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Posted to commits@hbase.apache.org by gi...@apache.org on 2018/09/10 14:53:20 UTC
[30/40] hbase-site git commit: Published site at
2aae247e3f8f8a393b403a82593bdc3a1ba81193.
http://git-wip-us.apache.org/repos/asf/hbase-site/blob/80652933/devapidocs/src-html/org/apache/hadoop/hbase/master/assignment/RegionStates.RegionStateStampComparator.html
----------------------------------------------------------------------
diff --git a/devapidocs/src-html/org/apache/hadoop/hbase/master/assignment/RegionStates.RegionStateStampComparator.html b/devapidocs/src-html/org/apache/hadoop/hbase/master/assignment/RegionStates.RegionStateStampComparator.html
index c5b8dbd..314b4e9 100644
--- a/devapidocs/src-html/org/apache/hadoop/hbase/master/assignment/RegionStates.RegionStateStampComparator.html
+++ b/devapidocs/src-html/org/apache/hadoop/hbase/master/assignment/RegionStates.RegionStateStampComparator.html
@@ -474,323 +474,337 @@
<span class="sourceLineNo">466</span> public Map<ServerName, List<RegionInfo>> getSnapShotOfAssignment(<a name="line.466"></a>
<span class="sourceLineNo">467</span> final Collection<RegionInfo> regions) {<a name="line.467"></a>
<span class="sourceLineNo">468</span> final Map<ServerName, List<RegionInfo>> result = new HashMap<ServerName, List<RegionInfo>>();<a name="line.468"></a>
-<span class="sourceLineNo">469</span> for (RegionInfo hri: regions) {<a name="line.469"></a>
-<span class="sourceLineNo">470</span> final RegionStateNode node = getRegionStateNode(hri);<a name="line.470"></a>
-<span class="sourceLineNo">471</span> if (node == null) continue;<a name="line.471"></a>
-<span class="sourceLineNo">472</span><a name="line.472"></a>
-<span class="sourceLineNo">473</span> // TODO: State.OPEN<a name="line.473"></a>
-<span class="sourceLineNo">474</span> final ServerName serverName = node.getRegionLocation();<a name="line.474"></a>
-<span class="sourceLineNo">475</span> if (serverName == null) continue;<a name="line.475"></a>
-<span class="sourceLineNo">476</span><a name="line.476"></a>
-<span class="sourceLineNo">477</span> List<RegionInfo> serverRegions = result.get(serverName);<a name="line.477"></a>
-<span class="sourceLineNo">478</span> if (serverRegions == null) {<a name="line.478"></a>
-<span class="sourceLineNo">479</span> serverRegions = new ArrayList<RegionInfo>();<a name="line.479"></a>
-<span class="sourceLineNo">480</span> result.put(serverName, serverRegions);<a name="line.480"></a>
-<span class="sourceLineNo">481</span> }<a name="line.481"></a>
-<span class="sourceLineNo">482</span><a name="line.482"></a>
-<span class="sourceLineNo">483</span> serverRegions.add(node.getRegionInfo());<a name="line.483"></a>
+<span class="sourceLineNo">469</span> if (regions != null) {<a name="line.469"></a>
+<span class="sourceLineNo">470</span> for (RegionInfo hri : regions) {<a name="line.470"></a>
+<span class="sourceLineNo">471</span> final RegionStateNode node = getRegionStateNode(hri);<a name="line.471"></a>
+<span class="sourceLineNo">472</span> if (node == null) {<a name="line.472"></a>
+<span class="sourceLineNo">473</span> continue;<a name="line.473"></a>
+<span class="sourceLineNo">474</span> }<a name="line.474"></a>
+<span class="sourceLineNo">475</span> createSnapshot(node, result);<a name="line.475"></a>
+<span class="sourceLineNo">476</span> }<a name="line.476"></a>
+<span class="sourceLineNo">477</span> } else {<a name="line.477"></a>
+<span class="sourceLineNo">478</span> for (RegionStateNode node : regionsMap.values()) {<a name="line.478"></a>
+<span class="sourceLineNo">479</span> if (node == null) {<a name="line.479"></a>
+<span class="sourceLineNo">480</span> continue;<a name="line.480"></a>
+<span class="sourceLineNo">481</span> }<a name="line.481"></a>
+<span class="sourceLineNo">482</span> createSnapshot(node, result);<a name="line.482"></a>
+<span class="sourceLineNo">483</span> }<a name="line.483"></a>
<span class="sourceLineNo">484</span> }<a name="line.484"></a>
<span class="sourceLineNo">485</span> return result;<a name="line.485"></a>
<span class="sourceLineNo">486</span> }<a name="line.486"></a>
<span class="sourceLineNo">487</span><a name="line.487"></a>
-<span class="sourceLineNo">488</span> public Map<RegionInfo, ServerName> getRegionAssignments() {<a name="line.488"></a>
-<span class="sourceLineNo">489</span> final HashMap<RegionInfo, ServerName> assignments = new HashMap<RegionInfo, ServerName>();<a name="line.489"></a>
-<span class="sourceLineNo">490</span> for (RegionStateNode node: regionsMap.values()) {<a name="line.490"></a>
-<span class="sourceLineNo">491</span> assignments.put(node.getRegionInfo(), node.getRegionLocation());<a name="line.491"></a>
+<span class="sourceLineNo">488</span> private void createSnapshot(RegionStateNode node, Map<ServerName, List<RegionInfo>> result) {<a name="line.488"></a>
+<span class="sourceLineNo">489</span> final ServerName serverName = node.getRegionLocation();<a name="line.489"></a>
+<span class="sourceLineNo">490</span> if (serverName == null) {<a name="line.490"></a>
+<span class="sourceLineNo">491</span> return;<a name="line.491"></a>
<span class="sourceLineNo">492</span> }<a name="line.492"></a>
-<span class="sourceLineNo">493</span> return assignments;<a name="line.493"></a>
-<span class="sourceLineNo">494</span> }<a name="line.494"></a>
-<span class="sourceLineNo">495</span><a name="line.495"></a>
-<span class="sourceLineNo">496</span> public Map<RegionState.State, List<RegionInfo>> getRegionByStateOfTable(TableName tableName) {<a name="line.496"></a>
-<span class="sourceLineNo">497</span> final State[] states = State.values();<a name="line.497"></a>
-<span class="sourceLineNo">498</span> final Map<RegionState.State, List<RegionInfo>> tableRegions =<a name="line.498"></a>
-<span class="sourceLineNo">499</span> new HashMap<State, List<RegionInfo>>(states.length);<a name="line.499"></a>
-<span class="sourceLineNo">500</span> for (int i = 0; i < states.length; ++i) {<a name="line.500"></a>
-<span class="sourceLineNo">501</span> tableRegions.put(states[i], new ArrayList<RegionInfo>());<a name="line.501"></a>
-<span class="sourceLineNo">502</span> }<a name="line.502"></a>
-<span class="sourceLineNo">503</span><a name="line.503"></a>
+<span class="sourceLineNo">493</span><a name="line.493"></a>
+<span class="sourceLineNo">494</span> List<RegionInfo> serverRegions = result.get(serverName);<a name="line.494"></a>
+<span class="sourceLineNo">495</span> if (serverRegions == null) {<a name="line.495"></a>
+<span class="sourceLineNo">496</span> serverRegions = new ArrayList<RegionInfo>();<a name="line.496"></a>
+<span class="sourceLineNo">497</span> result.put(serverName, serverRegions);<a name="line.497"></a>
+<span class="sourceLineNo">498</span> }<a name="line.498"></a>
+<span class="sourceLineNo">499</span> serverRegions.add(node.getRegionInfo());<a name="line.499"></a>
+<span class="sourceLineNo">500</span> }<a name="line.500"></a>
+<span class="sourceLineNo">501</span><a name="line.501"></a>
+<span class="sourceLineNo">502</span> public Map<RegionInfo, ServerName> getRegionAssignments() {<a name="line.502"></a>
+<span class="sourceLineNo">503</span> final HashMap<RegionInfo, ServerName> assignments = new HashMap<RegionInfo, ServerName>();<a name="line.503"></a>
<span class="sourceLineNo">504</span> for (RegionStateNode node: regionsMap.values()) {<a name="line.504"></a>
-<span class="sourceLineNo">505</span> if (node.getTable().equals(tableName)) {<a name="line.505"></a>
-<span class="sourceLineNo">506</span> tableRegions.get(node.getState()).add(node.getRegionInfo());<a name="line.506"></a>
-<span class="sourceLineNo">507</span> }<a name="line.507"></a>
-<span class="sourceLineNo">508</span> }<a name="line.508"></a>
-<span class="sourceLineNo">509</span> return tableRegions;<a name="line.509"></a>
-<span class="sourceLineNo">510</span> }<a name="line.510"></a>
-<span class="sourceLineNo">511</span><a name="line.511"></a>
-<span class="sourceLineNo">512</span> public ServerName getRegionServerOfRegion(RegionInfo regionInfo) {<a name="line.512"></a>
-<span class="sourceLineNo">513</span> RegionStateNode regionNode = getRegionStateNode(regionInfo);<a name="line.513"></a>
-<span class="sourceLineNo">514</span> if (regionNode != null) {<a name="line.514"></a>
-<span class="sourceLineNo">515</span> regionNode.lock();<a name="line.515"></a>
-<span class="sourceLineNo">516</span> try {<a name="line.516"></a>
-<span class="sourceLineNo">517</span> ServerName server = regionNode.getRegionLocation();<a name="line.517"></a>
-<span class="sourceLineNo">518</span> return server != null ? server : regionNode.getLastHost();<a name="line.518"></a>
-<span class="sourceLineNo">519</span> } finally {<a name="line.519"></a>
-<span class="sourceLineNo">520</span> regionNode.unlock();<a name="line.520"></a>
+<span class="sourceLineNo">505</span> assignments.put(node.getRegionInfo(), node.getRegionLocation());<a name="line.505"></a>
+<span class="sourceLineNo">506</span> }<a name="line.506"></a>
+<span class="sourceLineNo">507</span> return assignments;<a name="line.507"></a>
+<span class="sourceLineNo">508</span> }<a name="line.508"></a>
+<span class="sourceLineNo">509</span><a name="line.509"></a>
+<span class="sourceLineNo">510</span> public Map<RegionState.State, List<RegionInfo>> getRegionByStateOfTable(TableName tableName) {<a name="line.510"></a>
+<span class="sourceLineNo">511</span> final State[] states = State.values();<a name="line.511"></a>
+<span class="sourceLineNo">512</span> final Map<RegionState.State, List<RegionInfo>> tableRegions =<a name="line.512"></a>
+<span class="sourceLineNo">513</span> new HashMap<State, List<RegionInfo>>(states.length);<a name="line.513"></a>
+<span class="sourceLineNo">514</span> for (int i = 0; i < states.length; ++i) {<a name="line.514"></a>
+<span class="sourceLineNo">515</span> tableRegions.put(states[i], new ArrayList<RegionInfo>());<a name="line.515"></a>
+<span class="sourceLineNo">516</span> }<a name="line.516"></a>
+<span class="sourceLineNo">517</span><a name="line.517"></a>
+<span class="sourceLineNo">518</span> for (RegionStateNode node: regionsMap.values()) {<a name="line.518"></a>
+<span class="sourceLineNo">519</span> if (node.getTable().equals(tableName)) {<a name="line.519"></a>
+<span class="sourceLineNo">520</span> tableRegions.get(node.getState()).add(node.getRegionInfo());<a name="line.520"></a>
<span class="sourceLineNo">521</span> }<a name="line.521"></a>
<span class="sourceLineNo">522</span> }<a name="line.522"></a>
-<span class="sourceLineNo">523</span> return null;<a name="line.523"></a>
+<span class="sourceLineNo">523</span> return tableRegions;<a name="line.523"></a>
<span class="sourceLineNo">524</span> }<a name="line.524"></a>
<span class="sourceLineNo">525</span><a name="line.525"></a>
-<span class="sourceLineNo">526</span> /**<a name="line.526"></a>
-<span class="sourceLineNo">527</span> * This is an EXPENSIVE clone. Cloning though is the safest thing to do.<a name="line.527"></a>
-<span class="sourceLineNo">528</span> * Can't let out original since it can change and at least the load balancer<a name="line.528"></a>
-<span class="sourceLineNo">529</span> * wants to iterate this exported list. We need to synchronize on regions<a name="line.529"></a>
-<span class="sourceLineNo">530</span> * since all access to this.servers is under a lock on this.regions.<a name="line.530"></a>
-<span class="sourceLineNo">531</span> * @param forceByCluster a flag to force to aggregate the server-load to the cluster level<a name="line.531"></a>
-<span class="sourceLineNo">532</span> * @return A clone of current assignments by table.<a name="line.532"></a>
-<span class="sourceLineNo">533</span> */<a name="line.533"></a>
-<span class="sourceLineNo">534</span> public Map<TableName, Map<ServerName, List<RegionInfo>>> getAssignmentsByTable(<a name="line.534"></a>
-<span class="sourceLineNo">535</span> final boolean forceByCluster) {<a name="line.535"></a>
-<span class="sourceLineNo">536</span> if (!forceByCluster) return getAssignmentsByTable();<a name="line.536"></a>
-<span class="sourceLineNo">537</span><a name="line.537"></a>
-<span class="sourceLineNo">538</span> final HashMap<ServerName, List<RegionInfo>> ensemble =<a name="line.538"></a>
-<span class="sourceLineNo">539</span> new HashMap<ServerName, List<RegionInfo>>(serverMap.size());<a name="line.539"></a>
-<span class="sourceLineNo">540</span> for (ServerStateNode serverNode: serverMap.values()) {<a name="line.540"></a>
-<span class="sourceLineNo">541</span> ensemble.put(serverNode.getServerName(), serverNode.getRegionInfoList());<a name="line.541"></a>
-<span class="sourceLineNo">542</span> }<a name="line.542"></a>
-<span class="sourceLineNo">543</span><a name="line.543"></a>
-<span class="sourceLineNo">544</span> // TODO: can we use Collections.singletonMap(HConstants.ENSEMBLE_TABLE_NAME, ensemble)?<a name="line.544"></a>
-<span class="sourceLineNo">545</span> final Map<TableName, Map<ServerName, List<RegionInfo>>> result =<a name="line.545"></a>
-<span class="sourceLineNo">546</span> new HashMap<TableName, Map<ServerName, List<RegionInfo>>>(1);<a name="line.546"></a>
-<span class="sourceLineNo">547</span> result.put(HConstants.ENSEMBLE_TABLE_NAME, ensemble);<a name="line.547"></a>
-<span class="sourceLineNo">548</span> return result;<a name="line.548"></a>
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-<span class="sourceLineNo">550</span><a name="line.550"></a>
-<span class="sourceLineNo">551</span> public Map<TableName, Map<ServerName, List<RegionInfo>>> getAssignmentsByTable() {<a name="line.551"></a>
-<span class="sourceLineNo">552</span> final Map<TableName, Map<ServerName, List<RegionInfo>>> result = new HashMap<>();<a name="line.552"></a>
-<span class="sourceLineNo">553</span> for (RegionStateNode node: regionsMap.values()) {<a name="line.553"></a>
-<span class="sourceLineNo">554</span> Map<ServerName, List<RegionInfo>> tableResult = result.get(node.getTable());<a name="line.554"></a>
-<span class="sourceLineNo">555</span> if (tableResult == null) {<a name="line.555"></a>
-<span class="sourceLineNo">556</span> tableResult = new HashMap<ServerName, List<RegionInfo>>();<a name="line.556"></a>
-<span class="sourceLineNo">557</span> result.put(node.getTable(), tableResult);<a name="line.557"></a>
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-<span class="sourceLineNo">559</span><a name="line.559"></a>
-<span class="sourceLineNo">560</span> final ServerName serverName = node.getRegionLocation();<a name="line.560"></a>
-<span class="sourceLineNo">561</span> if (serverName == null) {<a name="line.561"></a>
-<span class="sourceLineNo">562</span> LOG.info("Skipping, no server for " + node);<a name="line.562"></a>
-<span class="sourceLineNo">563</span> continue;<a name="line.563"></a>
-<span class="sourceLineNo">564</span> }<a name="line.564"></a>
-<span class="sourceLineNo">565</span> List<RegionInfo> serverResult = tableResult.get(serverName);<a name="line.565"></a>
-<span class="sourceLineNo">566</span> if (serverResult == null) {<a name="line.566"></a>
-<span class="sourceLineNo">567</span> serverResult = new ArrayList<RegionInfo>();<a name="line.567"></a>
-<span class="sourceLineNo">568</span> tableResult.put(serverName, serverResult);<a name="line.568"></a>
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-<span class="sourceLineNo">571</span> serverResult.add(node.getRegionInfo());<a name="line.571"></a>
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-<span class="sourceLineNo">573</span> // Add online servers with no assignment for the table.<a name="line.573"></a>
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-<span class="sourceLineNo">575</span> for (ServerName svr : serverMap.keySet()) {<a name="line.575"></a>
-<span class="sourceLineNo">576</span> if (!table.containsKey(svr)) {<a name="line.576"></a>
-<span class="sourceLineNo">577</span> table.put(svr, new ArrayList<RegionInfo>());<a name="line.577"></a>
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-<span class="sourceLineNo">584</span> // ==========================================================================<a name="line.584"></a>
-<span class="sourceLineNo">585</span> // Region in transition helpers<a name="line.585"></a>
-<span class="sourceLineNo">586</span> // ==========================================================================<a name="line.586"></a>
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+<span class="sourceLineNo">540</span> /**<a name="line.540"></a>
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+<span class="sourceLineNo">557</span><a name="line.557"></a>
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