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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;<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.IOException;<a name="line.21"></a> |
| <span class="sourceLineNo">022</span>import java.util.ArrayList;<a name="line.22"></a> |
| <span class="sourceLineNo">023</span>import java.util.Arrays;<a name="line.23"></a> |
| <span class="sourceLineNo">024</span>import java.util.LinkedHashMap;<a name="line.24"></a> |
| <span class="sourceLineNo">025</span>import java.util.List;<a name="line.25"></a> |
| <span class="sourceLineNo">026</span>import java.util.Map;<a name="line.26"></a> |
| <span class="sourceLineNo">027</span>import java.util.NavigableMap;<a name="line.27"></a> |
| <span class="sourceLineNo">028</span>import java.util.SortedMap;<a name="line.28"></a> |
| <span class="sourceLineNo">029</span>import java.util.regex.Matcher;<a name="line.29"></a> |
| <span class="sourceLineNo">030</span>import java.util.regex.Pattern;<a name="line.30"></a> |
| <span class="sourceLineNo">031</span>import org.apache.hadoop.hbase.client.RegionInfo;<a name="line.31"></a> |
| <span class="sourceLineNo">032</span>import org.apache.hadoop.hbase.client.RegionInfoBuilder;<a name="line.32"></a> |
| <span class="sourceLineNo">033</span>import org.apache.hadoop.hbase.client.RegionReplicaUtil;<a name="line.33"></a> |
| <span class="sourceLineNo">034</span>import org.apache.hadoop.hbase.client.Result;<a name="line.34"></a> |
| <span class="sourceLineNo">035</span>import org.apache.hadoop.hbase.client.TableState;<a name="line.35"></a> |
| <span class="sourceLineNo">036</span>import org.apache.hadoop.hbase.exceptions.DeserializationException;<a name="line.36"></a> |
| <span class="sourceLineNo">037</span>import org.apache.hadoop.hbase.util.Bytes;<a name="line.37"></a> |
| <span class="sourceLineNo">038</span>import org.apache.yetus.audience.InterfaceAudience;<a name="line.38"></a> |
| <span class="sourceLineNo">039</span>import org.slf4j.Logger;<a name="line.39"></a> |
| <span class="sourceLineNo">040</span>import org.slf4j.LoggerFactory;<a name="line.40"></a> |
| <span class="sourceLineNo">041</span><a name="line.41"></a> |
| <span class="sourceLineNo">042</span>import org.apache.hbase.thirdparty.com.google.common.annotations.VisibleForTesting;<a name="line.42"></a> |
| <span class="sourceLineNo">043</span><a name="line.43"></a> |
| <span class="sourceLineNo">044</span>/**<a name="line.44"></a> |
| <span class="sourceLineNo">045</span> * Helper class for generating/parsing<a name="line.45"></a> |
| <span class="sourceLineNo">046</span> * {@value org.apache.hadoop.hbase.HConstants#CATALOG_FAMILY_STR} family cells in meta table.<a name="line.46"></a> |
| <span class="sourceLineNo">047</span> * <p/><a name="line.47"></a> |
| <span class="sourceLineNo">048</span> * The cells in catalog family are:<a name="line.48"></a> |
| <span class="sourceLineNo">049</span> *<a name="line.49"></a> |
| <span class="sourceLineNo">050</span> * <pre><a name="line.50"></a> |
| <span class="sourceLineNo">051</span> * For each table range ('Region'), there is a single row, formatted as:<a name="line.51"></a> |
| <span class="sourceLineNo">052</span> * &lt;tableName&gt;,&lt;startKey&gt;,&lt;regionId&gt;,&lt;encodedRegionName&gt;.<a name="line.52"></a> |
| <span class="sourceLineNo">053</span> * This row is the serialized regionName of the default region replica.<a name="line.53"></a> |
| <span class="sourceLineNo">054</span> * Columns are:<a name="line.54"></a> |
| <span class="sourceLineNo">055</span> * info:regioninfo => contains serialized HRI for the default region replica<a name="line.55"></a> |
| <span class="sourceLineNo">056</span> * info:server => contains hostname:port (in string form) for the server hosting<a name="line.56"></a> |
| <span class="sourceLineNo">057</span> * the default regionInfo replica<a name="line.57"></a> |
| <span class="sourceLineNo">058</span> * info:server_&lt;replicaId&gt => contains hostname:port (in string form) for the server hosting<a name="line.58"></a> |
| <span class="sourceLineNo">059</span> * the regionInfo replica with replicaId<a name="line.59"></a> |
| <span class="sourceLineNo">060</span> * info:serverstartcode => contains server start code (in binary long form) for the server<a name="line.60"></a> |
| <span class="sourceLineNo">061</span> * hosting the default regionInfo replica<a name="line.61"></a> |
| <span class="sourceLineNo">062</span> * info:serverstartcode_&lt;replicaId&gt => contains server start code (in binary long form) for<a name="line.62"></a> |
| <span class="sourceLineNo">063</span> * the server hosting the regionInfo replica with<a name="line.63"></a> |
| <span class="sourceLineNo">064</span> * replicaId<a name="line.64"></a> |
| <span class="sourceLineNo">065</span> * info:seqnumDuringOpen => contains seqNum (in binary long form) for the region at the time<a name="line.65"></a> |
| <span class="sourceLineNo">066</span> * the server opened the region with default replicaId<a name="line.66"></a> |
| <span class="sourceLineNo">067</span> * info:seqnumDuringOpen_&lt;replicaId&gt => contains seqNum (in binary long form) for the region<a name="line.67"></a> |
| <span class="sourceLineNo">068</span> * at the time the server opened the region with<a name="line.68"></a> |
| <span class="sourceLineNo">069</span> * replicaId<a name="line.69"></a> |
| <span class="sourceLineNo">070</span> * info:splitA => contains a serialized HRI for the first daughter region if the<a name="line.70"></a> |
| <span class="sourceLineNo">071</span> * region is split<a name="line.71"></a> |
| <span class="sourceLineNo">072</span> * info:splitB => contains a serialized HRI for the second daughter region if the<a name="line.72"></a> |
| <span class="sourceLineNo">073</span> * region is split<a name="line.73"></a> |
| <span class="sourceLineNo">074</span> * info:merge* => contains a serialized HRI for a merge parent region. There will be two<a name="line.74"></a> |
| <span class="sourceLineNo">075</span> * or more of these columns in a row. A row that has these columns is<a name="line.75"></a> |
| <span class="sourceLineNo">076</span> * undergoing a merge and is the result of the merge. Columns listed<a name="line.76"></a> |
| <span class="sourceLineNo">077</span> * in marge* columns are the parents of this merged region. Example<a name="line.77"></a> |
| <span class="sourceLineNo">078</span> * columns: info:merge0001, info:merge0002. You make also see 'mergeA',<a name="line.78"></a> |
| <span class="sourceLineNo">079</span> * and 'mergeB'. This is old form replaced by the new format that allows<a name="line.79"></a> |
| <span class="sourceLineNo">080</span> * for more than two parents to be merged at a time.<a name="line.80"></a> |
| <span class="sourceLineNo">081</span> * </pre><a name="line.81"></a> |
| <span class="sourceLineNo">082</span> */<a name="line.82"></a> |
| <span class="sourceLineNo">083</span>@InterfaceAudience.Private<a name="line.83"></a> |
| <span class="sourceLineNo">084</span>public class CatalogFamilyFormat {<a name="line.84"></a> |
| <span class="sourceLineNo">085</span><a name="line.85"></a> |
| <span class="sourceLineNo">086</span> private static final Logger LOG = LoggerFactory.getLogger(CatalogFamilyFormat.class);<a name="line.86"></a> |
| <span class="sourceLineNo">087</span><a name="line.87"></a> |
| <span class="sourceLineNo">088</span> /** A regex for parsing server columns from meta. See above javadoc for meta layout */<a name="line.88"></a> |
| <span class="sourceLineNo">089</span> private static final Pattern SERVER_COLUMN_PATTERN =<a name="line.89"></a> |
| <span class="sourceLineNo">090</span> Pattern.compile("^server(_[0-9a-fA-F]{4})?$");<a name="line.90"></a> |
| <span class="sourceLineNo">091</span><a name="line.91"></a> |
| <span class="sourceLineNo">092</span> /**<a name="line.92"></a> |
| <span class="sourceLineNo">093</span> * Returns an HRI parsed from this regionName. Not all the fields of the HRI is stored in the<a name="line.93"></a> |
| <span class="sourceLineNo">094</span> * name, so the returned object should only be used for the fields in the regionName.<a name="line.94"></a> |
| <span class="sourceLineNo">095</span> * <p/><a name="line.95"></a> |
| <span class="sourceLineNo">096</span> * Since the returned object does not contain all the fields, we do not expose this method in<a name="line.96"></a> |
| <span class="sourceLineNo">097</span> * public API, such as {@link RegionInfo} or {@link RegionInfoBuilder}.<a name="line.97"></a> |
| <span class="sourceLineNo">098</span> */<a name="line.98"></a> |
| <span class="sourceLineNo">099</span> public static RegionInfo parseRegionInfoFromRegionName(byte[] regionName) throws IOException {<a name="line.99"></a> |
| <span class="sourceLineNo">100</span> byte[][] fields = RegionInfo.parseRegionName(regionName);<a name="line.100"></a> |
| <span class="sourceLineNo">101</span> long regionId = Long.parseLong(Bytes.toString(fields[2]));<a name="line.101"></a> |
| <span class="sourceLineNo">102</span> int replicaId = fields.length > 3 ? Integer.parseInt(Bytes.toString(fields[3]), 16) : 0;<a name="line.102"></a> |
| <span class="sourceLineNo">103</span> return RegionInfoBuilder.newBuilder(TableName.valueOf(fields[0])).setStartKey(fields[1])<a name="line.103"></a> |
| <span class="sourceLineNo">104</span> .setEndKey(fields[2]).setSplit(false).setRegionId(regionId).setReplicaId(replicaId).build();<a name="line.104"></a> |
| <span class="sourceLineNo">105</span> }<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> * Returns the RegionInfo object from the column {@link HConstants#CATALOG_FAMILY} and<a name="line.108"></a> |
| <span class="sourceLineNo">109</span> * <code>qualifier</code> of the catalog table result.<a name="line.109"></a> |
| <span class="sourceLineNo">110</span> * @param r a Result object from the catalog table scan<a name="line.110"></a> |
| <span class="sourceLineNo">111</span> * @param qualifier Column family qualifier<a name="line.111"></a> |
| <span class="sourceLineNo">112</span> * @return An RegionInfo instance or null.<a name="line.112"></a> |
| <span class="sourceLineNo">113</span> */<a name="line.113"></a> |
| <span class="sourceLineNo">114</span> @Nullable<a name="line.114"></a> |
| <span class="sourceLineNo">115</span> public static RegionInfo getRegionInfo(final Result r, byte[] qualifier) {<a name="line.115"></a> |
| <span class="sourceLineNo">116</span> Cell cell = r.getColumnLatestCell(HConstants.CATALOG_FAMILY, qualifier);<a name="line.116"></a> |
| <span class="sourceLineNo">117</span> if (cell == null) {<a name="line.117"></a> |
| <span class="sourceLineNo">118</span> return null;<a name="line.118"></a> |
| <span class="sourceLineNo">119</span> }<a name="line.119"></a> |
| <span class="sourceLineNo">120</span> return RegionInfo.parseFromOrNull(cell.getValueArray(), cell.getValueOffset(),<a name="line.120"></a> |
| <span class="sourceLineNo">121</span> cell.getValueLength());<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> /**<a name="line.124"></a> |
| <span class="sourceLineNo">125</span> * Returns RegionInfo object from the column<a name="line.125"></a> |
| <span class="sourceLineNo">126</span> * HConstants.CATALOG_FAMILY:HConstants.REGIONINFO_QUALIFIER of the catalog table Result.<a name="line.126"></a> |
| <span class="sourceLineNo">127</span> * @param data a Result object from the catalog table scan<a name="line.127"></a> |
| <span class="sourceLineNo">128</span> * @return RegionInfo or null<a name="line.128"></a> |
| <span class="sourceLineNo">129</span> */<a name="line.129"></a> |
| <span class="sourceLineNo">130</span> public static RegionInfo getRegionInfo(Result data) {<a name="line.130"></a> |
| <span class="sourceLineNo">131</span> return getRegionInfo(data, HConstants.REGIONINFO_QUALIFIER);<a name="line.131"></a> |
| <span class="sourceLineNo">132</span> }<a name="line.132"></a> |
| <span class="sourceLineNo">133</span><a name="line.133"></a> |
| <span class="sourceLineNo">134</span> /**<a name="line.134"></a> |
| <span class="sourceLineNo">135</span> * Returns the HRegionLocation parsed from the given meta row Result for the given regionInfo and<a name="line.135"></a> |
| <span class="sourceLineNo">136</span> * replicaId. The regionInfo can be the default region info for the replica.<a name="line.136"></a> |
| <span class="sourceLineNo">137</span> * @param r the meta row result<a name="line.137"></a> |
| <span class="sourceLineNo">138</span> * @param regionInfo RegionInfo for default replica<a name="line.138"></a> |
| <span class="sourceLineNo">139</span> * @param replicaId the replicaId for the HRegionLocation<a name="line.139"></a> |
| <span class="sourceLineNo">140</span> * @return HRegionLocation parsed from the given meta row Result for the given replicaId<a name="line.140"></a> |
| <span class="sourceLineNo">141</span> */<a name="line.141"></a> |
| <span class="sourceLineNo">142</span> public static HRegionLocation getRegionLocation(final Result r, final RegionInfo regionInfo,<a name="line.142"></a> |
| <span class="sourceLineNo">143</span> final int replicaId) {<a name="line.143"></a> |
| <span class="sourceLineNo">144</span> ServerName serverName = getServerName(r, replicaId);<a name="line.144"></a> |
| <span class="sourceLineNo">145</span> long seqNum = getSeqNumDuringOpen(r, replicaId);<a name="line.145"></a> |
| <span class="sourceLineNo">146</span> RegionInfo replicaInfo = RegionReplicaUtil.getRegionInfoForReplica(regionInfo, replicaId);<a name="line.146"></a> |
| <span class="sourceLineNo">147</span> return new HRegionLocation(replicaInfo, serverName, seqNum);<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> * Returns an HRegionLocationList extracted from the result.<a name="line.151"></a> |
| <span class="sourceLineNo">152</span> * @return an HRegionLocationList containing all locations for the region range or null if we<a name="line.152"></a> |
| <span class="sourceLineNo">153</span> * can't deserialize the result.<a name="line.153"></a> |
| <span class="sourceLineNo">154</span> */<a name="line.154"></a> |
| <span class="sourceLineNo">155</span> @Nullable<a name="line.155"></a> |
| <span class="sourceLineNo">156</span> public static RegionLocations getRegionLocations(final Result r) {<a name="line.156"></a> |
| <span class="sourceLineNo">157</span> if (r == null) {<a name="line.157"></a> |
| <span class="sourceLineNo">158</span> return null;<a name="line.158"></a> |
| <span class="sourceLineNo">159</span> }<a name="line.159"></a> |
| <span class="sourceLineNo">160</span> RegionInfo regionInfo = getRegionInfo(r, HConstants.REGIONINFO_QUALIFIER);<a name="line.160"></a> |
| <span class="sourceLineNo">161</span> if (regionInfo == null) {<a name="line.161"></a> |
| <span class="sourceLineNo">162</span> return null;<a name="line.162"></a> |
| <span class="sourceLineNo">163</span> }<a name="line.163"></a> |
| <span class="sourceLineNo">164</span><a name="line.164"></a> |
| <span class="sourceLineNo">165</span> List<HRegionLocation> locations = new ArrayList<>(1);<a name="line.165"></a> |
| <span class="sourceLineNo">166</span> NavigableMap<byte[], NavigableMap<byte[], byte[]>> familyMap = r.getNoVersionMap();<a name="line.166"></a> |
| <span class="sourceLineNo">167</span><a name="line.167"></a> |
| <span class="sourceLineNo">168</span> locations.add(getRegionLocation(r, regionInfo, 0));<a name="line.168"></a> |
| <span class="sourceLineNo">169</span><a name="line.169"></a> |
| <span class="sourceLineNo">170</span> NavigableMap<byte[], byte[]> infoMap = familyMap.get(HConstants.CATALOG_FAMILY);<a name="line.170"></a> |
| <span class="sourceLineNo">171</span> if (infoMap == null) {<a name="line.171"></a> |
| <span class="sourceLineNo">172</span> return new RegionLocations(locations);<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> // iterate until all serverName columns are seen<a name="line.175"></a> |
| <span class="sourceLineNo">176</span> int replicaId = 0;<a name="line.176"></a> |
| <span class="sourceLineNo">177</span> byte[] serverColumn = getServerColumn(replicaId);<a name="line.177"></a> |
| <span class="sourceLineNo">178</span> SortedMap<byte[], byte[]> serverMap;<a name="line.178"></a> |
| <span class="sourceLineNo">179</span> serverMap = infoMap.tailMap(serverColumn, false);<a name="line.179"></a> |
| <span class="sourceLineNo">180</span><a name="line.180"></a> |
| <span class="sourceLineNo">181</span> if (serverMap.isEmpty()) {<a name="line.181"></a> |
| <span class="sourceLineNo">182</span> return new RegionLocations(locations);<a name="line.182"></a> |
| <span class="sourceLineNo">183</span> }<a name="line.183"></a> |
| <span class="sourceLineNo">184</span><a name="line.184"></a> |
| <span class="sourceLineNo">185</span> for (Map.Entry<byte[], byte[]> entry : serverMap.entrySet()) {<a name="line.185"></a> |
| <span class="sourceLineNo">186</span> replicaId = parseReplicaIdFromServerColumn(entry.getKey());<a name="line.186"></a> |
| <span class="sourceLineNo">187</span> if (replicaId < 0) {<a name="line.187"></a> |
| <span class="sourceLineNo">188</span> break;<a name="line.188"></a> |
| <span class="sourceLineNo">189</span> }<a name="line.189"></a> |
| <span class="sourceLineNo">190</span> HRegionLocation location = getRegionLocation(r, regionInfo, replicaId);<a name="line.190"></a> |
| <span class="sourceLineNo">191</span> // In case the region replica is newly created, it's location might be null. We usually do not<a name="line.191"></a> |
| <span class="sourceLineNo">192</span> // have HRL's in RegionLocations object with null ServerName. They are handled as null HRLs.<a name="line.192"></a> |
| <span class="sourceLineNo">193</span> if (location.getServerName() == null) {<a name="line.193"></a> |
| <span class="sourceLineNo">194</span> locations.add(null);<a name="line.194"></a> |
| <span class="sourceLineNo">195</span> } else {<a name="line.195"></a> |
| <span class="sourceLineNo">196</span> locations.add(location);<a name="line.196"></a> |
| <span class="sourceLineNo">197</span> }<a name="line.197"></a> |
| <span class="sourceLineNo">198</span> }<a name="line.198"></a> |
| <span class="sourceLineNo">199</span><a name="line.199"></a> |
| <span class="sourceLineNo">200</span> return new RegionLocations(locations);<a name="line.200"></a> |
| <span class="sourceLineNo">201</span> }<a name="line.201"></a> |
| <span class="sourceLineNo">202</span><a name="line.202"></a> |
| <span class="sourceLineNo">203</span> /**<a name="line.203"></a> |
| <span class="sourceLineNo">204</span> * Returns a {@link ServerName} from catalog table {@link Result}.<a name="line.204"></a> |
| <span class="sourceLineNo">205</span> * @param r Result to pull from<a name="line.205"></a> |
| <span class="sourceLineNo">206</span> * @return A ServerName instance or null if necessary fields not found or empty.<a name="line.206"></a> |
| <span class="sourceLineNo">207</span> */<a name="line.207"></a> |
| <span class="sourceLineNo">208</span> @Nullable<a name="line.208"></a> |
| <span class="sourceLineNo">209</span> public static ServerName getServerName(Result r, int replicaId) {<a name="line.209"></a> |
| <span class="sourceLineNo">210</span> byte[] serverColumn = getServerColumn(replicaId);<a name="line.210"></a> |
| <span class="sourceLineNo">211</span> Cell cell = r.getColumnLatestCell(HConstants.CATALOG_FAMILY, serverColumn);<a name="line.211"></a> |
| <span class="sourceLineNo">212</span> if (cell == null || cell.getValueLength() == 0) {<a name="line.212"></a> |
| <span class="sourceLineNo">213</span> return null;<a name="line.213"></a> |
| <span class="sourceLineNo">214</span> }<a name="line.214"></a> |
| <span class="sourceLineNo">215</span> String hostAndPort =<a name="line.215"></a> |
| <span class="sourceLineNo">216</span> Bytes.toString(cell.getValueArray(), cell.getValueOffset(), cell.getValueLength());<a name="line.216"></a> |
| <span class="sourceLineNo">217</span> byte[] startcodeColumn = getStartCodeColumn(replicaId);<a name="line.217"></a> |
| <span class="sourceLineNo">218</span> cell = r.getColumnLatestCell(HConstants.CATALOG_FAMILY, startcodeColumn);<a name="line.218"></a> |
| <span class="sourceLineNo">219</span> if (cell == null || cell.getValueLength() == 0) {<a name="line.219"></a> |
| <span class="sourceLineNo">220</span> return null;<a name="line.220"></a> |
| <span class="sourceLineNo">221</span> }<a name="line.221"></a> |
| <span class="sourceLineNo">222</span> try {<a name="line.222"></a> |
| <span class="sourceLineNo">223</span> return ServerName.valueOf(hostAndPort,<a name="line.223"></a> |
| <span class="sourceLineNo">224</span> Bytes.toLong(cell.getValueArray(), cell.getValueOffset(), cell.getValueLength()));<a name="line.224"></a> |
| <span class="sourceLineNo">225</span> } catch (IllegalArgumentException e) {<a name="line.225"></a> |
| <span class="sourceLineNo">226</span> LOG.error("Ignoring invalid region for server " + hostAndPort + "; cell=" + cell, e);<a name="line.226"></a> |
| <span class="sourceLineNo">227</span> return null;<a name="line.227"></a> |
| <span class="sourceLineNo">228</span> }<a name="line.228"></a> |
| <span class="sourceLineNo">229</span> }<a name="line.229"></a> |
| <span class="sourceLineNo">230</span><a name="line.230"></a> |
| <span class="sourceLineNo">231</span> /**<a name="line.231"></a> |
| <span class="sourceLineNo">232</span> * Returns the column qualifier for server column for replicaId<a name="line.232"></a> |
| <span class="sourceLineNo">233</span> * @param replicaId the replicaId of the region<a name="line.233"></a> |
| <span class="sourceLineNo">234</span> * @return a byte[] for server column qualifier<a name="line.234"></a> |
| <span class="sourceLineNo">235</span> */<a name="line.235"></a> |
| <span class="sourceLineNo">236</span> public static byte[] getServerColumn(int replicaId) {<a name="line.236"></a> |
| <span class="sourceLineNo">237</span> return replicaId == 0 ? HConstants.SERVER_QUALIFIER :<a name="line.237"></a> |
| <span class="sourceLineNo">238</span> Bytes.toBytes(HConstants.SERVER_QUALIFIER_STR + META_REPLICA_ID_DELIMITER +<a name="line.238"></a> |
| <span class="sourceLineNo">239</span> String.format(RegionInfo.REPLICA_ID_FORMAT, replicaId));<a name="line.239"></a> |
| <span class="sourceLineNo">240</span> }<a name="line.240"></a> |
| <span class="sourceLineNo">241</span><a name="line.241"></a> |
| <span class="sourceLineNo">242</span> /**<a name="line.242"></a> |
| <span class="sourceLineNo">243</span> * Returns the column qualifier for server start code column for replicaId<a name="line.243"></a> |
| <span class="sourceLineNo">244</span> * @param replicaId the replicaId of the region<a name="line.244"></a> |
| <span class="sourceLineNo">245</span> * @return a byte[] for server start code column qualifier<a name="line.245"></a> |
| <span class="sourceLineNo">246</span> */<a name="line.246"></a> |
| <span class="sourceLineNo">247</span> public static byte[] getStartCodeColumn(int replicaId) {<a name="line.247"></a> |
| <span class="sourceLineNo">248</span> return replicaId == 0 ? HConstants.STARTCODE_QUALIFIER :<a name="line.248"></a> |
| <span class="sourceLineNo">249</span> Bytes.toBytes(HConstants.STARTCODE_QUALIFIER_STR + META_REPLICA_ID_DELIMITER +<a name="line.249"></a> |
| <span class="sourceLineNo">250</span> String.format(RegionInfo.REPLICA_ID_FORMAT, replicaId));<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> /**<a name="line.253"></a> |
| <span class="sourceLineNo">254</span> * The latest seqnum that the server writing to meta observed when opening the region. E.g. the<a name="line.254"></a> |
| <span class="sourceLineNo">255</span> * seqNum when the result of {@link getServerName} was written.<a name="line.255"></a> |
| <span class="sourceLineNo">256</span> * @param r Result to pull the seqNum from<a name="line.256"></a> |
| <span class="sourceLineNo">257</span> * @return SeqNum, or HConstants.NO_SEQNUM if there's no value written.<a name="line.257"></a> |
| <span class="sourceLineNo">258</span> */<a name="line.258"></a> |
| <span class="sourceLineNo">259</span> private static long getSeqNumDuringOpen(final Result r, final int replicaId) {<a name="line.259"></a> |
| <span class="sourceLineNo">260</span> Cell cell = r.getColumnLatestCell(HConstants.CATALOG_FAMILY, getSeqNumColumn(replicaId));<a name="line.260"></a> |
| <span class="sourceLineNo">261</span> if (cell == null || cell.getValueLength() == 0) {<a name="line.261"></a> |
| <span class="sourceLineNo">262</span> return HConstants.NO_SEQNUM;<a name="line.262"></a> |
| <span class="sourceLineNo">263</span> }<a name="line.263"></a> |
| <span class="sourceLineNo">264</span> return Bytes.toLong(cell.getValueArray(), cell.getValueOffset(), cell.getValueLength());<a name="line.264"></a> |
| <span class="sourceLineNo">265</span> }<a name="line.265"></a> |
| <span class="sourceLineNo">266</span><a name="line.266"></a> |
| <span class="sourceLineNo">267</span> /**<a name="line.267"></a> |
| <span class="sourceLineNo">268</span> * Returns the column qualifier for seqNum column for replicaId<a name="line.268"></a> |
| <span class="sourceLineNo">269</span> * @param replicaId the replicaId of the region<a name="line.269"></a> |
| <span class="sourceLineNo">270</span> * @return a byte[] for seqNum column qualifier<a name="line.270"></a> |
| <span class="sourceLineNo">271</span> */<a name="line.271"></a> |
| <span class="sourceLineNo">272</span> public static byte[] getSeqNumColumn(int replicaId) {<a name="line.272"></a> |
| <span class="sourceLineNo">273</span> return replicaId == 0 ? HConstants.SEQNUM_QUALIFIER :<a name="line.273"></a> |
| <span class="sourceLineNo">274</span> Bytes.toBytes(HConstants.SEQNUM_QUALIFIER_STR + META_REPLICA_ID_DELIMITER +<a name="line.274"></a> |
| <span class="sourceLineNo">275</span> String.format(RegionInfo.REPLICA_ID_FORMAT, replicaId));<a name="line.275"></a> |
| <span class="sourceLineNo">276</span> }<a name="line.276"></a> |
| <span class="sourceLineNo">277</span><a name="line.277"></a> |
| <span class="sourceLineNo">278</span> /** The delimiter for meta columns for replicaIds &gt; 0 */<a name="line.278"></a> |
| <span class="sourceLineNo">279</span> @VisibleForTesting<a name="line.279"></a> |
| <span class="sourceLineNo">280</span> static final char META_REPLICA_ID_DELIMITER = '_';<a name="line.280"></a> |
| <span class="sourceLineNo">281</span><a name="line.281"></a> |
| <span class="sourceLineNo">282</span> /**<a name="line.282"></a> |
| <span class="sourceLineNo">283</span> * Parses the replicaId from the server column qualifier. See top of the class javadoc for the<a name="line.283"></a> |
| <span class="sourceLineNo">284</span> * actual meta layout<a name="line.284"></a> |
| <span class="sourceLineNo">285</span> * @param serverColumn the column qualifier<a name="line.285"></a> |
| <span class="sourceLineNo">286</span> * @return an int for the replicaId<a name="line.286"></a> |
| <span class="sourceLineNo">287</span> */<a name="line.287"></a> |
| <span class="sourceLineNo">288</span> @VisibleForTesting<a name="line.288"></a> |
| <span class="sourceLineNo">289</span> static int parseReplicaIdFromServerColumn(byte[] serverColumn) {<a name="line.289"></a> |
| <span class="sourceLineNo">290</span> String serverStr = Bytes.toString(serverColumn);<a name="line.290"></a> |
| <span class="sourceLineNo">291</span><a name="line.291"></a> |
| <span class="sourceLineNo">292</span> Matcher matcher = SERVER_COLUMN_PATTERN.matcher(serverStr);<a name="line.292"></a> |
| <span class="sourceLineNo">293</span> if (matcher.matches() && matcher.groupCount() > 0) {<a name="line.293"></a> |
| <span class="sourceLineNo">294</span> String group = matcher.group(1);<a name="line.294"></a> |
| <span class="sourceLineNo">295</span> if (group != null && group.length() > 0) {<a name="line.295"></a> |
| <span class="sourceLineNo">296</span> return Integer.parseInt(group.substring(1), 16);<a name="line.296"></a> |
| <span class="sourceLineNo">297</span> } else {<a name="line.297"></a> |
| <span class="sourceLineNo">298</span> return 0;<a name="line.298"></a> |
| <span class="sourceLineNo">299</span> }<a name="line.299"></a> |
| <span class="sourceLineNo">300</span> }<a name="line.300"></a> |
| <span class="sourceLineNo">301</span> return -1;<a name="line.301"></a> |
| <span class="sourceLineNo">302</span> }<a name="line.302"></a> |
| <span class="sourceLineNo">303</span><a name="line.303"></a> |
| <span class="sourceLineNo">304</span> /** Returns the row key to use for this regionInfo */<a name="line.304"></a> |
| <span class="sourceLineNo">305</span> public static byte[] getMetaKeyForRegion(RegionInfo regionInfo) {<a name="line.305"></a> |
| <span class="sourceLineNo">306</span> return RegionReplicaUtil.getRegionInfoForDefaultReplica(regionInfo).getRegionName();<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> /**<a name="line.309"></a> |
| <span class="sourceLineNo">310</span> * Returns the column qualifier for serialized region state<a name="line.310"></a> |
| <span class="sourceLineNo">311</span> * @param replicaId the replicaId of the region<a name="line.311"></a> |
| <span class="sourceLineNo">312</span> * @return a byte[] for state qualifier<a name="line.312"></a> |
| <span class="sourceLineNo">313</span> */<a name="line.313"></a> |
| <span class="sourceLineNo">314</span> @VisibleForTesting<a name="line.314"></a> |
| <span class="sourceLineNo">315</span> static byte[] getRegionStateColumn(int replicaId) {<a name="line.315"></a> |
| <span class="sourceLineNo">316</span> return replicaId == 0 ? HConstants.STATE_QUALIFIER :<a name="line.316"></a> |
| <span class="sourceLineNo">317</span> Bytes.toBytes(HConstants.STATE_QUALIFIER_STR + META_REPLICA_ID_DELIMITER +<a name="line.317"></a> |
| <span class="sourceLineNo">318</span> String.format(RegionInfo.REPLICA_ID_FORMAT, replicaId));<a name="line.318"></a> |
| <span class="sourceLineNo">319</span> }<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> * Returns the column qualifier for serialized region state<a name="line.322"></a> |
| <span class="sourceLineNo">323</span> * @param replicaId the replicaId of the region<a name="line.323"></a> |
| <span class="sourceLineNo">324</span> * @return a byte[] for sn column qualifier<a name="line.324"></a> |
| <span class="sourceLineNo">325</span> */<a name="line.325"></a> |
| <span class="sourceLineNo">326</span> public static byte[] getServerNameColumn(int replicaId) {<a name="line.326"></a> |
| <span class="sourceLineNo">327</span> return replicaId == 0 ? HConstants.SERVERNAME_QUALIFIER :<a name="line.327"></a> |
| <span class="sourceLineNo">328</span> Bytes.toBytes(HConstants.SERVERNAME_QUALIFIER_STR + META_REPLICA_ID_DELIMITER +<a name="line.328"></a> |
| <span class="sourceLineNo">329</span> String.format(RegionInfo.REPLICA_ID_FORMAT, replicaId));<a name="line.329"></a> |
| <span class="sourceLineNo">330</span> }<a name="line.330"></a> |
| <span class="sourceLineNo">331</span><a name="line.331"></a> |
| <span class="sourceLineNo">332</span> /**<a name="line.332"></a> |
| <span class="sourceLineNo">333</span> * Decode table state from META Result. Should contain cell from HConstants.TABLE_FAMILY<a name="line.333"></a> |
| <span class="sourceLineNo">334</span> * @return null if not found<a name="line.334"></a> |
| <span class="sourceLineNo">335</span> */<a name="line.335"></a> |
| <span class="sourceLineNo">336</span> @Nullable<a name="line.336"></a> |
| <span class="sourceLineNo">337</span> public static TableState getTableState(Result r) throws IOException {<a name="line.337"></a> |
| <span class="sourceLineNo">338</span> Cell cell = r.getColumnLatestCell(HConstants.TABLE_FAMILY, HConstants.TABLE_STATE_QUALIFIER);<a name="line.338"></a> |
| <span class="sourceLineNo">339</span> if (cell == null) {<a name="line.339"></a> |
| <span class="sourceLineNo">340</span> return null;<a name="line.340"></a> |
| <span class="sourceLineNo">341</span> }<a name="line.341"></a> |
| <span class="sourceLineNo">342</span> try {<a name="line.342"></a> |
| <span class="sourceLineNo">343</span> return TableState.parseFrom(TableName.valueOf(r.getRow()),<a name="line.343"></a> |
| <span class="sourceLineNo">344</span> Arrays.copyOfRange(cell.getValueArray(), cell.getValueOffset(),<a name="line.344"></a> |
| <span class="sourceLineNo">345</span> cell.getValueOffset() + cell.getValueLength()));<a name="line.345"></a> |
| <span class="sourceLineNo">346</span> } catch (DeserializationException e) {<a name="line.346"></a> |
| <span class="sourceLineNo">347</span> throw new IOException(e);<a name="line.347"></a> |
| <span class="sourceLineNo">348</span> }<a name="line.348"></a> |
| <span class="sourceLineNo">349</span> }<a name="line.349"></a> |
| <span class="sourceLineNo">350</span><a name="line.350"></a> |
| <span class="sourceLineNo">351</span> /**<a name="line.351"></a> |
| <span class="sourceLineNo">352</span> * @return Deserialized values of &lt;qualifier,regioninfo&gt; pairs taken from column values that<a name="line.352"></a> |
| <span class="sourceLineNo">353</span> * match the regex 'info:merge.*' in array of <code>cells</code>.<a name="line.353"></a> |
| <span class="sourceLineNo">354</span> */<a name="line.354"></a> |
| <span class="sourceLineNo">355</span> @Nullable<a name="line.355"></a> |
| <span class="sourceLineNo">356</span> public static Map<String, RegionInfo> getMergeRegionsWithName(Cell[] cells) {<a name="line.356"></a> |
| <span class="sourceLineNo">357</span> if (cells == null) {<a name="line.357"></a> |
| <span class="sourceLineNo">358</span> return null;<a name="line.358"></a> |
| <span class="sourceLineNo">359</span> }<a name="line.359"></a> |
| <span class="sourceLineNo">360</span> Map<String, RegionInfo> regionsToMerge = null;<a name="line.360"></a> |
| <span class="sourceLineNo">361</span> for (Cell cell : cells) {<a name="line.361"></a> |
| <span class="sourceLineNo">362</span> if (!isMergeQualifierPrefix(cell)) {<a name="line.362"></a> |
| <span class="sourceLineNo">363</span> continue;<a name="line.363"></a> |
| <span class="sourceLineNo">364</span> }<a name="line.364"></a> |
| <span class="sourceLineNo">365</span> // Ok. This cell is that of a info:merge* column.<a name="line.365"></a> |
| <span class="sourceLineNo">366</span> RegionInfo ri = RegionInfo.parseFromOrNull(cell.getValueArray(), cell.getValueOffset(),<a name="line.366"></a> |
| <span class="sourceLineNo">367</span> cell.getValueLength());<a name="line.367"></a> |
| <span class="sourceLineNo">368</span> if (ri != null) {<a name="line.368"></a> |
| <span class="sourceLineNo">369</span> if (regionsToMerge == null) {<a name="line.369"></a> |
| <span class="sourceLineNo">370</span> regionsToMerge = new LinkedHashMap<>();<a name="line.370"></a> |
| <span class="sourceLineNo">371</span> }<a name="line.371"></a> |
| <span class="sourceLineNo">372</span> regionsToMerge.put(Bytes.toString(CellUtil.cloneQualifier(cell)), ri);<a name="line.372"></a> |
| <span class="sourceLineNo">373</span> }<a name="line.373"></a> |
| <span class="sourceLineNo">374</span> }<a name="line.374"></a> |
| <span class="sourceLineNo">375</span> return regionsToMerge;<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> /**<a name="line.378"></a> |
| <span class="sourceLineNo">379</span> * @return Deserialized regioninfo values taken from column values that match the regex<a name="line.379"></a> |
| <span class="sourceLineNo">380</span> * 'info:merge.*' in array of <code>cells</code>.<a name="line.380"></a> |
| <span class="sourceLineNo">381</span> */<a name="line.381"></a> |
| <span class="sourceLineNo">382</span> @Nullable<a name="line.382"></a> |
| <span class="sourceLineNo">383</span> public static List<RegionInfo> getMergeRegions(Cell[] cells) {<a name="line.383"></a> |
| <span class="sourceLineNo">384</span> Map<String, RegionInfo> mergeRegionsWithName = getMergeRegionsWithName(cells);<a name="line.384"></a> |
| <span class="sourceLineNo">385</span> return (mergeRegionsWithName == null) ? null : new ArrayList<>(mergeRegionsWithName.values());<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> * @return True if any merge regions present in <code>cells</code>; i.e. the column in<a name="line.389"></a> |
| <span class="sourceLineNo">390</span> * <code>cell</code> matches the regex 'info:merge.*'.<a name="line.390"></a> |
| <span class="sourceLineNo">391</span> */<a name="line.391"></a> |
| <span class="sourceLineNo">392</span> public static boolean hasMergeRegions(Cell[] cells) {<a name="line.392"></a> |
| <span class="sourceLineNo">393</span> for (Cell cell : cells) {<a name="line.393"></a> |
| <span class="sourceLineNo">394</span> if (isMergeQualifierPrefix(cell)) {<a name="line.394"></a> |
| <span class="sourceLineNo">395</span> return true;<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> return false;<a name="line.398"></a> |
| <span class="sourceLineNo">399</span> }<a name="line.399"></a> |
| <span class="sourceLineNo">400</span><a name="line.400"></a> |
| <span class="sourceLineNo">401</span> /**<a name="line.401"></a> |
| <span class="sourceLineNo">402</span> * @return True if the column in <code>cell</code> matches the regex 'info:merge.*'.<a name="line.402"></a> |
| <span class="sourceLineNo">403</span> */<a name="line.403"></a> |
| <span class="sourceLineNo">404</span> public static boolean isMergeQualifierPrefix(Cell cell) {<a name="line.404"></a> |
| <span class="sourceLineNo">405</span> // Check to see if has family and that qualifier starts with the merge qualifier 'merge'<a name="line.405"></a> |
| <span class="sourceLineNo">406</span> return CellUtil.matchingFamily(cell, HConstants.CATALOG_FAMILY) &&<a name="line.406"></a> |
| <span class="sourceLineNo">407</span> PrivateCellUtil.qualifierStartsWith(cell, HConstants.MERGE_QUALIFIER_PREFIX);<a name="line.407"></a> |
| <span class="sourceLineNo">408</span> }<a name="line.408"></a> |
| <span class="sourceLineNo">409</span>}<a name="line.409"></a> |
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| </div> |
| </body> |
| </html> |
