFamilyDescriptorBuilder.newBuilder(HConstants.CATALOG_FAMILY)<a name="line.189"></a> |
| <span class="sourceLineNo">190</span> .setMaxVersions(<a name="line.190"></a> |
| <span class="sourceLineNo">191</span> conf.getInt(HConstants.HBASE_META_VERSIONS, HConstants.DEFAULT_HBASE_META_VERSIONS))<a name="line.191"></a> |
| <span class="sourceLineNo">192</span> .setInMemory(true)<a name="line.192"></a> |
| <span class="sourceLineNo">193</span> .setBlocksize(<a name="line.193"></a> |
| <span class="sourceLineNo">194</span> conf.getInt(HConstants.HBASE_META_BLOCK_SIZE, HConstants.DEFAULT_HBASE_META_BLOCK_SIZE))<a name="line.194"></a> |
| <span class="sourceLineNo">195</span> .setScope(HConstants.REPLICATION_SCOPE_LOCAL).setBloomFilterType(BloomType.ROWCOL)<a name="line.195"></a> |
| <span class="sourceLineNo">196</span> .setDataBlockEncoding(org.apache.hadoop.hbase.io.encoding.DataBlockEncoding.ROW_INDEX_V1)<a name="line.196"></a> |
| <span class="sourceLineNo">197</span> .build())<a name="line.197"></a> |
| <span class="sourceLineNo">198</span> .setColumnFamily(getTableFamilyDescForMeta(conf))<a name="line.198"></a> |
| <span class="sourceLineNo">199</span> .setColumnFamily(getReplBarrierFamilyDescForMeta())<a name="line.199"></a> |
| <span class="sourceLineNo">200</span> .setColumnFamily(ColumnFamilyDescriptorBuilder.newBuilder(HConstants.NAMESPACE_FAMILY)<a name="line.200"></a> |
| <span class="sourceLineNo">201</span> .setMaxVersions(<a name="line.201"></a> |
| <span class="sourceLineNo">202</span> conf.getInt(HConstants.HBASE_META_VERSIONS, HConstants.DEFAULT_HBASE_META_VERSIONS))<a name="line.202"></a> |
| <span class="sourceLineNo">203</span> .setInMemory(true)<a name="line.203"></a> |
| <span class="sourceLineNo">204</span> .setBlocksize(<a name="line.204"></a> |
| <span class="sourceLineNo">205</span> conf.getInt(HConstants.HBASE_META_BLOCK_SIZE, HConstants.DEFAULT_HBASE_META_BLOCK_SIZE))<a name="line.205"></a> |
| <span class="sourceLineNo">206</span> .setScope(HConstants.REPLICATION_SCOPE_LOCAL)<a name="line.206"></a> |
| <span class="sourceLineNo">207</span> .setDataBlockEncoding(org.apache.hadoop.hbase.io.encoding.DataBlockEncoding.ROW_INDEX_V1)<a name="line.207"></a> |
| <span class="sourceLineNo">208</span> .setBloomFilterType(BloomType.ROWCOL).build())<a name="line.208"></a> |
| <span class="sourceLineNo">209</span> .setCoprocessor(<a name="line.209"></a> |
| <span class="sourceLineNo">210</span> CoprocessorDescriptorBuilder.newBuilder(MultiRowMutationEndpoint.class.getName())<a name="line.210"></a> |
| <span class="sourceLineNo">211</span> .setPriority(Coprocessor.PRIORITY_SYSTEM).build());<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> protected boolean isUsecache() {<a name="line.214"></a> |
| <span class="sourceLineNo">215</span> return this.usecache;<a name="line.215"></a> |
| <span class="sourceLineNo">216</span> }<a name="line.216"></a> |
| <span class="sourceLineNo">217</span><a name="line.217"></a> |
| <span class="sourceLineNo">218</span> /**<a name="line.218"></a> |
| <span class="sourceLineNo">219</span> * Get the current table descriptor for the given table, or null if none exists.<a name="line.219"></a> |
| <span class="sourceLineNo">220</span> * <p/><a name="line.220"></a> |
| <span class="sourceLineNo">221</span> * Uses a local cache of the descriptor but still checks the filesystem on each call if<a name="line.221"></a> |
| <span class="sourceLineNo">222</span> * {@link #fsvisited} is not {@code true}, i.e, we haven't done a full scan yet, to see if a newer<a name="line.222"></a> |
| <span class="sourceLineNo">223</span> * file has been created since the cached one was read.<a name="line.223"></a> |
| <span class="sourceLineNo">224</span> */<a name="line.224"></a> |
| <span class="sourceLineNo">225</span> @Override<a name="line.225"></a> |
| <span class="sourceLineNo">226</span> @Nullable<a name="line.226"></a> |
| <span class="sourceLineNo">227</span> public TableDescriptor get(TableName tableName) {<a name="line.227"></a> |
| <span class="sourceLineNo">228</span> invocations++;<a name="line.228"></a> |
| <span class="sourceLineNo">229</span> if (usecache) {<a name="line.229"></a> |
| <span class="sourceLineNo">230</span> // Look in cache of descriptors.<a name="line.230"></a> |
| <span class="sourceLineNo">231</span> TableDescriptor cachedtdm = this.cache.get(tableName);<a name="line.231"></a> |
| <span class="sourceLineNo">232</span> if (cachedtdm != null) {<a name="line.232"></a> |
| <span class="sourceLineNo">233</span> cachehits++;<a name="line.233"></a> |
| <span class="sourceLineNo">234</span> return cachedtdm;<a name="line.234"></a> |
| <span class="sourceLineNo">235</span> }<a name="line.235"></a> |
| <span class="sourceLineNo">236</span> // we do not need to go to fs any more<a name="line.236"></a> |
| <span class="sourceLineNo">237</span> if (fsvisited) {<a name="line.237"></a> |
| <span class="sourceLineNo">238</span> return null;<a name="line.238"></a> |
| <span class="sourceLineNo">239</span> }<a name="line.239"></a> |
| <span class="sourceLineNo">240</span> }<a name="line.240"></a> |
| <span class="sourceLineNo">241</span> TableDescriptor tdmt = null;<a name="line.241"></a> |
| <span class="sourceLineNo">242</span> try {<a name="line.242"></a> |
| <span class="sourceLineNo">243</span> tdmt = getTableDescriptorFromFs(fs, getTableDir(tableName), fsreadonly).map(Pair::getSecond)<a name="line.243"></a> |
| <span class="sourceLineNo">244</span> .orElse(null);<a name="line.244"></a> |
| <span class="sourceLineNo">245</span> } catch (IOException ioe) {<a name="line.245"></a> |
| <span class="sourceLineNo">246</span> LOG.debug("Exception during readTableDecriptor. Current table name = " + tableName, ioe);<a name="line.246"></a> |
| <span class="sourceLineNo">247</span> }<a name="line.247"></a> |
| <span class="sourceLineNo">248</span> // last HTD written wins<a name="line.248"></a> |
| <span class="sourceLineNo">249</span> if (usecache && tdmt != null) {<a name="line.249"></a> |
| <span class="sourceLineNo">250</span> this.cache.put(tableName, tdmt);<a name="line.250"></a> |
| <span class="sourceLineNo">251</span> }<a name="line.251"></a> |
| <span class="sourceLineNo">252</span><a name="line.252"></a> |
| <span class="sourceLineNo">253</span> return tdmt;<a name="line.253"></a> |
| <span class="sourceLineNo">254</span> }<a name="line.254"></a> |
| <span class="sourceLineNo">255</span><a name="line.255"></a> |
| <span class="sourceLineNo">256</span> /**<a name="line.256"></a> |
| <span class="sourceLineNo">257</span> * Returns a map from table name to table descriptor for all tables.<a name="line.257"></a> |
| <span class="sourceLineNo">258</span> */<a name="line.258"></a> |
| <span class="sourceLineNo">259</span> @Override<a name="line.259"></a> |
| <span class="sourceLineNo">260</span> public Map<String, TableDescriptor> getAll() throws IOException {<a name="line.260"></a> |
| <span class="sourceLineNo">261</span> Map<String, TableDescriptor> tds = new ConcurrentSkipListMap<>();<a name="line.261"></a> |
| <span class="sourceLineNo">262</span> if (fsvisited) {<a name="line.262"></a> |
| <span class="sourceLineNo">263</span> for (Map.Entry<TableName, TableDescriptor> entry : this.cache.entrySet()) {<a name="line.263"></a> |
| <span class="sourceLineNo">264</span> tds.put(entry.getKey().getNameWithNamespaceInclAsString(), entry.getValue());<a name="line.264"></a> |
| <span class="sourceLineNo">265</span> }<a name="line.265"></a> |
| <span class="sourceLineNo">266</span> } else {<a name="line.266"></a> |
| <span class="sourceLineNo">267</span> LOG.info("Fetching table descriptors from the filesystem.");<a name="line.267"></a> |
| <span class="sourceLineNo">268</span> final long startTime = EnvironmentEdgeManager.currentTime();<a name="line.268"></a> |
| <span class="sourceLineNo">269</span> AtomicBoolean allvisited = new AtomicBoolean(usecache);<a name="line.269"></a> |
| <span class="sourceLineNo">270</span> List<Path> tableDirs = FSUtils.getTableDirs(fs, rootdir);<a name="line.270"></a> |
| <span class="sourceLineNo">271</span> if (!tableDescriptorParallelLoadEnable) {<a name="line.271"></a> |
| <span class="sourceLineNo">272</span> for (Path dir : tableDirs) {<a name="line.272"></a> |
| <span class="sourceLineNo">273</span> internalGet(dir, tds, allvisited);<a name="line.273"></a> |
| <span class="sourceLineNo">274</span> }<a name="line.274"></a> |
| <span class="sourceLineNo">275</span> } else {<a name="line.275"></a> |
| <span class="sourceLineNo">276</span> CountDownLatch latch = new CountDownLatch(tableDirs.size());<a name="line.276"></a> |
| <span class="sourceLineNo">277</span> for (Path dir : tableDirs) {<a name="line.277"></a> |
| <span class="sourceLineNo">278</span> executor.submit(new Runnable() {<a name="line.278"></a> |
| <span class="sourceLineNo">279</span> @Override<a name="line.279"></a> |
| <span class="sourceLineNo">280</span> public void run() {<a name="line.280"></a> |
| <span class="sourceLineNo">281</span> try {<a name="line.281"></a> |
| <span class="sourceLineNo">282</span> internalGet(dir, tds, allvisited);<a name="line.282"></a> |
| <span class="sourceLineNo">283</span> } finally {<a name="line.283"></a> |
| <span class="sourceLineNo">284</span> latch.countDown();<a name="line.284"></a> |
| <span class="sourceLineNo">285</span> }<a name="line.285"></a> |
| <span class="sourceLineNo">286</span> }<a name="line.286"></a> |
| <span class="sourceLineNo">287</span> });<a name="line.287"></a> |
| <span class="sourceLineNo">288</span> }<a name="line.288"></a> |
| <span class="sourceLineNo">289</span> try {<a name="line.289"></a> |
| <span class="sourceLineNo">290</span> latch.await();<a name="line.290"></a> |
| <span class="sourceLineNo">291</span> } catch (InterruptedException ie) {<a name="line.291"></a> |
| <span class="sourceLineNo">292</span> throw (InterruptedIOException) new InterruptedIOException().initCause(ie);<a name="line.292"></a> |
| <span class="sourceLineNo">293</span> }<a name="line.293"></a> |
| <span class="sourceLineNo">294</span> }<a name="line.294"></a> |
| <span class="sourceLineNo">295</span> fsvisited = allvisited.get();<a name="line.295"></a> |
| <span class="sourceLineNo">296</span> LOG.info("Fetched table descriptors(size=" + tds.size() + ") cost "<a name="line.296"></a> |
| <span class="sourceLineNo">297</span> + (EnvironmentEdgeManager.currentTime() - startTime) + "ms.");<a name="line.297"></a> |
| <span class="sourceLineNo">298</span> }<a name="line.298"></a> |
| <span class="sourceLineNo">299</span> return tds;<a name="line.299"></a> |
| <span class="sourceLineNo">300</span> }<a name="line.300"></a> |
| <span class="sourceLineNo">301</span><a name="line.301"></a> |
| <span class="sourceLineNo">302</span> private void internalGet(Path dir, Map<String, TableDescriptor> tds, AtomicBoolean allvisited) {<a name="line.302"></a> |
| <span class="sourceLineNo">303</span> TableDescriptor htd = get(CommonFSUtils.getTableName(dir));<a name="line.303"></a> |
| <span class="sourceLineNo">304</span> if (htd == null) {<a name="line.304"></a> |
| <span class="sourceLineNo">305</span> allvisited.set(false);<a name="line.305"></a> |
| <span class="sourceLineNo">306</span> } else {<a name="line.306"></a> |
| <span class="sourceLineNo">307</span> tds.put(htd.getTableName().getNameWithNamespaceInclAsString(), htd);<a name="line.307"></a> |
| <span class="sourceLineNo">308</span> }<a name="line.308"></a> |
| <span class="sourceLineNo">309</span> }<a name="line.309"></a> |
| <span class="sourceLineNo">310</span><a name="line.310"></a> |
| <span class="sourceLineNo">311</span> /**<a name="line.311"></a> |
| <span class="sourceLineNo">312</span> * Find descriptors by namespace.<a name="line.312"></a> |
| <span class="sourceLineNo">313</span> * @see #get(org.apache.hadoop.hbase.TableName)<a name="line.313"></a> |
| <span class="sourceLineNo">314</span> */<a name="line.314"></a> |
| <span class="sourceLineNo">315</span> @Override<a name="line.315"></a> |
| <span class="sourceLineNo">316</span> public Map<String, TableDescriptor> getByNamespace(String name) throws IOException {<a name="line.316"></a> |
| <span class="sourceLineNo">317</span> Map<String, TableDescriptor> htds = new TreeMap<>();<a name="line.317"></a> |
| <span class="sourceLineNo">318</span> List<Path> tableDirs =<a name="line.318"></a> |
| <span class="sourceLineNo">319</span> FSUtils.getLocalTableDirs(fs, CommonFSUtils.getNamespaceDir(rootdir, name));<a name="line.319"></a> |
| <span class="sourceLineNo">320</span> for (Path d : tableDirs) {<a name="line.320"></a> |
| <span class="sourceLineNo">321</span> TableDescriptor htd = get(CommonFSUtils.getTableName(d));<a name="line.321"></a> |
| <span class="sourceLineNo">322</span> if (htd == null) {<a name="line.322"></a> |
| <span class="sourceLineNo">323</span> continue;<a name="line.323"></a> |
| <span class="sourceLineNo">324</span> }<a name="line.324"></a> |
| <span class="sourceLineNo">325</span> htds.put(CommonFSUtils.getTableName(d).getNameAsString(), htd);<a name="line.325"></a> |
| <span class="sourceLineNo">326</span> }<a name="line.326"></a> |
| <span class="sourceLineNo">327</span> return htds;<a name="line.327"></a> |
| <span class="sourceLineNo">328</span> }<a name="line.328"></a> |
| <span class="sourceLineNo">329</span><a name="line.329"></a> |
| <span class="sourceLineNo">330</span> @Override<a name="line.330"></a> |
| <span class="sourceLineNo">331</span> public void update(TableDescriptor td, boolean cacheOnly) throws IOException {<a name="line.331"></a> |
| <span class="sourceLineNo">332</span> // TODO: in fact this method will only be called at master side, so fsreadonly and usecache will<a name="line.332"></a> |
| <span class="sourceLineNo">333</span> // always be true. In general, we'd better have a ReadOnlyFSTableDesciptors for HRegionServer<a name="line.333"></a> |
| <span class="sourceLineNo">334</span> // but now, HMaster extends HRegionServer, so unless making use of generic, we can not have<a name="line.334"></a> |
| <span class="sourceLineNo">335</span> // different implementations for HMaster and HRegionServer. Revisit this when we make HMaster<a name="line.335"></a> |
| <span class="sourceLineNo">336</span> // not extend HRegionServer in the future.<a name="line.336"></a> |
| <span class="sourceLineNo">337</span> if (fsreadonly) {<a name="line.337"></a> |
| <span class="sourceLineNo">338</span> throw new UnsupportedOperationException("Cannot add a table descriptor - in read only mode");<a name="line.338"></a> |
| <span class="sourceLineNo">339</span> }<a name="line.339"></a> |
| <span class="sourceLineNo">340</span> if (!cacheOnly) {<a name="line.340"></a> |
| <span class="sourceLineNo">341</span> updateTableDescriptor(td);<a name="line.341"></a> |
| <span class="sourceLineNo">342</span> }<a name="line.342"></a> |
| <span class="sourceLineNo">343</span> if (usecache) {<a name="line.343"></a> |
| <span class="sourceLineNo">344</span> this.cache.put(td.getTableName(), td);<a name="line.344"></a> |
| <span class="sourceLineNo">345</span> }<a name="line.345"></a> |
| <span class="sourceLineNo">346</span> }<a name="line.346"></a> |
| <span class="sourceLineNo">347</span><a name="line.347"></a> |
| <span class="sourceLineNo">348</span> @RestrictedApi(explanation = "Should only be called in tests or self", link = "",<a name="line.348"></a> |
| <span class="sourceLineNo">349</span> allowedOnPath = ".*/src/test/.*|.*/FSTableDescriptors\\.java")<a name="line.349"></a> |
| <span class="sourceLineNo">350</span> Path updateTableDescriptor(TableDescriptor td) throws IOException {<a name="line.350"></a> |
| <span class="sourceLineNo">351</span> TableName tableName = td.getTableName();<a name="line.351"></a> |
| <span class="sourceLineNo">352</span> Path tableDir = getTableDir(tableName);<a name="line.352"></a> |
| <span class="sourceLineNo">353</span> Path p = writeTableDescriptor(fs, td, tableDir,<a name="line.353"></a> |
| <span class="sourceLineNo">354</span> getTableDescriptorFromFs(fs, tableDir, fsreadonly).map(Pair::getFirst).orElse(null));<a name="line.354"></a> |
| <span class="sourceLineNo">355</span> if (p == null) {<a name="line.355"></a> |
| <span class="sourceLineNo">356</span> throw new IOException("Failed update");<a name="line.356"></a> |
| <span class="sourceLineNo">357</span> }<a name="line.357"></a> |
| <span class="sourceLineNo">358</span> LOG.info("Updated tableinfo=" + p);<a name="line.358"></a> |
| <span class="sourceLineNo">359</span> return p;<a name="line.359"></a> |
| <span class="sourceLineNo">360</span> }<a name="line.360"></a> |
| <span class="sourceLineNo">361</span><a name="line.361"></a> |
| <span class="sourceLineNo">362</span> /**<a name="line.362"></a> |
| <span class="sourceLineNo">363</span> * Removes the table descriptor from the local cache and returns it. If not in read only mode, it<a name="line.363"></a> |
| <span class="sourceLineNo">364</span> * also deletes the entire table directory(!) from the FileSystem.<a name="line.364"></a> |
| <span class="sourceLineNo">365</span> */<a name="line.365"></a> |
| <span class="sourceLineNo">366</span> @Override<a name="line.366"></a> |
| <span class="sourceLineNo">367</span> public TableDescriptor remove(final TableName tablename) throws IOException {<a name="line.367"></a> |
| <span class="sourceLineNo">368</span> if (fsreadonly) {<a name="line.368"></a> |
| <span class="sourceLineNo">369</span> throw new NotImplementedException("Cannot remove a table descriptor - in read only mode");<a name="line.369"></a> |
| <span class="sourceLineNo">370</span> }<a name="line.370"></a> |
| <span class="sourceLineNo">371</span> Path tabledir = getTableDir(tablename);<a name="line.371"></a> |
| <span class="sourceLineNo">372</span> if (this.fs.exists(tabledir)) {<a name="line.372"></a> |
| <span class="sourceLineNo">373</span> if (!this.fs.delete(tabledir, true)) {<a name="line.373"></a> |
| <span class="sourceLineNo">374</span> throw new IOException("Failed delete of " + tabledir.toString());<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> TableDescriptor descriptor = this.cache.remove(tablename);<a name="line.377"></a> |
| <span class="sourceLineNo">378</span> return descriptor;<a name="line.378"></a> |
| <span class="sourceLineNo">379</span> }<a name="line.379"></a> |
| <span class="sourceLineNo">380</span><a name="line.380"></a> |
| <span class="sourceLineNo">381</span> /**<a name="line.381"></a> |
| <span class="sourceLineNo">382</span> * Check whether we have a valid TableDescriptor.<a name="line.382"></a> |
| <span class="sourceLineNo">383</span> */<a name="line.383"></a> |
| <span class="sourceLineNo">384</span> public static boolean isTableDir(FileSystem fs, Path tableDir) throws IOException {<a name="line.384"></a> |
| <span class="sourceLineNo">385</span> return getTableDescriptorFromFs(fs, tableDir, true).isPresent();<a name="line.385"></a> |
| <span class="sourceLineNo">386</span> }<a name="line.386"></a> |
| <span class="sourceLineNo">387</span><a name="line.387"></a> |
| <span class="sourceLineNo">388</span> /**<a name="line.388"></a> |
| <span class="sourceLineNo">389</span> * Compare {@link FileStatus} instances by {@link Path#getName()}. Returns in reverse order.<a name="line.389"></a> |
| <span class="sourceLineNo">390</span> */<a name="line.390"></a> |
| <span class="sourceLineNo">391</span> static final Comparator<FileStatus> TABLEINFO_FILESTATUS_COMPARATOR =<a name="line.391"></a> |
| <span class="sourceLineNo">392</span> new Comparator<FileStatus>() {<a name="line.392"></a> |
| <span class="sourceLineNo">393</span> @Override<a name="line.393"></a> |
| <span class="sourceLineNo">394</span> public int compare(FileStatus left, FileStatus right) {<a name="line.394"></a> |
| <span class="sourceLineNo">395</span> return right.getPath().getName().compareTo(left.getPath().getName());<a name="line.395"></a> |
| <span class="sourceLineNo">396</span> }<a name="line.396"></a> |
| <span class="sourceLineNo">397</span> };<a name="line.397"></a> |
| <span class="sourceLineNo">398</span><a name="line.398"></a> |
| <span class="sourceLineNo">399</span> /**<a name="line.399"></a> |
| <span class="sourceLineNo">400</span> * Return the table directory in HDFS<a name="line.400"></a> |
| <span class="sourceLineNo">401</span> */<a name="line.401"></a> |
| <span class="sourceLineNo">402</span> private Path getTableDir(TableName tableName) {<a name="line.402"></a> |
| <span class="sourceLineNo">403</span> return CommonFSUtils.getTableDir(rootdir, tableName);<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> private static final PathFilter TABLEINFO_PATHFILTER = new PathFilter() {<a name="line.406"></a> |
| <span class="sourceLineNo">407</span> @Override<a name="line.407"></a> |
| <span class="sourceLineNo">408</span> public boolean accept(Path p) {<a name="line.408"></a> |
| <span class="sourceLineNo">409</span> // Accept any file that starts with TABLEINFO_NAME<a name="line.409"></a> |
| <span class="sourceLineNo">410</span> return p.getName().startsWith(TABLEINFO_FILE_PREFIX);<a name="line.410"></a> |
| <span class="sourceLineNo">411</span> }<a name="line.411"></a> |
| <span class="sourceLineNo">412</span> };<a name="line.412"></a> |
| <span class="sourceLineNo">413</span><a name="line.413"></a> |
| <span class="sourceLineNo">414</span> /**<a name="line.414"></a> |
| <span class="sourceLineNo">415</span> * Width of the sequenceid that is a suffix on a tableinfo file.<a name="line.415"></a> |
| <span class="sourceLineNo">416</span> */<a name="line.416"></a> |
| <span class="sourceLineNo">417</span> static final int WIDTH_OF_SEQUENCE_ID = 10;<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> * @param number Number to use as suffix.<a name="line.420"></a> |
| <span class="sourceLineNo">421</span> * @return Returns zero-prefixed decimal version of passed number (Does absolute in case number is<a name="line.421"></a> |
| <span class="sourceLineNo">422</span> * negative).<a name="line.422"></a> |
| <span class="sourceLineNo">423</span> */<a name="line.423"></a> |
| <span class="sourceLineNo">424</span> private static String formatTableInfoSequenceId(final int number) {<a name="line.424"></a> |
| <span class="sourceLineNo">425</span> byte[] b = new byte[WIDTH_OF_SEQUENCE_ID];<a name="line.425"></a> |
| <span class="sourceLineNo">426</span> int d = Math.abs(number);<a name="line.426"></a> |
| <span class="sourceLineNo">427</span> for (int i = b.length - 1; i >= 0; i--) {<a name="line.427"></a> |
| <span class="sourceLineNo">428</span> b[i] = (byte) ((d % 10) + '0');<a name="line.428"></a> |
| <span class="sourceLineNo">429</span> d /= 10;<a name="line.429"></a> |
| <span class="sourceLineNo">430</span> }<a name="line.430"></a> |
| <span class="sourceLineNo">431</span> return Bytes.toString(b);<a name="line.431"></a> |
| <span class="sourceLineNo">432</span> }<a name="line.432"></a> |
| <span class="sourceLineNo">433</span><a name="line.433"></a> |
| <span class="sourceLineNo">434</span> @Override<a name="line.434"></a> |
| <span class="sourceLineNo">435</span> public void close() throws IOException {<a name="line.435"></a> |
| <span class="sourceLineNo">436</span> // Close the executor when parallel loading enabled.<a name="line.436"></a> |
| <span class="sourceLineNo">437</span> if (tableDescriptorParallelLoadEnable) {<a name="line.437"></a> |
| <span class="sourceLineNo">438</span> this.executor.shutdown();<a name="line.438"></a> |
| <span class="sourceLineNo">439</span> }<a name="line.439"></a> |
| <span class="sourceLineNo">440</span> }<a name="line.440"></a> |
| <span class="sourceLineNo">441</span><a name="line.441"></a> |
| <span class="sourceLineNo">442</span> static final class SequenceIdAndFileLength {<a name="line.442"></a> |
| <span class="sourceLineNo">443</span><a name="line.443"></a> |
| <span class="sourceLineNo">444</span> final int sequenceId;<a name="line.444"></a> |
| <span class="sourceLineNo">445</span><a name="line.445"></a> |
| <span class="sourceLineNo">446</span> final int fileLength;<a name="line.446"></a> |
| <span class="sourceLineNo">447</span><a name="line.447"></a> |
| <span class="sourceLineNo">448</span> SequenceIdAndFileLength(int sequenceId, int fileLength) {<a name="line.448"></a> |
| <span class="sourceLineNo">449</span> this.sequenceId = sequenceId;<a name="line.449"></a> |
| <span class="sourceLineNo">450</span> this.fileLength = fileLength;<a name="line.450"></a> |
| <span class="sourceLineNo">451</span> }<a name="line.451"></a> |
| <span class="sourceLineNo">452</span> }<a name="line.452"></a> |
| <span class="sourceLineNo">453</span><a name="line.453"></a> |
| <span class="sourceLineNo">454</span> /**<a name="line.454"></a> |
| <span class="sourceLineNo">455</span> * Returns the current sequence id and file length or 0 if none found.<a name="line.455"></a> |
| <span class="sourceLineNo">456</span> * @param p Path to a <code>.tableinfo</code> file.<a name="line.456"></a> |
| <span class="sourceLineNo">457</span> */<a name="line.457"></a> |
| <span class="sourceLineNo">458</span> @RestrictedApi(explanation = "Should only be called in tests or self", link = "",<a name="line.458"></a> |
| <span class="sourceLineNo">459</span> allowedOnPath = ".*/src/test/.*|.*/FSTableDescriptors\\.java")<a name="line.459"></a> |
| <span class="sourceLineNo">460</span> static SequenceIdAndFileLength getTableInfoSequenceIdAndFileLength(Path p) {<a name="line.460"></a> |
| <span class="sourceLineNo">461</span> String name = p.getName();<a name="line.461"></a> |
| <span class="sourceLineNo">462</span> if (!name.startsWith(TABLEINFO_FILE_PREFIX)) {<a name="line.462"></a> |
| <span class="sourceLineNo">463</span> throw new IllegalArgumentException("Invalid table descriptor file name: " + name);<a name="line.463"></a> |
| <span class="sourceLineNo">464</span> }<a name="line.464"></a> |
| <span class="sourceLineNo">465</span> int firstDot = name.indexOf('.', TABLEINFO_FILE_PREFIX.length());<a name="line.465"></a> |
| <span class="sourceLineNo">466</span> if (firstDot < 0) {<a name="line.466"></a> |
| <span class="sourceLineNo">467</span> // oldest style where we do not have both sequence id and file length<a name="line.467"></a> |
| <span class="sourceLineNo">468</span> return new SequenceIdAndFileLength(0, 0);<a name="line.468"></a> |
| <span class="sourceLineNo">469</span> }<a name="line.469"></a> |
| <span class="sourceLineNo">470</span> int secondDot = name.indexOf('.', firstDot + 1);<a name="line.470"></a> |
| <span class="sourceLineNo">471</span> if (secondDot < 0) {<a name="line.471"></a> |
| <span class="sourceLineNo">472</span> // old stype where we do not have file length<a name="line.472"></a> |
| <span class="sourceLineNo">473</span> int sequenceId = Integer.parseInt(name.substring(firstDot + 1));<a name="line.473"></a> |
| <span class="sourceLineNo">474</span> return new SequenceIdAndFileLength(sequenceId, 0);<a name="line.474"></a> |
| <span class="sourceLineNo">475</span> }<a name="line.475"></a> |
| <span class="sourceLineNo">476</span> int sequenceId = Integer.parseInt(name.substring(firstDot + 1, secondDot));<a name="line.476"></a> |
| <span class="sourceLineNo">477</span> int fileLength = Integer.parseInt(name.substring(secondDot + 1));<a name="line.477"></a> |
| <span class="sourceLineNo">478</span> return new SequenceIdAndFileLength(sequenceId, fileLength);<a name="line.478"></a> |
| <span class="sourceLineNo">479</span> }<a name="line.479"></a> |
| <span class="sourceLineNo">480</span><a name="line.480"></a> |
| <span class="sourceLineNo">481</span> /**<a name="line.481"></a> |
| <span class="sourceLineNo">482</span> * Returns Name of tableinfo file.<a name="line.482"></a> |
| <span class="sourceLineNo">483</span> */<a name="line.483"></a> |
| <span class="sourceLineNo">484</span> @RestrictedApi(explanation = "Should only be called in tests or self", link = "",<a name="line.484"></a> |
| <span class="sourceLineNo">485</span> allowedOnPath = ".*/src/test/.*|.*/FSTableDescriptors\\.java")<a name="line.485"></a> |
| <span class="sourceLineNo">486</span> static String getTableInfoFileName(int sequenceId, byte[] content) {<a name="line.486"></a> |
| <span class="sourceLineNo">487</span> return TABLEINFO_FILE_PREFIX + "." + formatTableInfoSequenceId(sequenceId) + "."<a name="line.487"></a> |
| <span class="sourceLineNo">488</span> + content.length;<a name="line.488"></a> |
| <span class="sourceLineNo">489</span> }<a name="line.489"></a> |
| <span class="sourceLineNo">490</span><a name="line.490"></a> |
| <span class="sourceLineNo">491</span> /**<a name="line.491"></a> |
| <span class="sourceLineNo">492</span> * Returns the latest table descriptor for the given table directly from the file system if it<a name="line.492"></a> |
| <span class="sourceLineNo">493</span> * exists, bypassing the local cache. Returns null if it's not found.<a name="line.493"></a> |
| <span class="sourceLineNo">494</span> */<a name="line.494"></a> |
| <span class="sourceLineNo">495</span> public static TableDescriptor getTableDescriptorFromFs(FileSystem fs, Path hbaseRootDir,<a name="line.495"></a> |
| <span class="sourceLineNo">496</span> TableName tableName) throws IOException {<a name="line.496"></a> |
| <span class="sourceLineNo">497</span> Path tableDir = CommonFSUtils.getTableDir(hbaseRootDir, tableName);<a name="line.497"></a> |
| <span class="sourceLineNo">498</span> return getTableDescriptorFromFs(fs, tableDir);<a name="line.498"></a> |
| <span class="sourceLineNo">499</span> }<a name="line.499"></a> |
| <span class="sourceLineNo">500</span><a name="line.500"></a> |
| <span class="sourceLineNo">501</span> /**<a name="line.501"></a> |
| <span class="sourceLineNo">502</span> * Returns the latest table descriptor for the table located at the given directory directly from<a name="line.502"></a> |
| <span class="sourceLineNo">503</span> * the file system if it exists.<a name="line.503"></a> |
| <span class="sourceLineNo">504</span> */<a name="line.504"></a> |
| <span class="sourceLineNo">505</span> public static TableDescriptor getTableDescriptorFromFs(FileSystem fs, Path tableDir)<a name="line.505"></a> |
| <span class="sourceLineNo">506</span> throws IOException {<a name="line.506"></a> |
| <span class="sourceLineNo">507</span> return getTableDescriptorFromFs(fs, tableDir, true).map(Pair::getSecond).orElse(null);<a name="line.507"></a> |
| <span class="sourceLineNo">508</span> }<a name="line.508"></a> |
| <span class="sourceLineNo">509</span><a name="line.509"></a> |
| <span class="sourceLineNo">510</span> private static void deleteMalformedFile(FileSystem fs, Path file) throws IOException {<a name="line.510"></a> |
| <span class="sourceLineNo">511</span> LOG.info("Delete malformed table descriptor file {}", file);<a name="line.511"></a> |
| <span class="sourceLineNo">512</span> if (!fs.delete(file, false)) {<a name="line.512"></a> |
| <span class="sourceLineNo">513</span> LOG.warn("Failed to delete malformed table descriptor file {}", file);<a name="line.513"></a> |
| <span class="sourceLineNo">514</span> }<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> private static Optional<Pair<FileStatus, TableDescriptor>> getTableDescriptorFromFs(FileSystem fs,<a name="line.517"></a> |
| <span class="sourceLineNo">518</span> Path tableDir, boolean readonly) throws IOException {<a name="line.518"></a> |
| <span class="sourceLineNo">519</span> Path tableInfoDir = new Path(tableDir, TABLEINFO_DIR);<a name="line.519"></a> |
| <span class="sourceLineNo">520</span> FileStatus[] descFiles = CommonFSUtils.listStatus(fs, tableInfoDir, TABLEINFO_PATHFILTER);<a name="line.520"></a> |
| <span class="sourceLineNo">521</span> if (descFiles == null || descFiles.length < 1) {<a name="line.521"></a> |
| <span class="sourceLineNo">522</span> return Optional.empty();<a name="line.522"></a> |
| <span class="sourceLineNo">523</span> }<a name="line.523"></a> |
| <span class="sourceLineNo">524</span> Arrays.sort(descFiles, TABLEINFO_FILESTATUS_COMPARATOR);<a name="line.524"></a> |
| <span class="sourceLineNo">525</span> int i = 0;<a name="line.525"></a> |
| <span class="sourceLineNo">526</span> TableDescriptor td = null;<a name="line.526"></a> |
| <span class="sourceLineNo">527</span> FileStatus descFile = null;<a name="line.527"></a> |
| <span class="sourceLineNo">528</span> for (; i < descFiles.length; i++) {<a name="line.528"></a> |
| <span class="sourceLineNo">529</span> descFile = descFiles[i];<a name="line.529"></a> |
| <span class="sourceLineNo">530</span> Path file = descFile.getPath();<a name="line.530"></a> |
| <span class="sourceLineNo">531</span> // get file length from file name if present<a name="line.531"></a> |
| <span class="sourceLineNo">532</span> int fileLength = getTableInfoSequenceIdAndFileLength(file).fileLength;<a name="line.532"></a> |
| <span class="sourceLineNo">533</span> byte[] content = new byte[fileLength > 0 ? fileLength : Ints.checkedCast(descFile.getLen())];<a name="line.533"></a> |
| <span class="sourceLineNo">534</span> try (FSDataInputStream in = fs.open(file)) {<a name="line.534"></a> |
| <span class="sourceLineNo">535</span> in.readFully(content);<a name="line.535"></a> |
| <span class="sourceLineNo">536</span> } catch (EOFException e) {<a name="line.536"></a> |
| <span class="sourceLineNo">537</span> LOG.info("Failed to load file {} due to EOF, it should be half written: {}", file,<a name="line.537"></a> |
| <span class="sourceLineNo">538</span> e.toString());<a name="line.538"></a> |
| <span class="sourceLineNo">539</span> if (!readonly) {<a name="line.539"></a> |
| <span class="sourceLineNo">540</span> deleteMalformedFile(fs, file);<a name="line.540"></a> |
| <span class="sourceLineNo">541</span> }<a name="line.541"></a> |
| <span class="sourceLineNo">542</span> continue;<a name="line.542"></a> |
| <span class="sourceLineNo">543</span> }<a name="line.543"></a> |
| <span class="sourceLineNo">544</span> try {<a name="line.544"></a> |
| <span class="sourceLineNo">545</span> td = TableDescriptorBuilder.parseFrom(content);<a name="line.545"></a> |
| <span class="sourceLineNo">546</span> break;<a name="line.546"></a> |
| <span class="sourceLineNo">547</span> } catch (DeserializationException e) {<a name="line.547"></a> |
| <span class="sourceLineNo">548</span> LOG.info("Failed to parse file {} due to malformed protobuf message: {}", file,<a name="line.548"></a> |
| <span class="sourceLineNo">549</span> e.toString());<a name="line.549"></a> |
| <span class="sourceLineNo">550</span> if (!readonly) {<a name="line.550"></a> |
| <span class="sourceLineNo">551</span> deleteMalformedFile(fs, file);<a name="line.551"></a> |
| <span class="sourceLineNo">552</span> }<a name="line.552"></a> |
| <span class="sourceLineNo">553</span> }<a name="line.553"></a> |
| <span class="sourceLineNo">554</span> }<a name="line.554"></a> |
| <span class="sourceLineNo">555</span> if (!readonly) {<a name="line.555"></a> |
| <span class="sourceLineNo">556</span> // i + 1 to skip the one we load<a name="line.556"></a> |
| <span class="sourceLineNo">557</span> for (i = i + 1; i < descFiles.length; i++) {<a name="line.557"></a> |
| <span class="sourceLineNo">558</span> Path file = descFiles[i].getPath();<a name="line.558"></a> |
| <span class="sourceLineNo">559</span> LOG.info("Delete old table descriptor file {}", file);<a name="line.559"></a> |
| <span class="sourceLineNo">560</span> if (!fs.delete(file, false)) {<a name="line.560"></a> |
| <span class="sourceLineNo">561</span> LOG.info("Failed to delete old table descriptor file {}", file);<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> }<a name="line.564"></a> |
| <span class="sourceLineNo">565</span> return td != null ? Optional.of(Pair.newPair(descFile, td)) : Optional.empty();<a name="line.565"></a> |
| <span class="sourceLineNo">566</span> }<a name="line.566"></a> |
| <span class="sourceLineNo">567</span><a name="line.567"></a> |
| <span class="sourceLineNo">568</span> @RestrictedApi(explanation = "Should only be called in tests", link = "",<a name="line.568"></a> |
| <span class="sourceLineNo">569</span> allowedOnPath = ".*/src/test/.*")<a name="line.569"></a> |
| <span class="sourceLineNo">570</span> public static void deleteTableDescriptors(FileSystem fs, Path tableDir) throws IOException {<a name="line.570"></a> |
| <span class="sourceLineNo">571</span> Path tableInfoDir = new Path(tableDir, TABLEINFO_DIR);<a name="line.571"></a> |
| <span class="sourceLineNo">572</span> deleteTableDescriptorFiles(fs, tableInfoDir, Integer.MAX_VALUE);<a name="line.572"></a> |
| <span class="sourceLineNo">573</span> }<a name="line.573"></a> |
| <span class="sourceLineNo">574</span><a name="line.574"></a> |
| <span class="sourceLineNo">575</span> /**<a name="line.575"></a> |
| <span class="sourceLineNo">576</span> * Deletes files matching the table info file pattern within the given directory whose sequenceId<a name="line.576"></a> |
| <span class="sourceLineNo">577</span> * is at most the given max sequenceId.<a name="line.577"></a> |
| <span class="sourceLineNo">578</span> */<a name="line.578"></a> |
| <span class="sourceLineNo">579</span> private static void deleteTableDescriptorFiles(FileSystem fs, Path dir, int maxSequenceId)<a name="line.579"></a> |
| <span class="sourceLineNo">580</span> throws IOException {<a name="line.580"></a> |
| <span class="sourceLineNo">581</span> FileStatus[] status = CommonFSUtils.listStatus(fs, dir, TABLEINFO_PATHFILTER);<a name="line.581"></a> |
| <span class="sourceLineNo">582</span> for (FileStatus file : status) {<a name="line.582"></a> |
| <span class="sourceLineNo">583</span> Path path = file.getPath();<a name="line.583"></a> |
| <span class="sourceLineNo">584</span> int sequenceId = getTableInfoSequenceIdAndFileLength(path).sequenceId;<a name="line.584"></a> |
| <span class="sourceLineNo">585</span> if (sequenceId <= maxSequenceId) {<a name="line.585"></a> |
| <span class="sourceLineNo">586</span> boolean success = CommonFSUtils.delete(fs, path, false);<a name="line.586"></a> |
| <span class="sourceLineNo">587</span> if (success) {<a name="line.587"></a> |
| <span class="sourceLineNo">588</span> LOG.debug("Deleted {}", path);<a name="line.588"></a> |
| <span class="sourceLineNo">589</span> } else {<a name="line.589"></a> |
| <span class="sourceLineNo">590</span> LOG.error("Failed to delete table descriptor at {}", path);<a name="line.590"></a> |
| <span class="sourceLineNo">591</span> }<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><a name="line.595"></a> |
| <span class="sourceLineNo">596</span> /**<a name="line.596"></a> |
| <span class="sourceLineNo">597</span> * Attempts to write a new table descriptor to the given table's directory. It begins at the<a name="line.597"></a> |
| <span class="sourceLineNo">598</span> * currentSequenceId + 1 and tries 10 times to find a new sequence number not already in use.<a name="line.598"></a> |
| <span class="sourceLineNo">599</span> * <p/><a name="line.599"></a> |
| <span class="sourceLineNo">600</span> * Removes the current descriptor file if passed in.<a name="line.600"></a> |
| <span class="sourceLineNo">601</span> * @return Descriptor file or null if we failed write.<a name="line.601"></a> |
| <span class="sourceLineNo">602</span> */<a name="line.602"></a> |
| <span class="sourceLineNo">603</span> private static Path writeTableDescriptor(final FileSystem fs, final TableDescriptor td,<a name="line.603"></a> |
| <span class="sourceLineNo">604</span> final Path tableDir, final FileStatus currentDescriptorFile) throws IOException {<a name="line.604"></a> |
| <span class="sourceLineNo">605</span> // Here we will write to the final directory directly to avoid renaming as on OSS renaming is<a name="line.605"></a> |
| <span class="sourceLineNo">606</span> // not atomic and has performance issue. The reason why we could do this is that, in the below<a name="line.606"></a> |
| <span class="sourceLineNo">607</span> // code we will not overwrite existing files, we will write a new file instead. And when<a name="line.607"></a> |
| <span class="sourceLineNo">608</span> // loading, we will skip the half written file, please see the code in getTableDescriptorFromFs<a name="line.608"></a> |
| <span class="sourceLineNo">609</span> Path tableInfoDir = new Path(tableDir, TABLEINFO_DIR);<a name="line.609"></a> |
| <span class="sourceLineNo">610</span><a name="line.610"></a> |
| <span class="sourceLineNo">611</span> // In proc v2 we have table lock so typically, there will be no concurrent writes. Keep the<a name="line.611"></a> |
| <span class="sourceLineNo">612</span> // retry logic here since we may still want to write the table descriptor from for example,<a name="line.612"></a> |
| <span class="sourceLineNo">613</span> // HBCK2?<a name="line.613"></a> |
| <span class="sourceLineNo">614</span> int currentSequenceId = currentDescriptorFile == null<a name="line.614"></a> |
| <span class="sourceLineNo">615</span> ? 0<a name="line.615"></a> |
| <span class="sourceLineNo">616</span> : getTableInfoSequenceIdAndFileLength(currentDescriptorFile.getPath()).sequenceId;<a name="line.616"></a> |
| <span class="sourceLineNo">617</span><a name="line.617"></a> |
| <span class="sourceLineNo">618</span> // Put arbitrary upperbound on how often we retry<a name="line.618"></a> |
| <span class="sourceLineNo">619</span> int maxAttempts = 10;<a name="line.619"></a> |
| <span class="sourceLineNo">620</span> int maxSequenceId = currentSequenceId + maxAttempts;<a name="line.620"></a> |
| <span class="sourceLineNo">621</span> byte[] bytes = TableDescriptorBuilder.toByteArray(td);<a name="line.621"></a> |
| <span class="sourceLineNo">622</span> for (int newSequenceId = currentSequenceId + 1; newSequenceId<a name="line.622"></a> |
| <span class="sourceLineNo">623</span> <= maxSequenceId; newSequenceId++) {<a name="line.623"></a> |
| <span class="sourceLineNo">624</span> String fileName = getTableInfoFileName(newSequenceId, bytes);<a name="line.624"></a> |
| <span class="sourceLineNo">625</span> Path filePath = new Path(tableInfoDir, fileName);<a name="line.625"></a> |
| <span class="sourceLineNo">626</span> try (FSDataOutputStream out = fs.create(filePath, false)) {<a name="line.626"></a> |
| <span class="sourceLineNo">627</span> out.write(bytes);<a name="line.627"></a> |
| <span class="sourceLineNo">628</span> } catch (FileAlreadyExistsException e) {<a name="line.628"></a> |
| <span class="sourceLineNo">629</span> LOG.debug("{} exists; retrying up to {} times", filePath, maxAttempts, e);<a name="line.629"></a> |
| <span class="sourceLineNo">630</span> continue;<a name="line.630"></a> |
| <span class="sourceLineNo">631</span> } catch (IOException e) {<a name="line.631"></a> |
| <span class="sourceLineNo">632</span> LOG.debug("Failed write {}; retrying up to {} times", filePath, maxAttempts, e);<a name="line.632"></a> |
| <span class="sourceLineNo">633</span> continue;<a name="line.633"></a> |
| <span class="sourceLineNo">634</span> }<a name="line.634"></a> |
| <span class="sourceLineNo">635</span> deleteTableDescriptorFiles(fs, tableInfoDir, newSequenceId - 1);<a name="line.635"></a> |
| <span class="sourceLineNo">636</span> return filePath;<a name="line.636"></a> |
| <span class="sourceLineNo">637</span> }<a name="line.637"></a> |
| <span class="sourceLineNo">638</span> return null;<a name="line.638"></a> |
| <span class="sourceLineNo">639</span> }<a name="line.639"></a> |
| <span class="sourceLineNo">640</span><a name="line.640"></a> |
| <span class="sourceLineNo">641</span> /**<a name="line.641"></a> |
| <span class="sourceLineNo">642</span> * Create new TableDescriptor in HDFS. Happens when we are creating table. Used by tests.<a name="line.642"></a> |
| <span class="sourceLineNo">643</span> * @return True if we successfully created file.<a name="line.643"></a> |
| <span class="sourceLineNo">644</span> */<a name="line.644"></a> |
| <span class="sourceLineNo">645</span> public boolean createTableDescriptor(TableDescriptor htd) throws IOException {<a name="line.645"></a> |
| <span class="sourceLineNo">646</span> return createTableDescriptor(htd, false);<a name="line.646"></a> |
| <span class="sourceLineNo">647</span> }<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> * Create new TableDescriptor in HDFS. Happens when we are creating table. If forceCreation is<a name="line.650"></a> |
| <span class="sourceLineNo">651</span> * true then even if previous table descriptor is present it will be overwritten<a name="line.651"></a> |
| <span class="sourceLineNo">652</span> * @return True if we successfully created file.<a name="line.652"></a> |
| <span class="sourceLineNo">653</span> */<a name="line.653"></a> |
| <span class="sourceLineNo">654</span> public boolean createTableDescriptor(TableDescriptor htd, boolean forceCreation)<a name="line.654"></a> |
| <span class="sourceLineNo">655</span> throws IOException {<a name="line.655"></a> |
| <span class="sourceLineNo">656</span> Path tableDir = getTableDir(htd.getTableName());<a name="line.656"></a> |
| <span class="sourceLineNo">657</span> return createTableDescriptorForTableDirectory(tableDir, htd, forceCreation);<a name="line.657"></a> |
| <span class="sourceLineNo">658</span> }<a name="line.658"></a> |
| <span class="sourceLineNo">659</span><a name="line.659"></a> |
| <span class="sourceLineNo">660</span> /**<a name="line.660"></a> |
| <span class="sourceLineNo">661</span> * Create a new TableDescriptor in HDFS in the specified table directory. Happens when we create a<a name="line.661"></a> |
| <span class="sourceLineNo">662</span> * new table during cluster start or in Clone and Create Table Procedures. Checks readOnly flag<a name="line.662"></a> |
| <span class="sourceLineNo">663</span> * passed on construction.<a name="line.663"></a> |
| <span class="sourceLineNo">664</span> * @param tableDir table directory under which we should write the file<a name="line.664"></a> |
| <span class="sourceLineNo">665</span> * @param htd description of the table to write<a name="line.665"></a> |
| <span class="sourceLineNo">666</span> * @param forceCreation if <tt>true</tt>,then even if previous table descriptor is present it will<a name="line.666"></a> |
| <span class="sourceLineNo">667</span> * be overwritten<a name="line.667"></a> |
| <span class="sourceLineNo">668</span> * @return <tt>true</tt> if the we successfully created the file, <tt>false</tt> if the file<a name="line.668"></a> |
| <span class="sourceLineNo">669</span> * already exists and we weren't forcing the descriptor creation.<a name="line.669"></a> |
| <span class="sourceLineNo">670</span> * @throws IOException if a filesystem error occurs<a name="line.670"></a> |
| <span class="sourceLineNo">671</span> */<a name="line.671"></a> |
| <span class="sourceLineNo">672</span> public boolean createTableDescriptorForTableDirectory(Path tableDir, TableDescriptor htd,<a name="line.672"></a> |
| <span class="sourceLineNo">673</span> boolean forceCreation) throws IOException {<a name="line.673"></a> |
| <span class="sourceLineNo">674</span> if (this.fsreadonly) {<a name="line.674"></a> |
| <span class="sourceLineNo">675</span> throw new NotImplementedException("Cannot create a table descriptor - in read only mode");<a name="line.675"></a> |
| <span class="sourceLineNo">676</span> }<a name="line.676"></a> |
| <span class="sourceLineNo">677</span> return createTableDescriptorForTableDirectory(this.fs, tableDir, htd, forceCreation);<a name="line.677"></a> |
| <span class="sourceLineNo">678</span> }<a name="line.678"></a> |
| <span class="sourceLineNo">679</span><a name="line.679"></a> |
| <span class="sourceLineNo">680</span> /**<a name="line.680"></a> |
| <span class="sourceLineNo">681</span> * Create a new TableDescriptor in HDFS in the specified table directory. Happens when we create a<a name="line.681"></a> |
| <span class="sourceLineNo">682</span> * new table snapshoting. Does not enforce read-only. That is for caller to determine.<a name="line.682"></a> |
| <span class="sourceLineNo">683</span> * @param fs Filesystem to use.<a name="line.683"></a> |
| <span class="sourceLineNo">684</span> * @param tableDir table directory under which we should write the file<a name="line.684"></a> |
| <span class="sourceLineNo">685</span> * @param htd description of the table to write<a name="line.685"></a> |
| <span class="sourceLineNo">686</span> * @param forceCreation if <tt>true</tt>,then even if previous table descriptor is present it will<a name="line.686"></a> |
| <span class="sourceLineNo">687</span> * be overwritten<a name="line.687"></a> |
| <span class="sourceLineNo">688</span> * @return <tt>true</tt> if the we successfully created the file, <tt>false</tt> if the file<a name="line.688"></a> |
| <span class="sourceLineNo">689</span> * already exists and we weren't forcing the descriptor creation.<a name="line.689"></a> |
| <span class="sourceLineNo">690</span> * @throws IOException if a filesystem error occurs<a name="line.690"></a> |
| <span class="sourceLineNo">691</span> */<a name="line.691"></a> |
| <span class="sourceLineNo">692</span> public static boolean createTableDescriptorForTableDirectory(FileSystem fs, Path tableDir,<a name="line.692"></a> |
| <span class="sourceLineNo">693</span> TableDescriptor htd, boolean forceCreation) throws IOException {<a name="line.693"></a> |
| <span class="sourceLineNo">694</span> Optional<Pair<FileStatus, TableDescriptor>> opt = getTableDescriptorFromFs(fs, tableDir, false);<a name="line.694"></a> |
| <span class="sourceLineNo">695</span> if (opt.isPresent()) {<a name="line.695"></a> |
| <span class="sourceLineNo">696</span> LOG.debug("Current path={}", opt.get().getFirst());<a name="line.696"></a> |
| <span class="sourceLineNo">697</span> if (!forceCreation) {<a name="line.697"></a> |
| <span class="sourceLineNo">698</span> if (htd.equals(opt.get().getSecond())) {<a name="line.698"></a> |
| <span class="sourceLineNo">699</span> LOG.trace("TableInfo already exists.. Skipping creation");<a name="line.699"></a> |
| <span class="sourceLineNo">700</span> return false;<a name="line.700"></a> |
| <span class="sourceLineNo">701</span> }<a name="line.701"></a> |
| <span class="sourceLineNo">702</span> }<a name="line.702"></a> |
| <span class="sourceLineNo">703</span> }<a name="line.703"></a> |
| <span class="sourceLineNo">704</span> return writeTableDescriptor(fs, htd, tableDir, opt.map(Pair::getFirst).orElse(null)) != null;<a name="line.704"></a> |
| <span class="sourceLineNo">705</span> }<a name="line.705"></a> |
| <span class="sourceLineNo">706</span>}<a name="line.706"></a> |
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| </div> |
| </body> |
| </html> |
