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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.io.InterruptedIOException;<a name="line.21"></a>
<span class="sourceLineNo">022</span>import java.util.HashMap;<a name="line.22"></a>
<span class="sourceLineNo">023</span>import java.util.Map;<a name="line.23"></a>
<span class="sourceLineNo">024</span>import org.apache.hadoop.hbase.MetaTableAccessor;<a name="line.24"></a>
<span class="sourceLineNo">025</span>import org.apache.hadoop.hbase.TableName;<a name="line.25"></a>
<span class="sourceLineNo">026</span>import org.apache.hadoop.hbase.client.Connection;<a name="line.26"></a>
<span class="sourceLineNo">027</span>import org.apache.hadoop.hbase.client.TableDescriptor;<a name="line.27"></a>
<span class="sourceLineNo">028</span>import org.apache.hadoop.hbase.master.TableStateManager;<a name="line.28"></a>
<span class="sourceLineNo">029</span>import org.apache.hadoop.hbase.master.TableStateManager.TableStateNotFoundException;<a name="line.29"></a>
<span class="sourceLineNo">030</span>import org.apache.hadoop.hbase.master.procedure.MasterProcedureEnv;<a name="line.30"></a>
<span class="sourceLineNo">031</span>import org.apache.hadoop.hbase.master.procedure.PeerProcedureInterface;<a name="line.31"></a>
<span class="sourceLineNo">032</span>import org.apache.hadoop.hbase.master.procedure.ProcedurePrepareLatch;<a name="line.32"></a>
<span class="sourceLineNo">033</span>import org.apache.hadoop.hbase.replication.ReplicationException;<a name="line.33"></a>
<span class="sourceLineNo">034</span>import org.apache.hadoop.hbase.replication.ReplicationPeerConfig;<a name="line.34"></a>
<span class="sourceLineNo">035</span>import org.apache.hadoop.hbase.replication.ReplicationQueueStorage;<a name="line.35"></a>
<span class="sourceLineNo">036</span>import org.apache.hadoop.hbase.replication.ReplicationUtils;<a name="line.36"></a>
<span class="sourceLineNo">037</span>import org.apache.hadoop.hbase.util.Pair;<a name="line.37"></a>
<span class="sourceLineNo">038</span>import org.apache.yetus.audience.InterfaceAudience;<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.annotations.VisibleForTesting;<a name="line.42"></a>
<span class="sourceLineNo">043</span><a name="line.43"></a>
<span class="sourceLineNo">044</span>/**<a name="line.44"></a>
<span class="sourceLineNo">045</span> * The base class for all replication peer related procedure.<a name="line.45"></a>
<span class="sourceLineNo">046</span> */<a name="line.46"></a>
<span class="sourceLineNo">047</span>@InterfaceAudience.Private<a name="line.47"></a>
<span class="sourceLineNo">048</span>public abstract class AbstractPeerProcedure&lt;TState&gt; extends AbstractPeerNoLockProcedure&lt;TState&gt;<a name="line.48"></a>
<span class="sourceLineNo">049</span> implements PeerProcedureInterface {<a name="line.49"></a>
<span class="sourceLineNo">050</span><a name="line.50"></a>
<span class="sourceLineNo">051</span> private static final Logger LOG = LoggerFactory.getLogger(AbstractPeerProcedure.class);<a name="line.51"></a>
<span class="sourceLineNo">052</span><a name="line.52"></a>
<span class="sourceLineNo">053</span> protected static final int UPDATE_LAST_SEQ_ID_BATCH_SIZE = 1000;<a name="line.53"></a>
<span class="sourceLineNo">054</span><a name="line.54"></a>
<span class="sourceLineNo">055</span> // The sleep interval when waiting table to be enabled or disabled.<a name="line.55"></a>
<span class="sourceLineNo">056</span> protected static final int SLEEP_INTERVAL_MS = 1000;<a name="line.56"></a>
<span class="sourceLineNo">057</span><a name="line.57"></a>
<span class="sourceLineNo">058</span> // used to keep compatible with old client where we can only returns after updateStorage.<a name="line.58"></a>
<span class="sourceLineNo">059</span> protected ProcedurePrepareLatch latch;<a name="line.59"></a>
<span class="sourceLineNo">060</span><a name="line.60"></a>
<span class="sourceLineNo">061</span> protected AbstractPeerProcedure() {<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> protected AbstractPeerProcedure(String peerId) {<a name="line.64"></a>
<span class="sourceLineNo">065</span> super(peerId);<a name="line.65"></a>
<span class="sourceLineNo">066</span> this.latch = ProcedurePrepareLatch.createLatch(2, 1);<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> public ProcedurePrepareLatch getLatch() {<a name="line.69"></a>
<span class="sourceLineNo">070</span> return latch;<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> @Override<a name="line.73"></a>
<span class="sourceLineNo">074</span> protected LockState acquireLock(MasterProcedureEnv env) {<a name="line.74"></a>
<span class="sourceLineNo">075</span> if (env.getProcedureScheduler().waitPeerExclusiveLock(this, peerId)) {<a name="line.75"></a>
<span class="sourceLineNo">076</span> return LockState.LOCK_EVENT_WAIT;<a name="line.76"></a>
<span class="sourceLineNo">077</span> }<a name="line.77"></a>
<span class="sourceLineNo">078</span> return LockState.LOCK_ACQUIRED;<a name="line.78"></a>
<span class="sourceLineNo">079</span> }<a name="line.79"></a>
<span class="sourceLineNo">080</span><a name="line.80"></a>
<span class="sourceLineNo">081</span> @Override<a name="line.81"></a>
<span class="sourceLineNo">082</span> protected void releaseLock(MasterProcedureEnv env) {<a name="line.82"></a>
<span class="sourceLineNo">083</span> env.getProcedureScheduler().wakePeerExclusiveLock(this, peerId);<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> @Override<a name="line.86"></a>
<span class="sourceLineNo">087</span> protected boolean holdLock(MasterProcedureEnv env) {<a name="line.87"></a>
<span class="sourceLineNo">088</span> return true;<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> protected final void refreshPeer(MasterProcedureEnv env, PeerOperationType type) {<a name="line.91"></a>
<span class="sourceLineNo">092</span> addChildProcedure(env.getMasterServices().getServerManager().getOnlineServersList().stream()<a name="line.92"></a>
<span class="sourceLineNo">093</span> .map(sn -&gt; new RefreshPeerProcedure(peerId, type, sn)).toArray(RefreshPeerProcedure[]::new));<a name="line.93"></a>
<span class="sourceLineNo">094</span> }<a name="line.94"></a>
<span class="sourceLineNo">095</span><a name="line.95"></a>
<span class="sourceLineNo">096</span> // will be override in test to simulate error<a name="line.96"></a>
<span class="sourceLineNo">097</span> @VisibleForTesting<a name="line.97"></a>
<span class="sourceLineNo">098</span> protected void enablePeer(MasterProcedureEnv env) throws ReplicationException {<a name="line.98"></a>
<span class="sourceLineNo">099</span> env.getReplicationPeerManager().enablePeer(peerId);<a name="line.99"></a>
<span class="sourceLineNo">100</span> }<a name="line.100"></a>
<span class="sourceLineNo">101</span><a name="line.101"></a>
<span class="sourceLineNo">102</span> private void addToMap(Map&lt;String, Long&gt; lastSeqIds, String encodedRegionName, long barrier,<a name="line.102"></a>
<span class="sourceLineNo">103</span> ReplicationQueueStorage queueStorage) throws ReplicationException {<a name="line.103"></a>
<span class="sourceLineNo">104</span> if (barrier &gt;= 0) {<a name="line.104"></a>
<span class="sourceLineNo">105</span> lastSeqIds.put(encodedRegionName, barrier);<a name="line.105"></a>
<span class="sourceLineNo">106</span> if (lastSeqIds.size() &gt;= UPDATE_LAST_SEQ_ID_BATCH_SIZE) {<a name="line.106"></a>
<span class="sourceLineNo">107</span> queueStorage.setLastSequenceIds(peerId, lastSeqIds);<a name="line.107"></a>
<span class="sourceLineNo">108</span> lastSeqIds.clear();<a name="line.108"></a>
<span class="sourceLineNo">109</span> }<a name="line.109"></a>
<span class="sourceLineNo">110</span> }<a name="line.110"></a>
<span class="sourceLineNo">111</span> }<a name="line.111"></a>
<span class="sourceLineNo">112</span><a name="line.112"></a>
<span class="sourceLineNo">113</span> protected final void setLastPushedSequenceId(MasterProcedureEnv env,<a name="line.113"></a>
<span class="sourceLineNo">114</span> ReplicationPeerConfig peerConfig) throws IOException, ReplicationException {<a name="line.114"></a>
<span class="sourceLineNo">115</span> Map&lt;String, Long&gt; lastSeqIds = new HashMap&lt;String, Long&gt;();<a name="line.115"></a>
<span class="sourceLineNo">116</span> for (TableDescriptor td : env.getMasterServices().getTableDescriptors().getAll().values()) {<a name="line.116"></a>
<span class="sourceLineNo">117</span> if (!td.hasGlobalReplicationScope()) {<a name="line.117"></a>
<span class="sourceLineNo">118</span> continue;<a name="line.118"></a>
<span class="sourceLineNo">119</span> }<a name="line.119"></a>
<span class="sourceLineNo">120</span> TableName tn = td.getTableName();<a name="line.120"></a>
<span class="sourceLineNo">121</span> if (!ReplicationUtils.contains(peerConfig, tn)) {<a name="line.121"></a>
<span class="sourceLineNo">122</span> continue;<a name="line.122"></a>
<span class="sourceLineNo">123</span> }<a name="line.123"></a>
<span class="sourceLineNo">124</span> setLastPushedSequenceIdForTable(env, tn, lastSeqIds);<a name="line.124"></a>
<span class="sourceLineNo">125</span> }<a name="line.125"></a>
<span class="sourceLineNo">126</span> if (!lastSeqIds.isEmpty()) {<a name="line.126"></a>
<span class="sourceLineNo">127</span> env.getReplicationPeerManager().getQueueStorage().setLastSequenceIds(peerId, lastSeqIds);<a name="line.127"></a>
<span class="sourceLineNo">128</span> }<a name="line.128"></a>
<span class="sourceLineNo">129</span> }<a name="line.129"></a>
<span class="sourceLineNo">130</span><a name="line.130"></a>
<span class="sourceLineNo">131</span> // If the table is currently disabling, then we need to wait until it is disabled.We will write<a name="line.131"></a>
<span class="sourceLineNo">132</span> // replication barrier for a disabled table. And return whether we need to update the last pushed<a name="line.132"></a>
<span class="sourceLineNo">133</span> // sequence id, if the table has been deleted already, i.e, we hit TableStateNotFoundException,<a name="line.133"></a>
<span class="sourceLineNo">134</span> // then we do not need to update last pushed sequence id for this table.<a name="line.134"></a>
<span class="sourceLineNo">135</span> private boolean needSetLastPushedSequenceId(TableStateManager tsm, TableName tn)<a name="line.135"></a>
<span class="sourceLineNo">136</span> throws IOException {<a name="line.136"></a>
<span class="sourceLineNo">137</span> for (;;) {<a name="line.137"></a>
<span class="sourceLineNo">138</span> try {<a name="line.138"></a>
<span class="sourceLineNo">139</span> if (!tsm.getTableState(tn).isDisabling()) {<a name="line.139"></a>
<span class="sourceLineNo">140</span> return true;<a name="line.140"></a>
<span class="sourceLineNo">141</span> }<a name="line.141"></a>
<span class="sourceLineNo">142</span> Thread.sleep(SLEEP_INTERVAL_MS);<a name="line.142"></a>
<span class="sourceLineNo">143</span> } catch (TableStateNotFoundException e) {<a name="line.143"></a>
<span class="sourceLineNo">144</span> return false;<a name="line.144"></a>
<span class="sourceLineNo">145</span> } catch (InterruptedException e) {<a name="line.145"></a>
<span class="sourceLineNo">146</span> throw (IOException) new InterruptedIOException(e.getMessage()).initCause(e);<a name="line.146"></a>
<span class="sourceLineNo">147</span> }<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><a name="line.150"></a>
<span class="sourceLineNo">151</span> // Will put the encodedRegionName-&gt;lastPushedSeqId pair into the map passed in, if the map is<a name="line.151"></a>
<span class="sourceLineNo">152</span> // large enough we will call queueStorage.setLastSequenceIds and clear the map. So the caller<a name="line.152"></a>
<span class="sourceLineNo">153</span> // should not forget to check whether the map is empty at last, if not you should call<a name="line.153"></a>
<span class="sourceLineNo">154</span> // queueStorage.setLastSequenceIds to write out the remaining entries in the map.<a name="line.154"></a>
<span class="sourceLineNo">155</span> protected final void setLastPushedSequenceIdForTable(MasterProcedureEnv env, TableName tableName,<a name="line.155"></a>
<span class="sourceLineNo">156</span> Map&lt;String, Long&gt; lastSeqIds) throws IOException, ReplicationException {<a name="line.156"></a>
<span class="sourceLineNo">157</span> TableStateManager tsm = env.getMasterServices().getTableStateManager();<a name="line.157"></a>
<span class="sourceLineNo">158</span> ReplicationQueueStorage queueStorage = env.getReplicationPeerManager().getQueueStorage();<a name="line.158"></a>
<span class="sourceLineNo">159</span> Connection conn = env.getMasterServices().getConnection();<a name="line.159"></a>
<span class="sourceLineNo">160</span> if (!needSetLastPushedSequenceId(tsm, tableName)) {<a name="line.160"></a>
<span class="sourceLineNo">161</span> LOG.debug("Skip settting last pushed sequence id for {}", tableName);<a name="line.161"></a>
<span class="sourceLineNo">162</span> return;<a name="line.162"></a>
<span class="sourceLineNo">163</span> }<a name="line.163"></a>
<span class="sourceLineNo">164</span> for (Pair&lt;String, Long&gt; name2Barrier : MetaTableAccessor<a name="line.164"></a>
<span class="sourceLineNo">165</span> .getTableEncodedRegionNameAndLastBarrier(conn, tableName)) {<a name="line.165"></a>
<span class="sourceLineNo">166</span> LOG.trace("Update last pushed sequence id for {}, {}", tableName, name2Barrier);<a name="line.166"></a>
<span class="sourceLineNo">167</span> addToMap(lastSeqIds, name2Barrier.getFirst(), name2Barrier.getSecond().longValue() - 1,<a name="line.167"></a>
<span class="sourceLineNo">168</span> queueStorage);<a name="line.168"></a>
<span class="sourceLineNo">169</span> }<a name="line.169"></a>
<span class="sourceLineNo">170</span> }<a name="line.170"></a>
<span class="sourceLineNo">171</span>}<a name="line.171"></a>
</pre>
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