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Posted to commits@hbase.apache.org by gi...@apache.org on 2018/03/05 14:53:39 UTC
[06/51] [partial] hbase-site git commit: Published site at
b7b86839250bf9b295ebc1948826f43a88736d6c.
http://git-wip-us.apache.org/repos/asf/hbase-site/blob/6b94a2f2/devapidocs/src-html/org/apache/hadoop/hbase/master/assignment/AssignmentManager.RegionInTransitionChore.html
----------------------------------------------------------------------
diff --git a/devapidocs/src-html/org/apache/hadoop/hbase/master/assignment/AssignmentManager.RegionInTransitionChore.html b/devapidocs/src-html/org/apache/hadoop/hbase/master/assignment/AssignmentManager.RegionInTransitionChore.html
index 3563b1c..0cc71bf 100644
--- a/devapidocs/src-html/org/apache/hadoop/hbase/master/assignment/AssignmentManager.RegionInTransitionChore.html
+++ b/devapidocs/src-html/org/apache/hadoop/hbase/master/assignment/AssignmentManager.RegionInTransitionChore.html
@@ -1577,387 +1577,386 @@
<span class="sourceLineNo">1569</span> }<a name="line.1569"></a>
<span class="sourceLineNo">1570</span><a name="line.1570"></a>
<span class="sourceLineNo">1571</span> public void markRegionAsSplit(final RegionInfo parent, final ServerName serverName,<a name="line.1571"></a>
-<span class="sourceLineNo">1572</span> final RegionInfo daughterA, final RegionInfo daughterB)<a name="line.1572"></a>
-<span class="sourceLineNo">1573</span> throws IOException {<a name="line.1573"></a>
-<span class="sourceLineNo">1574</span> // Update hbase:meta. Parent will be marked offline and split up in hbase:meta.<a name="line.1574"></a>
-<span class="sourceLineNo">1575</span> // The parent stays in regionStates until cleared when removed by CatalogJanitor.<a name="line.1575"></a>
-<span class="sourceLineNo">1576</span> // Update its state in regionStates to it shows as offline and split when read<a name="line.1576"></a>
-<span class="sourceLineNo">1577</span> // later figuring what regions are in a table and what are not: see<a name="line.1577"></a>
-<span class="sourceLineNo">1578</span> // regionStates#getRegionsOfTable<a name="line.1578"></a>
-<span class="sourceLineNo">1579</span> final RegionStateNode node = regionStates.getOrCreateRegionStateNode(parent);<a name="line.1579"></a>
-<span class="sourceLineNo">1580</span> node.setState(State.SPLIT);<a name="line.1580"></a>
-<span class="sourceLineNo">1581</span> final RegionStateNode nodeA = regionStates.getOrCreateRegionStateNode(daughterA);<a name="line.1581"></a>
-<span class="sourceLineNo">1582</span> nodeA.setState(State.SPLITTING_NEW);<a name="line.1582"></a>
-<span class="sourceLineNo">1583</span> final RegionStateNode nodeB = regionStates.getOrCreateRegionStateNode(daughterB);<a name="line.1583"></a>
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-<span class="sourceLineNo">1586</span> regionStateStore.splitRegion(parent, daughterA, daughterB, serverName);<a name="line.1586"></a>
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-<span class="sourceLineNo">1588</span> List<ServerName> onlineServers = this.master.getServerManager().getOnlineServersList();<a name="line.1588"></a>
-<span class="sourceLineNo">1589</span> ((FavoredNodesPromoter)getBalancer()).<a name="line.1589"></a>
-<span class="sourceLineNo">1590</span> generateFavoredNodesForDaughter(onlineServers, parent, daughterA, daughterB);<a name="line.1590"></a>
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-<span class="sourceLineNo">1593</span><a name="line.1593"></a>
-<span class="sourceLineNo">1594</span> /**<a name="line.1594"></a>
-<span class="sourceLineNo">1595</span> * When called here, the merge has happened. The two merged regions have been<a name="line.1595"></a>
-<span class="sourceLineNo">1596</span> * unassigned and the above markRegionClosed has been called on each so they have been<a name="line.1596"></a>
-<span class="sourceLineNo">1597</span> * disassociated from a hosting Server. The merged region will be open after this call. The<a name="line.1597"></a>
-<span class="sourceLineNo">1598</span> * merged regions are removed from hbase:meta below> Later they are deleted from the filesystem<a name="line.1598"></a>
-<span class="sourceLineNo">1599</span> * by the catalog janitor running against hbase:meta. It notices when the merged region no<a name="line.1599"></a>
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-<span class="sourceLineNo">1631</span> /**<a name="line.1631"></a>
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-<span class="sourceLineNo">1654</span> // Get Server Thread name. Sometimes the Server is mocked so may not implement HasThread.<a name="line.1654"></a>
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-<span class="sourceLineNo">1769</span> LOG.warn("Filtering old server versions and the excluded produced an empty set; " +<a name="line.1769"></a>
-<span class="sourceLineNo">1770</span> "instead considering all candidate servers!");<a name="line.1770"></a>
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+<span class="sourceLineNo">1865</span> // move or system region assign. The RegionServerTracker keeps list of online Servers with<a name="line.1865"></a>
+<span class="sourceLineNo">1866</span> // RegionServerInfo that includes Version.<a name="line.1866"></a>
+<span class="sourceLineNo">1867</span> List<Pair<ServerName, String>> serverList = master.getServerManager().getOnlineServersList()<a name="line.1867"></a>
+<span class="sourceLineNo">1868</span> .stream()<a name="line.1868"></a>
+<span class="sourceLineNo">1869</span> .map((s)->new Pair<>(s, master.getRegionServerVersion(s)))<a name="line.1869"></a>
+<span class="sourceLineNo">1870</span> .collect(Collectors.toList());<a name="line.1870"></a>
+<span class="sourceLineNo">1871</span> if (serverList.isEmpty()) {<a name="line.1871"></a>
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+<span class="sourceLineNo">1874</span> String highestVersion = Collections.max(serverList,<a name="line.1874"></a>
+<span class="sourceLineNo">1875</span> (o1, o2) -> VersionInfo.compareVersion(o1.getSecond(), o2.getSecond())).getSecond();<a name="line.1875"></a>
+<span class="sourceLineNo">1876</span> return serverList.stream()<a name="line.1876"></a>
+<span class="sourceLineNo">1877</span> .filter((p)->!p.getSecond().equals(highestVersion))<a name="line.1877"></a>
+<span class="sourceLineNo">1878</span> .map(Pair::getFirst)<a name="line.1878"></a>
+<span class="sourceLineNo">1879</span> .collect(Collectors.toList());<a name="line.1879"></a>
+<span class="sourceLineNo">1880</span> }<a name="line.1880"></a>
+<span class="sourceLineNo">1881</span><a name="line.1881"></a>
+<span class="sourceLineNo">1882</span> // ============================================================================================<a name="line.1882"></a>
+<span class="sourceLineNo">1883</span> // Server Helpers<a name="line.1883"></a>
+<span class="sourceLineNo">1884</span> // ============================================================================================<a name="line.1884"></a>
+<span class="sourceLineNo">1885</span> @Override<a name="line.1885"></a>
+<span class="sourceLineNo">1886</span> public void serverAdded(final ServerName serverName) {<a name="line.1886"></a>
+<span class="sourceLineNo">1887</span> }<a name="line.1887"></a>
+<span class="sourceLineNo">1888</span><a name="line.1888"></a>
+<span class="sourceLineNo">1889</span> @Override<a name="line.1889"></a>
+<span class="sourceLineNo">1890</span> public void serverRemoved(final ServerName serverName) {<a name="line.1890"></a>
+<span class="sourceLineNo">1891</span> final ServerStateNode serverNode = regionStates.getServerNode(serverName);<a name="line.1891"></a>
+<span class="sourceLineNo">1892</span> if (serverNode == null) return;<a name="line.1892"></a>
+<span class="sourceLineNo">1893</span><a name="line.1893"></a>
+<span class="sourceLineNo">1894</span> // just in case, wake procedures waiting for this server report<a name="line.1894"></a>
+<span class="sourceLineNo">1895</span> wakeServerReportEvent(serverNode);<a name="line.1895"></a>
+<span class="sourceLineNo">1896</span> }<a name="line.1896"></a>
+<span class="sourceLineNo">1897</span><a name="line.1897"></a>
+<span class="sourceLineNo">1898</span> public int getServerVersion(final ServerName serverName) {<a name="line.1898"></a>
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+<span class="sourceLineNo">1901</span> }<a name="line.1901"></a>
+<span class="sourceLineNo">1902</span><a name="line.1902"></a>
+<span class="sourceLineNo">1903</span> public void killRegionServer(final ServerName serverName) {<a name="line.1903"></a>
+<span class="sourceLineNo">1904</span> final ServerStateNode serverNode = regionStates.getServerNode(serverName);<a name="line.1904"></a>
+<span class="sourceLineNo">1905</span> killRegionServer(serverNode);<a name="line.1905"></a>
+<span class="sourceLineNo">1906</span> }<a name="line.1906"></a>
+<span class="sourceLineNo">1907</span><a name="line.1907"></a>
+<span class="sourceLineNo">1908</span> public void killRegionServer(final ServerStateNode serverNode) {<a name="line.1908"></a>
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+<span class="sourceLineNo">1910</span> for (RegionStateNode regionNode: serverNode.getRegions()) {<a name="line.1910"></a>
+<span class="sourceLineNo">1911</span> regionNode.offline();<a name="line.1911"></a>
+<span class="sourceLineNo">1912</span> }*/<a name="line.1912"></a>
+<span class="sourceLineNo">1913</span> master.getServerManager().expireServer(serverNode.getServerName());<a name="line.1913"></a>
+<span class="sourceLineNo">1914</span> }<a name="line.1914"></a>
+<span class="sourceLineNo">1915</span><a name="line.1915"></a>
+<span class="sourceLineNo">1916</span> /**<a name="line.1916"></a>
+<span class="sourceLineNo">1917</span> * Handle RIT of meta region against crashed server.<a name="line.1917"></a>
+<span class="sourceLineNo">1918</span> * Only used when ServerCrashProcedure is not enabled.<a name="line.1918"></a>
+<span class="sourceLineNo">1919</span> * See handleRIT in ServerCrashProcedure for similar function.<a name="line.1919"></a>
+<span class="sourceLineNo">1920</span> *<a name="line.1920"></a>
+<span class="sourceLineNo">1921</span> * @param serverName Server that has already crashed<a name="line.1921"></a>
+<span class="sourceLineNo">1922</span> */<a name="line.1922"></a>
+<span class="sourceLineNo">1923</span> public void handleMetaRITOnCrashedServer(ServerName serverName) {<a name="line.1923"></a>
+<span class="sourceLineNo">1924</span> RegionInfo hri = RegionReplicaUtil<a name="line.1924"></a>
+<span class="sourceLineNo">1925</span> .getRegionInfoForReplica(RegionInfoBuilder.FIRST_META_REGIONINFO,<a name="line.1925"></a>
+<span class="sourceLineNo">1926</span> RegionInfo.DEFAULT_REPLICA_ID);<a name="line.1926"></a>
+<span class="sourceLineNo">1927</span> RegionState regionStateNode = getRegionStates().getRegionState(hri);<a name="line.1927"></a>
+<span class="sourceLineNo">1928</span> if (regionStateNode == null) {<a name="line.1928"></a>
+<span class="sourceLineNo">1929</span> LOG.warn("RegionStateNode is null for " + hri);<a name="line.1929"></a>
+<span class="sourceLineNo">1930</span> return;<a name="line.1930"></a>
+<span class="sourceLineNo">1931</span> }<a name="line.1931"></a>
+<span class="sourceLineNo">1932</span> ServerName rsnServerName = regionStateNode.getServerName();<a name="line.1932"></a>
+<span class="sourceLineNo">1933</span> if (rsnServerName != null && !rsnServerName.equals(serverName)) {<a name="line.1933"></a>
+<span class="sourceLineNo">1934</span> return;<a name="line.1934"></a>
+<span class="sourceLineNo">1935</span> } else if (rsnServerName == null) {<a name="line.1935"></a>
+<span class="sourceLineNo">1936</span> LOG.warn("Empty ServerName in RegionStateNode; proceeding anyways in case latched " +<a name="line.1936"></a>
+<span class="sourceLineNo">1937</span> "RecoverMetaProcedure so meta latch gets cleaned up.");<a name="line.1937"></a>
+<span class="sourceLineNo">1938</span> }<a name="line.1938"></a>
+<span class="sourceLineNo">1939</span> // meta has been assigned to crashed server.<a name="line.1939"></a>
+<span class="sourceLineNo">1940</span> LOG.info("Meta assigned to crashed " + serverName + "; reassigning...");<a name="line.1940"></a>
+<span class="sourceLineNo">1941</span> // Handle failure and wake event<a name="line.1941"></a>
+<span class="sourceLineNo">1942</span> RegionTransitionProcedure rtp = getRegionStates().getRegionTransitionProcedure(hri);<a name="line.1942"></a>
+<span class="sourceLineNo">1943</span> // Do not need to consider for REGION_TRANSITION_QUEUE step<a name="line.1943"></a>
+<span class="sourceLineNo">1944</span> if (rtp != null && rtp.isMeta() &&<a name="line.1944"></a>
+<span class="sourceLineNo">1945</span> rtp.getTransitionState() == RegionTransitionState.REGION_TRANSITION_DISPATCH) {<a name="line.1945"></a>
+<span class="sourceLineNo">1946</span> LOG.debug("Failing " + rtp.toString());<a name="line.1946"></a>
+<span class="sourceLineNo">1947</span> rtp.remoteCallFailed(master.getMasterProcedureExecutor().getEnvironment(), serverName,<a name="line.1947"></a>
+<span class="sourceLineNo">1948</span> new ServerCrashException(rtp.getProcId(), serverName));<a name="line.1948"></a>
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+<span class="sourceLineNo">1950</span> }<a name="line.1950"></a>
+<span class="sourceLineNo">1951</span>}<a name="line.1951"></a>