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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 java.io.IOException;<a name="line.20"></a>
<span class="sourceLineNo">021</span>import java.util.Arrays;<a name="line.21"></a>
<span class="sourceLineNo">022</span>import java.util.Comparator;<a name="line.22"></a>
<span class="sourceLineNo">023</span>import java.util.List;<a name="line.23"></a>
<span class="sourceLineNo">024</span><a name="line.24"></a>
<span class="sourceLineNo">025</span>import org.apache.hadoop.conf.Configuration;<a name="line.25"></a>
<span class="sourceLineNo">026</span>import org.apache.hadoop.fs.FileSystem;<a name="line.26"></a>
<span class="sourceLineNo">027</span>import org.apache.hadoop.fs.Path;<a name="line.27"></a>
<span class="sourceLineNo">028</span>import org.apache.hadoop.hbase.HRegionInfo;<a name="line.28"></a>
<span class="sourceLineNo">029</span>import org.apache.hadoop.hbase.ServerName;<a name="line.29"></a>
<span class="sourceLineNo">030</span>import org.apache.hadoop.hbase.TableName;<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.RegionReplicaUtil;<a name="line.32"></a>
<span class="sourceLineNo">033</span>import org.apache.hadoop.hbase.regionserver.HRegionFileSystem;<a name="line.33"></a>
<span class="sourceLineNo">034</span>import org.apache.yetus.audience.InterfaceAudience;<a name="line.34"></a>
<span class="sourceLineNo">035</span>import org.apache.yetus.audience.InterfaceStability;<a name="line.35"></a>
<span class="sourceLineNo">036</span>import org.slf4j.Logger;<a name="line.36"></a>
<span class="sourceLineNo">037</span>import org.slf4j.LoggerFactory;<a name="line.37"></a>
<span class="sourceLineNo">038</span><a name="line.38"></a>
<span class="sourceLineNo">039</span>import org.apache.hbase.thirdparty.com.google.common.base.Joiner;<a name="line.39"></a>
<span class="sourceLineNo">040</span>import org.apache.hbase.thirdparty.com.google.common.collect.Lists;<a name="line.40"></a>
<span class="sourceLineNo">041</span><a name="line.41"></a>
<span class="sourceLineNo">042</span>/**<a name="line.42"></a>
<span class="sourceLineNo">043</span> * Maintain information about a particular region. It gathers information<a name="line.43"></a>
<span class="sourceLineNo">044</span> * from three places -- HDFS, META, and region servers.<a name="line.44"></a>
<span class="sourceLineNo">045</span> */<a name="line.45"></a>
<span class="sourceLineNo">046</span>@InterfaceAudience.Private<a name="line.46"></a>
<span class="sourceLineNo">047</span>@InterfaceStability.Evolving<a name="line.47"></a>
<span class="sourceLineNo">048</span>public class HbckRegionInfo implements KeyRange {<a name="line.48"></a>
<span class="sourceLineNo">049</span> private static final Logger LOG = LoggerFactory.getLogger(HbckRegionInfo.class.getName());<a name="line.49"></a>
<span class="sourceLineNo">050</span><a name="line.50"></a>
<span class="sourceLineNo">051</span> private MetaEntry metaEntry = null; // info in META<a name="line.51"></a>
<span class="sourceLineNo">052</span> private HdfsEntry hdfsEntry = null; // info in HDFS<a name="line.52"></a>
<span class="sourceLineNo">053</span> private List&lt;OnlineEntry&gt; deployedEntries = Lists.newArrayList(); // on Region Server<a name="line.53"></a>
<span class="sourceLineNo">054</span> private List&lt;ServerName&gt; deployedOn = Lists.newArrayList(); // info on RS's<a name="line.54"></a>
<span class="sourceLineNo">055</span> private boolean skipChecks = false; // whether to skip further checks to this region info.<a name="line.55"></a>
<span class="sourceLineNo">056</span> private boolean isMerged = false;// whether this region has already been merged into another one<a name="line.56"></a>
<span class="sourceLineNo">057</span> private int deployedReplicaId = RegionInfo.DEFAULT_REPLICA_ID;<a name="line.57"></a>
<span class="sourceLineNo">058</span> private RegionInfo primaryHRIForDeployedReplica = null;<a name="line.58"></a>
<span class="sourceLineNo">059</span><a name="line.59"></a>
<span class="sourceLineNo">060</span> public HbckRegionInfo(MetaEntry metaEntry) {<a name="line.60"></a>
<span class="sourceLineNo">061</span> this.metaEntry = metaEntry;<a name="line.61"></a>
<span class="sourceLineNo">062</span> }<a name="line.62"></a>
<span class="sourceLineNo">063</span><a name="line.63"></a>
<span class="sourceLineNo">064</span> public synchronized int getReplicaId() {<a name="line.64"></a>
<span class="sourceLineNo">065</span> return metaEntry != null? metaEntry.getReplicaId(): deployedReplicaId;<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> public synchronized void addServer(RegionInfo regionInfo, ServerName serverName) {<a name="line.68"></a>
<span class="sourceLineNo">069</span> OnlineEntry rse = new OnlineEntry(regionInfo, serverName) ;<a name="line.69"></a>
<span class="sourceLineNo">070</span> this.deployedEntries.add(rse);<a name="line.70"></a>
<span class="sourceLineNo">071</span> this.deployedOn.add(serverName);<a name="line.71"></a>
<span class="sourceLineNo">072</span> // save the replicaId that we see deployed in the cluster<a name="line.72"></a>
<span class="sourceLineNo">073</span> this.deployedReplicaId = regionInfo.getReplicaId();<a name="line.73"></a>
<span class="sourceLineNo">074</span> this.primaryHRIForDeployedReplica =<a name="line.74"></a>
<span class="sourceLineNo">075</span> RegionReplicaUtil.getRegionInfoForDefaultReplica(regionInfo);<a name="line.75"></a>
<span class="sourceLineNo">076</span> }<a name="line.76"></a>
<span class="sourceLineNo">077</span><a name="line.77"></a>
<span class="sourceLineNo">078</span> @Override<a name="line.78"></a>
<span class="sourceLineNo">079</span> public synchronized String toString() {<a name="line.79"></a>
<span class="sourceLineNo">080</span> StringBuilder sb = new StringBuilder();<a name="line.80"></a>
<span class="sourceLineNo">081</span> sb.append("{ meta =&gt; ");<a name="line.81"></a>
<span class="sourceLineNo">082</span> sb.append((metaEntry != null)? metaEntry.getRegionNameAsString() : "null");<a name="line.82"></a>
<span class="sourceLineNo">083</span> sb.append(", hdfs =&gt; " + getHdfsRegionDir());<a name="line.83"></a>
<span class="sourceLineNo">084</span> sb.append(", deployed =&gt; " + Joiner.on(", ").join(deployedEntries));<a name="line.84"></a>
<span class="sourceLineNo">085</span> sb.append(", replicaId =&gt; " + getReplicaId());<a name="line.85"></a>
<span class="sourceLineNo">086</span> sb.append(" }");<a name="line.86"></a>
<span class="sourceLineNo">087</span> return sb.toString();<a name="line.87"></a>
<span class="sourceLineNo">088</span> }<a name="line.88"></a>
<span class="sourceLineNo">089</span><a name="line.89"></a>
<span class="sourceLineNo">090</span> @Override<a name="line.90"></a>
<span class="sourceLineNo">091</span> public byte[] getStartKey() {<a name="line.91"></a>
<span class="sourceLineNo">092</span> if (this.metaEntry != null) {<a name="line.92"></a>
<span class="sourceLineNo">093</span> return this.metaEntry.getStartKey();<a name="line.93"></a>
<span class="sourceLineNo">094</span> } else if (this.hdfsEntry != null) {<a name="line.94"></a>
<span class="sourceLineNo">095</span> return this.hdfsEntry.hri.getStartKey();<a name="line.95"></a>
<span class="sourceLineNo">096</span> } else {<a name="line.96"></a>
<span class="sourceLineNo">097</span> LOG.error("Entry " + this + " has no meta or hdfs region start key.");<a name="line.97"></a>
<span class="sourceLineNo">098</span> return null;<a name="line.98"></a>
<span class="sourceLineNo">099</span> }<a name="line.99"></a>
<span class="sourceLineNo">100</span> }<a name="line.100"></a>
<span class="sourceLineNo">101</span><a name="line.101"></a>
<span class="sourceLineNo">102</span> @Override<a name="line.102"></a>
<span class="sourceLineNo">103</span> public byte[] getEndKey() {<a name="line.103"></a>
<span class="sourceLineNo">104</span> if (this.metaEntry != null) {<a name="line.104"></a>
<span class="sourceLineNo">105</span> return this.metaEntry.getEndKey();<a name="line.105"></a>
<span class="sourceLineNo">106</span> } else if (this.hdfsEntry != null) {<a name="line.106"></a>
<span class="sourceLineNo">107</span> return this.hdfsEntry.hri.getEndKey();<a name="line.107"></a>
<span class="sourceLineNo">108</span> } else {<a name="line.108"></a>
<span class="sourceLineNo">109</span> LOG.error("Entry " + this + " has no meta or hdfs region start key.");<a name="line.109"></a>
<span class="sourceLineNo">110</span> return null;<a name="line.110"></a>
<span class="sourceLineNo">111</span> }<a name="line.111"></a>
<span class="sourceLineNo">112</span> }<a name="line.112"></a>
<span class="sourceLineNo">113</span><a name="line.113"></a>
<span class="sourceLineNo">114</span> public MetaEntry getMetaEntry() {<a name="line.114"></a>
<span class="sourceLineNo">115</span> return this.metaEntry;<a name="line.115"></a>
<span class="sourceLineNo">116</span> }<a name="line.116"></a>
<span class="sourceLineNo">117</span><a name="line.117"></a>
<span class="sourceLineNo">118</span> public void setMetaEntry(MetaEntry metaEntry) {<a name="line.118"></a>
<span class="sourceLineNo">119</span> this.metaEntry = metaEntry;<a name="line.119"></a>
<span class="sourceLineNo">120</span> }<a name="line.120"></a>
<span class="sourceLineNo">121</span><a name="line.121"></a>
<span class="sourceLineNo">122</span> public HdfsEntry getHdfsEntry() {<a name="line.122"></a>
<span class="sourceLineNo">123</span> return this.hdfsEntry;<a name="line.123"></a>
<span class="sourceLineNo">124</span> }<a name="line.124"></a>
<span class="sourceLineNo">125</span><a name="line.125"></a>
<span class="sourceLineNo">126</span> public void setHdfsEntry(HdfsEntry hdfsEntry) {<a name="line.126"></a>
<span class="sourceLineNo">127</span> this.hdfsEntry = hdfsEntry;<a name="line.127"></a>
<span class="sourceLineNo">128</span> }<a name="line.128"></a>
<span class="sourceLineNo">129</span><a name="line.129"></a>
<span class="sourceLineNo">130</span> public List&lt;OnlineEntry&gt; getOnlineEntries() {<a name="line.130"></a>
<span class="sourceLineNo">131</span> return this.deployedEntries;<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> public List&lt;ServerName&gt; getDeployedOn() {<a name="line.134"></a>
<span class="sourceLineNo">135</span> return this.deployedOn;<a name="line.135"></a>
<span class="sourceLineNo">136</span> }<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> * Read the .regioninfo file from the file system. If there is no<a name="line.139"></a>
<span class="sourceLineNo">140</span> * .regioninfo, add it to the orphan hdfs region list.<a name="line.140"></a>
<span class="sourceLineNo">141</span> */<a name="line.141"></a>
<span class="sourceLineNo">142</span> public void loadHdfsRegioninfo(Configuration conf) throws IOException {<a name="line.142"></a>
<span class="sourceLineNo">143</span> Path regionDir = getHdfsRegionDir();<a name="line.143"></a>
<span class="sourceLineNo">144</span> if (regionDir == null) {<a name="line.144"></a>
<span class="sourceLineNo">145</span> if (getReplicaId() == RegionInfo.DEFAULT_REPLICA_ID) {<a name="line.145"></a>
<span class="sourceLineNo">146</span> // Log warning only for default/ primary replica with no region dir<a name="line.146"></a>
<span class="sourceLineNo">147</span> LOG.warn("No HDFS region dir found: " + this + " meta=" + metaEntry);<a name="line.147"></a>
<span class="sourceLineNo">148</span> }<a name="line.148"></a>
<span class="sourceLineNo">149</span> return;<a name="line.149"></a>
<span class="sourceLineNo">150</span> }<a name="line.150"></a>
<span class="sourceLineNo">151</span><a name="line.151"></a>
<span class="sourceLineNo">152</span> if (hdfsEntry.hri != null) {<a name="line.152"></a>
<span class="sourceLineNo">153</span> // already loaded data<a name="line.153"></a>
<span class="sourceLineNo">154</span> return;<a name="line.154"></a>
<span class="sourceLineNo">155</span> }<a name="line.155"></a>
<span class="sourceLineNo">156</span><a name="line.156"></a>
<span class="sourceLineNo">157</span> FileSystem fs = FileSystem.get(conf);<a name="line.157"></a>
<span class="sourceLineNo">158</span> RegionInfo hri = HRegionFileSystem.loadRegionInfoFileContent(fs, regionDir);<a name="line.158"></a>
<span class="sourceLineNo">159</span> LOG.debug("RegionInfo read: " + hri.toString());<a name="line.159"></a>
<span class="sourceLineNo">160</span> hdfsEntry.hri = hri;<a name="line.160"></a>
<span class="sourceLineNo">161</span> }<a name="line.161"></a>
<span class="sourceLineNo">162</span><a name="line.162"></a>
<span class="sourceLineNo">163</span> public TableName getTableName() {<a name="line.163"></a>
<span class="sourceLineNo">164</span> if (this.metaEntry != null) {<a name="line.164"></a>
<span class="sourceLineNo">165</span> return this.metaEntry.getTable();<a name="line.165"></a>
<span class="sourceLineNo">166</span> } else if (this.hdfsEntry != null) {<a name="line.166"></a>
<span class="sourceLineNo">167</span> // we are only guaranteed to have a path and not an HRI for hdfsEntry,<a name="line.167"></a>
<span class="sourceLineNo">168</span> // so we get the name from the Path<a name="line.168"></a>
<span class="sourceLineNo">169</span> Path tableDir = this.hdfsEntry.regionDir.getParent();<a name="line.169"></a>
<span class="sourceLineNo">170</span> return FSUtils.getTableName(tableDir);<a name="line.170"></a>
<span class="sourceLineNo">171</span> } else {<a name="line.171"></a>
<span class="sourceLineNo">172</span> // return the info from the first online/deployed hri<a name="line.172"></a>
<span class="sourceLineNo">173</span> for (OnlineEntry e : deployedEntries) {<a name="line.173"></a>
<span class="sourceLineNo">174</span> return e.getRegionInfo().getTable();<a name="line.174"></a>
<span class="sourceLineNo">175</span> }<a name="line.175"></a>
<span class="sourceLineNo">176</span> return null;<a name="line.176"></a>
<span class="sourceLineNo">177</span> }<a name="line.177"></a>
<span class="sourceLineNo">178</span> }<a name="line.178"></a>
<span class="sourceLineNo">179</span><a name="line.179"></a>
<span class="sourceLineNo">180</span> public String getRegionNameAsString() {<a name="line.180"></a>
<span class="sourceLineNo">181</span> if (metaEntry != null) {<a name="line.181"></a>
<span class="sourceLineNo">182</span> return metaEntry.getRegionNameAsString();<a name="line.182"></a>
<span class="sourceLineNo">183</span> } else if (hdfsEntry != null) {<a name="line.183"></a>
<span class="sourceLineNo">184</span> if (hdfsEntry.hri != null) {<a name="line.184"></a>
<span class="sourceLineNo">185</span> return hdfsEntry.hri.getRegionNameAsString();<a name="line.185"></a>
<span class="sourceLineNo">186</span> }<a name="line.186"></a>
<span class="sourceLineNo">187</span> } else {<a name="line.187"></a>
<span class="sourceLineNo">188</span> // return the info from the first online/deployed hri<a name="line.188"></a>
<span class="sourceLineNo">189</span> for (OnlineEntry e : deployedEntries) {<a name="line.189"></a>
<span class="sourceLineNo">190</span> return e.getRegionInfo().getRegionNameAsString();<a name="line.190"></a>
<span class="sourceLineNo">191</span> }<a name="line.191"></a>
<span class="sourceLineNo">192</span> }<a name="line.192"></a>
<span class="sourceLineNo">193</span> return null;<a name="line.193"></a>
<span class="sourceLineNo">194</span> }<a name="line.194"></a>
<span class="sourceLineNo">195</span><a name="line.195"></a>
<span class="sourceLineNo">196</span> public byte[] getRegionName() {<a name="line.196"></a>
<span class="sourceLineNo">197</span> if (metaEntry != null) {<a name="line.197"></a>
<span class="sourceLineNo">198</span> return metaEntry.getRegionName();<a name="line.198"></a>
<span class="sourceLineNo">199</span> } else if (hdfsEntry != null) {<a name="line.199"></a>
<span class="sourceLineNo">200</span> return hdfsEntry.hri.getRegionName();<a name="line.200"></a>
<span class="sourceLineNo">201</span> } else {<a name="line.201"></a>
<span class="sourceLineNo">202</span> // return the info from the first online/deployed hri<a name="line.202"></a>
<span class="sourceLineNo">203</span> for (OnlineEntry e : deployedEntries) {<a name="line.203"></a>
<span class="sourceLineNo">204</span> return e.getRegionInfo().getRegionName();<a name="line.204"></a>
<span class="sourceLineNo">205</span> }<a name="line.205"></a>
<span class="sourceLineNo">206</span> return null;<a name="line.206"></a>
<span class="sourceLineNo">207</span> }<a name="line.207"></a>
<span class="sourceLineNo">208</span> }<a name="line.208"></a>
<span class="sourceLineNo">209</span><a name="line.209"></a>
<span class="sourceLineNo">210</span> public RegionInfo getPrimaryHRIForDeployedReplica() {<a name="line.210"></a>
<span class="sourceLineNo">211</span> return primaryHRIForDeployedReplica;<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> public Path getHdfsRegionDir() {<a name="line.214"></a>
<span class="sourceLineNo">215</span> if (hdfsEntry == null) {<a name="line.215"></a>
<span class="sourceLineNo">216</span> return null;<a name="line.216"></a>
<span class="sourceLineNo">217</span> }<a name="line.217"></a>
<span class="sourceLineNo">218</span> return hdfsEntry.regionDir;<a name="line.218"></a>
<span class="sourceLineNo">219</span> }<a name="line.219"></a>
<span class="sourceLineNo">220</span><a name="line.220"></a>
<span class="sourceLineNo">221</span> public boolean containsOnlyHdfsEdits() {<a name="line.221"></a>
<span class="sourceLineNo">222</span> if (hdfsEntry == null) {<a name="line.222"></a>
<span class="sourceLineNo">223</span> return false;<a name="line.223"></a>
<span class="sourceLineNo">224</span> }<a name="line.224"></a>
<span class="sourceLineNo">225</span> return hdfsEntry.hdfsOnlyEdits;<a name="line.225"></a>
<span class="sourceLineNo">226</span> }<a name="line.226"></a>
<span class="sourceLineNo">227</span><a name="line.227"></a>
<span class="sourceLineNo">228</span> public boolean isHdfsRegioninfoPresent() {<a name="line.228"></a>
<span class="sourceLineNo">229</span> if (hdfsEntry == null) {<a name="line.229"></a>
<span class="sourceLineNo">230</span> return false;<a name="line.230"></a>
<span class="sourceLineNo">231</span> }<a name="line.231"></a>
<span class="sourceLineNo">232</span> return hdfsEntry.hdfsRegioninfoFilePresent;<a name="line.232"></a>
<span class="sourceLineNo">233</span> }<a name="line.233"></a>
<span class="sourceLineNo">234</span><a name="line.234"></a>
<span class="sourceLineNo">235</span> public long getModTime() {<a name="line.235"></a>
<span class="sourceLineNo">236</span> if (hdfsEntry == null) {<a name="line.236"></a>
<span class="sourceLineNo">237</span> return 0;<a name="line.237"></a>
<span class="sourceLineNo">238</span> }<a name="line.238"></a>
<span class="sourceLineNo">239</span> return hdfsEntry.regionDirModTime;<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> public RegionInfo getHdfsHRI() {<a name="line.242"></a>
<span class="sourceLineNo">243</span> if (hdfsEntry == null) {<a name="line.243"></a>
<span class="sourceLineNo">244</span> return null;<a name="line.244"></a>
<span class="sourceLineNo">245</span> }<a name="line.245"></a>
<span class="sourceLineNo">246</span> return hdfsEntry.hri;<a name="line.246"></a>
<span class="sourceLineNo">247</span> }<a name="line.247"></a>
<span class="sourceLineNo">248</span><a name="line.248"></a>
<span class="sourceLineNo">249</span> public void setSkipChecks(boolean skipChecks) {<a name="line.249"></a>
<span class="sourceLineNo">250</span> this.skipChecks = skipChecks;<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> public boolean isSkipChecks() {<a name="line.253"></a>
<span class="sourceLineNo">254</span> return skipChecks;<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> public void setMerged(boolean isMerged) {<a name="line.257"></a>
<span class="sourceLineNo">258</span> this.isMerged = isMerged;<a name="line.258"></a>
<span class="sourceLineNo">259</span> }<a name="line.259"></a>
<span class="sourceLineNo">260</span><a name="line.260"></a>
<span class="sourceLineNo">261</span> public boolean isMerged() {<a name="line.261"></a>
<span class="sourceLineNo">262</span> return this.isMerged;<a name="line.262"></a>
<span class="sourceLineNo">263</span> }<a name="line.263"></a>
<span class="sourceLineNo">264</span><a name="line.264"></a>
<span class="sourceLineNo">265</span> /**<a name="line.265"></a>
<span class="sourceLineNo">266</span> * Stores the regioninfo entries scanned from META<a name="line.266"></a>
<span class="sourceLineNo">267</span> */<a name="line.267"></a>
<span class="sourceLineNo">268</span> public static class MetaEntry extends HRegionInfo {<a name="line.268"></a>
<span class="sourceLineNo">269</span> ServerName regionServer; // server hosting this region<a name="line.269"></a>
<span class="sourceLineNo">270</span> long modTime; // timestamp of most recent modification metadata<a name="line.270"></a>
<span class="sourceLineNo">271</span> RegionInfo splitA, splitB; //split daughters<a name="line.271"></a>
<span class="sourceLineNo">272</span><a name="line.272"></a>
<span class="sourceLineNo">273</span> public MetaEntry(RegionInfo rinfo, ServerName regionServer, long modTime) {<a name="line.273"></a>
<span class="sourceLineNo">274</span> this(rinfo, regionServer, modTime, null, null);<a name="line.274"></a>
<span class="sourceLineNo">275</span> }<a name="line.275"></a>
<span class="sourceLineNo">276</span><a name="line.276"></a>
<span class="sourceLineNo">277</span> public MetaEntry(RegionInfo rinfo, ServerName regionServer, long modTime,<a name="line.277"></a>
<span class="sourceLineNo">278</span> RegionInfo splitA, RegionInfo splitB) {<a name="line.278"></a>
<span class="sourceLineNo">279</span> super(rinfo);<a name="line.279"></a>
<span class="sourceLineNo">280</span> this.regionServer = regionServer;<a name="line.280"></a>
<span class="sourceLineNo">281</span> this.modTime = modTime;<a name="line.281"></a>
<span class="sourceLineNo">282</span> this.splitA = splitA;<a name="line.282"></a>
<span class="sourceLineNo">283</span> this.splitB = splitB;<a name="line.283"></a>
<span class="sourceLineNo">284</span> }<a name="line.284"></a>
<span class="sourceLineNo">285</span><a name="line.285"></a>
<span class="sourceLineNo">286</span> public ServerName getRegionServer() {<a name="line.286"></a>
<span class="sourceLineNo">287</span> return this.regionServer;<a name="line.287"></a>
<span class="sourceLineNo">288</span> }<a name="line.288"></a>
<span class="sourceLineNo">289</span><a name="line.289"></a>
<span class="sourceLineNo">290</span> @Override<a name="line.290"></a>
<span class="sourceLineNo">291</span> public boolean equals(Object o) {<a name="line.291"></a>
<span class="sourceLineNo">292</span> boolean superEq = super.equals(o);<a name="line.292"></a>
<span class="sourceLineNo">293</span> if (!superEq) {<a name="line.293"></a>
<span class="sourceLineNo">294</span> return superEq;<a name="line.294"></a>
<span class="sourceLineNo">295</span> }<a name="line.295"></a>
<span class="sourceLineNo">296</span><a name="line.296"></a>
<span class="sourceLineNo">297</span> MetaEntry me = (MetaEntry) o;<a name="line.297"></a>
<span class="sourceLineNo">298</span> if (!regionServer.equals(me.regionServer)) {<a name="line.298"></a>
<span class="sourceLineNo">299</span> return false;<a name="line.299"></a>
<span class="sourceLineNo">300</span> }<a name="line.300"></a>
<span class="sourceLineNo">301</span> return (modTime == me.modTime);<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> @Override<a name="line.304"></a>
<span class="sourceLineNo">305</span> public int hashCode() {<a name="line.305"></a>
<span class="sourceLineNo">306</span> int hash = Arrays.hashCode(getRegionName());<a name="line.306"></a>
<span class="sourceLineNo">307</span> hash = (int) (hash ^ getRegionId());<a name="line.307"></a>
<span class="sourceLineNo">308</span> hash ^= Arrays.hashCode(getStartKey());<a name="line.308"></a>
<span class="sourceLineNo">309</span> hash ^= Arrays.hashCode(getEndKey());<a name="line.309"></a>
<span class="sourceLineNo">310</span> hash ^= Boolean.valueOf(isOffline()).hashCode();<a name="line.310"></a>
<span class="sourceLineNo">311</span> hash ^= getTable().hashCode();<a name="line.311"></a>
<span class="sourceLineNo">312</span> if (regionServer != null) {<a name="line.312"></a>
<span class="sourceLineNo">313</span> hash ^= regionServer.hashCode();<a name="line.313"></a>
<span class="sourceLineNo">314</span> }<a name="line.314"></a>
<span class="sourceLineNo">315</span> hash = (int) (hash ^ modTime);<a name="line.315"></a>
<span class="sourceLineNo">316</span> return hash;<a name="line.316"></a>
<span class="sourceLineNo">317</span> }<a name="line.317"></a>
<span class="sourceLineNo">318</span> }<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> * Stores the regioninfo entries from HDFS<a name="line.321"></a>
<span class="sourceLineNo">322</span> */<a name="line.322"></a>
<span class="sourceLineNo">323</span> public static class HdfsEntry {<a name="line.323"></a>
<span class="sourceLineNo">324</span> RegionInfo hri;<a name="line.324"></a>
<span class="sourceLineNo">325</span> Path regionDir = null;<a name="line.325"></a>
<span class="sourceLineNo">326</span> long regionDirModTime = 0;<a name="line.326"></a>
<span class="sourceLineNo">327</span> boolean hdfsRegioninfoFilePresent = false;<a name="line.327"></a>
<span class="sourceLineNo">328</span> boolean hdfsOnlyEdits = false;<a name="line.328"></a>
<span class="sourceLineNo">329</span><a name="line.329"></a>
<span class="sourceLineNo">330</span> HdfsEntry() {<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> public HdfsEntry(Path regionDir) {<a name="line.333"></a>
<span class="sourceLineNo">334</span> this.regionDir = regionDir;<a name="line.334"></a>
<span class="sourceLineNo">335</span> }<a name="line.335"></a>
<span class="sourceLineNo">336</span> }<a name="line.336"></a>
<span class="sourceLineNo">337</span><a name="line.337"></a>
<span class="sourceLineNo">338</span> /**<a name="line.338"></a>
<span class="sourceLineNo">339</span> * Stores the regioninfo retrieved from Online region servers.<a name="line.339"></a>
<span class="sourceLineNo">340</span> */<a name="line.340"></a>
<span class="sourceLineNo">341</span> static class OnlineEntry {<a name="line.341"></a>
<span class="sourceLineNo">342</span> private RegionInfo regionInfo;<a name="line.342"></a>
<span class="sourceLineNo">343</span> private ServerName serverName;<a name="line.343"></a>
<span class="sourceLineNo">344</span><a name="line.344"></a>
<span class="sourceLineNo">345</span> OnlineEntry(RegionInfo regionInfo, ServerName serverName) {<a name="line.345"></a>
<span class="sourceLineNo">346</span> this.regionInfo = regionInfo;<a name="line.346"></a>
<span class="sourceLineNo">347</span> this.serverName = serverName;<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> public RegionInfo getRegionInfo() {<a name="line.350"></a>
<span class="sourceLineNo">351</span> return regionInfo;<a name="line.351"></a>
<span class="sourceLineNo">352</span> }<a name="line.352"></a>
<span class="sourceLineNo">353</span><a name="line.353"></a>
<span class="sourceLineNo">354</span> public ServerName getServerName() {<a name="line.354"></a>
<span class="sourceLineNo">355</span> return serverName;<a name="line.355"></a>
<span class="sourceLineNo">356</span> }<a name="line.356"></a>
<span class="sourceLineNo">357</span><a name="line.357"></a>
<span class="sourceLineNo">358</span> @Override<a name="line.358"></a>
<span class="sourceLineNo">359</span> public String toString() {<a name="line.359"></a>
<span class="sourceLineNo">360</span> return serverName.toString() + ";" + regionInfo.getRegionNameAsString();<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><a name="line.363"></a>
<span class="sourceLineNo">364</span> final static Comparator&lt;HbckRegionInfo&gt; COMPARATOR = new Comparator&lt;HbckRegionInfo&gt;() {<a name="line.364"></a>
<span class="sourceLineNo">365</span> @Override<a name="line.365"></a>
<span class="sourceLineNo">366</span> public int compare(HbckRegionInfo l, HbckRegionInfo r) {<a name="line.366"></a>
<span class="sourceLineNo">367</span> if (l == r) {<a name="line.367"></a>
<span class="sourceLineNo">368</span> // same instance<a name="line.368"></a>
<span class="sourceLineNo">369</span> return 0;<a name="line.369"></a>
<span class="sourceLineNo">370</span> }<a name="line.370"></a>
<span class="sourceLineNo">371</span><a name="line.371"></a>
<span class="sourceLineNo">372</span> int tableCompare = l.getTableName().compareTo(r.getTableName());<a name="line.372"></a>
<span class="sourceLineNo">373</span> if (tableCompare != 0) {<a name="line.373"></a>
<span class="sourceLineNo">374</span> return tableCompare;<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> int startComparison = RegionSplitCalculator.BYTES_COMPARATOR.compare(<a name="line.377"></a>
<span class="sourceLineNo">378</span> l.getStartKey(), r.getStartKey());<a name="line.378"></a>
<span class="sourceLineNo">379</span> if (startComparison != 0) {<a name="line.379"></a>
<span class="sourceLineNo">380</span> return startComparison;<a name="line.380"></a>
<span class="sourceLineNo">381</span> }<a name="line.381"></a>
<span class="sourceLineNo">382</span><a name="line.382"></a>
<span class="sourceLineNo">383</span> // Special case for absolute endkey<a name="line.383"></a>
<span class="sourceLineNo">384</span> byte[] endKey = r.getEndKey();<a name="line.384"></a>
<span class="sourceLineNo">385</span> endKey = (endKey.length == 0) ? null : endKey;<a name="line.385"></a>
<span class="sourceLineNo">386</span> byte[] endKey2 = l.getEndKey();<a name="line.386"></a>
<span class="sourceLineNo">387</span> endKey2 = (endKey2.length == 0) ? null : endKey2;<a name="line.387"></a>
<span class="sourceLineNo">388</span> int endComparison = RegionSplitCalculator.BYTES_COMPARATOR.compare(<a name="line.388"></a>
<span class="sourceLineNo">389</span> endKey2, endKey);<a name="line.389"></a>
<span class="sourceLineNo">390</span><a name="line.390"></a>
<span class="sourceLineNo">391</span> if (endComparison != 0) {<a name="line.391"></a>
<span class="sourceLineNo">392</span> return endComparison;<a name="line.392"></a>
<span class="sourceLineNo">393</span> }<a name="line.393"></a>
<span class="sourceLineNo">394</span><a name="line.394"></a>
<span class="sourceLineNo">395</span> // use regionId as tiebreaker.<a name="line.395"></a>
<span class="sourceLineNo">396</span> // Null is considered after all possible values so make it bigger.<a name="line.396"></a>
<span class="sourceLineNo">397</span> if (l.getHdfsEntry() == null &amp;&amp; r.getHdfsEntry() == null) {<a name="line.397"></a>
<span class="sourceLineNo">398</span> return 0;<a name="line.398"></a>
<span class="sourceLineNo">399</span> }<a name="line.399"></a>
<span class="sourceLineNo">400</span> if (l.getHdfsEntry() == null &amp;&amp; r.getHdfsEntry() != null) {<a name="line.400"></a>
<span class="sourceLineNo">401</span> return 1;<a name="line.401"></a>
<span class="sourceLineNo">402</span> }<a name="line.402"></a>
<span class="sourceLineNo">403</span> // l.hdfsEntry must not be null<a name="line.403"></a>
<span class="sourceLineNo">404</span> if (r.getHdfsEntry() == null) {<a name="line.404"></a>
<span class="sourceLineNo">405</span> return -1;<a name="line.405"></a>
<span class="sourceLineNo">406</span> }<a name="line.406"></a>
<span class="sourceLineNo">407</span> // both l.hdfsEntry and r.hdfsEntry must not be null.<a name="line.407"></a>
<span class="sourceLineNo">408</span> return Long.compare(l.getHdfsEntry().hri.getRegionId(), r.getHdfsEntry().hri.getRegionId());<a name="line.408"></a>
<span class="sourceLineNo">409</span> }<a name="line.409"></a>
<span class="sourceLineNo">410</span> };<a name="line.410"></a>
<span class="sourceLineNo">411</span>}<a name="line.411"></a>
</pre>
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