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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.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 org.apache.hadoop.conf.Configuration;<a name="line.21"></a> |
| <span class="sourceLineNo">022</span>import org.apache.hadoop.conf.Configured;<a name="line.22"></a> |
| <span class="sourceLineNo">023</span>import org.apache.hadoop.fs.FileSystem;<a name="line.23"></a> |
| <span class="sourceLineNo">024</span>import org.apache.hadoop.hbase.Abortable;<a name="line.24"></a> |
| <span class="sourceLineNo">025</span>import org.apache.hadoop.hbase.HBaseConfiguration;<a name="line.25"></a> |
| <span class="sourceLineNo">026</span>import org.apache.hadoop.hbase.HBaseInterfaceAudience;<a name="line.26"></a> |
| <span class="sourceLineNo">027</span>import org.apache.hadoop.hbase.zookeeper.ZKWatcher;<a name="line.27"></a> |
| <span class="sourceLineNo">028</span>import org.apache.hadoop.util.Tool;<a name="line.28"></a> |
| <span class="sourceLineNo">029</span>import org.apache.hadoop.util.ToolRunner;<a name="line.29"></a> |
| <span class="sourceLineNo">030</span>import org.apache.yetus.audience.InterfaceAudience;<a name="line.30"></a> |
| <span class="sourceLineNo">031</span>import org.slf4j.Logger;<a name="line.31"></a> |
| <span class="sourceLineNo">032</span>import org.slf4j.LoggerFactory;<a name="line.32"></a> |
| <span class="sourceLineNo">033</span><a name="line.33"></a> |
| <span class="sourceLineNo">034</span>/**<a name="line.34"></a> |
| <span class="sourceLineNo">035</span> * A tool for copying replication peer data across different replication peer storages.<a name="line.35"></a> |
| <span class="sourceLineNo">036</span> * <p/><a name="line.36"></a> |
| <span class="sourceLineNo">037</span> * Notice that we will not delete the replication peer data from the source storage, as this tool<a name="line.37"></a> |
| <span class="sourceLineNo">038</span> * can also be used by online migration. See HBASE-27110 for the whole design.<a name="line.38"></a> |
| <span class="sourceLineNo">039</span> */<a name="line.39"></a> |
| <span class="sourceLineNo">040</span>@InterfaceAudience.LimitedPrivate(HBaseInterfaceAudience.TOOLS)<a name="line.40"></a> |
| <span class="sourceLineNo">041</span>public class CopyReplicationPeers extends Configured implements Tool {<a name="line.41"></a> |
| <span class="sourceLineNo">042</span><a name="line.42"></a> |
| <span class="sourceLineNo">043</span> private static final Logger LOG = LoggerFactory.getLogger(CopyReplicationPeers.class);<a name="line.43"></a> |
| <span class="sourceLineNo">044</span><a name="line.44"></a> |
| <span class="sourceLineNo">045</span> public static final String NAME = "copyreppeers";<a name="line.45"></a> |
| <span class="sourceLineNo">046</span><a name="line.46"></a> |
| <span class="sourceLineNo">047</span> public CopyReplicationPeers(Configuration conf) {<a name="line.47"></a> |
| <span class="sourceLineNo">048</span> super(conf);<a name="line.48"></a> |
| <span class="sourceLineNo">049</span> }<a name="line.49"></a> |
| <span class="sourceLineNo">050</span><a name="line.50"></a> |
| <span class="sourceLineNo">051</span> private ReplicationPeerStorage create(String type, FileSystem fs, ZKWatcher zk) {<a name="line.51"></a> |
| <span class="sourceLineNo">052</span> Configuration conf = new Configuration(getConf());<a name="line.52"></a> |
| <span class="sourceLineNo">053</span> conf.set(ReplicationStorageFactory.REPLICATION_PEER_STORAGE_IMPL, type);<a name="line.53"></a> |
| <span class="sourceLineNo">054</span> return ReplicationStorageFactory.getReplicationPeerStorage(fs, zk, conf);<a name="line.54"></a> |
| <span class="sourceLineNo">055</span> }<a name="line.55"></a> |
| <span class="sourceLineNo">056</span><a name="line.56"></a> |
| <span class="sourceLineNo">057</span> private ZKWatcher createZKWatcher() throws IOException {<a name="line.57"></a> |
| <span class="sourceLineNo">058</span> return new ZKWatcher(getConf(), getClass().getSimpleName(), new Abortable() {<a name="line.58"></a> |
| <span class="sourceLineNo">059</span><a name="line.59"></a> |
| <span class="sourceLineNo">060</span> private volatile boolean aborted;<a name="line.60"></a> |
| <span class="sourceLineNo">061</span><a name="line.61"></a> |
| <span class="sourceLineNo">062</span> @Override<a name="line.62"></a> |
| <span class="sourceLineNo">063</span> public boolean isAborted() {<a name="line.63"></a> |
| <span class="sourceLineNo">064</span> return aborted;<a name="line.64"></a> |
| <span class="sourceLineNo">065</span> }<a name="line.65"></a> |
| <span class="sourceLineNo">066</span><a name="line.66"></a> |
| <span class="sourceLineNo">067</span> @Override<a name="line.67"></a> |
| <span class="sourceLineNo">068</span> public void abort(String why, Throwable e) {<a name="line.68"></a> |
| <span class="sourceLineNo">069</span> aborted = true;<a name="line.69"></a> |
| <span class="sourceLineNo">070</span> LOG.error(why, e);<a name="line.70"></a> |
| <span class="sourceLineNo">071</span> System.exit(1);<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> }<a name="line.74"></a> |
| <span class="sourceLineNo">075</span><a name="line.75"></a> |
| <span class="sourceLineNo">076</span> private void migrate(ReplicationPeerStorage src, ReplicationPeerStorage dst)<a name="line.76"></a> |
| <span class="sourceLineNo">077</span> throws ReplicationException {<a name="line.77"></a> |
| <span class="sourceLineNo">078</span> LOG.info("Start migrating from {} to {}", src.getClass().getSimpleName(),<a name="line.78"></a> |
| <span class="sourceLineNo">079</span> dst.getClass().getSimpleName());<a name="line.79"></a> |
| <span class="sourceLineNo">080</span> for (String peerId : src.listPeerIds()) {<a name="line.80"></a> |
| <span class="sourceLineNo">081</span> LOG.info("Going to migrate {}", peerId);<a name="line.81"></a> |
| <span class="sourceLineNo">082</span> ReplicationPeerConfig peerConfig = src.getPeerConfig(peerId);<a name="line.82"></a> |
| <span class="sourceLineNo">083</span> boolean enabled = src.isPeerEnabled(peerId);<a name="line.83"></a> |
| <span class="sourceLineNo">084</span> SyncReplicationState syncState = src.getPeerSyncReplicationState(peerId);<a name="line.84"></a> |
| <span class="sourceLineNo">085</span> SyncReplicationState newSyncState = src.getPeerNewSyncReplicationState(peerId);<a name="line.85"></a> |
| <span class="sourceLineNo">086</span> if (newSyncState != SyncReplicationState.NONE) {<a name="line.86"></a> |
| <span class="sourceLineNo">087</span> throw new IllegalStateException("Can not migrate peer " + peerId<a name="line.87"></a> |
| <span class="sourceLineNo">088</span> + " as it is in an intermediate state, syncReplicationState is " + syncState<a name="line.88"></a> |
| <span class="sourceLineNo">089</span> + " while newSyncReplicationState is " + newSyncState);<a name="line.89"></a> |
| <span class="sourceLineNo">090</span> }<a name="line.90"></a> |
| <span class="sourceLineNo">091</span> dst.addPeer(peerId, peerConfig, enabled, syncState);<a name="line.91"></a> |
| <span class="sourceLineNo">092</span> LOG.info("Migrated peer {}, peerConfig = '{}', enabled = {}, syncReplicationState = {}",<a name="line.92"></a> |
| <span class="sourceLineNo">093</span> peerId, peerConfig, enabled, syncState);<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><a name="line.96"></a> |
| <span class="sourceLineNo">097</span> @Override<a name="line.97"></a> |
| <span class="sourceLineNo">098</span> public int run(String[] args) throws Exception {<a name="line.98"></a> |
| <span class="sourceLineNo">099</span> if (args.length != 2) {<a name="line.99"></a> |
| <span class="sourceLineNo">100</span> System.err.println("Usage: bin/hbase " + NAME<a name="line.100"></a> |
| <span class="sourceLineNo">101</span> + " <SRC_REPLICATION_PEER_STORAGE> <DST_REPLICATION_PEER_STORAGE>");<a name="line.101"></a> |
| <span class="sourceLineNo">102</span> System.err.println("The possible values for replication storage type:");<a name="line.102"></a> |
| <span class="sourceLineNo">103</span> for (ReplicationPeerStorageType type : ReplicationPeerStorageType.values()) {<a name="line.103"></a> |
| <span class="sourceLineNo">104</span> System.err.println(" " + type.name().toLowerCase());<a name="line.104"></a> |
| <span class="sourceLineNo">105</span> }<a name="line.105"></a> |
| <span class="sourceLineNo">106</span> return -1;<a name="line.106"></a> |
| <span class="sourceLineNo">107</span> }<a name="line.107"></a> |
| <span class="sourceLineNo">108</span> FileSystem fs = FileSystem.get(getConf());<a name="line.108"></a> |
| <span class="sourceLineNo">109</span> try (ZKWatcher zk = createZKWatcher()) {<a name="line.109"></a> |
| <span class="sourceLineNo">110</span> ReplicationPeerStorage src = create(args[0], fs, zk);<a name="line.110"></a> |
| <span class="sourceLineNo">111</span> ReplicationPeerStorage dst = create(args[1], fs, zk);<a name="line.111"></a> |
| <span class="sourceLineNo">112</span> migrate(src, dst);<a name="line.112"></a> |
| <span class="sourceLineNo">113</span> }<a name="line.113"></a> |
| <span class="sourceLineNo">114</span> return 0;<a name="line.114"></a> |
| <span class="sourceLineNo">115</span> }<a name="line.115"></a> |
| <span class="sourceLineNo">116</span><a name="line.116"></a> |
| <span class="sourceLineNo">117</span> public static void main(String[] args) throws Exception {<a name="line.117"></a> |
| <span class="sourceLineNo">118</span> Configuration conf = HBaseConfiguration.create();<a name="line.118"></a> |
| <span class="sourceLineNo">119</span> int ret = ToolRunner.run(conf, new CopyReplicationPeers(conf), args);<a name="line.119"></a> |
| <span class="sourceLineNo">120</span> System.exit(ret);<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> |
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