http://git-wip-us.apache.org/repos/asf/hbase-site/blob/424d7e41/devapidocs/src-html/org/apache/hadoop/hbase/client/ConnectionImplementation.ServerErrorTracker.html ---------------------------------------------------------------------- diff --git a/devapidocs/src-html/org/apache/hadoop/hbase/client/ConnectionImplementation.ServerErrorTracker.html b/devapidocs/src-html/org/apache/hadoop/hbase/client/ConnectionImplementation.ServerErrorTracker.html index 99b6bf2..c62e029 100644 --- a/devapidocs/src-html/org/apache/hadoop/hbase/client/ConnectionImplementation.ServerErrorTracker.html +++ b/devapidocs/src-html/org/apache/hadoop/hbase/client/ConnectionImplementation.ServerErrorTracker.html @@ -431,1603 +431,1625 @@ <span class="sourceLineNo">423</span> }<a name="line.423"></a> <span class="sourceLineNo">424</span><a name="line.424"></a> <span class="sourceLineNo">425</span> @Override<a name="line.425"></a> -<span class="sourceLineNo">426</span> public MetricsConnection getConnectionMetrics() {<a name="line.426"></a> -<span class="sourceLineNo">427</span> return this.metrics;<a name="line.427"></a> +<span class="sourceLineNo">426</span> public Hbck getHbck() throws IOException {<a name="line.426"></a> +<span class="sourceLineNo">427</span> return getHbck(get(registry.getMasterAddress()));<a name="line.427"></a> <span class="sourceLineNo">428</span> }<a name="line.428"></a> <span class="sourceLineNo">429</span><a name="line.429"></a> -<span class="sourceLineNo">430</span> private ExecutorService getBatchPool() {<a name="line.430"></a> -<span class="sourceLineNo">431</span> if (batchPool == null) {<a name="line.431"></a> -<span class="sourceLineNo">432</span> synchronized (this) {<a name="line.432"></a> -<span class="sourceLineNo">433</span> if (batchPool == null) {<a name="line.433"></a> -<span class="sourceLineNo">434</span> int threads = conf.getInt("hbase.hconnection.threads.max", 256);<a name="line.434"></a> -<span class="sourceLineNo">435</span> this.batchPool = getThreadPool(threads, threads, "-shared", null);<a name="line.435"></a> -<span class="sourceLineNo">436</span> this.cleanupPool = true;<a name="line.436"></a> -<span class="sourceLineNo">437</span> }<a name="line.437"></a> -<span class="sourceLineNo">438</span> }<a name="line.438"></a> -<span class="sourceLineNo">439</span> }<a name="line.439"></a> -<span class="sourceLineNo">440</span> return this.batchPool;<a name="line.440"></a> -<span class="sourceLineNo">441</span> }<a name="line.441"></a> -<span class="sourceLineNo">442</span><a name="line.442"></a> -<span class="sourceLineNo">443</span> private ExecutorService getThreadPool(int maxThreads, int coreThreads, String nameHint,<a name="line.443"></a> -<span class="sourceLineNo">444</span> BlockingQueue<Runnable> passedWorkQueue) {<a name="line.444"></a> -<span class="sourceLineNo">445</span> // shared HTable thread executor not yet initialized<a name="line.445"></a> -<span class="sourceLineNo">446</span> if (maxThreads == 0) {<a 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masterServer, this.hostnamesCanChange);<a name="line.437"></a> +<span class="sourceLineNo">438</span><a name="line.438"></a> +<span class="sourceLineNo">439</span> return new HBaseHbck(this,<a name="line.439"></a> +<span class="sourceLineNo">440</span> (MasterProtos.HbckService.BlockingInterface) computeIfAbsentEx(stubs, key, () -> {<a name="line.440"></a> +<span class="sourceLineNo">441</span> BlockingRpcChannel channel =<a name="line.441"></a> +<span class="sourceLineNo">442</span> this.rpcClient.createBlockingRpcChannel(masterServer, user, rpcTimeout);<a name="line.442"></a> +<span class="sourceLineNo">443</span> return MasterProtos.HbckService.newBlockingStub(channel);<a name="line.443"></a> +<span class="sourceLineNo">444</span> }));<a name="line.444"></a> +<span class="sourceLineNo">445</span> }<a name="line.445"></a> +<span class="sourceLineNo">446</span><a name="line.446"></a> +<span class="sourceLineNo">447</span> @Override<a name="line.447"></a> +<span class="sourceLineNo">448</span> public MetricsConnection getConnectionMetrics() {<a name="line.448"></a> +<span class="sourceLineNo">449</span> return this.metrics;<a name="line.449"></a> +<span class="sourceLineNo">450</span> }<a name="line.450"></a> +<span class="sourceLineNo">451</span><a name="line.451"></a> +<span class="sourceLineNo">452</span> private ExecutorService getBatchPool() {<a name="line.452"></a> +<span class="sourceLineNo">453</span> if (batchPool == null) {<a name="line.453"></a> +<span class="sourceLineNo">454</span> synchronized (this) {<a name="line.454"></a> +<span class="sourceLineNo">455</span> if (batchPool == null) {<a name="line.455"></a> +<span class="sourceLineNo">456</span> int threads = conf.getInt("hbase.hconnection.threads.max", 256);<a name="line.456"></a> +<span class="sourceLineNo">457</span> this.batchPool = getThreadPool(threads, threads, "-shared", null);<a name="line.457"></a> +<span class="sourceLineNo">458</span> this.cleanupPool = true;<a name="line.458"></a> +<span class="sourceLineNo">459</span> }<a name="line.459"></a> +<span class="sourceLineNo">460</span> }<a name="line.460"></a> +<span class="sourceLineNo">461</span> }<a name="line.461"></a> +<span class="sourceLineNo">462</span> return this.batchPool;<a name="line.462"></a> +<span class="sourceLineNo">463</span> }<a name="line.463"></a> +<span class="sourceLineNo">464</span><a name="line.464"></a> +<span class="sourceLineNo">465</span> private ExecutorService getThreadPool(int maxThreads, int coreThreads, String nameHint,<a name="line.465"></a> +<span class="sourceLineNo">466</span> BlockingQueue<Runnable> passedWorkQueue) {<a name="line.466"></a> +<span class="sourceLineNo">467</span> // shared HTable thread executor not yet initialized<a name="line.467"></a> +<span class="sourceLineNo">468</span> if (maxThreads == 0) {<a name="line.468"></a> +<span class="sourceLineNo">469</span> maxThreads = Runtime.getRuntime().availableProcessors() * 8;<a name="line.469"></a> +<span class="sourceLineNo">470</span> }<a name="line.470"></a> +<span class="sourceLineNo">471</span> if (coreThreads == 0) {<a name="line.471"></a> +<span class="sourceLineNo">472</span> coreThreads = Runtime.getRuntime().availableProcessors() * 8;<a name="line.472"></a> +<span class="sourceLineNo">473</span> }<a name="line.473"></a> +<span class="sourceLineNo">474</span> long keepAliveTime = conf.getLong("hbase.hconnection.threads.keepalivetime", 60);<a name="line.474"></a> +<span class="sourceLineNo">475</span> BlockingQueue<Runnable> workQueue = passedWorkQueue;<a name="line.475"></a> +<span class="sourceLineNo">476</span> if (workQueue == null) {<a name="line.476"></a> +<span class="sourceLineNo">477</span> workQueue =<a name="line.477"></a> +<span class="sourceLineNo">478</span> new LinkedBlockingQueue<>(maxThreads *<a name="line.478"></a> +<span class="sourceLineNo">479</span> conf.getInt(HConstants.HBASE_CLIENT_MAX_TOTAL_TASKS,<a name="line.479"></a> +<span class="sourceLineNo">480</span> HConstants.DEFAULT_HBASE_CLIENT_MAX_TOTAL_TASKS));<a name="line.480"></a> +<span class="sourceLineNo">481</span> coreThreads = maxThreads;<a name="line.481"></a> +<span class="sourceLineNo">482</span> }<a name="line.482"></a> +<span class="sourceLineNo">483</span> ThreadPoolExecutor tpe = new ThreadPoolExecutor(<a name="line.483"></a> +<span class="sourceLineNo">484</span> coreThreads,<a name="line.484"></a> +<span class="sourceLineNo">485</span> maxThreads,<a name="line.485"></a> +<span class="sourceLineNo">486</span> keepAliveTime,<a name="line.486"></a> +<span class="sourceLineNo">487</span> TimeUnit.SECONDS,<a name="line.487"></a> +<span class="sourceLineNo">488</span> workQueue,<a name="line.488"></a> +<span class="sourceLineNo">489</span> Threads.newDaemonThreadFactory(toString() + nameHint));<a name="line.489"></a> +<span class="sourceLineNo">490</span> tpe.allowCoreThreadTimeOut(true);<a name="line.490"></a> +<span 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name="line.512"></a> +<span class="sourceLineNo">513</span> protected ExecutorService getCurrentMetaLookupPool() {<a name="line.513"></a> +<span class="sourceLineNo">514</span> return metaLookupPool;<a name="line.514"></a> +<span class="sourceLineNo">515</span> }<a name="line.515"></a> +<span class="sourceLineNo">516</span><a name="line.516"></a> +<span class="sourceLineNo">517</span> protected ExecutorService getCurrentBatchPool() {<a name="line.517"></a> +<span class="sourceLineNo">518</span> return batchPool;<a name="line.518"></a> +<span class="sourceLineNo">519</span> }<a name="line.519"></a> +<span class="sourceLineNo">520</span><a name="line.520"></a> +<span class="sourceLineNo">521</span> private void shutdownPools() {<a name="line.521"></a> +<span class="sourceLineNo">522</span> if (this.cleanupPool && this.batchPool != null && !this.batchPool.isShutdown()) {<a name="line.522"></a> +<span class="sourceLineNo">523</span> shutdownBatchPool(this.batchPool);<a name="line.523"></a> 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class="sourceLineNo">626</span> checkClosed();<a name="line.626"></a> +<span class="sourceLineNo">627</span> try {<a name="line.627"></a> +<span class="sourceLineNo">628</span> if (!isTableEnabled(tableName)) {<a name="line.628"></a> +<span class="sourceLineNo">629</span> LOG.debug("Table " + tableName + " not enabled");<a name="line.629"></a> +<span class="sourceLineNo">630</span> return false;<a name="line.630"></a> +<span class="sourceLineNo">631</span> }<a name="line.631"></a> +<span class="sourceLineNo">632</span> List<Pair<RegionInfo, ServerName>> locations =<a name="line.632"></a> +<span class="sourceLineNo">633</span> MetaTableAccessor.getTableRegionsAndLocations(this, tableName, true);<a name="line.633"></a> +<span class="sourceLineNo">634</span><a name="line.634"></a> +<span class="sourceLineNo">635</span> int notDeployed = 0;<a name="line.635"></a> +<span class="sourceLineNo">636</span> int regionCount = 0;<a name="line.636"></a> +<span class="sourceLineNo">637</span> for (Pair<RegionInfo, ServerName> pair : locations) {<a name="line.637"></a> +<span class="sourceLineNo">638</span> RegionInfo info = pair.getFirst();<a name="line.638"></a> +<span class="sourceLineNo">639</span> if (pair.getSecond() == null) {<a name="line.639"></a> +<span class="sourceLineNo">640</span> if (LOG.isDebugEnabled()) {<a name="line.640"></a> +<span class="sourceLineNo">641</span> LOG.debug("Table " + tableName + " has not deployed region " + pair.getFirst()<a name="line.641"></a> +<span class="sourceLineNo">642</span> .getEncodedName());<a name="line.642"></a> +<span class="sourceLineNo">643</span> }<a name="line.643"></a> +<span class="sourceLineNo">644</span> notDeployed++;<a name="line.644"></a> +<span class="sourceLineNo">645</span> } else if (splitKeys != null<a name="line.645"></a> +<span class="sourceLineNo">646</span> && !Bytes.equals(info.getStartKey(), HConstants.EMPTY_BYTE_ARRAY)) {<a name="line.646"></a> +<span class="sourceLineNo">647</span> for (byte[] splitKey : splitKeys) {<a name="line.647"></a> +<span class="sourceLineNo">648</span> // Just check if the splitkey is available<a name="line.648"></a> +<span class="sourceLineNo">649</span> if (Bytes.equals(info.getStartKey(), splitKey)) {<a name="line.649"></a> +<span class="sourceLineNo">650</span> regionCount++;<a name="line.650"></a> +<span class="sourceLineNo">651</span> break;<a name="line.651"></a> +<span class="sourceLineNo">652</span> }<a name="line.652"></a> +<span class="sourceLineNo">653</span> }<a name="line.653"></a> +<span class="sourceLineNo">654</span> } else {<a name="line.654"></a> +<span class="sourceLineNo">655</span> // Always empty start row should be counted<a name="line.655"></a> +<span class="sourceLineNo">656</span> regionCount++;<a name="line.656"></a> +<span class="sourceLineNo">657</span> }<a name="line.657"></a> +<span class="sourceLineNo">658</span> }<a name="line.658"></a> +<span class="sourceLineNo">659</span> if (notDeployed > 0) {<a name="line.659"></a> 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class="sourceLineNo">670</span> } else {<a name="line.670"></a> +<span class="sourceLineNo">671</span> if (LOG.isDebugEnabled()) {<a name="line.671"></a> +<span class="sourceLineNo">672</span> LOG.debug("Table " + tableName + " should be available");<a name="line.672"></a> +<span class="sourceLineNo">673</span> }<a name="line.673"></a> +<span class="sourceLineNo">674</span> return true;<a name="line.674"></a> +<span class="sourceLineNo">675</span> }<a name="line.675"></a> +<span class="sourceLineNo">676</span> } catch (TableNotFoundException tnfe) {<a name="line.676"></a> +<span class="sourceLineNo">677</span> LOG.warn("Table " + tableName + " not enabled, it is not exists");<a name="line.677"></a> +<span class="sourceLineNo">678</span> return false;<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><a name="line.681"></a> +<span class="sourceLineNo">682</span> @Override<a name="line.682"></a> +<span class="sourceLineNo">683</span> public HRegionLocation locateRegion(final byte[] regionName) throws IOException {<a name="line.683"></a> +<span class="sourceLineNo">684</span> RegionLocations locations = locateRegion(RegionInfo.getTable(regionName),<a name="line.684"></a> +<span class="sourceLineNo">685</span> RegionInfo.getStartKey(regionName), false, true);<a name="line.685"></a> +<span class="sourceLineNo">686</span> return locations == null ? null : locations.getRegionLocation();<a name="line.686"></a> +<span class="sourceLineNo">687</span> }<a name="line.687"></a> +<span class="sourceLineNo">688</span><a name="line.688"></a> +<span class="sourceLineNo">689</span> private boolean isDeadServer(ServerName sn) {<a name="line.689"></a> +<span class="sourceLineNo">690</span> if (clusterStatusListener == null) {<a name="line.690"></a> +<span class="sourceLineNo">691</span> return false;<a name="line.691"></a> +<span 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useCache,<a name="line.703"></a> +<span class="sourceLineNo">704</span> boolean offlined) throws IOException {<a name="line.704"></a> +<span class="sourceLineNo">705</span> List<RegionInfo> regions;<a name="line.705"></a> +<span class="sourceLineNo">706</span> if (TableName.isMetaTableName(tableName)) {<a name="line.706"></a> +<span class="sourceLineNo">707</span> regions = Collections.singletonList(RegionInfoBuilder.FIRST_META_REGIONINFO);<a name="line.707"></a> +<span class="sourceLineNo">708</span> } else {<a name="line.708"></a> +<span class="sourceLineNo">709</span> regions = MetaTableAccessor.getTableRegions(this, tableName, !offlined);<a name="line.709"></a> +<span class="sourceLineNo">710</span> }<a name="line.710"></a> +<span class="sourceLineNo">711</span> List<HRegionLocation> locations = new ArrayList<>();<a name="line.711"></a> +<span class="sourceLineNo">712</span> for (RegionInfo regionInfo : regions) {<a name="line.712"></a> +<span class="sourceLineNo">713</span> if 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We cache the META with empty row<a name="line.759"></a> -<span class="sourceLineNo">760</span> // key in MetaCache.<a name="line.760"></a> -<span class="sourceLineNo">761</span> byte[] metaCacheKey = HConstants.EMPTY_START_ROW; // use byte[0] as the row for meta<a name="line.761"></a> -<span class="sourceLineNo">762</span> RegionLocations locations = null;<a name="line.762"></a> -<span class="sourceLineNo">763</span> if (useCache) {<a name="line.763"></a> -<span class="sourceLineNo">764</span> locations = getCachedLocation(tableName, metaCacheKey);<a name="line.764"></a> -<span class="sourceLineNo">765</span> if (locations != null && locations.getRegionLocation(replicaId) != null) {<a name="line.765"></a> -<span class="sourceLineNo">766</span> return locations;<a name="line.766"></a> -<span class="sourceLineNo">767</span> }<a name="line.767"></a> -<span class="sourceLineNo">768</span> }<a name="line.768"></a> -<span class="sourceLineNo">769</span><a name="line.769"></a> -<span class="sourceLineNo">770</span> // only one thread should do the lookup.<a name="line.770"></a> -<span class="sourceLineNo">771</span> synchronized (metaRegionLock) {<a name="line.771"></a> -<span class="sourceLineNo">772</span> // Check the cache again for a hit in case some other thread made the<a name="line.772"></a> -<span class="sourceLineNo">773</span> // same query while we were waiting on the lock.<a name="line.773"></a> -<span class="sourceLineNo">774</span> if (useCache) {<a name="line.774"></a> -<span class="sourceLineNo">775</span> locations = getCachedLocation(tableName, metaCacheKey);<a name="line.775"></a> -<span class="sourceLineNo">776</span> if (locations != null && locations.getRegionLocation(replicaId) != null) {<a name="line.776"></a> -<span class="sourceLineNo">777</span> return locations;<a name="line.777"></a> -<span class="sourceLineNo">778</span> }<a name="line.778"></a> -<span class="sourceLineNo">779</span> }<a name="line.779"></a> -<span class="sourceLineNo">780</span><a name="line.780"></a> -<span class="sourceLineNo">781</span> // Look up from zookeeper<a name="line.781"></a> -<span class="sourceLineNo">782</span> locations = get(this.registry.getMetaRegionLocation());<a name="line.782"></a> -<span class="sourceLineNo">783</span> if (locations != null) {<a name="line.783"></a> -<span class="sourceLineNo">784</span> cacheLocation(tableName, locations);<a name="line.784"></a> -<span class="sourceLineNo">785</span> }<a name="line.785"></a> -<span class="sourceLineNo">786</span> }<a name="line.786"></a> -<span class="sourceLineNo">787</span> return locations;<a name="line.787"></a> -<span class="sourceLineNo">788</span> }<a name="line.788"></a> -<span class="sourceLineNo">789</span><a name="line.789"></a> -<span class="sourceLineNo">790</span> /**<a name="line.790"></a> -<span class="sourceLineNo">791</span> * Search the hbase:meta table for the HRegionLocation info that contains the table and row we're<a 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Scan().withStartRow(metaStartKey).withStopRow(metaStopKey, true)<a name="line.810"></a> -<span class="sourceLineNo">811</span> .addFamily(HConstants.CATALOG_FAMILY).setReversed(true).setCaching(5)<a name="line.811"></a> -<span class="sourceLineNo">812</span> .setReadType(ReadType.PREAD);<a name="line.812"></a> -<span class="sourceLineNo">813</span> if (this.useMetaReplicas) {<a name="line.813"></a> -<span class="sourceLineNo">814</span> s.setConsistency(Consistency.TIMELINE);<a name="line.814"></a> -<span class="sourceLineNo">815</span> }<a name="line.815"></a> -<span class="sourceLineNo">816</span> int maxAttempts = (retry ? numTries : 1);<a name="line.816"></a> -<span class="sourceLineNo">817</span> boolean relocateMeta = false;<a name="line.817"></a> -<span class="sourceLineNo">818</span> for (int tries = 0; ; tries++) {<a name="line.818"></a> -<span class="sourceLineNo">819</span> if (tries >= maxAttempts) {<a name="line.819"></a> -<span class="sourceLineNo">820</span> throw new NoServerForRegionException("Unable to find region for "<a name="line.820"></a> -<span class="sourceLineNo">821</span> + Bytes.toStringBinary(row) + " in " + tableName + " after " + tries + " tries.");<a name="line.821"></a> -<span class="sourceLineNo">822</span> }<a name="line.822"></a> -<span class="sourceLineNo">823</span> if (useCache) {<a name="line.823"></a> -<span class="sourceLineNo">824</span> RegionLocations locations = getCachedLocation(tableName, row);<a name="line.824"></a> -<span class="sourceLineNo">825</span> if (locations != null && locations.getRegionLocation(replicaId) != null) {<a name="line.825"></a> -<span class="sourceLineNo">826</span> return locations;<a name="line.826"></a> -<span class="sourceLineNo">827</span> }<a name="line.827"></a> -<span class="sourceLineNo">828</span> } else {<a name="line.828"></a> -<span class="sourceLineNo">829</span> // If we are not supposed to be using the cache, delete any existing cached location<a name="line.829"></a> -<span class="sourceLineNo">830</span> // so it won't interfere.<a name="line.830"></a> -<span class="sourceLineNo">831</span> // We are only supposed to clean the cache for the specific replicaId<a name="line.831"></a> -<span class="sourceLineNo">832</span> metaCache.clearCache(tableName, row, replicaId);<a name="line.832"></a> -<span class="sourceLineNo">833</span> }<a name="line.833"></a> -<span class="sourceLineNo">834</span> // Query the meta region<a name="line.834"></a> -<span class="sourceLineNo">835</span> long pauseBase = this.pause;<a name="line.835"></a> -<span class="sourceLineNo">836</span> userRegionLock.lock();<a name="line.836"></a> -<span class="sourceLineNo">837</span> try {<a name="line.837"></a> -<span class="sourceLineNo">838</span> if (useCache) {// re-check cache after get lock<a name="line.838"></a> -<span class="sourceLineNo">839</span> RegionLocations locations = getCachedLocation(tableName, row);<a name="line.839"></a> -<span class="sourceLineNo">840</span> if 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name="line.850"></a> -<span class="sourceLineNo">851</span> rpcControllerFactory, getMetaLookupPool(), metaReplicaCallTimeoutScanInMicroSecond)) {<a name="line.851"></a> -<span class="sourceLineNo">852</span> boolean tableNotFound = true;<a name="line.852"></a> -<span class="sourceLineNo">853</span> for (;;) {<a name="line.853"></a> -<span class="sourceLineNo">854</span> Result regionInfoRow = rcs.next();<a name="line.854"></a> -<span class="sourceLineNo">855</span> if (regionInfoRow == null) {<a name="line.855"></a> -<span class="sourceLineNo">856</span> if (tableNotFound) {<a name="line.856"></a> -<span class="sourceLineNo">857</span> throw new TableNotFoundException(tableName);<a name="line.857"></a> -<span class="sourceLineNo">858</span> } else {<a name="line.858"></a> -<span class="sourceLineNo">859</span> throw new IOException(<a name="line.859"></a> -<span class="sourceLineNo">860</span> "Unable to find region for " + Bytes.toStringBinary(row) + " in " + tableName);<a name="line.860"></a> -<span class="sourceLineNo">861</span> }<a name="line.861"></a> -<span class="sourceLineNo">862</span> }<a name="line.862"></a> -<span class="sourceLineNo">863</span> tableNotFound = false;<a name="line.863"></a> -<span class="sourceLineNo">864</span> // convert the row result into the HRegionLocation we need!<a name="line.864"></a> -<span class="sourceLineNo">865</span> RegionLocations locations = MetaTableAccessor.getRegionLocations(regionInfoRow);<a name="line.865"></a> -<span class="sourceLineNo">866</span> if (locations == null || locations.getRegionLocation(replicaId) == null) {<a name="line.866"></a> -<span class="sourceLineNo">867</span> throw new IOException("RegionInfo null in " + tableName + ", row=" + regionInfoRow);<a name="line.867"></a> -<span class="sourceLineNo">868</span> }<a name="line.868"></a> -<span class="sourceLineNo">869</span> RegionInfo regionInfo = locations.getRegionLocation(replicaId).getRegion();<a name="line.869"></a> -<span class="sourceLineNo">870</span> if (regionInfo == null) {<a name="line.870"></a> -<span class="sourceLineNo">871</span> throw new IOException("RegionInfo null or empty in " + TableName.META_TABLE_NAME +<a name="line.871"></a> -<span class="sourceLineNo">872</span> ", row=" + regionInfoRow);<a name="line.872"></a> -<span class="sourceLineNo">873</span> }<a name="line.873"></a> -<span class="sourceLineNo">874</span> // See HBASE-20182. 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" +<a name="line.880"></a> -<span class="sourceLineNo">881</span> regionInfo.getRegionNameAsString());<a name="line.881"></a> -<span class="sourceLineNo">882</span> }<a name="line.882"></a> -<span class="sourceLineNo">883</span> // It is possible that the split children have not been online yet and we have skipped<a name="line.883"></a> -<span class="sourceLineNo">884</span> // the parent in the above condition, so we may have already reached a region which does<a name="line.884"></a> -<span class="sourceLineNo">885</span> // not contains us.<a name="line.885"></a> -<span class="sourceLineNo">886</span> if (!regionInfo.containsRow(row)) {<a name="line.886"></a> -<span class="sourceLineNo">887</span> throw new IOException(<a name="line.887"></a> -<span class="sourceLineNo">888</span> "Unable to find region for " + Bytes.toStringBinary(row) + " in " + tableName);<a name="line.888"></a> -<span class="sourceLineNo">889</span> }<a name="line.889"></a> -<span class="sourceLineNo">890</span> ServerName serverName = locations.getRegionLocation(replicaId).getServerName();<a name="line.890"></a> -<span class="sourceLineNo">891</span> if (serverName == null) {<a name="line.891"></a> -<span class="sourceLineNo">892</span> throw new NoServerForRegionException("No server address listed in " +<a name="line.892"></a> -<span class="sourceLineNo">893</span> TableName.META_TABLE_NAME + " for region " + regionInfo.getRegionNameAsString() +<a name="line.893"></a> -<span class="sourceLineNo">894</span> " containing row " + Bytes.toStringBinary(row));<a name="line.894"></a> +<span class="sourceLineNo">736</span> public HRegionLocation relocateRegion(final TableName tableName, final byte[] row)<a name="line.736"></a> +<span class="sourceLineNo">737</span> throws IOException {<a name="line.737"></a> +<span class="sourceLineNo">738</span> RegionLocations locations =<a name="line.738"></a> +<span class="sourceLineNo">739</span> relocateRegion(tableName, row, RegionReplicaUtil.DEFAULT_REPLICA_ID);<a name="line.739"></a> +<span class="sourceLineNo">740</span> return locations == null ? null<a name="line.740"></a> +<span class="sourceLineNo">741</span> : locations.getRegionLocation(RegionReplicaUtil.DEFAULT_REPLICA_ID);<a name="line.741"></a> +<span class="sourceLineNo">742</span> }<a name="line.742"></a> +<span class="sourceLineNo">743</span><a name="line.743"></a> +<span class="sourceLineNo">744</span> @Override<a name="line.744"></a> +<span class="sourceLineNo">745</span> public RegionLocations relocateRegion(final TableName tableName,<a name="line.745"></a> +<span class="sourceLineNo">746</span> final byte [] row, int replicaId) throws IOException{<a name="line.746"></a> +<span class="sourceLineNo">747</span> // Since this is an explicit request not to use any caching, finding<a name="line.747"></a> +<span class="sourceLineNo">748</span> // disabled tables should not be desirable. 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We cache the META with empty row<a name="line.781"></a> +<span class="sourceLineNo">782</span> // key in MetaCache.<a name="line.782"></a> +<span class="sourceLineNo">783</span> byte[] metaCacheKey = HConstants.EMPTY_START_ROW; // use byte[0] as the row for meta<a name="line.783"></a> +<span class="sourceLineNo">784</span> RegionLocations locations = null;<a name="line.784"></a> +<span class="sourceLineNo">785</span> if (useCache) {<a name="line.785"></a> +<span class="sourceLineNo">786</span> locations = getCachedLocation(tableName, metaCacheKey);<a name="line.786"></a> +<span class="sourceLineNo">787</span> if (locations != null && locations.getRegionLocation(replicaId) != null) {<a name="line.787"></a> +<span class="sourceLineNo">788</span> return locations;<a name="line.788"></a> +<span class="sourceLineNo">789</span> }<a name="line.789"></a> +<span class="sourceLineNo">790</span> }<a name="line.790"></a> +<span class="sourceLineNo">791</span><a name="line.791"></a> +<span class="sourceLineNo">792</span> // only one thread should do the lookup.<a name="line.792"></a> +<span class="sourceLineNo">793</span> synchronized (metaRegionLock) {<a name="line.793"></a> +<span class="sourceLineNo">794</span> // Check the cache again for a hit in case some other thread made the<a name="line.794"></a> +<span class="sourceLineNo">795</span> // same query while we were waiting on the lock.<a name="line.795"></a> +<span class="sourceLineNo">796</span> if (useCache) {<a name="line.796"></a> +<span class="sourceLineNo">797</span> locations = getCachedLocation(tableName, metaCacheKey);<a name="line.797"></a> +<span class="sourceLineNo">798</span> if (locations != null && locations.getRegionLocation(replicaId) != null) {<a name="line.798"></a> +<span class="sourceLineNo">799</span> return locations;<a name="line.799"></a> +<span class="sourceLineNo">800</span> }<a name="line.800"></a> +<span class="sourceLineNo">801</span> }<a name="line.801"></a> +<span class="sourceLineNo">802</span><a name="line.802"></a> +<span class="sourceLineNo">803</span> // Look up from zookeeper<a name="line.803"></a> +<span class="sourceLineNo">804</span> locations = get(this.registry.getMetaRegionLocation());<a name="line.804"></a> +<span class="sourceLineNo">805</span> if (locations != null) {<a name="line.805"></a> +<span class="sourceLineNo">806</span> cacheLocation(tableName, locations);<a name="line.806"></a> +<span class="sourceLineNo">807</span> }<a name="line.807"></a> +<span class="sourceLineNo">808</span> }<a name="line.808"></a> +<span class="sourceLineNo">809</span> return locations;<a name="line.809"></a> +<span class="sourceLineNo">810</span> }<a name="line.810"></a> +<span class="sourceLineNo">811</span><a name="line.811"></a> +<span class="sourceLineNo">812</span> /**<a name="line.812"></a> +<span class="sourceLineNo">813</span> * Search the hbase:meta table for the HRegionLocation info that contains the table and row we're<a name="line.813"></a> +<span class="sourceLineNo">814</span> * seeking.<a name="line.814"></a> +<span class="sourceLineNo">815</span> */<a name="line.815"></a> +<span class="sourceLineNo">816</span> private RegionLocations locateRegionInMeta(TableName tableName, byte[] row, boolean useCache,<a name="line.816"></a> +<span class="sourceLineNo">817</span> boolean retry, int replicaId) throws IOException {<a name="line.817"></a> +<span class="sourceLineNo">818</span> // If we are supposed to be using the cache, look in the cache to see if we already have the<a name="line.818"></a> +<span class="sourceLineNo">819</span> // region.<a name="line.819"></a> +<span class="sourceLineNo">820</span> if (useCache) {<a name="line.820"></a> +<span class="sourceLineNo">821</span> RegionLocations locations = getCachedLocation(tableName, row);<a name="line.821"></a> +<span class="sourceLineNo">822</span> if (locations != null && locations.getRegionLocation(replicaId) != null) {<a name="line.822"></a> 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Scan().withStartRow(metaStartKey).withStopRow(metaStopKey, true)<a name="line.832"></a> +<span class="sourceLineNo">833</span> .addFamily(HConstants.CATALOG_FAMILY).setReversed(true).setCaching(5)<a name="line.833"></a> +<span class="sourceLineNo">834</span> .setReadType(ReadType.PREAD);<a name="line.834"></a> +<span class="sourceLineNo">835</span> if (this.useMetaReplicas) {<a name="line.835"></a> +<span class="sourceLineNo">836</span> s.setConsistency(Consistency.TIMELINE);<a name="line.836"></a> +<span class="sourceLineNo">837</span> }<a name="line.837"></a> +<span class="sourceLineNo">838</span> int maxAttempts = (retry ? numTries : 1);<a name="line.838"></a> +<span class="sourceLineNo">839</span> boolean relocateMeta = false;<a name="line.839"></a> +<span class="sourceLineNo">840</span> for (int tries = 0; ; tries++) {<a name="line.840"></a> +<span class="sourceLineNo">841</span> if (tries >= maxAttempts) {<a name="line.841"></a> +<span class="sourceLineNo">842</span> throw new NoServerForRegionException("Unable to find region for "<a name="line.842"></a> +<span class="sourceLineNo">843</span> + Bytes.toStringBinary(row) + " in " + tableName + " after " + tries + " tries.");<a name="line.843"></a> +<span class="sourceLineNo">844</span> }<a name="line.844"></a> +<span class="sourceLineNo">845</span> if (useCache) {<a name="line.845"></a> +<span class="sourceLineNo">846</span> RegionLocations locations = getCachedLocation(tableName, row);<a name="line.846"></a> +<span class="sourceLineNo">847</span> if (locations != null && locations.getRegionLocation(replicaId) != null) {<a name="line.847"></a> +<span class="sourceLineNo">848</span> return locations;<a name="line.848"></a> +<span class="sourceLineNo">849</span> }<a name="line.849"></a> +<span class="sourceLineNo">850</span> } else {<a name="line.850"></a> +<span class="sourceLineNo">851</span> // If we are not supposed to be using the cache, delete any existing cached location<a name="line.851"></a> +<span 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(locations != null && locations.getRegionLocation(replicaId) != null) {<a name="line.862"></a> +<span class="sourceLineNo">863</span> return locations;<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> if (relocateMeta) {<a name="line.866"
<TRUNCATED>