http://git-wip-us.apache.org/repos/asf/hbase-site/blob/0383a9c2/devapidocs/src-html/org/apache/hadoop/hbase/master/ServerManager.html ---------------------------------------------------------------------- diff --git a/devapidocs/src-html/org/apache/hadoop/hbase/master/ServerManager.html b/devapidocs/src-html/org/apache/hadoop/hbase/master/ServerManager.html index 15fec0a..d30e78b 100644 --- a/devapidocs/src-html/org/apache/hadoop/hbase/master/ServerManager.html +++ b/devapidocs/src-html/org/apache/hadoop/hbase/master/ServerManager.html @@ -630,684 +630,653 @@ <span class="sourceLineNo">622</span> }<a name="line.622"></a> <span class="sourceLineNo">623</span> }<a name="line.623"></a> <span class="sourceLineNo">624</span><a name="line.624"></a> -<span class="sourceLineNo">625</span> /**<a name="line.625"></a> -<span class="sourceLineNo">626</span> * Sends an MERGE REGIONS RPC to the specified server to merge the specified<a name="line.626"></a> -<span class="sourceLineNo">627</span> * regions.<a name="line.627"></a> -<span class="sourceLineNo">628</span> * <p><a name="line.628"></a> -<span class="sourceLineNo">629</span> * A region server could reject the close request because it either does not<a name="line.629"></a> -<span class="sourceLineNo">630</span> * have the specified region.<a name="line.630"></a> -<span class="sourceLineNo">631</span> * @param server server to merge regions<a name="line.631"></a> -<span class="sourceLineNo">632</span> * @param region_a region to merge<a name="line.632"></a> -<span class="sourceLineNo">633</span> * @param region_b region to merge<a name="line.633"></a> -<span class="sourceLineNo">634</span> * @param forcible true if do a compulsory merge, otherwise we will only merge<a name="line.634"></a> -<span class="sourceLineNo">635</span> * two adjacent regions<a name="line.635"></a> -<span class="sourceLineNo">636</span> * @throws IOException<a name="line.636"></a> -<span class="sourceLineNo">637</span> */<a name="line.637"></a> -<span class="sourceLineNo">638</span> public void sendRegionsMerge(ServerName server, HRegionInfo region_a,<a name="line.638"></a> -<span class="sourceLineNo">639</span> HRegionInfo region_b, boolean forcible, final User user) throws IOException {<a name="line.639"></a> -<span class="sourceLineNo">640</span> if (server == null)<a name="line.640"></a> -<span class="sourceLineNo">641</span> throw new NullPointerException("Passed server is null");<a name="line.641"></a> -<span class="sourceLineNo">642</span> if (region_a == null || region_b == null)<a name="line.642"></a> -<span class="sourceLineNo">643</span> throw new NullPointerException("Passed region is null");<a name="line.643"></a> -<span class="sourceLineNo">644</span> AdminService.BlockingInterface admin = getRsAdmin(server);<a name="line.644"></a> -<span class="sourceLineNo">645</span> if (admin == null) {<a name="line.645"></a> -<span class="sourceLineNo">646</span> throw new IOException("Attempting to send MERGE REGIONS RPC to server "<a name="line.646"></a> -<span class="sourceLineNo">647</span> + server.toString() + " for region "<a name="line.647"></a> -<span class="sourceLineNo">648</span> + region_a.getRegionNameAsString() + ","<a name="line.648"></a> -<span class="sourceLineNo">649</span> + region_b.getRegionNameAsString()<a name="line.649"></a> -<span class="sourceLineNo">650</span> + " failed because no RPC connection found to this server");<a name="line.650"></a> -<span class="sourceLineNo">651</span> }<a name="line.651"></a> -<span class="sourceLineNo">652</span> HBaseRpcController controller = newRpcController();<a name="line.652"></a> -<span class="sourceLineNo">653</span> ProtobufUtil.mergeRegions(controller, admin, region_a, region_b, forcible, user);<a name="line.653"></a> -<span class="sourceLineNo">654</span> }<a name="line.654"></a> -<span class="sourceLineNo">655</span><a name="line.655"></a> -<span class="sourceLineNo">656</span> @VisibleForTesting<a name="line.656"></a> -<span class="sourceLineNo">657</span> public void moveFromOnlineToDeadServers(final ServerName sn) {<a name="line.657"></a> -<span class="sourceLineNo">658</span> synchronized (onlineServers) {<a name="line.658"></a> -<span class="sourceLineNo">659</span> if (!this.onlineServers.containsKey(sn)) {<a name="line.659"></a> -<span class="sourceLineNo">660</span> LOG.warn("Expiration of " + sn + " but server not online");<a name="line.660"></a> -<span class="sourceLineNo">661</span> }<a name="line.661"></a> -<span class="sourceLineNo">662</span> // Remove the server from the known servers lists and update load info BUT<a name="line.662"></a> -<span class="sourceLineNo">663</span> // add to deadservers first; 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ServerName is of the form:<a name="line.689"></a> +<span class="sourceLineNo">690</span> // <hostname> , <port> , <startcode><a name="line.690"></a> +<span class="sourceLineNo">691</span><a name="line.691"></a> +<span class="sourceLineNo">692</span> if (!this.isServerOnline(sn)) {<a name="line.692"></a> +<span class="sourceLineNo">693</span> LOG.warn("Server " + sn + " is not currently online. " +<a name="line.693"></a> +<span class="sourceLineNo">694</span> "Removing from draining list anyway, as requested.");<a name="line.694"></a> +<span class="sourceLineNo">695</span> }<a name="line.695"></a> +<span class="sourceLineNo">696</span> // Remove the server from the draining servers lists.<a name="line.696"></a> +<span class="sourceLineNo">697</span> return this.drainingServers.remove(sn);<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> /*<a name="line.700"></a> +<span class="sourceLineNo">701</span> * Add the server to the drain list.<a name="line.701"></a> +<span class="sourceLineNo">702</span> */<a name="line.702"></a> +<span class="sourceLineNo">703</span> public boolean addServerToDrainList(final ServerName sn) {<a name="line.703"></a> +<span class="sourceLineNo">704</span> // Warn if the server (sn) is not online. 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" +<a name="line.708"></a> +<span class="sourceLineNo">709</span> "Ignoring request to add it to draining list.");<a name="line.709"></a> +<span class="sourceLineNo">710</span> return false;<a name="line.710"></a> +<span class="sourceLineNo">711</span> }<a name="line.711"></a> +<span class="sourceLineNo">712</span> // Add the server to the draining servers lists, if it's not already in<a name="line.712"></a> +<span class="sourceLineNo">713</span> // it.<a name="line.713"></a> +<span class="sourceLineNo">714</span> if (this.drainingServers.contains(sn)) {<a name="line.714"></a> +<span class="sourceLineNo">715</span> LOG.warn("Server " + sn + " is already in the draining server list." +<a name="line.715"></a> +<span class="sourceLineNo">716</span> "Ignoring request to add it again.");<a name="line.716"></a> +<span class="sourceLineNo">717</span> return false;<a name="line.717"></a> +<span class="sourceLineNo">718</span> }<a name="line.718"></a> +<span class="sourceLineNo">719</span> LOG.info("Server " + sn + " added to draining server list.");<a name="line.719"></a> +<span class="sourceLineNo">720</span> return this.drainingServers.add(sn);<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> if (!this.isServerOnline(sn)) {<a name="line.723"></a> -<span class="sourceLineNo">724</span> LOG.warn("Server " + sn + " is not currently online. 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" +<a name="line.739"></a> -<span class="sourceLineNo">740</span> "Ignoring request to add it to draining list.");<a name="line.740"></a> -<span class="sourceLineNo">741</span> return false;<a name="line.741"></a> -<span class="sourceLineNo">742</span> }<a name="line.742"></a> -<span class="sourceLineNo">743</span> // Add the server to the draining servers lists, if it's not already in<a name="line.743"></a> -<span class="sourceLineNo">744</span> // it.<a name="line.744"></a> -<span class="sourceLineNo">745</span> if (this.drainingServers.contains(sn)) {<a name="line.745"></a> -<span class="sourceLineNo">746</span> LOG.warn("Server " + sn + " is already in the draining server list." +<a name="line.746"></a> -<span class="sourceLineNo">747</span> "Ignoring request to add it again.");<a name="line.747"></a> -<span class="sourceLineNo">748</span> return false;<a name="line.748"></a> -<span class="sourceLineNo">749</span> }<a name="line.749"></a> -<span class="sourceLineNo">750</span> LOG.info("Server " + sn + " added to draining server list.");<a name="line.750"></a> -<span class="sourceLineNo">751</span> return this.drainingServers.add(sn);<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> // RPC methods to region servers<a name="line.754"></a> -<span class="sourceLineNo">755</span><a name="line.755"></a> -<span class="sourceLineNo">756</span> /**<a name="line.756"></a> -<span class="sourceLineNo">757</span> * Sends an OPEN RPC to the specified server to open the specified region.<a name="line.757"></a> -<span class="sourceLineNo">758</span> * <p><a name="line.758"></a> -<span class="sourceLineNo">759</span> * Open should not fail but can if server just crashed.<a name="line.759"></a> -<span class="sourceLineNo">760</span> * <p><a name="line.760"></a> -<span class="sourceLineNo">761</span> * @param server server to open a region<a name="line.761"></a> -<span class="sourceLineNo">762</span> * @param region region to open<a name="line.762"></a> -<span class="sourceLineNo">763</span> * @param favoredNodes<a name="line.763"></a> -<span class="sourceLineNo">764</span> */<a name="line.764"></a> -<span class="sourceLineNo">765</span> public RegionOpeningState sendRegionOpen(final ServerName server,<a name="line.765"></a> -<span class="sourceLineNo">766</span> HRegionInfo region, List<ServerName> favoredNodes)<a name="line.766"></a> -<span class="sourceLineNo">767</span> throws IOException {<a name="line.767"></a> -<span class="sourceLineNo">768</span> AdminService.BlockingInterface admin = getRsAdmin(server);<a name="line.768"></a> -<span class="sourceLineNo">769</span> if (admin == null) {<a name="line.769"></a> -<span class="sourceLineNo">770</span> throw new IOException("Attempting to send OPEN RPC to server " + server.toString() +<a name="line.770"></a> -<span class="sourceLineNo">771</span> " failed because no RPC connection found to this server");<a name="line.771"></a> -<span class="sourceLineNo">772</span> }<a name="line.772"></a> -<span class="sourceLineNo">773</span> OpenRegionRequest request =<a name="line.773"></a> -<span class="sourceLineNo">774</span> RequestConverter.buildOpenRegionRequest(server, region, favoredNodes, false);<a name="line.774"></a> -<span class="sourceLineNo">775</span> try {<a name="line.775"></a> -<span class="sourceLineNo">776</span> OpenRegionResponse response = admin.openRegion(null, request);<a name="line.776"></a> -<span class="sourceLineNo">777</span> return ResponseConverter.getRegionOpeningState(response);<a name="line.777"></a> -<span class="sourceLineNo">778</span> } catch (ServiceException se) {<a name="line.778"></a> -<span class="sourceLineNo">779</span> checkForRSznode(server, se);<a name="line.779"></a> -<span class="sourceLineNo">780</span> throw ProtobufUtil.getRemoteException(se);<a name="line.780"></a> -<span class="sourceLineNo">781</span> }<a name="line.781"></a> -<span class="sourceLineNo">782</span> }<a name="line.782"></a> -<span class="sourceLineNo">783</span><a name="line.783"></a> -<span class="sourceLineNo">784</span> /**<a name="line.784"></a> -<span class="sourceLineNo">785</span> * Check for an odd state, where we think an RS is up but it is not. 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Do it on OPEN.<a name="line.754"></a> +<span class="sourceLineNo">755</span> * This is only case where the check makes sense.<a name="line.755"></a> +<span class="sourceLineNo">756</span> *<a name="line.756"></a> +<span class="sourceLineNo">757</span> * <p>We are checking for instance of HBASE-9593 where a RS registered but died before it put<a name="line.757"></a> +<span class="sourceLineNo">758</span> * up its znode in zk. In this case, the RS made it into the list of online servers but it<a name="line.758"></a> +<span class="sourceLineNo">759</span> * is not actually UP. 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checkForRSznode(server, se);<a name="line.831"></a> +<span class="sourceLineNo">832</span> throw ProtobufUtil.getRemoteException(se);<a name="line.832"></a> +<span class="sourceLineNo">833</span> }<a name="line.833"></a> +<span class="sourceLineNo">834</span> }<a name="line.834"></a> +<span class="sourceLineNo">835</span><a name="line.835"></a> +<span class="sourceLineNo">836</span> private HBaseRpcController newRpcController() {<a name="line.836"></a> +<span class="sourceLineNo">837</span> return rpcControllerFactory == null ? null : rpcControllerFactory.newController();<a name="line.837"></a> +<span class="sourceLineNo">838</span> }<a name="line.838"></a> +<span class="sourceLineNo">839</span><a name="line.839"></a> +<span class="sourceLineNo">840</span> /**<a name="line.840"></a> +<span class="sourceLineNo">841</span> * Sends an CLOSE RPC to the specified server to close the specified region.<a name="line.841"></a> <span class="sourceLineNo">842</span> * <p><a name="line.842"></a> 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checkForRSznode(server, se);<a name="line.862"></a> -<span class="sourceLineNo">863</span> throw ProtobufUtil.getRemoteException(se);<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 HBaseRpcController newRpcController() {<a name="line.867"></a> -<span class="sourceLineNo">868</span> return rpcControllerFactory == null ? null : rpcControllerFactory.newController();<a name="line.868"></a> -<span class="sourceLineNo">869</span> }<a name="line.869"></a> -<span class="sourceLineNo">870</span><a name="line.870"></a> -<span class="sourceLineNo">871</span> /**<a name="line.871"></a> -<span class="sourceLineNo">872</span> * Sends an CLOSE RPC to the specified server to close the specified region.<a name="line.872"></a> -<span class="sourceLineNo">873</span> * <p><a name="line.873"></a> -<span class="sourceLineNo">874</span> * A region server could reject the close request because it either does not<a name="line.874"></a> -<span class="sourceLineNo">875</span> * have the specified region or the region is being split.<a name="line.875"></a> -<span class="sourceLineNo">876</span> * @param server server to open a region<a name="line.876"></a> -<span class="sourceLineNo">877</span> * @param region region to open<a name="line.877"></a> -<span class="sourceLineNo">878</span> * @param dest - if the region is moved to another server, the destination server. null otherwise.<a name="line.878"></a> -<span class="sourceLineNo">879</span> * @throws IOException<a name="line.879"></a> -<span class="sourceLineNo">880</span> */<a name="line.880"></a> -<span class="sourceLineNo">881</span> public boolean sendRegionClose(ServerName server, HRegionInfo region,<a name="line.881"></a> -<span class="sourceLineNo">882</span> ServerName dest) throws IOException {<a name="line.882"></a> -<span class="sourceLineNo">883</span> if (server == null) throw new NullPointerException("Passed server is null");<a name="line.883"></a> -<span class="sourceLineNo">884</span> AdminService.BlockingInterface admin = getRsAdmin(server);<a name="line.884"></a> -<span class="sourceLineNo">885</span> if (admin == null) {<a name="line.885"></a> -<span class="sourceLineNo">886</span> throw new IOException("Attempting to send CLOSE RPC to server " +<a name="line.886"></a> -<span class="sourceLineNo">887</span> server.toString() + " for region " +<a name="line.887"></a> -<span class="sourceLineNo">888</span> region.getRegionNameAsString() +<a name="line.888"></a> -<span class="sourceLineNo">889</span> " failed because no RPC connection found to this server");<a name="line.889"></a> -<span class="sourceLineNo">890</span> }<a name="line.890"></a> -<span class="sourceLineNo">891</span> HBaseRpcController controller = newRpcController();<a name="line.891"></a> -<span class="sourceLineNo">892</span> 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region. 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dest) throws IOException {<a name="line.851"></a> +<span class="sourceLineNo">852</span> if (server == null) throw new NullPointerException("Passed server is null");<a name="line.852"></a> +<span class="sourceLineNo">853</span> AdminService.BlockingInterface admin = getRsAdmin(server);<a name="line.853"></a> +<span class="sourceLineNo">854</span> if (admin == null) {<a name="line.854"></a> +<span class="sourceLineNo">855</span> throw new IOException("Attempting to send CLOSE RPC to server " +<a name="line.855"></a> +<span class="sourceLineNo">856</span> server.toString() + " for region " +<a name="line.856"></a> +<span class="sourceLineNo">857</span> region.getRegionNameAsString() +<a name="line.857"></a> +<span class="sourceLineNo">858</span> " failed because no RPC connection found to this server");<a name="line.858"></a> +<span class="sourceLineNo">859</span> }<a name="line.859"></a> +<span class="sourceLineNo">860</span> HBaseRpcController controller = newRpcController();<a name="line.860"></a> +<span class="sourceLineNo">861</span> return ProtobufUtil.closeRegion(controller, admin, server, region.getRegionName(), dest);<a name="line.861"></a> +<span class="sourceLineNo">862</span> }<a name="line.862"></a> +<span class="sourceLineNo">863</span><a name="line.863"></a> +<span class="sourceLineNo">864</span> public boolean sendRegionClose(ServerName server,<a name="line.864"></a> +<span class="sourceLineNo">865</span> HRegionInfo region) throws IOException {<a name="line.865"></a> +<span class="sourceLineNo">866</span> return sendRegionClose(server, region, null);<a name="line.866"></a> +<span class="sourceLineNo">867</span> }<a name="line.867"></a> +<span class="sourceLineNo">868</span><a name="line.868"></a> +<span class="sourceLineNo">869</span> /**<a name="line.869"></a> +<span class="sourceLineNo">870</span> * Sends a WARMUP RPC to the specified server to warmup the specified region.<a name="line.870"></a> +<span class="sourceLineNo">871</span> * <p><a name="line.871"></a> +<span class="sourceLineNo">872</span> * A region server could reject the close request because it either does not<a name="line.872"></a> +<span class="sourceLineNo">873</span> * have the specified region or the region is being split.<a name="line.873"></a> +<span class="sourceLineNo">874</span> * @param server server to warmup a region<a name="line.874"></a> +<span class="sourceLineNo">875</span> * @param region region to warmup<a name="line.875"></a> +<span class="sourceLineNo">876</span> */<a name="line.876"></a> +<span class="sourceLineNo">877</span> public void sendRegionWarmup(ServerName server,<a name="line.877"></a> +<span class="sourceLineNo">878</span> HRegionInfo region) {<a name="line.878"></a> +<span class="sourceLineNo">879</span> if (server == null) return;<a name="line.879"></a> +<span class="sourceLineNo">880</span> try {<a name="line.880"></a> +<span class="sourceLineNo">881</span> AdminService.BlockingInterface admin = getRsAdmin(server);<a name="line.881"></a> +<span class="sourceLineNo">882</span> HBaseRpcController controller = newRpcController();<a name="line.882"></a> +<span class="sourceLineNo">883</span> ProtobufUtil.warmupRegion(controller, admin, region);<a name="line.883"></a> +<span class="sourceLineNo">884</span> } catch (IOException e) {<a name="line.884"></a> +<span class="sourceLineNo">885</span> LOG.error("Received exception in RPC for warmup server:" +<a name="line.885"></a> +<span class="sourceLineNo">886</span> server + "region: " + region +<a name="line.886"></a> +<span class="sourceLineNo">887</span> "exception: " + e);<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><a name="line.890"></a> +<span class="sourceLineNo">891</span> /**<a name="line.891"></a> +<span class="sourceLineNo">892</span> * Contacts a region server and waits up to timeout ms<a 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This bypasses the active hmaster.<a name="line.893"></a> +<span class="sourceLineNo">894</span> */<a name="line.894"></a> +<span class="sourceLineNo">895</span> public static void closeRegionSilentlyAndWait(ClusterConnection connection,<a name="line.895"></a> +<span class="sourceLineNo">896</span> ServerName server, HRegionInfo region, long timeout) throws IOException, InterruptedException {<a name="line.896"></a> +<span class="sourceLineNo">897</span> AdminService.BlockingInterface rs = connection.getAdmin(server);<a name="line.897"></a> +<span class="sourceLineNo">898</span> HBaseRpcController controller = connection.getRpcControllerFactory().newController();<a name="line.898"></a> +<span class="sourceLineNo">899</span> try {<a name="line.899"></a> +<span class="sourceLineNo">900</span> ProtobufUtil.closeRegion(controller, rs, server, region.getRegionName());<a name="line.900"></a> +<span class="sourceLineNo">901</span> } catch (IOException e) {<a name="line.901"></a> +<span class="sourceLineNo">902</span> LOG.warn("Exception when closing region: " + region.getRegionNameAsString(), e);<a name="line.902"></a> +<span class="sourceLineNo">903</span> }<a name="line.903"></a> +<span class="sourceLineNo">904</span> long expiration = timeout + System.currentTimeMillis();<a name="line.904"></a> +<span class="sourceLineNo">905</span> while (System.currentTimeMillis() < expiration) {<a name="line.905"></a> +<span class="sourceLineNo">906</span> controller.reset();<a name="line.906"></a> +<span class="sourceLineNo">907</span> try {<a name="line.907"></a> +<span class="sourceLineNo">908</span> HRegionInfo rsRegion =<a name="line.908"></a> +<span class="sourceLineNo">909</span> ProtobufUtil.getRegionInfo(controller, rs, region.getRegionName());<a name="line.909"></a> +<span class="sourceLineNo">910</span> if (rsRegion == null) return;<a name="line.910"></a> +<span class="sourceLineNo">911</span> } catch (IOException ioe) {<a name="line.911"></a> +<span class="sourceLineNo">912</span> if (ioe instanceof NotServingRegionException) // no need to retry again<a name="line.912"></a> +<span class="sourceLineNo">913</span> return;<a name="line.913"></a> +<span class="sourceLineNo">914</span> LOG.warn("Exception when retrieving regioninfo from: "<a name="line.914"></a> +<span class="sourceLineNo">915</span> + region.getRegionNameAsString(), ioe);<a name="line.915"></a> +<span class="sourceLineNo">916</span> }<a name="line.916"></a> +<span class="sourceLineNo">917</span> Thread.sleep(1000);<a name="line.917"></a> +<span class="sourceLineNo">918</span> }<a name="line.918"></a> +<span class="sourceLineNo">919</span> throw new IOException("Region " + region + " failed to close within"<a name="line.919"></a> +<span class="sourceLineNo">920</span> + " timeout " + timeout);<a name="line.920"></a> +<span class="sourceLineNo">921</span> }<a name="line.921"></a> +<span class="sourceLineNo">922</span><a name="line.922"></a> +<span class="sourceLineNo">923</span> /**<a name="line.923"></a> +<span class="sourceLineNo">924</span> * Check if a region server is reachable and has the expected start code<a name="line.924"></a> <span class="sourceLineNo">925</span> */<a name="line.925"></a> -<span class="sourceLineNo">926</span> public static void closeRegionSilentlyAndWait(ClusterConnection connection,<a name="line.926"></a> -<span class="sourceLineNo">927</span> ServerName server, HRegionInfo region, long timeout) throws IOException, InterruptedException {<a name="line.927"></a> -<span class="sourceLineNo">928</span> AdminService.BlockingInterface rs = connection.getAdmin(server);<a name="line.928"></a> -<span class="sourceLineNo">929</span> HBaseRpcController controller = connection.getRpcControllerFactory().newController();<a name="line.929"></a> -<span class="sourceLineNo">930</span> try {<a name="line.930"></a> -<span class="sourceLineNo">931</span> ProtobufUtil.closeRegion(controller, rs, server, region.getRegionName());<a name="line.931"></a> -<span class="sourceLineNo">932</span> } catch (IOException e) {<a name="line.932"></a> -<span class="sourceLineNo">933</span> LOG.warn("Exception when closing region: " + region.getRegionNameAsString(), e);<a name="line.933"></a> -<span class="sourceLineNo">934</span> }<a name="line.934"></a> -<span class="sourceLineNo">935</span> long expiration = timeout + System.currentTimeMillis();<a name="line.935"></a> -<span class="sourceLineNo">936</span> while (System.currentTimeMillis() < expiration) {<a name="line.936"></a> -<span class="sourceLineNo">937</span> controller.reset();<a name="line.937"></a> -<span class="sourceLineNo">938</span> try {<a name="line.938"></a> -<span class="sourceLineNo">939</span> HRegionInfo rsRegion =<a name="line.939"></a> -<span class="sourceLineNo">940</span> ProtobufUtil.getRegionInfo(controller, rs, region.getRegionName());<a name="line.940"></a> -<span class="sourceLineNo">941</span> if (rsRegion == null) return;<a name="line.941"></a> -<span class="sourceLineNo">942</span> } catch (IOException ioe) {<a name="line.942"></a> -<span class="sourceLineNo">943</span> if (ioe instanceof NotServingRegionException) // no need to retry again<a name="line.943"></a> -<span class="sourceLineNo">944</span> return;<a name="line.944"></a> -<span class="sourceLineNo">945</span> LOG.warn("Exception when retrieving regioninfo from: "<a name="line.945"></a> -<span class="sourceLineNo">946</span> + region.getRegionNameAsString(), ioe);<a name="line.946"></a> -<span class="sourceLineNo">947</span> }<a name="line.947"></a> -<span class="sourceLineNo">948</span> Thread.sleep(1000);<a name="line.948"></a> +<span class="sourceLineNo">926</span> public boolean isServerReachable(ServerName server) {<a name="line.926"></a> +<span class="sourceLineNo">927</span> if (server == null) throw new NullPointerException("Passed server is null");<a name="line.927"></a> +<span class="sourceLineNo">928</span><a name="line.928"></a> +<span class="sourceLineNo">929</span><a name="line.929"></a> +<span class="sourceLineNo">930</span> RetryCounter retryCounter = pingRetryCounterFactory.create();<a name="line.930"></a> +<span class="sourceLineNo">931</span> while (retryCounter.shouldRetry()) {<a name="line.931"></a> +<span class="sourceLineNo">932</span> try {<a name="line.932"></a> +<span class="sourceLineNo">933</span> HBaseRpcController controller = newRpcController();<a name="line.933"></a> +<span class="sourceLineNo">934</span> AdminService.BlockingInterface admin = getRsAdmin(server);<a name="line.934"></a> +<span class="sourceLineNo">935</span> if (admin != null) {<a name="line.935"></a> +<span class="sourceLineNo">936</span> ServerInfo info = ProtobufUtil.getServerInfo(controller, admin);<a name="line.936"></a> +<span class="sourceLineNo">937</span> return info != null && info.hasServerName()<a name="line.937"></a> +<span class="sourceLineNo">938</span> && server.getStartcode() == info.getServerName().getStartCode();<a name="line.938"></a> +<span class="sourceLineNo">939</span> }<a name="line.939"></a> +<span class="sourceLineNo">940</span> } catch (IOException ioe) {<a name="line.940"></a> +<span class="sourceLineNo">941</span> LOG.debug("Couldn't reach " + server + ", try=" + retryCounter.getAttemptTimes()<a name="line.941"></a> +<span class="sourceLineNo">942</span> + " of " + retryCounter.getMaxAttempts(), ioe);<a name="line.942"></a> +<span class="sourceLineNo">943</span> try {<a name="line.943"></a> +<span class="sourceLineNo">944</span> retryCounter.sleepUntilNextRetry();<a name="line.944"></a> +<span class="sourceLineNo">945</span> } catch(InterruptedException ie) {<a name="line.945"></a> +<span class="sourceLineNo">946</span> Thread.currentThread().interrupt();<a name="line.946"></a> +<span class="sourceLineNo">947</span> }<a name="line.947"></a> +<span class="sourceLineNo">948</span> }<a name="line.948"></a> <span class="sourceLineNo">949</span> }<a 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It is just<a name="line.976"></a> +<span class="sourceLineNo">977</span> * a friction that will cause us hang around a bit longer waiting on<a name="line.977"></a> +<span class="sourceLineNo">978</span> * RegionServers to check-in.<a name="line.978"></a> +<span class="sourceLineNo">979</span> */<a name="line.979"></a> +<span class="sourceLineNo">980</span> private int getMinToStart() {<a name="line.980"></a> +<span class="sourceLineNo">981</span> // One server should be enough to get us off the ground.<a name="line.981"></a> +<span class="sourceLineNo">982</span> int requiredMinToStart = 1;<a name="line.982"></a> +<span class="sourceLineNo">983</span> if (BaseLoadBalancer.tablesOnMaster(master.getConfiguration())) {<a name="line.983"></a> +<span class="sourceLineNo">984</span> if (!BaseLoadBalancer.userTablesOnMaster(master.getConfiguration())) {<a name="line.984"></a> +<span class="sourceLineNo">985</span> // If Master is carrying regions but NOT user-space regions (the current default),<a name="line.985"></a> +<span class="sourceLineNo">986</span> // since the Master
<TRUNCATED>