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| <pre><span class="source-line-no">001</span><span id="line-1">/*</span> |
| <span class="source-line-no">002</span><span id="line-2"> * Licensed to the Apache Software Foundation (ASF) under one</span> |
| <span class="source-line-no">003</span><span id="line-3"> * or more contributor license agreements. See the NOTICE file</span> |
| <span class="source-line-no">004</span><span id="line-4"> * distributed with this work for additional information</span> |
| <span class="source-line-no">005</span><span id="line-5"> * regarding copyright ownership. The ASF licenses this file</span> |
| <span class="source-line-no">006</span><span id="line-6"> * to you under the Apache License, Version 2.0 (the</span> |
| <span class="source-line-no">007</span><span id="line-7"> * "License"); you may not use this file except in compliance</span> |
| <span class="source-line-no">008</span><span id="line-8"> * with the License. You may obtain a copy of the License at</span> |
| <span class="source-line-no">009</span><span id="line-9"> *</span> |
| <span class="source-line-no">010</span><span id="line-10"> * http://www.apache.org/licenses/LICENSE-2.0</span> |
| <span class="source-line-no">011</span><span id="line-11"> *</span> |
| <span class="source-line-no">012</span><span id="line-12"> * Unless required by applicable law or agreed to in writing, software</span> |
| <span class="source-line-no">013</span><span id="line-13"> * distributed under the License is distributed on an "AS IS" BASIS,</span> |
| <span class="source-line-no">014</span><span id="line-14"> * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.</span> |
| <span class="source-line-no">015</span><span id="line-15"> * See the License for the specific language governing permissions and</span> |
| <span class="source-line-no">016</span><span id="line-16"> * limitations under the License.</span> |
| <span class="source-line-no">017</span><span id="line-17"> */</span> |
| <span class="source-line-no">018</span><span id="line-18">package org.apache.hadoop.hbase.util;</span> |
| <span class="source-line-no">019</span><span id="line-19"></span> |
| <span class="source-line-no">020</span><span id="line-20">import java.io.IOException;</span> |
| <span class="source-line-no">021</span><span id="line-21">import java.util.Comparator;</span> |
| <span class="source-line-no">022</span><span id="line-22">import java.util.List;</span> |
| <span class="source-line-no">023</span><span id="line-23">import org.apache.hadoop.conf.Configuration;</span> |
| <span class="source-line-no">024</span><span id="line-24">import org.apache.hadoop.fs.FileSystem;</span> |
| <span class="source-line-no">025</span><span id="line-25">import org.apache.hadoop.fs.Path;</span> |
| <span class="source-line-no">026</span><span id="line-26">import org.apache.hadoop.hbase.ServerName;</span> |
| <span class="source-line-no">027</span><span id="line-27">import org.apache.hadoop.hbase.TableName;</span> |
| <span class="source-line-no">028</span><span id="line-28">import org.apache.hadoop.hbase.client.RegionInfo;</span> |
| <span class="source-line-no">029</span><span id="line-29">import org.apache.hadoop.hbase.client.RegionReplicaUtil;</span> |
| <span class="source-line-no">030</span><span id="line-30">import org.apache.hadoop.hbase.regionserver.HRegionFileSystem;</span> |
| <span class="source-line-no">031</span><span id="line-31">import org.apache.yetus.audience.InterfaceAudience;</span> |
| <span class="source-line-no">032</span><span id="line-32">import org.apache.yetus.audience.InterfaceStability;</span> |
| <span class="source-line-no">033</span><span id="line-33">import org.slf4j.Logger;</span> |
| <span class="source-line-no">034</span><span id="line-34">import org.slf4j.LoggerFactory;</span> |
| <span class="source-line-no">035</span><span id="line-35"></span> |
| <span class="source-line-no">036</span><span id="line-36">import org.apache.hbase.thirdparty.com.google.common.base.Joiner;</span> |
| <span class="source-line-no">037</span><span id="line-37">import org.apache.hbase.thirdparty.com.google.common.collect.Lists;</span> |
| <span class="source-line-no">038</span><span id="line-38"></span> |
| <span class="source-line-no">039</span><span id="line-39">/**</span> |
| <span class="source-line-no">040</span><span id="line-40"> * Maintain information about a particular region. It gathers information from three places -- HDFS,</span> |
| <span class="source-line-no">041</span><span id="line-41"> * META, and region servers.</span> |
| <span class="source-line-no">042</span><span id="line-42"> */</span> |
| <span class="source-line-no">043</span><span id="line-43">@InterfaceAudience.Private</span> |
| <span class="source-line-no">044</span><span id="line-44">@InterfaceStability.Evolving</span> |
| <span class="source-line-no">045</span><span id="line-45">public class HbckRegionInfo implements KeyRange {</span> |
| <span class="source-line-no">046</span><span id="line-46"> private static final Logger LOG = LoggerFactory.getLogger(HbckRegionInfo.class.getName());</span> |
| <span class="source-line-no">047</span><span id="line-47"></span> |
| <span class="source-line-no">048</span><span id="line-48"> private MetaEntry metaEntry = null; // info in META</span> |
| <span class="source-line-no">049</span><span id="line-49"> private HdfsEntry hdfsEntry = null; // info in HDFS</span> |
| <span class="source-line-no">050</span><span id="line-50"> private List<OnlineEntry> deployedEntries = Lists.newArrayList(); // on Region Server</span> |
| <span class="source-line-no">051</span><span id="line-51"> private List<ServerName> deployedOn = Lists.newArrayList(); // info on RS's</span> |
| <span class="source-line-no">052</span><span id="line-52"> private boolean skipChecks = false; // whether to skip further checks to this region info.</span> |
| <span class="source-line-no">053</span><span id="line-53"> private boolean isMerged = false;// whether this region has already been merged into another one</span> |
| <span class="source-line-no">054</span><span id="line-54"> private int deployedReplicaId = RegionInfo.DEFAULT_REPLICA_ID;</span> |
| <span class="source-line-no">055</span><span id="line-55"> private RegionInfo primaryHRIForDeployedReplica = null;</span> |
| <span class="source-line-no">056</span><span id="line-56"></span> |
| <span class="source-line-no">057</span><span id="line-57"> public HbckRegionInfo(MetaEntry metaEntry) {</span> |
| <span class="source-line-no">058</span><span id="line-58"> this.metaEntry = metaEntry;</span> |
| <span class="source-line-no">059</span><span id="line-59"> }</span> |
| <span class="source-line-no">060</span><span id="line-60"></span> |
| <span class="source-line-no">061</span><span id="line-61"> public synchronized int getReplicaId() {</span> |
| <span class="source-line-no">062</span><span id="line-62"> return metaEntry != null ? metaEntry.hri.getReplicaId() : deployedReplicaId;</span> |
| <span class="source-line-no">063</span><span id="line-63"> }</span> |
| <span class="source-line-no">064</span><span id="line-64"></span> |
| <span class="source-line-no">065</span><span id="line-65"> public synchronized void addServer(RegionInfo regionInfo, ServerName serverName) {</span> |
| <span class="source-line-no">066</span><span id="line-66"> OnlineEntry rse = new OnlineEntry(regionInfo, serverName);</span> |
| <span class="source-line-no">067</span><span id="line-67"> this.deployedEntries.add(rse);</span> |
| <span class="source-line-no">068</span><span id="line-68"> this.deployedOn.add(serverName);</span> |
| <span class="source-line-no">069</span><span id="line-69"> // save the replicaId that we see deployed in the cluster</span> |
| <span class="source-line-no">070</span><span id="line-70"> this.deployedReplicaId = regionInfo.getReplicaId();</span> |
| <span class="source-line-no">071</span><span id="line-71"> this.primaryHRIForDeployedReplica =</span> |
| <span class="source-line-no">072</span><span id="line-72"> RegionReplicaUtil.getRegionInfoForDefaultReplica(regionInfo);</span> |
| <span class="source-line-no">073</span><span id="line-73"> }</span> |
| <span class="source-line-no">074</span><span id="line-74"></span> |
| <span class="source-line-no">075</span><span id="line-75"> @Override</span> |
| <span class="source-line-no">076</span><span id="line-76"> public synchronized String toString() {</span> |
| <span class="source-line-no">077</span><span id="line-77"> StringBuilder sb = new StringBuilder();</span> |
| <span class="source-line-no">078</span><span id="line-78"> sb.append("{ meta => ");</span> |
| <span class="source-line-no">079</span><span id="line-79"> sb.append((metaEntry != null) ? metaEntry.hri.getRegionNameAsString() : "null");</span> |
| <span class="source-line-no">080</span><span id="line-80"> sb.append(", hdfs => " + getHdfsRegionDir());</span> |
| <span class="source-line-no">081</span><span id="line-81"> sb.append(", deployed => " + Joiner.on(", ").join(deployedEntries));</span> |
| <span class="source-line-no">082</span><span id="line-82"> sb.append(", replicaId => " + getReplicaId());</span> |
| <span class="source-line-no">083</span><span id="line-83"> sb.append(" }");</span> |
| <span class="source-line-no">084</span><span id="line-84"> return sb.toString();</span> |
| <span class="source-line-no">085</span><span id="line-85"> }</span> |
| <span class="source-line-no">086</span><span id="line-86"></span> |
| <span class="source-line-no">087</span><span id="line-87"> @Override</span> |
| <span class="source-line-no">088</span><span id="line-88"> public byte[] getStartKey() {</span> |
| <span class="source-line-no">089</span><span id="line-89"> if (this.metaEntry != null) {</span> |
| <span class="source-line-no">090</span><span id="line-90"> return this.metaEntry.hri.getStartKey();</span> |
| <span class="source-line-no">091</span><span id="line-91"> } else if (this.hdfsEntry != null) {</span> |
| <span class="source-line-no">092</span><span id="line-92"> return this.hdfsEntry.hri.getStartKey();</span> |
| <span class="source-line-no">093</span><span id="line-93"> } else {</span> |
| <span class="source-line-no">094</span><span id="line-94"> LOG.error("Entry " + this + " has no meta or hdfs region start key.");</span> |
| <span class="source-line-no">095</span><span id="line-95"> return null;</span> |
| <span class="source-line-no">096</span><span id="line-96"> }</span> |
| <span class="source-line-no">097</span><span id="line-97"> }</span> |
| <span class="source-line-no">098</span><span id="line-98"></span> |
| <span class="source-line-no">099</span><span id="line-99"> @Override</span> |
| <span class="source-line-no">100</span><span id="line-100"> public byte[] getEndKey() {</span> |
| <span class="source-line-no">101</span><span id="line-101"> if (this.metaEntry != null) {</span> |
| <span class="source-line-no">102</span><span id="line-102"> return this.metaEntry.hri.getEndKey();</span> |
| <span class="source-line-no">103</span><span id="line-103"> } else if (this.hdfsEntry != null) {</span> |
| <span class="source-line-no">104</span><span id="line-104"> return this.hdfsEntry.hri.getEndKey();</span> |
| <span class="source-line-no">105</span><span id="line-105"> } else {</span> |
| <span class="source-line-no">106</span><span id="line-106"> LOG.error("Entry " + this + " has no meta or hdfs region start key.");</span> |
| <span class="source-line-no">107</span><span id="line-107"> return null;</span> |
| <span class="source-line-no">108</span><span id="line-108"> }</span> |
| <span class="source-line-no">109</span><span id="line-109"> }</span> |
| <span class="source-line-no">110</span><span id="line-110"></span> |
| <span class="source-line-no">111</span><span id="line-111"> public MetaEntry getMetaEntry() {</span> |
| <span class="source-line-no">112</span><span id="line-112"> return this.metaEntry;</span> |
| <span class="source-line-no">113</span><span id="line-113"> }</span> |
| <span class="source-line-no">114</span><span id="line-114"></span> |
| <span class="source-line-no">115</span><span id="line-115"> public void setMetaEntry(MetaEntry metaEntry) {</span> |
| <span class="source-line-no">116</span><span id="line-116"> this.metaEntry = metaEntry;</span> |
| <span class="source-line-no">117</span><span id="line-117"> }</span> |
| <span class="source-line-no">118</span><span id="line-118"></span> |
| <span class="source-line-no">119</span><span id="line-119"> public HdfsEntry getHdfsEntry() {</span> |
| <span class="source-line-no">120</span><span id="line-120"> return this.hdfsEntry;</span> |
| <span class="source-line-no">121</span><span id="line-121"> }</span> |
| <span class="source-line-no">122</span><span id="line-122"></span> |
| <span class="source-line-no">123</span><span id="line-123"> public void setHdfsEntry(HdfsEntry hdfsEntry) {</span> |
| <span class="source-line-no">124</span><span id="line-124"> this.hdfsEntry = hdfsEntry;</span> |
| <span class="source-line-no">125</span><span id="line-125"> }</span> |
| <span class="source-line-no">126</span><span id="line-126"></span> |
| <span class="source-line-no">127</span><span id="line-127"> public List<OnlineEntry> getOnlineEntries() {</span> |
| <span class="source-line-no">128</span><span id="line-128"> return this.deployedEntries;</span> |
| <span class="source-line-no">129</span><span id="line-129"> }</span> |
| <span class="source-line-no">130</span><span id="line-130"></span> |
| <span class="source-line-no">131</span><span id="line-131"> public List<ServerName> getDeployedOn() {</span> |
| <span class="source-line-no">132</span><span id="line-132"> return this.deployedOn;</span> |
| <span class="source-line-no">133</span><span id="line-133"> }</span> |
| <span class="source-line-no">134</span><span id="line-134"></span> |
| <span class="source-line-no">135</span><span id="line-135"> /**</span> |
| <span class="source-line-no">136</span><span id="line-136"> * Read the .regioninfo file from the file system. If there is no .regioninfo, add it to the</span> |
| <span class="source-line-no">137</span><span id="line-137"> * orphan hdfs region list.</span> |
| <span class="source-line-no">138</span><span id="line-138"> */</span> |
| <span class="source-line-no">139</span><span id="line-139"> public void loadHdfsRegioninfo(Configuration conf) throws IOException {</span> |
| <span class="source-line-no">140</span><span id="line-140"> Path regionDir = getHdfsRegionDir();</span> |
| <span class="source-line-no">141</span><span id="line-141"> if (regionDir == null) {</span> |
| <span class="source-line-no">142</span><span id="line-142"> if (getReplicaId() == RegionInfo.DEFAULT_REPLICA_ID) {</span> |
| <span class="source-line-no">143</span><span id="line-143"> // Log warning only for default/ primary replica with no region dir</span> |
| <span class="source-line-no">144</span><span id="line-144"> LOG.warn("No HDFS region dir found: " + this + " meta=" + metaEntry);</span> |
| <span class="source-line-no">145</span><span id="line-145"> }</span> |
| <span class="source-line-no">146</span><span id="line-146"> return;</span> |
| <span class="source-line-no">147</span><span id="line-147"> }</span> |
| <span class="source-line-no">148</span><span id="line-148"></span> |
| <span class="source-line-no">149</span><span id="line-149"> if (hdfsEntry.hri != null) {</span> |
| <span class="source-line-no">150</span><span id="line-150"> // already loaded data</span> |
| <span class="source-line-no">151</span><span id="line-151"> return;</span> |
| <span class="source-line-no">152</span><span id="line-152"> }</span> |
| <span class="source-line-no">153</span><span id="line-153"></span> |
| <span class="source-line-no">154</span><span id="line-154"> FileSystem fs = FileSystem.get(conf);</span> |
| <span class="source-line-no">155</span><span id="line-155"> RegionInfo hri = HRegionFileSystem.loadRegionInfoFileContent(fs, regionDir);</span> |
| <span class="source-line-no">156</span><span id="line-156"> LOG.debug("RegionInfo read: " + hri.toString());</span> |
| <span class="source-line-no">157</span><span id="line-157"> hdfsEntry.hri = hri;</span> |
| <span class="source-line-no">158</span><span id="line-158"> }</span> |
| <span class="source-line-no">159</span><span id="line-159"></span> |
| <span class="source-line-no">160</span><span id="line-160"> public TableName getTableName() {</span> |
| <span class="source-line-no">161</span><span id="line-161"> if (this.metaEntry != null) {</span> |
| <span class="source-line-no">162</span><span id="line-162"> return this.metaEntry.hri.getTable();</span> |
| <span class="source-line-no">163</span><span id="line-163"> } else if (this.hdfsEntry != null) {</span> |
| <span class="source-line-no">164</span><span id="line-164"> // we are only guaranteed to have a path and not an HRI for hdfsEntry,</span> |
| <span class="source-line-no">165</span><span id="line-165"> // so we get the name from the Path</span> |
| <span class="source-line-no">166</span><span id="line-166"> Path tableDir = this.hdfsEntry.regionDir.getParent();</span> |
| <span class="source-line-no">167</span><span id="line-167"> return CommonFSUtils.getTableName(tableDir);</span> |
| <span class="source-line-no">168</span><span id="line-168"> } else {</span> |
| <span class="source-line-no">169</span><span id="line-169"> // return the info from the first online/deployed hri</span> |
| <span class="source-line-no">170</span><span id="line-170"> for (OnlineEntry e : deployedEntries) {</span> |
| <span class="source-line-no">171</span><span id="line-171"> return e.getRegionInfo().getTable();</span> |
| <span class="source-line-no">172</span><span id="line-172"> }</span> |
| <span class="source-line-no">173</span><span id="line-173"> return null;</span> |
| <span class="source-line-no">174</span><span id="line-174"> }</span> |
| <span class="source-line-no">175</span><span id="line-175"> }</span> |
| <span class="source-line-no">176</span><span id="line-176"></span> |
| <span class="source-line-no">177</span><span id="line-177"> public String getRegionNameAsString() {</span> |
| <span class="source-line-no">178</span><span id="line-178"> if (metaEntry != null) {</span> |
| <span class="source-line-no">179</span><span id="line-179"> return metaEntry.hri.getRegionNameAsString();</span> |
| <span class="source-line-no">180</span><span id="line-180"> } else if (hdfsEntry != null) {</span> |
| <span class="source-line-no">181</span><span id="line-181"> if (hdfsEntry.hri != null) {</span> |
| <span class="source-line-no">182</span><span id="line-182"> return hdfsEntry.hri.getRegionNameAsString();</span> |
| <span class="source-line-no">183</span><span id="line-183"> }</span> |
| <span class="source-line-no">184</span><span id="line-184"> } else {</span> |
| <span class="source-line-no">185</span><span id="line-185"> // return the info from the first online/deployed hri</span> |
| <span class="source-line-no">186</span><span id="line-186"> for (OnlineEntry e : deployedEntries) {</span> |
| <span class="source-line-no">187</span><span id="line-187"> return e.getRegionInfo().getRegionNameAsString();</span> |
| <span class="source-line-no">188</span><span id="line-188"> }</span> |
| <span class="source-line-no">189</span><span id="line-189"> }</span> |
| <span class="source-line-no">190</span><span id="line-190"> return null;</span> |
| <span class="source-line-no">191</span><span id="line-191"> }</span> |
| <span class="source-line-no">192</span><span id="line-192"></span> |
| <span class="source-line-no">193</span><span id="line-193"> public byte[] getRegionName() {</span> |
| <span class="source-line-no">194</span><span id="line-194"> if (metaEntry != null) {</span> |
| <span class="source-line-no">195</span><span id="line-195"> return metaEntry.hri.getRegionName();</span> |
| <span class="source-line-no">196</span><span id="line-196"> } else if (hdfsEntry != null) {</span> |
| <span class="source-line-no">197</span><span id="line-197"> return hdfsEntry.hri.getRegionName();</span> |
| <span class="source-line-no">198</span><span id="line-198"> } else {</span> |
| <span class="source-line-no">199</span><span id="line-199"> // return the info from the first online/deployed hri</span> |
| <span class="source-line-no">200</span><span id="line-200"> for (OnlineEntry e : deployedEntries) {</span> |
| <span class="source-line-no">201</span><span id="line-201"> return e.getRegionInfo().getRegionName();</span> |
| <span class="source-line-no">202</span><span id="line-202"> }</span> |
| <span class="source-line-no">203</span><span id="line-203"> return null;</span> |
| <span class="source-line-no">204</span><span id="line-204"> }</span> |
| <span class="source-line-no">205</span><span id="line-205"> }</span> |
| <span class="source-line-no">206</span><span id="line-206"></span> |
| <span class="source-line-no">207</span><span id="line-207"> public RegionInfo getPrimaryHRIForDeployedReplica() {</span> |
| <span class="source-line-no">208</span><span id="line-208"> return primaryHRIForDeployedReplica;</span> |
| <span class="source-line-no">209</span><span id="line-209"> }</span> |
| <span class="source-line-no">210</span><span id="line-210"></span> |
| <span class="source-line-no">211</span><span id="line-211"> public Path getHdfsRegionDir() {</span> |
| <span class="source-line-no">212</span><span id="line-212"> if (hdfsEntry == null) {</span> |
| <span class="source-line-no">213</span><span id="line-213"> return null;</span> |
| <span class="source-line-no">214</span><span id="line-214"> }</span> |
| <span class="source-line-no">215</span><span id="line-215"> return hdfsEntry.regionDir;</span> |
| <span class="source-line-no">216</span><span id="line-216"> }</span> |
| <span class="source-line-no">217</span><span id="line-217"></span> |
| <span class="source-line-no">218</span><span id="line-218"> public boolean containsOnlyHdfsEdits() {</span> |
| <span class="source-line-no">219</span><span id="line-219"> if (hdfsEntry == null) {</span> |
| <span class="source-line-no">220</span><span id="line-220"> return false;</span> |
| <span class="source-line-no">221</span><span id="line-221"> }</span> |
| <span class="source-line-no">222</span><span id="line-222"> return hdfsEntry.hdfsOnlyEdits;</span> |
| <span class="source-line-no">223</span><span id="line-223"> }</span> |
| <span class="source-line-no">224</span><span id="line-224"></span> |
| <span class="source-line-no">225</span><span id="line-225"> public boolean isHdfsRegioninfoPresent() {</span> |
| <span class="source-line-no">226</span><span id="line-226"> if (hdfsEntry == null) {</span> |
| <span class="source-line-no">227</span><span id="line-227"> return false;</span> |
| <span class="source-line-no">228</span><span id="line-228"> }</span> |
| <span class="source-line-no">229</span><span id="line-229"> return hdfsEntry.hdfsRegioninfoFilePresent;</span> |
| <span class="source-line-no">230</span><span id="line-230"> }</span> |
| <span class="source-line-no">231</span><span id="line-231"></span> |
| <span class="source-line-no">232</span><span id="line-232"> public long getModTime() {</span> |
| <span class="source-line-no">233</span><span id="line-233"> if (hdfsEntry == null) {</span> |
| <span class="source-line-no">234</span><span id="line-234"> return 0;</span> |
| <span class="source-line-no">235</span><span id="line-235"> }</span> |
| <span class="source-line-no">236</span><span id="line-236"> return hdfsEntry.regionDirModTime;</span> |
| <span class="source-line-no">237</span><span id="line-237"> }</span> |
| <span class="source-line-no">238</span><span id="line-238"></span> |
| <span class="source-line-no">239</span><span id="line-239"> public RegionInfo getHdfsHRI() {</span> |
| <span class="source-line-no">240</span><span id="line-240"> if (hdfsEntry == null) {</span> |
| <span class="source-line-no">241</span><span id="line-241"> return null;</span> |
| <span class="source-line-no">242</span><span id="line-242"> }</span> |
| <span class="source-line-no">243</span><span id="line-243"> return hdfsEntry.hri;</span> |
| <span class="source-line-no">244</span><span id="line-244"> }</span> |
| <span class="source-line-no">245</span><span id="line-245"></span> |
| <span class="source-line-no">246</span><span id="line-246"> public void setSkipChecks(boolean skipChecks) {</span> |
| <span class="source-line-no">247</span><span id="line-247"> this.skipChecks = skipChecks;</span> |
| <span class="source-line-no">248</span><span id="line-248"> }</span> |
| <span class="source-line-no">249</span><span id="line-249"></span> |
| <span class="source-line-no">250</span><span id="line-250"> public boolean isSkipChecks() {</span> |
| <span class="source-line-no">251</span><span id="line-251"> return skipChecks;</span> |
| <span class="source-line-no">252</span><span id="line-252"> }</span> |
| <span class="source-line-no">253</span><span id="line-253"></span> |
| <span class="source-line-no">254</span><span id="line-254"> public void setMerged(boolean isMerged) {</span> |
| <span class="source-line-no">255</span><span id="line-255"> this.isMerged = isMerged;</span> |
| <span class="source-line-no">256</span><span id="line-256"> }</span> |
| <span class="source-line-no">257</span><span id="line-257"></span> |
| <span class="source-line-no">258</span><span id="line-258"> public boolean isMerged() {</span> |
| <span class="source-line-no">259</span><span id="line-259"> return this.isMerged;</span> |
| <span class="source-line-no">260</span><span id="line-260"> }</span> |
| <span class="source-line-no">261</span><span id="line-261"></span> |
| <span class="source-line-no">262</span><span id="line-262"> /**</span> |
| <span class="source-line-no">263</span><span id="line-263"> * Stores the regioninfo entries scanned from META</span> |
| <span class="source-line-no">264</span><span id="line-264"> */</span> |
| <span class="source-line-no">265</span><span id="line-265"> public static class MetaEntry {</span> |
| <span class="source-line-no">266</span><span id="line-266"> RegionInfo hri;</span> |
| <span class="source-line-no">267</span><span id="line-267"> ServerName regionServer; // server hosting this region</span> |
| <span class="source-line-no">268</span><span id="line-268"> long modTime; // timestamp of most recent modification metadata</span> |
| <span class="source-line-no">269</span><span id="line-269"> RegionInfo splitA, splitB; // split daughters</span> |
| <span class="source-line-no">270</span><span id="line-270"></span> |
| <span class="source-line-no">271</span><span id="line-271"> public MetaEntry(RegionInfo rinfo, ServerName regionServer, long modTime) {</span> |
| <span class="source-line-no">272</span><span id="line-272"> this(rinfo, regionServer, modTime, null, null);</span> |
| <span class="source-line-no">273</span><span id="line-273"> }</span> |
| <span class="source-line-no">274</span><span id="line-274"></span> |
| <span class="source-line-no">275</span><span id="line-275"> public MetaEntry(RegionInfo rinfo, ServerName regionServer, long modTime, RegionInfo splitA,</span> |
| <span class="source-line-no">276</span><span id="line-276"> RegionInfo splitB) {</span> |
| <span class="source-line-no">277</span><span id="line-277"> this.hri = rinfo;</span> |
| <span class="source-line-no">278</span><span id="line-278"> this.regionServer = regionServer;</span> |
| <span class="source-line-no">279</span><span id="line-279"> this.modTime = modTime;</span> |
| <span class="source-line-no">280</span><span id="line-280"> this.splitA = splitA;</span> |
| <span class="source-line-no">281</span><span id="line-281"> this.splitB = splitB;</span> |
| <span class="source-line-no">282</span><span id="line-282"> }</span> |
| <span class="source-line-no">283</span><span id="line-283"></span> |
| <span class="source-line-no">284</span><span id="line-284"> public RegionInfo getRegionInfo() {</span> |
| <span class="source-line-no">285</span><span id="line-285"> return hri;</span> |
| <span class="source-line-no">286</span><span id="line-286"> }</span> |
| <span class="source-line-no">287</span><span id="line-287"></span> |
| <span class="source-line-no">288</span><span id="line-288"> public ServerName getRegionServer() {</span> |
| <span class="source-line-no">289</span><span id="line-289"> return this.regionServer;</span> |
| <span class="source-line-no">290</span><span id="line-290"> }</span> |
| <span class="source-line-no">291</span><span id="line-291"></span> |
| <span class="source-line-no">292</span><span id="line-292"> @Override</span> |
| <span class="source-line-no">293</span><span id="line-293"> public boolean equals(Object o) {</span> |
| <span class="source-line-no">294</span><span id="line-294"> boolean superEq = super.equals(o);</span> |
| <span class="source-line-no">295</span><span id="line-295"> if (!superEq) {</span> |
| <span class="source-line-no">296</span><span id="line-296"> return superEq;</span> |
| <span class="source-line-no">297</span><span id="line-297"> }</span> |
| <span class="source-line-no">298</span><span id="line-298"></span> |
| <span class="source-line-no">299</span><span id="line-299"> MetaEntry me = (MetaEntry) o;</span> |
| <span class="source-line-no">300</span><span id="line-300"> if (!regionServer.equals(me.regionServer)) {</span> |
| <span class="source-line-no">301</span><span id="line-301"> return false;</span> |
| <span class="source-line-no">302</span><span id="line-302"> }</span> |
| <span class="source-line-no">303</span><span id="line-303"> return (modTime == me.modTime);</span> |
| <span class="source-line-no">304</span><span id="line-304"> }</span> |
| <span class="source-line-no">305</span><span id="line-305"></span> |
| <span class="source-line-no">306</span><span id="line-306"> @Override</span> |
| <span class="source-line-no">307</span><span id="line-307"> public int hashCode() {</span> |
| <span class="source-line-no">308</span><span id="line-308"> int hash = hri.hashCode();</span> |
| <span class="source-line-no">309</span><span id="line-309"> if (regionServer != null) {</span> |
| <span class="source-line-no">310</span><span id="line-310"> hash ^= regionServer.hashCode();</span> |
| <span class="source-line-no">311</span><span id="line-311"> }</span> |
| <span class="source-line-no">312</span><span id="line-312"> hash = (int) (hash ^ modTime);</span> |
| <span class="source-line-no">313</span><span id="line-313"> return hash;</span> |
| <span class="source-line-no">314</span><span id="line-314"> }</span> |
| <span class="source-line-no">315</span><span id="line-315"> }</span> |
| <span class="source-line-no">316</span><span id="line-316"></span> |
| <span class="source-line-no">317</span><span id="line-317"> /**</span> |
| <span class="source-line-no">318</span><span id="line-318"> * Stores the regioninfo entries from HDFS</span> |
| <span class="source-line-no">319</span><span id="line-319"> */</span> |
| <span class="source-line-no">320</span><span id="line-320"> public static class HdfsEntry {</span> |
| <span class="source-line-no">321</span><span id="line-321"> RegionInfo hri;</span> |
| <span class="source-line-no">322</span><span id="line-322"> Path regionDir = null;</span> |
| <span class="source-line-no">323</span><span id="line-323"> long regionDirModTime = 0;</span> |
| <span class="source-line-no">324</span><span id="line-324"> boolean hdfsRegioninfoFilePresent = false;</span> |
| <span class="source-line-no">325</span><span id="line-325"> boolean hdfsOnlyEdits = false;</span> |
| <span class="source-line-no">326</span><span id="line-326"></span> |
| <span class="source-line-no">327</span><span id="line-327"> HdfsEntry() {</span> |
| <span class="source-line-no">328</span><span id="line-328"> }</span> |
| <span class="source-line-no">329</span><span id="line-329"></span> |
| <span class="source-line-no">330</span><span id="line-330"> public HdfsEntry(Path regionDir) {</span> |
| <span class="source-line-no">331</span><span id="line-331"> this.regionDir = regionDir;</span> |
| <span class="source-line-no">332</span><span id="line-332"> }</span> |
| <span class="source-line-no">333</span><span id="line-333"> }</span> |
| <span class="source-line-no">334</span><span id="line-334"></span> |
| <span class="source-line-no">335</span><span id="line-335"> /**</span> |
| <span class="source-line-no">336</span><span id="line-336"> * Stores the regioninfo retrieved from Online region servers.</span> |
| <span class="source-line-no">337</span><span id="line-337"> */</span> |
| <span class="source-line-no">338</span><span id="line-338"> static class OnlineEntry {</span> |
| <span class="source-line-no">339</span><span id="line-339"> private RegionInfo regionInfo;</span> |
| <span class="source-line-no">340</span><span id="line-340"> private ServerName serverName;</span> |
| <span class="source-line-no">341</span><span id="line-341"></span> |
| <span class="source-line-no">342</span><span id="line-342"> OnlineEntry(RegionInfo regionInfo, ServerName serverName) {</span> |
| <span class="source-line-no">343</span><span id="line-343"> this.regionInfo = regionInfo;</span> |
| <span class="source-line-no">344</span><span id="line-344"> this.serverName = serverName;</span> |
| <span class="source-line-no">345</span><span id="line-345"> }</span> |
| <span class="source-line-no">346</span><span id="line-346"></span> |
| <span class="source-line-no">347</span><span id="line-347"> public RegionInfo getRegionInfo() {</span> |
| <span class="source-line-no">348</span><span id="line-348"> return regionInfo;</span> |
| <span class="source-line-no">349</span><span id="line-349"> }</span> |
| <span class="source-line-no">350</span><span id="line-350"></span> |
| <span class="source-line-no">351</span><span id="line-351"> public ServerName getServerName() {</span> |
| <span class="source-line-no">352</span><span id="line-352"> return serverName;</span> |
| <span class="source-line-no">353</span><span id="line-353"> }</span> |
| <span class="source-line-no">354</span><span id="line-354"></span> |
| <span class="source-line-no">355</span><span id="line-355"> @Override</span> |
| <span class="source-line-no">356</span><span id="line-356"> public String toString() {</span> |
| <span class="source-line-no">357</span><span id="line-357"> return serverName.toString() + ";" + regionInfo.getRegionNameAsString();</span> |
| <span class="source-line-no">358</span><span id="line-358"> }</span> |
| <span class="source-line-no">359</span><span id="line-359"> }</span> |
| <span class="source-line-no">360</span><span id="line-360"></span> |
| <span class="source-line-no">361</span><span id="line-361"> final static Comparator<HbckRegionInfo> COMPARATOR = new Comparator<HbckRegionInfo>() {</span> |
| <span class="source-line-no">362</span><span id="line-362"> @Override</span> |
| <span class="source-line-no">363</span><span id="line-363"> public int compare(HbckRegionInfo l, HbckRegionInfo r) {</span> |
| <span class="source-line-no">364</span><span id="line-364"> if (l == r) {</span> |
| <span class="source-line-no">365</span><span id="line-365"> // same instance</span> |
| <span class="source-line-no">366</span><span id="line-366"> return 0;</span> |
| <span class="source-line-no">367</span><span id="line-367"> }</span> |
| <span class="source-line-no">368</span><span id="line-368"></span> |
| <span class="source-line-no">369</span><span id="line-369"> int tableCompare = l.getTableName().compareTo(r.getTableName());</span> |
| <span class="source-line-no">370</span><span id="line-370"> if (tableCompare != 0) {</span> |
| <span class="source-line-no">371</span><span id="line-371"> return tableCompare;</span> |
| <span class="source-line-no">372</span><span id="line-372"> }</span> |
| <span class="source-line-no">373</span><span id="line-373"></span> |
| <span class="source-line-no">374</span><span id="line-374"> int startComparison =</span> |
| <span class="source-line-no">375</span><span id="line-375"> RegionSplitCalculator.BYTES_COMPARATOR.compare(l.getStartKey(), r.getStartKey());</span> |
| <span class="source-line-no">376</span><span id="line-376"> if (startComparison != 0) {</span> |
| <span class="source-line-no">377</span><span id="line-377"> return startComparison;</span> |
| <span class="source-line-no">378</span><span id="line-378"> }</span> |
| <span class="source-line-no">379</span><span id="line-379"></span> |
| <span class="source-line-no">380</span><span id="line-380"> // Special case for absolute endkey</span> |
| <span class="source-line-no">381</span><span id="line-381"> byte[] endKey = r.getEndKey();</span> |
| <span class="source-line-no">382</span><span id="line-382"> endKey = (endKey.length == 0) ? null : endKey;</span> |
| <span class="source-line-no">383</span><span id="line-383"> byte[] endKey2 = l.getEndKey();</span> |
| <span class="source-line-no">384</span><span id="line-384"> endKey2 = (endKey2.length == 0) ? null : endKey2;</span> |
| <span class="source-line-no">385</span><span id="line-385"> int endComparison = RegionSplitCalculator.BYTES_COMPARATOR.compare(endKey2, endKey);</span> |
| <span class="source-line-no">386</span><span id="line-386"></span> |
| <span class="source-line-no">387</span><span id="line-387"> if (endComparison != 0) {</span> |
| <span class="source-line-no">388</span><span id="line-388"> return endComparison;</span> |
| <span class="source-line-no">389</span><span id="line-389"> }</span> |
| <span class="source-line-no">390</span><span id="line-390"></span> |
| <span class="source-line-no">391</span><span id="line-391"> // use regionId as tiebreaker.</span> |
| <span class="source-line-no">392</span><span id="line-392"> // Null is considered after all possible values so make it bigger.</span> |
| <span class="source-line-no">393</span><span id="line-393"> if (l.getHdfsEntry() == null && r.getHdfsEntry() == null) {</span> |
| <span class="source-line-no">394</span><span id="line-394"> return 0;</span> |
| <span class="source-line-no">395</span><span id="line-395"> }</span> |
| <span class="source-line-no">396</span><span id="line-396"> if (l.getHdfsEntry() == null && r.getHdfsEntry() != null) {</span> |
| <span class="source-line-no">397</span><span id="line-397"> return 1;</span> |
| <span class="source-line-no">398</span><span id="line-398"> }</span> |
| <span class="source-line-no">399</span><span id="line-399"> // l.hdfsEntry must not be null</span> |
| <span class="source-line-no">400</span><span id="line-400"> if (r.getHdfsEntry() == null) {</span> |
| <span class="source-line-no">401</span><span id="line-401"> return -1;</span> |
| <span class="source-line-no">402</span><span id="line-402"> }</span> |
| <span class="source-line-no">403</span><span id="line-403"> // both l.hdfsEntry and r.hdfsEntry must not be null.</span> |
| <span class="source-line-no">404</span><span id="line-404"> return Long.compare(l.getHdfsEntry().hri.getRegionId(), r.getHdfsEntry().hri.getRegionId());</span> |
| <span class="source-line-no">405</span><span id="line-405"> }</span> |
| <span class="source-line-no">406</span><span id="line-406"> };</span> |
| <span class="source-line-no">407</span><span id="line-407">}</span> |
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| </div> |
| </main> |
| </body> |
| </html> |
