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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.master.replication;<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.Collections;<a name="line.21"></a> |
| <span class="sourceLineNo">022</span>import java.util.Iterator;<a name="line.22"></a> |
| <span class="sourceLineNo">023</span>import java.util.List;<a name="line.23"></a> |
| <span class="sourceLineNo">024</span>import org.apache.hadoop.hbase.ServerName;<a name="line.24"></a> |
| <span class="sourceLineNo">025</span>import org.apache.hadoop.hbase.master.procedure.MasterProcedureEnv;<a name="line.25"></a> |
| <span class="sourceLineNo">026</span>import org.apache.hadoop.hbase.master.procedure.ServerProcedureInterface;<a name="line.26"></a> |
| <span class="sourceLineNo">027</span>import org.apache.hadoop.hbase.procedure2.Procedure;<a name="line.27"></a> |
| <span class="sourceLineNo">028</span>import org.apache.hadoop.hbase.procedure2.ProcedureStateSerializer;<a name="line.28"></a> |
| <span class="sourceLineNo">029</span>import org.apache.hadoop.hbase.procedure2.ProcedureSuspendedException;<a name="line.29"></a> |
| <span class="sourceLineNo">030</span>import org.apache.hadoop.hbase.procedure2.ProcedureUtil;<a name="line.30"></a> |
| <span class="sourceLineNo">031</span>import org.apache.hadoop.hbase.procedure2.ProcedureYieldException;<a name="line.31"></a> |
| <span class="sourceLineNo">032</span>import org.apache.hadoop.hbase.replication.ReplicationException;<a name="line.32"></a> |
| <span class="sourceLineNo">033</span>import org.apache.hadoop.hbase.replication.ReplicationQueueInfo;<a name="line.33"></a> |
| <span class="sourceLineNo">034</span>import org.apache.hadoop.hbase.replication.ReplicationQueueStorage;<a name="line.34"></a> |
| <span class="sourceLineNo">035</span>import org.apache.hadoop.hbase.util.RetryCounter;<a name="line.35"></a> |
| <span class="sourceLineNo">036</span>import org.apache.hadoop.hbase.util.ServerRegionReplicaUtil;<a name="line.36"></a> |
| <span class="sourceLineNo">037</span>import org.apache.yetus.audience.InterfaceAudience;<a name="line.37"></a> |
| <span class="sourceLineNo">038</span>import org.slf4j.Logger;<a name="line.38"></a> |
| <span class="sourceLineNo">039</span>import org.slf4j.LoggerFactory;<a name="line.39"></a> |
| <span class="sourceLineNo">040</span><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.ClaimReplicationQueuesStateData;<a name="line.42"></a> |
| <span class="sourceLineNo">043</span>import org.apache.hadoop.hbase.shaded.protobuf.generated.ProcedureProtos;<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> * Used to assign the replication queues of a dead server to other region servers.<a name="line.46"></a> |
| <span class="sourceLineNo">047</span> */<a name="line.47"></a> |
| <span class="sourceLineNo">048</span>@InterfaceAudience.Private<a name="line.48"></a> |
| <span class="sourceLineNo">049</span>public class ClaimReplicationQueuesProcedure extends Procedure<MasterProcedureEnv><a name="line.49"></a> |
| <span class="sourceLineNo">050</span> implements ServerProcedureInterface {<a name="line.50"></a> |
| <span class="sourceLineNo">051</span><a name="line.51"></a> |
| <span class="sourceLineNo">052</span> private static final Logger LOG = LoggerFactory.getLogger(ClaimReplicationQueuesProcedure.class);<a name="line.52"></a> |
| <span class="sourceLineNo">053</span><a name="line.53"></a> |
| <span class="sourceLineNo">054</span> private ServerName crashedServer;<a name="line.54"></a> |
| <span class="sourceLineNo">055</span><a name="line.55"></a> |
| <span class="sourceLineNo">056</span> private RetryCounter retryCounter;<a name="line.56"></a> |
| <span class="sourceLineNo">057</span><a name="line.57"></a> |
| <span class="sourceLineNo">058</span> public ClaimReplicationQueuesProcedure() {<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> public ClaimReplicationQueuesProcedure(ServerName crashedServer) {<a name="line.61"></a> |
| <span class="sourceLineNo">062</span> this.crashedServer = crashedServer;<a name="line.62"></a> |
| <span class="sourceLineNo">063</span> }<a name="line.63"></a> |
| <span class="sourceLineNo">064</span><a name="line.64"></a> |
| <span class="sourceLineNo">065</span> @Override<a name="line.65"></a> |
| <span class="sourceLineNo">066</span> public ServerName getServerName() {<a name="line.66"></a> |
| <span class="sourceLineNo">067</span> return crashedServer;<a name="line.67"></a> |
| <span class="sourceLineNo">068</span> }<a name="line.68"></a> |
| <span class="sourceLineNo">069</span><a name="line.69"></a> |
| <span class="sourceLineNo">070</span> @Override<a name="line.70"></a> |
| <span class="sourceLineNo">071</span> public boolean hasMetaTableRegion() {<a name="line.71"></a> |
| <span class="sourceLineNo">072</span> return false;<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> @Override<a name="line.75"></a> |
| <span class="sourceLineNo">076</span> public ServerOperationType getServerOperationType() {<a name="line.76"></a> |
| <span class="sourceLineNo">077</span> return ServerOperationType.CLAIM_REPLICATION_QUEUES;<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> @Override<a name="line.80"></a> |
| <span class="sourceLineNo">081</span> protected Procedure<MasterProcedureEnv>[] execute(MasterProcedureEnv env)<a name="line.81"></a> |
| <span class="sourceLineNo">082</span> throws ProcedureYieldException, ProcedureSuspendedException, InterruptedException {<a name="line.82"></a> |
| <span class="sourceLineNo">083</span> ReplicationQueueStorage storage = env.getReplicationPeerManager().getQueueStorage();<a name="line.83"></a> |
| <span class="sourceLineNo">084</span> try {<a name="line.84"></a> |
| <span class="sourceLineNo">085</span> List<String> queues = storage.getAllQueues(crashedServer);<a name="line.85"></a> |
| <span class="sourceLineNo">086</span> // this is for upgrading to the new region replication framework, where we will delete the<a name="line.86"></a> |
| <span class="sourceLineNo">087</span> // legacy region_replica_replication peer directly, without deleting the replication queues,<a name="line.87"></a> |
| <span class="sourceLineNo">088</span> // as it may still be used by region servers which have not been upgraded yet.<a name="line.88"></a> |
| <span class="sourceLineNo">089</span> for (Iterator<String> iter = queues.iterator(); iter.hasNext();) {<a name="line.89"></a> |
| <span class="sourceLineNo">090</span> ReplicationQueueInfo queue = new ReplicationQueueInfo(iter.next());<a name="line.90"></a> |
| <span class="sourceLineNo">091</span> if (queue.getPeerId().equals(ServerRegionReplicaUtil.REGION_REPLICA_REPLICATION_PEER)) {<a name="line.91"></a> |
| <span class="sourceLineNo">092</span> LOG.info("Found replication queue {} for legacy region replication peer, "<a name="line.92"></a> |
| <span class="sourceLineNo">093</span> + "skipping claiming and removing...", queue.getQueueId());<a name="line.93"></a> |
| <span class="sourceLineNo">094</span> iter.remove();<a name="line.94"></a> |
| <span class="sourceLineNo">095</span> storage.removeQueue(crashedServer, queue.getQueueId());<a name="line.95"></a> |
| <span class="sourceLineNo">096</span> }<a name="line.96"></a> |
| <span class="sourceLineNo">097</span> }<a name="line.97"></a> |
| <span class="sourceLineNo">098</span> if (queues.isEmpty()) {<a name="line.98"></a> |
| <span class="sourceLineNo">099</span> LOG.debug("Finish claiming replication queues for {}", crashedServer);<a name="line.99"></a> |
| <span class="sourceLineNo">100</span> storage.removeReplicatorIfQueueIsEmpty(crashedServer);<a name="line.100"></a> |
| <span class="sourceLineNo">101</span> // we are done<a name="line.101"></a> |
| <span class="sourceLineNo">102</span> return null;<a name="line.102"></a> |
| <span class="sourceLineNo">103</span> }<a name="line.103"></a> |
| <span class="sourceLineNo">104</span> LOG.debug("There are {} replication queues need to be claimed for {}", queues.size(),<a name="line.104"></a> |
| <span class="sourceLineNo">105</span> crashedServer);<a name="line.105"></a> |
| <span class="sourceLineNo">106</span> List<ServerName> targetServers =<a name="line.106"></a> |
| <span class="sourceLineNo">107</span> env.getMasterServices().getServerManager().getOnlineServersList();<a name="line.107"></a> |
| <span class="sourceLineNo">108</span> if (targetServers.isEmpty()) {<a name="line.108"></a> |
| <span class="sourceLineNo">109</span> throw new ReplicationException("no region server available");<a name="line.109"></a> |
| <span class="sourceLineNo">110</span> }<a name="line.110"></a> |
| <span class="sourceLineNo">111</span> Collections.shuffle(targetServers);<a name="line.111"></a> |
| <span class="sourceLineNo">112</span> ClaimReplicationQueueRemoteProcedure[] procs =<a name="line.112"></a> |
| <span class="sourceLineNo">113</span> new ClaimReplicationQueueRemoteProcedure[Math.min(queues.size(), targetServers.size())];<a name="line.113"></a> |
| <span class="sourceLineNo">114</span> for (int i = 0; i < procs.length; i++) {<a name="line.114"></a> |
| <span class="sourceLineNo">115</span> procs[i] = new ClaimReplicationQueueRemoteProcedure(crashedServer, queues.get(i),<a name="line.115"></a> |
| <span class="sourceLineNo">116</span> targetServers.get(i));<a name="line.116"></a> |
| <span class="sourceLineNo">117</span> }<a name="line.117"></a> |
| <span class="sourceLineNo">118</span> return procs;<a name="line.118"></a> |
| <span class="sourceLineNo">119</span> } catch (ReplicationException e) {<a name="line.119"></a> |
| <span class="sourceLineNo">120</span> if (retryCounter == null) {<a name="line.120"></a> |
| <span class="sourceLineNo">121</span> retryCounter = ProcedureUtil.createRetryCounter(env.getMasterConfiguration());<a name="line.121"></a> |
| <span class="sourceLineNo">122</span> }<a name="line.122"></a> |
| <span class="sourceLineNo">123</span> long backoff = retryCounter.getBackoffTimeAndIncrementAttempts();<a name="line.123"></a> |
| <span class="sourceLineNo">124</span> LOG.warn("Failed to claim replication queues for {}, suspend {}secs {}; {};", crashedServer,<a name="line.124"></a> |
| <span class="sourceLineNo">125</span> backoff / 1000, e);<a name="line.125"></a> |
| <span class="sourceLineNo">126</span> setTimeout(Math.toIntExact(backoff));<a name="line.126"></a> |
| <span class="sourceLineNo">127</span> setState(ProcedureProtos.ProcedureState.WAITING_TIMEOUT);<a name="line.127"></a> |
| <span class="sourceLineNo">128</span> skipPersistence();<a name="line.128"></a> |
| <span class="sourceLineNo">129</span> throw new ProcedureSuspendedException();<a name="line.129"></a> |
| <span class="sourceLineNo">130</span> }<a name="line.130"></a> |
| <span class="sourceLineNo">131</span> }<a name="line.131"></a> |
| <span class="sourceLineNo">132</span><a name="line.132"></a> |
| <span class="sourceLineNo">133</span> @Override<a name="line.133"></a> |
| <span class="sourceLineNo">134</span> protected synchronized boolean setTimeoutFailure(MasterProcedureEnv env) {<a name="line.134"></a> |
| <span class="sourceLineNo">135</span> setState(ProcedureProtos.ProcedureState.RUNNABLE);<a name="line.135"></a> |
| <span class="sourceLineNo">136</span> env.getProcedureScheduler().addFront(this);<a name="line.136"></a> |
| <span class="sourceLineNo">137</span> return false;<a name="line.137"></a> |
| <span class="sourceLineNo">138</span> }<a name="line.138"></a> |
| <span class="sourceLineNo">139</span><a name="line.139"></a> |
| <span class="sourceLineNo">140</span> @Override<a name="line.140"></a> |
| <span class="sourceLineNo">141</span> protected void rollback(MasterProcedureEnv env) throws IOException, InterruptedException {<a name="line.141"></a> |
| <span class="sourceLineNo">142</span> throw new UnsupportedOperationException();<a name="line.142"></a> |
| <span class="sourceLineNo">143</span> }<a name="line.143"></a> |
| <span class="sourceLineNo">144</span><a name="line.144"></a> |
| <span class="sourceLineNo">145</span> @Override<a name="line.145"></a> |
| <span class="sourceLineNo">146</span> protected boolean abort(MasterProcedureEnv env) {<a name="line.146"></a> |
| <span class="sourceLineNo">147</span> return false;<a name="line.147"></a> |
| <span class="sourceLineNo">148</span> }<a name="line.148"></a> |
| <span class="sourceLineNo">149</span><a name="line.149"></a> |
| <span class="sourceLineNo">150</span> @Override<a name="line.150"></a> |
| <span class="sourceLineNo">151</span> protected void serializeStateData(ProcedureStateSerializer serializer) throws IOException {<a name="line.151"></a> |
| <span class="sourceLineNo">152</span> serializer.serialize(ClaimReplicationQueuesStateData.newBuilder()<a name="line.152"></a> |
| <span class="sourceLineNo">153</span> .setCrashedServer(ProtobufUtil.toServerName(crashedServer)).build());<a name="line.153"></a> |
| <span class="sourceLineNo">154</span> }<a name="line.154"></a> |
| <span class="sourceLineNo">155</span><a name="line.155"></a> |
| <span class="sourceLineNo">156</span> @Override<a name="line.156"></a> |
| <span class="sourceLineNo">157</span> protected void deserializeStateData(ProcedureStateSerializer serializer) throws IOException {<a name="line.157"></a> |
| <span class="sourceLineNo">158</span> ClaimReplicationQueuesStateData data =<a name="line.158"></a> |
| <span class="sourceLineNo">159</span> serializer.deserialize(ClaimReplicationQueuesStateData.class);<a name="line.159"></a> |
| <span class="sourceLineNo">160</span> crashedServer = ProtobufUtil.toServerName(data.getCrashedServer());<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> |
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