| <!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN" "http://www.w3.org/TR/html4/loose.dtd"> |
| <html lang="en"> |
| <head> |
| <title>Source code</title> |
| <link rel="stylesheet" type="text/css" href="../../../../../../stylesheet.css" title="Style"> |
| </head> |
| <body> |
| <div class="sourceContainer"> |
| <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.client;<a name="line.18"></a> |
| <span class="sourceLineNo">019</span><a name="line.19"></a> |
| <span class="sourceLineNo">020</span>import static org.junit.Assert.assertArrayEquals;<a name="line.20"></a> |
| <span class="sourceLineNo">021</span>import static org.junit.Assert.assertTrue;<a name="line.21"></a> |
| <span class="sourceLineNo">022</span><a name="line.22"></a> |
| <span class="sourceLineNo">023</span>import java.util.Arrays;<a name="line.23"></a> |
| <span class="sourceLineNo">024</span>import java.util.List;<a name="line.24"></a> |
| <span class="sourceLineNo">025</span>import org.apache.hadoop.conf.Configuration;<a name="line.25"></a> |
| <span class="sourceLineNo">026</span>import org.apache.hadoop.hbase.HBaseClassTestRule;<a name="line.26"></a> |
| <span class="sourceLineNo">027</span>import org.apache.hadoop.hbase.HBaseTestingUtil;<a name="line.27"></a> |
| <span class="sourceLineNo">028</span>import org.apache.hadoop.hbase.HConstants;<a name="line.28"></a> |
| <span class="sourceLineNo">029</span>import org.apache.hadoop.hbase.HRegionLocation;<a name="line.29"></a> |
| <span class="sourceLineNo">030</span>import org.apache.hadoop.hbase.MetaTableAccessor;<a name="line.30"></a> |
| <span class="sourceLineNo">031</span>import org.apache.hadoop.hbase.ServerName;<a name="line.31"></a> |
| <span class="sourceLineNo">032</span>import org.apache.hadoop.hbase.TableName;<a name="line.32"></a> |
| <span class="sourceLineNo">033</span>import org.apache.hadoop.hbase.regionserver.StorefileRefresherChore;<a name="line.33"></a> |
| <span class="sourceLineNo">034</span>import org.apache.hadoop.hbase.testclassification.MediumTests;<a name="line.34"></a> |
| <span class="sourceLineNo">035</span>import org.apache.hadoop.hbase.testclassification.MiscTests;<a name="line.35"></a> |
| <span class="sourceLineNo">036</span>import org.apache.hadoop.hbase.util.Bytes;<a name="line.36"></a> |
| <span class="sourceLineNo">037</span>import org.apache.hadoop.hbase.zookeeper.ZKUtil;<a name="line.37"></a> |
| <span class="sourceLineNo">038</span>import org.apache.hadoop.hbase.zookeeper.ZKWatcher;<a name="line.38"></a> |
| <span class="sourceLineNo">039</span>import org.apache.hadoop.hbase.zookeeper.ZNodePaths;<a name="line.39"></a> |
| <span class="sourceLineNo">040</span>import org.junit.BeforeClass;<a name="line.40"></a> |
| <span class="sourceLineNo">041</span>import org.junit.ClassRule;<a name="line.41"></a> |
| <span class="sourceLineNo">042</span>import org.junit.Test;<a name="line.42"></a> |
| <span class="sourceLineNo">043</span>import org.junit.experimental.categories.Category;<a name="line.43"></a> |
| <span class="sourceLineNo">044</span>import org.slf4j.Logger;<a name="line.44"></a> |
| <span class="sourceLineNo">045</span>import org.slf4j.LoggerFactory;<a name="line.45"></a> |
| <span class="sourceLineNo">046</span><a name="line.46"></a> |
| <span class="sourceLineNo">047</span>import org.apache.hadoop.hbase.shaded.protobuf.ProtobufUtil;<a name="line.47"></a> |
| <span class="sourceLineNo">048</span><a name="line.48"></a> |
| <span class="sourceLineNo">049</span>@Category({ MiscTests.class, MediumTests.class })<a name="line.49"></a> |
| <span class="sourceLineNo">050</span>public class TestMetaWithReplicasShutdownHandling extends MetaWithReplicasTestBase {<a name="line.50"></a> |
| <span class="sourceLineNo">051</span><a name="line.51"></a> |
| <span class="sourceLineNo">052</span> @ClassRule<a name="line.52"></a> |
| <span class="sourceLineNo">053</span> public static final HBaseClassTestRule CLASS_RULE =<a name="line.53"></a> |
| <span class="sourceLineNo">054</span> HBaseClassTestRule.forClass(TestMetaWithReplicasShutdownHandling.class);<a name="line.54"></a> |
| <span class="sourceLineNo">055</span><a name="line.55"></a> |
| <span class="sourceLineNo">056</span> private static final Logger LOG =<a name="line.56"></a> |
| <span class="sourceLineNo">057</span> LoggerFactory.getLogger(TestMetaWithReplicasShutdownHandling.class);<a name="line.57"></a> |
| <span class="sourceLineNo">058</span><a name="line.58"></a> |
| <span class="sourceLineNo">059</span> @BeforeClass<a name="line.59"></a> |
| <span class="sourceLineNo">060</span> public static void setUp() throws Exception {<a name="line.60"></a> |
| <span class="sourceLineNo">061</span> startCluster();<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> @Test<a name="line.64"></a> |
| <span class="sourceLineNo">065</span> public void testShutdownHandling() throws Exception {<a name="line.65"></a> |
| <span class="sourceLineNo">066</span> // This test creates a table, flushes the meta (with 3 replicas), kills the<a name="line.66"></a> |
| <span class="sourceLineNo">067</span> // server holding the primary meta replica. Then it does a put/get into/from<a name="line.67"></a> |
| <span class="sourceLineNo">068</span> // the test table. The put/get operations would use the replicas to locate the<a name="line.68"></a> |
| <span class="sourceLineNo">069</span> // location of the test table's region<a name="line.69"></a> |
| <span class="sourceLineNo">070</span> shutdownMetaAndDoValidations(TEST_UTIL);<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> public static void shutdownMetaAndDoValidations(HBaseTestingUtil util) throws Exception {<a name="line.73"></a> |
| <span class="sourceLineNo">074</span> // This test creates a table, flushes the meta (with 3 replicas), kills the<a name="line.74"></a> |
| <span class="sourceLineNo">075</span> // server holding the primary meta replica. Then it does a put/get into/from<a name="line.75"></a> |
| <span class="sourceLineNo">076</span> // the test table. The put/get operations would use the replicas to locate the<a name="line.76"></a> |
| <span class="sourceLineNo">077</span> // location of the test table's region<a name="line.77"></a> |
| <span class="sourceLineNo">078</span> ZKWatcher zkw = util.getZooKeeperWatcher();<a name="line.78"></a> |
| <span class="sourceLineNo">079</span> Configuration conf = util.getConfiguration();<a name="line.79"></a> |
| <span class="sourceLineNo">080</span> conf.setBoolean(HConstants.USE_META_REPLICAS, true);<a name="line.80"></a> |
| <span class="sourceLineNo">081</span><a name="line.81"></a> |
| <span class="sourceLineNo">082</span> String baseZNode =<a name="line.82"></a> |
| <span class="sourceLineNo">083</span> conf.get(HConstants.ZOOKEEPER_ZNODE_PARENT, HConstants.DEFAULT_ZOOKEEPER_ZNODE_PARENT);<a name="line.83"></a> |
| <span class="sourceLineNo">084</span> String primaryMetaZnode =<a name="line.84"></a> |
| <span class="sourceLineNo">085</span> ZNodePaths.joinZNode(baseZNode, conf.get("zookeeper.znode.metaserver", "meta-region-server"));<a name="line.85"></a> |
| <span class="sourceLineNo">086</span> byte[] data = ZKUtil.getData(zkw, primaryMetaZnode);<a name="line.86"></a> |
| <span class="sourceLineNo">087</span> ServerName primary = ProtobufUtil.toServerName(data);<a name="line.87"></a> |
| <span class="sourceLineNo">088</span> LOG.info("Primary=" + primary.toString());<a name="line.88"></a> |
| <span class="sourceLineNo">089</span><a name="line.89"></a> |
| <span class="sourceLineNo">090</span> TableName TABLE = TableName.valueOf("testShutdownHandling");<a name="line.90"></a> |
| <span class="sourceLineNo">091</span> byte[][] FAMILIES = new byte[][] { Bytes.toBytes("foo") };<a name="line.91"></a> |
| <span class="sourceLineNo">092</span> if (util.getAdmin().tableExists(TABLE)) {<a name="line.92"></a> |
| <span class="sourceLineNo">093</span> util.getAdmin().disableTable(TABLE);<a name="line.93"></a> |
| <span class="sourceLineNo">094</span> util.getAdmin().deleteTable(TABLE);<a name="line.94"></a> |
| <span class="sourceLineNo">095</span> }<a name="line.95"></a> |
| <span class="sourceLineNo">096</span> byte[] row = Bytes.toBytes("test");<a name="line.96"></a> |
| <span class="sourceLineNo">097</span> ServerName master = null;<a name="line.97"></a> |
| <span class="sourceLineNo">098</span> try (Connection c = ConnectionFactory.createConnection(util.getConfiguration())) {<a name="line.98"></a> |
| <span class="sourceLineNo">099</span> try (Table htable = util.createTable(TABLE, FAMILIES)) {<a name="line.99"></a> |
| <span class="sourceLineNo">100</span> util.getAdmin().flush(TableName.META_TABLE_NAME);<a name="line.100"></a> |
| <span class="sourceLineNo">101</span> Thread.sleep(<a name="line.101"></a> |
| <span class="sourceLineNo">102</span> conf.getInt(StorefileRefresherChore.REGIONSERVER_STOREFILE_REFRESH_PERIOD, 30000) * 6);<a name="line.102"></a> |
| <span class="sourceLineNo">103</span> List<RegionInfo> regions = MetaTableAccessor.getTableRegions(c, TABLE);<a name="line.103"></a> |
| <span class="sourceLineNo">104</span> HRegionLocation hrl = MetaTableAccessor.getRegionLocation(c, regions.get(0));<a name="line.104"></a> |
| <span class="sourceLineNo">105</span> // Ensure that the primary server for test table is not the same one as the primary<a name="line.105"></a> |
| <span class="sourceLineNo">106</span> // of the meta region since we will be killing the srv holding the meta's primary...<a name="line.106"></a> |
| <span class="sourceLineNo">107</span> // We want to be able to write to the test table even when the meta is not present ..<a name="line.107"></a> |
| <span class="sourceLineNo">108</span> // If the servers are the same, then move the test table's region out of the server<a name="line.108"></a> |
| <span class="sourceLineNo">109</span> // to another random server<a name="line.109"></a> |
| <span class="sourceLineNo">110</span> if (hrl.getServerName().equals(primary)) {<a name="line.110"></a> |
| <span class="sourceLineNo">111</span> util.getAdmin().move(hrl.getRegion().getEncodedNameAsBytes());<a name="line.111"></a> |
| <span class="sourceLineNo">112</span> // wait for the move to complete<a name="line.112"></a> |
| <span class="sourceLineNo">113</span> do {<a name="line.113"></a> |
| <span class="sourceLineNo">114</span> Thread.sleep(10);<a name="line.114"></a> |
| <span class="sourceLineNo">115</span> hrl = MetaTableAccessor.getRegionLocation(c, regions.get(0));<a name="line.115"></a> |
| <span class="sourceLineNo">116</span> } while (primary.equals(hrl.getServerName()));<a name="line.116"></a> |
| <span class="sourceLineNo">117</span> util.getAdmin().flush(TableName.META_TABLE_NAME);<a name="line.117"></a> |
| <span class="sourceLineNo">118</span> Thread.sleep(<a name="line.118"></a> |
| <span class="sourceLineNo">119</span> conf.getInt(StorefileRefresherChore.REGIONSERVER_STOREFILE_REFRESH_PERIOD, 30000) * 3);<a name="line.119"></a> |
| <span class="sourceLineNo">120</span> }<a name="line.120"></a> |
| <span class="sourceLineNo">121</span> // Ensure all metas are not on same hbase:meta replica=0 server!<a name="line.121"></a> |
| <span class="sourceLineNo">122</span><a name="line.122"></a> |
| <span class="sourceLineNo">123</span> master = util.getHBaseClusterInterface().getClusterMetrics().getMasterName();<a name="line.123"></a> |
| <span class="sourceLineNo">124</span> // kill the master so that regionserver recovery is not triggered at all<a name="line.124"></a> |
| <span class="sourceLineNo">125</span> // for the meta server<a name="line.125"></a> |
| <span class="sourceLineNo">126</span> LOG.info("Stopping master=" + master.toString());<a name="line.126"></a> |
| <span class="sourceLineNo">127</span> util.getHBaseClusterInterface().stopMaster(master);<a name="line.127"></a> |
| <span class="sourceLineNo">128</span> util.getHBaseClusterInterface().waitForMasterToStop(master, 60000);<a name="line.128"></a> |
| <span class="sourceLineNo">129</span> LOG.info("Master " + master + " stopped!");<a name="line.129"></a> |
| <span class="sourceLineNo">130</span> if (!master.equals(primary)) {<a name="line.130"></a> |
| <span class="sourceLineNo">131</span> util.getHBaseClusterInterface().killRegionServer(primary);<a name="line.131"></a> |
| <span class="sourceLineNo">132</span> util.getHBaseClusterInterface().waitForRegionServerToStop(primary, 60000);<a name="line.132"></a> |
| <span class="sourceLineNo">133</span> }<a name="line.133"></a> |
| <span class="sourceLineNo">134</span> c.clearRegionLocationCache();<a name="line.134"></a> |
| <span class="sourceLineNo">135</span> }<a name="line.135"></a> |
| <span class="sourceLineNo">136</span> LOG.info("Running GETs");<a name="line.136"></a> |
| <span class="sourceLineNo">137</span> try (Table htable = c.getTable(TABLE)) {<a name="line.137"></a> |
| <span class="sourceLineNo">138</span> Put put = new Put(row);<a name="line.138"></a> |
| <span class="sourceLineNo">139</span> put.addColumn(Bytes.toBytes("foo"), row, row);<a name="line.139"></a> |
| <span class="sourceLineNo">140</span> BufferedMutator m = c.getBufferedMutator(TABLE);<a name="line.140"></a> |
| <span class="sourceLineNo">141</span> m.mutate(put);<a name="line.141"></a> |
| <span class="sourceLineNo">142</span> m.flush();<a name="line.142"></a> |
| <span class="sourceLineNo">143</span> // Try to do a get of the row that was just put<a name="line.143"></a> |
| <span class="sourceLineNo">144</span> Result r = htable.get(new Get(row));<a name="line.144"></a> |
| <span class="sourceLineNo">145</span> assertTrue(Arrays.equals(r.getRow(), row));<a name="line.145"></a> |
| <span class="sourceLineNo">146</span> // now start back the killed servers and disable use of replicas. That would mean<a name="line.146"></a> |
| <span class="sourceLineNo">147</span> // calls go to the primary<a name="line.147"></a> |
| <span class="sourceLineNo">148</span> LOG.info("Starting Master");<a name="line.148"></a> |
| <span class="sourceLineNo">149</span> util.getHBaseClusterInterface().startMaster(master.getHostname(), 0);<a name="line.149"></a> |
| <span class="sourceLineNo">150</span> util.getHBaseClusterInterface().startRegionServer(primary.getHostname(), 0);<a name="line.150"></a> |
| <span class="sourceLineNo">151</span> util.getHBaseClusterInterface().waitForActiveAndReadyMaster();<a name="line.151"></a> |
| <span class="sourceLineNo">152</span> LOG.info("Master active!");<a name="line.152"></a> |
| <span class="sourceLineNo">153</span> c.clearRegionLocationCache();<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> conf.setBoolean(HConstants.USE_META_REPLICAS, false);<a name="line.156"></a> |
| <span class="sourceLineNo">157</span> LOG.info("Running GETs no replicas");<a name="line.157"></a> |
| <span class="sourceLineNo">158</span> try (Connection c = ConnectionFactory.createConnection(conf);<a name="line.158"></a> |
| <span class="sourceLineNo">159</span> Table htable = c.getTable(TABLE)) {<a name="line.159"></a> |
| <span class="sourceLineNo">160</span> Result r = htable.get(new Get(row));<a name="line.160"></a> |
| <span class="sourceLineNo">161</span> assertArrayEquals(row, r.getRow());<a name="line.161"></a> |
| <span class="sourceLineNo">162</span> }<a name="line.162"></a> |
| <span class="sourceLineNo">163</span> }<a name="line.163"></a> |
| <span class="sourceLineNo">164</span>}<a name="line.164"></a> |
| |
| |
| |
| |
| |
| |
| |
| |
| |
| |
| |
| |
| |
| |
| |
| |
| |
| |
| |
| |
| |
| |
| |
| |
| |
| |
| |
| |
| |
| |
| |
| |
| |
| |
| |
| |
| |
| |
| |
| |
| |
| |
| |
| |
| |
| |
| |
| |
| |
| |
| |
| |
| |
| |
| |
| |
| |
| |
| |
| |
| </pre> |
| </div> |
| </body> |
| </html> |
