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Posted to commits@hbase.apache.org by gi...@apache.org on 2018/09/29 14:52:40 UTC

[22/41] hbase-site git commit: Published site at fdbaa4c3f0253700d12b6bd61cacf29ca7fbc19f.

http://git-wip-us.apache.org/repos/asf/hbase-site/blob/83fd16f2/devapidocs/src-html/org/apache/hadoop/hbase/regionserver/HRegionServer.CompactionChecker.html
----------------------------------------------------------------------
diff --git a/devapidocs/src-html/org/apache/hadoop/hbase/regionserver/HRegionServer.CompactionChecker.html b/devapidocs/src-html/org/apache/hadoop/hbase/regionserver/HRegionServer.CompactionChecker.html
index 803ed21..cb9d178 100644
--- a/devapidocs/src-html/org/apache/hadoop/hbase/regionserver/HRegionServer.CompactionChecker.html
+++ b/devapidocs/src-html/org/apache/hadoop/hbase/regionserver/HRegionServer.CompactionChecker.html
@@ -1765,2040 +1765,2045 @@
 <span class="sourceLineNo">1757</span><a name="line.1757"></a>
 <span class="sourceLineNo">1758</span>  static class PeriodicMemStoreFlusher extends ScheduledChore {<a name="line.1758"></a>
 <span class="sourceLineNo">1759</span>    final HRegionServer server;<a name="line.1759"></a>
-<span class="sourceLineNo">1760</span>    final static int RANGE_OF_DELAY = 5 * 60 * 1000; // 5 min in milliseconds<a name="line.1760"></a>
+<span class="sourceLineNo">1760</span>    final static int RANGE_OF_DELAY = 5 * 60; // 5 min in seconds<a name="line.1760"></a>
 <span class="sourceLineNo">1761</span>    final static int MIN_DELAY_TIME = 0; // millisec<a name="line.1761"></a>
-<span class="sourceLineNo">1762</span>    public PeriodicMemStoreFlusher(int cacheFlushInterval, final HRegionServer server) {<a name="line.1762"></a>
-<span class="sourceLineNo">1763</span>      super("MemstoreFlusherChore", server, cacheFlushInterval);<a name="line.1763"></a>
-<span class="sourceLineNo">1764</span>      this.server = server;<a name="line.1764"></a>
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-<span class="sourceLineNo">1767</span>    @Override<a name="line.1767"></a>
-<span class="sourceLineNo">1768</span>    protected void chore() {<a name="line.1768"></a>
-<span class="sourceLineNo">1769</span>      final StringBuilder whyFlush = new StringBuilder();<a name="line.1769"></a>
-<span class="sourceLineNo">1770</span>      for (HRegion r : this.server.onlineRegions.values()) {<a name="line.1770"></a>
-<span class="sourceLineNo">1771</span>        if (r == null) continue;<a name="line.1771"></a>
-<span class="sourceLineNo">1772</span>        if (r.shouldFlush(whyFlush)) {<a name="line.1772"></a>
-<span class="sourceLineNo">1773</span>          FlushRequester requester = server.getFlushRequester();<a name="line.1773"></a>
-<span class="sourceLineNo">1774</span>          if (requester != null) {<a name="line.1774"></a>
-<span class="sourceLineNo">1775</span>            long randomDelay = (long) RandomUtils.nextInt(0, RANGE_OF_DELAY) + MIN_DELAY_TIME;<a name="line.1775"></a>
-<span class="sourceLineNo">1776</span>            LOG.info(getName() + " requesting flush of " +<a name="line.1776"></a>
-<span class="sourceLineNo">1777</span>              r.getRegionInfo().getRegionNameAsString() + " because " +<a name="line.1777"></a>
-<span class="sourceLineNo">1778</span>              whyFlush.toString() +<a name="line.1778"></a>
-<span class="sourceLineNo">1779</span>              " after random delay " + randomDelay + "ms");<a name="line.1779"></a>
-<span class="sourceLineNo">1780</span>            //Throttle the flushes by putting a delay. If we don't throttle, and there<a name="line.1780"></a>
-<span class="sourceLineNo">1781</span>            //is a balanced write-load on the regions in a table, we might end up<a name="line.1781"></a>
-<span class="sourceLineNo">1782</span>            //overwhelming the filesystem with too many flushes at once.<a name="line.1782"></a>
-<span class="sourceLineNo">1783</span>            requester.requestDelayedFlush(r, randomDelay, false);<a name="line.1783"></a>
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-<span class="sourceLineNo">1790</span>  /**<a name="line.1790"></a>
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-<span class="sourceLineNo">1792</span>   * completed (setting up filesystem, starting executorService threads, etc.). This<a name="line.1792"></a>
-<span class="sourceLineNo">1793</span>   * method is designed mostly to be useful in tests.<a name="line.1793"></a>
-<span class="sourceLineNo">1794</span>   *<a name="line.1794"></a>
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-<span class="sourceLineNo">1801</span>  /**<a name="line.1801"></a>
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-<span class="sourceLineNo">1807</span>      (!LoadBalancer.isTablesOnMaster(conf) || LoadBalancer.isSystemTablesOnlyOnMaster(conf));<a name="line.1807"></a>
-<span class="sourceLineNo">1808</span>    WALFactory factory =<a name="line.1808"></a>
-<span class="sourceLineNo">1809</span>        new WALFactory(conf, serverName.toString(), !isMasterNoTableOrSystemTableOnly);<a name="line.1809"></a>
-<span class="sourceLineNo">1810</span>    if (!isMasterNoTableOrSystemTableOnly) {<a name="line.1810"></a>
-<span class="sourceLineNo">1811</span>      // TODO Replication make assumptions here based on the default filesystem impl<a name="line.1811"></a>
-<span class="sourceLineNo">1812</span>      Path oldLogDir = new Path(walRootDir, HConstants.HREGION_OLDLOGDIR_NAME);<a name="line.1812"></a>
-<span class="sourceLineNo">1813</span>      String logName = AbstractFSWALProvider.getWALDirectoryName(this.serverName.toString());<a name="line.1813"></a>
-<span class="sourceLineNo">1814</span><a name="line.1814"></a>
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-<span class="sourceLineNo">1816</span>      LOG.debug("logDir={}", logDir);<a name="line.1816"></a>
-<span class="sourceLineNo">1817</span>      if (this.walFs.exists(logDir)) {<a name="line.1817"></a>
-<span class="sourceLineNo">1818</span>        throw new RegionServerRunningException(<a name="line.1818"></a>
-<span class="sourceLineNo">1819</span>            "Region server has already created directory at " + this.serverName.toString());<a name="line.1819"></a>
-<span class="sourceLineNo">1820</span>      }<a name="line.1820"></a>
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-<span class="sourceLineNo">1822</span>      // region servers.<a name="line.1822"></a>
-<span class="sourceLineNo">1823</span>      if (!this.walFs.mkdirs(logDir)) {<a name="line.1823"></a>
-<span class="sourceLineNo">1824</span>        throw new IOException("Can not create wal directory " + logDir);<a name="line.1824"></a>
+<span class="sourceLineNo">1762</span><a name="line.1762"></a>
+<span class="sourceLineNo">1763</span>    final int rangeOfDelay;<a name="line.1763"></a>
+<span class="sourceLineNo">1764</span>    public PeriodicMemStoreFlusher(int cacheFlushInterval, final HRegionServer server) {<a name="line.1764"></a>
+<span class="sourceLineNo">1765</span>      super("MemstoreFlusherChore", server, cacheFlushInterval);<a name="line.1765"></a>
+<span class="sourceLineNo">1766</span>      this.server = server;<a name="line.1766"></a>
+<span class="sourceLineNo">1767</span><a name="line.1767"></a>
+<span class="sourceLineNo">1768</span>      this.rangeOfDelay = this.server.conf.getInt("hbase.regionserver.periodicmemstoreflusher.rangeofdelayseconds",<a name="line.1768"></a>
+<span class="sourceLineNo">1769</span>              RANGE_OF_DELAY)*1000;<a name="line.1769"></a>
+<span class="sourceLineNo">1770</span>    }<a name="line.1770"></a>
+<span class="sourceLineNo">1771</span><a name="line.1771"></a>
+<span class="sourceLineNo">1772</span>    @Override<a name="line.1772"></a>
+<span class="sourceLineNo">1773</span>    protected void chore() {<a name="line.1773"></a>
+<span class="sourceLineNo">1774</span>      final StringBuilder whyFlush = new StringBuilder();<a name="line.1774"></a>
+<span class="sourceLineNo">1775</span>      for (HRegion r : this.server.onlineRegions.values()) {<a name="line.1775"></a>
+<span class="sourceLineNo">1776</span>        if (r == null) continue;<a name="line.1776"></a>
+<span class="sourceLineNo">1777</span>        if (r.shouldFlush(whyFlush)) {<a name="line.1777"></a>
+<span class="sourceLineNo">1778</span>          FlushRequester requester = server.getFlushRequester();<a name="line.1778"></a>
+<span class="sourceLineNo">1779</span>          if (requester != null) {<a name="line.1779"></a>
+<span class="sourceLineNo">1780</span>            long randomDelay = (long) RandomUtils.nextInt(0, rangeOfDelay) + MIN_DELAY_TIME;<a name="line.1780"></a>
+<span class="sourceLineNo">1781</span>            //Throttle the flushes by putting a delay. If we don't throttle, and there<a name="line.1781"></a>
+<span class="sourceLineNo">1782</span>            //is a balanced write-load on the regions in a table, we might end up<a name="line.1782"></a>
+<span class="sourceLineNo">1783</span>            //overwhelming the filesystem with too many flushes at once.<a name="line.1783"></a>
+<span class="sourceLineNo">1784</span>            if (requester.requestDelayedFlush(r, randomDelay, false)) {<a name="line.1784"></a>
+<span class="sourceLineNo">1785</span>              LOG.info("{} requesting flush of {} because {} after random delay {} ms",<a name="line.1785"></a>
+<span class="sourceLineNo">1786</span>                  getName(), r.getRegionInfo().getRegionNameAsString(),  whyFlush.toString(),<a name="line.1786"></a>
+<span class="sourceLineNo">1787</span>                  randomDelay);<a name="line.1787"></a>
+<span class="sourceLineNo">1788</span>            }<a name="line.1788"></a>
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+<span class="sourceLineNo">1794</span><a name="line.1794"></a>
+<span class="sourceLineNo">1795</span>  /**<a name="line.1795"></a>
+<span class="sourceLineNo">1796</span>   * Report the status of the server. A server is online once all the startup is<a name="line.1796"></a>
+<span class="sourceLineNo">1797</span>   * completed (setting up filesystem, starting executorService threads, etc.). This<a name="line.1797"></a>
+<span class="sourceLineNo">1798</span>   * method is designed mostly to be useful in tests.<a name="line.1798"></a>
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+<span class="sourceLineNo">1801</span>   */<a name="line.1801"></a>
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+<span class="sourceLineNo">1805</span><a name="line.1805"></a>
+<span class="sourceLineNo">1806</span>  /**<a name="line.1806"></a>
+<span class="sourceLineNo">1807</span>   * Setup WAL log and replication if enabled. Replication setup is done in here because it wants to<a name="line.1807"></a>
+<span class="sourceLineNo">1808</span>   * be hooked up to WAL.<a name="line.1808"></a>
+<span class="sourceLineNo">1809</span>   */<a name="line.1809"></a>
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+<span class="sourceLineNo">1871</span>   * registered with the Master.<a name="line.1871"></a>
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+<span class="sourceLineNo">1904</span>    // 2 mins so that compacted files can be archived before the TTLCleaner runs<a name="line.1904"></a>
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 <span class="sourceLineNo">1954</span><a name="line.1954"></a>
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