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Posted to commits@hbase.apache.org by gi...@apache.org on 2018/11/18 14:51:17 UTC

[1/9] hbase-site git commit: Published site at f555258e7abab1337ee4d39aaa1dafff72be287b.

Repository: hbase-site
Updated Branches:
  refs/heads/asf-site fa0fd3b83 -> fa03a0520


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+<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.snapshot;<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.assertNull;<a name="line.20"></a>
+<span class="sourceLineNo">021</span><a name="line.21"></a>
+<span class="sourceLineNo">022</span>import java.io.IOException;<a name="line.22"></a>
+<span class="sourceLineNo">023</span>import java.io.UncheckedIOException;<a name="line.23"></a>
+<span class="sourceLineNo">024</span>import org.apache.hadoop.hbase.HBaseClassTestRule;<a name="line.24"></a>
+<span class="sourceLineNo">025</span>import org.apache.hadoop.hbase.HBaseTestingUtility;<a name="line.25"></a>
+<span class="sourceLineNo">026</span>import org.apache.hadoop.hbase.TableName;<a name="line.26"></a>
+<span class="sourceLineNo">027</span>import org.apache.hadoop.hbase.client.ResultScanner;<a name="line.27"></a>
+<span class="sourceLineNo">028</span>import org.apache.hadoop.hbase.client.Table;<a name="line.28"></a>
+<span class="sourceLineNo">029</span>import org.apache.hadoop.hbase.master.locking.LockManager.MasterLock;<a name="line.29"></a>
+<span class="sourceLineNo">030</span>import org.apache.hadoop.hbase.master.locking.LockProcedure;<a name="line.30"></a>
+<span class="sourceLineNo">031</span>import org.apache.hadoop.hbase.master.procedure.MasterProcedureEnv;<a name="line.31"></a>
+<span class="sourceLineNo">032</span>import org.apache.hadoop.hbase.procedure2.LockType;<a name="line.32"></a>
+<span class="sourceLineNo">033</span>import org.apache.hadoop.hbase.procedure2.ProcedureExecutor;<a name="line.33"></a>
+<span class="sourceLineNo">034</span>import org.apache.hadoop.hbase.testclassification.MasterTests;<a name="line.34"></a>
+<span class="sourceLineNo">035</span>import org.apache.hadoop.hbase.testclassification.MediumTests;<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.junit.AfterClass;<a name="line.37"></a>
+<span class="sourceLineNo">038</span>import org.junit.BeforeClass;<a name="line.38"></a>
+<span class="sourceLineNo">039</span>import org.junit.ClassRule;<a name="line.39"></a>
+<span class="sourceLineNo">040</span>import org.junit.Test;<a name="line.40"></a>
+<span class="sourceLineNo">041</span>import org.junit.experimental.categories.Category;<a name="line.41"></a>
+<span class="sourceLineNo">042</span><a name="line.42"></a>
+<span class="sourceLineNo">043</span>@Category({ MasterTests.class, MediumTests.class })<a name="line.43"></a>
+<span class="sourceLineNo">044</span>public class TestSnapshotWhileRSCrashes {<a name="line.44"></a>
+<span class="sourceLineNo">045</span><a name="line.45"></a>
+<span class="sourceLineNo">046</span>  @ClassRule<a name="line.46"></a>
+<span class="sourceLineNo">047</span>  public static final HBaseClassTestRule CLASS_RULE =<a name="line.47"></a>
+<span class="sourceLineNo">048</span>    HBaseClassTestRule.forClass(TestSnapshotWhileRSCrashes.class);<a name="line.48"></a>
+<span class="sourceLineNo">049</span><a name="line.49"></a>
+<span class="sourceLineNo">050</span>  private static final HBaseTestingUtility UTIL = new HBaseTestingUtility();<a name="line.50"></a>
+<span class="sourceLineNo">051</span><a name="line.51"></a>
+<span class="sourceLineNo">052</span>  private static TableName NAME = TableName.valueOf("Cleanup");<a name="line.52"></a>
+<span class="sourceLineNo">053</span><a name="line.53"></a>
+<span class="sourceLineNo">054</span>  private static byte[] CF = Bytes.toBytes("cf");<a name="line.54"></a>
+<span class="sourceLineNo">055</span><a name="line.55"></a>
+<span class="sourceLineNo">056</span>  @BeforeClass<a name="line.56"></a>
+<span class="sourceLineNo">057</span>  public static void setUp() throws Exception {<a name="line.57"></a>
+<span class="sourceLineNo">058</span>    UTIL.startMiniCluster(3);<a name="line.58"></a>
+<span class="sourceLineNo">059</span>    UTIL.createMultiRegionTable(NAME, CF);<a name="line.59"></a>
+<span class="sourceLineNo">060</span>    UTIL.waitTableAvailable(NAME);<a name="line.60"></a>
+<span class="sourceLineNo">061</span>  }<a name="line.61"></a>
+<span class="sourceLineNo">062</span><a name="line.62"></a>
+<span class="sourceLineNo">063</span>  @AfterClass<a name="line.63"></a>
+<span class="sourceLineNo">064</span>  public static void tearDown() throws Exception {<a name="line.64"></a>
+<span class="sourceLineNo">065</span>    UTIL.shutdownMiniCluster();<a name="line.65"></a>
+<span class="sourceLineNo">066</span>  }<a name="line.66"></a>
+<span class="sourceLineNo">067</span><a name="line.67"></a>
+<span class="sourceLineNo">068</span>  @Test<a name="line.68"></a>
+<span class="sourceLineNo">069</span>  public void test() throws InterruptedException, IOException {<a name="line.69"></a>
+<span class="sourceLineNo">070</span>    String snName = "sn";<a name="line.70"></a>
+<span class="sourceLineNo">071</span>    MasterLock lock = UTIL.getMiniHBaseCluster().getMaster().getLockManager().createMasterLock(NAME,<a name="line.71"></a>
+<span class="sourceLineNo">072</span>      LockType.EXCLUSIVE, "for testing");<a name="line.72"></a>
+<span class="sourceLineNo">073</span>    lock.acquire();<a name="line.73"></a>
+<span class="sourceLineNo">074</span>    Thread t = new Thread(() -&gt; {<a name="line.74"></a>
+<span class="sourceLineNo">075</span>      try {<a name="line.75"></a>
+<span class="sourceLineNo">076</span>        UTIL.getAdmin().snapshot(snName, NAME);<a name="line.76"></a>
+<span class="sourceLineNo">077</span>      } catch (IOException e) {<a name="line.77"></a>
+<span class="sourceLineNo">078</span>        throw new UncheckedIOException(e);<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>    t.setDaemon(true);<a name="line.81"></a>
+<span class="sourceLineNo">082</span>    t.start();<a name="line.82"></a>
+<span class="sourceLineNo">083</span>    ProcedureExecutor&lt;MasterProcedureEnv&gt; procExec =<a name="line.83"></a>
+<span class="sourceLineNo">084</span>      UTIL.getMiniHBaseCluster().getMaster().getMasterProcedureExecutor();<a name="line.84"></a>
+<span class="sourceLineNo">085</span>    UTIL.waitFor(10000,<a name="line.85"></a>
+<span class="sourceLineNo">086</span>      () -&gt; procExec.getProcedures().stream().filter(p -&gt; !p.isFinished())<a name="line.86"></a>
+<span class="sourceLineNo">087</span>        .filter(p -&gt; p instanceof LockProcedure).map(p -&gt; (LockProcedure) p)<a name="line.87"></a>
+<span class="sourceLineNo">088</span>        .filter(p -&gt; NAME.equals(p.getTableName())).anyMatch(p -&gt; !p.isLocked()));<a name="line.88"></a>
+<span class="sourceLineNo">089</span>    UTIL.getMiniHBaseCluster().stopRegionServer(0);<a name="line.89"></a>
+<span class="sourceLineNo">090</span>    lock.release();<a name="line.90"></a>
+<span class="sourceLineNo">091</span>    // the snapshot can not work properly when there are rs crashes, so here we just want to make<a name="line.91"></a>
+<span class="sourceLineNo">092</span>    // sure that the regions could online<a name="line.92"></a>
+<span class="sourceLineNo">093</span>    try (Table table = UTIL.getConnection().getTable(NAME);<a name="line.93"></a>
+<span class="sourceLineNo">094</span>        ResultScanner scanner = table.getScanner(CF)) {<a name="line.94"></a>
+<span class="sourceLineNo">095</span>      assertNull(scanner.next());<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>}<a name="line.98"></a>
+
+
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+
+</pre>
+</div>
+</body>
+</html>

[2/9] hbase-site git commit: Published site at f555258e7abab1337ee4d39aaa1dafff72be287b.

Posted by gi...@apache.org.

http://git-wip-us.apache.org/repos/asf/hbase-site/blob/fa03a052/devapidocs/src-html/org/apache/hadoop/hbase/master/snapshot/TakeSnapshotHandler.html
----------------------------------------------------------------------
diff --git a/devapidocs/src-html/org/apache/hadoop/hbase/master/snapshot/TakeSnapshotHandler.html b/devapidocs/src-html/org/apache/hadoop/hbase/master/snapshot/TakeSnapshotHandler.html
index 4ebdb3f..59324bd 100644
--- a/devapidocs/src-html/org/apache/hadoop/hbase/master/snapshot/TakeSnapshotHandler.html
+++ b/devapidocs/src-html/org/apache/hadoop/hbase/master/snapshot/TakeSnapshotHandler.html
@@ -52,313 +52,332 @@
 <span class="sourceLineNo">044</span>import org.apache.hadoop.hbase.master.MetricsSnapshot;<a name="line.44"></a>
 <span class="sourceLineNo">045</span>import org.apache.hadoop.hbase.master.SnapshotSentinel;<a name="line.45"></a>
 <span class="sourceLineNo">046</span>import org.apache.hadoop.hbase.master.locking.LockManager;<a name="line.46"></a>
-<span class="sourceLineNo">047</span>import org.apache.hadoop.hbase.monitoring.MonitoredTask;<a name="line.47"></a>
-<span class="sourceLineNo">048</span>import org.apache.hadoop.hbase.monitoring.TaskMonitor;<a name="line.48"></a>
-<span class="sourceLineNo">049</span>import org.apache.hadoop.hbase.procedure2.LockType;<a name="line.49"></a>
-<span class="sourceLineNo">050</span>import org.apache.hadoop.hbase.snapshot.ClientSnapshotDescriptionUtils;<a name="line.50"></a>
-<span class="sourceLineNo">051</span>import org.apache.hadoop.hbase.snapshot.SnapshotCreationException;<a name="line.51"></a>
-<span class="sourceLineNo">052</span>import org.apache.hadoop.hbase.snapshot.SnapshotDescriptionUtils;<a name="line.52"></a>
-<span class="sourceLineNo">053</span>import org.apache.hadoop.hbase.snapshot.SnapshotManifest;<a name="line.53"></a>
-<span class="sourceLineNo">054</span>import org.apache.hadoop.hbase.util.FSUtils;<a name="line.54"></a>
-<span class="sourceLineNo">055</span>import org.apache.hadoop.hbase.util.Pair;<a name="line.55"></a>
-<span class="sourceLineNo">056</span>import org.apache.hadoop.hbase.zookeeper.MetaTableLocator;<a name="line.56"></a>
-<span class="sourceLineNo">057</span>import org.apache.yetus.audience.InterfaceAudience;<a name="line.57"></a>
-<span class="sourceLineNo">058</span>import org.apache.zookeeper.KeeperException;<a name="line.58"></a>
-<span class="sourceLineNo">059</span>import org.slf4j.Logger;<a name="line.59"></a>
-<span class="sourceLineNo">060</span>import org.slf4j.LoggerFactory;<a name="line.60"></a>
-<span class="sourceLineNo">061</span><a name="line.61"></a>
-<span class="sourceLineNo">062</span>import org.apache.hbase.thirdparty.com.google.common.base.Preconditions;<a name="line.62"></a>
-<span class="sourceLineNo">063</span>import org.apache.hadoop.hbase.shaded.protobuf.generated.SnapshotProtos.SnapshotDescription;<a name="line.63"></a>
-<span class="sourceLineNo">064</span><a name="line.64"></a>
-<span class="sourceLineNo">065</span>/**<a name="line.65"></a>
-<span class="sourceLineNo">066</span> * A handler for taking snapshots from the master.<a name="line.66"></a>
-<span class="sourceLineNo">067</span> *<a name="line.67"></a>
-<span class="sourceLineNo">068</span> * This is not a subclass of TableEventHandler because using that would incur an extra hbase:meta scan.<a name="line.68"></a>
-<span class="sourceLineNo">069</span> *<a name="line.69"></a>
-<span class="sourceLineNo">070</span> * The {@link #snapshotRegions(List)} call should get implemented for each snapshot flavor.<a name="line.70"></a>
-<span class="sourceLineNo">071</span> */<a name="line.71"></a>
-<span class="sourceLineNo">072</span>@InterfaceAudience.Private<a name="line.72"></a>
-<span class="sourceLineNo">073</span>public abstract class TakeSnapshotHandler extends EventHandler implements SnapshotSentinel,<a name="line.73"></a>
-<span class="sourceLineNo">074</span>    ForeignExceptionSnare {<a name="line.74"></a>
-<span class="sourceLineNo">075</span>  private static final Logger LOG = LoggerFactory.getLogger(TakeSnapshotHandler.class);<a name="line.75"></a>
-<span class="sourceLineNo">076</span><a name="line.76"></a>
-<span class="sourceLineNo">077</span>  private volatile boolean finished;<a name="line.77"></a>
-<span class="sourceLineNo">078</span><a name="line.78"></a>
-<span class="sourceLineNo">079</span>  // none of these should ever be null<a name="line.79"></a>
-<span class="sourceLineNo">080</span>  protected final MasterServices master;<a name="line.80"></a>
-<span class="sourceLineNo">081</span>  protected final MetricsSnapshot metricsSnapshot = new MetricsSnapshot();<a name="line.81"></a>
-<span class="sourceLineNo">082</span>  protected final SnapshotDescription snapshot;<a name="line.82"></a>
-<span class="sourceLineNo">083</span>  protected final Configuration conf;<a name="line.83"></a>
-<span class="sourceLineNo">084</span>  protected final FileSystem rootFs;<a name="line.84"></a>
-<span class="sourceLineNo">085</span>  protected final FileSystem workingDirFs;<a name="line.85"></a>
-<span class="sourceLineNo">086</span>  protected final Path rootDir;<a name="line.86"></a>
-<span class="sourceLineNo">087</span>  private final Path snapshotDir;<a name="line.87"></a>
-<span class="sourceLineNo">088</span>  protected final Path workingDir;<a name="line.88"></a>
-<span class="sourceLineNo">089</span>  private final MasterSnapshotVerifier verifier;<a name="line.89"></a>
-<span class="sourceLineNo">090</span>  protected final ForeignExceptionDispatcher monitor;<a name="line.90"></a>
-<span class="sourceLineNo">091</span>  protected final LockManager.MasterLock tableLock;<a name="line.91"></a>
-<span class="sourceLineNo">092</span>  protected final MonitoredTask status;<a name="line.92"></a>
-<span class="sourceLineNo">093</span>  protected final TableName snapshotTable;<a name="line.93"></a>
-<span class="sourceLineNo">094</span>  protected final SnapshotManifest snapshotManifest;<a name="line.94"></a>
-<span class="sourceLineNo">095</span>  protected final SnapshotManager snapshotManager;<a name="line.95"></a>
-<span class="sourceLineNo">096</span><a name="line.96"></a>
-<span class="sourceLineNo">097</span>  protected TableDescriptor htd;<a name="line.97"></a>
-<span class="sourceLineNo">098</span><a name="line.98"></a>
-<span class="sourceLineNo">099</span>  /**<a name="line.99"></a>
-<span class="sourceLineNo">100</span>   * @param snapshot descriptor of the snapshot to take<a name="line.100"></a>
-<span class="sourceLineNo">101</span>   * @param masterServices master services provider<a name="line.101"></a>
-<span class="sourceLineNo">102</span>   * @throws IllegalArgumentException if the working snapshot directory set from the<a name="line.102"></a>
-<span class="sourceLineNo">103</span>   *   configuration is the same as the completed snapshot directory<a name="line.103"></a>
-<span class="sourceLineNo">104</span>   * @throws IOException if the file system of the working snapshot directory cannot be<a name="line.104"></a>
-<span class="sourceLineNo">105</span>   *   determined<a name="line.105"></a>
-<span class="sourceLineNo">106</span>   */<a name="line.106"></a>
-<span class="sourceLineNo">107</span>  public TakeSnapshotHandler(SnapshotDescription snapshot, final MasterServices masterServices,<a name="line.107"></a>
-<span class="sourceLineNo">108</span>                             final SnapshotManager snapshotManager) throws IOException {<a name="line.108"></a>
-<span class="sourceLineNo">109</span>    super(masterServices, EventType.C_M_SNAPSHOT_TABLE);<a name="line.109"></a>
-<span class="sourceLineNo">110</span>    assert snapshot != null : "SnapshotDescription must not be nul1";<a name="line.110"></a>
-<span class="sourceLineNo">111</span>    assert masterServices != null : "MasterServices must not be nul1";<a name="line.111"></a>
-<span class="sourceLineNo">112</span>    this.master = masterServices;<a name="line.112"></a>
-<span class="sourceLineNo">113</span>    this.conf = this.master.getConfiguration();<a name="line.113"></a>
-<span class="sourceLineNo">114</span>    this.rootDir = this.master.getMasterFileSystem().getRootDir();<a name="line.114"></a>
-<span class="sourceLineNo">115</span>    this.workingDir = SnapshotDescriptionUtils.getWorkingSnapshotDir(snapshot, rootDir, conf);<a name="line.115"></a>
-<span class="sourceLineNo">116</span>    Preconditions.checkArgument(!SnapshotDescriptionUtils.isSubDirectoryOf(workingDir, rootDir) ||<a name="line.116"></a>
-<span class="sourceLineNo">117</span>            SnapshotDescriptionUtils.isWithinDefaultWorkingDir(workingDir, conf),<a name="line.117"></a>
-<span class="sourceLineNo">118</span>        "The working directory " + workingDir + " cannot be in the root directory unless it is "<a name="line.118"></a>
-<span class="sourceLineNo">119</span>            + "within the default working directory");<a name="line.119"></a>
-<span class="sourceLineNo">120</span><a name="line.120"></a>
-<span class="sourceLineNo">121</span>    this.snapshot = snapshot;<a name="line.121"></a>
-<span class="sourceLineNo">122</span>    this.snapshotManager = snapshotManager;<a name="line.122"></a>
-<span class="sourceLineNo">123</span>    this.snapshotTable = TableName.valueOf(snapshot.getTable());<a name="line.123"></a>
-<span class="sourceLineNo">124</span>    this.rootFs = this.master.getMasterFileSystem().getFileSystem();<a name="line.124"></a>
-<span class="sourceLineNo">125</span>    this.snapshotDir = SnapshotDescriptionUtils.getCompletedSnapshotDir(snapshot, rootDir);<a name="line.125"></a>
-<span class="sourceLineNo">126</span>    this.workingDirFs = this.workingDir.getFileSystem(this.conf);<a name="line.126"></a>
-<span class="sourceLineNo">127</span>    this.monitor = new ForeignExceptionDispatcher(snapshot.getName());<a name="line.127"></a>
-<span class="sourceLineNo">128</span>    this.snapshotManifest = SnapshotManifest.create(conf, rootFs, workingDir, snapshot, monitor);<a name="line.128"></a>
-<span class="sourceLineNo">129</span><a name="line.129"></a>
-<span class="sourceLineNo">130</span>    this.tableLock = master.getLockManager().createMasterLock(<a name="line.130"></a>
-<span class="sourceLineNo">131</span>        snapshotTable, LockType.EXCLUSIVE,<a name="line.131"></a>
-<span class="sourceLineNo">132</span>        this.getClass().getName() + ": take snapshot " + snapshot.getName());<a name="line.132"></a>
-<span class="sourceLineNo">133</span><a name="line.133"></a>
-<span class="sourceLineNo">134</span>    // prepare the verify<a name="line.134"></a>
-<span class="sourceLineNo">135</span>    this.verifier = new MasterSnapshotVerifier(masterServices, snapshot, workingDirFs);<a name="line.135"></a>
-<span class="sourceLineNo">136</span>    // update the running tasks<a name="line.136"></a>
-<span class="sourceLineNo">137</span>    this.status = TaskMonitor.get().createStatus(<a name="line.137"></a>
-<span class="sourceLineNo">138</span>      "Taking " + snapshot.getType() + " snapshot on table: " + snapshotTable);<a name="line.138"></a>
-<span class="sourceLineNo">139</span>  }<a name="line.139"></a>
-<span class="sourceLineNo">140</span><a name="line.140"></a>
-<span class="sourceLineNo">141</span>  private TableDescriptor loadTableDescriptor()<a name="line.141"></a>
-<span class="sourceLineNo">142</span>      throws FileNotFoundException, IOException {<a name="line.142"></a>
-<span class="sourceLineNo">143</span>    TableDescriptor htd =<a name="line.143"></a>
-<span class="sourceLineNo">144</span>      this.master.getTableDescriptors().get(snapshotTable);<a name="line.144"></a>
-<span class="sourceLineNo">145</span>    if (htd == null) {<a name="line.145"></a>
-<span class="sourceLineNo">146</span>      throw new IOException("TableDescriptor missing for " + snapshotTable);<a name="line.146"></a>
-<span class="sourceLineNo">147</span>    }<a name="line.147"></a>
-<span class="sourceLineNo">148</span>    return htd;<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>  @Override<a name="line.151"></a>
-<span class="sourceLineNo">152</span>  public TakeSnapshotHandler prepare() throws Exception {<a name="line.152"></a>
-<span class="sourceLineNo">153</span>    super.prepare();<a name="line.153"></a>
-<span class="sourceLineNo">154</span>    // after this, you should ensure to release this lock in case of exceptions<a name="line.154"></a>
-<span class="sourceLineNo">155</span>    this.tableLock.acquire();<a name="line.155"></a>
-<span class="sourceLineNo">156</span>    try {<a name="line.156"></a>
-<span class="sourceLineNo">157</span>      this.htd = loadTableDescriptor(); // check that .tableinfo is present<a name="line.157"></a>
-<span class="sourceLineNo">158</span>    } catch (Exception e) {<a name="line.158"></a>
-<span class="sourceLineNo">159</span>      this.tableLock.release();<a name="line.159"></a>
-<span class="sourceLineNo">160</span>      throw e;<a name="line.160"></a>
-<span class="sourceLineNo">161</span>    }<a name="line.161"></a>
-<span class="sourceLineNo">162</span>    return this;<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>
-<span class="sourceLineNo">165</span>  /**<a name="line.165"></a>
-<span class="sourceLineNo">166</span>   * Execute the core common portions of taking a snapshot. The {@link #snapshotRegions(List)}<a name="line.166"></a>
-<span class="sourceLineNo">167</span>   * call should get implemented for each snapshot flavor.<a name="line.167"></a>
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-<span class="sourceLineNo">171</span>    justification="Intentional")<a name="line.171"></a>
-<span class="sourceLineNo">172</span>  public void process() {<a name="line.172"></a>
-<span class="sourceLineNo">173</span>    String msg = "Running " + snapshot.getType() + " table snapshot " + snapshot.getName() + " "<a name="line.173"></a>
-<span class="sourceLineNo">174</span>        + eventType + " on table " + snapshotTable;<a name="line.174"></a>
-<span class="sourceLineNo">175</span>    LOG.info(msg);<a name="line.175"></a>
-<span class="sourceLineNo">176</span>    ReentrantLock lock = snapshotManager.getLocks().acquireLock(snapshot.getName());<a name="line.176"></a>
-<span class="sourceLineNo">177</span>    status.setStatus(msg);<a name="line.177"></a>
-<span class="sourceLineNo">178</span>    try {<a name="line.178"></a>
-<span class="sourceLineNo">179</span>      // If regions move after this meta scan, the region specific snapshot should fail, triggering<a name="line.179"></a>
-<span class="sourceLineNo">180</span>      // an external exception that gets captured here.<a name="line.180"></a>
-<span class="sourceLineNo">181</span><a name="line.181"></a>
-<span class="sourceLineNo">182</span>      // write down the snapshot info in the working directory<a name="line.182"></a>
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-<span class="sourceLineNo">184</span>      snapshotManifest.addTableDescriptor(this.htd);<a name="line.184"></a>
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-<span class="sourceLineNo">186</span><a name="line.186"></a>
-<span class="sourceLineNo">187</span>      List&lt;Pair&lt;RegionInfo, ServerName&gt;&gt; regionsAndLocations;<a name="line.187"></a>
-<span class="sourceLineNo">188</span>      if (TableName.META_TABLE_NAME.equals(snapshotTable)) {<a name="line.188"></a>
-<span class="sourceLineNo">189</span>        regionsAndLocations = new MetaTableLocator().getMetaRegionsAndLocations(<a name="line.189"></a>
-<span class="sourceLineNo">190</span>          server.getZooKeeper());<a name="line.190"></a>
-<span class="sourceLineNo">191</span>      } else {<a name="line.191"></a>
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-<span class="sourceLineNo">194</span>      }<a name="line.194"></a>
+<span class="sourceLineNo">047</span>import org.apache.hadoop.hbase.master.locking.LockManager.MasterLock;<a name="line.47"></a>
+<span class="sourceLineNo">048</span>import org.apache.hadoop.hbase.monitoring.MonitoredTask;<a name="line.48"></a>
+<span class="sourceLineNo">049</span>import org.apache.hadoop.hbase.monitoring.TaskMonitor;<a name="line.49"></a>
+<span class="sourceLineNo">050</span>import org.apache.hadoop.hbase.procedure2.LockType;<a name="line.50"></a>
+<span class="sourceLineNo">051</span>import org.apache.hadoop.hbase.snapshot.ClientSnapshotDescriptionUtils;<a name="line.51"></a>
+<span class="sourceLineNo">052</span>import org.apache.hadoop.hbase.snapshot.SnapshotCreationException;<a name="line.52"></a>
+<span class="sourceLineNo">053</span>import org.apache.hadoop.hbase.snapshot.SnapshotDescriptionUtils;<a name="line.53"></a>
+<span class="sourceLineNo">054</span>import org.apache.hadoop.hbase.snapshot.SnapshotManifest;<a name="line.54"></a>
+<span class="sourceLineNo">055</span>import org.apache.hadoop.hbase.util.FSUtils;<a name="line.55"></a>
+<span class="sourceLineNo">056</span>import org.apache.hadoop.hbase.util.Pair;<a name="line.56"></a>
+<span class="sourceLineNo">057</span>import org.apache.hadoop.hbase.zookeeper.MetaTableLocator;<a name="line.57"></a>
+<span class="sourceLineNo">058</span>import org.apache.yetus.audience.InterfaceAudience;<a name="line.58"></a>
+<span class="sourceLineNo">059</span>import org.apache.zookeeper.KeeperException;<a name="line.59"></a>
+<span class="sourceLineNo">060</span>import org.slf4j.Logger;<a name="line.60"></a>
+<span class="sourceLineNo">061</span>import org.slf4j.LoggerFactory;<a name="line.61"></a>
+<span class="sourceLineNo">062</span><a name="line.62"></a>
+<span class="sourceLineNo">063</span>import org.apache.hbase.thirdparty.com.google.common.base.Preconditions;<a name="line.63"></a>
+<span class="sourceLineNo">064</span>import org.apache.hadoop.hbase.shaded.protobuf.generated.SnapshotProtos.SnapshotDescription;<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> * A handler for taking snapshots from the master.<a name="line.67"></a>
+<span class="sourceLineNo">068</span> *<a name="line.68"></a>
+<span class="sourceLineNo">069</span> * This is not a subclass of TableEventHandler because using that would incur an extra hbase:meta scan.<a name="line.69"></a>
+<span class="sourceLineNo">070</span> *<a name="line.70"></a>
+<span class="sourceLineNo">071</span> * The {@link #snapshotRegions(List)} call should get implemented for each snapshot flavor.<a name="line.71"></a>
+<span class="sourceLineNo">072</span> */<a name="line.72"></a>
+<span class="sourceLineNo">073</span>@InterfaceAudience.Private<a name="line.73"></a>
+<span class="sourceLineNo">074</span>public abstract class TakeSnapshotHandler extends EventHandler implements SnapshotSentinel,<a name="line.74"></a>
+<span class="sourceLineNo">075</span>    ForeignExceptionSnare {<a name="line.75"></a>
+<span class="sourceLineNo">076</span>  private static final Logger LOG = LoggerFactory.getLogger(TakeSnapshotHandler.class);<a name="line.76"></a>
+<span class="sourceLineNo">077</span><a name="line.77"></a>
+<span class="sourceLineNo">078</span>  private volatile boolean finished;<a name="line.78"></a>
+<span class="sourceLineNo">079</span><a name="line.79"></a>
+<span class="sourceLineNo">080</span>  // none of these should ever be null<a name="line.80"></a>
+<span class="sourceLineNo">081</span>  protected final MasterServices master;<a name="line.81"></a>
+<span class="sourceLineNo">082</span>  protected final MetricsSnapshot metricsSnapshot = new MetricsSnapshot();<a name="line.82"></a>
+<span class="sourceLineNo">083</span>  protected final SnapshotDescription snapshot;<a name="line.83"></a>
+<span class="sourceLineNo">084</span>  protected final Configuration conf;<a name="line.84"></a>
+<span class="sourceLineNo">085</span>  protected final FileSystem rootFs;<a name="line.85"></a>
+<span class="sourceLineNo">086</span>  protected final FileSystem workingDirFs;<a name="line.86"></a>
+<span class="sourceLineNo">087</span>  protected final Path rootDir;<a name="line.87"></a>
+<span class="sourceLineNo">088</span>  private final Path snapshotDir;<a name="line.88"></a>
+<span class="sourceLineNo">089</span>  protected final Path workingDir;<a name="line.89"></a>
+<span class="sourceLineNo">090</span>  private final MasterSnapshotVerifier verifier;<a name="line.90"></a>
+<span class="sourceLineNo">091</span>  protected final ForeignExceptionDispatcher monitor;<a name="line.91"></a>
+<span class="sourceLineNo">092</span>  private final LockManager.MasterLock tableLock;<a name="line.92"></a>
+<span class="sourceLineNo">093</span>  protected final MonitoredTask status;<a name="line.93"></a>
+<span class="sourceLineNo">094</span>  protected final TableName snapshotTable;<a name="line.94"></a>
+<span class="sourceLineNo">095</span>  protected final SnapshotManifest snapshotManifest;<a name="line.95"></a>
+<span class="sourceLineNo">096</span>  protected final SnapshotManager snapshotManager;<a name="line.96"></a>
+<span class="sourceLineNo">097</span><a name="line.97"></a>
+<span class="sourceLineNo">098</span>  protected TableDescriptor htd;<a name="line.98"></a>
+<span class="sourceLineNo">099</span><a name="line.99"></a>
+<span class="sourceLineNo">100</span>  /**<a name="line.100"></a>
+<span class="sourceLineNo">101</span>   * @param snapshot descriptor of the snapshot to take<a name="line.101"></a>
+<span class="sourceLineNo">102</span>   * @param masterServices master services provider<a name="line.102"></a>
+<span class="sourceLineNo">103</span>   * @throws IllegalArgumentException if the working snapshot directory set from the<a name="line.103"></a>
+<span class="sourceLineNo">104</span>   *   configuration is the same as the completed snapshot directory<a name="line.104"></a>
+<span class="sourceLineNo">105</span>   * @throws IOException if the file system of the working snapshot directory cannot be<a name="line.105"></a>
+<span class="sourceLineNo">106</span>   *   determined<a name="line.106"></a>
+<span class="sourceLineNo">107</span>   */<a name="line.107"></a>
+<span class="sourceLineNo">108</span>  public TakeSnapshotHandler(SnapshotDescription snapshot, final MasterServices masterServices,<a name="line.108"></a>
+<span class="sourceLineNo">109</span>                             final SnapshotManager snapshotManager) throws IOException {<a name="line.109"></a>
+<span class="sourceLineNo">110</span>    super(masterServices, EventType.C_M_SNAPSHOT_TABLE);<a name="line.110"></a>
+<span class="sourceLineNo">111</span>    assert snapshot != null : "SnapshotDescription must not be nul1";<a name="line.111"></a>
+<span class="sourceLineNo">112</span>    assert masterServices != null : "MasterServices must not be nul1";<a name="line.112"></a>
+<span class="sourceLineNo">113</span>    this.master = masterServices;<a name="line.113"></a>
+<span class="sourceLineNo">114</span>    this.conf = this.master.getConfiguration();<a name="line.114"></a>
+<span class="sourceLineNo">115</span>    this.rootDir = this.master.getMasterFileSystem().getRootDir();<a name="line.115"></a>
+<span class="sourceLineNo">116</span>    this.workingDir = SnapshotDescriptionUtils.getWorkingSnapshotDir(snapshot, rootDir, conf);<a name="line.116"></a>
+<span class="sourceLineNo">117</span>    Preconditions.checkArgument(!SnapshotDescriptionUtils.isSubDirectoryOf(workingDir, rootDir) ||<a name="line.117"></a>
+<span class="sourceLineNo">118</span>            SnapshotDescriptionUtils.isWithinDefaultWorkingDir(workingDir, conf),<a name="line.118"></a>
+<span class="sourceLineNo">119</span>        "The working directory " + workingDir + " cannot be in the root directory unless it is "<a name="line.119"></a>
+<span class="sourceLineNo">120</span>            + "within the default working directory");<a name="line.120"></a>
+<span class="sourceLineNo">121</span><a name="line.121"></a>
+<span class="sourceLineNo">122</span>    this.snapshot = snapshot;<a name="line.122"></a>
+<span class="sourceLineNo">123</span>    this.snapshotManager = snapshotManager;<a name="line.123"></a>
+<span class="sourceLineNo">124</span>    this.snapshotTable = TableName.valueOf(snapshot.getTable());<a name="line.124"></a>
+<span class="sourceLineNo">125</span>    this.rootFs = this.master.getMasterFileSystem().getFileSystem();<a name="line.125"></a>
+<span class="sourceLineNo">126</span>    this.snapshotDir = SnapshotDescriptionUtils.getCompletedSnapshotDir(snapshot, rootDir);<a name="line.126"></a>
+<span class="sourceLineNo">127</span>    this.workingDirFs = this.workingDir.getFileSystem(this.conf);<a name="line.127"></a>
+<span class="sourceLineNo">128</span>    this.monitor = new ForeignExceptionDispatcher(snapshot.getName());<a name="line.128"></a>
+<span class="sourceLineNo">129</span>    this.snapshotManifest = SnapshotManifest.create(conf, rootFs, workingDir, snapshot, monitor);<a name="line.129"></a>
+<span class="sourceLineNo">130</span><a name="line.130"></a>
+<span class="sourceLineNo">131</span>    this.tableLock = master.getLockManager().createMasterLock(<a name="line.131"></a>
+<span class="sourceLineNo">132</span>        snapshotTable, LockType.EXCLUSIVE,<a name="line.132"></a>
+<span class="sourceLineNo">133</span>        this.getClass().getName() + ": take snapshot " + snapshot.getName());<a name="line.133"></a>
+<span class="sourceLineNo">134</span><a name="line.134"></a>
+<span class="sourceLineNo">135</span>    // prepare the verify<a name="line.135"></a>
+<span class="sourceLineNo">136</span>    this.verifier = new MasterSnapshotVerifier(masterServices, snapshot, workingDirFs);<a name="line.136"></a>
+<span class="sourceLineNo">137</span>    // update the running tasks<a name="line.137"></a>
+<span class="sourceLineNo">138</span>    this.status = TaskMonitor.get().createStatus(<a name="line.138"></a>
+<span class="sourceLineNo">139</span>      "Taking " + snapshot.getType() + " snapshot on table: " + snapshotTable);<a name="line.139"></a>
+<span class="sourceLineNo">140</span>  }<a name="line.140"></a>
+<span class="sourceLineNo">141</span><a name="line.141"></a>
+<span class="sourceLineNo">142</span>  private TableDescriptor loadTableDescriptor()<a name="line.142"></a>
+<span class="sourceLineNo">143</span>      throws FileNotFoundException, IOException {<a name="line.143"></a>
+<span class="sourceLineNo">144</span>    TableDescriptor htd =<a name="line.144"></a>
+<span class="sourceLineNo">145</span>      this.master.getTableDescriptors().get(snapshotTable);<a name="line.145"></a>
+<span class="sourceLineNo">146</span>    if (htd == null) {<a name="line.146"></a>
+<span class="sourceLineNo">147</span>      throw new IOException("TableDescriptor missing for " + snapshotTable);<a name="line.147"></a>
+<span class="sourceLineNo">148</span>    }<a name="line.148"></a>
+<span class="sourceLineNo">149</span>    return htd;<a name="line.149"></a>
+<span class="sourceLineNo">150</span>  }<a name="line.150"></a>
+<span class="sourceLineNo">151</span><a name="line.151"></a>
+<span class="sourceLineNo">152</span>  @Override<a name="line.152"></a>
+<span class="sourceLineNo">153</span>  public TakeSnapshotHandler prepare() throws Exception {<a name="line.153"></a>
+<span class="sourceLineNo">154</span>    super.prepare();<a name="line.154"></a>
+<span class="sourceLineNo">155</span>    // after this, you should ensure to release this lock in case of exceptions<a name="line.155"></a>
+<span class="sourceLineNo">156</span>    this.tableLock.acquire();<a name="line.156"></a>
+<span class="sourceLineNo">157</span>    try {<a name="line.157"></a>
+<span class="sourceLineNo">158</span>      this.htd = loadTableDescriptor(); // check that .tableinfo is present<a name="line.158"></a>
+<span class="sourceLineNo">159</span>    } catch (Exception e) {<a name="line.159"></a>
+<span class="sourceLineNo">160</span>      this.tableLock.release();<a name="line.160"></a>
+<span class="sourceLineNo">161</span>      throw e;<a name="line.161"></a>
+<span class="sourceLineNo">162</span>    }<a name="line.162"></a>
+<span class="sourceLineNo">163</span>    return this;<a name="line.163"></a>
+<span class="sourceLineNo">164</span>  }<a name="line.164"></a>
+<span class="sourceLineNo">165</span><a name="line.165"></a>
+<span class="sourceLineNo">166</span>  /**<a name="line.166"></a>
+<span class="sourceLineNo">167</span>   * Execute the core common portions of taking a snapshot. The {@link #snapshotRegions(List)}<a name="line.167"></a>
+<span class="sourceLineNo">168</span>   * call should get implemented for each snapshot flavor.<a name="line.168"></a>
+<span class="sourceLineNo">169</span>   */<a name="line.169"></a>
+<span class="sourceLineNo">170</span>  @Override<a name="line.170"></a>
+<span class="sourceLineNo">171</span>  @edu.umd.cs.findbugs.annotations.SuppressWarnings(value="REC_CATCH_EXCEPTION",<a name="line.171"></a>
+<span class="sourceLineNo">172</span>    justification="Intentional")<a name="line.172"></a>
+<span class="sourceLineNo">173</span>  public void process() {<a name="line.173"></a>
+<span class="sourceLineNo">174</span>    String msg = "Running " + snapshot.getType() + " table snapshot " + snapshot.getName() + " "<a name="line.174"></a>
+<span class="sourceLineNo">175</span>        + eventType + " on table " + snapshotTable;<a name="line.175"></a>
+<span class="sourceLineNo">176</span>    LOG.info(msg);<a name="line.176"></a>
+<span class="sourceLineNo">177</span>    ReentrantLock lock = snapshotManager.getLocks().acquireLock(snapshot.getName());<a name="line.177"></a>
+<span class="sourceLineNo">178</span>    MasterLock tableLockToRelease = this.tableLock;<a name="line.178"></a>
+<span class="sourceLineNo">179</span>    status.setStatus(msg);<a name="line.179"></a>
+<span class="sourceLineNo">180</span>    try {<a name="line.180"></a>
+<span class="sourceLineNo">181</span>      if (downgradeToSharedTableLock()) {<a name="line.181"></a>
+<span class="sourceLineNo">182</span>        // release the exclusive lock and hold the shared lock instead<a name="line.182"></a>
+<span class="sourceLineNo">183</span>        tableLockToRelease = master.getLockManager().createMasterLock(snapshotTable,<a name="line.183"></a>
+<span class="sourceLineNo">184</span>          LockType.SHARED, this.getClass().getName() + ": take snapshot " + snapshot.getName());<a name="line.184"></a>
+<span class="sourceLineNo">185</span>        tableLock.release();<a name="line.185"></a>
+<span class="sourceLineNo">186</span>        tableLockToRelease.acquire();<a name="line.186"></a>
+<span class="sourceLineNo">187</span>      }<a name="line.187"></a>
+<span class="sourceLineNo">188</span>      // If regions move after this meta scan, the region specific snapshot should fail, triggering<a name="line.188"></a>
+<span class="sourceLineNo">189</span>      // an external exception that gets captured here.<a name="line.189"></a>
+<span class="sourceLineNo">190</span><a name="line.190"></a>
+<span class="sourceLineNo">191</span>      // write down the snapshot info in the working directory<a name="line.191"></a>
+<span class="sourceLineNo">192</span>      SnapshotDescriptionUtils.writeSnapshotInfo(snapshot, workingDir, workingDirFs);<a name="line.192"></a>
+<span class="sourceLineNo">193</span>      snapshotManifest.addTableDescriptor(this.htd);<a name="line.193"></a>
+<span class="sourceLineNo">194</span>      monitor.rethrowException();<a name="line.194"></a>
 <span class="sourceLineNo">195</span><a name="line.195"></a>
-<span class="sourceLineNo">196</span>      // run the snapshot<a name="line.196"></a>
-<span class="sourceLineNo">197</span>      snapshotRegions(regionsAndLocations);<a name="line.197"></a>
-<span class="sourceLineNo">198</span>      monitor.rethrowException();<a name="line.198"></a>
-<span class="sourceLineNo">199</span><a name="line.199"></a>
-<span class="sourceLineNo">200</span>      // extract each pair to separate lists<a name="line.200"></a>
-<span class="sourceLineNo">201</span>      Set&lt;String&gt; serverNames = new HashSet&lt;&gt;();<a name="line.201"></a>
-<span class="sourceLineNo">202</span>      for (Pair&lt;RegionInfo, ServerName&gt; p : regionsAndLocations) {<a name="line.202"></a>
-<span class="sourceLineNo">203</span>        if (p != null &amp;&amp; p.getFirst() != null &amp;&amp; p.getSecond() != null) {<a name="line.203"></a>
-<span class="sourceLineNo">204</span>          RegionInfo hri = p.getFirst();<a name="line.204"></a>
-<span class="sourceLineNo">205</span>          if (hri.isOffline() &amp;&amp; (hri.isSplit() || hri.isSplitParent())) continue;<a name="line.205"></a>
-<span class="sourceLineNo">206</span>          serverNames.add(p.getSecond().toString());<a name="line.206"></a>
-<span class="sourceLineNo">207</span>        }<a name="line.207"></a>
-<span class="sourceLineNo">208</span>      }<a name="line.208"></a>
-<span class="sourceLineNo">209</span><a name="line.209"></a>
-<span class="sourceLineNo">210</span>      // flush the in-memory state, and write the single manifest<a name="line.210"></a>
-<span class="sourceLineNo">211</span>      status.setStatus("Consolidate snapshot: " + snapshot.getName());<a name="line.211"></a>
-<span class="sourceLineNo">212</span>      snapshotManifest.consolidate();<a name="line.212"></a>
-<span class="sourceLineNo">213</span><a name="line.213"></a>
-<span class="sourceLineNo">214</span>      // verify the snapshot is valid<a name="line.214"></a>
-<span class="sourceLineNo">215</span>      status.setStatus("Verifying snapshot: " + snapshot.getName());<a name="line.215"></a>
-<span class="sourceLineNo">216</span>      verifier.verifySnapshot(this.workingDir, serverNames);<a name="line.216"></a>
-<span class="sourceLineNo">217</span><a name="line.217"></a>
-<span class="sourceLineNo">218</span>      // complete the snapshot, atomically moving from tmp to .snapshot dir.<a name="line.218"></a>
-<span class="sourceLineNo">219</span>      completeSnapshot(this.snapshotDir, this.workingDir, this.rootFs, this.workingDirFs);<a name="line.219"></a>
-<span class="sourceLineNo">220</span>      msg = "Snapshot " + snapshot.getName() + " of table " + snapshotTable + " completed";<a name="line.220"></a>
-<span class="sourceLineNo">221</span>      status.markComplete(msg);<a name="line.221"></a>
-<span class="sourceLineNo">222</span>      LOG.info(msg);<a name="line.222"></a>
-<span class="sourceLineNo">223</span>      metricsSnapshot.addSnapshot(status.getCompletionTimestamp() - status.getStartTime());<a name="line.223"></a>
-<span class="sourceLineNo">224</span>    } catch (Exception e) { // FindBugs: REC_CATCH_EXCEPTION<a name="line.224"></a>
-<span class="sourceLineNo">225</span>      status.abort("Failed to complete snapshot " + snapshot.getName() + " on table " +<a name="line.225"></a>
-<span class="sourceLineNo">226</span>          snapshotTable + " because " + e.getMessage());<a name="line.226"></a>
-<span class="sourceLineNo">227</span>      String reason = "Failed taking snapshot " + ClientSnapshotDescriptionUtils.toString(snapshot)<a name="line.227"></a>
-<span class="sourceLineNo">228</span>          + " due to exception:" + e.getMessage();<a name="line.228"></a>
-<span class="sourceLineNo">229</span>      LOG.error(reason, e);<a name="line.229"></a>
-<span class="sourceLineNo">230</span>      ForeignException ee = new ForeignException(reason, e);<a name="line.230"></a>
-<span class="sourceLineNo">231</span>      monitor.receive(ee);<a name="line.231"></a>
-<span class="sourceLineNo">232</span>      // need to mark this completed to close off and allow cleanup to happen.<a name="line.232"></a>
-<span class="sourceLineNo">233</span>      cancel(reason);<a name="line.233"></a>
-<span class="sourceLineNo">234</span>    } finally {<a name="line.234"></a>
-<span class="sourceLineNo">235</span>      LOG.debug("Launching cleanup of working dir:" + workingDir);<a name="line.235"></a>
-<span class="sourceLineNo">236</span>      try {<a name="line.236"></a>
-<span class="sourceLineNo">237</span>        // if the working dir is still present, the snapshot has failed.  it is present we delete<a name="line.237"></a>
-<span class="sourceLineNo">238</span>        // it.<a name="line.238"></a>
-<span class="sourceLineNo">239</span>        if (!workingDirFs.delete(workingDir, true)) {<a name="line.239"></a>
-<span class="sourceLineNo">240</span>          LOG.error("Couldn't delete snapshot working directory:" + workingDir);<a name="line.240"></a>
-<span class="sourceLineNo">241</span>        }<a name="line.241"></a>
-<span class="sourceLineNo">242</span>      } catch (IOException e) {<a name="line.242"></a>
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+<span class="sourceLineNo">323</span>    if (finished) return;<a name="line.323"></a>
+<span class="sourceLineNo">324</span><a name="line.324"></a>
+<span class="sourceLineNo">325</span>    this.finished = true;<a name="line.325"></a>
+<span class="sourceLineNo">326</span>    LOG.info("Stop taking snapshot=" + ClientSnapshotDescriptionUtils.toString(snapshot) +<a name="line.326"></a>
+<span class="sourceLineNo">327</span>        " because: " + why);<a name="line.327"></a>
+<span class="sourceLineNo">328</span>    CancellationException ce = new CancellationException(why);<a name="line.328"></a>
+<span class="sourceLineNo">329</span>    monitor.receive(new ForeignException(master.getServerName().toString(), ce));<a name="line.329"></a>
+<span class="sourceLineNo">330</span>  }<a name="line.330"></a>
+<span class="sourceLineNo">331</span><a name="line.331"></a>
+<span class="sourceLineNo">332</span>  @Override<a name="line.332"></a>
+<span class="sourceLineNo">333</span>  public boolean isFinished() {<a name="line.333"></a>
+<span class="sourceLineNo">334</span>    return finished;<a name="line.334"></a>
+<span class="sourceLineNo">335</span>  }<a name="line.335"></a>
+<span class="sourceLineNo">336</span><a name="line.336"></a>
+<span class="sourceLineNo">337</span>  @Override<a name="line.337"></a>
+<span class="sourceLineNo">338</span>  public long getCompletionTimestamp() {<a name="line.338"></a>
+<span class="sourceLineNo">339</span>    return this.status.getCompletionTimestamp();<a name="line.339"></a>
+<span class="sourceLineNo">340</span>  }<a name="line.340"></a>
+<span class="sourceLineNo">341</span><a name="line.341"></a>
+<span class="sourceLineNo">342</span>  @Override<a name="line.342"></a>
+<span class="sourceLineNo">343</span>  public SnapshotDescription getSnapshot() {<a name="line.343"></a>
+<span class="sourceLineNo">344</span>    return snapshot;<a name="line.344"></a>
+<span class="sourceLineNo">345</span>  }<a name="line.345"></a>
+<span class="sourceLineNo">346</span><a name="line.346"></a>
+<span class="sourceLineNo">347</span>  @Override<a name="line.347"></a>
+<span class="sourceLineNo">348</span>  public ForeignException getExceptionIfFailed() {<a name="line.348"></a>
+<span class="sourceLineNo">349</span>    return monitor.getException();<a name="line.349"></a>
+<span class="sourceLineNo">350</span>  }<a name="line.350"></a>
+<span class="sourceLineNo">351</span><a name="line.351"></a>
+<span class="sourceLineNo">352</span>  @Override<a name="line.352"></a>
+<span class="sourceLineNo">353</span>  public void rethrowExceptionIfFailed() throws ForeignException {<a name="line.353"></a>
+<span class="sourceLineNo">354</span>    monitor.rethrowException();<a name="line.354"></a>
+<span class="sourceLineNo">355</span>  }<a name="line.355"></a>
+<span class="sourceLineNo">356</span><a name="line.356"></a>
+<span class="sourceLineNo">357</span>  @Override<a name="line.357"></a>
+<span class="sourceLineNo">358</span>  public void rethrowException() throws ForeignException {<a name="line.358"></a>
+<span class="sourceLineNo">359</span>    monitor.rethrowException();<a name="line.359"></a>
+<span class="sourceLineNo">360</span>  }<a name="line.360"></a>
+<span class="sourceLineNo">361</span><a name="line.361"></a>
+<span class="sourceLineNo">362</span>  @Override<a name="line.362"></a>
+<span class="sourceLineNo">363</span>  public boolean hasException() {<a name="line.363"></a>
+<span class="sourceLineNo">364</span>    return monitor.hasException();<a name="line.364"></a>
+<span class="sourceLineNo">365</span>  }<a name="line.365"></a>
+<span class="sourceLineNo">366</span><a name="line.366"></a>
+<span class="sourceLineNo">367</span>  @Override<a name="line.367"></a>
+<span class="sourceLineNo">368</span>  public ForeignException getException() {<a name="line.368"></a>
+<span class="sourceLineNo">369</span>    return monitor.getException();<a name="line.369"></a>
+<span class="sourceLineNo">370</span>  }<a name="line.370"></a>
+<span class="sourceLineNo">371</span><a name="line.371"></a>
+<span class="sourceLineNo">372</span>}<a name="line.372"></a>
 
 
 

http://git-wip-us.apache.org/repos/asf/hbase-site/blob/fa03a052/downloads.html
----------------------------------------------------------------------
diff --git a/downloads.html b/downloads.html
index d8c92a9..e87ae21 100644
--- a/downloads.html
+++ b/downloads.html
@@ -7,7 +7,7 @@
   <head>
     <meta charset="UTF-8" />
     <meta name="viewport" content="width=device-width, initial-scale=1.0" />
-    <meta name="Date-Revision-yyyymmdd" content="20181117" />
+    <meta name="Date-Revision-yyyymmdd" content="20181118" />
     <meta http-equiv="Content-Language" content="en" />
     <title>Apache HBase &#x2013; Apache HBase Downloads</title>
     <link rel="stylesheet" href="./css/apache-maven-fluido-1.4-HBase.min.css" />
@@ -461,7 +461,7 @@ under the License. -->
                         <a href="https://www.apache.org/">The Apache Software Foundation</a>.
             All rights reserved.      
                     
-                  <li id="publishDate" class="pull-right">Last Published: 2018-11-17</li>
+                  <li id="publishDate" class="pull-right">Last Published: 2018-11-18</li>
             </p>
                 </div>
 

http://git-wip-us.apache.org/repos/asf/hbase-site/blob/fa03a052/export_control.html
----------------------------------------------------------------------
diff --git a/export_control.html b/export_control.html
index b59999e..8b7e913 100644
--- a/export_control.html
+++ b/export_control.html
@@ -7,7 +7,7 @@
   <head>
     <meta charset="UTF-8" />
     <meta name="viewport" content="width=device-width, initial-scale=1.0" />
-    <meta name="Date-Revision-yyyymmdd" content="20181117" />
+    <meta name="Date-Revision-yyyymmdd" content="20181118" />
     <meta http-equiv="Content-Language" content="en" />
     <title>Apache HBase &#x2013; 
       Export Control
@@ -341,7 +341,7 @@ for more details.</p>
                         <a href="https://www.apache.org/">The Apache Software Foundation</a>.
             All rights reserved.      
                     
-                  <li id="publishDate" class="pull-right">Last Published: 2018-11-17</li>
+                  <li id="publishDate" class="pull-right">Last Published: 2018-11-18</li>
             </p>
                 </div>
 

http://git-wip-us.apache.org/repos/asf/hbase-site/blob/fa03a052/index.html
----------------------------------------------------------------------
diff --git a/index.html b/index.html
index 33b6c3d..3a7952a 100644
--- a/index.html
+++ b/index.html
@@ -7,7 +7,7 @@
   <head>
     <meta charset="UTF-8" />
     <meta name="viewport" content="width=device-width, initial-scale=1.0" />
-    <meta name="Date-Revision-yyyymmdd" content="20181117" />
+    <meta name="Date-Revision-yyyymmdd" content="20181118" />
     <meta http-equiv="Content-Language" content="en" />
     <title>Apache HBase &#x2013; Apache HBase™ Home</title>
     <link rel="stylesheet" href="./css/apache-maven-fluido-1.4-HBase.min.css" />
@@ -421,7 +421,7 @@ Apache HBase is an open-source, distributed, versioned, non-relational database
                         <a href="https://www.apache.org/">The Apache Software Foundation</a>.
             All rights reserved.      
                     
-                  <li id="publishDate" class="pull-right">Last Published: 2018-11-17</li>
+                  <li id="publishDate" class="pull-right">Last Published: 2018-11-18</li>
             </p>
                 </div>
 

http://git-wip-us.apache.org/repos/asf/hbase-site/blob/fa03a052/integration.html
----------------------------------------------------------------------
diff --git a/integration.html b/integration.html
index 41594af..6d02aac 100644
--- a/integration.html
+++ b/integration.html
@@ -7,7 +7,7 @@
   <head>
     <meta charset="UTF-8" />
     <meta name="viewport" content="width=device-width, initial-scale=1.0" />
-    <meta name="Date-Revision-yyyymmdd" content="20181117" />
+    <meta name="Date-Revision-yyyymmdd" content="20181118" />
     <meta http-equiv="Content-Language" content="en" />
     <title>Apache HBase &#x2013; CI Management</title>
     <link rel="stylesheet" href="./css/apache-maven-fluido-1.4-HBase.min.css" />
@@ -301,7 +301,7 @@
                         <a href="https://www.apache.org/">The Apache Software Foundation</a>.
             All rights reserved.      
                     
-                  <li id="publishDate" class="pull-right">Last Published: 2018-11-17</li>
+                  <li id="publishDate" class="pull-right">Last Published: 2018-11-18</li>
             </p>
                 </div>
 

http://git-wip-us.apache.org/repos/asf/hbase-site/blob/fa03a052/issue-tracking.html
----------------------------------------------------------------------
diff --git a/issue-tracking.html b/issue-tracking.html
index d5effb8..6f7b490 100644
--- a/issue-tracking.html
+++ b/issue-tracking.html
@@ -7,7 +7,7 @@
   <head>
     <meta charset="UTF-8" />
     <meta name="viewport" content="width=device-width, initial-scale=1.0" />
-    <meta name="Date-Revision-yyyymmdd" content="20181117" />
+    <meta name="Date-Revision-yyyymmdd" content="20181118" />
     <meta http-equiv="Content-Language" content="en" />
     <title>Apache HBase &#x2013; Issue Management</title>
     <link rel="stylesheet" href="./css/apache-maven-fluido-1.4-HBase.min.css" />
@@ -298,7 +298,7 @@
                         <a href="https://www.apache.org/">The Apache Software Foundation</a>.
             All rights reserved.      
                     
-                  <li id="publishDate" class="pull-right">Last Published: 2018-11-17</li>
+                  <li id="publishDate" class="pull-right">Last Published: 2018-11-18</li>
             </p>
                 </div>
 

http://git-wip-us.apache.org/repos/asf/hbase-site/blob/fa03a052/license.html
----------------------------------------------------------------------
diff --git a/license.html b/license.html
index 6db1de6..86cb03a 100644
--- a/license.html
+++ b/license.html
@@ -7,7 +7,7 @@
   <head>
     <meta charset="UTF-8" />
     <meta name="viewport" content="width=device-width, initial-scale=1.0" />
-    <meta name="Date-Revision-yyyymmdd" content="20181117" />
+    <meta name="Date-Revision-yyyymmdd" content="20181118" />
     <meta http-equiv="Content-Language" content="en" />
     <title>Apache HBase &#x2013; Project Licenses</title>
     <link rel="stylesheet" href="./css/apache-maven-fluido-1.4-HBase.min.css" />
@@ -501,7 +501,7 @@
                         <a href="https://www.apache.org/">The Apache Software Foundation</a>.
             All rights reserved.      
                     
-                  <li id="publishDate" class="pull-right">Last Published: 2018-11-17</li>
+                  <li id="publishDate" class="pull-right">Last Published: 2018-11-18</li>
             </p>
                 </div>
 

http://git-wip-us.apache.org/repos/asf/hbase-site/blob/fa03a052/mail-lists.html
----------------------------------------------------------------------
diff --git a/mail-lists.html b/mail-lists.html
index f97b59d..27e95bc 100644
--- a/mail-lists.html
+++ b/mail-lists.html
@@ -7,7 +7,7 @@
   <head>
     <meta charset="UTF-8" />
     <meta name="viewport" content="width=device-width, initial-scale=1.0" />
-    <meta name="Date-Revision-yyyymmdd" content="20181117" />
+    <meta name="Date-Revision-yyyymmdd" content="20181118" />
     <meta http-equiv="Content-Language" content="en" />
     <title>Apache HBase &#x2013; Project Mailing Lists</title>
     <link rel="stylesheet" href="./css/apache-maven-fluido-1.4-HBase.min.css" />
@@ -351,7 +351,7 @@
                         <a href="https://www.apache.org/">The Apache Software Foundation</a>.
             All rights reserved.      
                     
-                  <li id="publishDate" class="pull-right">Last Published: 2018-11-17</li>
+                  <li id="publishDate" class="pull-right">Last Published: 2018-11-18</li>
             </p>
                 </div>
 

http://git-wip-us.apache.org/repos/asf/hbase-site/blob/fa03a052/metrics.html
----------------------------------------------------------------------
diff --git a/metrics.html b/metrics.html
index a51c359..435edf5 100644
--- a/metrics.html
+++ b/metrics.html
@@ -7,7 +7,7 @@
   <head>
     <meta charset="UTF-8" />
     <meta name="viewport" content="width=device-width, initial-scale=1.0" />
-    <meta name="Date-Revision-yyyymmdd" content="20181117" />
+    <meta name="Date-Revision-yyyymmdd" content="20181118" />
     <meta http-equiv="Content-Language" content="en" />
     <title>Apache HBase &#x2013;  
       Apache HBase (TM) Metrics
@@ -469,7 +469,7 @@ export HBASE_REGIONSERVER_OPTS=&quot;$HBASE_JMX_OPTS -Dcom.sun.management.jmxrem
                         <a href="https://www.apache.org/">The Apache Software Foundation</a>.
             All rights reserved.      
                     
-                  <li id="publishDate" class="pull-right">Last Published: 2018-11-17</li>
+                  <li id="publishDate" class="pull-right">Last Published: 2018-11-18</li>
             </p>
                 </div>
 

http://git-wip-us.apache.org/repos/asf/hbase-site/blob/fa03a052/old_news.html
----------------------------------------------------------------------
diff --git a/old_news.html b/old_news.html
index f534072..69325fc 100644
--- a/old_news.html
+++ b/old_news.html
@@ -7,7 +7,7 @@
   <head>
     <meta charset="UTF-8" />
     <meta name="viewport" content="width=device-width, initial-scale=1.0" />
-    <meta name="Date-Revision-yyyymmdd" content="20181117" />
+    <meta name="Date-Revision-yyyymmdd" content="20181118" />
     <meta http-equiv="Content-Language" content="en" />
     <title>Apache HBase &#x2013; 
       Old Apache HBase (TM) News
@@ -450,7 +450,7 @@ under the License. -->
                         <a href="https://www.apache.org/">The Apache Software Foundation</a>.
             All rights reserved.      
                     
-                  <li id="publishDate" class="pull-right">Last Published: 2018-11-17</li>
+                  <li id="publishDate" class="pull-right">Last Published: 2018-11-18</li>
             </p>
                 </div>
 

http://git-wip-us.apache.org/repos/asf/hbase-site/blob/fa03a052/plugin-management.html
----------------------------------------------------------------------
diff --git a/plugin-management.html b/plugin-management.html
index ded62ed..342f0bb 100644
--- a/plugin-management.html
+++ b/plugin-management.html
@@ -7,7 +7,7 @@
   <head>
     <meta charset="UTF-8" />
     <meta name="viewport" content="width=device-width, initial-scale=1.0" />
-    <meta name="Date-Revision-yyyymmdd" content="20181117" />
+    <meta name="Date-Revision-yyyymmdd" content="20181118" />
     <meta http-equiv="Content-Language" content="en" />
     <title>Apache HBase &#x2013; Project Plugin Management</title>
     <link rel="stylesheet" href="./css/apache-maven-fluido-1.4-HBase.min.css" />
@@ -450,7 +450,7 @@
                         <a href="https://www.apache.org/">The Apache Software Foundation</a>.
             All rights reserved.      
                     
-                  <li id="publishDate" class="pull-right">Last Published: 2018-11-17</li>
+                  <li id="publishDate" class="pull-right">Last Published: 2018-11-18</li>
             </p>
                 </div>
 

http://git-wip-us.apache.org/repos/asf/hbase-site/blob/fa03a052/plugins.html
----------------------------------------------------------------------
diff --git a/plugins.html b/plugins.html
index 32fca20..fb986ce 100644
--- a/plugins.html
+++ b/plugins.html
@@ -7,7 +7,7 @@
   <head>
     <meta charset="UTF-8" />
     <meta name="viewport" content="width=device-width, initial-scale=1.0" />
-    <meta name="Date-Revision-yyyymmdd" content="20181117" />
+    <meta name="Date-Revision-yyyymmdd" content="20181118" />
     <meta http-equiv="Content-Language" content="en" />
     <title>Apache HBase &#x2013; Project Plugins</title>
     <link rel="stylesheet" href="./css/apache-maven-fluido-1.4-HBase.min.css" />
@@ -381,7 +381,7 @@
                         <a href="https://www.apache.org/">The Apache Software Foundation</a>.
             All rights reserved.      
                     
-                  <li id="publishDate" class="pull-right">Last Published: 2018-11-17</li>
+                  <li id="publishDate" class="pull-right">Last Published: 2018-11-18</li>
             </p>
                 </div>
 

http://git-wip-us.apache.org/repos/asf/hbase-site/blob/fa03a052/poweredbyhbase.html
----------------------------------------------------------------------
diff --git a/poweredbyhbase.html b/poweredbyhbase.html
index 816182d..dcf755e 100644
--- a/poweredbyhbase.html
+++ b/poweredbyhbase.html
@@ -7,7 +7,7 @@
   <head>
     <meta charset="UTF-8" />
     <meta name="viewport" content="width=device-width, initial-scale=1.0" />
-    <meta name="Date-Revision-yyyymmdd" content="20181117" />
+    <meta name="Date-Revision-yyyymmdd" content="20181118" />
     <meta http-equiv="Content-Language" content="en" />
     <title>Apache HBase &#x2013; Powered By Apache HBase</title>
     <link rel="stylesheet" href="./css/apache-maven-fluido-1.4-HBase.min.css" />
@@ -779,7 +779,7 @@ under the License. -->
                         <a href="https://www.apache.org/">The Apache Software Foundation</a>.
             All rights reserved.      
                     
-                  <li id="publishDate" class="pull-right">Last Published: 2018-11-17</li>
+                  <li id="publishDate" class="pull-right">Last Published: 2018-11-18</li>
             </p>
                 </div>
 

http://git-wip-us.apache.org/repos/asf/hbase-site/blob/fa03a052/project-info.html
----------------------------------------------------------------------
diff --git a/project-info.html b/project-info.html
index b0d58c8..ed6f6b9 100644
--- a/project-info.html
+++ b/project-info.html
@@ -7,7 +7,7 @@
   <head>
     <meta charset="UTF-8" />
     <meta name="viewport" content="width=device-width, initial-scale=1.0" />
-    <meta name="Date-Revision-yyyymmdd" content="20181117" />
+    <meta name="Date-Revision-yyyymmdd" content="20181118" />
     <meta http-equiv="Content-Language" content="en" />
     <title>Apache HBase &#x2013; Project Information</title>
     <link rel="stylesheet" href="./css/apache-maven-fluido-1.4-HBase.min.css" />
@@ -345,7 +345,7 @@
                         <a href="https://www.apache.org/">The Apache Software Foundation</a>.
             All rights reserved.      
                     
-                  <li id="publishDate" class="pull-right">Last Published: 2018-11-17</li>
+                  <li id="publishDate" class="pull-right">Last Published: 2018-11-18</li>
             </p>
                 </div>
 

http://git-wip-us.apache.org/repos/asf/hbase-site/blob/fa03a052/project-reports.html
----------------------------------------------------------------------
diff --git a/project-reports.html b/project-reports.html
index 0806594..dd5454b 100644
--- a/project-reports.html
+++ b/project-reports.html
@@ -7,7 +7,7 @@
   <head>
     <meta charset="UTF-8" />
     <meta name="viewport" content="width=device-width, initial-scale=1.0" />
-    <meta name="Date-Revision-yyyymmdd" content="20181117" />
+    <meta name="Date-Revision-yyyymmdd" content="20181118" />
     <meta http-equiv="Content-Language" content="en" />
     <title>Apache HBase &#x2013; Generated Reports</title>
     <link rel="stylesheet" href="./css/apache-maven-fluido-1.4-HBase.min.css" />
@@ -315,7 +315,7 @@
                         <a href="https://www.apache.org/">The Apache Software Foundation</a>.
             All rights reserved.      
                     
-                  <li id="publishDate" class="pull-right">Last Published: 2018-11-17</li>
+                  <li id="publishDate" class="pull-right">Last Published: 2018-11-18</li>
             </p>
                 </div>
 

http://git-wip-us.apache.org/repos/asf/hbase-site/blob/fa03a052/project-summary.html
----------------------------------------------------------------------
diff --git a/project-summary.html b/project-summary.html
index a240118..f755260 100644
--- a/project-summary.html
+++ b/project-summary.html
@@ -7,7 +7,7 @@
   <head>
     <meta charset="UTF-8" />
     <meta name="viewport" content="width=device-width, initial-scale=1.0" />
-    <meta name="Date-Revision-yyyymmdd" content="20181117" />
+    <meta name="Date-Revision-yyyymmdd" content="20181118" />
     <meta http-equiv="Content-Language" content="en" />
     <title>Apache HBase &#x2013; Project Summary</title>
     <link rel="stylesheet" href="./css/apache-maven-fluido-1.4-HBase.min.css" />
@@ -341,7 +341,7 @@
                         <a href="https://www.apache.org/">The Apache Software Foundation</a>.
             All rights reserved.      
                     
-                  <li id="publishDate" class="pull-right">Last Published: 2018-11-17</li>
+                  <li id="publishDate" class="pull-right">Last Published: 2018-11-18</li>
             </p>
                 </div>
 

http://git-wip-us.apache.org/repos/asf/hbase-site/blob/fa03a052/pseudo-distributed.html
----------------------------------------------------------------------
diff --git a/pseudo-distributed.html b/pseudo-distributed.html
index 39d3403..1f5442c 100644
--- a/pseudo-distributed.html
+++ b/pseudo-distributed.html
@@ -7,7 +7,7 @@
   <head>
     <meta charset="UTF-8" />
     <meta name="viewport" content="width=device-width, initial-scale=1.0" />
-    <meta name="Date-Revision-yyyymmdd" content="20181117" />
+    <meta name="Date-Revision-yyyymmdd" content="20181118" />
     <meta http-equiv="Content-Language" content="en" />
     <title>Apache HBase &#x2013;  
 Running Apache HBase (TM) in pseudo-distributed mode
@@ -318,7 +318,7 @@ under the License. -->
                         <a href="https://www.apache.org/">The Apache Software Foundation</a>.
             All rights reserved.      
                     
-                  <li id="publishDate" class="pull-right">Last Published: 2018-11-17</li>
+                  <li id="publishDate" class="pull-right">Last Published: 2018-11-18</li>
             </p>
                 </div>
 

http://git-wip-us.apache.org/repos/asf/hbase-site/blob/fa03a052/replication.html
----------------------------------------------------------------------
diff --git a/replication.html b/replication.html
index 9679d74..b50a920 100644
--- a/replication.html
+++ b/replication.html
@@ -7,7 +7,7 @@
   <head>
     <meta charset="UTF-8" />
     <meta name="viewport" content="width=device-width, initial-scale=1.0" />
-    <meta name="Date-Revision-yyyymmdd" content="20181117" />
+    <meta name="Date-Revision-yyyymmdd" content="20181118" />
     <meta http-equiv="Content-Language" content="en" />
     <title>Apache HBase &#x2013; 
       Apache HBase (TM) Replication
@@ -313,7 +313,7 @@ under the License. -->
                         <a href="https://www.apache.org/">The Apache Software Foundation</a>.
             All rights reserved.      
                     
-                  <li id="publishDate" class="pull-right">Last Published: 2018-11-17</li>
+                  <li id="publishDate" class="pull-right">Last Published: 2018-11-18</li>
             </p>
                 </div>
 

http://git-wip-us.apache.org/repos/asf/hbase-site/blob/fa03a052/resources.html
----------------------------------------------------------------------
diff --git a/resources.html b/resources.html
index 13444e0..00ef3f8 100644
--- a/resources.html
+++ b/resources.html
@@ -7,7 +7,7 @@
   <head>
     <meta charset="UTF-8" />
     <meta name="viewport" content="width=device-width, initial-scale=1.0" />
-    <meta name="Date-Revision-yyyymmdd" content="20181117" />
+    <meta name="Date-Revision-yyyymmdd" content="20181118" />
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     <title>Apache HBase &#x2013; Other Apache HBase (TM) Resources</title>
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[8/9] hbase-site git commit: Published site at f555258e7abab1337ee4d39aaa1dafff72be287b.

Posted by gi...@apache.org.

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[3/9] hbase-site git commit: Published site at f555258e7abab1337ee4d39aaa1dafff72be287b.

Posted by gi...@apache.org.

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+<span class="sourceLineNo">868</span>}<a name="line.868"></a>
 
 
 

http://git-wip-us.apache.org/repos/asf/hbase-site/blob/fa03a052/devapidocs/src-html/org/apache/hadoop/hbase/master/snapshot/DisabledTableSnapshotHandler.html
----------------------------------------------------------------------
diff --git a/devapidocs/src-html/org/apache/hadoop/hbase/master/snapshot/DisabledTableSnapshotHandler.html b/devapidocs/src-html/org/apache/hadoop/hbase/master/snapshot/DisabledTableSnapshotHandler.html
index 80ce868..eebcb0f 100644
--- a/devapidocs/src-html/org/apache/hadoop/hbase/master/snapshot/DisabledTableSnapshotHandler.html
+++ b/devapidocs/src-html/org/apache/hadoop/hbase/master/snapshot/DisabledTableSnapshotHandler.html
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+<span class="sourceLineNo">126</span>  @Override<a name="line.126"></a>
+<span class="sourceLineNo">127</span>  protected boolean downgradeToSharedTableLock() {<a name="line.127"></a>
+<span class="sourceLineNo">128</span>    // for taking snapshot on disabled table, it is OK to always hold the exclusive lock, as we do<a name="line.128"></a>
+<span class="sourceLineNo">129</span>    // not need to assign the regions when there are region server crashes.<a name="line.129"></a>
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+<span class="sourceLineNo">131</span>  }<a name="line.131"></a>
+<span class="sourceLineNo">132</span>}<a name="line.132"></a>
 
 
 

http://git-wip-us.apache.org/repos/asf/hbase-site/blob/fa03a052/devapidocs/src-html/org/apache/hadoop/hbase/master/snapshot/EnabledTableSnapshotHandler.html
----------------------------------------------------------------------
diff --git a/devapidocs/src-html/org/apache/hadoop/hbase/master/snapshot/EnabledTableSnapshotHandler.html b/devapidocs/src-html/org/apache/hadoop/hbase/master/snapshot/EnabledTableSnapshotHandler.html
index f1e72ce..51dd0a5 100644
--- a/devapidocs/src-html/org/apache/hadoop/hbase/master/snapshot/EnabledTableSnapshotHandler.html
+++ b/devapidocs/src-html/org/apache/hadoop/hbase/master/snapshot/EnabledTableSnapshotHandler.html
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+<span class="sourceLineNo">137</span>  protected boolean downgradeToSharedTableLock() {<a name="line.137"></a>
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+<span class="sourceLineNo">142</span>  }<a name="line.142"></a>
+<span class="sourceLineNo">143</span>}<a name="line.143"></a>
 
 
 

http://git-wip-us.apache.org/repos/asf/hbase-site/blob/fa03a052/devapidocs/src-html/org/apache/hadoop/hbase/master/snapshot/SnapshotManager.html
----------------------------------------------------------------------
diff --git a/devapidocs/src-html/org/apache/hadoop/hbase/master/snapshot/SnapshotManager.html b/devapidocs/src-html/org/apache/hadoop/hbase/master/snapshot/SnapshotManager.html
index 768cf5d..f746c7f 100644
--- a/devapidocs/src-html/org/apache/hadoop/hbase/master/snapshot/SnapshotManager.html
+++ b/devapidocs/src-html/org/apache/hadoop/hbase/master/snapshot/SnapshotManager.html
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[4/9] hbase-site git commit: Published site at f555258e7abab1337ee4d39aaa1dafff72be287b.

Posted by gi...@apache.org.

http://git-wip-us.apache.org/repos/asf/hbase-site/blob/fa03a052/devapidocs/src-html/org/apache/hadoop/hbase/master/assignment/SplitTableRegionProcedure.StoreFileSplitter.html
----------------------------------------------------------------------
diff --git a/devapidocs/src-html/org/apache/hadoop/hbase/master/assignment/SplitTableRegionProcedure.StoreFileSplitter.html b/devapidocs/src-html/org/apache/hadoop/hbase/master/assignment/SplitTableRegionProcedure.StoreFileSplitter.html
index 2736ca7..c5b3454 100644
--- a/devapidocs/src-html/org/apache/hadoop/hbase/master/assignment/SplitTableRegionProcedure.StoreFileSplitter.html
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[7/9] hbase-site git commit: Published site at f555258e7abab1337ee4d39aaa1dafff72be287b.

Posted by gi...@apache.org.

http://git-wip-us.apache.org/repos/asf/hbase-site/blob/fa03a052/devapidocs/org/apache/hadoop/hbase/master/snapshot/TakeSnapshotHandler.html
----------------------------------------------------------------------
diff --git a/devapidocs/org/apache/hadoop/hbase/master/snapshot/TakeSnapshotHandler.html b/devapidocs/org/apache/hadoop/hbase/master/snapshot/TakeSnapshotHandler.html
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Published site at f555258e7abab1337ee4d39aaa1dafff72be287b.


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[5/9] hbase-site git commit: Published site at f555258e7abab1337ee4d39aaa1dafff72be287b.

Posted by gi...@apache.org.

http://git-wip-us.apache.org/repos/asf/hbase-site/blob/fa03a052/devapidocs/src-html/org/apache/hadoop/hbase/master/assignment/MergeTableRegionsProcedure.html
----------------------------------------------------------------------
diff --git a/devapidocs/src-html/org/apache/hadoop/hbase/master/assignment/MergeTableRegionsProcedure.html b/devapidocs/src-html/org/apache/hadoop/hbase/master/assignment/MergeTableRegionsProcedure.html
index adf4e7a..a0da8a5 100644
--- a/devapidocs/src-html/org/apache/hadoop/hbase/master/assignment/MergeTableRegionsProcedure.html
+++ b/devapidocs/src-html/org/apache/hadoop/hbase/master/assignment/MergeTableRegionsProcedure.html
@@ -488,324 +488,331 @@
 <span class="sourceLineNo">480</span>   * Prepare merge and do some check<a name="line.480"></a>
 <span class="sourceLineNo">481</span>   */<a name="line.481"></a>
 <span class="sourceLineNo">482</span>  private boolean prepareMergeRegion(final MasterProcedureEnv env) throws IOException {<a name="line.482"></a>
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+<span class="sourceLineNo">737</span>  /**<a name="line.737"></a>
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+<span class="sourceLineNo">750</span>   * retrieve it.<a name="line.750"></a>
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+<span class="sourceLineNo">760</span>      // or so. The caller should be able to deal w/ a null ServerName.<a name="line.760"></a>
+<span class="sourceLineNo">761</span>      // Let them go to the Balancer to find one to use instead.<a name="line.761"></a>
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+<span class="sourceLineNo">782</span>   * retrieve it.<a name="line.782"></a>
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+<span class="sourceLineNo">787</span>      traceEnabled = LOG.isTraceEnabled();<a name="line.787"></a>
+<span class="sourceLineNo">788</span>    }<a name="line.788"></a>
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+<span class="sourceLineNo">791</span><a name="line.791"></a>
+<span class="sourceLineNo">792</span>  /**<a name="line.792"></a>
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+<span class="sourceLineNo">799</span><a name="line.799"></a>
+<span class="sourceLineNo">800</span>  @Override<a name="line.800"></a>
+<span class="sourceLineNo">801</span>  protected boolean abort(MasterProcedureEnv env) {<a name="line.801"></a>
+<span class="sourceLineNo">802</span>    // Abort means rollback. We can't rollback all steps. HBASE-18018 added abort to all<a name="line.802"></a>
+<span class="sourceLineNo">803</span>    // Procedures. Here is a Procedure that has a PONR and cannot be aborted once it enters this<a name="line.803"></a>
+<span class="sourceLineNo">804</span>    // range of steps; what do we do for these should an operator want to cancel them? HBASE-20022.<a name="line.804"></a>
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+<span class="sourceLineNo">807</span>}<a name="line.807"></a>

[6/9] hbase-site git commit: Published site at f555258e7abab1337ee4d39aaa1dafff72be287b.

Posted by gi...@apache.org.

http://git-wip-us.apache.org/repos/asf/hbase-site/blob/fa03a052/devapidocs/src-html/org/apache/hadoop/hbase/master/assignment/AssignmentManagerUtil.html
----------------------------------------------------------------------
diff --git a/devapidocs/src-html/org/apache/hadoop/hbase/master/assignment/AssignmentManagerUtil.html b/devapidocs/src-html/org/apache/hadoop/hbase/master/assignment/AssignmentManagerUtil.html
index 703da4f..b5bb7ff 100644
--- a/devapidocs/src-html/org/apache/hadoop/hbase/master/assignment/AssignmentManagerUtil.html
+++ b/devapidocs/src-html/org/apache/hadoop/hbase/master/assignment/AssignmentManagerUtil.html
@@ -33,218 +33,217 @@
 <span class="sourceLineNo">025</span>import java.util.stream.Collectors;<a name="line.25"></a>
 <span class="sourceLineNo">026</span>import java.util.stream.IntStream;<a name="line.26"></a>
 <span class="sourceLineNo">027</span>import java.util.stream.Stream;<a name="line.27"></a>
-<span class="sourceLineNo">028</span><a name="line.28"></a>
-<span class="sourceLineNo">029</span>import org.apache.commons.lang3.ArrayUtils;<a name="line.29"></a>
-<span class="sourceLineNo">030</span>import org.apache.hadoop.hbase.HBaseIOException;<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.client.RegionInfo;<a name="line.32"></a>
-<span class="sourceLineNo">033</span>import org.apache.hadoop.hbase.client.RegionReplicaUtil;<a name="line.33"></a>
-<span class="sourceLineNo">034</span>import org.apache.hadoop.hbase.favored.FavoredNodesManager;<a name="line.34"></a>
-<span class="sourceLineNo">035</span>import org.apache.hadoop.hbase.ipc.HBaseRpcController;<a name="line.35"></a>
-<span class="sourceLineNo">036</span>import org.apache.hadoop.hbase.master.procedure.MasterProcedureEnv;<a name="line.36"></a>
-<span class="sourceLineNo">037</span>import org.apache.hadoop.hbase.wal.WALSplitter;<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><a name="line.39"></a>
-<span class="sourceLineNo">040</span>import org.apache.hbase.thirdparty.com.google.protobuf.ServiceException;<a name="line.40"></a>
-<span class="sourceLineNo">041</span><a name="line.41"></a>
-<span class="sourceLineNo">042</span>import org.apache.hadoop.hbase.shaded.protobuf.ProtobufUtil;<a name="line.42"></a>
-<span class="sourceLineNo">043</span>import org.apache.hadoop.hbase.shaded.protobuf.RequestConverter;<a name="line.43"></a>
-<span class="sourceLineNo">044</span>import org.apache.hadoop.hbase.shaded.protobuf.generated.AdminProtos.AdminService;<a name="line.44"></a>
-<span class="sourceLineNo">045</span>import org.apache.hadoop.hbase.shaded.protobuf.generated.AdminProtos.GetRegionInfoRequest;<a name="line.45"></a>
-<span class="sourceLineNo">046</span>import org.apache.hadoop.hbase.shaded.protobuf.generated.AdminProtos.GetRegionInfoResponse;<a name="line.46"></a>
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-<span class="sourceLineNo">048</span>/**<a name="line.48"></a>
-<span class="sourceLineNo">049</span> * Utility for this assignment package only.<a name="line.49"></a>
-<span class="sourceLineNo">050</span> */<a name="line.50"></a>
-<span class="sourceLineNo">051</span>@InterfaceAudience.Private<a name="line.51"></a>
-<span class="sourceLineNo">052</span>final class AssignmentManagerUtil {<a name="line.52"></a>
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-<span class="sourceLineNo">058</span>  /**<a name="line.58"></a>
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-<span class="sourceLineNo">060</span>   * @throws IOException Let it out so can report this IOE as reason for failure<a name="line.60"></a>
-<span class="sourceLineNo">061</span>   */<a name="line.61"></a>
-<span class="sourceLineNo">062</span>  static GetRegionInfoResponse getRegionInfoResponse(final MasterProcedureEnv env,<a name="line.62"></a>
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-<span class="sourceLineNo">064</span>    return getRegionInfoResponse(env, regionLocation, hri, false);<a name="line.64"></a>
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-<span class="sourceLineNo">070</span>    // TODO: There is no timeout on this controller. Set one!<a name="line.70"></a>
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-<span class="sourceLineNo">075</span>    GetRegionInfoRequest request = null;<a name="line.75"></a>
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-<span class="sourceLineNo">079</span>      request = RequestConverter.buildGetRegionInfoRequest(hri.getRegionName());<a name="line.79"></a>
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-<span class="sourceLineNo">082</span>      return admin.getRegionInfo(controller, request);<a name="line.82"></a>
-<span class="sourceLineNo">083</span>    } catch (ServiceException e) {<a name="line.83"></a>
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-<span class="sourceLineNo">087</span><a name="line.87"></a>
-<span class="sourceLineNo">088</span>  private static void lock(List&lt;RegionStateNode&gt; regionNodes) {<a name="line.88"></a>
-<span class="sourceLineNo">089</span>    regionNodes.iterator().forEachRemaining(RegionStateNode::lock);<a name="line.89"></a>
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-<span class="sourceLineNo">091</span><a name="line.91"></a>
-<span class="sourceLineNo">092</span>  private static void unlock(List&lt;RegionStateNode&gt; regionNodes) {<a name="line.92"></a>
-<span class="sourceLineNo">093</span>    for (ListIterator&lt;RegionStateNode&gt; iter = regionNodes.listIterator(regionNodes.size()); iter<a name="line.93"></a>
-<span class="sourceLineNo">094</span>      .hasPrevious();) {<a name="line.94"></a>
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-<span class="sourceLineNo">099</span>  static TransitRegionStateProcedure[] createUnassignProceduresForSplitOrMerge(<a name="line.99"></a>
-<span class="sourceLineNo">100</span>      MasterProcedureEnv env, Stream&lt;RegionInfo&gt; regions, int regionReplication)<a name="line.100"></a>
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-<span class="sourceLineNo">102</span>    List&lt;RegionStateNode&gt; regionNodes = regions<a name="line.102"></a>
-<span class="sourceLineNo">103</span>      .flatMap(hri -&gt; IntStream.range(0, regionReplication)<a name="line.103"></a>
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-<span class="sourceLineNo">106</span>      .collect(Collectors.toList());<a name="line.106"></a>
-<span class="sourceLineNo">107</span>    TransitRegionStateProcedure[] procs = new TransitRegionStateProcedure[regionNodes.size()];<a name="line.107"></a>
-<span class="sourceLineNo">108</span>    boolean rollback = true;<a name="line.108"></a>
-<span class="sourceLineNo">109</span>    int i = 0;<a name="line.109"></a>
-<span class="sourceLineNo">110</span>    // hold the lock at once, and then release it in finally. This is important as SCP may jump in<a name="line.110"></a>
-<span class="sourceLineNo">111</span>    // if we release the lock in the middle when we want to do rollback, and cause problems.<a name="line.111"></a>
-<span class="sourceLineNo">112</span>    lock(regionNodes);<a name="line.112"></a>
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-<span class="sourceLineNo">115</span>        RegionStateNode regionNode = regionNodes.get(i);<a name="line.115"></a>
-<span class="sourceLineNo">116</span>        TransitRegionStateProcedure proc =<a name="line.116"></a>
-<span class="sourceLineNo">117</span>          TransitRegionStateProcedure.unassign(env, regionNode.getRegionInfo());<a name="line.117"></a>
-<span class="sourceLineNo">118</span>        if (regionNode.getProcedure() != null) {<a name="line.118"></a>
-<span class="sourceLineNo">119</span>          throw new HBaseIOException(<a name="line.119"></a>
-<span class="sourceLineNo">120</span>            "The parent region " + regionNode + " is currently in transition, give up");<a name="line.120"></a>
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-<span class="sourceLineNo">122</span>        regionNode.setProcedure(proc);<a name="line.122"></a>
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-<span class="sourceLineNo">125</span>      // all succeeded, set rollback to false<a name="line.125"></a>
-<span class="sourceLineNo">126</span>      rollback = false;<a name="line.126"></a>
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-<span class="sourceLineNo">130</span>          i--;<a name="line.130"></a>
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-<span class="sourceLineNo">133</span>          }<a name="line.133"></a>
-<span class="sourceLineNo">134</span>          RegionStateNode regionNode = regionNodes.get(i);<a name="line.134"></a>
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-<span class="sourceLineNo">143</span>  /**<a name="line.143"></a>
-<span class="sourceLineNo">144</span>   * Create assign procedures for the give regions, according to the {@code regionReplication}.<a name="line.144"></a>
-<span class="sourceLineNo">145</span>   * &lt;p/&gt;<a name="line.145"></a>
-<span class="sourceLineNo">146</span>   * For rolling back, we will submit procedures directly to the {@code ProcedureExecutor}, so it is<a name="line.146"></a>
-<span class="sourceLineNo">147</span>   * possible that we persist the newly scheduled procedures, and then crash before persisting the<a name="line.147"></a>
-<span class="sourceLineNo">148</span>   * rollback state, so when we arrive here the second time, it is possible that some regions have<a name="line.148"></a>
-<span class="sourceLineNo">149</span>   * already been associated with a TRSP.<a name="line.149"></a>
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-<span class="sourceLineNo">151</span>   *          already in transition, otherwise we will add an assert that it should not in<a name="line.151"></a>
-<span class="sourceLineNo">152</span>   *          transition.<a name="line.152"></a>
-<span class="sourceLineNo">153</span>   */<a name="line.153"></a>
-<span class="sourceLineNo">154</span>  private static TransitRegionStateProcedure[] createAssignProcedures(MasterProcedureEnv env,<a name="line.154"></a>
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-<span class="sourceLineNo">156</span>      boolean ignoreIfInTransition) {<a name="line.156"></a>
-<span class="sourceLineNo">157</span>    // create the assign procs only for the primary region using the targetServer<a name="line.157"></a>
-<span class="sourceLineNo">158</span>    TransitRegionStateProcedure[] primaryRegionProcs =<a name="line.158"></a>
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-<span class="sourceLineNo">163</span>          regionNode.lock();<a name="line.163"></a>
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-<span class="sourceLineNo">166</span>              if (regionNode.isInTransition()) {<a name="line.166"></a>
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-<span class="sourceLineNo">172</span>              // will<a name="line.172"></a>
-<span class="sourceLineNo">173</span>              // not process it either.<a name="line.173"></a>
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-<span class="sourceLineNo">176</span>            regionNode.setProcedure(proc);<a name="line.176"></a>
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-<span class="sourceLineNo">181</span>        }).filter(p -&gt; p != null).toArray(TransitRegionStateProcedure[]::new);<a name="line.181"></a>
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-<span class="sourceLineNo">184</span>      return primaryRegionProcs;<a name="line.184"></a>
-<span class="sourceLineNo">185</span>    }<a name="line.185"></a>
-<span class="sourceLineNo">186</span>    // collect the replica region infos<a name="line.186"></a>
-<span class="sourceLineNo">187</span>    List&lt;RegionInfo&gt; replicaRegionInfos =<a name="line.187"></a>
-<span class="sourceLineNo">188</span>        new ArrayList&lt;RegionInfo&gt;(regions.size() * (regionReplication - 1));<a name="line.188"></a>
-<span class="sourceLineNo">189</span>    for (RegionInfo hri : regions) {<a name="line.189"></a>
-<span class="sourceLineNo">190</span>      // start the index from 1<a name="line.190"></a>
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-<span class="sourceLineNo">192</span>        replicaRegionInfos.add(RegionReplicaUtil.getRegionInfoForReplica(hri, i));<a name="line.192"></a>
-<span class="sourceLineNo">193</span>      }<a name="line.193"></a>
-<span class="sourceLineNo">194</span>    }<a name="line.194"></a>
-<span class="sourceLineNo">195</span>    // create round robin procs. Note that we exclude the primary region's target server<a name="line.195"></a>
-<span class="sourceLineNo">196</span>    TransitRegionStateProcedure[] replicaRegionAssignProcs =<a name="line.196"></a>
-<span class="sourceLineNo">197</span>        env.getAssignmentManager().createRoundRobinAssignProcedures(replicaRegionInfos,<a name="line.197"></a>
-<span class="sourceLineNo">198</span>          Collections.singletonList(targetServer));<a name="line.198"></a>
-<span class="sourceLineNo">199</span>    // combine both the procs and return the result<a name="line.199"></a>
-<span class="sourceLineNo">200</span>    return ArrayUtils.addAll(primaryRegionProcs, replicaRegionAssignProcs);<a name="line.200"></a>
-<span class="sourceLineNo">201</span>  }<a name="line.201"></a>
-<span class="sourceLineNo">202</span><a name="line.202"></a>
-<span class="sourceLineNo">203</span>  static TransitRegionStateProcedure[] createAssignProceduresForOpeningNewRegions(<a name="line.203"></a>
-<span class="sourceLineNo">204</span>      MasterProcedureEnv env, List&lt;RegionInfo&gt; regions, int regionReplication,<a name="line.204"></a>
-<span class="sourceLineNo">205</span>      ServerName targetServer) {<a name="line.205"></a>
-<span class="sourceLineNo">206</span>    return createAssignProcedures(env, regions, regionReplication, targetServer, false);<a name="line.206"></a>
-<span class="sourceLineNo">207</span>  }<a name="line.207"></a>
-<span class="sourceLineNo">208</span><a name="line.208"></a>
-<span class="sourceLineNo">209</span>  static void reopenRegionsForRollback(MasterProcedureEnv env, List&lt;RegionInfo&gt; regions,<a name="line.209"></a>
-<span class="sourceLineNo">210</span>      int regionReplication, ServerName targetServer) {<a name="line.210"></a>
-<span class="sourceLineNo">211</span>    TransitRegionStateProcedure[] procs =<a name="line.211"></a>
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-<span class="sourceLineNo">213</span>    if (procs.length &gt; 0) {<a name="line.213"></a>
-<span class="sourceLineNo">214</span>      env.getMasterServices().getMasterProcedureExecutor().submitProcedures(procs);<a name="line.214"></a>
-<span class="sourceLineNo">215</span>    }<a name="line.215"></a>
-<span class="sourceLineNo">216</span>  }<a name="line.216"></a>
-<span class="sourceLineNo">217</span><a name="line.217"></a>
-<span class="sourceLineNo">218</span>  static void removeNonDefaultReplicas(MasterProcedureEnv env, Stream&lt;RegionInfo&gt; regions,<a name="line.218"></a>
-<span class="sourceLineNo">219</span>      int regionReplication) {<a name="line.219"></a>
-<span class="sourceLineNo">220</span>    // Remove from in-memory states<a name="line.220"></a>
-<span class="sourceLineNo">221</span>    regions.flatMap(hri -&gt; IntStream.range(1, regionReplication)<a name="line.221"></a>
-<span class="sourceLineNo">222</span>      .mapToObj(i -&gt; RegionReplicaUtil.getRegionInfoForReplica(hri, i))).forEach(hri -&gt; {<a name="line.222"></a>
-<span class="sourceLineNo">223</span>        env.getAssignmentManager().getRegionStates().deleteRegion(hri);<a name="line.223"></a>
-<span class="sourceLineNo">224</span>        env.getMasterServices().getServerManager().removeRegion(hri);<a name="line.224"></a>
-<span class="sourceLineNo">225</span>        FavoredNodesManager fnm = env.getMasterServices().getFavoredNodesManager();<a name="line.225"></a>
-<span class="sourceLineNo">226</span>        if (fnm != null) {<a name="line.226"></a>
-<span class="sourceLineNo">227</span>          fnm.deleteFavoredNodesForRegions(Collections.singletonList(hri));<a name="line.227"></a>
-<span class="sourceLineNo">228</span>        }<a name="line.228"></a>
-<span class="sourceLineNo">229</span>      });<a name="line.229"></a>
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-<span class="sourceLineNo">234</span>      env.getMasterConfiguration(), regionInfo)) {<a name="line.234"></a>
-<span class="sourceLineNo">235</span>      throw new IOException("Recovered.edits are found in Region: " + regionInfo +<a name="line.235"></a>
-<span class="sourceLineNo">236</span>        ", abort split/merge to prevent data loss");<a name="line.236"></a>
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-<span class="sourceLineNo">239</span>}<a name="line.239"></a>
+<span class="sourceLineNo">028</span>import org.apache.commons.lang3.ArrayUtils;<a name="line.28"></a>
+<span class="sourceLineNo">029</span>import org.apache.hadoop.hbase.HBaseIOException;<a name="line.29"></a>
+<span class="sourceLineNo">030</span>import org.apache.hadoop.hbase.ServerName;<a name="line.30"></a>
+<span class="sourceLineNo">031</span>import org.apache.hadoop.hbase.client.RegionInfo;<a name="line.31"></a>
+<span class="sourceLineNo">032</span>import org.apache.hadoop.hbase.client.RegionReplicaUtil;<a name="line.32"></a>
+<span class="sourceLineNo">033</span>import org.apache.hadoop.hbase.favored.FavoredNodesManager;<a name="line.33"></a>
+<span class="sourceLineNo">034</span>import org.apache.hadoop.hbase.ipc.HBaseRpcController;<a name="line.34"></a>
+<span class="sourceLineNo">035</span>import org.apache.hadoop.hbase.master.procedure.MasterProcedureEnv;<a name="line.35"></a>
+<span class="sourceLineNo">036</span>import org.apache.hadoop.hbase.wal.WALSplitter;<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><a name="line.38"></a>
+<span class="sourceLineNo">039</span>import org.apache.hbase.thirdparty.com.google.protobuf.ServiceException;<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.RequestConverter;<a name="line.42"></a>
+<span class="sourceLineNo">043</span>import org.apache.hadoop.hbase.shaded.protobuf.generated.AdminProtos.AdminService;<a name="line.43"></a>
+<span class="sourceLineNo">044</span>import org.apache.hadoop.hbase.shaded.protobuf.generated.AdminProtos.GetRegionInfoRequest;<a name="line.44"></a>
+<span class="sourceLineNo">045</span>import org.apache.hadoop.hbase.shaded.protobuf.generated.AdminProtos.GetRegionInfoResponse;<a name="line.45"></a>
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+<span class="sourceLineNo">047</span>/**<a name="line.47"></a>
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