http://git-wip-us.apache.org/repos/asf/hbase-site/blob/fa1bebf8/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 df4d2d2..20442d4 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 @@ -552,1331 +552,1334 @@ <span class="sourceLineNo">544</span> }<a name="line.544"></a> <span class="sourceLineNo">545</span> }<a name="line.545"></a> <span class="sourceLineNo">546</span><a name="line.546"></a> -<span class="sourceLineNo">547</span> public void assign(RegionInfo regionInfo, ServerName sn) throws IOException {<a name="line.547"></a> -<span class="sourceLineNo">548</span> // TODO: should we use getRegionStateNode?<a name="line.548"></a> -<span class="sourceLineNo">549</span> RegionStateNode regionNode = regionStates.getOrCreateRegionStateNode(regionInfo);<a name="line.549"></a> -<span class="sourceLineNo">550</span> TransitRegionStateProcedure proc;<a name="line.550"></a> -<span class="sourceLineNo">551</span> regionNode.lock();<a name="line.551"></a> -<span class="sourceLineNo">552</span> try {<a name="line.552"></a> -<span class="sourceLineNo">553</span> preTransitCheck(regionNode, STATES_EXPECTED_ON_ASSIGN);<a name="line.553"></a> -<span class="sourceLineNo">554</span> proc = TransitRegionStateProcedure.assign(getProcedureEnvironment(), regionInfo, sn);<a name="line.554"></a> -<span class="sourceLineNo">555</span> regionNode.setProcedure(proc);<a name="line.555"></a> -<span class="sourceLineNo">556</span> } finally {<a name="line.556"></a> -<span class="sourceLineNo">557</span> regionNode.unlock();<a name="line.557"></a> -<span class="sourceLineNo">558</span> }<a name="line.558"></a> -<span class="sourceLineNo">559</span> ProcedureSyncWait.submitAndWaitProcedure(master.getMasterProcedureExecutor(), proc);<a name="line.559"></a> -<span class="sourceLineNo">560</span> }<a name="line.560"></a> -<span class="sourceLineNo">561</span><a name="line.561"></a> -<span class="sourceLineNo">562</span> public void assign(RegionInfo regionInfo) throws IOException {<a name="line.562"></a> -<span class="sourceLineNo">563</span> assign(regionInfo, null);<a name="line.563"></a> -<span class="sourceLineNo">564</span> }<a name="line.564"></a> -<span class="sourceLineNo">565</span><a name="line.565"></a> -<span class="sourceLineNo">566</span> public void unassign(RegionInfo regionInfo) throws IOException {<a name="line.566"></a> -<span class="sourceLineNo">567</span> RegionStateNode regionNode = regionStates.getRegionStateNode(regionInfo);<a name="line.567"></a> -<span class="sourceLineNo">568</span> if (regionNode == null) {<a name="line.568"></a> -<span class="sourceLineNo">569</span> throw new UnknownRegionException("No RegionState found for " + regionInfo.getEncodedName());<a name="line.569"></a> -<span class="sourceLineNo">570</span> }<a name="line.570"></a> -<span class="sourceLineNo">571</span> TransitRegionStateProcedure proc;<a name="line.571"></a> -<span class="sourceLineNo">572</span> regionNode.lock();<a name="line.572"></a> -<span class="sourceLineNo">573</span> try {<a name="line.573"></a> -<span class="sourceLineNo">574</span> preTransitCheck(regionNode, STATES_EXPECTED_ON_UNASSIGN_OR_MOVE);<a name="line.574"></a> -<span class="sourceLineNo">575</span> proc = TransitRegionStateProcedure.unassign(getProcedureEnvironment(), regionInfo);<a name="line.575"></a> -<span class="sourceLineNo">576</span> regionNode.setProcedure(proc);<a name="line.576"></a> -<span class="sourceLineNo">577</span> } finally {<a name="line.577"></a> -<span class="sourceLineNo">578</span> regionNode.unlock();<a name="line.578"></a> -<span class="sourceLineNo">579</span> }<a name="line.579"></a> -<span class="sourceLineNo">580</span> ProcedureSyncWait.submitAndWaitProcedure(master.getMasterProcedureExecutor(), proc);<a name="line.580"></a> -<span class="sourceLineNo">581</span> }<a name="line.581"></a> -<span class="sourceLineNo">582</span><a name="line.582"></a> -<span class="sourceLineNo">583</span> private TransitRegionStateProcedure createMoveRegionProcedure(RegionInfo regionInfo,<a name="line.583"></a> -<span class="sourceLineNo">584</span> ServerName targetServer) throws HBaseIOException {<a name="line.584"></a> -<span class="sourceLineNo">585</span> RegionStateNode regionNode = this.regionStates.getRegionStateNode(regionInfo);<a name="line.585"></a> -<span class="sourceLineNo">586</span> if (regionNode == null) {<a name="line.586"></a> -<span class="sourceLineNo">587</span> throw new UnknownRegionException("No RegionState found for " + regionInfo.getEncodedName());<a name="line.587"></a> -<span class="sourceLineNo">588</span> }<a name="line.588"></a> -<span class="sourceLineNo">589</span> TransitRegionStateProcedure proc;<a name="line.589"></a> -<span class="sourceLineNo">590</span> regionNode.lock();<a name="line.590"></a> -<span class="sourceLineNo">591</span> try {<a name="line.591"></a> -<span class="sourceLineNo">592</span> preTransitCheck(regionNode, STATES_EXPECTED_ON_UNASSIGN_OR_MOVE);<a name="line.592"></a> -<span class="sourceLineNo">593</span> regionNode.checkOnline();<a name="line.593"></a> -<span class="sourceLineNo">594</span> proc = TransitRegionStateProcedure.move(getProcedureEnvironment(), regionInfo, targetServer);<a name="line.594"></a> -<span class="sourceLineNo">595</span> regionNode.setProcedure(proc);<a name="line.595"></a> -<span class="sourceLineNo">596</span> } finally {<a name="line.596"></a> -<span class="sourceLineNo">597</span> regionNode.unlock();<a name="line.597"></a> -<span class="sourceLineNo">598</span> }<a name="line.598"></a> -<span class="sourceLineNo">599</span> return proc;<a name="line.599"></a> -<span class="sourceLineNo">600</span> }<a name="line.600"></a> -<span class="sourceLineNo">601</span><a name="line.601"></a> -<span class="sourceLineNo">602</span> public void move(RegionInfo regionInfo) throws IOException {<a name="line.602"></a> -<span class="sourceLineNo">603</span> TransitRegionStateProcedure proc = createMoveRegionProcedure(regionInfo, null);<a name="line.603"></a> -<span class="sourceLineNo">604</span> ProcedureSyncWait.submitAndWaitProcedure(master.getMasterProcedureExecutor(), proc);<a name="line.604"></a> -<span class="sourceLineNo">605</span> }<a name="line.605"></a> -<span class="sourceLineNo">606</span><a name="line.606"></a> -<span class="sourceLineNo">607</span> public Future<byte[]> moveAsync(RegionPlan regionPlan) throws HBaseIOException {<a name="line.607"></a> -<span class="sourceLineNo">608</span> TransitRegionStateProcedure proc =<a name="line.608"></a> -<span class="sourceLineNo">609</span> createMoveRegionProcedure(regionPlan.getRegionInfo(), regionPlan.getDestination());<a name="line.609"></a> -<span class="sourceLineNo">610</span> return ProcedureSyncWait.submitProcedure(master.getMasterProcedureExecutor(), proc);<a name="line.610"></a> -<span class="sourceLineNo">611</span> }<a name="line.611"></a> -<span class="sourceLineNo">612</span><a name="line.612"></a> -<span class="sourceLineNo">613</span> // ============================================================================================<a name="line.613"></a> -<span class="sourceLineNo">614</span> // RegionTransition procedures helpers<a name="line.614"></a> -<span class="sourceLineNo">615</span> // ============================================================================================<a name="line.615"></a> -<span class="sourceLineNo">616</span><a name="line.616"></a> -<span class="sourceLineNo">617</span> /**<a name="line.617"></a> -<span class="sourceLineNo">618</span> * Create round-robin assigns. Use on table creation to distribute out regions across cluster.<a name="line.618"></a> -<span class="sourceLineNo">619</span> * @return AssignProcedures made out of the passed in <code>hris</code> and a call to the balancer<a name="line.619"></a> -<span class="sourceLineNo">620</span> * to populate the assigns with targets chosen using round-robin (default balancer<a name="line.620"></a> -<span class="sourceLineNo">621</span> * scheme). If at assign-time, the target chosen is no longer up, thats fine, the<a name="line.621"></a> -<span class="sourceLineNo">622</span> * AssignProcedure will ask the balancer for a new target, and so on.<a name="line.622"></a> -<span class="sourceLineNo">623</span> */<a name="line.623"></a> -<span class="sourceLineNo">624</span> public TransitRegionStateProcedure[] createRoundRobinAssignProcedures(List<RegionInfo> hris,<a name="line.624"></a> -<span class="sourceLineNo">625</span> List<ServerName> serversToExclude) {<a name="line.625"></a> -<span class="sourceLineNo">626</span> if (hris.isEmpty()) {<a name="line.626"></a> -<span class="sourceLineNo">627</span> return new TransitRegionStateProcedure[0];<a name="line.627"></a> -<span class="sourceLineNo">628</span> }<a name="line.628"></a> -<span class="sourceLineNo">629</span><a name="line.629"></a> -<span class="sourceLineNo">630</span> if (serversToExclude != null<a name="line.630"></a> -<span class="sourceLineNo">631</span> && this.master.getServerManager().getOnlineServersList().size() == 1) {<a name="line.631"></a> -<span class="sourceLineNo">632</span> LOG.debug("Only one region server found and hence going ahead with the assignment");<a name="line.632"></a> -<span class="sourceLineNo">633</span> serversToExclude = null;<a name="line.633"></a> -<span class="sourceLineNo">634</span> }<a name="line.634"></a> -<span class="sourceLineNo">635</span> try {<a name="line.635"></a> -<span class="sourceLineNo">636</span> // Ask the balancer to assign our regions. Pass the regions en masse. The balancer can do<a name="line.636"></a> -<span class="sourceLineNo">637</span> // a better job if it has all the assignments in the one lump.<a name="line.637"></a> -<span class="sourceLineNo">638</span> Map<ServerName, List<RegionInfo>> assignments = getBalancer().roundRobinAssignment(hris,<a name="line.638"></a> -<span class="sourceLineNo">639</span> this.master.getServerManager().createDestinationServersList(serversToExclude));<a name="line.639"></a> -<span class="sourceLineNo">640</span> // Return mid-method!<a name="line.640"></a> -<span class="sourceLineNo">641</span> return createAssignProcedures(assignments);<a name="line.641"></a> -<span class="sourceLineNo">642</span> } catch (HBaseIOException hioe) {<a name="line.642"></a> -<span class="sourceLineNo">643</span> LOG.warn("Failed roundRobinAssignment", hioe);<a name="line.643"></a> -<span class="sourceLineNo">644</span> }<a name="line.644"></a> -<span class="sourceLineNo">645</span> // If an error above, fall-through to this simpler assign. Last resort.<a name="line.645"></a> -<span class="sourceLineNo">646</span> return createAssignProcedures(hris);<a name="line.646"></a> -<span class="sourceLineNo">647</span> }<a name="line.647"></a> -<span class="sourceLineNo">648</span><a name="line.648"></a> -<span class="sourceLineNo">649</span> /**<a name="line.649"></a> -<span class="sourceLineNo">650</span> * Create round-robin assigns. Use on table creation to distribute out regions across cluster.<a name="line.650"></a> -<span class="sourceLineNo">651</span> * @return AssignProcedures made out of the passed in <code>hris</code> and a call to the balancer<a name="line.651"></a> -<span class="sourceLineNo">652</span> * to populate the assigns with targets chosen using round-robin (default balancer<a name="line.652"></a> -<span class="sourceLineNo">653</span> * scheme). If at assign-time, the target chosen is no longer up, thats fine, the<a name="line.653"></a> -<span class="sourceLineNo">654</span> * AssignProcedure will ask the balancer for a new target, and so on.<a name="line.654"></a> -<span class="sourceLineNo">655</span> */<a name="line.655"></a> -<span class="sourceLineNo">656</span> public TransitRegionStateProcedure[] createRoundRobinAssignProcedures(List<RegionInfo> hris) {<a name="line.656"></a> -<span class="sourceLineNo">657</span> return createRoundRobinAssignProcedures(hris, null);<a name="line.657"></a> -<span class="sourceLineNo">658</span> }<a name="line.658"></a> -<span class="sourceLineNo">659</span><a name="line.659"></a> -<span class="sourceLineNo">660</span> @VisibleForTesting<a name="line.660"></a> -<span class="sourceLineNo">661</span> static int compare(TransitRegionStateProcedure left, TransitRegionStateProcedure right) {<a name="line.661"></a> -<span class="sourceLineNo">662</span> if (left.getRegion().isMetaRegion()) {<a name="line.662"></a> -<span class="sourceLineNo">663</span> if (right.getRegion().isMetaRegion()) {<a name="line.663"></a> -<span class="sourceLineNo">664</span> return RegionInfo.COMPARATOR.compare(left.getRegion(), right.getRegion());<a name="line.664"></a> -<span class="sourceLineNo">665</span> }<a name="line.665"></a> -<span class="sourceLineNo">666</span> return -1;<a name="line.666"></a> -<span class="sourceLineNo">667</span> } else if (right.getRegion().isMetaRegion()) {<a name="line.667"></a> -<span class="sourceLineNo">668</span> return +1;<a name="line.668"></a> -<span class="sourceLineNo">669</span> }<a name="line.669"></a> -<span class="sourceLineNo">670</span> if (left.getRegion().getTable().isSystemTable()) {<a name="line.670"></a> -<span class="sourceLineNo">671</span> if (right.getRegion().getTable().isSystemTable()) {<a name="line.671"></a> -<span class="sourceLineNo">672</span> return RegionInfo.COMPARATOR.compare(left.getRegion(), right.getRegion());<a name="line.672"></a> -<span class="sourceLineNo">673</span> }<a name="line.673"></a> -<span class="sourceLineNo">674</span> return -1;<a name="line.674"></a> -<span class="sourceLineNo">675</span> } else if (right.getRegion().getTable().isSystemTable()) {<a name="line.675"></a> -<span class="sourceLineNo">676</span> return +1;<a name="line.676"></a> -<span class="sourceLineNo">677</span> }<a name="line.677"></a> -<span class="sourceLineNo">678</span> return RegionInfo.COMPARATOR.compare(left.getRegion(), right.getRegion());<a name="line.678"></a> -<span class="sourceLineNo">679</span> }<a name="line.679"></a> -<span class="sourceLineNo">680</span><a name="line.680"></a> -<span class="sourceLineNo">681</span> private TransitRegionStateProcedure createAssignProcedure(RegionStateNode regionNode,<a name="line.681"></a> -<span class="sourceLineNo">682</span> ServerName targetServer) {<a name="line.682"></a> -<span class="sourceLineNo">683</span> TransitRegionStateProcedure proc;<a name="line.683"></a> -<span class="sourceLineNo">684</span> regionNode.lock();<a name="line.684"></a> -<span class="sourceLineNo">685</span> try {<a name="line.685"></a> -<span class="sourceLineNo">686</span> assert regionNode.getProcedure() == null;<a name="line.686"></a> -<span class="sourceLineNo">687</span> proc = TransitRegionStateProcedure.assign(getProcedureEnvironment(),<a name="line.687"></a> -<span class="sourceLineNo">688</span> regionNode.getRegionInfo(), targetServer);<a name="line.688"></a> -<span class="sourceLineNo">689</span> regionNode.setProcedure(proc);<a name="line.689"></a> -<span class="sourceLineNo">690</span> } finally {<a name="line.690"></a> -<span class="sourceLineNo">691</span> regionNode.unlock();<a name="line.691"></a> -<span class="sourceLineNo">692</span> }<a name="line.692"></a> -<span class="sourceLineNo">693</span> return proc;<a name="line.693"></a> -<span class="sourceLineNo">694</span> }<a name="line.694"></a> -<span class="sourceLineNo">695</span><a name="line.695"></a> -<span class="sourceLineNo">696</span> /**<a name="line.696"></a> -<span class="sourceLineNo">697</span> * Create an array of TransitRegionStateProcedure w/o specifying a target server.<a name="line.697"></a> -<span class="sourceLineNo">698</span> * <p/><a name="line.698"></a> -<span class="sourceLineNo">699</span> * If no target server, at assign time, we will try to use the former location of the region if<a name="line.699"></a> -<span class="sourceLineNo">700</span> * one exists. This is how we 'retain' the old location across a server restart.<a name="line.700"></a> +<span class="sourceLineNo">547</span> // TODO: Need an async version of this for hbck2.<a name="line.547"></a> +<span class="sourceLineNo">548</span> public long assign(RegionInfo regionInfo, ServerName sn) throws IOException {<a name="line.548"></a> +<span class="sourceLineNo">549</span> // TODO: should we use getRegionStateNode?<a name="line.549"></a> +<span class="sourceLineNo">550</span> RegionStateNode regionNode = regionStates.getOrCreateRegionStateNode(regionInfo);<a name="line.550"></a> +<span class="sourceLineNo">551</span> TransitRegionStateProcedure proc;<a name="line.551"></a> +<span class="sourceLineNo">552</span> regionNode.lock();<a name="line.552"></a> +<span class="sourceLineNo">553</span> try {<a name="line.553"></a> +<span class="sourceLineNo">554</span> preTransitCheck(regionNode, STATES_EXPECTED_ON_ASSIGN);<a name="line.554"></a> +<span class="sourceLineNo">555</span> proc = TransitRegionStateProcedure.assign(getProcedureEnvironment(), regionInfo, sn);<a name="line.555"></a> +<span class="sourceLineNo">556</span> regionNode.setProcedure(proc);<a name="line.556"></a> +<span class="sourceLineNo">557</span> } finally {<a name="line.557"></a> +<span class="sourceLineNo">558</span> regionNode.unlock();<a name="line.558"></a> +<span class="sourceLineNo">559</span> }<a name="line.559"></a> +<span class="sourceLineNo">560</span> ProcedureSyncWait.submitAndWaitProcedure(master.getMasterProcedureExecutor(), proc);<a name="line.560"></a> +<span class="sourceLineNo">561</span> return proc.getProcId();<a name="line.561"></a> +<span class="sourceLineNo">562</span> }<a name="line.562"></a> +<span class="sourceLineNo">563</span><a name="line.563"></a> +<span class="sourceLineNo">564</span> public long assign(RegionInfo regionInfo) throws IOException {<a name="line.564"></a> +<span class="sourceLineNo">565</span> return assign(regionInfo, null);<a name="line.565"></a> +<span class="sourceLineNo">566</span> }<a name="line.566"></a> +<span class="sourceLineNo">567</span><a name="line.567"></a> +<span class="sourceLineNo">568</span> public long unassign(RegionInfo regionInfo) throws IOException {<a name="line.568"></a> +<span class="sourceLineNo">569</span> RegionStateNode regionNode = regionStates.getRegionStateNode(regionInfo);<a name="line.569"></a> +<span class="sourceLineNo">570</span> if (regionNode == null) {<a name="line.570"></a> +<span class="sourceLineNo">571</span> throw new UnknownRegionException("No RegionState found for " + regionInfo.getEncodedName());<a name="line.571"></a> +<span class="sourceLineNo">572</span> }<a name="line.572"></a> +<span class="sourceLineNo">573</span> TransitRegionStateProcedure proc;<a name="line.573"></a> +<span class="sourceLineNo">574</span> regionNode.lock();<a name="line.574"></a> +<span class="sourceLineNo">575</span> try {<a name="line.575"></a> +<span class="sourceLineNo">576</span> preTransitCheck(regionNode, STATES_EXPECTED_ON_UNASSIGN_OR_MOVE);<a name="line.576"></a> +<span class="sourceLineNo">577</span> proc = TransitRegionStateProcedure.unassign(getProcedureEnvironment(), regionInfo);<a name="line.577"></a> +<span class="sourceLineNo">578</span> regionNode.setProcedure(proc);<a name="line.578"></a> +<span class="sourceLineNo">579</span> } finally {<a name="line.579"></a> +<span class="sourceLineNo">580</span> regionNode.unlock();<a name="line.580"></a> +<span class="sourceLineNo">581</span> }<a name="line.581"></a> +<span class="sourceLineNo">582</span> ProcedureSyncWait.submitAndWaitProcedure(master.getMasterProcedureExecutor(), proc);<a name="line.582"></a> +<span class="sourceLineNo">583</span> return proc.getProcId();<a name="line.583"></a> +<span class="sourceLineNo">584</span> }<a name="line.584"></a> +<span class="sourceLineNo">585</span><a name="line.585"></a> +<span class="sourceLineNo">586</span> private TransitRegionStateProcedure createMoveRegionProcedure(RegionInfo regionInfo,<a name="line.586"></a> +<span class="sourceLineNo">587</span> ServerName targetServer) throws HBaseIOException {<a name="line.587"></a> +<span class="sourceLineNo">588</span> RegionStateNode regionNode = this.regionStates.getRegionStateNode(regionInfo);<a name="line.588"></a> +<span class="sourceLineNo">589</span> if (regionNode == null) {<a name="line.589"></a> +<span class="sourceLineNo">590</span> throw new UnknownRegionException("No RegionState found for " + regionInfo.getEncodedName());<a name="line.590"></a> +<span class="sourceLineNo">591</span> }<a name="line.591"></a> +<span class="sourceLineNo">592</span> TransitRegionStateProcedure proc;<a name="line.592"></a> +<span class="sourceLineNo">593</span> regionNode.lock();<a name="line.593"></a> +<span class="sourceLineNo">594</span> try {<a name="line.594"></a> +<span class="sourceLineNo">595</span> preTransitCheck(regionNode, STATES_EXPECTED_ON_UNASSIGN_OR_MOVE);<a name="line.595"></a> +<span class="sourceLineNo">596</span> regionNode.checkOnline();<a name="line.596"></a> +<span class="sourceLineNo">597</span> proc = TransitRegionStateProcedure.move(getProcedureEnvironment(), regionInfo, targetServer);<a name="line.597"></a> +<span class="sourceLineNo">598</span> regionNode.setProcedure(proc);<a name="line.598"></a> +<span class="sourceLineNo">599</span> } finally {<a name="line.599"></a> +<span class="sourceLineNo">600</span> regionNode.unlock();<a name="line.600"></a> +<span class="sourceLineNo">601</span> }<a name="line.601"></a> +<span class="sourceLineNo">602</span> return proc;<a name="line.602"></a> +<span class="sourceLineNo">603</span> }<a name="line.603"></a> +<span class="sourceLineNo">604</span><a name="line.604"></a> +<span class="sourceLineNo">605</span> public void move(RegionInfo regionInfo) throws IOException {<a name="line.605"></a> +<span class="sourceLineNo">606</span> TransitRegionStateProcedure proc = createMoveRegionProcedure(regionInfo, null);<a name="line.606"></a> +<span class="sourceLineNo">607</span> ProcedureSyncWait.submitAndWaitProcedure(master.getMasterProcedureExecutor(), proc);<a name="line.607"></a> +<span class="sourceLineNo">608</span> }<a name="line.608"></a> +<span class="sourceLineNo">609</span><a name="line.609"></a> +<span class="sourceLineNo">610</span> public Future<byte[]> moveAsync(RegionPlan regionPlan) throws HBaseIOException {<a name="line.610"></a> +<span class="sourceLineNo">611</span> TransitRegionStateProcedure proc =<a name="line.611"></a> +<span class="sourceLineNo">612</span> createMoveRegionProcedure(regionPlan.getRegionInfo(), regionPlan.getDestination());<a name="line.612"></a> +<span class="sourceLineNo">613</span> return ProcedureSyncWait.submitProcedure(master.getMasterProcedureExecutor(), proc);<a name="line.613"></a> +<span class="sourceLineNo">614</span> }<a name="line.614"></a> +<span class="sourceLineNo">615</span><a name="line.615"></a> +<span class="sourceLineNo">616</span> // ============================================================================================<a name="line.616"></a> +<span class="sourceLineNo">617</span> // RegionTransition procedures helpers<a name="line.617"></a> +<span class="sourceLineNo">618</span> // ============================================================================================<a name="line.618"></a> +<span class="sourceLineNo">619</span><a name="line.619"></a> +<span class="sourceLineNo">620</span> /**<a name="line.620"></a> +<span class="sourceLineNo">621</span> * Create round-robin assigns. Use on table creation to distribute out regions across cluster.<a name="line.621"></a> +<span class="sourceLineNo">622</span> * @return AssignProcedures made out of the passed in <code>hris</code> and a call to the balancer<a name="line.622"></a> +<span class="sourceLineNo">623</span> * to populate the assigns with targets chosen using round-robin (default balancer<a name="line.623"></a> +<span class="sourceLineNo">624</span> * scheme). If at assign-time, the target chosen is no longer up, thats fine, the<a name="line.624"></a> +<span class="sourceLineNo">625</span> * AssignProcedure will ask the balancer for a new target, and so on.<a name="line.625"></a> +<span class="sourceLineNo">626</span> */<a name="line.626"></a> +<span class="sourceLineNo">627</span> public TransitRegionStateProcedure[] createRoundRobinAssignProcedures(List<RegionInfo> hris,<a name="line.627"></a> +<span class="sourceLineNo">628</span> List<ServerName> serversToExclude) {<a name="line.628"></a> +<span class="sourceLineNo">629</span> if (hris.isEmpty()) {<a name="line.629"></a> +<span class="sourceLineNo">630</span> return new TransitRegionStateProcedure[0];<a name="line.630"></a> +<span class="sourceLineNo">631</span> }<a name="line.631"></a> +<span class="sourceLineNo">632</span><a name="line.632"></a> +<span class="sourceLineNo">633</span> if (serversToExclude != null<a name="line.633"></a> +<span class="sourceLineNo">634</span> && this.master.getServerManager().getOnlineServersList().size() == 1) {<a name="line.634"></a> +<span class="sourceLineNo">635</span> LOG.debug("Only one region server found and hence going ahead with the assignment");<a name="line.635"></a> +<span class="sourceLineNo">636</span> serversToExclude = null;<a name="line.636"></a> +<span class="sourceLineNo">637</span> }<a name="line.637"></a> +<span class="sourceLineNo">638</span> try {<a name="line.638"></a> +<span class="sourceLineNo">639</span> // Ask the balancer to assign our regions. Pass the regions en masse. The balancer can do<a name="line.639"></a> +<span class="sourceLineNo">640</span> // a better job if it has all the assignments in the one lump.<a name="line.640"></a> +<span class="sourceLineNo">641</span> Map<ServerName, List<RegionInfo>> assignments = getBalancer().roundRobinAssignment(hris,<a name="line.641"></a> +<span class="sourceLineNo">642</span> this.master.getServerManager().createDestinationServersList(serversToExclude));<a name="line.642"></a> +<span class="sourceLineNo">643</span> // Return mid-method!<a name="line.643"></a> +<span class="sourceLineNo">644</span> return createAssignProcedures(assignments);<a name="line.644"></a> +<span class="sourceLineNo">645</span> } catch (HBaseIOException hioe) {<a name="line.645"></a> +<span class="sourceLineNo">646</span> LOG.warn("Failed roundRobinAssignment", hioe);<a name="line.646"></a> +<span class="sourceLineNo">647</span> }<a name="line.647"></a> +<span class="sourceLineNo">648</span> // If an error above, fall-through to this simpler assign. Last resort.<a name="line.648"></a> +<span class="sourceLineNo">649</span> return createAssignProcedures(hris);<a name="line.649"></a> +<span class="sourceLineNo">650</span> }<a name="line.650"></a> +<span class="sourceLineNo">651</span><a name="line.651"></a> +<span class="sourceLineNo">652</span> /**<a name="line.652"></a> +<span class="sourceLineNo">653</span> * Create round-robin assigns. Use on table creation to distribute out regions across cluster.<a name="line.653"></a> +<span class="sourceLineNo">654</span> * @return AssignProcedures made out of the passed in <code>hris</code> and a call to the balancer<a name="line.654"></a> +<span class="sourceLineNo">655</span> * to populate the assigns with targets chosen using round-robin (default balancer<a name="line.655"></a> +<span class="sourceLineNo">656</span> * scheme). If at assign-time, the target chosen is no longer up, thats fine, the<a name="line.656"></a> +<span class="sourceLineNo">657</span> * AssignProcedure will ask the balancer for a new target, and so on.<a name="line.657"></a> +<span class="sourceLineNo">658</span> */<a name="line.658"></a> +<span class="sourceLineNo">659</span> public TransitRegionStateProcedure[] createRoundRobinAssignProcedures(List<RegionInfo> hris) {<a name="line.659"></a> +<span class="sourceLineNo">660</span> return createRoundRobinAssignProcedures(hris, null);<a name="line.660"></a> +<span class="sourceLineNo">661</span> }<a name="line.661"></a> +<span class="sourceLineNo">662</span><a name="line.662"></a> +<span class="sourceLineNo">663</span> @VisibleForTesting<a name="line.663"></a> +<span class="sourceLineNo">664</span> static int compare(TransitRegionStateProcedure left, TransitRegionStateProcedure right) {<a name="line.664"></a> +<span class="sourceLineNo">665</span> if (left.getRegion().isMetaRegion()) {<a name="line.665"></a> +<span class="sourceLineNo">666</span> if (right.getRegion().isMetaRegion()) {<a name="line.666"></a> +<span class="sourceLineNo">667</span> return RegionInfo.COMPARATOR.compare(left.getRegion(), right.getRegion());<a name="line.667"></a> +<span class="sourceLineNo">668</span> }<a name="line.668"></a> +<span class="sourceLineNo">669</span> return -1;<a name="line.669"></a> +<span class="sourceLineNo">670</span> } else if (right.getRegion().isMetaRegion()) {<a name="line.670"></a> +<span class="sourceLineNo">671</span> return +1;<a name="line.671"></a> +<span class="sourceLineNo">672</span> }<a name="line.672"></a> +<span class="sourceLineNo">673</span> if (left.getRegion().getTable().isSystemTable()) {<a name="line.673"></a> +<span class="sourceLineNo">674</span> if (right.getRegion().getTable().isSystemTable()) {<a name="line.674"></a> +<span class="sourceLineNo">675</span> return RegionInfo.COMPARATOR.compare(left.getRegion(), right.getRegion());<a name="line.675"></a> +<span class="sourceLineNo">676</span> }<a name="line.676"></a> +<span class="sourceLineNo">677</span> return -1;<a name="line.677"></a> +<span class="sourceLineNo">678</span> } else if (right.getRegion().getTable().isSystemTable()) {<a name="line.678"></a> +<span class="sourceLineNo">679</span> return +1;<a name="line.679"></a> +<span class="sourceLineNo">680</span> }<a name="line.680"></a> +<span class="sourceLineNo">681</span> return RegionInfo.COMPARATOR.compare(left.getRegion(), right.getRegion());<a name="line.681"></a> +<span class="sourceLineNo">682</span> }<a name="line.682"></a> +<span class="sourceLineNo">683</span><a name="line.683"></a> +<span class="sourceLineNo">684</span> private TransitRegionStateProcedure createAssignProcedure(RegionStateNode regionNode,<a name="line.684"></a> +<span class="sourceLineNo">685</span> ServerName targetServer) {<a name="line.685"></a> +<span class="sourceLineNo">686</span> TransitRegionStateProcedure proc;<a name="line.686"></a> +<span class="sourceLineNo">687</span> regionNode.lock();<a name="line.687"></a> +<span class="sourceLineNo">688</span> try {<a name="line.688"></a> +<span class="sourceLineNo">689</span> assert regionNode.getProcedure() == null;<a name="line.689"></a> +<span class="sourceLineNo">690</span> proc = TransitRegionStateProcedure.assign(getProcedureEnvironment(),<a name="line.690"></a> +<span class="sourceLineNo">691</span> regionNode.getRegionInfo(), targetServer);<a name="line.691"></a> +<span class="sourceLineNo">692</span> regionNode.setProcedure(proc);<a name="line.692"></a> +<span class="sourceLineNo">693</span> } finally {<a name="line.693"></a> +<span class="sourceLineNo">694</span> regionNode.unlock();<a name="line.694"></a> +<span class="sourceLineNo">695</span> }<a name="line.695"></a> +<span class="sourceLineNo">696</span> return proc;<a name="line.696"></a> +<span class="sourceLineNo">697</span> }<a name="line.697"></a> +<span class="sourceLineNo">698</span><a name="line.698"></a> +<span class="sourceLineNo">699</span> /**<a name="line.699"></a> +<span class="sourceLineNo">700</span> * Create an array of TransitRegionStateProcedure w/o specifying a target server.<a name="line.700"></a> <span class="sourceLineNo">701</span> * <p/><a name="line.701"></a> -<span class="sourceLineNo">702</span> * Should only be called when you can make sure that no one can touch these regions other than<a name="line.702"></a> -<span class="sourceLineNo">703</span> * you. For example, when you are creating table.<a name="line.703"></a> -<span class="sourceLineNo">704</span> */<a name="line.704"></a> -<span class="sourceLineNo">705</span> public TransitRegionStateProcedure[] createAssignProcedures(List<RegionInfo> hris) {<a name="line.705"></a> -<span class="sourceLineNo">706</span> return hris.stream().map(hri -> regionStates.getOrCreateRegionStateNode(hri))<a name="line.706"></a> -<span class="sourceLineNo">707</span> .map(regionNode -> createAssignProcedure(regionNode, null)).sorted(AssignmentManager::compare)<a name="line.707"></a> -<span class="sourceLineNo">708</span> .toArray(TransitRegionStateProcedure[]::new);<a name="line.708"></a> -<span class="sourceLineNo">709</span> }<a name="line.709"></a> -<span class="sourceLineNo">710</span><a name="line.710"></a> -<span class="sourceLineNo">711</span> /**<a name="line.711"></a> -<span class="sourceLineNo">712</span> * @param assignments Map of assignments from which we produce an array of AssignProcedures.<a name="line.712"></a> -<span class="sourceLineNo">713</span> * @return Assignments made from the passed in <code>assignments</code><a name="line.713"></a> -<span class="sourceLineNo">714</span> */<a name="line.714"></a> -<span class="sourceLineNo">715</span> private TransitRegionStateProcedure[] createAssignProcedures(<a name="line.715"></a> -<span class="sourceLineNo">716</span> Map<ServerName, List<RegionInfo>> assignments) {<a name="line.716"></a> -<span class="sourceLineNo">717</span> return assignments.entrySet().stream()<a name="line.717"></a> -<span class="sourceLineNo">718</span> .flatMap(e -> e.getValue().stream().map(hri -> regionStates.getOrCreateRegionStateNode(hri))<a name="line.718"></a> -<span class="sourceLineNo">719</span> .map(regionNode -> createAssignProcedure(regionNode, e.getKey())))<a name="line.719"></a> -<span class="sourceLineNo">720</span> .sorted(AssignmentManager::compare).toArray(TransitRegionStateProcedure[]::new);<a name="line.720"></a> -<span class="sourceLineNo">721</span> }<a name="line.721"></a> -<span class="sourceLineNo">722</span><a name="line.722"></a> -<span class="sourceLineNo">723</span> /**<a name="line.723"></a> -<span class="sourceLineNo">724</span> * Called by DisableTableProcedure to unassign all the regions for a table.<a name="line.724"></a> -<span class="sourceLineNo">725</span> */<a name="line.725"></a> -<span class="sourceLineNo">726</span> public TransitRegionStateProcedure[] createUnassignProceduresForDisabling(TableName tableName) {<a name="line.726"></a> -<span class="sourceLineNo">727</span> return regionStates.getTableRegionStateNodes(tableName).stream().map(regionNode -> {<a name="line.727"></a> -<span class="sourceLineNo">728</span> regionNode.lock();<a name="line.728"></a> -<span class="sourceLineNo">729</span> try {<a name="line.729"></a> -<span class="sourceLineNo">730</span> if (!regionStates.include(regionNode, false) ||<a name="line.730"></a> -<span class="sourceLineNo">731</span> regionStates.isRegionOffline(regionNode.getRegionInfo())) {<a name="line.731"></a> -<span class="sourceLineNo">732</span> return null;<a name="line.732"></a> -<span class="sourceLineNo">733</span> }<a name="line.733"></a> -<span class="sourceLineNo">734</span> // As in DisableTableProcedure, we will hold the xlock for table, so we can make sure that<a name="line.734"></a> -<span class="sourceLineNo">735</span> // this procedure has not been executed yet, as TRSP will hold the shared lock for table all<a name="line.735"></a> -<span class="sourceLineNo">736</span> // the time. So here we will unset it and when it is actually executed, it will find that<a name="line.736"></a> -<span class="sourceLineNo">737</span> // the attach procedure is not itself and quit immediately.<a name="line.737"></a> -<span class="sourceLineNo">738</span> if (regionNode.getProcedure() != null) {<a name="line.738"></a> -<span class="sourceLineNo">739</span> regionNode.unsetProcedure(regionNode.getProcedure());<a name="line.739"></a> -<span class="sourceLineNo">740</span> }<a name="line.740"></a> -<span class="sourceLineNo">741</span> TransitRegionStateProcedure proc = TransitRegionStateProcedure<a name="line.741"></a> -<span class="sourceLineNo">742</span> .unassign(getProcedureEnvironment(), regionNode.getRegionInfo());<a name="line.742"></a> -<span class="sourceLineNo">743</span> regionNode.setProcedure(proc);<a name="line.743"></a> -<span class="sourceLineNo">744</span> return proc;<a name="line.744"></a> -<span class="sourceLineNo">745</span> } finally {<a name="line.745"></a> -<span class="sourceLineNo">746</span> regionNode.unlock();<a name="line.746"></a> -<span class="sourceLineNo">747</span> }<a name="line.747"></a> -<span class="sourceLineNo">748</span> }).filter(p -> p != null).toArray(TransitRegionStateProcedure[]::new);<a name="line.748"></a> -<span class="sourceLineNo">749</span> }<a name="line.749"></a> -<span class="sourceLineNo">750</span><a name="line.750"></a> -<span class="sourceLineNo">751</span> public SplitTableRegionProcedure createSplitProcedure(final RegionInfo regionToSplit,<a name="line.751"></a> -<span class="sourceLineNo">752</span> final byte[] splitKey) throws IOException {<a name="line.752"></a> -<span class="sourceLineNo">753</span> return new SplitTableRegionProcedure(getProcedureEnvironment(), regionToSplit, splitKey);<a name="line.753"></a> -<span class="sourceLineNo">754</span> }<a name="line.754"></a> -<span class="sourceLineNo">755</span><a name="line.755"></a> -<span class="sourceLineNo">756</span> public MergeTableRegionsProcedure createMergeProcedure(final RegionInfo regionToMergeA,<a name="line.756"></a> -<span class="sourceLineNo">757</span> final RegionInfo regionToMergeB) throws IOException {<a name="line.757"></a> -<span class="sourceLineNo">758</span> return new MergeTableRegionsProcedure(getProcedureEnvironment(), regionToMergeA,regionToMergeB);<a name="line.758"></a> -<span class="sourceLineNo">759</span> }<a name="line.759"></a> -<span class="sourceLineNo">760</span><a name="line.760"></a> -<span class="sourceLineNo">761</span> /**<a name="line.761"></a> -<span class="sourceLineNo">762</span> * Delete the region states. This is called by "DeleteTable"<a name="line.762"></a> -<span class="sourceLineNo">763</span> */<a name="line.763"></a> -<span class="sourceLineNo">764</span> public void deleteTable(final TableName tableName) throws IOException {<a name="line.764"></a> -<span class="sourceLineNo">765</span> final ArrayList<RegionInfo> regions = regionStates.getTableRegionsInfo(tableName);<a name="line.765"></a> -<span class="sourceLineNo">766</span> regionStateStore.deleteRegions(regions);<a name="line.766"></a> -<span class="sourceLineNo">767</span> for (int i = 0; i < regions.size(); ++i) {<a name="line.767"></a> -<span class="sourceLineNo">768</span> final RegionInfo regionInfo = regions.get(i);<a name="line.768"></a> -<span class="sourceLineNo">769</span> // we expect the region to be offline<a name="line.769"></a> -<span class="sourceLineNo">770</span> regionStates.removeFromOfflineRegions(regionInfo);<a name="line.770"></a> -<span class="sourceLineNo">771</span> regionStates.deleteRegion(regionInfo);<a name="line.771"></a> -<span class="sourceLineNo">772</span> }<a name="line.772"></a> -<span class="sourceLineNo">773</span> }<a name="line.773"></a> -<span class="sourceLineNo">774</span><a name="line.774"></a> -<span class="sourceLineNo">775</span> // ============================================================================================<a name="line.775"></a> -<span class="sourceLineNo">776</span> // RS Region Transition Report helpers<a name="line.776"></a> -<span class="sourceLineNo">777</span> // ============================================================================================<a name="line.777"></a> -<span class="sourceLineNo">778</span> // TODO: Move this code in MasterRpcServices and call on specific event?<a name="line.778"></a> -<span class="sourceLineNo">779</span> public ReportRegionStateTransitionResponse reportRegionStateTransition(<a name="line.779"></a> -<span class="sourceLineNo">780</span> final ReportRegionStateTransitionRequest req) throws PleaseHoldException {<a name="line.780"></a> -<span class="sourceLineNo">781</span> final ReportRegionStateTransitionResponse.Builder builder =<a name="line.781"></a> -<span class="sourceLineNo">782</span> ReportRegionStateTransitionResponse.newBuilder();<a name="line.782"></a> -<span class="sourceLineNo">783</span> final ServerName serverName = ProtobufUtil.toServerName(req.getServer());<a name="line.783"></a> -<span class="sourceLineNo">784</span> try {<a name="line.784"></a> -<span class="sourceLineNo">785</span> for (RegionStateTransition transition: req.getTransitionList()) {<a name="line.785"></a> -<span class="sourceLineNo">786</span> switch (transition.getTransitionCode()) {<a name="line.786"></a> -<span class="sourceLineNo">787</span> case OPENED:<a name="line.787"></a> -<span class="sourceLineNo">788</span> case FAILED_OPEN:<a name="line.788"></a> -<span class="sourceLineNo">789</span> case CLOSED:<a name="line.789"></a> -<span class="sourceLineNo">790</span> assert transition.getRegionInfoCount() == 1 : transition;<a name="line.790"></a> -<span class="sourceLineNo">791</span> final RegionInfo hri = ProtobufUtil.toRegionInfo(transition.getRegionInfo(0));<a name="line.791"></a> -<span class="sourceLineNo">792</span> updateRegionTransition(serverName, transition.getTransitionCode(), hri,<a name="line.792"></a> -<span class="sourceLineNo">793</span> transition.hasOpenSeqNum() ? transition.getOpenSeqNum() : HConstants.NO_SEQNUM);<a name="line.793"></a> -<span class="sourceLineNo">794</span> break;<a name="line.794"></a> -<span class="sourceLineNo">795</span> case READY_TO_SPLIT:<a name="line.795"></a> -<span class="sourceLineNo">796</span> case SPLIT:<a name="line.796"></a> -<span class="sourceLineNo">797</span> case SPLIT_REVERTED:<a name="line.797"></a> -<span class="sourceLineNo">798</span> assert transition.getRegionInfoCount() == 3 : transition;<a name="line.798"></a> -<span class="sourceLineNo">799</span> final RegionInfo parent = ProtobufUtil.toRegionInfo(transition.getRegionInfo(0));<a name="line.799"></a> -<span class="sourceLineNo">800</span> final RegionInfo splitA = ProtobufUtil.toRegionInfo(transition.getRegionInfo(1));<a name="line.800"></a> -<span class="sourceLineNo">801</span> final RegionInfo splitB = ProtobufUtil.toRegionInfo(transition.getRegionInfo(2));<a name="line.801"></a> -<span class="sourceLineNo">802</span> updateRegionSplitTransition(serverName, transition.getTransitionCode(),<a name="line.802"></a> -<span class="sourceLineNo">803</span> parent, splitA, splitB);<a name="line.803"></a> -<span class="sourceLineNo">804</span> break;<a name="line.804"></a> -<span class="sourceLineNo">805</span> case READY_TO_MERGE:<a name="line.805"></a> -<span class="sourceLineNo">806</span> case MERGED:<a name="line.806"></a> -<span class="sourceLineNo">807</span> case MERGE_REVERTED:<a name="line.807"></a> -<span class="sourceLineNo">808</span> assert transition.getRegionInfoCount() == 3 : transition;<a name="line.808"></a> -<span class="sourceLineNo">809</span> final RegionInfo merged = ProtobufUtil.toRegionInfo(transition.getRegionInfo(0));<a name="line.809"></a> -<span class="sourceLineNo">810</span> final RegionInfo mergeA = ProtobufUtil.toRegionInfo(transition.getRegionInfo(1));<a name="line.810"></a> -<span class="sourceLineNo">811</span> final RegionInfo mergeB = ProtobufUtil.toRegionInfo(transition.getRegionInfo(2));<a name="line.811"></a> -<span class="sourceLineNo">812</span> updateRegionMergeTransition(serverName, transition.getTransitionCode(),<a name="line.812"></a> -<span class="sourceLineNo">813</span> merged, mergeA, mergeB);<a name="line.813"></a> -<span class="sourceLineNo">814</span> break;<a name="line.814"></a> -<span class="sourceLineNo">815</span> }<a name="line.815"></a> -<span class="sourceLineNo">816</span> }<a name="line.816"></a> -<span class="sourceLineNo">817</span> } catch (PleaseHoldException e) {<a name="line.817"></a> -<span class="sourceLineNo">818</span> LOG.trace("Failed transition ", e);<a name="line.818"></a> -<span class="sourceLineNo">819</span> throw e;<a name="line.819"></a> -<span class="sourceLineNo">820</span> } catch (UnsupportedOperationException|IOException e) {<a name="line.820"></a> -<span class="sourceLineNo">821</span> // TODO: at the moment we have a single error message and the RS will abort<a name="line.821"></a> -<span class="sourceLineNo">822</span> // if the master says that one of the region transitions failed.<a name="line.822"></a> -<span class="sourceLineNo">823</span> LOG.warn("Failed transition", e);<a name="line.823"></a> -<span class="sourceLineNo">824</span> builder.setErrorMessage("Failed transition " + e.getMessage());<a name="line.824"></a> -<span class="sourceLineNo">825</span> }<a name="line.825"></a> -<span class="sourceLineNo">826</span> return builder.build();<a name="line.826"></a> -<span class="sourceLineNo">827</span> }<a name="line.827"></a> -<span class="sourceLineNo">828</span><a name="line.828"></a> -<span class="sourceLineNo">829</span> private void updateRegionTransition(ServerName serverName, TransitionCode state,<a name="line.829"></a> -<span class="sourceLineNo">830</span> RegionInfo regionInfo, long seqId) throws IOException {<a name="line.830"></a> -<span class="sourceLineNo">831</span> checkMetaLoaded(regionInfo);<a name="line.831"></a> -<span class="sourceLineNo">832</span><a name="line.832"></a> -<span class="sourceLineNo">833</span> RegionStateNode regionNode = regionStates.getRegionStateNode(regionInfo);<a name="line.833"></a> -<span class="sourceLineNo">834</span> if (regionNode == null) {<a name="line.834"></a> -<span class="sourceLineNo">835</span> // the table/region is gone. maybe a delete, split, merge<a name="line.835"></a> -<span class="sourceLineNo">836</span> throw new UnexpectedStateException(String.format(<a name="line.836"></a> -<span class="sourceLineNo">837</span> "Server %s was trying to transition region %s to %s. but the region was removed.",<a name="line.837"></a> -<span class="sourceLineNo">838</span> serverName, regionInfo, state));<a name="line.838"></a> -<span class="sourceLineNo">839</span> }<a name="line.839"></a> -<span class="sourceLineNo">840</span> LOG.trace("Update region transition serverName={} region={} regionState={}", serverName,<a name="line.840"></a> -<span class="sourceLineNo">841</span> regionNode, state);<a name="line.841"></a> -<span class="sourceLineNo">842</span><a name="line.842"></a> -<span class="sourceLineNo">843</span> ServerStateNode serverNode = regionStates.getOrCreateServer(serverName);<a name="line.843"></a> -<span class="sourceLineNo">844</span> regionNode.lock();<a name="line.844"></a> -<span class="sourceLineNo">845</span> try {<a name="line.845"></a> -<span class="sourceLineNo">846</span> if (!reportTransition(regionNode, serverNode, state, seqId)) {<a name="line.846"></a> -<span class="sourceLineNo">847</span> // Don't log WARN if shutting down cluster; during shutdown. Avoid the below messages:<a name="line.847"></a> -<span class="sourceLineNo">848</span> // 2018-08-13 10:45:10,551 WARN ...AssignmentManager: No matching procedure found for<a name="line.848"></a> -<span class="sourceLineNo">849</span> // rit=OPEN, location=ve0538.halxg.cloudera.com,16020,1533493000958,<a name="line.849"></a> -<span class="sourceLineNo">850</span> // table=IntegrationTestBigLinkedList, region=65ab289e2fc1530df65f6c3d7cde7aa5 transition<a name="line.850"></a> -<span class="sourceLineNo">851</span> // to CLOSED<a name="line.851"></a> -<span class="sourceLineNo">852</span> // These happen because on cluster shutdown, we currently let the RegionServers close<a name="line.852"></a> -<span class="sourceLineNo">853</span> // regions. This is the only time that region close is not run by the Master (so cluster<a name="line.853"></a> -<span class="sourceLineNo">854</span> // goes down fast). Consider changing it so Master runs all shutdowns.<a name="line.854"></a> -<span class="sourceLineNo">855</span> if (this.master.getServerManager().isClusterShutdown() &&<a name="line.855"></a> -<span class="sourceLineNo">856</span> state.equals(TransitionCode.CLOSED)) {<a name="line.856"></a> -<span class="sourceLineNo">857</span> LOG.info("RegionServer {} {}", state, regionNode.getRegionInfo().getEncodedName());<a name="line.857"></a> -<span class="sourceLineNo">858</span> } else {<a name="line.858"></a> -<span class="sourceLineNo">859</span> LOG.warn("No matching procedure found for {} transition to {}", regionNode, state);<a name="line.859"></a> -<span class="sourceLineNo">860</span> }<a name="line.860"></a> -<span class="sourceLineNo">861</span> }<a name="line.861"></a> -<span class="sourceLineNo">862</span> } finally {<a name="line.862"></a> -<span class="sourceLineNo">863</span> regionNode.unlock();<a name="line.863"></a> -<span class="sourceLineNo">864</span> }<a name="line.864"></a> -<span class="sourceLineNo">865</span> }<a name="line.865"></a> -<span class="sourceLineNo">866</span><a name="line.866"></a> -<span class="sourceLineNo">867</span> private boolean reportTransition(RegionStateNode regionNode, ServerStateNode serverNode,<a name="line.867"></a> -<span class="sourceLineNo">868</span> TransitionCode state, long seqId) throws IOException {<a name="line.868"></a> -<span class="sourceLineNo">869</span> ServerName serverName = serverNode.getServerName();<a name="line.869"></a> -<span class="sourceLineNo">870</span> TransitRegionStateProcedure proc = regionNode.getProcedure();<a name="line.870"></a> -<span class="sourceLineNo">871</span> if (proc == null) {<a name="line.871"></a> -<span class="sourceLineNo">872</span> return false;<a name="line.872"></a> -<span class="sourceLineNo">873</span> }<a name="line.873"></a> -<span class="sourceLineNo">874</span> proc.reportTransition(master.getMasterProcedureExecutor().getEnvironment(), regionNode,<a name="line.874"></a> -<span class="sourceLineNo">875</span> serverName, state, seqId);<a name="line.875"></a> -<span class="sourceLineNo">876</span> return true;<a name="line.876"></a> -<span class="sourceLineNo">877</span> }<a name="line.877"></a> -<span class="sourceLineNo">878</span><a name="line.878"></a> -<span class="sourceLineNo">879</span> private void updateRegionSplitTransition(final ServerName serverName, final TransitionCode state,<a name="line.879"></a> -<span class="sourceLineNo">880</span> final RegionInfo parent, final RegionInfo hriA, final RegionInfo hriB)<a name="line.880"></a> -<span class="sourceLineNo">881</span> throws IOException {<a name="line.881"></a> -<span class="sourceLineNo">882</span> checkMetaLoaded(parent);<a name="line.882"></a> -<span class="sourceLineNo">883</span><a name="line.883"></a> -<span class="sourceLineNo">884</span> if (state != TransitionCode.READY_TO_SPLIT) {<a name="line.884"></a> -<span class="sourceLineNo">885</span> throw new UnexpectedStateException("unsupported split regionState=" + state +<a name="line.885"></a> -<span class="sourceLineNo">886</span> " for parent region " + parent +<a name="line.886"></a> -<span class="sourceLineNo">887</span> " maybe an old RS (< 2.0) had the operation in progress");<a name="line.887"></a> -<span class="sourceLineNo">888</span> }<a name="line.888"></a> -<span class="sourceLineNo">889</span><a name="line.889"></a> -<span class="sourceLineNo">890</span> // sanity check on the request<a name="line.890"></a> -<span class="sourceLineNo">891</span> if (!Bytes.equals(hriA.getEndKey(), hriB.getStartKey())) {<a name="line.891"></a> -<span class="sourceLineNo">892</span> throw new UnsupportedOperationException(<a name="line.892"></a> -<span class="sourceLineNo">893</span> "unsupported split request with bad keys: parent=" + parent +<a name="line.893"></a> -<span class="sourceLineNo">894</span> " hriA=" + hriA + " hriB=" + hriB);<a name="line.894"></a> -<span class="sourceLineNo">895</span> }<a name="line.895"></a> -<span class="sourceLineNo">896</span><a name="line.896"></a> -<span class="sourceLineNo">897</span> // Submit the Split procedure<a name="line.897"></a> -<span class="sourceLineNo">898</span> final byte[] splitKey = hriB.getStartKey();<a name="line.898"></a> -<span class="sourceLineNo">899</span> if (LOG.isDebugEnabled()) {<a name="line.899"></a> -<span class="sourceLineNo">900</span> LOG.debug("Split request from " + serverName +<a name="line.900"></a> -<span class="sourceLineNo">901</span> ", parent=" + parent + " splitKey=" + Bytes.toStringBinary(splitKey));<a name="line.901"></a> -<span class="sourceLineNo">902</span> }<a name="line.902"></a> -<span class="sourceLineNo">903</span> master.getMasterProcedureExecutor().submitProcedure(createSplitProcedure(parent, splitKey));<a name="line.903"></a> -<span class="sourceLineNo">904</span><a name="line.904"></a> -<span class="sourceLineNo">905</span> // If the RS is < 2.0 throw an exception to abort the operation, we are handling the split<a name="line.905"></a> -<span class="sourceLineNo">906</span> if (master.getServerManager().getVersionNumber(serverName) < 0x0200000) {<a name="line.906"></a> -<span class="sourceLineNo">907</span> throw new UnsupportedOperationException(String.format(<a name="line.907"></a> -<span class="sourceLineNo">908</span> "Split handled by the master: parent=%s hriA=%s hriB=%s", parent.getShortNameToLog(), hriA, hriB));<a name="line.908"></a> -<span class="sourceLineNo">909</span> }<a name="line.909"></a> -<span class="sourceLineNo">910</span> }<a name="line.910"></a> -<span class="sourceLineNo">911</span><a name="line.911"></a> -<span class="sourceLineNo">912</span> private void updateRegionMergeTransition(final ServerName serverName, final TransitionCode state,<a name="line.912"></a> -<span class="sourceLineNo">913</span> final RegionInfo merged, final RegionInfo hriA, final RegionInfo hriB) throws IOException {<a name="line.913"></a> -<span class="sourceLineNo">914</span> checkMetaLoaded(merged);<a name="line.914"></a> -<span class="sourceLineNo">915</span><a name="line.915"></a> -<span class="sourceLineNo">916</span> if (state != TransitionCode.READY_TO_MERGE) {<a name="line.916"></a> -<span class="sourceLineNo">917</span> throw new UnexpectedStateException("Unsupported merge regionState=" + state +<a name="line.917"></a> -<span class="sourceLineNo">918</span> " for regionA=" + hriA + " regionB=" + hriB + " merged=" + merged +<a name="line.918"></a> -<span class="sourceLineNo">919</span> " maybe an old RS (< 2.0) had the operation in progress");<a name="line.919"></a> -<span class="sourceLineNo">920</span> }<a name="line.920"></a> -<span class="sourceLineNo">921</span><a name="line.921"></a> -<span class="sourceLineNo">922</span> // Submit the Merge procedure<a name="line.922"></a> -<span class="sourceLineNo">923</span> if (LOG.isDebugEnabled()) {<a name="line.923"></a> -<span class="sourceLineNo">924</span> LOG.debug("Handling merge request from RS=" + merged + ", merged=" + merged);<a name="line.924"></a> -<span class="sourceLineNo">925</span> }<a name="line.925"></a> -<span class="sourceLineNo">926</span> master.getMasterProcedureExecutor().submitProcedure(createMergeProcedure(hriA, hriB));<a name="line.926"></a> -<span class="sourceLineNo">927</span><a name="line.927"></a> -<span class="sourceLineNo">928</span> // If the RS is < 2.0 throw an exception to abort the operation, we are handling the merge<a name="line.928"></a> -<span class="sourceLineNo">929</span> if (master.getServerManager().getVersionNumber(serverName) < 0x0200000) {<a name="line.929"></a> -<span class="sourceLineNo">930</span> throw new UnsupportedOperationException(String.format(<a name="line.930"></a> -<span class="sourceLineNo">931</span> "Merge not handled yet: regionState=%s merged=%s hriA=%s hriB=%s", state, merged, hriA,<a name="line.931"></a> -<span class="sourceLineNo">932</span> hriB));<a name="line.932"></a> -<span class="sourceLineNo">933</span> }<a name="line.933"></a> -<span class="sourceLineNo">934</span> }<a name="line.934"></a> -<span class="sourceLineNo">935</span><a name="line.935"></a> -<span class="sourceLineNo">936</span> // ============================================================================================<a name="line.936"></a> -<span class="sourceLineNo">937</span> // RS Status update (report online regions) helpers<a name="line.937"></a> -<span class="sourceLineNo">938</span> // ============================================================================================<a name="line.938"></a> -<span class="sourceLineNo">939</span> /**<a name="line.939"></a> -<span class="sourceLineNo">940</span> * the master will call this method when the RS send the regionServerReport().<a name="line.940"></a> -<span class="sourceLineNo">941</span> * the report will contains the "online regions".<a name="line.941"></a> -<span class="sourceLineNo">942</span> * this method will check the the online regions against the in-memory state of the AM,<a name="line.942"></a> -<span class="sourceLineNo">943</span> * if there is a mismatch we will try to fence out the RS with the assumption<a name="line.943"></a> -<span class="sourceLineNo">944</span> * that something went wrong on the RS side.<a name="line.944"></a> -<span class="sourceLineNo">945</span> */<a name="line.945"></a> -<span class="sourceLineNo">946</span> public void reportOnlineRegions(final ServerName serverName, final Set<byte[]> regionNames)<a name="line.946"></a> -<span class="sourceLineNo">947</span> throws YouAreDeadException {<a name="line.947"></a> -<span class="sourceLineNo">948</span> if (!isRunning()) return;<a name="line.948"></a> -<span class="sourceLineNo">949</span> if (LOG.isTraceEnabled()) {<a name="line.949"></a> -<span class="sourceLineNo">950</span> LOG.trace("ReportOnlineRegions " + serverName + " regionCount=" + regionNames.size() +<a name="line.950"></a> -<span class="sourceLineNo">951</span> ", metaLoaded=" + isMetaLoaded() + " " +<a name="line.951"></a> -<span class="sourceLineNo">952</span> regionNames.stream().map(element -> Bytes.toStringBinary(element)).<a name="line.952"></a> -<span class="sourceLineNo">953</span> collect(Collectors.toList()));<a name="line.953"></a> -<span class="sourceLineNo">954</span> }<a name="line.954"></a> -<span class="sourceLineNo">955</span><a name="line.955"></a> -<span class="sourceLineNo">956</span> final ServerStateNode serverNode = regionStates.getOrCreateServer(serverName);<a name="line.956"></a> -<span class="sourceLineNo">957</span><a name="line.957"></a> -<span class="sourceLineNo">958</span> synchronized (serverNode) {<a name="line.958"></a> -<span class="sourceLineNo">959</span> if (!serverNode.isInState(ServerState.ONLINE)) {<a name="line.959"></a> -<span class="sourceLineNo">960</span> LOG.warn("Got a report from a server result in state " + serverNode.getState());<a name="line.960"></a> -<span class="sourceLineNo">961</span> return;<a name="line.961"></a> -<span class="sourceLineNo">962</span> }<a name="line.962"></a> -<span class="sourceLineNo">963</span> }<a name="line.963"></a> -<span class="sourceLineNo">964</span><a name="line.964"></a> -<span class="sourceLineNo">965</span> if (regionNames.isEmpty()) {<a name="line.965"></a> -<span class="sourceLineNo">966</span> // nothing to do if we don't have regions<a name="line.966"></a> -<span class="sourceLineNo">967</span> LOG.trace("no online region found on " + serverName);<a name="line.967"></a> -<span class="sourceLineNo">968</span> } else if (!isMetaLoaded()) {<a name="line.968"></a> -<span class="sourceLineNo">969</span> // if we are still on startup, discard the report unless is from someone holding meta<a name="line.969"></a> -<span class="sourceLineNo">970</span> checkOnlineRegionsReportForMeta(serverNode, regionNames);<a name="line.970"></a> -<span class="sourceLineNo">971</span> } else {<a name="line.971"></a> -<span class="sourceLineNo">972</span> // The Heartbeat updates us of what regions are only. check and verify the state.<a name="line.972"></a> -<span class="sourceLineNo">973</span> checkOnlineRegionsReport(serverNode, regionNames);<a name="line.973"></a> -<span class="sourceLineNo">974</span> }<a name="line.974"></a> -<span class="sourceLineNo">975</span><a name="line.975"></a> -<span class="sourceLineNo">976</span> // wake report event<a name="line.976"></a> -<span class="sourceLineNo">977</span> wakeServerReportEvent(serverNode);<a name="line.977"></a> -<span class="sourceLineNo">978</span> }<a name="line.978"></a> -<span class="sourceLineNo">979</span><a name="line.979"></a> -<span class="sourceLineNo">980</span> void checkOnlineRegionsReportForMeta(ServerStateNode serverNode, Set<byte[]> regionNames) {<a name="line.980"></a> -<span class="sourceLineNo">981</span> try {<a name="line.981"></a> -<span class="sourceLineNo">982</span> for (byte[] regionName : regionNames) {<a name="line.982"></a> -<span class="sourceLineNo">983</span> final RegionInfo hri = getMetaRegionFromName(regionName);<a name="line.983"></a> -<span class="sourceLineNo">984</span> if (hri == null) {<a name="line.984"></a> -<span class="sourceLineNo">985</span> if (LOG.isTraceEnabled()) {<a name="line.985"></a> -<span class="sourceLineNo">986</span> LOG.trace("Skip online report for region=" + Bytes.toStringBinary(regionName) +<a name="line.986"></a> -<span class="sourceLineNo">987</span> " while meta is loading");<a name="line.987"></a> -<span class="sourceLineNo">988</span> }<a name="line.988"></a> -<span class="sourceLineNo">989</span> continue;<a name="line.989"></a> -<span class="sourceLineNo">990</span> }<a name="line.990"></a> -<span class="sourceLineNo">991</span><a name="line.991"></a> -<span class="sourceLineNo">992</span> RegionStateNode regionNode = regionStates.getOrCreateRegionStateNode(hri);<a name="line.992"></a> -<span class="sourceLineNo">993</span> LOG.info("META REPORTED: " + regionNode);<a name="line.993"></a> -<span class="sourceLineNo">994</span> regionNode.lock();<a name="line.994"></a> -<span class="sourceLineNo">995</span> try {<a name="line.995"></a> -<span class="sourceLineNo">996</span> if (!reportTransition(regionNode, serverNode, TransitionCode.OPENED, 0)) {<a name="line.996"></a> -<span class="sourceLineNo">997</span> LOG.warn("META REPORTED but no procedure found (complete?); set location=" +<a name="line.997"></a> -<span class="sourceLineNo">998</span> serverNode.getServerName());<a name="line.998"></a> -<span class="sourceLineNo">999</span> regionNode.setRegionLocation(serverNode.getServerName());<a name="line.999"></a> -<span class="sourceLineNo">1000</span> } else if (LOG.isTraceEnabled()) {<a name="line.1000"></a> -<span class="sourceLineNo">1001</span> LOG.trace("META REPORTED: " + regionNode);<a name="line.1001"></a> -<span class="sourceLineNo">1002</span> }<a name="line.1002"></a> -<span class="sourceLineNo">1003</span> } finally {<a name="line.1003"></a> -<span class="sourceLineNo">1004</span> regionNode.unlock();<a name="line.1004"></a> -<span class="sourceLineNo">1005</span> }<a name="line.1005"></a> -<span class="sourceLineNo">1006</span> }<a name="line.1006"></a> -<span class="sourceLineNo">1007</span> } catch (IOException e) {<a name="line.1007"></a> -<span class="sourceLineNo">1008</span> ServerName serverName = serverNode.getServerName();<a name="line.1008"></a> -<span class="sourceLineNo">1009</span> LOG.warn("KILLING " + serverName + ": " + e.getMessage());<a name="line.1009"></a> -<span class="sourceLineNo">1010</span> killRegionServer(serverNode);<a name="line.1010"></a> -<span class="sourceLineNo">1011</span> }<a name="line.1011"></a> -<span class="sourceLineNo">1012</span> }<a name="line.1012"></a> -<span class="sourceLineNo">1013</span><a name="line.1013"></a> -<span class="sourceLineNo">1014</span> void checkOnlineRegionsReport(final ServerStateNode serverNode, final Set<byte[]> regionNames)<a name="line.1014"></a> -<span class="sourceLineNo">1015</span> throws YouAreDeadException {<a name="line.1015"></a> -<span class="sourceLineNo">1016</span> final ServerName serverName = serverNode.getServerName();<a name="line.1016"></a> -<span class="sourceLineNo">1017</span> try {<a name="line.1017"></a> -<span class="sourceLineNo">1018</span> for (byte[] regionName: regionNames) {<a name="line.1018"></a> -<span class="sourceLineNo">1019</span> if (!isRunning()) {<a name="line.1019"></a> -<span class="sourceLineNo">1020</span> return;<a name="line.1020"></a> -<span class="sourceLineNo">1021</span> }<a name="line.1021"></a> -<span class="sourceLineNo">1022</span> final RegionStateNode regionNode = regionStates.getRegionStateNodeFromName(regionName);<a name="line.1022"></a> -<span class="sourceLineNo">1023</span> if (regionNode == null) {<a name="line.1023"></a> -<span class="sourceLineNo">1024</span> throw new UnexpectedStateException("Not online: " + Bytes.toStringBinary(regionName));<a name="line.1024"></a> -<span class="sourceLineNo">1025</span> }<a name="line.1025"></a> -<span class="sourceLineNo">1026</span> regionNode.lock();<a name="line.1026"></a> -<span class="sourceLineNo">1027</span> try {<a name="line.1027"></a> -<span class="sourceLineNo">1028</span> if (regionNode.isInState(State.OPENING, State.OPEN)) {<a name="line.1028"></a> -<span class="sourceLineNo">1029</span> if (!regionNode.getRegionLocation().equals(serverName)) {<a name="line.1029"></a> -<span class="sourceLineNo">1030</span> throw new UnexpectedStateException(regionNode.toString() +<a name="line.1030"></a> -<span class="sourceLineNo">1031</span> " reported OPEN on server=" + serverName +<a name="line.1031"></a> -<span class="sourceLineNo">1032</span> " but state has otherwise.");<a name="line.1032"></a> -<span class="sourceLineNo">1033</span> } else if (regionNode.isInState(State.OPENING)) {<a name="line.1033"></a> -<span class="sourceLineNo">1034</span> try {<a name="line.1034"></a> -<span class="sourceLineNo">1035</span> if (!reportTransition(regionNode, serverNode, TransitionCode.OPENED, 0)) {<a name="line.1035"></a> -<span class="sourceLineNo">1036</span> LOG.warn(regionNode.toString() + " reported OPEN on server=" + serverName +<a name="line.1036"></a> -<span class="sourceLineNo">1037</span> " but state has otherwise AND NO procedure is running");<a name="line.1037"></a> -<span class="sourceLineNo">1038</span> }<a name="line.1038"></a> -<span class="sourceLineNo">1039</span> } catch (UnexpectedStateException e) {<a name="line.1039"></a> -<span class="sourceLineNo">1040</span> LOG.warn(regionNode.toString() + " reported unexpteced OPEN: " + e.getMessage(), e);<a name="line.1040"></a> -<span class="sourceLineNo">1041</span> }<a name="line.1041"></a> -<span class="sourceLineNo">1042</span> }<a name="line.1042"></a> -<span class="sourceLineNo">1043</span> } else if (!regionNode.isInState(State.CLOSING, State.SPLITTING)) {<a name="line.1043"></a> -<span class="sourceLineNo">1044</span> long diff = regionNode.getLastUpdate() - EnvironmentEdgeManager.currentTime();<a name="line.1044"></a> -<span class="sourceLineNo">1045</span> if (diff > 1000/*One Second... make configurable if an issue*/) {<a name="line.1045"></a> -<span class="sourceLineNo">1046</span> // So, we can get report that a region is CLOSED or SPLIT because a heartbeat<a name="line.1046"></a> -<span class="sourceLineNo">1047</span> // came in at about same time as a region transition. Make sure there is some<a name="line.1047"></a> -<span class="sourceLineNo">1048</span> // elapsed time between killing remote server.<a name="line.1048"></a> -<span class="sourceLineNo">1049</span> throw new UnexpectedStateException(regionNode.toString() +<a name="line.1049"></a> -<span class="sourceLineNo">1050</span> " reported an unexpected OPEN; time since last update=" + diff);<a name="line.1050"></a> -<span class="sourceLineNo">1051</span> }<a name="line.1051"></a> -<span class="sourceLineNo">1052</span> }<a name="line.1052"></a> -<span class="sourceLineNo">1053</span> } finally {<a name="line.1053"></a> -<span class="sourceLineNo">1054</span> regionNode.unlock();<a name="line.1054"></a> -<span class="sourceLineNo">1055</span> }<a name="line.1055"></a> -<span class="sourceLineNo">1056</span> }<a name="line.1056"></a> -<span class="sourceLineNo">1057</span> } catch (IOException e) {<a name="line.1057"></a> -<span class="sourceLineNo">1058</span> LOG.warn("Killing " + serverName + ": " + e.getMessage());<a name="line.1058"></a> -<span class="sourceLineNo">1059</span> killRegionServer(serverNode);<a name="line.1059"></a> -<span class="sourceLineNo">1060</span> throw (YouAreDeadException)new YouAreDeadException(e.getMessage()).initCause(e);<a name="line.1060"></a> -<span class="sourceLineNo">1061</span> }<a name="line.1061"></a> -<span class="sourceLineNo">1062</span> }<a name="line.1062"></a> -<span class="sourceLineNo">1063</span><a name="line.1063"></a> -<span class="sourceLineNo">1064</span> protected boolean waitServerReportEvent(ServerName serverName, Procedure<?> proc) {<a name="line.1064"></a> -<span class="sourceLineNo">1065</span> final ServerStateNode serverNode = regionStates.getOrCreateServer(serverName);<a name="line.1065"></a> -<span class="sourceLineNo">1066</span> if (serverNode == null) {<a name="line.1066"></a> -<span class="sourceLineNo">1067</span> LOG.warn("serverName=null; {}", proc);<a name="line.1067"></a> -<span class="sourceLineNo">1068</span> }<a name="line.1068"></a> -<span class="sourceLineNo">1069</span> return serverNode.getReportEvent().suspendIfNotReady(proc);<a name="line.1069"></a> -<span class="sourceLineNo">1070</span> }<a name="line.1070"></a> -<span class="sourceLineNo">1071</span><a name="line.1071"></a> -<span class="sourceLineNo">1072</span> protected void wakeServerReportEvent(final ServerStateNode serverNode) {<a name="line.1072"></a> -<span class="sourceLineNo">1073</span> serverNode.getReportEvent().wake(getProcedureScheduler());<a name="line.1073"></a> -<span class="sourceLineNo">1074</span> }<a name="line.1074"></a> -<span class="sourceLineNo">1075</span><a name="line.1075"></a> -<span class="sourceLineNo">1076</span> // ============================================================================================<a name="line.1076"></a> -<span class="sourceLineNo">1077</span> // RIT chore<a name="line.1077"></a> -<span class="sourceLineNo">1078</span> // ============================================================================================<a name="line.1078"></a> -<span class="sourceLineNo">1079</span> private static class RegionInTransitionChore extends ProcedureInMemoryChore<MasterProcedureEnv> {<a name="line.1079"></a> -<span class="sourceLineNo">1080</span> public RegionInTransitionChore(final int timeoutMsec) {<a name="line.1080"></a> -<span class="sourceLineNo">1081</span> super(timeoutMsec);<a name="line.1081"></a> -<span class="sourceLineNo">1082</span> }<a name="line.1082"></a> -<span class="sourceLineNo">1083</span><a name="line.1083"></a> -<span class="sourceLineNo">1084</span> @Override<a name="line.1084"></a> -<span class="sourceLineNo">1085</span> protected void periodicExecute(final MasterProcedureEnv env) {<a name="line.1085"></a> -<span class="sourceLineNo">1086</span> final AssignmentManager am = env.getAssignmentManager();<a name="line.1086"></a> -<span class="sourceLineNo">1087</span><a name="line.1087"></a> -<span class="sourceLineNo">1088</span> final RegionInTransitionStat ritStat = am.computeRegionInTransitionStat();<a name="line.1088"></a> -<span class="sourceLineNo">1089</span> if (ritStat.hasRegionsOverThreshold()) {<a name="line.1089"></a> -<span class="sourceLineNo">1090</span> for (RegionState hri: ritStat.getRegionOverThreshold()) {<a name="line.1090"></a> -<span class="sourceLineNo">1091</span> am.handleRegionOverStuckWarningThreshold(hri.getRegion());<a name="line.1091"></a> -<span class="sourceLineNo">1092</span> }<a name="line.1092"></a> -<span class="sourceLineNo">1093</span> }<a name="line.1093"></a> -<span class="sourceLineNo">1094</span><a name="line.1094"></a> -<span class="sourceLineNo">1095</span> // update metrics<a name="line.1095"></a> -<span class="sourceLineNo">1096</span> am.updateRegionsInTransitionMetrics(ritStat);<a name="line.1096"></a> -<span class="sourceLineNo">1097</span> }<a name="line.1097"></a> -<span class="sourceLineNo">1098</span> }<a name="line.1098"></a> -<span class="sourceLineNo">1099</span><a name="line.1099"></a> -<span class="sourceLineNo">1100</span> public RegionInTransitionStat computeRegionInTransitionStat() {<a name="line.1100"></a> -<span class="sourceLineNo">1101</span> final RegionInTransitionStat rit = new RegionInTransitionStat(getConfiguration());<a name="line.1101"></a> -<span class="sourceLineNo">1102</span> rit.update(this);<a name="line.1102"></a> -<span class="sourceLineNo">1103</span> return rit;<a name="line.1103"></a> -<span class="sourceLineNo">1104</span> }<a name="line.1104"></a> -<span class="sourceLineNo">1105</span><a name="line.1105"></a> -<span class="sourceLineNo">1106</span> public static class RegionInTransitionStat {<a name="line.1106"></a> -<span class="sourceLineNo">1107</span> private final int ritThreshold;<a name="line.1107"></a> +<span class="sourceLineNo">702</span> * If no target server, at assign time, we will try to use the former location of the region if<a name="line.702"></a> +<span class="sourceLineNo">703</span> * one exists. This is how we 'retain' the old location across a server restart.<a name="line.703"></a> +<span class="sourceLineNo">704</span> * <p/><a name="line.704"></a> +<span class="sourceLineNo">705</span> * Should only be called when you can make sure that no one can touch these regions other than<a name="line.705"></a> +<span class="sourceLineNo">706</span> * you. For example, when you are creating table.<a name="line.706"></a> +<span class="sourceLineNo">707</span> */<a name="line.707"></a> +<span class="sourceLineNo">708</span> public TransitRegionStateProcedure[] createAssignProcedures(List<RegionInfo> hris) {<a name="line.708"></a> +<span class="sourceLineNo">709</span> return hris.stream().map(hri -> regionStates.getOrCreateRegionStateNode(hri))<a name="line.709"></a> +<span class="sourceLineNo">710</span> .map(regionNode -> createAssignProcedure(regionNode, null)).sorted(AssignmentManager::compare)<a name="line.710"></a> +<span class="sourceLineNo">711</span> .toArray(TransitRegionStateProcedure[]::new);<a name="line.711"></a> +<span class="sourceLineNo">712</span> }<a name="line.712"></a> +<span class="sourceLineNo">713</span><a name="line.713"></a> +<span class="sourceLineNo">714</span> /**<a name="line.714"></a> +<span class="sourceLineNo">715</span> * @param assignments Map of assignments from which we produce an array of AssignProcedures.<a name="line.715"></a> +<span class="sourceLineNo">716</span> * @return Assignments made from the passed in <code>assignments</code><a name="line.716"></a> +<span class="sourceLineNo">717</span> */<a name="line.717"></a> +<span class="sourceLineNo">718</span> private TransitRegionStateProcedure[] createAssignProcedures(<a name="line.718"></a> +<span class="sourceLineNo">719</span> Map<ServerName, List<RegionInfo>> assignments) {<a name="line.719"></a> +<span class="sourceLineNo">720</span> return assignments.entrySet().stream()<a name="line.720"></a> +<span class="sourceLineNo">721</span> .flatMap(e -> e.getValue().stream().map(hri -> regionStates.getOrCreateRegionStateNode(hri))<a name="line.721"></a> +<span class="sourceLineNo">722</span> .map(regionNode -> createAssignProcedure(regionNode, e.getKey())))<a name="line.722"></a> +<span class="sourceLineNo">723</span> .sorted(AssignmentManager::compare).toArray(TransitRegionStateProcedure[]::new);<a name="line.723"></a> +<span class="sourceLineNo">724</span> }<a name="line.724"></a> +<span class="sourceLineNo">725</span><a name="line.725"></a> +<span class="sourceLineNo">726</span> /**<a name="line.726"></a> +<span class="sourceLineNo">727</span> * Called by DisableTableProcedure to unassign all the regions for a table.<a name="line.727"></a> +<span class="sourceLineNo">728</span> */<a name="line.728"></a> +<span class="sourceLineNo">729</span> public TransitRegionStateProcedure[] createUnassignProceduresForDisabling(TableName tableName) {<a name="line.729"></a> +<span class="sourceLineNo">730</span> return regionStates.getTableRegionStateNodes(tableName).stream().map(regionNode -> {<a name="line.730"></a> +<span class="sourceLineNo">731</span> regionNode.lock();<a name="line.731"></a> +<span class="sourceLineNo">732</span> try {<a name="line.732"></a> +<span class="sourceLineNo">733</span> if (!regionStates.include(regionNode, false) ||<a name="line.733"></a> +<span class="sourceLineNo">734</span> regionStates.isRegionOffline(regionNode.getRegionInfo())) {<a name="line.734"></a> +<span class="sourceLineNo">735</span> return null;<a name="line.735"></a> +<span class="sourceLineNo">736</span> }<a name="line.736"></a> +<span class="sourceLineNo">737</span> // As in DisableTableProcedure, we will hold the xlock for table, so we can make sure that<a name="line.737"></a> +<span class="sourceLineNo">738</span> // this procedure has not been executed yet, as TRSP will hold the shared lock for table all<a name="line.738"></a> +<span class="sourceLineNo">739</span> // the time. So here we will unset it and when it is actually executed, it will find that<a name="line.739"></a> +<span class="sourceLineNo">740</span> // the attach procedure is not itself and quit immediately.<a name="line.740"></a> +<span class="sourceLineNo">741</span> if (regionNode.getProcedure() != null) {<a name="line.741"></a> +<span class="sourceLineNo">742</span> regionNode.unsetProcedure(regionNode.getProcedure());<a name="line.742"></a> +<span class="sourceLineNo">743</span> }<a name="line.743"></a> +<span class="sourceLineNo">744</span> TransitRegionStateProcedure proc = TransitRegionStateProcedure<a name="line.744"></a> +<span class="sourceLineNo">745</span> .unassign(getProcedureEnvironment(), regionNode.getRegionInfo());<a name="line.745"></a> +<span class="sourceLineNo">746</span> regionNode.setProcedure(proc);<a name="line.746"></a> +<span class="sourceLineNo">747</span> return proc;<a name="line.747"></a> +<span class="sourceLineNo">748</span> } finally {<a name="line.748"></a> +<span class="sourceLineNo">749</span> regionNode.unlock();<a name="line.749"></a> +<span class="sourceLineNo">750</span> }<a name="line.750"></a> +<span class="sourceLineNo">751</span> }).filter(p -> p != null).toArray(TransitRegionStateProcedure[]::new);<a name="line.751"></a> +<span class="sourceLineNo">752</span> }<a name="line.752"></a> +<span class="sourceLineNo">753</span><a name="line.753"></a> +<span class="sourceLineNo">754</span> public SplitTableRegionProcedure createSplitProcedure(final RegionInfo regionToSplit,<a name="line.754"></a> +<span class="sourceLineNo">755</span> final byte[] splitKey) throws IOException {<a name="line.755"></a> +<span class="sourceLineNo">756</span> return new SplitTableRegionProcedure(getProcedureEnvironment(), regionToSplit, splitKey);<a name="line.756"></a> +<span class="sourceLineNo">757</span> }<a name="line.757"></a> +<span class="sourceLineNo">758</span><a name="line.758"></a> +<span class="sourceLineNo">759</span> public MergeTableRegionsProcedure createMergeProcedure(final RegionInfo regionToMergeA,<a name="line.759"></a> +<span class="sourceLineNo">760</span> final RegionInfo regionToMergeB) throws IOException {<a name="line.760"></a> +<span class="sourceLineNo">761</span> return new MergeTableRegionsProcedure(getProcedureEnvironment(), regionToMergeA,regionToMergeB);<a name="line.761"></a> +<span class="sourceLineNo">762</span> }<a name="line.762"></a> +<span class="sourceLineNo">763</span><a name="line.763"></a> +<span class="sourceLineNo">764</span> /**<a name="line.764"></a> +<span class="sourceLineNo">765</span> * Delete the region states. This is called by "DeleteTable"<a name="line.765"></a> +<span class="sourceLineNo">766</span> */<a name="line.766"></a> +<span class="sourceLineNo">767</span> public void deleteTable(final TableName tableName) throws IOException {<a name="line.767"></a> +<span class="sourceLineNo">768</span> final ArrayList<RegionInfo> regions = regionStates.getTableRegionsInfo(tableName);<a name="line.768"></a> +<span class="sourceLineNo">769</span> regionStateStore.deleteRegions(regions);<a name="line.769"></a> +<span class="sourceLineNo">770</span> for (int i = 0; i < regions.size(); ++i) {<a name="line.770"></a> +<span class="sourceLineNo">771</span> final RegionInfo regionInfo = regions.get(i);<a name="line.771"></a> +<span class="sourceLineNo">772</span> // we expect the region to be offline<a name="line.772"></a> +<span class="sourceLineNo">773</span> regionStates.removeFromOfflineRegions(regionInfo);<a name="line.773"></a> +<span class="sourceLineNo">774</span> regionStates.deleteRegion(regionInfo);<a name="line.774"></a> +<span class="sourceLineNo">775</span> }<a name="line.775"></a> +<span class="sourceLineNo">776</span> }<a name="line.776"></a> +<span class="sourceLineNo">777</span><a name="line.777"></a> +<span class="sourceLineNo">778</span> // ============================================================================================<a name="line.778"></a> +<span class="sourceLineNo">779</span> // RS Region Transition Report helpers<a name="line.779"></a> +<span class="sourceLineNo">780</span> // ============================================================================================<a name="line.780"></a> +<span class="sourceLineNo">781</span> // TODO: Move this code in MasterRpcServices and call on specific event?<a name="line.781"></a> +<span class="sourceLineNo">782</span> public ReportRegionStateTransitionResponse reportRegionStateTransition(<a name="line.782"></a> +<span class="sourceLineNo">783</span> final ReportRegionStateTransitionRequest req) throws PleaseHoldException {<a name="line.783"></a> +<span class="sourceLineNo">784</span> final ReportRegionStateTransitionResponse.Builder builder =<a name="line.784"></a> +<span class="sourceLineNo">785</span> ReportRegionStateTransitionResponse.newBuilder();<a name="line.785"></a> +<span class="sourceLineNo">786</span> final ServerName serverName = ProtobufUtil.toServerName(req.getServer());<a name="line.786"></a> +<span class="sourceLineNo">787</span> try {<a name="line.787"></a> +<span class="sourceLineNo">788</span> for (RegionStateTransition transition: req.getTransitionList()) {<a name="line.788"></a> +<span class="sourceLineNo">789</span> switch (transition.getTransitionCode()) {<a name="line.789"></a> +<span class="sourceLineNo">790</span> case OPENED:<a name="line.790"></a> +<span class="sourceLineNo">791</span> case FAILED_OPEN:<a name="line.791"></a> +<span class="sourceLineNo">792</span> case CLOSED:<a name="line.792"></a> +<span class="sourceLineNo">793</span> assert transition.getRegionInfoCount() == 1 : transition;<a name="line.793"></a> +<span class="sourceLineNo">794</span> final RegionInfo hri = ProtobufUtil.toRegionInfo(transition.getRegionInfo(0));<a name="line.794"></a> +<span class="sourceLineNo">795</span> updateRegionTransition(serverName, transition.getTransitionCode(), hri,<a name="line.795"></a> +<span class="sourceLineNo">796</span> transition.hasOpenSeqNum() ? transition.getOpenSeqNum() : HConstants.NO_SEQNUM);<a name="line.796"></a> +<span class="sourceLineNo">797</span> break;<a name="line.797"></a> +<span class="sourceLineNo">798</span> case READY_TO_SPLIT:<a name="line.798"></a> +<span class="sourceLineNo">799</span> case SPLIT:<a name="line.799"></a> +<span class="sourceLineNo">800</span> case SPLIT_REVERTED:<a name="line.800"></a> +<span class="sourceLineNo">801</span> assert transition.getRegionInfoCount() == 3 : transition;<a name="line.801"></a> +<span class="sourceLineNo">802</span> final RegionInfo parent = ProtobufUtil.toRegionInfo(transition.getRegionInfo(0));<a name="line.802"></a> +<span class="sourceLineNo">803</span> final RegionInfo splitA = ProtobufUtil.toRegionInfo(transition.getRegionInfo(1));<a name="line.803"></a> +<span class="sourceLineNo">804</span> final RegionInfo splitB = ProtobufUtil.toRegionInfo(transition.getRegionInfo(2));<a name="line.804"></a> +<span class="sourceLineNo">805</span> updateRegionSplitTransition(serverName, transition.getTransitionCode(),<a name="line.805"></a> +<span class="sourceLineNo">806</span> parent, splitA, splitB);<a name="line.806"></a> +<span class="sourceLineNo">807</span> break;<a name="line.807"></a> +<span class="sourceLineNo">808</span> case READY_TO_MERGE:<a name="line.808"></a> +<span class="sourceLineNo">809</span> case MERGED:<a name="line.809"></a> +<span class="sourceLineNo">810</span> case MERGE_REVERTED:<a name="line.810"></a> +<span class="sourceLineNo">811</span> assert transition.getRegionInfoCount() == 3 : transition;<a name="line.811"></a> +<span class="sourceLineNo">812</span> final RegionInfo merged = ProtobufUtil.toRegionInfo(transition.getRegionInfo(0));<a name="line.812"></a> +<span class="sourceLineNo">813</span> final
<TRUNCATED>
