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From git-site-r...@apache.org
Subject [04/24] hbase-site git commit: Published site at 910b68082c8f200f0ba6395a76b7ee1c8917e401.
Date Wed, 05 Apr 2017 01:50:18 GMT
http://git-wip-us.apache.org/repos/asf/hbase-site/blob/f5caf0f9/devapidocs/src-html/org/apache/hadoop/hbase/wal/AbstractFSWALProvider.html
----------------------------------------------------------------------
diff --git a/devapidocs/src-html/org/apache/hadoop/hbase/wal/AbstractFSWALProvider.html b/devapidocs/src-html/org/apache/hadoop/hbase/wal/AbstractFSWALProvider.html
index e1a18ec..fcefc60 100644
--- a/devapidocs/src-html/org/apache/hadoop/hbase/wal/AbstractFSWALProvider.html
+++ b/devapidocs/src-html/org/apache/hadoop/hbase/wal/AbstractFSWALProvider.html
@@ -25,374 +25,475 @@
 <span class="sourceLineNo">017</span> */<a name="line.17"></a>
 <span class="sourceLineNo">018</span>package org.apache.hadoop.hbase.wal;<a name="line.18"></a>
 <span class="sourceLineNo">019</span><a name="line.19"></a>
-<span class="sourceLineNo">020</span>import java.io.IOException;<a name="line.20"></a>
-<span class="sourceLineNo">021</span>import java.util.ArrayList;<a name="line.21"></a>
-<span class="sourceLineNo">022</span>import java.util.Collections;<a name="line.22"></a>
-<span class="sourceLineNo">023</span>import java.util.List;<a name="line.23"></a>
-<span class="sourceLineNo">024</span>import java.util.concurrent.atomic.AtomicBoolean;<a name="line.24"></a>
-<span class="sourceLineNo">025</span>import java.util.regex.Pattern;<a name="line.25"></a>
-<span class="sourceLineNo">026</span><a name="line.26"></a>
-<span class="sourceLineNo">027</span>import org.apache.commons.logging.Log;<a name="line.27"></a>
-<span class="sourceLineNo">028</span>import org.apache.commons.logging.LogFactory;<a name="line.28"></a>
-<span class="sourceLineNo">029</span>import org.apache.hadoop.conf.Configuration;<a name="line.29"></a>
-<span class="sourceLineNo">030</span>import org.apache.hadoop.fs.FSDataInputStream;<a name="line.30"></a>
-<span class="sourceLineNo">031</span>import org.apache.hadoop.fs.FileSystem;<a name="line.31"></a>
-<span class="sourceLineNo">032</span>import org.apache.hadoop.fs.Path;<a name="line.32"></a>
-<span class="sourceLineNo">033</span>import org.apache.hadoop.hbase.HConstants;<a name="line.33"></a>
-<span class="sourceLineNo">034</span>import org.apache.hadoop.hbase.ServerName;<a name="line.34"></a>
-<span class="sourceLineNo">035</span>import org.apache.hadoop.hbase.classification.InterfaceAudience;<a name="line.35"></a>
-<span class="sourceLineNo">036</span>import org.apache.hadoop.hbase.classification.InterfaceStability;<a name="line.36"></a>
-<span class="sourceLineNo">037</span>import org.apache.hadoop.hbase.regionserver.wal.AbstractFSWAL;<a name="line.37"></a>
-<span class="sourceLineNo">038</span>import org.apache.hadoop.hbase.regionserver.wal.WALActionsListener;<a name="line.38"></a>
-<span class="sourceLineNo">039</span><a name="line.39"></a>
-<span class="sourceLineNo">040</span>import com.google.common.annotations.VisibleForTesting;<a name="line.40"></a>
-<span class="sourceLineNo">041</span><a name="line.41"></a>
-<span class="sourceLineNo">042</span>/**<a name="line.42"></a>
-<span class="sourceLineNo">043</span> * Base class of a WAL Provider that returns a single thread safe WAL that writes to Hadoop FS. By<a name="line.43"></a>
-<span class="sourceLineNo">044</span> * default, this implementation picks a directory in Hadoop FS based on a combination of<a name="line.44"></a>
-<span class="sourceLineNo">045</span> * &lt;ul&gt;<a name="line.45"></a>
-<span class="sourceLineNo">046</span> * &lt;li&gt;the HBase root directory<a name="line.46"></a>
-<span class="sourceLineNo">047</span> * &lt;li&gt;HConstants.HREGION_LOGDIR_NAME<a name="line.47"></a>
-<span class="sourceLineNo">048</span> * &lt;li&gt;the given factory's factoryId (usually identifying the regionserver by host:port)<a name="line.48"></a>
-<span class="sourceLineNo">049</span> * &lt;/ul&gt;<a name="line.49"></a>
-<span class="sourceLineNo">050</span> * It also uses the providerId to differentiate among files.<a name="line.50"></a>
-<span class="sourceLineNo">051</span> */<a name="line.51"></a>
-<span class="sourceLineNo">052</span>@InterfaceAudience.Private<a name="line.52"></a>
-<span class="sourceLineNo">053</span>@InterfaceStability.Evolving<a name="line.53"></a>
-<span class="sourceLineNo">054</span>public abstract class AbstractFSWALProvider&lt;T extends AbstractFSWAL&lt;?&gt;&gt; implements WALProvider {<a name="line.54"></a>
-<span class="sourceLineNo">055</span><a name="line.55"></a>
-<span class="sourceLineNo">056</span>  private static final Log LOG = LogFactory.getLog(AbstractFSWALProvider.class);<a name="line.56"></a>
-<span class="sourceLineNo">057</span><a name="line.57"></a>
-<span class="sourceLineNo">058</span>  // Only public so classes back in regionserver.wal can access<a name="line.58"></a>
-<span class="sourceLineNo">059</span>  public interface Reader extends WAL.Reader {<a name="line.59"></a>
-<span class="sourceLineNo">060</span>    /**<a name="line.60"></a>
-<span class="sourceLineNo">061</span>     * @param fs File system.<a name="line.61"></a>
-<span class="sourceLineNo">062</span>     * @param path Path.<a name="line.62"></a>
-<span class="sourceLineNo">063</span>     * @param c Configuration.<a name="line.63"></a>
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-<span class="sourceLineNo">065</span>     */<a name="line.65"></a>
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-<span class="sourceLineNo">068</span><a name="line.68"></a>
-<span class="sourceLineNo">069</span>  protected volatile T wal;<a name="line.69"></a>
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-<span class="sourceLineNo">073</span>  protected String providerId = null;<a name="line.73"></a>
-<span class="sourceLineNo">074</span>  protected AtomicBoolean initialized = new AtomicBoolean(false);<a name="line.74"></a>
-<span class="sourceLineNo">075</span>  // for default wal provider, logPrefix won't change<a name="line.75"></a>
-<span class="sourceLineNo">076</span>  protected String logPrefix = null;<a name="line.76"></a>
-<span class="sourceLineNo">077</span><a name="line.77"></a>
-<span class="sourceLineNo">078</span>  /**<a name="line.78"></a>
-<span class="sourceLineNo">079</span>   * we synchronized on walCreateLock to prevent wal recreation in different threads<a name="line.79"></a>
-<span class="sourceLineNo">080</span>   */<a name="line.80"></a>
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-<span class="sourceLineNo">096</span>    this.factory = factory;<a name="line.96"></a>
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-<span class="sourceLineNo">099</span>    this.providerId = providerId;<a name="line.99"></a>
-<span class="sourceLineNo">100</span>    // get log prefix<a name="line.100"></a>
-<span class="sourceLineNo">101</span>    StringBuilder sb = new StringBuilder().append(factory.factoryId);<a name="line.101"></a>
-<span class="sourceLineNo">102</span>    if (providerId != null) {<a name="line.102"></a>
-<span class="sourceLineNo">103</span>      if (providerId.startsWith(WAL_FILE_NAME_DELIMITER)) {<a name="line.103"></a>
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-<span class="sourceLineNo">114</span>  public List&lt;WAL&gt; getWALs() throws IOException {<a name="line.114"></a>
-<span class="sourceLineNo">115</span>    if (wal == null) {<a name="line.115"></a>
-<span class="sourceLineNo">116</span>      return Collections.emptyList();<a name="line.116"></a>
-<span class="sourceLineNo">117</span>    }<a name="line.117"></a>
-<span class="sourceLineNo">118</span>    List&lt;WAL&gt; wals = new ArrayList&lt;&gt;(1);<a name="line.118"></a>
-<span class="sourceLineNo">119</span>    wals.add(wal);<a name="line.119"></a>
-<span class="sourceLineNo">120</span>    return wals;<a name="line.120"></a>
-<span class="sourceLineNo">121</span>  }<a name="line.121"></a>
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-<span class="sourceLineNo">123</span>  @Override<a name="line.123"></a>
-<span class="sourceLineNo">124</span>  public T getWAL(byte[] identifier, byte[] namespace) throws IOException {<a name="line.124"></a>
-<span class="sourceLineNo">125</span>    T walCopy = wal;<a name="line.125"></a>
-<span class="sourceLineNo">126</span>    if (walCopy == null) {<a name="line.126"></a>
-<span class="sourceLineNo">127</span>      // only lock when need to create wal, and need to lock since<a name="line.127"></a>
-<span class="sourceLineNo">128</span>      // creating hlog on fs is time consuming<a name="line.128"></a>
-<span class="sourceLineNo">129</span>      synchronized (walCreateLock) {<a name="line.129"></a>
-<span class="sourceLineNo">130</span>        walCopy = wal;<a name="line.130"></a>
-<span class="sourceLineNo">131</span>        if (walCopy == null) {<a name="line.131"></a>
-<span class="sourceLineNo">132</span>          walCopy = createWAL();<a name="line.132"></a>
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-<span class="sourceLineNo">141</span><a name="line.141"></a>
-<span class="sourceLineNo">142</span>  protected abstract void doInit(Configuration conf) throws IOException;<a name="line.142"></a>
+<span class="sourceLineNo">020</span>import java.io.FileNotFoundException;<a name="line.20"></a>
+<span class="sourceLineNo">021</span>import java.io.IOException;<a name="line.21"></a>
+<span class="sourceLineNo">022</span>import java.util.ArrayList;<a name="line.22"></a>
+<span class="sourceLineNo">023</span>import java.util.Collections;<a name="line.23"></a>
+<span class="sourceLineNo">024</span>import java.util.List;<a name="line.24"></a>
+<span class="sourceLineNo">025</span>import java.util.concurrent.atomic.AtomicBoolean;<a name="line.25"></a>
+<span class="sourceLineNo">026</span>import java.util.regex.Pattern;<a name="line.26"></a>
+<span class="sourceLineNo">027</span><a name="line.27"></a>
+<span class="sourceLineNo">028</span>import org.apache.commons.logging.Log;<a name="line.28"></a>
+<span class="sourceLineNo">029</span>import org.apache.commons.logging.LogFactory;<a name="line.29"></a>
+<span class="sourceLineNo">030</span>import org.apache.hadoop.conf.Configuration;<a name="line.30"></a>
+<span class="sourceLineNo">031</span>import org.apache.hadoop.fs.FSDataInputStream;<a name="line.31"></a>
+<span class="sourceLineNo">032</span>import org.apache.hadoop.fs.FileSystem;<a name="line.32"></a>
+<span class="sourceLineNo">033</span>import org.apache.hadoop.fs.Path;<a name="line.33"></a>
+<span class="sourceLineNo">034</span>import org.apache.hadoop.hbase.HConstants;<a name="line.34"></a>
+<span class="sourceLineNo">035</span>import org.apache.hadoop.hbase.ServerName;<a name="line.35"></a>
+<span class="sourceLineNo">036</span>import org.apache.hadoop.hbase.classification.InterfaceAudience;<a name="line.36"></a>
+<span class="sourceLineNo">037</span>import org.apache.hadoop.hbase.classification.InterfaceStability;<a name="line.37"></a>
+<span class="sourceLineNo">038</span>import org.apache.hadoop.hbase.regionserver.wal.AbstractFSWAL;<a name="line.38"></a>
+<span class="sourceLineNo">039</span>import org.apache.hadoop.hbase.regionserver.wal.WALActionsListener;<a name="line.39"></a>
+<span class="sourceLineNo">040</span>import org.apache.hadoop.hbase.util.CancelableProgressable;<a name="line.40"></a>
+<span class="sourceLineNo">041</span>import org.apache.hadoop.hbase.util.FSUtils;<a name="line.41"></a>
+<span class="sourceLineNo">042</span>import org.apache.hadoop.hbase.util.LeaseNotRecoveredException;<a name="line.42"></a>
+<span class="sourceLineNo">043</span><a name="line.43"></a>
+<span class="sourceLineNo">044</span>import com.google.common.annotations.VisibleForTesting;<a name="line.44"></a>
+<span class="sourceLineNo">045</span><a name="line.45"></a>
+<span class="sourceLineNo">046</span>/**<a name="line.46"></a>
+<span class="sourceLineNo">047</span> * Base class of a WAL Provider that returns a single thread safe WAL that writes to Hadoop FS. By<a name="line.47"></a>
+<span class="sourceLineNo">048</span> * default, this implementation picks a directory in Hadoop FS based on a combination of<a name="line.48"></a>
+<span class="sourceLineNo">049</span> * &lt;ul&gt;<a name="line.49"></a>
+<span class="sourceLineNo">050</span> * &lt;li&gt;the HBase root directory<a name="line.50"></a>
+<span class="sourceLineNo">051</span> * &lt;li&gt;HConstants.HREGION_LOGDIR_NAME<a name="line.51"></a>
+<span class="sourceLineNo">052</span> * &lt;li&gt;the given factory's factoryId (usually identifying the regionserver by host:port)<a name="line.52"></a>
+<span class="sourceLineNo">053</span> * &lt;/ul&gt;<a name="line.53"></a>
+<span class="sourceLineNo">054</span> * It also uses the providerId to differentiate among files.<a name="line.54"></a>
+<span class="sourceLineNo">055</span> */<a name="line.55"></a>
+<span class="sourceLineNo">056</span>@InterfaceAudience.Private<a name="line.56"></a>
+<span class="sourceLineNo">057</span>@InterfaceStability.Evolving<a name="line.57"></a>
+<span class="sourceLineNo">058</span>public abstract class AbstractFSWALProvider&lt;T extends AbstractFSWAL&lt;?&gt;&gt; implements WALProvider {<a name="line.58"></a>
+<span class="sourceLineNo">059</span><a name="line.59"></a>
+<span class="sourceLineNo">060</span>  private static final Log LOG = LogFactory.getLog(AbstractFSWALProvider.class);<a name="line.60"></a>
+<span class="sourceLineNo">061</span><a name="line.61"></a>
+<span class="sourceLineNo">062</span>  // Only public so classes back in regionserver.wal can access<a name="line.62"></a>
+<span class="sourceLineNo">063</span>  public interface Reader extends WAL.Reader {<a name="line.63"></a>
+<span class="sourceLineNo">064</span>    /**<a name="line.64"></a>
+<span class="sourceLineNo">065</span>     * @param fs File system.<a name="line.65"></a>
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+<span class="sourceLineNo">079</span>  // for default wal provider, logPrefix won't change<a name="line.79"></a>
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+<span class="sourceLineNo">081</span><a name="line.81"></a>
+<span class="sourceLineNo">082</span>  /**<a name="line.82"></a>
+<span class="sourceLineNo">083</span>   * we synchronized on walCreateLock to prevent wal recreation in different threads<a name="line.83"></a>
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+<span class="sourceLineNo">087</span>  /**<a name="line.87"></a>
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+<span class="sourceLineNo">092</span>   *          null<a name="line.92"></a>
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+<span class="sourceLineNo">123</span>    wals.add(wal);<a name="line.123"></a>
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-<span class="sourceLineNo">382</span>   */<a name="line.382"></a>
-<span class="sourceLineNo">383</span>  public static String getWALPrefixFromWALName(String name) {<a name="line.383"></a>
-<span class="sourceLineNo">384</span>    int endIndex = name.replaceAll(META_WAL_PROVIDER_ID, "").lastIndexOf(".");<a name="line.384"></a>
-<span class="sourceLineNo">385</span>    return name.substring(0, endIndex);<a name="line.385"></a>
-<span class="sourceLineNo">386</span>  }<a name="line.386"></a>
-<span class="sourceLineNo">387</span>}<a name="line.387"></a>
+<span class="sourceLineNo">364</span>  public static boolean isMetaFile(Path p) {<a name="line.364"></a>
+<span class="sourceLineNo">365</span>    return isMetaFile(p.getName());<a name="line.365"></a>
+<span class="sourceLineNo">366</span>  }<a name="line.366"></a>
+<span class="sourceLineNo">367</span><a name="line.367"></a>
+<span class="sourceLineNo">368</span>  public static boolean isMetaFile(String p) {<a name="line.368"></a>
+<span class="sourceLineNo">369</span>    if (p != null &amp;&amp; p.endsWith(META_WAL_PROVIDER_ID)) {<a name="line.369"></a>
+<span class="sourceLineNo">370</span>      return true;<a name="line.370"></a>
+<span class="sourceLineNo">371</span>    }<a name="line.371"></a>
+<span class="sourceLineNo">372</span>    return false;<a name="line.372"></a>
+<span class="sourceLineNo">373</span>  }<a name="line.373"></a>
+<span class="sourceLineNo">374</span><a name="line.374"></a>
+<span class="sourceLineNo">375</span>  public static boolean isArchivedLogFile(Path p) {<a name="line.375"></a>
+<span class="sourceLineNo">376</span>    String oldLog = Path.SEPARATOR + HConstants.HREGION_OLDLOGDIR_NAME + Path.SEPARATOR;<a name="line.376"></a>
+<span class="sourceLineNo">377</span>    return p.toString().contains(oldLog);<a name="line.377"></a>
+<span class="sourceLineNo">378</span>  }<a name="line.378"></a>
+<span class="sourceLineNo">379</span><a name="line.379"></a>
+<span class="sourceLineNo">380</span>  /**<a name="line.380"></a>
+<span class="sourceLineNo">381</span>   * Get the archived WAL file path<a name="line.381"></a>
+<span class="sourceLineNo">382</span>   * @param path - active WAL file path<a name="line.382"></a>
+<span class="sourceLineNo">383</span>   * @param conf - configuration<a name="line.383"></a>
+<span class="sourceLineNo">384</span>   * @return archived path if exists, path - otherwise<a name="line.384"></a>
+<span class="sourceLineNo">385</span>   * @throws IOException exception<a name="line.385"></a>
+<span class="sourceLineNo">386</span>   */<a name="line.386"></a>
+<span class="sourceLineNo">387</span>  public static Path getArchivedLogPath(Path path, Configuration conf) throws IOException {<a name="line.387"></a>
+<span class="sourceLineNo">388</span>    Path rootDir = FSUtils.getRootDir(conf);<a name="line.388"></a>
+<span class="sourceLineNo">389</span>    Path oldLogDir = new Path(rootDir, HConstants.HREGION_OLDLOGDIR_NAME);<a name="line.389"></a>
+<span class="sourceLineNo">390</span>    Path archivedLogLocation = new Path(oldLogDir, path.getName());<a name="line.390"></a>
+<span class="sourceLineNo">391</span>    final FileSystem fs = FSUtils.getCurrentFileSystem(conf);<a name="line.391"></a>
+<span class="sourceLineNo">392</span><a name="line.392"></a>
+<span class="sourceLineNo">393</span>    if (fs.exists(archivedLogLocation)) {<a name="line.393"></a>
+<span class="sourceLineNo">394</span>      LOG.info("Log " + path + " was moved to " + archivedLogLocation);<a name="line.394"></a>
+<span class="sourceLineNo">395</span>      return archivedLogLocation;<a name="line.395"></a>
+<span class="sourceLineNo">396</span>    } else {<a name="line.396"></a>
+<span class="sourceLineNo">397</span>      LOG.error("Couldn't locate log: " + path);<a name="line.397"></a>
+<span class="sourceLineNo">398</span>      return path;<a name="line.398"></a>
+<span class="sourceLineNo">399</span>    }<a name="line.399"></a>
+<span class="sourceLineNo">400</span>  }<a name="line.400"></a>
+<span class="sourceLineNo">401</span><a name="line.401"></a>
+<span class="sourceLineNo">402</span>  /**<a name="line.402"></a>
+<span class="sourceLineNo">403</span>   * Opens WAL reader with retries and<a name="line.403"></a>
+<span class="sourceLineNo">404</span>   * additional exception handling<a name="line.404"></a>
+<span class="sourceLineNo">405</span>   * @param path path to WAL file<a name="line.405"></a>
+<span class="sourceLineNo">406</span>   * @param conf configuration<a name="line.406"></a>
+<span class="sourceLineNo">407</span>   * @return WAL Reader instance<a name="line.407"></a>
+<span class="sourceLineNo">408</span>   * @throws IOException<a name="line.408"></a>
+<span class="sourceLineNo">409</span>   */<a name="line.409"></a>
+<span class="sourceLineNo">410</span>  public static org.apache.hadoop.hbase.wal.WAL.Reader<a name="line.410"></a>
+<span class="sourceLineNo">411</span>    openReader(Path path, Configuration conf)<a name="line.411"></a>
+<span class="sourceLineNo">412</span>        throws IOException<a name="line.412"></a>
+<span class="sourceLineNo">413</span><a name="line.413"></a>
+<span class="sourceLineNo">414</span>  {<a name="line.414"></a>
+<span class="sourceLineNo">415</span>    long retryInterval = 2000; // 2 sec<a name="line.415"></a>
+<span class="sourceLineNo">416</span>    int maxAttempts = 30;<a name="line.416"></a>
+<span class="sourceLineNo">417</span>    int attempt = 0;<a name="line.417"></a>
+<span class="sourceLineNo">418</span>    Exception ee = null;<a name="line.418"></a>
+<span class="sourceLineNo">419</span>    org.apache.hadoop.hbase.wal.WAL.Reader reader = null;<a name="line.419"></a>
+<span class="sourceLineNo">420</span>    while (reader == null &amp;&amp; attempt++ &lt; maxAttempts) {<a name="line.420"></a>
+<span class="sourceLineNo">421</span>      try {<a name="line.421"></a>
+<span class="sourceLineNo">422</span>        // Detect if this is a new file, if so get a new reader else<a name="line.422"></a>
+<span class="sourceLineNo">423</span>        // reset the current reader so that we see the new data<a name="line.423"></a>
+<span class="sourceLineNo">424</span>        reader = WALFactory.createReader(path.getFileSystem(conf), path, conf);<a name="line.424"></a>
+<span class="sourceLineNo">425</span>        return reader;<a name="line.425"></a>
+<span class="sourceLineNo">426</span>      } catch (FileNotFoundException fnfe) {<a name="line.426"></a>
+<span class="sourceLineNo">427</span>        // If the log was archived, continue reading from there<a name="line.427"></a>
+<span class="sourceLineNo">428</span>        Path archivedLog = AbstractFSWALProvider.getArchivedLogPath(path, conf);<a name="line.428"></a>
+<span class="sourceLineNo">429</span>        if (path != archivedLog) {<a name="line.429"></a>
+<span class="sourceLineNo">430</span>          return openReader(archivedLog, conf);<a name="line.430"></a>
+<span class="sourceLineNo">431</span>        } else {<a name="line.431"></a>
+<span class="sourceLineNo">432</span>          throw fnfe;<a name="line.432"></a>
+<span class="sourceLineNo">433</span>        }<a name="line.433"></a>
+<span class="sourceLineNo">434</span>      } catch (LeaseNotRecoveredException lnre) {<a name="line.434"></a>
+<span class="sourceLineNo">435</span>        // HBASE-15019 the WAL was not closed due to some hiccup.<a name="line.435"></a>
+<span class="sourceLineNo">436</span>        LOG.warn("Try to recover the WAL lease " + path, lnre);<a name="line.436"></a>
+<span class="sourceLineNo">437</span>        recoverLease(conf, path);<a name="line.437"></a>
+<span class="sourceLineNo">438</span>        reader = null;<a name="line.438"></a>
+<span class="sourceLineNo">439</span>        ee = lnre;<a name="line.439"></a>
+<span class="sourceLineNo">440</span>      } catch (NullPointerException npe) {<a name="line.440"></a>
+<span class="sourceLineNo">441</span>        // Workaround for race condition in HDFS-4380<a name="line.441"></a>
+<span class="sourceLineNo">442</span>        // which throws a NPE if we open a file before any data node has the most recent block<a name="line.442"></a>
+<span class="sourceLineNo">443</span>        // Just sleep and retry. Will require re-reading compressed WALs for compressionContext.<a name="line.443"></a>
+<span class="sourceLineNo">444</span>        LOG.warn("Got NPE opening reader, will retry.");<a name="line.444"></a>
+<span class="sourceLineNo">445</span>        reader = null;<a name="line.445"></a>
+<span class="sourceLineNo">446</span>        ee = npe;<a name="line.446"></a>
+<span class="sourceLineNo">447</span>      }<a name="line.447"></a>
+<span class="sourceLineNo">448</span>      if (reader == null) {<a name="line.448"></a>
+<span class="sourceLineNo">449</span>        // sleep before next attempt<a name="line.449"></a>
+<span class="sourceLineNo">450</span>        try {<a name="line.450"></a>
+<span class="sourceLineNo">451</span>          Thread.sleep(retryInterval);<a name="line.451"></a>
+<span class="sourceLineNo">452</span>        } catch (InterruptedException e) {<a name="line.452"></a>
+<span class="sourceLineNo">453</span>        }<a name="line.453"></a>
+<span class="sourceLineNo">454</span>      }<a name="line.454"></a>
+<span class="sourceLineNo">455</span>    }<a name="line.455"></a>
+<span class="sourceLineNo">456</span>    throw new IOException("Could not open reader", ee);<a name="line.456"></a>
+<span class="sourceLineNo">457</span>  }<a name="line.457"></a>
+<span class="sourceLineNo">458</span><a name="line.458"></a>
+<span class="sourceLineNo">459</span>  // For HBASE-15019<a name="line.459"></a>
+<span class="sourceLineNo">460</span>  private static void recoverLease(final Configuration conf, final Path path) {<a name="line.460"></a>
+<span class="sourceLineNo">461</span>    try {<a name="line.461"></a>
+<span class="sourceLineNo">462</span>      final FileSystem dfs = FSUtils.getCurrentFileSystem(conf);<a name="line.462"></a>
+<span class="sourceLineNo">463</span>      FSUtils fsUtils = FSUtils.getInstance(dfs, conf);<a name="line.463"></a>
+<span class="sourceLineNo">464</span>      fsUtils.recoverFileLease(dfs, path, conf, new CancelableProgressable() {<a name="line.464"></a>
+<span class="sourceLineNo">465</span>        @Override<a name="line.465"></a>
+<span class="sourceLineNo">466</span>        public boolean progress() {<a name="line.466"></a>
+<span class="sourceLineNo">467</span>          LOG.debug("Still trying to recover WAL lease: " + path);<a name="line.467"></a>
+<span class="sourceLineNo">468</span>          return true;<a name="line.468"></a>
+<span class="sourceLineNo">469</span>        }<a name="line.469"></a>
+<span class="sourceLineNo">470</span>      });<a name="line.470"></a>
+<span class="sourceLineNo">471</span>    } catch (IOException e) {<a name="line.471"></a>
+<span class="sourceLineNo">472</span>      LOG.warn("unable to recover lease for WAL: " + path, e);<a name="line.472"></a>
+<span class="sourceLineNo">473</span>    }<a name="line.473"></a>
+<span class="sourceLineNo">474</span>  }<a name="line.474"></a>
+<span class="sourceLineNo">475</span><a name="line.475"></a>
+<span class="sourceLineNo">476</span><a name="line.476"></a>
+<span class="sourceLineNo">477</span>  /**<a name="line.477"></a>
+<span class="sourceLineNo">478</span>   * Get prefix of the log from its name, assuming WAL name in format of<a name="line.478"></a>
+<span class="sourceLineNo">479</span>   * log_prefix.filenumber.log_suffix<a name="line.479"></a>
+<span class="sourceLineNo">480</span>   * @param name Name of the WAL to parse<a name="line.480"></a>
+<span class="sourceLineNo">481</span>   * @return prefix of the log<a name="line.481"></a>
+<span class="sourceLineNo">482</span>   * @see AbstractFSWAL#getCurrentFileName()<a name="line.482"></a>
+<span class="sourceLineNo">483</span>   */<a name="line.483"></a>
+<span class="sourceLineNo">484</span>  public static String getWALPrefixFromWALName(String name) {<a name="line.484"></a>
+<span class="sourceLineNo">485</span>    int endIndex = name.replaceAll(META_WAL_PROVIDER_ID, "").lastIndexOf(".");<a name="line.485"></a>
+<span class="sourceLineNo">486</span>    return name.substring(0, endIndex);<a name="line.486"></a>
+<span class="sourceLineNo">487</span>  }<a name="line.487"></a>
+<span class="sourceLineNo">488</span>}<a name="line.488"></a>
 
 
 

http://git-wip-us.apache.org/repos/asf/hbase-site/blob/f5caf0f9/export_control.html
----------------------------------------------------------------------
diff --git a/export_control.html b/export_control.html
index 9108f3b..49f5062 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="20170404" />
+    <meta name="Date-Revision-yyyymmdd" content="20170405" />
     <meta http-equiv="Content-Language" content="en" />
     <title>Apache HBase &#x2013; 
       Export Control
@@ -348,7 +348,7 @@ 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: 2017-04-04</li>
+                  <li id="publishDate" class="pull-right">Last Published: 2017-04-05</li>
             </p>
                 </div>
 

http://git-wip-us.apache.org/repos/asf/hbase-site/blob/f5caf0f9/hbase-annotations/checkstyle.html
----------------------------------------------------------------------
diff --git a/hbase-annotations/checkstyle.html b/hbase-annotations/checkstyle.html
index db0d528..d06eeb4 100644
--- a/hbase-annotations/checkstyle.html
+++ b/hbase-annotations/checkstyle.html
@@ -1,5 +1,5 @@
 <!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd">
-<!-- Generated by Apache Maven Doxia Site Renderer 1.6 at 2017-04-04 -->
+<!-- Generated by Apache Maven Doxia Site Renderer 1.6 at 2017-04-05 -->
 <html xmlns="http://www.w3.org/1999/xhtml" xml:lang="en" lang="en">
   <head>
     <meta http-equiv="Content-Type" content="text/html; charset=UTF-8" />
@@ -10,7 +10,7 @@
       @import url("./css/site.css");
     </style>
     <link rel="stylesheet" href="./css/print.css" type="text/css" media="print" />
-    <meta name="Date-Revision-yyyymmdd" content="20170404" />
+    <meta name="Date-Revision-yyyymmdd" content="20170405" />
     <meta http-equiv="Content-Language" content="en" />
         
         </head>
@@ -27,7 +27,7 @@
             
                     
                 <div class="xleft">
-        <span id="publishDate">Last Published: 2017-04-04</span>
+        <span id="publishDate">Last Published: 2017-04-05</span>
                   &nbsp;| <span id="projectVersion">Version: 2.0.0-SNAPSHOT</span>
                       </div>
             <div class="xright">                    <a href="./" title="Apache HBase - Annotations">Apache HBase - Annotations</a>

http://git-wip-us.apache.org/repos/asf/hbase-site/blob/f5caf0f9/hbase-annotations/dependencies.html
----------------------------------------------------------------------
diff --git a/hbase-annotations/dependencies.html b/hbase-annotations/dependencies.html
index 9d1cdcc..a2a33ea 100644
--- a/hbase-annotations/dependencies.html
+++ b/hbase-annotations/dependencies.html
@@ -1,5 +1,5 @@
 <!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd">
-<!-- Generated by Apache Maven Doxia Site Renderer 1.6 at 2017-04-04 -->
+<!-- Generated by Apache Maven Doxia Site Renderer 1.6 at 2017-04-05 -->
 <html xmlns="http://www.w3.org/1999/xhtml" xml:lang="en" lang="en">
   <head>
     <meta http-equiv="Content-Type" content="text/html; charset=UTF-8" />
@@ -10,7 +10,7 @@
       @import url("./css/site.css");
     </style>
     <link rel="stylesheet" href="./css/print.css" type="text/css" media="print" />
-    <meta name="Date-Revision-yyyymmdd" content="20170404" />
+    <meta name="Date-Revision-yyyymmdd" content="20170405" />
     <meta http-equiv="Content-Language" content="en" />
         
         </head>
@@ -27,7 +27,7 @@
             
                     
                 <div class="xleft">
-        <span id="publishDate">Last Published: 2017-04-04</span>
+        <span id="publishDate">Last Published: 2017-04-05</span>
                   &nbsp;| <span id="projectVersion">Version: 2.0.0-SNAPSHOT</span>
                       </div>
             <div class="xright">                    <a href="./" title="Apache HBase - Annotations">Apache HBase - Annotations</a>

http://git-wip-us.apache.org/repos/asf/hbase-site/blob/f5caf0f9/hbase-annotations/dependency-convergence.html
----------------------------------------------------------------------
diff --git a/hbase-annotations/dependency-convergence.html b/hbase-annotations/dependency-convergence.html
index 5d22063..3a31c87 100644
--- a/hbase-annotations/dependency-convergence.html
+++ b/hbase-annotations/dependency-convergence.html
@@ -1,5 +1,5 @@
 <!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd">
-<!-- Generated by Apache Maven Doxia Site Renderer 1.6 at 2017-04-04 -->
+<!-- Generated by Apache Maven Doxia Site Renderer 1.6 at 2017-04-05 -->
 <html xmlns="http://www.w3.org/1999/xhtml" xml:lang="en" lang="en">
   <head>
     <meta http-equiv="Content-Type" content="text/html; charset=UTF-8" />
@@ -10,7 +10,7 @@
       @import url("./css/site.css");
     </style>
     <link rel="stylesheet" href="./css/print.css" type="text/css" media="print" />
-    <meta name="Date-Revision-yyyymmdd" content="20170404" />
+    <meta name="Date-Revision-yyyymmdd" content="20170405" />
     <meta http-equiv="Content-Language" content="en" />
         
         </head>
@@ -27,7 +27,7 @@
             
                     
                 <div class="xleft">
-        <span id="publishDate">Last Published: 2017-04-04</span>
+        <span id="publishDate">Last Published: 2017-04-05</span>
                   &nbsp;| <span id="projectVersion">Version: 2.0.0-SNAPSHOT</span>
                       </div>
             <div class="xright">                    <a href="./" title="Apache HBase - Annotations">Apache HBase - Annotations</a>

http://git-wip-us.apache.org/repos/asf/hbase-site/blob/f5caf0f9/hbase-annotations/dependency-info.html
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diff --git a/hbase-annotations/dependency-info.html b/hbase-annotations/dependency-info.html
index aad7395..1310cc9 100644
--- a/hbase-annotations/dependency-info.html
+++ b/hbase-annotations/dependency-info.html
@@ -1,5 +1,5 @@
 <!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd">
-<!-- Generated by Apache Maven Doxia Site Renderer 1.6 at 2017-04-04 -->
+<!-- Generated by Apache Maven Doxia Site Renderer 1.6 at 2017-04-05 -->
 <html xmlns="http://www.w3.org/1999/xhtml" xml:lang="en" lang="en">
   <head>
     <meta http-equiv="Content-Type" content="text/html; charset=UTF-8" />
@@ -10,7 +10,7 @@
       @import url("./css/site.css");
     </style>
     <link rel="stylesheet" href="./css/print.css" type="text/css" media="print" />
-    <meta name="Date-Revision-yyyymmdd" content="20170404" />
+    <meta name="Date-Revision-yyyymmdd" content="20170405" />
     <meta http-equiv="Content-Language" content="en" />
         
         </head>
@@ -27,7 +27,7 @@
             
                     
                 <div class="xleft">
-        <span id="publishDate">Last Published: 2017-04-04</span>
+        <span id="publishDate">Last Published: 2017-04-05</span>
                   &nbsp;| <span id="projectVersion">Version: 2.0.0-SNAPSHOT</span>
                       </div>
             <div class="xright">                    <a href="./" title="Apache HBase - Annotations">Apache HBase - Annotations</a>


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