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| <pre><span class="source-line-no">001</span><span id="line-1">/*</span> |
| <span class="source-line-no">002</span><span id="line-2"> * Licensed to the Apache Software Foundation (ASF) under one</span> |
| <span class="source-line-no">003</span><span id="line-3"> * or more contributor license agreements. See the NOTICE file</span> |
| <span class="source-line-no">004</span><span id="line-4"> * distributed with this work for additional information</span> |
| <span class="source-line-no">005</span><span id="line-5"> * regarding copyright ownership. The ASF licenses this file</span> |
| <span class="source-line-no">006</span><span id="line-6"> * to you under the Apache License, Version 2.0 (the</span> |
| <span class="source-line-no">007</span><span id="line-7"> * "License"); you may not use this file except in compliance</span> |
| <span class="source-line-no">008</span><span id="line-8"> * with the License. You may obtain a copy of the License at</span> |
| <span class="source-line-no">009</span><span id="line-9"> *</span> |
| <span class="source-line-no">010</span><span id="line-10"> * http://www.apache.org/licenses/LICENSE-2.0</span> |
| <span class="source-line-no">011</span><span id="line-11"> *</span> |
| <span class="source-line-no">012</span><span id="line-12"> * Unless required by applicable law or agreed to in writing, software</span> |
| <span class="source-line-no">013</span><span id="line-13"> * distributed under the License is distributed on an "AS IS" BASIS,</span> |
| <span class="source-line-no">014</span><span id="line-14"> * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.</span> |
| <span class="source-line-no">015</span><span id="line-15"> * See the License for the specific language governing permissions and</span> |
| <span class="source-line-no">016</span><span id="line-16"> * limitations under the License.</span> |
| <span class="source-line-no">017</span><span id="line-17"> */</span> |
| <span class="source-line-no">018</span><span id="line-18">package org.apache.hadoop.hbase.client.example;</span> |
| <span class="source-line-no">019</span><span id="line-19"></span> |
| <span class="source-line-no">020</span><span id="line-20">import java.io.Closeable;</span> |
| <span class="source-line-no">021</span><span id="line-21">import java.io.IOException;</span> |
| <span class="source-line-no">022</span><span id="line-22">import org.apache.hadoop.conf.Configuration;</span> |
| <span class="source-line-no">023</span><span id="line-23">import org.apache.hadoop.conf.Configured;</span> |
| <span class="source-line-no">024</span><span id="line-24">import org.apache.hadoop.hbase.HBaseConfiguration;</span> |
| <span class="source-line-no">025</span><span id="line-25">import org.apache.hadoop.hbase.HConstants;</span> |
| <span class="source-line-no">026</span><span id="line-26">import org.apache.hadoop.hbase.TableName;</span> |
| <span class="source-line-no">027</span><span id="line-27">import org.apache.hadoop.hbase.client.Connection;</span> |
| <span class="source-line-no">028</span><span id="line-28">import org.apache.hadoop.hbase.client.ConnectionFactory;</span> |
| <span class="source-line-no">029</span><span id="line-29">import org.apache.hadoop.hbase.client.Table;</span> |
| <span class="source-line-no">030</span><span id="line-30">import org.apache.hadoop.hbase.client.coprocessor.Batch;</span> |
| <span class="source-line-no">031</span><span id="line-31">import org.apache.hadoop.hbase.ipc.CoprocessorRpcUtils.BlockingRpcCallback;</span> |
| <span class="source-line-no">032</span><span id="line-32">import org.apache.hadoop.hbase.ipc.ServerRpcController;</span> |
| <span class="source-line-no">033</span><span id="line-33">import org.apache.hadoop.util.Tool;</span> |
| <span class="source-line-no">034</span><span id="line-34">import org.apache.hadoop.util.ToolRunner;</span> |
| <span class="source-line-no">035</span><span id="line-35">import org.apache.yetus.audience.InterfaceAudience;</span> |
| <span class="source-line-no">036</span><span id="line-36">import org.slf4j.Logger;</span> |
| <span class="source-line-no">037</span><span id="line-37">import org.slf4j.LoggerFactory;</span> |
| <span class="source-line-no">038</span><span id="line-38"></span> |
| <span class="source-line-no">039</span><span id="line-39">import org.apache.hadoop.hbase.shaded.protobuf.generated.RefreshHFilesProtos;</span> |
| <span class="source-line-no">040</span><span id="line-40"></span> |
| <span class="source-line-no">041</span><span id="line-41">/**</span> |
| <span class="source-line-no">042</span><span id="line-42"> * This client class is for invoking the refresh HFile function deployed on the Region Server side</span> |
| <span class="source-line-no">043</span><span id="line-43"> * via the RefreshHFilesService.</span> |
| <span class="source-line-no">044</span><span id="line-44"> */</span> |
| <span class="source-line-no">045</span><span id="line-45">@InterfaceAudience.Private</span> |
| <span class="source-line-no">046</span><span id="line-46">public class RefreshHFilesClient extends Configured implements Tool, Closeable {</span> |
| <span class="source-line-no">047</span><span id="line-47"> private static final Logger LOG = LoggerFactory.getLogger(RefreshHFilesClient.class);</span> |
| <span class="source-line-no">048</span><span id="line-48"> private final Connection connection;</span> |
| <span class="source-line-no">049</span><span id="line-49"></span> |
| <span class="source-line-no">050</span><span id="line-50"> /**</span> |
| <span class="source-line-no">051</span><span id="line-51"> * Constructor with Conf object</span> |
| <span class="source-line-no">052</span><span id="line-52"> * @param cfg the {@link Configuration} object to use</span> |
| <span class="source-line-no">053</span><span id="line-53"> */</span> |
| <span class="source-line-no">054</span><span id="line-54"> public RefreshHFilesClient(Configuration cfg) {</span> |
| <span class="source-line-no">055</span><span id="line-55"> try {</span> |
| <span class="source-line-no">056</span><span id="line-56"> this.connection = ConnectionFactory.createConnection(cfg);</span> |
| <span class="source-line-no">057</span><span id="line-57"> } catch (IOException e) {</span> |
| <span class="source-line-no">058</span><span id="line-58"> throw new RuntimeException(e);</span> |
| <span class="source-line-no">059</span><span id="line-59"> }</span> |
| <span class="source-line-no">060</span><span id="line-60"> }</span> |
| <span class="source-line-no">061</span><span id="line-61"></span> |
| <span class="source-line-no">062</span><span id="line-62"> @Override</span> |
| <span class="source-line-no">063</span><span id="line-63"> public void close() throws IOException {</span> |
| <span class="source-line-no">064</span><span id="line-64"> if (this.connection != null && !this.connection.isClosed()) {</span> |
| <span class="source-line-no">065</span><span id="line-65"> this.connection.close();</span> |
| <span class="source-line-no">066</span><span id="line-66"> }</span> |
| <span class="source-line-no">067</span><span id="line-67"> }</span> |
| <span class="source-line-no">068</span><span id="line-68"></span> |
| <span class="source-line-no">069</span><span id="line-69"> public void refreshHFiles(final TableName tableName) throws Throwable {</span> |
| <span class="source-line-no">070</span><span id="line-70"> try (Table table = connection.getTable(tableName)) {</span> |
| <span class="source-line-no">071</span><span id="line-71"> refreshHFiles(table);</span> |
| <span class="source-line-no">072</span><span id="line-72"> }</span> |
| <span class="source-line-no">073</span><span id="line-73"> }</span> |
| <span class="source-line-no">074</span><span id="line-74"></span> |
| <span class="source-line-no">075</span><span id="line-75"> public void refreshHFiles(final Table table) throws Throwable {</span> |
| <span class="source-line-no">076</span><span id="line-76"> final RefreshHFilesProtos.RefreshHFilesRequest request =</span> |
| <span class="source-line-no">077</span><span id="line-77"> RefreshHFilesProtos.RefreshHFilesRequest.getDefaultInstance();</span> |
| <span class="source-line-no">078</span><span id="line-78"> table.coprocessorService(RefreshHFilesProtos.RefreshHFilesService.class,</span> |
| <span class="source-line-no">079</span><span id="line-79"> HConstants.EMPTY_START_ROW, HConstants.EMPTY_END_ROW, new Batch.Call<</span> |
| <span class="source-line-no">080</span><span id="line-80"> RefreshHFilesProtos.RefreshHFilesService, RefreshHFilesProtos.RefreshHFilesResponse>() {</span> |
| <span class="source-line-no">081</span><span id="line-81"> @Override</span> |
| <span class="source-line-no">082</span><span id="line-82"> public RefreshHFilesProtos.RefreshHFilesResponse</span> |
| <span class="source-line-no">083</span><span id="line-83"> call(RefreshHFilesProtos.RefreshHFilesService refreshHFilesService) throws IOException {</span> |
| <span class="source-line-no">084</span><span id="line-84"> ServerRpcController controller = new ServerRpcController();</span> |
| <span class="source-line-no">085</span><span id="line-85"> BlockingRpcCallback<RefreshHFilesProtos.RefreshHFilesResponse> rpcCallback =</span> |
| <span class="source-line-no">086</span><span id="line-86"> new BlockingRpcCallback<>();</span> |
| <span class="source-line-no">087</span><span id="line-87"> refreshHFilesService.refreshHFiles(controller, request, rpcCallback);</span> |
| <span class="source-line-no">088</span><span id="line-88"></span> |
| <span class="source-line-no">089</span><span id="line-89"> if (controller.failedOnException()) {</span> |
| <span class="source-line-no">090</span><span id="line-90"> throw controller.getFailedOn();</span> |
| <span class="source-line-no">091</span><span id="line-91"> }</span> |
| <span class="source-line-no">092</span><span id="line-92"></span> |
| <span class="source-line-no">093</span><span id="line-93"> return rpcCallback.get();</span> |
| <span class="source-line-no">094</span><span id="line-94"> }</span> |
| <span class="source-line-no">095</span><span id="line-95"> });</span> |
| <span class="source-line-no">096</span><span id="line-96"> LOG.debug("Done refreshing HFiles");</span> |
| <span class="source-line-no">097</span><span id="line-97"> }</span> |
| <span class="source-line-no">098</span><span id="line-98"></span> |
| <span class="source-line-no">099</span><span id="line-99"> @Override</span> |
| <span class="source-line-no">100</span><span id="line-100"> public int run(String[] args) throws Exception {</span> |
| <span class="source-line-no">101</span><span id="line-101"> if (args.length != 1) {</span> |
| <span class="source-line-no">102</span><span id="line-102"> String message = "When there are multiple HBase clusters are sharing a common root dir, "</span> |
| <span class="source-line-no">103</span><span id="line-103"> + "especially for read replica cluster (see detail in HBASE-18477), please consider to "</span> |
| <span class="source-line-no">104</span><span id="line-104"> + "use this tool manually sync the flushed HFiles from the source cluster.";</span> |
| <span class="source-line-no">105</span><span id="line-105"> message += "\nUsage: " + this.getClass().getName() + " tableName";</span> |
| <span class="source-line-no">106</span><span id="line-106"> System.out.println(message);</span> |
| <span class="source-line-no">107</span><span id="line-107"> return -1;</span> |
| <span class="source-line-no">108</span><span id="line-108"> }</span> |
| <span class="source-line-no">109</span><span id="line-109"> final TableName tableName = TableName.valueOf(args[0]);</span> |
| <span class="source-line-no">110</span><span id="line-110"> try {</span> |
| <span class="source-line-no">111</span><span id="line-111"> refreshHFiles(tableName);</span> |
| <span class="source-line-no">112</span><span id="line-112"> } catch (Throwable t) {</span> |
| <span class="source-line-no">113</span><span id="line-113"> LOG.error("Refresh HFiles from table " + tableName.getNameAsString() + " failed: ", t);</span> |
| <span class="source-line-no">114</span><span id="line-114"> return -1;</span> |
| <span class="source-line-no">115</span><span id="line-115"> }</span> |
| <span class="source-line-no">116</span><span id="line-116"> return 0;</span> |
| <span class="source-line-no">117</span><span id="line-117"> }</span> |
| <span class="source-line-no">118</span><span id="line-118"></span> |
| <span class="source-line-no">119</span><span id="line-119"> public static void main(String[] args) throws Exception {</span> |
| <span class="source-line-no">120</span><span id="line-120"> ToolRunner.run(new RefreshHFilesClient(HBaseConfiguration.create()), args);</span> |
| <span class="source-line-no">121</span><span id="line-121"> }</span> |
| <span class="source-line-no">122</span><span id="line-122">}</span> |
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| </pre> |
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