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http://git-wip-us.apache.org/repos/asf/hbase-site/blob/14db89d7/devapidocs/src-html/org/apache/hadoop/hbase/RSGroupTableAccessor.html ---------------------------------------------------------------------- diff --git a/devapidocs/src-html/org/apache/hadoop/hbase/RSGroupTableAccessor.html b/devapidocs/src-html/org/apache/hadoop/hbase/RSGroupTableAccessor.html new file mode 100644 index 0000000..1c90831 --- /dev/null +++ b/devapidocs/src-html/org/apache/hadoop/hbase/RSGroupTableAccessor.html @@ -0,0 +1,154 @@ +<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN" "http://www.w3.org/TR/html4/loose.dtd";> +<html lang="en"> +<head> +<title>Source code</title> +<link rel="stylesheet" type="text/css" href="../../../../../stylesheet.css" title="Style"> +</head> +<body> +<div class="sourceContainer"> +<pre><span class="sourceLineNo">001</span>/**<a name="line.1"></a> +<span class="sourceLineNo">002</span> *<a name="line.2"></a> +<span class="sourceLineNo">003</span> * Licensed to the Apache Software Foundation (ASF) under one<a name="line.3"></a> +<span class="sourceLineNo">004</span> * or more contributor license agreements. See the NOTICE file<a name="line.4"></a> +<span class="sourceLineNo">005</span> * distributed with this work for additional information<a name="line.5"></a> +<span class="sourceLineNo">006</span> * regarding copyright ownership. The ASF licenses this file<a name="line.6"></a> +<span class="sourceLineNo">007</span> * to you under the Apache License, Version 2.0 (the<a name="line.7"></a> +<span class="sourceLineNo">008</span> * "License"); you may not use this file except in compliance<a name="line.8"></a> +<span class="sourceLineNo">009</span> * with the License. You may obtain a copy of the License at<a name="line.9"></a> +<span class="sourceLineNo">010</span> *<a name="line.10"></a> +<span class="sourceLineNo">011</span> * http://www.apache.org/licenses/LICENSE-2.0<a name="line.11"></a> +<span class="sourceLineNo">012</span> *<a name="line.12"></a> +<span class="sourceLineNo">013</span> * Unless required by applicable law or agreed to in writing, software<a name="line.13"></a> +<span class="sourceLineNo">014</span> * distributed under the License is distributed on an "AS IS" BASIS,<a name="line.14"></a> +<span class="sourceLineNo">015</span> * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.<a name="line.15"></a> +<span class="sourceLineNo">016</span> * See the License for the specific language governing permissions and<a name="line.16"></a> +<span class="sourceLineNo">017</span> * limitations under the License.<a name="line.17"></a> +<span class="sourceLineNo">018</span> */<a name="line.18"></a> +<span class="sourceLineNo">019</span>package org.apache.hadoop.hbase;<a name="line.19"></a> +<span class="sourceLineNo">020</span><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.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.hbase.client.Connection;<a name="line.25"></a> +<span class="sourceLineNo">026</span>import org.apache.hadoop.hbase.client.Get;<a name="line.26"></a> +<span class="sourceLineNo">027</span>import org.apache.hadoop.hbase.client.Result;<a name="line.27"></a> +<span class="sourceLineNo">028</span>import org.apache.hadoop.hbase.client.Scan;<a name="line.28"></a> +<span class="sourceLineNo">029</span>import org.apache.hadoop.hbase.client.Table;<a name="line.29"></a> +<span class="sourceLineNo">030</span>import org.apache.hadoop.hbase.protobuf.ProtobufUtil;<a name="line.30"></a> +<span class="sourceLineNo">031</span>import org.apache.hadoop.hbase.protobuf.generated.RSGroupProtos;<a name="line.31"></a> +<span class="sourceLineNo">032</span>import org.apache.hadoop.hbase.rsgroup.RSGroupInfo;<a name="line.32"></a> +<span class="sourceLineNo">033</span>import org.apache.hadoop.hbase.util.Bytes;<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><a name="line.35"></a> +<span class="sourceLineNo">036</span>/**<a name="line.36"></a> +<span class="sourceLineNo">037</span> * Read rs group information from <code>hbase:rsgroup</code>.<a name="line.37"></a> +<span class="sourceLineNo">038</span> */<a name="line.38"></a> +<span class="sourceLineNo">039</span>@InterfaceAudience.Private<a name="line.39"></a> +<span class="sourceLineNo">040</span>public final class RSGroupTableAccessor {<a name="line.40"></a> +<span class="sourceLineNo">041</span><a name="line.41"></a> +<span class="sourceLineNo">042</span> //Assigned before user tables<a name="line.42"></a> +<span class="sourceLineNo">043</span> private static final TableName RSGROUP_TABLE_NAME =<a name="line.43"></a> +<span class="sourceLineNo">044</span> TableName.valueOf(NamespaceDescriptor.SYSTEM_NAMESPACE_NAME_STR, "rsgroup");<a name="line.44"></a> +<span class="sourceLineNo">045</span> private static final byte[] META_FAMILY_BYTES = Bytes.toBytes("m");<a name="line.45"></a> +<span class="sourceLineNo">046</span> private static final byte[] META_QUALIFIER_BYTES = Bytes.toBytes("i");<a name="line.46"></a> +<span class="sourceLineNo">047</span><a name="line.47"></a> +<span class="sourceLineNo">048</span> public static List<RSGroupInfo> getAllRSGroupInfo(Connection connection)<a name="line.48"></a> +<span class="sourceLineNo">049</span> throws IOException {<a name="line.49"></a> +<span class="sourceLineNo">050</span> try (Table rsGroupTable = connection.getTable(RSGROUP_TABLE_NAME)) {<a name="line.50"></a> +<span class="sourceLineNo">051</span> List<RSGroupInfo> rsGroupInfos = new ArrayList<>();<a name="line.51"></a> +<span class="sourceLineNo">052</span> for (Result result : rsGroupTable.getScanner(new Scan())) {<a name="line.52"></a> +<span class="sourceLineNo">053</span> RSGroupInfo rsGroupInfo = getRSGroupInfo(result);<a name="line.53"></a> +<span class="sourceLineNo">054</span> if (rsGroupInfo != null) {<a name="line.54"></a> +<span class="sourceLineNo">055</span> rsGroupInfos.add(rsGroupInfo);<a name="line.55"></a> +<span class="sourceLineNo">056</span> }<a name="line.56"></a> +<span class="sourceLineNo">057</span> }<a name="line.57"></a> +<span class="sourceLineNo">058</span> return rsGroupInfos;<a name="line.58"></a> +<span class="sourceLineNo">059</span> }<a name="line.59"></a> +<span class="sourceLineNo">060</span> }<a name="line.60"></a> +<span class="sourceLineNo">061</span><a name="line.61"></a> +<span class="sourceLineNo">062</span> private static RSGroupInfo getRSGroupInfo(Result result) throws IOException {<a name="line.62"></a> +<span class="sourceLineNo">063</span> byte[] rsGroupInfo = result.getValue(META_FAMILY_BYTES, META_QUALIFIER_BYTES);<a name="line.63"></a> +<span class="sourceLineNo">064</span> if (rsGroupInfo == null) {<a name="line.64"></a> +<span class="sourceLineNo">065</span> return null;<a name="line.65"></a> +<span class="sourceLineNo">066</span> }<a name="line.66"></a> +<span class="sourceLineNo">067</span> RSGroupProtos.RSGroupInfo proto =<a name="line.67"></a> +<span class="sourceLineNo">068</span> RSGroupProtos.RSGroupInfo.parseFrom(rsGroupInfo);<a name="line.68"></a> +<span class="sourceLineNo">069</span> return ProtobufUtil.toGroupInfo(proto);<a name="line.69"></a> +<span class="sourceLineNo">070</span> }<a name="line.70"></a> +<span class="sourceLineNo">071</span><a name="line.71"></a> +<span class="sourceLineNo">072</span> public static RSGroupInfo getRSGroupInfo(Connection connection, byte[] rsGroupName)<a name="line.72"></a> +<span class="sourceLineNo">073</span> throws IOException {<a name="line.73"></a> +<span class="sourceLineNo">074</span> try (Table rsGroupTable = connection.getTable(RSGROUP_TABLE_NAME)){<a name="line.74"></a> +<span class="sourceLineNo">075</span> Result result = rsGroupTable.get(new Get(rsGroupName));<a name="line.75"></a> +<span class="sourceLineNo">076</span> return getRSGroupInfo(result);<a name="line.76"></a> +<span class="sourceLineNo">077</span> }<a name="line.77"></a> +<span class="sourceLineNo">078</span> }<a name="line.78"></a> +<span class="sourceLineNo">079</span><a name="line.79"></a> +<span class="sourceLineNo">080</span> private RSGroupTableAccessor() {<a name="line.80"></a> +<span class="sourceLineNo">081</span> }<a name="line.81"></a> +<span class="sourceLineNo">082</span>}<a name="line.82"></a> + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + +</pre> +</div> +</body> +</html> http://git-wip-us.apache.org/repos/asf/hbase-site/blob/14db89d7/devapidocs/src-html/org/apache/hadoop/hbase/Version.html ---------------------------------------------------------------------- diff --git a/devapidocs/src-html/org/apache/hadoop/hbase/Version.html b/devapidocs/src-html/org/apache/hadoop/hbase/Version.html index 0ae2a2c..f7b1c22 100644 --- a/devapidocs/src-html/org/apache/hadoop/hbase/Version.html +++ b/devapidocs/src-html/org/apache/hadoop/hbase/Version.html @@ -16,11 +16,11 @@ <span class="sourceLineNo">008</span>@InterfaceAudience.Private<a name="line.8"></a> <span class="sourceLineNo">009</span>public class Version {<a name="line.9"></a> <span class="sourceLineNo">010</span> public static final String version = "3.0.0-SNAPSHOT";<a name="line.10"></a> -<span class="sourceLineNo">011</span> public static final String revision = 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class="sourceLineNo">181</span> // TODO: Should these executors be daemon threads?<a name="line.181"></a> +<span class="sourceLineNo">181</span> tfb.setDaemon(true);<a name="line.181"></a> <span class="sourceLineNo">182</span> this.threadPoolExecutor.setThreadFactory(tfb.build());<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> http://git-wip-us.apache.org/repos/asf/hbase-site/blob/14db89d7/devapidocs/src-html/org/apache/hadoop/hbase/executor/ExecutorService.TrackingThreadPoolExecutor.html ---------------------------------------------------------------------- diff --git a/devapidocs/src-html/org/apache/hadoop/hbase/executor/ExecutorService.TrackingThreadPoolExecutor.html b/devapidocs/src-html/org/apache/hadoop/hbase/executor/ExecutorService.TrackingThreadPoolExecutor.html index fb8c9ee..49f081b 100644 --- a/devapidocs/src-html/org/apache/hadoop/hbase/executor/ExecutorService.TrackingThreadPoolExecutor.html +++ b/devapidocs/src-html/org/apache/hadoop/hbase/executor/ExecutorService.TrackingThreadPoolExecutor.html @@ -186,7 +186,7 @@ <span class="sourceLineNo">178</span> // name the threads for this threadpool<a name="line.178"></a> <span class="sourceLineNo">179</span> ThreadFactoryBuilder tfb = new ThreadFactoryBuilder();<a name="line.179"></a> <span class="sourceLineNo">180</span> tfb.setNameFormat(this.name + "-%d");<a name="line.180"></a> -<span class="sourceLineNo">181</span> // TODO: Should these executors be daemon threads?<a name="line.181"></a> +<span class="sourceLineNo">181</span> tfb.setDaemon(true);<a name="line.181"></a> <span class="sourceLineNo">182</span> this.threadPoolExecutor.setThreadFactory(tfb.build());<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> http://git-wip-us.apache.org/repos/asf/hbase-site/blob/14db89d7/devapidocs/src-html/org/apache/hadoop/hbase/executor/ExecutorService.html ---------------------------------------------------------------------- diff --git a/devapidocs/src-html/org/apache/hadoop/hbase/executor/ExecutorService.html b/devapidocs/src-html/org/apache/hadoop/hbase/executor/ExecutorService.html index fb8c9ee..49f081b 100644 --- a/devapidocs/src-html/org/apache/hadoop/hbase/executor/ExecutorService.html +++ b/devapidocs/src-html/org/apache/hadoop/hbase/executor/ExecutorService.html @@ -186,7 +186,7 @@ <span class="sourceLineNo">178</span> // name the threads for this threadpool<a name="line.178"></a> <span class="sourceLineNo">179</span> ThreadFactoryBuilder tfb = new ThreadFactoryBuilder();<a name="line.179"></a> <span class="sourceLineNo">180</span> tfb.setNameFormat(this.name + "-%d");<a name="line.180"></a> -<span class="sourceLineNo">181</span> // TODO: Should these executors be daemon threads?<a name="line.181"></a> +<span class="sourceLineNo">181</span> tfb.setDaemon(true);<a name="line.181"></a> <span class="sourceLineNo">182</span> this.threadPoolExecutor.setThreadFactory(tfb.build());<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> http://git-wip-us.apache.org/repos/asf/hbase-site/blob/14db89d7/devapidocs/src-html/org/apache/hadoop/hbase/master/cleaner/HFileCleaner.HFileDeleteTask.html ---------------------------------------------------------------------- diff --git a/devapidocs/src-html/org/apache/hadoop/hbase/master/cleaner/HFileCleaner.HFileDeleteTask.html b/devapidocs/src-html/org/apache/hadoop/hbase/master/cleaner/HFileCleaner.HFileDeleteTask.html index 38da617..789c212 100644 --- a/devapidocs/src-html/org/apache/hadoop/hbase/master/cleaner/HFileCleaner.HFileDeleteTask.html +++ b/devapidocs/src-html/org/apache/hadoop/hbase/master/cleaner/HFileCleaner.HFileDeleteTask.html @@ -239,7 +239,7 @@ <span class="sourceLineNo">231</span> try {<a name="line.231"></a> <span class="sourceLineNo">232</span> task = queue.take();<a name="line.232"></a> <span class="sourceLineNo">233</span> } catch (InterruptedException e) {<a name="line.233"></a> -<span class="sourceLineNo">234</span> LOG.debug("Interrupted while trying to take a task from queue", e);<a name="line.234"></a> +<span class="sourceLineNo">234</span> LOG.trace("Interrupted while trying to take a task from queue", e);<a name="line.234"></a> <span class="sourceLineNo">235</span> break;<a name="line.235"></a> <span class="sourceLineNo">236</span> }<a name="line.236"></a> <span class="sourceLineNo">237</span> if (task != null) {<a name="line.237"></a> @@ -453,7 +453,15 @@ <span class="sourceLineNo">445</span> }<a name="line.445"></a> <span class="sourceLineNo">446</span> return updated;<a name="line.446"></a> <span class="sourceLineNo">447</span> }<a name="line.447"></a> -<span class="sourceLineNo">448</span>}<a name="line.448"></a> +<span class="sourceLineNo">448</span><a name="line.448"></a> +<span class="sourceLineNo">449</span> @Override<a name="line.449"></a> +<span class="sourceLineNo">450</span> public synchronized void cancel(boolean mayInterruptIfRunning) {<a name="line.450"></a> +<span class="sourceLineNo">451</span> super.cancel(mayInterruptIfRunning);<a name="line.451"></a> +<span class="sourceLineNo">452</span> for (Thread t: this.threads) {<a name="line.452"></a> +<span class="sourceLineNo">453</span> t.interrupt();<a name="line.453"></a> +<span class="sourceLineNo">454</span> }<a name="line.454"></a> +<span class="sourceLineNo">455</span> }<a name="line.455"></a> +<span class="sourceLineNo">456</span>}<a name="line.456"></a> http://git-wip-us.apache.org/repos/asf/hbase-site/blob/14db89d7/devapidocs/src-html/org/apache/hadoop/hbase/master/cleaner/HFileCleaner.html ---------------------------------------------------------------------- diff --git a/devapidocs/src-html/org/apache/hadoop/hbase/master/cleaner/HFileCleaner.html b/devapidocs/src-html/org/apache/hadoop/hbase/master/cleaner/HFileCleaner.html index 38da617..789c212 100644 --- a/devapidocs/src-html/org/apache/hadoop/hbase/master/cleaner/HFileCleaner.html +++ b/devapidocs/src-html/org/apache/hadoop/hbase/master/cleaner/HFileCleaner.html @@ -239,7 +239,7 @@ <span class="sourceLineNo">231</span> try {<a name="line.231"></a> <span class="sourceLineNo">232</span> task = queue.take();<a name="line.232"></a> <span class="sourceLineNo">233</span> } catch (InterruptedException e) {<a name="line.233"></a> -<span class="sourceLineNo">234</span> LOG.debug("Interrupted while trying to take a task from queue", e);<a name="line.234"></a> +<span class="sourceLineNo">234</span> LOG.trace("Interrupted while trying to take a task from queue", e);<a name="line.234"></a> <span class="sourceLineNo">235</span> break;<a name="line.235"></a> <span class="sourceLineNo">236</span> }<a name="line.236"></a> <span class="sourceLineNo">237</span> if (task != null) {<a name="line.237"></a> @@ -453,7 +453,15 @@ <span class="sourceLineNo">445</span> }<a name="line.445"></a> <span class="sourceLineNo">446</span> return updated;<a name="line.446"></a> <span class="sourceLineNo">447</span> }<a name="line.447"></a> -<span class="sourceLineNo">448</span>}<a name="line.448"></a> +<span class="sourceLineNo">448</span><a name="line.448"></a> +<span class="sourceLineNo">449</span> @Override<a name="line.449"></a> +<span class="sourceLineNo">450</span> public synchronized void cancel(boolean mayInterruptIfRunning) {<a name="line.450"></a> +<span class="sourceLineNo">451</span> super.cancel(mayInterruptIfRunning);<a name="line.451"></a> +<span class="sourceLineNo">452</span> for (Thread t: this.threads) {<a name="line.452"></a> +<span class="sourceLineNo">453</span> t.interrupt();<a name="line.453"></a> +<span class="sourceLineNo">454</span> }<a name="line.454"></a> +<span class="sourceLineNo">455</span> }<a name="line.455"></a> +<span class="sourceLineNo">456</span>}<a name="line.456"></a> http://git-wip-us.apache.org/repos/asf/hbase-site/blob/14db89d7/devapidocs/src-html/org/apache/hadoop/hbase/master/procedure/RecoverMetaProcedure.html ---------------------------------------------------------------------- diff --git a/devapidocs/src-html/org/apache/hadoop/hbase/master/procedure/RecoverMetaProcedure.html b/devapidocs/src-html/org/apache/hadoop/hbase/master/procedure/RecoverMetaProcedure.html index be93630..a008192 100644 --- a/devapidocs/src-html/org/apache/hadoop/hbase/master/procedure/RecoverMetaProcedure.html +++ b/devapidocs/src-html/org/apache/hadoop/hbase/master/procedure/RecoverMetaProcedure.html @@ -36,233 +36,261 @@ <span class="sourceLineNo">028</span>import org.apache.hadoop.hbase.client.RegionReplicaUtil;<a name="line.28"></a> <span class="sourceLineNo">029</span>import org.apache.hadoop.hbase.master.MasterServices;<a name="line.29"></a> <span class="sourceLineNo">030</span>import org.apache.hadoop.hbase.master.assignment.AssignProcedure;<a name="line.30"></a> -<span class="sourceLineNo">031</span>import org.apache.hadoop.hbase.procedure2.ProcedureStateSerializer;<a name="line.31"></a> -<span class="sourceLineNo">032</span>import org.apache.hadoop.hbase.procedure2.ProcedureSuspendedException;<a name="line.32"></a> -<span class="sourceLineNo">033</span>import org.apache.hadoop.hbase.procedure2.ProcedureYieldException;<a name="line.33"></a> -<span class="sourceLineNo">034</span>import org.apache.hadoop.hbase.procedure2.StateMachineProcedure;<a name="line.34"></a> -<span class="sourceLineNo">035</span>import org.apache.hadoop.hbase.zookeeper.MetaTableLocator;<a name="line.35"></a> -<span class="sourceLineNo">036</span>import org.apache.zookeeper.KeeperException;<a name="line.36"></a> -<span class="sourceLineNo">037</span>import org.slf4j.Logger;<a name="line.37"></a> -<span class="sourceLineNo">038</span>import org.slf4j.LoggerFactory;<a name="line.38"></a> -<span class="sourceLineNo">039</span><a name="line.39"></a> -<span class="sourceLineNo">040</span>import org.apache.hbase.thirdparty.com.google.common.base.Preconditions;<a name="line.40"></a> -<span class="sourceLineNo">041</span>import org.apache.hadoop.hbase.shaded.protobuf.ProtobufUtil;<a name="line.41"></a> -<span class="sourceLineNo">042</span>import org.apache.hadoop.hbase.shaded.protobuf.generated.MasterProcedureProtos;<a name="line.42"></a> -<span class="sourceLineNo">043</span>import org.apache.hadoop.hbase.shaded.protobuf.generated.MasterProcedureProtos.RecoverMetaState;<a name="line.43"></a> -<span class="sourceLineNo">044</span><a name="line.44"></a> -<span class="sourceLineNo">045</span><a name="line.45"></a> -<span class="sourceLineNo">046</span>/**<a name="line.46"></a> -<span class="sourceLineNo">047</span> * This procedure recovers meta from prior shutdown/ crash of a server, and brings meta online by<a name="line.47"></a> -<span class="sourceLineNo">048</span> * assigning meta region/s. Any place where meta is accessed and requires meta to be online, need to<a name="line.48"></a> -<span class="sourceLineNo">049</span> * submit this procedure instead of duplicating steps to recover meta in the code.<a name="line.49"></a> -<span class="sourceLineNo">050</span> */<a name="line.50"></a> -<span class="sourceLineNo">051</span>public class RecoverMetaProcedure<a name="line.51"></a> -<span class="sourceLineNo">052</span> extends StateMachineProcedure<MasterProcedureEnv, MasterProcedureProtos.RecoverMetaState><a name="line.52"></a> -<span class="sourceLineNo">053</span> implements TableProcedureInterface {<a name="line.53"></a> -<span class="sourceLineNo">054</span> private static final Logger LOG = LoggerFactory.getLogger(RecoverMetaProcedure.class);<a name="line.54"></a> -<span class="sourceLineNo">055</span><a name="line.55"></a> -<span class="sourceLineNo">056</span> private ServerName failedMetaServer;<a name="line.56"></a> -<span class="sourceLineNo">057</span> private boolean shouldSplitWal;<a name="line.57"></a> -<span class="sourceLineNo">058</span> private int replicaId;<a name="line.58"></a> -<span class="sourceLineNo">059</span><a name="line.59"></a> -<span class="sourceLineNo">060</span> private final ProcedurePrepareLatch syncLatch;<a name="line.60"></a> -<span class="sourceLineNo">061</span> private MasterServices master;<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> * Call this constructor to queue up a {@link RecoverMetaProcedure} in response to meta<a name="line.64"></a> -<span class="sourceLineNo">065</span> * carrying server crash<a name="line.65"></a> -<span class="sourceLineNo">066</span> * @param failedMetaServer failed/ crashed region server that was carrying meta<a name="line.66"></a> -<span class="sourceLineNo">067</span> * @param shouldSplitLog split log file of meta region<a name="line.67"></a> -<span class="sourceLineNo">068</span> */<a name="line.68"></a> -<span class="sourceLineNo">069</span> public RecoverMetaProcedure(final ServerName failedMetaServer, final boolean shouldSplitLog) {<a name="line.69"></a> -<span class="sourceLineNo">070</span> this(failedMetaServer, shouldSplitLog, null);<a name="line.70"></a> -<span class="sourceLineNo">071</span> }<a name="line.71"></a> -<span class="sourceLineNo">072</span><a name="line.72"></a> -<span class="sourceLineNo">073</span> /**<a name="line.73"></a> -<span class="sourceLineNo">074</span> * Constructor with latch, for blocking/ sync usage<a name="line.74"></a> -<span class="sourceLineNo">075</span> */<a name="line.75"></a> -<span class="sourceLineNo">076</span> public RecoverMetaProcedure(final ServerName failedMetaServer, final boolean shouldSplitLog,<a name="line.76"></a> -<span class="sourceLineNo">077</span> final ProcedurePrepareLatch latch) {<a name="line.77"></a> -<span class="sourceLineNo">078</span> this.failedMetaServer = failedMetaServer;<a name="line.78"></a> -<span class="sourceLineNo">079</span> this.shouldSplitWal = shouldSplitLog;<a name="line.79"></a> -<span class="sourceLineNo">080</span> this.replicaId = RegionInfo.DEFAULT_REPLICA_ID;<a name="line.80"></a> -<span class="sourceLineNo">081</span> this.syncLatch = latch;<a name="line.81"></a> -<span class="sourceLineNo">082</span> }<a name="line.82"></a> -<span class="sourceLineNo">083</span><a name="line.83"></a> -<span class="sourceLineNo">084</span> /**<a name="line.84"></a> -<span class="sourceLineNo">085</span> * This constructor is also used when deserializing from a procedure store; we'll construct one<a name="line.85"></a> -<span class="sourceLineNo">086</span> * of these then call #deserializeStateData(InputStream). Do not use directly.<a name="line.86"></a> -<span class="sourceLineNo">087</span> */<a name="line.87"></a> -<span class="sourceLineNo">088</span> public RecoverMetaProcedure() {<a name="line.88"></a> -<span class="sourceLineNo">089</span> this(null, false);<a name="line.89"></a> -<span class="sourceLineNo">090</span> }<a name="line.90"></a> -<span class="sourceLineNo">091</span><a name="line.91"></a> -<span class="sourceLineNo">092</span> @Override<a name="line.92"></a> -<span class="sourceLineNo">093</span> protected Flow executeFromState(MasterProcedureEnv env,<a name="line.93"></a> -<span class="sourceLineNo">094</span> MasterProcedureProtos.RecoverMetaState state)<a name="line.94"></a> -<span class="sourceLineNo">095</span> throws ProcedureSuspendedException, ProcedureYieldException, InterruptedException {<a name="line.95"></a> -<span class="sourceLineNo">096</span> prepare(env);<a name="line.96"></a> -<span class="sourceLineNo">097</span><a name="line.97"></a> -<span class="sourceLineNo">098</span> if (!isRunRequired()) {<a name="line.98"></a> -<span class="sourceLineNo">099</span> LOG.info(this + "; Meta already initialized. Skipping run");<a name="line.99"></a> -<span class="sourceLineNo">100</span> return Flow.NO_MORE_STATE;<a name="line.100"></a> -<span class="sourceLineNo">101</span> }<a name="line.101"></a> -<span class="sourceLineNo">102</span><a name="line.102"></a> -<span class="sourceLineNo">103</span> try {<a name="line.103"></a> -<span class="sourceLineNo">104</span> switch (state) {<a name="line.104"></a> -<span class="sourceLineNo">105</span> case RECOVER_META_SPLIT_LOGS:<a name="line.105"></a> -<span class="sourceLineNo">106</span> LOG.info("Start " + this);<a name="line.106"></a> -<span class="sourceLineNo">107</span> if (shouldSplitWal) {<a name="line.107"></a> -<span class="sourceLineNo">108</span> // TODO: Matteo. We BLOCK here but most important thing to be doing at this moment.<a name="line.108"></a> -<span class="sourceLineNo">109</span> if (failedMetaServer != null) {<a name="line.109"></a> -<span class="sourceLineNo">110</span> master.getMasterWalManager().splitMetaLog(failedMetaServer);<a name="line.110"></a> -<span class="sourceLineNo">111</span> } else {<a name="line.111"></a> -<span class="sourceLineNo">112</span> ServerName serverName =<a name="line.112"></a> -<span class="sourceLineNo">113</span> master.getMetaTableLocator().getMetaRegionLocation(master.getZooKeeper());<a name="line.113"></a> -<span class="sourceLineNo">114</span> Set<ServerName> previouslyFailedServers =<a name="line.114"></a> -<span class="sourceLineNo">115</span> master.getMasterWalManager().getFailedServersFromLogFolders();<a name="line.115"></a> -<span class="sourceLineNo">116</span> if (serverName != null && previouslyFailedServers.contains(serverName)) {<a name="line.116"></a> -<span class="sourceLineNo">117</span> master.getMasterWalManager().splitMetaLog(serverName);<a name="line.117"></a> -<span class="sourceLineNo">118</span> }<a name="line.118"></a> -<span class="sourceLineNo">119</span> }<a name="line.119"></a> -<span class="sourceLineNo">120</span> }<a name="line.120"></a> -<span class="sourceLineNo">121</span> setNextState(RecoverMetaState.RECOVER_META_ASSIGN_REGIONS);<a name="line.121"></a> -<span class="sourceLineNo">122</span> break;<a name="line.122"></a> -<span class="sourceLineNo">123</span><a name="line.123"></a> -<span class="sourceLineNo">124</span> case RECOVER_META_ASSIGN_REGIONS:<a name="line.124"></a> -<span class="sourceLineNo">125</span> RegionInfo hri = RegionReplicaUtil.getRegionInfoForReplica(<a name="line.125"></a> -<span class="sourceLineNo">126</span> RegionInfoBuilder.FIRST_META_REGIONINFO, this.replicaId);<a name="line.126"></a> -<span class="sourceLineNo">127</span><a name="line.127"></a> -<span class="sourceLineNo">128</span> AssignProcedure metaAssignProcedure;<a name="line.128"></a> -<span class="sourceLineNo">129</span> if (failedMetaServer != null) {<a name="line.129"></a> -<span class="sourceLineNo">130</span> LOG.info(this + "; Assigning meta with new plan. previous meta server=" +<a name="line.130"></a> -<span class="sourceLineNo">131</span> failedMetaServer);<a name="line.131"></a> -<span class="sourceLineNo">132</span> metaAssignProcedure = master.getAssignmentManager().createAssignProcedure(hri);<a name="line.132"></a> -<span class="sourceLineNo">133</span> } else {<a name="line.133"></a> -<span class="sourceLineNo">134</span> // get server carrying meta from zk<a name="line.134"></a> -<span class="sourceLineNo">135</span> ServerName metaServer =<a name="line.135"></a> -<span class="sourceLineNo">136</span> MetaTableLocator.getMetaRegionState(master.getZooKeeper()).getServerName();<a name="line.136"></a> -<span class="sourceLineNo">137</span> LOG.info(this + "; Retaining meta assignment to server=" + metaServer);<a name="line.137"></a> -<span class="sourceLineNo">138</span> metaAssignProcedure =<a name="line.138"></a> -<span class="sourceLineNo">139</span> master.getAssignmentManager().createAssignProcedure(hri, metaServer);<a name="line.139"></a> -<span class="sourceLineNo">140</span> }<a name="line.140"></a> -<span class="sourceLineNo">141</span><a name="line.141"></a> -<span class="sourceLineNo">142</span> addChildProcedure(metaAssignProcedure);<a name="line.142"></a> -<span class="sourceLineNo">143</span> return Flow.NO_MORE_STATE;<a name="line.143"></a> -<span class="sourceLineNo">144</span><a name="line.144"></a> -<span class="sourceLineNo">145</span> default:<a name="line.145"></a> -<span class="sourceLineNo">146</span> throw new UnsupportedOperationException("unhandled state=" + state);<a name="line.146"></a> -<span class="sourceLineNo">147</span> }<a name="line.147"></a> -<span class="sourceLineNo">148</span> } catch (IOException|KeeperException e) {<a name="line.148"></a> -<span class="sourceLineNo">149</span> LOG.warn(this + "; Failed state=" + state + ", retry " + this + "; cycles=" +<a name="line.149"></a> -<span class="sourceLineNo">150</span> getCycles(), e);<a name="line.150"></a> -<span class="sourceLineNo">151</span> }<a name="line.151"></a> -<span class="sourceLineNo">152</span> return Flow.HAS_MORE_STATE;<a name="line.152"></a> -<span class="sourceLineNo">153</span> }<a name="line.153"></a> -<span class="sourceLineNo">154</span><a name="line.154"></a> -<span class="sourceLineNo">155</span> @Override<a name="line.155"></a> -<span class="sourceLineNo">156</span> protected void rollbackState(MasterProcedureEnv env,<a name="line.156"></a> -<span class="sourceLineNo">157</span> MasterProcedureProtos.RecoverMetaState recoverMetaState)<a name="line.157"></a> -<span class="sourceLineNo">158</span> throws IOException, InterruptedException {<a name="line.158"></a> -<span class="sourceLineNo">159</span> // Can't rollback<a name="line.159"></a> -<span class="sourceLineNo">160</span> throw new UnsupportedOperationException("unhandled state=" + recoverMetaState);<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> @Override<a name="line.163"></a> -<span class="sourceLineNo">164</span> protected MasterProcedureProtos.RecoverMetaState getState(int stateId) {<a name="line.164"></a> -<span class="sourceLineNo">165</span> return RecoverMetaState.forNumber(stateId);<a name="line.165"></a> -<span class="sourceLineNo">166</span> }<a name="line.166"></a> -<span class="sourceLineNo">167</span><a name="line.167"></a> -<span class="sourceLineNo">168</span> @Override<a name="line.168"></a> -<span class="sourceLineNo">169</span> protected int getStateId(MasterProcedureProtos.RecoverMetaState recoverMetaState) {<a name="line.169"></a> -<span class="sourceLineNo">170</span> return recoverMetaState.getNumber();<a name="line.170"></a> -<span class="sourceLineNo">171</span> }<a name="line.171"></a> -<span class="sourceLineNo">172</span><a name="line.172"></a> -<span class="sourceLineNo">173</span> @Override<a name="line.173"></a> -<span class="sourceLineNo">174</span> protected MasterProcedureProtos.RecoverMetaState getInitialState() {<a name="line.174"></a> -<span class="sourceLineNo">175</span> return RecoverMetaState.RECOVER_META_SPLIT_LOGS;<a name="line.175"></a> -<span class="sourceLineNo">176</span> }<a name="line.176"></a> -<span class="sourceLineNo">177</span><a name="line.177"></a> -<span class="sourceLineNo">178</span> @Override<a name="line.178"></a> -<span class="sourceLineNo">179</span> protected void toStringClassDetails(StringBuilder sb) {<a name="line.179"></a> -<span class="sourceLineNo">180</span> sb.append(getClass().getSimpleName());<a name="line.180"></a> -<span class="sourceLineNo">181</span> sb.append(" failedMetaServer=");<a name="line.181"></a> -<span class="sourceLineNo">182</span> sb.append(failedMetaServer);<a name="line.182"></a> -<span class="sourceLineNo">183</span> sb.append(", splitWal=");<a name="line.183"></a> -<span class="sourceLineNo">184</span> sb.append(shouldSplitWal);<a name="line.184"></a> -<span class="sourceLineNo">185</span> }<a name="line.185"></a> -<span class="sourceLineNo">186</span><a name="line.186"></a> -<span class="sourceLineNo">187</span> @Override<a name="line.187"></a> -<span class="sourceLineNo">188</span> protected void serializeStateData(ProcedureStateSerializer serializer)<a name="line.188"></a> -<span class="sourceLineNo">189</span> throws IOException {<a name="line.189"></a> -<span class="sourceLineNo">190</span> super.serializeStateData(serializer);<a name="line.190"></a> -<span class="sourceLineNo">191</span> MasterProcedureProtos.RecoverMetaStateData.Builder state =<a name="line.191"></a> -<span class="sourceLineNo">192</span> MasterProcedureProtos.RecoverMetaStateData.newBuilder().setShouldSplitWal(shouldSplitWal);<a name="line.192"></a> -<span class="sourceLineNo">193</span> if (failedMetaServer != null) {<a name="line.193"></a> -<span class="sourceLineNo">194</span> state.setFailedMetaServer(ProtobufUtil.toServerName(failedMetaServer));<a name="line.194"></a> -<span class="sourceLineNo">195</span> }<a name="line.195"></a> -<span class="sourceLineNo">196</span> state.setReplicaId(replicaId);<a name="line.196"></a> -<span class="sourceLineNo">197</span> serializer.serialize(state.build());<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> @Override<a name="line.200"></a> -<span class="sourceLineNo">201</span> protected void deserializeStateData(ProcedureStateSerializer serializer)<a name="line.201"></a> -<span class="sourceLineNo">202</span> throws IOException {<a name="line.202"></a> -<span class="sourceLineNo">203</span> super.deserializeStateData(serializer);<a name="line.203"></a> -<span class="sourceLineNo">204</span> MasterProcedureProtos.RecoverMetaStateData state =<a name="line.204"></a> -<span class="sourceLineNo">205</span> serializer.deserialize(MasterProcedureProtos.RecoverMetaStateData.class);<a name="line.205"></a> -<span class="sourceLineNo">206</span> this.shouldSplitWal = state.hasShouldSplitWal() && state.getShouldSplitWal();<a name="line.206"></a> -<span class="sourceLineNo">207</span> this.failedMetaServer = state.hasFailedMetaServer() ?<a name="line.207"></a> -<span class="sourceLineNo">208</span> ProtobufUtil.toServerName(state.getFailedMetaServer()) : null;<a name="line.208"></a> -<span class="sourceLineNo">209</span> this.replicaId = state.hasReplicaId() ? state.getReplicaId() : RegionInfo.DEFAULT_REPLICA_ID;<a name="line.209"></a> -<span class="sourceLineNo">210</span> }<a name="line.210"></a> -<span class="sourceLineNo">211</span><a name="line.211"></a> -<span class="sourceLineNo">212</span> @Override<a name="line.212"></a> -<span class="sourceLineNo">213</span> protected LockState acquireLock(MasterProcedureEnv env) {<a name="line.213"></a> -<span class="sourceLineNo">214</span> if (env.getProcedureScheduler().waitTableExclusiveLock(this, TableName.META_TABLE_NAME)) {<a name="line.214"></a> -<span class="sourceLineNo">215</span> return LockState.LOCK_EVENT_WAIT;<a name="line.215"></a> -<span class="sourceLineNo">216</span> }<a name="line.216"></a> -<span class="sourceLineNo">217</span> return LockState.LOCK_ACQUIRED;<a name="line.217"></a> -<span class="sourceLineNo">218</span> }<a name="line.218"></a> -<span class="sourceLineNo">219</span><a name="line.219"></a> -<span class="sourceLineNo">220</span> @Override<a name="line.220"></a> -<span class="sourceLineNo">221</span> protected void releaseLock(MasterProcedureEnv env) {<a name="line.221"></a> -<span class="sourceLineNo">222</span> env.getProcedureScheduler().wakeTableExclusiveLock(this, TableName.META_TABLE_NAME);<a name="line.222"></a> -<span class="sourceLineNo">223</span> }<a name="line.223"></a> -<span class="sourceLineNo">224</span><a name="line.224"></a> -<span class="sourceLineNo">225</span> @Override<a name="line.225"></a> -<span class="sourceLineNo">226</span> protected void completionCleanup(MasterProcedureEnv env) {<a name="line.226"></a> -<span class="sourceLineNo">227</span> ProcedurePrepareLatch.releaseLatch(syncLatch, this);<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> @Override<a name="line.230"></a> -<span class="sourceLineNo">231</span> public TableName getTableName() {<a name="line.231"></a> -<span class="sourceLineNo">232</span> return TableName.META_TABLE_NAME;<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> @Override<a name="line.235"></a> -<span class="sourceLineNo">236</span> public TableOperationType getTableOperationType() {<a name="line.236"></a> -<span class="sourceLineNo">237</span> return TableOperationType.ENABLE;<a name="line.237"></a> +<span class="sourceLineNo">031</span>import org.apache.hadoop.hbase.master.assignment.AssignmentManager;<a name="line.31"></a> +<span class="sourceLineNo">032</span>import org.apache.hadoop.hbase.master.assignment.RegionTransitionProcedure;<a name="line.32"></a> +<span class="sourceLineNo">033</span>import org.apache.hadoop.hbase.procedure2.ProcedureStateSerializer;<a name="line.33"></a> +<span class="sourceLineNo">034</span>import org.apache.hadoop.hbase.procedure2.ProcedureSuspendedException;<a name="line.34"></a> +<span class="sourceLineNo">035</span>import org.apache.hadoop.hbase.procedure2.ProcedureYieldException;<a name="line.35"></a> +<span class="sourceLineNo">036</span>import org.apache.hadoop.hbase.procedure2.StateMachineProcedure;<a name="line.36"></a> +<span class="sourceLineNo">037</span>import org.apache.hadoop.hbase.zookeeper.MetaTableLocator;<a name="line.37"></a> +<span class="sourceLineNo">038</span>import org.apache.zookeeper.KeeperException;<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.base.Preconditions;<a name="line.42"></a> +<span class="sourceLineNo">043</span>import org.apache.hadoop.hbase.shaded.protobuf.ProtobufUtil;<a name="line.43"></a> +<span class="sourceLineNo">044</span>import org.apache.hadoop.hbase.shaded.protobuf.generated.MasterProcedureProtos;<a name="line.44"></a> +<span class="sourceLineNo">045</span>import org.apache.hadoop.hbase.shaded.protobuf.generated.MasterProcedureProtos.RecoverMetaState;<a name="line.45"></a> +<span class="sourceLineNo">046</span><a name="line.46"></a> +<span class="sourceLineNo">047</span><a name="line.47"></a> +<span class="sourceLineNo">048</span>/**<a name="line.48"></a> +<span class="sourceLineNo">049</span> * This procedure recovers meta from prior shutdown/ crash of a server, and brings meta online by<a name="line.49"></a> +<span class="sourceLineNo">050</span> * assigning meta region/s. Any place where meta is accessed and requires meta to be online, need to<a name="line.50"></a> +<span class="sourceLineNo">051</span> * submit this procedure instead of duplicating steps to recover meta in the code.<a name="line.51"></a> +<span class="sourceLineNo">052</span> */<a name="line.52"></a> +<span class="sourceLineNo">053</span>public class RecoverMetaProcedure<a name="line.53"></a> +<span class="sourceLineNo">054</span> extends StateMachineProcedure<MasterProcedureEnv, MasterProcedureProtos.RecoverMetaState><a name="line.54"></a> +<span class="sourceLineNo">055</span> implements TableProcedureInterface {<a name="line.55"></a> +<span class="sourceLineNo">056</span> private static final Logger LOG = LoggerFactory.getLogger(RecoverMetaProcedure.class);<a name="line.56"></a> +<span class="sourceLineNo">057</span><a name="line.57"></a> +<span class="sourceLineNo">058</span> private ServerName failedMetaServer;<a name="line.58"></a> +<span class="sourceLineNo">059</span> private boolean shouldSplitWal;<a name="line.59"></a> +<span class="sourceLineNo">060</span> private int replicaId;<a name="line.60"></a> +<span class="sourceLineNo">061</span><a name="line.61"></a> +<span class="sourceLineNo">062</span> private final ProcedurePrepareLatch syncLatch;<a name="line.62"></a> +<span class="sourceLineNo">063</span> private MasterServices master;<a name="line.63"></a> +<span class="sourceLineNo">064</span><a name="line.64"></a> +<span class="sourceLineNo">065</span> /**<a name="line.65"></a> +<span class="sourceLineNo">066</span> * Call this constructor to queue up a {@link RecoverMetaProcedure} in response to meta<a name="line.66"></a> +<span class="sourceLineNo">067</span> * carrying server crash<a name="line.67"></a> +<span class="sourceLineNo">068</span> * @param failedMetaServer failed/ crashed region server that was carrying meta<a name="line.68"></a> +<span class="sourceLineNo">069</span> * @param shouldSplitLog split log file of meta region<a name="line.69"></a> +<span class="sourceLineNo">070</span> */<a name="line.70"></a> +<span class="sourceLineNo">071</span> public RecoverMetaProcedure(final ServerName failedMetaServer, final boolean shouldSplitLog) {<a name="line.71"></a> +<span class="sourceLineNo">072</span> this(failedMetaServer, shouldSplitLog, null);<a name="line.72"></a> +<span class="sourceLineNo">073</span> }<a name="line.73"></a> +<span class="sourceLineNo">074</span><a name="line.74"></a> +<span class="sourceLineNo">075</span> /**<a name="line.75"></a> +<span class="sourceLineNo">076</span> * Constructor with latch, for blocking/ sync usage<a name="line.76"></a> +<span class="sourceLineNo">077</span> */<a name="line.77"></a> +<span class="sourceLineNo">078</span> public RecoverMetaProcedure(final ServerName failedMetaServer, final boolean shouldSplitLog,<a name="line.78"></a> +<span class="sourceLineNo">079</span> final ProcedurePrepareLatch latch) {<a name="line.79"></a> +<span class="sourceLineNo">080</span> this.failedMetaServer = failedMetaServer;<a name="line.80"></a> +<span class="sourceLineNo">081</span> this.shouldSplitWal = shouldSplitLog;<a name="line.81"></a> +<span class="sourceLineNo">082</span> this.replicaId = RegionInfo.DEFAULT_REPLICA_ID;<a name="line.82"></a> +<span class="sourceLineNo">083</span> this.syncLatch = latch;<a name="line.83"></a> +<span class="sourceLineNo">084</span> }<a name="line.84"></a> +<span class="sourceLineNo">085</span><a name="line.85"></a> +<span class="sourceLineNo">086</span> /**<a name="line.86"></a> +<span class="sourceLineNo">087</span> * This constructor is also used when deserializing from a procedure store; we'll construct one<a name="line.87"></a> +<span class="sourceLineNo">088</span> * of these then call #deserializeStateData(InputStream). Do not use directly.<a name="line.88"></a> +<span class="sourceLineNo">089</span> */<a name="line.89"></a> +<span class="sourceLineNo">090</span> public RecoverMetaProcedure() {<a name="line.90"></a> +<span class="sourceLineNo">091</span> this(null, false);<a name="line.91"></a> +<span class="sourceLineNo">092</span> }<a name="line.92"></a> +<span class="sourceLineNo">093</span><a name="line.93"></a> +<span class="sourceLineNo">094</span> @Override<a name="line.94"></a> +<span class="sourceLineNo">095</span> protected Flow executeFromState(MasterProcedureEnv env,<a name="line.95"></a> +<span class="sourceLineNo">096</span> MasterProcedureProtos.RecoverMetaState state)<a name="line.96"></a> +<span class="sourceLineNo">097</span> throws ProcedureSuspendedException, ProcedureYieldException, InterruptedException {<a name="line.97"></a> +<span class="sourceLineNo">098</span> prepare(env);<a name="line.98"></a> +<span class="sourceLineNo">099</span><a name="line.99"></a> +<span class="sourceLineNo">100</span> if (!isRunRequired()) {<a name="line.100"></a> +<span class="sourceLineNo">101</span> LOG.info(this + "; Meta already initialized. Skipping run");<a name="line.101"></a> +<span class="sourceLineNo">102</span> return Flow.NO_MORE_STATE;<a name="line.102"></a> +<span class="sourceLineNo">103</span> }<a name="line.103"></a> +<span class="sourceLineNo">104</span><a name="line.104"></a> +<span class="sourceLineNo">105</span> try {<a name="line.105"></a> +<span class="sourceLineNo">106</span> switch (state) {<a name="line.106"></a> +<span class="sourceLineNo">107</span> case RECOVER_META_SPLIT_LOGS:<a name="line.107"></a> +<span class="sourceLineNo">108</span> LOG.info("Start " + this);<a name="line.108"></a> +<span class="sourceLineNo">109</span> if (shouldSplitWal) {<a name="line.109"></a> +<span class="sourceLineNo">110</span> // TODO: Matteo. We BLOCK here but most important thing to be doing at this moment.<a name="line.110"></a> +<span class="sourceLineNo">111</span> if (failedMetaServer != null) {<a name="line.111"></a> +<span class="sourceLineNo">112</span> master.getMasterWalManager().splitMetaLog(failedMetaServer);<a name="line.112"></a> +<span class="sourceLineNo">113</span> } else {<a name="line.113"></a> +<span class="sourceLineNo">114</span> ServerName serverName =<a name="line.114"></a> +<span class="sourceLineNo">115</span> master.getMetaTableLocator().getMetaRegionLocation(master.getZooKeeper());<a name="line.115"></a> +<span class="sourceLineNo">116</span> Set<ServerName> previouslyFailedServers =<a name="line.116"></a> +<span class="sourceLineNo">117</span> master.getMasterWalManager().getFailedServersFromLogFolders();<a name="line.117"></a> +<span class="sourceLineNo">118</span> if (serverName != null && previouslyFailedServers.contains(serverName)) {<a name="line.118"></a> +<span class="sourceLineNo">119</span> master.getMasterWalManager().splitMetaLog(serverName);<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> }<a name="line.122"></a> +<span class="sourceLineNo">123</span> setNextState(RecoverMetaState.RECOVER_META_ASSIGN_REGIONS);<a name="line.123"></a> +<span class="sourceLineNo">124</span> break;<a name="line.124"></a> +<span class="sourceLineNo">125</span><a name="line.125"></a> +<span class="sourceLineNo">126</span> case RECOVER_META_ASSIGN_REGIONS:<a name="line.126"></a> +<span class="sourceLineNo">127</span> RegionInfo hri = RegionReplicaUtil.getRegionInfoForReplica(<a name="line.127"></a> +<span class="sourceLineNo">128</span> RegionInfoBuilder.FIRST_META_REGIONINFO, this.replicaId);<a name="line.128"></a> +<span class="sourceLineNo">129</span><a name="line.129"></a> +<span class="sourceLineNo">130</span> AssignProcedure metaAssignProcedure;<a name="line.130"></a> +<span class="sourceLineNo">131</span> AssignmentManager am = master.getAssignmentManager();<a name="line.131"></a> +<span class="sourceLineNo">132</span> if (failedMetaServer != null) {<a name="line.132"></a> +<span class="sourceLineNo">133</span> handleRIT(env, hri, this.failedMetaServer);<a name="line.133"></a> +<span class="sourceLineNo">134</span> LOG.info(this + "; Assigning meta with new plan; previous server=" + failedMetaServer);<a name="line.134"></a> +<span class="sourceLineNo">135</span> metaAssignProcedure = am.createAssignProcedure(hri);<a name="line.135"></a> +<span class="sourceLineNo">136</span> } else {<a name="line.136"></a> +<span class="sourceLineNo">137</span> // get server carrying meta from zk<a name="line.137"></a> +<span class="sourceLineNo">138</span> ServerName metaServer =<a name="line.138"></a> +<span class="sourceLineNo">139</span> MetaTableLocator.getMetaRegionState(master.getZooKeeper()).getServerName();<a name="line.139"></a> +<span class="sourceLineNo">140</span> LOG.info(this + "; Retaining meta assignment to server=" + metaServer);<a name="line.140"></a> +<span class="sourceLineNo">141</span> metaAssignProcedure = am.createAssignProcedure(hri, metaServer);<a name="line.141"></a> +<span class="sourceLineNo">142</span> }<a name="line.142"></a> +<span class="sourceLineNo">143</span><a name="line.143"></a> +<span class="sourceLineNo">144</span> addChildProcedure(metaAssignProcedure);<a name="line.144"></a> +<span class="sourceLineNo">145</span> return Flow.NO_MORE_STATE;<a name="line.145"></a> +<span class="sourceLineNo">146</span><a name="line.146"></a> +<span class="sourceLineNo">147</span> default:<a name="line.147"></a> +<span class="sourceLineNo">148</span> throw new UnsupportedOperationException("unhandled state=" + state);<a name="line.148"></a> +<span class="sourceLineNo">149</span> }<a name="line.149"></a> +<span class="sourceLineNo">150</span> } catch (IOException|KeeperException e) {<a name="line.150"></a> +<span class="sourceLineNo">151</span> LOG.warn(this + "; Failed state=" + state + ", retry " + this + "; cycles=" +<a name="line.151"></a> +<span class="sourceLineNo">152</span> getCycles(), e);<a name="line.152"></a> +<span class="sourceLineNo">153</span> }<a name="line.153"></a> +<span class="sourceLineNo">154</span> return Flow.HAS_MORE_STATE;<a name="line.154"></a> +<span class="sourceLineNo">155</span> }<a name="line.155"></a> +<span class="sourceLineNo">156</span><a name="line.156"></a> +<span class="sourceLineNo">157</span> /**<a name="line.157"></a> +<span class="sourceLineNo">158</span> * Is the region stuck assigning to this failedMetaServer? If so, cancel the call<a name="line.158"></a> +<span class="sourceLineNo">159</span> * just as we do over in ServerCrashProcedure#handleRIT except less to do here; less context<a name="line.159"></a> +<span class="sourceLineNo">160</span> * to carry.<a name="line.160"></a> +<span class="sourceLineNo">161</span> */<a name="line.161"></a> +<span class="sourceLineNo">162</span> private void handleRIT(MasterProcedureEnv env, RegionInfo ri, ServerName crashedServerName) {<a name="line.162"></a> +<span class="sourceLineNo">163</span> AssignmentManager am = env.getAssignmentManager();<a name="line.163"></a> +<span class="sourceLineNo">164</span> RegionTransitionProcedure rtp = am.getRegionStates().getRegionTransitionProcedure(ri);<a name="line.164"></a> +<span class="sourceLineNo">165</span> if (rtp == null) {<a name="line.165"></a> +<span class="sourceLineNo">166</span> return; // Nothing to do. Not in RIT.<a name="line.166"></a> +<span class="sourceLineNo">167</span> }<a name="line.167"></a> +<span class="sourceLineNo">168</span> // Make sure the RIT is against this crashed server. In the case where there are many<a name="line.168"></a> +<span class="sourceLineNo">169</span> // processings of a crashed server -- backed up for whatever reason (slow WAL split)<a name="line.169"></a> +<span class="sourceLineNo">170</span> // -- then a previous SCP may have already failed an assign, etc., and it may have a<a name="line.170"></a> +<span class="sourceLineNo">171</span> // new location target; DO NOT fail these else we make for assign flux.<a name="line.171"></a> +<span class="sourceLineNo">172</span> ServerName rtpServerName = rtp.getServer(env);<a name="line.172"></a> +<span class="sourceLineNo">173</span> if (rtpServerName == null) {<a name="line.173"></a> +<span class="sourceLineNo">174</span> LOG.warn("RIT with ServerName null! " + rtp);<a name="line.174"></a> +<span class="sourceLineNo">175</span> } else if (rtpServerName.equals(crashedServerName)) {<a name="line.175"></a> +<span class="sourceLineNo">176</span> LOG.info("pid=" + getProcId() + " found RIT " + rtp + "; " +<a name="line.176"></a> +<span class="sourceLineNo">177</span> rtp.getRegionState(env).toShortString());<a name="line.177"></a> +<span class="sourceLineNo">178</span> rtp.remoteCallFailed(env, crashedServerName,<a name="line.178"></a> +<span class="sourceLineNo">179</span> new ServerCrashException(getProcId(), crashedServerName));<a name="line.179"></a> +<span class="sourceLineNo">180</span> }<a name="line.180"></a> +<span class="sourceLineNo">181</span> }<a name="line.181"></a> +<span class="sourceLineNo">182</span><a name="line.182"></a> +<span class="sourceLineNo">183</span> @Override<a name="line.183"></a> +<span class="sourceLineNo">184</span> protected void rollbackState(MasterProcedureEnv env,<a name="line.184"></a> +<span class="sourceLineNo">185</span> MasterProcedureProtos.RecoverMetaState recoverMetaState)<a name="line.185"></a> +<span class="sourceLineNo">186</span> throws IOException, InterruptedException {<a name="line.186"></a> +<span class="sourceLineNo">187</span> // Can't rollback<a name="line.187"></a> +<span class="sourceLineNo">188</span> throw new UnsupportedOperationException("unhandled state=" + recoverMetaState);<a name="line.188"></a> +<span class="sourceLineNo">189</span> }<a name="line.189"></a> +<span class="sourceLineNo">190</span><a name="line.190"></a> +<span class="sourceLineNo">191</span> @Override<a name="line.191"></a> +<span class="sourceLineNo">192</span> protected MasterProcedureProtos.RecoverMetaState getState(int stateId) {<a name="line.192"></a> +<span class="sourceLineNo">193</span> return RecoverMetaState.forNumber(stateId);<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> @Override<a name="line.196"></a> +<span class="sourceLineNo">197</span> protected int getStateId(MasterProcedureProtos.RecoverMetaState recoverMetaState) {<a name="line.197"></a> +<span class="sourceLineNo">198</span> return recoverMetaState.getNumber();<a name="line.198"></a> +<span class="sourceLineNo">199</span> }<a name="line.199"></a> +<span class="sourceLineNo">200</span><a name="line.200"></a> +<span class="sourceLineNo">201</span> @Override<a name="line.201"></a> +<span class="sourceLineNo">202</span> protected MasterProcedureProtos.RecoverMetaState getInitialState() {<a name="line.202"></a> +<span class="sourceLineNo">203</span> return RecoverMetaState.RECOVER_META_SPLIT_LOGS;<a name="line.203"></a> +<span class="sourceLineNo">204</span> }<a name="line.204"></a> +<span class="sourceLineNo">205</span><a name="line.205"></a> +<span class="sourceLineNo">206</span> @Override<a name="line.206"></a> +<span class="sourceLineNo">207</span> protected void toStringClassDetails(StringBuilder sb) {<a name="line.207"></a> +<span class="sourceLineNo">208</span> sb.append(getClass().getSimpleName());<a name="line.208"></a> +<span class="sourceLineNo">209</span> sb.append(" failedMetaServer=");<a name="line.209"></a> +<span class="sourceLineNo">210</span> sb.append(failedMetaServer);<a name="line.210"></a> +<span class="sourceLineNo">211</span> sb.append(", splitWal=");<a name="line.211"></a> +<span class="sourceLineNo">212</span> sb.append(shouldSplitWal);<a name="line.212"></a> +<span class="sourceLineNo">213</span> }<a name="line.213"></a> +<span class="sourceLineNo">214</span><a name="line.214"></a> +<span class="sourceLineNo">215</span> @Override<a name="line.215"></a> +<span class="sourceLineNo">216</span> protected void serializeStateData(ProcedureStateSerializer serializer)<a name="line.216"></a> +<span class="sourceLineNo">217</span> throws IOException {<a name="line.217"></a> +<span class="sourceLineNo">218</span> super.serializeStateData(serializer);<a name="line.218"></a> +<span class="sourceLineNo">219</span> MasterProcedureProtos.RecoverMetaStateData.Builder state =<a name="line.219"></a> +<span class="sourceLineNo">220</span> MasterProcedureProtos.RecoverMetaStateData.newBuilder().setShouldSplitWal(shouldSplitWal);<a name="line.220"></a> +<span class="sourceLineNo">221</span> if (failedMetaServer != null) {<a name="line.221"></a> +<span class="sourceLineNo">222</span> state.setFailedMetaServer(ProtobufUtil.toServerName(failedMetaServer));<a name="line.222"></a> +<span class="sourceLineNo">223</span> }<a name="line.223"></a> +<span class="sourceLineNo">224</span> state.setReplicaId(replicaId);<a name="line.224"></a> +<span class="sourceLineNo">225</span> serializer.serialize(state.build());<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> @Override<a name="line.228"></a> +<span class="sourceLineNo">229</span> protected void deserializeStateData(ProcedureStateSerializer serializer)<a name="line.229"></a> +<span class="sourceLineNo">230</span> throws IOException {<a name="line.230"></a> +<span class="sourceLineNo">231</span> super.deserializeStateData(serializer);<a name="line.231"></a> +<span class="sourceLineNo">232</span> MasterProcedureProtos.RecoverMetaStateData state =<a name="line.232"></a> +<span class="sourceLineNo">233</span> serializer.deserialize(MasterProcedureProtos.RecoverMetaStateData.class);<a name="line.233"></a> +<span class="sourceLineNo">234</span> this.shouldSplitWal = state.hasShouldSplitWal() && state.getShouldSplitWal();<a name="line.234"></a> +<span class="sourceLineNo">235</span> this.failedMetaServer = state.hasFailedMetaServer() ?<a name="line.235"></a> +<span class="sourceLineNo">236</span> ProtobufUtil.toServerName(state.getFailedMetaServer()) : null;<a name="line.236"></a> +<span class="sourceLineNo">237</span> this.replicaId = state.hasReplicaId() ? state.getReplicaId() : RegionInfo.DEFAULT_REPLICA_ID;<a name="line.237"></a> <span class="sourceLineNo">238</span> }<a name="line.238"></a> <span class="sourceLineNo">239</span><a name="line.239"></a> -<span class="sourceLineNo">240</span> /**<a name="line.240"></a> -<span class="sourceLineNo">241</span> * @return true if failedMetaServer is not null (meta carrying server crashed) or meta is<a name="line.241"></a> -<span class="sourceLineNo">242</span> * already initialized<a name="line.242"></a> -<span class="sourceLineNo">243</span> */<a name="line.243"></a> -<span class="sourceLineNo">244</span> private boolean isRunRequired() {<a name="line.244"></a> -<span class="sourceLineNo">245</span> return failedMetaServer != null || !master.getAssignmentManager().isMetaInitialized();<a name="line.245"></a> +<span class="sourceLineNo">240</span> @Override<a name="line.240"></a> +<span class="sourceLineNo">241</span> protected LockState acquireLock(MasterProcedureEnv env) {<a name="line.241"></a> +<span class="sourceLineNo">242</span> if (env.getProcedureScheduler().waitTableExclusiveLock(this, TableName.META_TABLE_NAME)) {<a name="line.242"></a> +<span class="sourceLineNo">243</span> return LockState.LOCK_EVENT_WAIT;<a name="line.243"></a> +<span class="sourceLineNo">244</span> }<a name="line.244"></a> +<span class="sourceLineNo">245</span> return LockState.LOCK_ACQUIRED;<a name="line.245"></a> <span class="sourceLineNo">246</span> }<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> * Prepare for execution<a name="line.249"></a> -<span class="sourceLineNo">250</span> */<a name="line.250"></a> -<span class="sourceLineNo">251</span> private void prepare(MasterProcedureEnv env) {<a name="line.251"></a> -<span class="sourceLineNo">252</span> if (master == null) {<a name="line.252"></a> -<span class="sourceLineNo">253</span> master = env.getMasterServices();<a name="line.253"></a> -<span class="sourceLineNo">254</span> Preconditions.checkArgument(master != null);<a name="line.254"></a> -<span class="sourceLineNo">255</span> }<a name="line.255"></a> +<span class="sourceLineNo">248</span> @Override<a name="line.248"></a> +<span class="sourceLineNo">249</span> protected void releaseLock(MasterProcedureEnv env) {<a name="line.249"></a> +<span class="sourceLineNo">250</span> env.getProcedureScheduler().wakeTableExclusiveLock(this, TableName.META_TABLE_NAME);<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> @Override<a name="line.253"></a> +<span class="sourceLineNo">254</span> protected void completionCleanup(MasterProcedureEnv env) {<a name="line.254"></a> +<span class="sourceLineNo">255</span> ProcedurePrepareLatch.releaseLatch(syncLatch, this);<a name="line.255"></a> <span class="sourceLineNo">256</span> }<a name="line.256"></a> -<span class="sourceLineNo">257</span>}<a name="line.257"></a> +<span class="sourceLineNo">257</span><a name="line.257"></a> +<span class="sourceLineNo">258</span> @Override<a name="line.258"></a> +<span class="sourceLineNo">259</span> public TableName getTableName() {<a name="line.259"></a> +<span class="sourceLineNo">260</span> return TableName.META_TABLE_NAME;<a name="line.260"></a> +<span class="sourceLineNo">261</span> }<a name="line.261"></a> +<span class="sourceLineNo">262</span><a name="line.262"></a> +<span class="sourceLineNo">263</span> @Override<a name="line.263"></a> +<span class="sourceLineNo">264</span> public TableOperationType getTableOperationType() {<a name="line.264"></a> +<span class="sourceLineNo">265</span> return TableOperationType.ENABLE;<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> /**<a name="line.268"></a> +<span class="sourceLineNo">269</span> * @return true if failedMetaServer is not null (meta carrying server crashed) or meta is<a name="line.269"></a> +<span class="sourceLineNo">270</span> * already initialized<a name="line.270"></a> +<span class="sourceLineNo">271</span> */<a name="line.271"></a> +<span class="sourceLineNo">272</span> private boolean isRunRequired() {<a name="line.272"></a> +<span class="sourceLineNo">273</span> return failedMetaServer != null || !master.getAssignmentManager().isMetaInitialized();<a name="line.273"></a> +<span class="sourceLineNo">274</span> }<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> * Prepare for execution<a name="line.277"></a> +<span class="sourceLineNo">278</span> */<a name="line.278"></a> +<span class="sourceLineNo">279</span> private void prepare(MasterProcedureEnv env) {<a name="line.279"></a> +<span class="sourceLineNo">280</span> if (master == null) {<a name="line.280"></a> +<span class="sourceLineNo">281</span> master = env.getMasterServices();<a name="line.281"></a> +<span class="sourceLineNo">282</span> Preconditions.checkArgument(master != null);<a name="line.282"></a> +<span class="sourceLineNo">283</span> }<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>
