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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.regionserver;<a name="line.18"></a> |
| <span class="sourceLineNo">019</span>import java.util.concurrent.locks.Lock;<a name="line.19"></a> |
| <span class="sourceLineNo">020</span>import org.apache.hadoop.hbase.HBaseIOException;<a name="line.20"></a> |
| <span class="sourceLineNo">021</span>import org.apache.hadoop.hbase.executor.EventType;<a name="line.21"></a> |
| <span class="sourceLineNo">022</span>import org.apache.hadoop.hbase.procedure2.RSProcedureCallable;<a name="line.22"></a> |
| <span class="sourceLineNo">023</span>import org.apache.hadoop.hbase.util.KeyLocker;<a name="line.23"></a> |
| <span class="sourceLineNo">024</span>import org.apache.yetus.audience.InterfaceAudience;<a name="line.24"></a> |
| <span class="sourceLineNo">025</span>import org.slf4j.Logger;<a name="line.25"></a> |
| <span class="sourceLineNo">026</span>import org.slf4j.LoggerFactory;<a name="line.26"></a> |
| <span class="sourceLineNo">027</span>import org.apache.hbase.thirdparty.com.google.protobuf.InvalidProtocolBufferException;<a name="line.27"></a> |
| <span class="sourceLineNo">028</span>import org.apache.hadoop.hbase.shaded.protobuf.generated.MasterProcedureProtos;<a name="line.28"></a> |
| <span class="sourceLineNo">029</span><a name="line.29"></a> |
| <span class="sourceLineNo">030</span>/**<a name="line.30"></a> |
| <span class="sourceLineNo">031</span> * This callable is used to do the real split WAL task. It is called by<a name="line.31"></a> |
| <span class="sourceLineNo">032</span> * {@link org.apache.hadoop.hbase.master.procedure.SplitWALRemoteProcedure} from master and executed<a name="line.32"></a> |
| <span class="sourceLineNo">033</span> * by executor service which is in charge of executing the events of EventType.RS_LOG_REPLAY<a name="line.33"></a> |
| <span class="sourceLineNo">034</span> *<a name="line.34"></a> |
| <span class="sourceLineNo">035</span> * When execute this callable, it will call SplitLogWorker.splitLog() to split the WAL.<a name="line.35"></a> |
| <span class="sourceLineNo">036</span> * If the return value is SplitLogWorker.TaskExecutor.Status.DONE, it means the task is successful<a name="line.36"></a> |
| <span class="sourceLineNo">037</span> * and it will return null to end the call. Otherwise it will throw an exception and let<a name="line.37"></a> |
| <span class="sourceLineNo">038</span> * {@link org.apache.hadoop.hbase.master.procedure.SplitWALRemoteProcedure} to handle this problem.<a name="line.38"></a> |
| <span class="sourceLineNo">039</span> *<a name="line.39"></a> |
| <span class="sourceLineNo">040</span> * This class is to replace the zk-based WAL splitting related code, {@link SplitLogWorker},<a name="line.40"></a> |
| <span class="sourceLineNo">041</span> * {@link org.apache.hadoop.hbase.coordination.SplitLogWorkerCoordination} and<a name="line.41"></a> |
| <span class="sourceLineNo">042</span> * {@link org.apache.hadoop.hbase.coordination.ZkSplitLogWorkerCoordination} can be removed after<a name="line.42"></a> |
| <span class="sourceLineNo">043</span> * we switch to procedure-based WAL splitting.<a name="line.43"></a> |
| <span class="sourceLineNo">044</span> */<a name="line.44"></a> |
| <span class="sourceLineNo">045</span>@InterfaceAudience.Private<a name="line.45"></a> |
| <span class="sourceLineNo">046</span>public class SplitWALCallable implements RSProcedureCallable {<a name="line.46"></a> |
| <span class="sourceLineNo">047</span> private static final Logger LOG = LoggerFactory.getLogger(SplitWALCallable.class);<a name="line.47"></a> |
| <span class="sourceLineNo">048</span><a name="line.48"></a> |
| <span class="sourceLineNo">049</span> private String walPath;<a name="line.49"></a> |
| <span class="sourceLineNo">050</span> private Exception initError;<a name="line.50"></a> |
| <span class="sourceLineNo">051</span> private HRegionServer rs;<a name="line.51"></a> |
| <span class="sourceLineNo">052</span> private final KeyLocker<String> splitWALLocks = new KeyLocker<>();<a name="line.52"></a> |
| <span class="sourceLineNo">053</span> private volatile Lock splitWALLock = null;<a name="line.53"></a> |
| <span class="sourceLineNo">054</span><a name="line.54"></a> |
| <span class="sourceLineNo">055</span><a name="line.55"></a> |
| <span class="sourceLineNo">056</span> @Override<a name="line.56"></a> |
| <span class="sourceLineNo">057</span> public void init(byte[] parameter, HRegionServer rs) {<a name="line.57"></a> |
| <span class="sourceLineNo">058</span> try {<a name="line.58"></a> |
| <span class="sourceLineNo">059</span> this.rs = rs;<a name="line.59"></a> |
| <span class="sourceLineNo">060</span> MasterProcedureProtos.SplitWALParameter param =<a name="line.60"></a> |
| <span class="sourceLineNo">061</span> MasterProcedureProtos.SplitWALParameter.parseFrom(parameter);<a name="line.61"></a> |
| <span class="sourceLineNo">062</span> this.walPath = param.getWalPath();<a name="line.62"></a> |
| <span class="sourceLineNo">063</span> } catch (InvalidProtocolBufferException e) {<a name="line.63"></a> |
| <span class="sourceLineNo">064</span> LOG.error("Parse proto buffer of split WAL request failed ", e);<a name="line.64"></a> |
| <span class="sourceLineNo">065</span> initError = e;<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><a name="line.68"></a> |
| <span class="sourceLineNo">069</span> @Override<a name="line.69"></a> |
| <span class="sourceLineNo">070</span> public EventType getEventType() {<a name="line.70"></a> |
| <span class="sourceLineNo">071</span> return EventType.RS_LOG_REPLAY;<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> public static class PreemptedWALSplitException extends HBaseIOException {<a name="line.74"></a> |
| <span class="sourceLineNo">075</span> PreemptedWALSplitException(String wal) {<a name="line.75"></a> |
| <span class="sourceLineNo">076</span> super(wal);<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> public static class ResignedWALSplitException extends HBaseIOException {<a name="line.80"></a> |
| <span class="sourceLineNo">081</span> ResignedWALSplitException(String wal) {<a name="line.81"></a> |
| <span class="sourceLineNo">082</span> super(wal);<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><a name="line.85"></a> |
| <span class="sourceLineNo">086</span> public static class ErrorWALSplitException extends HBaseIOException {<a name="line.86"></a> |
| <span class="sourceLineNo">087</span> ErrorWALSplitException(String wal) {<a name="line.87"></a> |
| <span class="sourceLineNo">088</span> super(wal);<a name="line.88"></a> |
| <span class="sourceLineNo">089</span> }<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> public Void call() throws Exception {<a name="line.93"></a> |
| <span class="sourceLineNo">094</span> if (initError != null) {<a name="line.94"></a> |
| <span class="sourceLineNo">095</span> throw initError;<a name="line.95"></a> |
| <span class="sourceLineNo">096</span> }<a name="line.96"></a> |
| <span class="sourceLineNo">097</span> //grab a lock<a name="line.97"></a> |
| <span class="sourceLineNo">098</span> splitWALLock = splitWALLocks.acquireLock(walPath);<a name="line.98"></a> |
| <span class="sourceLineNo">099</span> try {<a name="line.99"></a> |
| <span class="sourceLineNo">100</span> switch (SplitLogWorker.splitLog(walPath, null, rs.getConfiguration(), rs, rs, rs.getWalFactory())) {<a name="line.100"></a> |
| <span class="sourceLineNo">101</span> case DONE:<a name="line.101"></a> |
| <span class="sourceLineNo">102</span> break;<a name="line.102"></a> |
| <span class="sourceLineNo">103</span> case PREEMPTED:<a name="line.103"></a> |
| <span class="sourceLineNo">104</span> throw new PreemptedWALSplitException(this.walPath);<a name="line.104"></a> |
| <span class="sourceLineNo">105</span> case RESIGNED:<a name="line.105"></a> |
| <span class="sourceLineNo">106</span> throw new ResignedWALSplitException(this.walPath);<a name="line.106"></a> |
| <span class="sourceLineNo">107</span> default:<a name="line.107"></a> |
| <span class="sourceLineNo">108</span> throw new ErrorWALSplitException(this.walPath);<a name="line.108"></a> |
| <span class="sourceLineNo">109</span> }<a name="line.109"></a> |
| <span class="sourceLineNo">110</span> } finally {<a name="line.110"></a> |
| <span class="sourceLineNo">111</span> splitWALLock.unlock();<a name="line.111"></a> |
| <span class="sourceLineNo">112</span> }<a name="line.112"></a> |
| <span class="sourceLineNo">113</span> return null;<a name="line.113"></a> |
| <span class="sourceLineNo">114</span> }<a name="line.114"></a> |
| <span class="sourceLineNo">115</span><a name="line.115"></a> |
| <span class="sourceLineNo">116</span> public String getWalPath() {<a name="line.116"></a> |
| <span class="sourceLineNo">117</span> return this.walPath;<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> |
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