You are viewing a plain text version of this content. The canonical link for it is here.
Posted to commits@hbase.apache.org by mi...@apache.org on 2016/01/21 18:22:54 UTC
[35/51] [partial] hbase-site git commit: Published site at
4bf6f8379d7f85413b914dddf607d016780d40ce.
http://git-wip-us.apache.org/repos/asf/hbase-site/blob/75eda567/apidocs/src-html/org/apache/hadoop/hbase/util/RegionMover.html
----------------------------------------------------------------------
diff --git a/apidocs/src-html/org/apache/hadoop/hbase/util/RegionMover.html b/apidocs/src-html/org/apache/hadoop/hbase/util/RegionMover.html
index 46c1870..59a1891 100644
--- a/apidocs/src-html/org/apache/hadoop/hbase/util/RegionMover.html
+++ b/apidocs/src-html/org/apache/hadoop/hbase/util/RegionMover.html
@@ -463,546 +463,548 @@
<span class="sourceLineNo">455</span> }<a name="line.455"></a>
<span class="sourceLineNo">456</span> }<a name="line.456"></a>
<span class="sourceLineNo">457</span><a name="line.457"></a>
-<span class="sourceLineNo">458</span> private void unloadRegions(Admin admin, String server, ArrayList<String> regionServers,<a name="line.458"></a>
-<span class="sourceLineNo">459</span> boolean ack, List<HRegionInfo> movedRegions) throws Exception {<a name="line.459"></a>
-<span class="sourceLineNo">460</span> List<HRegionInfo> regionsToMove = new ArrayList<HRegionInfo>();<a name="line.460"></a>
-<span class="sourceLineNo">461</span> regionsToMove = getRegions(this.conf, server);<a name="line.461"></a>
-<span class="sourceLineNo">462</span> if (regionsToMove.size() == 0) {<a name="line.462"></a>
-<span class="sourceLineNo">463</span> LOG.info("No Regions to move....Quitting now");<a name="line.463"></a>
-<span class="sourceLineNo">464</span> return;<a name="line.464"></a>
-<span class="sourceLineNo">465</span> } else if (regionServers.size() == 0) {<a name="line.465"></a>
-<span class="sourceLineNo">466</span> LOG.warn("No Regions were moved - no servers available");<a name="line.466"></a>
-<span class="sourceLineNo">467</span> throw new Exception("No online region servers");<a name="line.467"></a>
-<span class="sourceLineNo">468</span> }<a name="line.468"></a>
-<span class="sourceLineNo">469</span> while (true) {<a name="line.469"></a>
-<span class="sourceLineNo">470</span> regionsToMove = getRegions(this.conf, server);<a name="line.470"></a>
-<span class="sourceLineNo">471</span> regionsToMove.removeAll(movedRegions);<a name="line.471"></a>
-<span class="sourceLineNo">472</span> if (regionsToMove.size() == 0) {<a name="line.472"></a>
-<span class="sourceLineNo">473</span> break;<a name="line.473"></a>
-<span class="sourceLineNo">474</span> }<a name="line.474"></a>
-<span class="sourceLineNo">475</span> int counter = 0;<a name="line.475"></a>
-<span class="sourceLineNo">476</span> LOG.info("Moving " + regionsToMove.size() + " regions from " + this.hostname + " to "<a name="line.476"></a>
-<span class="sourceLineNo">477</span> + regionServers.size() + " servers using " + this.maxthreads + " threads .Ack Mode:"<a name="line.477"></a>
-<span class="sourceLineNo">478</span> + ack);<a name="line.478"></a>
-<span class="sourceLineNo">479</span> ExecutorService moveRegionsPool = Executors.newFixedThreadPool(this.maxthreads);<a name="line.479"></a>
-<span class="sourceLineNo">480</span> List<Future<Boolean>> taskList = new ArrayList<Future<Boolean>>();<a name="line.480"></a>
-<span class="sourceLineNo">481</span> int serverIndex = 0;<a name="line.481"></a>
-<span class="sourceLineNo">482</span> while (counter < regionsToMove.size()) {<a name="line.482"></a>
-<span class="sourceLineNo">483</span> if (ack) {<a name="line.483"></a>
-<span class="sourceLineNo">484</span> Future<Boolean> task =<a name="line.484"></a>
-<span class="sourceLineNo">485</span> moveRegionsPool.submit(new MoveWithAck(admin, regionsToMove.get(counter), server,<a name="line.485"></a>
-<span class="sourceLineNo">486</span> regionServers.get(serverIndex), movedRegions));<a name="line.486"></a>
-<span class="sourceLineNo">487</span> taskList.add(task);<a name="line.487"></a>
-<span class="sourceLineNo">488</span> } else {<a name="line.488"></a>
-<span class="sourceLineNo">489</span> Future<Boolean> task =<a name="line.489"></a>
-<span class="sourceLineNo">490</span> moveRegionsPool.submit(new MoveWithoutAck(admin, regionsToMove.get(counter), server,<a name="line.490"></a>
-<span class="sourceLineNo">491</span> regionServers.get(serverIndex), movedRegions));<a name="line.491"></a>
-<span class="sourceLineNo">492</span> taskList.add(task);<a name="line.492"></a>
-<span class="sourceLineNo">493</span> }<a name="line.493"></a>
-<span class="sourceLineNo">494</span> counter++;<a name="line.494"></a>
-<span class="sourceLineNo">495</span> serverIndex = (serverIndex + 1) % regionServers.size();<a name="line.495"></a>
-<span class="sourceLineNo">496</span> }<a name="line.496"></a>
-<span class="sourceLineNo">497</span> moveRegionsPool.shutdown();<a name="line.497"></a>
-<span class="sourceLineNo">498</span> long timeoutInSeconds =<a name="line.498"></a>
-<span class="sourceLineNo">499</span> regionsToMove.size()<a name="line.499"></a>
-<span class="sourceLineNo">500</span> * admin.getConfiguration().getInt(MOVE_WAIT_MAX_KEY, DEFAULT_MOVE_WAIT_MAX);<a name="line.500"></a>
-<span class="sourceLineNo">501</span> try {<a name="line.501"></a>
-<span class="sourceLineNo">502</span> if (!moveRegionsPool.awaitTermination(timeoutInSeconds, TimeUnit.SECONDS)) {<a name="line.502"></a>
-<span class="sourceLineNo">503</span> moveRegionsPool.shutdownNow();<a name="line.503"></a>
-<span class="sourceLineNo">504</span> }<a name="line.504"></a>
-<span class="sourceLineNo">505</span> } catch (InterruptedException e) {<a name="line.505"></a>
-<span class="sourceLineNo">506</span> moveRegionsPool.shutdownNow();<a name="line.506"></a>
-<span class="sourceLineNo">507</span> Thread.currentThread().interrupt();<a name="line.507"></a>
-<span class="sourceLineNo">508</span> }<a name="line.508"></a>
-<span class="sourceLineNo">509</span> for (Future<Boolean> future : taskList) {<a name="line.509"></a>
-<span class="sourceLineNo">510</span> try {<a name="line.510"></a>
-<span class="sourceLineNo">511</span> // if even after shutdownNow threads are stuck we wait for 5 secs max<a name="line.511"></a>
-<span class="sourceLineNo">512</span> if (!future.get(5, TimeUnit.SECONDS)) {<a name="line.512"></a>
-<span class="sourceLineNo">513</span> LOG.error("Was Not able to move region....Exiting Now");<a name="line.513"></a>
-<span class="sourceLineNo">514</span> throw new Exception("Could not move region Exception");<a name="line.514"></a>
-<span class="sourceLineNo">515</span> }<a name="line.515"></a>
-<span class="sourceLineNo">516</span> } catch (InterruptedException e) {<a name="line.516"></a>
-<span class="sourceLineNo">517</span> LOG.error("Interrupted while waiting for Thread to Complete " + e.getMessage(), e);<a name="line.517"></a>
-<span class="sourceLineNo">518</span> throw e;<a name="line.518"></a>
-<span class="sourceLineNo">519</span> } catch (ExecutionException e) {<a name="line.519"></a>
-<span class="sourceLineNo">520</span> LOG.error("Got Exception From Thread While moving region " + e.getMessage(), e);<a name="line.520"></a>
-<span class="sourceLineNo">521</span> throw e;<a name="line.521"></a>
-<span class="sourceLineNo">522</span> } catch (CancellationException e) {<a name="line.522"></a>
-<span class="sourceLineNo">523</span> LOG.error("Thread for moving region cancelled. Timeout for cancellation:"<a name="line.523"></a>
-<span class="sourceLineNo">524</span> + timeoutInSeconds + "secs", e);<a name="line.524"></a>
-<span class="sourceLineNo">525</span> throw e;<a name="line.525"></a>
-<span class="sourceLineNo">526</span> }<a name="line.526"></a>
-<span class="sourceLineNo">527</span> }<a name="line.527"></a>
-<span class="sourceLineNo">528</span> }<a name="line.528"></a>
-<span class="sourceLineNo">529</span> }<a name="line.529"></a>
-<span class="sourceLineNo">530</span><a name="line.530"></a>
-<span class="sourceLineNo">531</span> /**<a name="line.531"></a>
-<span class="sourceLineNo">532</span> * Move Regions and make sure that they are up on the target server.If a region movement fails we<a name="line.532"></a>
-<span class="sourceLineNo">533</span> * exit as failure<a name="line.533"></a>
-<span class="sourceLineNo">534</span> */<a name="line.534"></a>
-<span class="sourceLineNo">535</span> private class MoveWithAck implements Callable<Boolean> {<a name="line.535"></a>
-<span class="sourceLineNo">536</span> private Admin admin;<a name="line.536"></a>
-<span class="sourceLineNo">537</span> private HRegionInfo region;<a name="line.537"></a>
-<span class="sourceLineNo">538</span> private String targetServer;<a name="line.538"></a>
-<span class="sourceLineNo">539</span> private List<HRegionInfo> movedRegions;<a name="line.539"></a>
-<span class="sourceLineNo">540</span> private String sourceServer;<a name="line.540"></a>
-<span class="sourceLineNo">541</span><a name="line.541"></a>
-<span class="sourceLineNo">542</span> public MoveWithAck(Admin admin, HRegionInfo regionInfo, String sourceServer,<a name="line.542"></a>
-<span class="sourceLineNo">543</span> String targetServer, List<HRegionInfo> movedRegions) {<a name="line.543"></a>
-<span class="sourceLineNo">544</span> this.admin = admin;<a name="line.544"></a>
-<span class="sourceLineNo">545</span> this.region = regionInfo;<a name="line.545"></a>
-<span class="sourceLineNo">546</span> this.targetServer = targetServer;<a name="line.546"></a>
-<span class="sourceLineNo">547</span> this.movedRegions = movedRegions;<a name="line.547"></a>
-<span class="sourceLineNo">548</span> this.sourceServer = sourceServer;<a name="line.548"></a>
-<span class="sourceLineNo">549</span> }<a name="line.549"></a>
-<span class="sourceLineNo">550</span><a name="line.550"></a>
-<span class="sourceLineNo">551</span> @Override<a name="line.551"></a>
-<span class="sourceLineNo">552</span> public Boolean call() throws IOException, InterruptedException {<a name="line.552"></a>
-<span class="sourceLineNo">553</span> boolean moved = false;<a name="line.553"></a>
-<span class="sourceLineNo">554</span> int count = 0;<a name="line.554"></a>
-<span class="sourceLineNo">555</span> int retries = admin.getConfiguration().getInt(MOVE_RETRIES_MAX_KEY, DEFAULT_MOVE_RETRIES_MAX);<a name="line.555"></a>
-<span class="sourceLineNo">556</span> int maxWaitInSeconds =<a name="line.556"></a>
-<span class="sourceLineNo">557</span> admin.getConfiguration().getInt(MOVE_WAIT_MAX_KEY, DEFAULT_MOVE_WAIT_MAX);<a name="line.557"></a>
-<span class="sourceLineNo">558</span> long startTime = EnvironmentEdgeManager.currentTime();<a name="line.558"></a>
-<span class="sourceLineNo">559</span> boolean sameServer = true;<a name="line.559"></a>
-<span class="sourceLineNo">560</span> // Assert we can scan the region in its current location<a name="line.560"></a>
-<span class="sourceLineNo">561</span> isSuccessfulScan(admin, region);<a name="line.561"></a>
-<span class="sourceLineNo">562</span> LOG.info("Moving region:" + region.getEncodedName() + " from " + sourceServer + " to "<a name="line.562"></a>
-<span class="sourceLineNo">563</span> + targetServer);<a name="line.563"></a>
-<span class="sourceLineNo">564</span> while (count < retries && sameServer) {<a name="line.564"></a>
-<span class="sourceLineNo">565</span> if (count > 0) {<a name="line.565"></a>
-<span class="sourceLineNo">566</span> LOG.info("Retry " + Integer.toString(count) + " of maximum " + Integer.toString(retries));<a name="line.566"></a>
-<span class="sourceLineNo">567</span> }<a name="line.567"></a>
-<span class="sourceLineNo">568</span> count = count + 1;<a name="line.568"></a>
-<span class="sourceLineNo">569</span> admin.move(region.getEncodedNameAsBytes(), Bytes.toBytes(targetServer));<a name="line.569"></a>
-<span class="sourceLineNo">570</span> long maxWait = startTime + (maxWaitInSeconds * 1000);<a name="line.570"></a>
-<span class="sourceLineNo">571</span> while (EnvironmentEdgeManager.currentTime() < maxWait) {<a name="line.571"></a>
-<span class="sourceLineNo">572</span> sameServer = isSameServer(admin, region, sourceServer);<a name="line.572"></a>
-<span class="sourceLineNo">573</span> if (!sameServer) {<a name="line.573"></a>
-<span class="sourceLineNo">574</span> break;<a name="line.574"></a>
-<span class="sourceLineNo">575</span> }<a name="line.575"></a>
-<span class="sourceLineNo">576</span> Thread.sleep(100);<a name="line.576"></a>
-<span class="sourceLineNo">577</span> }<a name="line.577"></a>
-<span class="sourceLineNo">578</span> }<a name="line.578"></a>
-<span class="sourceLineNo">579</span> if (sameServer) {<a name="line.579"></a>
-<span class="sourceLineNo">580</span> LOG.error("Region: " + region.getRegionNameAsString() + " stuck on " + this.sourceServer<a name="line.580"></a>
-<span class="sourceLineNo">581</span> + ",newServer=" + this.targetServer);<a name="line.581"></a>
-<span class="sourceLineNo">582</span> } else {<a name="line.582"></a>
-<span class="sourceLineNo">583</span> isSuccessfulScan(admin, region);<a name="line.583"></a>
-<span class="sourceLineNo">584</span> LOG.info("Moved Region "<a name="line.584"></a>
-<span class="sourceLineNo">585</span> + region.getRegionNameAsString()<a name="line.585"></a>
-<span class="sourceLineNo">586</span> + " cost:"<a name="line.586"></a>
-<span class="sourceLineNo">587</span> + String.format("%.3f",<a name="line.587"></a>
-<span class="sourceLineNo">588</span> (float) (EnvironmentEdgeManager.currentTime() - startTime) / 1000));<a name="line.588"></a>
-<span class="sourceLineNo">589</span> moved = true;<a name="line.589"></a>
-<span class="sourceLineNo">590</span> movedRegions.add(region);<a name="line.590"></a>
-<span class="sourceLineNo">591</span> }<a name="line.591"></a>
-<span class="sourceLineNo">592</span> return moved;<a name="line.592"></a>
-<span class="sourceLineNo">593</span> }<a name="line.593"></a>
-<span class="sourceLineNo">594</span> }<a name="line.594"></a>
-<span class="sourceLineNo">595</span><a name="line.595"></a>
-<span class="sourceLineNo">596</span> /**<a name="line.596"></a>
-<span class="sourceLineNo">597</span> * Move Regions without Acknowledging.Usefule in case of RS shutdown as we might want to shut the<a name="line.597"></a>
-<span class="sourceLineNo">598</span> * RS down anyways and not abort on a stuck region. Improves movement performance<a name="line.598"></a>
-<span class="sourceLineNo">599</span> */<a name="line.599"></a>
-<span class="sourceLineNo">600</span> private class MoveWithoutAck implements Callable<Boolean> {<a name="line.600"></a>
-<span class="sourceLineNo">601</span> private Admin admin;<a name="line.601"></a>
-<span class="sourceLineNo">602</span> private HRegionInfo region;<a name="line.602"></a>
-<span class="sourceLineNo">603</span> private String targetServer;<a name="line.603"></a>
-<span class="sourceLineNo">604</span> private List<HRegionInfo> movedRegions;<a name="line.604"></a>
-<span class="sourceLineNo">605</span> private String sourceServer;<a name="line.605"></a>
-<span class="sourceLineNo">606</span><a name="line.606"></a>
-<span class="sourceLineNo">607</span> public MoveWithoutAck(Admin admin, HRegionInfo regionInfo, String sourceServer,<a name="line.607"></a>
-<span class="sourceLineNo">608</span> String targetServer, List<HRegionInfo> movedRegions) {<a name="line.608"></a>
-<span class="sourceLineNo">609</span> this.admin = admin;<a name="line.609"></a>
-<span class="sourceLineNo">610</span> this.region = regionInfo;<a name="line.610"></a>
-<span class="sourceLineNo">611</span> this.targetServer = targetServer;<a name="line.611"></a>
-<span class="sourceLineNo">612</span> this.movedRegions = movedRegions;<a name="line.612"></a>
-<span class="sourceLineNo">613</span> this.sourceServer = sourceServer;<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> @Override<a name="line.616"></a>
-<span class="sourceLineNo">617</span> public Boolean call() {<a name="line.617"></a>
-<span class="sourceLineNo">618</span> try {<a name="line.618"></a>
-<span class="sourceLineNo">619</span> LOG.info("Moving region:" + region.getEncodedName() + " from " + sourceServer + " to "<a name="line.619"></a>
-<span class="sourceLineNo">620</span> + targetServer);<a name="line.620"></a>
-<span class="sourceLineNo">621</span> admin.move(region.getEncodedNameAsBytes(), Bytes.toBytes(targetServer));<a name="line.621"></a>
-<span class="sourceLineNo">622</span> LOG.info("Moved " + region.getEncodedName() + " from " + sourceServer + " to "<a name="line.622"></a>
-<span class="sourceLineNo">623</span> + targetServer);<a name="line.623"></a>
-<span class="sourceLineNo">624</span> } catch (Exception e) {<a name="line.624"></a>
-<span class="sourceLineNo">625</span> LOG.error("Error Moving Region:" + region.getEncodedName(), e);<a name="line.625"></a>
-<span class="sourceLineNo">626</span> } finally {<a name="line.626"></a>
-<span class="sourceLineNo">627</span> // we add region to the moved regions list in No Ack Mode since this is best effort<a name="line.627"></a>
-<span class="sourceLineNo">628</span> movedRegions.add(region);<a name="line.628"></a>
-<span class="sourceLineNo">629</span> }<a name="line.629"></a>
-<span class="sourceLineNo">630</span> return true;<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><a name="line.633"></a>
-<span class="sourceLineNo">634</span> private List<HRegionInfo> readRegionsFromFile(String filename) throws IOException {<a name="line.634"></a>
-<span class="sourceLineNo">635</span> List<HRegionInfo> regions = new ArrayList<HRegionInfo>();<a name="line.635"></a>
-<span class="sourceLineNo">636</span> File f = new File(filename);<a name="line.636"></a>
-<span class="sourceLineNo">637</span> if (!f.exists()) {<a name="line.637"></a>
-<span class="sourceLineNo">638</span> return regions;<a name="line.638"></a>
-<span class="sourceLineNo">639</span> }<a name="line.639"></a>
-<span class="sourceLineNo">640</span> FileInputStream fis = null;<a name="line.640"></a>
-<span class="sourceLineNo">641</span> DataInputStream dis = null;<a name="line.641"></a>
-<span class="sourceLineNo">642</span> try {<a name="line.642"></a>
-<span class="sourceLineNo">643</span> fis = new FileInputStream(f);<a name="line.643"></a>
-<span class="sourceLineNo">644</span> dis = new DataInputStream(fis);<a name="line.644"></a>
-<span class="sourceLineNo">645</span> int numRegions = dis.readInt();<a name="line.645"></a>
-<span class="sourceLineNo">646</span> int index = 0;<a name="line.646"></a>
-<span class="sourceLineNo">647</span> while (index < numRegions) {<a name="line.647"></a>
-<span class="sourceLineNo">648</span> regions.add(HRegionInfo.parseFromOrNull(Bytes.readByteArray(dis)));<a name="line.648"></a>
-<span class="sourceLineNo">649</span> index++;<a name="line.649"></a>
-<span class="sourceLineNo">650</span> }<a name="line.650"></a>
-<span class="sourceLineNo">651</span> } catch (IOException e) {<a name="line.651"></a>
-<span class="sourceLineNo">652</span> LOG.error("Error while reading regions from file:" + filename, e);<a name="line.652"></a>
-<span class="sourceLineNo">653</span> throw e;<a name="line.653"></a>
-<span class="sourceLineNo">654</span> } finally {<a name="line.654"></a>
-<span class="sourceLineNo">655</span> if (dis != null) {<a name="line.655"></a>
-<span class="sourceLineNo">656</span> dis.close();<a name="line.656"></a>
-<span class="sourceLineNo">657</span> }<a name="line.657"></a>
-<span class="sourceLineNo">658</span> if (fis != null) {<a name="line.658"></a>
-<span class="sourceLineNo">659</span> fis.close();<a name="line.659"></a>
-<span class="sourceLineNo">660</span> }<a name="line.660"></a>
-<span class="sourceLineNo">661</span> }<a name="line.661"></a>
-<span class="sourceLineNo">662</span> return regions;<a name="line.662"></a>
-<span class="sourceLineNo">663</span> }<a name="line.663"></a>
-<span class="sourceLineNo">664</span><a name="line.664"></a>
-<span class="sourceLineNo">665</span> /**<a name="line.665"></a>
-<span class="sourceLineNo">666</span> * Get online regions of the passed server<a name="line.666"></a>
-<span class="sourceLineNo">667</span> * @param conf<a name="line.667"></a>
-<span class="sourceLineNo">668</span> * @param server<a name="line.668"></a>
-<span class="sourceLineNo">669</span> * @return List of Regions online on the server<a name="line.669"></a>
-<span class="sourceLineNo">670</span> * @throws IOException<a name="line.670"></a>
-<span class="sourceLineNo">671</span> */<a name="line.671"></a>
-<span class="sourceLineNo">672</span> private List<HRegionInfo> getRegions(Configuration conf, String server) throws IOException {<a name="line.672"></a>
-<span class="sourceLineNo">673</span> Connection conn = ConnectionFactory.createConnection(conf);<a name="line.673"></a>
-<span class="sourceLineNo">674</span> try {<a name="line.674"></a>
-<span class="sourceLineNo">675</span> return conn.getAdmin().getOnlineRegions(ServerName.valueOf(server));<a name="line.675"></a>
-<span class="sourceLineNo">676</span> } finally {<a name="line.676"></a>
-<span class="sourceLineNo">677</span> conn.close();<a name="line.677"></a>
-<span class="sourceLineNo">678</span> }<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> * Write the number of regions moved in the first line followed by regions moved in subsequent<a name="line.682"></a>
-<span class="sourceLineNo">683</span> * lines<a name="line.683"></a>
-<span class="sourceLineNo">684</span> * @param filename<a name="line.684"></a>
-<span class="sourceLineNo">685</span> * @param movedRegions<a name="line.685"></a>
-<span class="sourceLineNo">686</span> * @throws IOException<a name="line.686"></a>
-<span class="sourceLineNo">687</span> */<a name="line.687"></a>
-<span class="sourceLineNo">688</span> private void writeFile(String filename, List<HRegionInfo> movedRegions) throws IOException {<a name="line.688"></a>
-<span class="sourceLineNo">689</span> FileOutputStream fos = null;<a name="line.689"></a>
-<span class="sourceLineNo">690</span> DataOutputStream dos = null;<a name="line.690"></a>
-<span class="sourceLineNo">691</span> try {<a name="line.691"></a>
-<span class="sourceLineNo">692</span> fos = new FileOutputStream(filename);<a name="line.692"></a>
-<span class="sourceLineNo">693</span> dos = new DataOutputStream(fos);<a name="line.693"></a>
-<span class="sourceLineNo">694</span> dos.writeInt(movedRegions.size());<a name="line.694"></a>
-<span class="sourceLineNo">695</span> for (HRegionInfo region : movedRegions) {<a name="line.695"></a>
-<span class="sourceLineNo">696</span> Bytes.writeByteArray(dos, region.toByteArray());<a name="line.696"></a>
-<span class="sourceLineNo">697</span> }<a name="line.697"></a>
-<span class="sourceLineNo">698</span> } catch (IOException e) {<a name="line.698"></a>
-<span class="sourceLineNo">699</span> LOG.error("ERROR: Was Not able to write regions moved to output file but moved "<a name="line.699"></a>
-<span class="sourceLineNo">700</span> + movedRegions.size() + " regions", e);<a name="line.700"></a>
-<span class="sourceLineNo">701</span> throw e;<a name="line.701"></a>
-<span class="sourceLineNo">702</span> } finally {<a name="line.702"></a>
-<span class="sourceLineNo">703</span> if (dos != null) {<a name="line.703"></a>
-<span class="sourceLineNo">704</span> dos.close();<a name="line.704"></a>
-<span class="sourceLineNo">705</span> }<a name="line.705"></a>
-<span class="sourceLineNo">706</span> if (fos != null) {<a name="line.706"></a>
-<span class="sourceLineNo">707</span> fos.close();<a name="line.707"></a>
-<span class="sourceLineNo">708</span> }<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> /**<a name="line.712"></a>
-<span class="sourceLineNo">713</span> * Excludes the servername whose hostname and port portion matches the list given in exclude file<a name="line.713"></a>
-<span class="sourceLineNo">714</span> * @param regionServers<a name="line.714"></a>
-<span class="sourceLineNo">715</span> * @param excludeFile<a name="line.715"></a>
-<span class="sourceLineNo">716</span> * @throws IOException<a name="line.716"></a>
-<span class="sourceLineNo">717</span> */<a name="line.717"></a>
-<span class="sourceLineNo">718</span> private void stripExcludes(ArrayList<String> regionServers, String excludeFile)<a name="line.718"></a>
-<span class="sourceLineNo">719</span> throws IOException {<a name="line.719"></a>
-<span class="sourceLineNo">720</span> if (excludeFile != null) {<a name="line.720"></a>
-<span class="sourceLineNo">721</span> ArrayList<String> excludes = readExcludes(excludeFile);<a name="line.721"></a>
-<span class="sourceLineNo">722</span> Iterator<String> i = regionServers.iterator();<a name="line.722"></a>
-<span class="sourceLineNo">723</span> while (i.hasNext()) {<a name="line.723"></a>
-<span class="sourceLineNo">724</span> String rs = i.next();<a name="line.724"></a>
-<span class="sourceLineNo">725</span> String rsPort =<a name="line.725"></a>
-<span class="sourceLineNo">726</span> rs.split(ServerName.SERVERNAME_SEPARATOR)[0] + ":"<a name="line.726"></a>
-<span class="sourceLineNo">727</span> + rs.split(ServerName.SERVERNAME_SEPARATOR)[1];<a name="line.727"></a>
-<span class="sourceLineNo">728</span> if (excludes.contains(rsPort)) {<a name="line.728"></a>
-<span class="sourceLineNo">729</span> i.remove();<a name="line.729"></a>
-<span class="sourceLineNo">730</span> }<a name="line.730"></a>
-<span class="sourceLineNo">731</span> }<a name="line.731"></a>
-<span class="sourceLineNo">732</span> LOG.info("Valid Region server targets are:" + regionServers.toString());<a name="line.732"></a>
-<span class="sourceLineNo">733</span> LOG.info("Excluded Servers are" + excludes.toString());<a name="line.733"></a>
-<span class="sourceLineNo">734</span> }<a name="line.734"></a>
-<span class="sourceLineNo">735</span> }<a name="line.735"></a>
-<span class="sourceLineNo">736</span><a name="line.736"></a>
-<span class="sourceLineNo">737</span> /**<a name="line.737"></a>
-<span class="sourceLineNo">738</span> * Exclude master from list of RSs to move regions to<a name="line.738"></a>
-<span class="sourceLineNo">739</span> * @param regionServers<a name="line.739"></a>
-<span class="sourceLineNo">740</span> * @param admin<a name="line.740"></a>
-<span class="sourceLineNo">741</span> * @throws IOException<a name="line.741"></a>
-<span class="sourceLineNo">742</span> */<a name="line.742"></a>
-<span class="sourceLineNo">743</span> private void stripMaster(ArrayList<String> regionServers, Admin admin) throws IOException {<a name="line.743"></a>
-<span class="sourceLineNo">744</span> String masterHostname = admin.getClusterStatus().getMaster().getHostname();<a name="line.744"></a>
-<span class="sourceLineNo">745</span> int masterPort = admin.getClusterStatus().getMaster().getPort();<a name="line.745"></a>
-<span class="sourceLineNo">746</span> try {<a name="line.746"></a>
-<span class="sourceLineNo">747</span> stripServer(regionServers, masterHostname, masterPort);<a name="line.747"></a>
-<span class="sourceLineNo">748</span> } catch (Exception e) {<a name="line.748"></a>
-<span class="sourceLineNo">749</span> LOG.warn("Could not remove master from list of RS", e);<a name="line.749"></a>
-<span class="sourceLineNo">750</span> }<a name="line.750"></a>
-<span class="sourceLineNo">751</span> }<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> * @return List of servers from the exclude file in format 'hostname:port'.<a name="line.754"></a>
-<span class="sourceLineNo">755</span> */<a name="line.755"></a>
-<span class="sourceLineNo">756</span> private ArrayList<String> readExcludes(String excludeFile) throws IOException {<a name="line.756"></a>
-<span class="sourceLineNo">757</span> ArrayList<String> excludeServers = new ArrayList<String>();<a name="line.757"></a>
-<span class="sourceLineNo">758</span> if (excludeFile == null) {<a name="line.758"></a>
-<span class="sourceLineNo">759</span> return excludeServers;<a name="line.759"></a>
-<span class="sourceLineNo">760</span> } else {<a name="line.760"></a>
-<span class="sourceLineNo">761</span> File f = new File(excludeFile);<a name="line.761"></a>
-<span class="sourceLineNo">762</span> String line;<a name="line.762"></a>
-<span class="sourceLineNo">763</span> BufferedReader br = null;<a name="line.763"></a>
-<span class="sourceLineNo">764</span> try {<a name="line.764"></a>
-<span class="sourceLineNo">765</span> br = new BufferedReader(new FileReader(f));<a name="line.765"></a>
-<span class="sourceLineNo">766</span> while ((line = br.readLine()) != null) {<a name="line.766"></a>
-<span class="sourceLineNo">767</span> line.trim();<a name="line.767"></a>
-<span class="sourceLineNo">768</span> if (!line.equals("")) {<a name="line.768"></a>
-<span class="sourceLineNo">769</span> excludeServers.add(line);<a name="line.769"></a>
-<span class="sourceLineNo">770</span> }<a name="line.770"></a>
-<span class="sourceLineNo">771</span> }<a name="line.771"></a>
-<span class="sourceLineNo">772</span> } catch (IOException e) {<a name="line.772"></a>
-<span class="sourceLineNo">773</span> LOG.warn("Exception while reading excludes file,continuing anyways", e);<a name="line.773"></a>
-<span class="sourceLineNo">774</span> } finally {<a name="line.774"></a>
-<span class="sourceLineNo">775</span> if (br != null) {<a name="line.775"></a>
-<span class="sourceLineNo">776</span> br.close();<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> return excludeServers;<a name="line.779"></a>
-<span class="sourceLineNo">780</span> }<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> * Remove the servername whose hostname and port portion matches from the passed array of servers.<a name="line.784"></a>
-<span class="sourceLineNo">785</span> * Returns as side-effect the servername removed.<a name="line.785"></a>
-<span class="sourceLineNo">786</span> * @param regionServers<a name="line.786"></a>
-<span class="sourceLineNo">787</span> * @param hostname<a name="line.787"></a>
-<span class="sourceLineNo">788</span> * @param port<a name="line.788"></a>
-<span class="sourceLineNo">789</span> * @return server removed from list of Region Servers<a name="line.789"></a>
-<span class="sourceLineNo">790</span> * @throws Exception<a name="line.790"></a>
-<span class="sourceLineNo">791</span> */<a name="line.791"></a>
-<span class="sourceLineNo">792</span> private String stripServer(ArrayList<String> regionServers, String hostname, int port)<a name="line.792"></a>
-<span class="sourceLineNo">793</span> throws Exception {<a name="line.793"></a>
-<span class="sourceLineNo">794</span> String server = null;<a name="line.794"></a>
-<span class="sourceLineNo">795</span> String portString = Integer.toString(port);<a name="line.795"></a>
-<span class="sourceLineNo">796</span> Iterator<String> i = regionServers.iterator();<a name="line.796"></a>
-<span class="sourceLineNo">797</span> int noOfRs = regionServers.size();<a name="line.797"></a>
-<span class="sourceLineNo">798</span> while (i.hasNext()) {<a name="line.798"></a>
-<span class="sourceLineNo">799</span> server = i.next();<a name="line.799"></a>
-<span class="sourceLineNo">800</span> String[] splitServer = server.split(ServerName.SERVERNAME_SEPARATOR);<a name="line.800"></a>
-<span class="sourceLineNo">801</span> if (splitServer[0].equals(hostname) && splitServer[1].equals(portString)) {<a name="line.801"></a>
-<span class="sourceLineNo">802</span> i.remove();<a name="line.802"></a>
-<span class="sourceLineNo">803</span> return server;<a name="line.803"></a>
-<span class="sourceLineNo">804</span> }<a name="line.804"></a>
-<span class="sourceLineNo">805</span> }<a name="line.805"></a>
-<span class="sourceLineNo">806</span> if (regionServers.size() >= noOfRs) {<a name="line.806"></a>
-<span class="sourceLineNo">807</span> throw new Exception("Server " + hostname + ":" + Integer.toString(port)<a name="line.807"></a>
-<span class="sourceLineNo">808</span> + " is not in list of online servers(Offline/Incorrect)");<a name="line.808"></a>
-<span class="sourceLineNo">809</span> }<a name="line.809"></a>
-<span class="sourceLineNo">810</span> return server;<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> /**<a name="line.813"></a>
-<span class="sourceLineNo">814</span> * Get Arraylist of Servers in the cluster<a name="line.814"></a>
-<span class="sourceLineNo">815</span> * @param admin<a name="line.815"></a>
-<span class="sourceLineNo">816</span> * @return ArrayList of online region servers<a name="line.816"></a>
-<span class="sourceLineNo">817</span> * @throws IOException<a name="line.817"></a>
-<span class="sourceLineNo">818</span> */<a name="line.818"></a>
-<span class="sourceLineNo">819</span> private ArrayList<String> getServers(Admin admin) throws IOException {<a name="line.819"></a>
-<span class="sourceLineNo">820</span> ArrayList<ServerName> serverInfo =<a name="line.820"></a>
-<span class="sourceLineNo">821</span> new ArrayList<ServerName>(admin.getClusterStatus().getServers());<a name="line.821"></a>
-<span class="sourceLineNo">822</span> ArrayList<String> regionServers = new ArrayList<String>();<a name="line.822"></a>
-<span class="sourceLineNo">823</span> for (ServerName server : serverInfo) {<a name="line.823"></a>
-<span class="sourceLineNo">824</span> regionServers.add(server.getServerName());<a name="line.824"></a>
-<span class="sourceLineNo">825</span> }<a name="line.825"></a>
-<span class="sourceLineNo">826</span> return regionServers;<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 deleteFile(String filename) {<a name="line.829"></a>
-<span class="sourceLineNo">830</span> File f = new File(filename);<a name="line.830"></a>
-<span class="sourceLineNo">831</span> if (f.exists()) {<a name="line.831"></a>
-<span class="sourceLineNo">832</span> f.delete();<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> /**<a name="line.836"></a>
-<span class="sourceLineNo">837</span> * Tries to scan a row from passed region<a name="line.837"></a>
-<span class="sourceLineNo">838</span> * @param admin<a name="line.838"></a>
-<span class="sourceLineNo">839</span> * @param region<a name="line.839"></a>
-<span class="sourceLineNo">840</span> * @throws IOException<a name="line.840"></a>
-<span class="sourceLineNo">841</span> */<a name="line.841"></a>
-<span class="sourceLineNo">842</span> private void isSuccessfulScan(Admin admin, HRegionInfo region) throws IOException {<a name="line.842"></a>
-<span class="sourceLineNo">843</span> Scan scan = new Scan(region.getStartKey());<a name="line.843"></a>
-<span class="sourceLineNo">844</span> scan.setBatch(1);<a name="line.844"></a>
-<span class="sourceLineNo">845</span> scan.setCaching(1);<a name="line.845"></a>
-<span class="sourceLineNo">846</span> scan.setFilter(new FirstKeyOnlyFilter());<a name="line.846"></a>
-<span class="sourceLineNo">847</span> try {<a name="line.847"></a>
-<span class="sourceLineNo">848</span> Table table = admin.getConnection().getTable(region.getTable());<a name="line.848"></a>
-<span class="sourceLineNo">849</span> try {<a name="line.849"></a>
-<span class="sourceLineNo">850</span> ResultScanner scanner = table.getScanner(scan);<a name="line.850"></a>
-<span class="sourceLineNo">851</span> try {<a name="line.851"></a>
-<span class="sourceLineNo">852</span> scanner.next();<a name="line.852"></a>
-<span class="sourceLineNo">853</span> } finally {<a name="line.853"></a>
-<span class="sourceLineNo">854</span> scanner.close();<a name="line.854"></a>
-<span class="sourceLineNo">855</span> }<a name="line.855"></a>
-<span class="sourceLineNo">856</span> } finally {<a name="line.856"></a>
-<span class="sourceLineNo">857</span> table.close();<a name="line.857"></a>
-<span class="sourceLineNo">858</span> }<a name="line.858"></a>
-<span class="sourceLineNo">859</span> } catch (IOException e) {<a name="line.859"></a>
-<span class="sourceLineNo">860</span> LOG.error("Could not scan region:" + region.getEncodedName(), e);<a name="line.860"></a>
-<span class="sourceLineNo">861</span> throw e;<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><a name="line.864"></a>
-<span class="sourceLineNo">865</span> /**<a name="line.865"></a>
-<span class="sourceLineNo">866</span> * Returns true if passed region is still on serverName when we look at hbase:meta.<a name="line.866"></a>
-<span class="sourceLineNo">867</span> * @param admin<a name="line.867"></a>
-<span class="sourceLineNo">868</span> * @param region<a name="line.868"></a>
-<span class="sourceLineNo">869</span> * @param serverName<a name="line.869"></a>
-<span class="sourceLineNo">870</span> * @return true if region is hosted on serverName otherwise false<a name="line.870"></a>
-<span class="sourceLineNo">871</span> * @throws IOException<a name="line.871"></a>
-<span class="sourceLineNo">872</span> */<a name="line.872"></a>
-<span class="sourceLineNo">873</span> private boolean isSameServer(Admin admin, HRegionInfo region, String serverName)<a name="line.873"></a>
-<span class="sourceLineNo">874</span> throws IOException {<a name="line.874"></a>
-<span class="sourceLineNo">875</span> String serverForRegion = getServerNameForRegion(admin, region);<a name="line.875"></a>
-<span class="sourceLineNo">876</span> if (serverForRegion != null && serverForRegion.equals(serverName)) {<a name="line.876"></a>
-<span class="sourceLineNo">877</span> return true;<a name="line.877"></a>
-<span class="sourceLineNo">878</span> }<a name="line.878"></a>
-<span class="sourceLineNo">879</span> return false;<a name="line.879"></a>
-<span class="sourceLineNo">880</span> }<a name="line.880"></a>
-<span class="sourceLineNo">881</span><a name="line.881"></a>
-<span class="sourceLineNo">882</span> /**<a name="line.882"></a>
-<span class="sourceLineNo">883</span> * Get servername that is up in hbase:meta hosting the given region. this is hostname + port +<a name="line.883"></a>
-<span class="sourceLineNo">884</span> * startcode comma-delimited. Can return null<a name="line.884"></a>
-<span class="sourceLineNo">885</span> * @param admin<a name="line.885"></a>
-<span class="sourceLineNo">886</span> * @param region<a name="line.886"></a>
-<span class="sourceLineNo">887</span> * @return regionServer hosting the given region<a name="line.887"></a>
-<span class="sourceLineNo">888</span> * @throws IOException<a name="line.888"></a>
-<span class="sourceLineNo">889</span> */<a name="line.889"></a>
-<span class="sourceLineNo">890</span> private String getServerNameForRegion(Admin admin, HRegionInfo region) throws IOException {<a name="line.890"></a>
-<span class="sourceLineNo">891</span> String server = null;<a name="line.891"></a>
-<span class="sourceLineNo">892</span> if (!admin.isTableEnabled(region.getTable())) {<a name="line.892"></a>
-<span class="sourceLineNo">893</span> return null;<a name="line.893"></a>
-<span class="sourceLineNo">894</span> }<a name="line.894"></a>
-<span class="sourceLineNo">895</span> if (region.isMetaRegion()) {<a name="line.895"></a>
-<span class="sourceLineNo">896</span> ZooKeeperWatcher zkw = new ZooKeeperWatcher(admin.getConfiguration(), "region_mover", null);<a name="line.896"></a>
-<span class="sourceLineNo">897</span> MetaTableLocator locator = new MetaTableLocator();<a name="line.897"></a>
-<span class="sourceLineNo">898</span> int maxWaitInSeconds =<a name="line.898"></a>
-<span class="sourceLineNo">899</span> admin.getConfiguration().getInt(MOVE_WAIT_MAX_KEY, DEFAULT_MOVE_WAIT_MAX);<a name="line.899"></a>
-<span class="sourceLineNo">900</span> try {<a name="line.900"></a>
-<span class="sourceLineNo">901</span> server = locator.waitMetaRegionLocation(zkw, maxWaitInSeconds * 1000).toString() + ",";<a name="line.901"></a>
-<span class="sourceLineNo">902</span> } catch (InterruptedException e) {<a name="line.902"></a>
-<span class="sourceLineNo">903</span> LOG.error("Interrupted while waiting for location of Meta", e);<a name="line.903"></a>
-<span class="sourceLineNo">904</span> } finally {<a name="line.904"></a>
-<span class="sourceLineNo">905</span> if (zkw != null) {<a name="line.905"></a>
-<span class="sourceLineNo">906</span> zkw.close();<a name="line.906"></a>
-<span class="sourceLineNo">907</span> }<a name="line.907"></a>
-<span class="sourceLineNo">908</span> }<a name="line.908"></a>
-<span class="sourceLineNo">909</span> } else {<a name="line.909"></a>
-<span class="sourceLineNo">910</span> Table table = admin.getConnection().getTable(TableName.META_TABLE_NAME);<a name="line.910"></a>
-<span class="sourceLineNo">911</span> try {<a name="line.911"></a>
-<span class="sourceLineNo">912</span> Get get = new Get(region.getRegionName());<a name="line.912"></a>
-<span class="sourceLineNo">913</span> get.addColumn(HConstants.CATALOG_FAMILY, HConstants.SERVER_QUALIFIER);<a name="line.913"></a>
-<span class="sourceLineNo">914</span> get.addColumn(HConstants.CATALOG_FAMILY, HConstants.STARTCODE_QUALIFIER);<a name="line.914"></a>
-<span class="sourceLineNo">915</span> Result result = table.get(get);<a name="line.915"></a>
-<span class="sourceLineNo">916</span> if (result != null) {<a name="line.916"></a>
-<span class="sourceLineNo">917</span> byte[] servername =<a name="line.917"></a>
-<span class="sourceLineNo">918</span> result.getValue(HConstants.CATALOG_FAMILY, HConstants.SERVER_QUALIFIER);<a name="line.918"></a>
-<span class="sourceLineNo">919</span> byte[] startcode =<a name="line.919"></a>
-<span class="sourceLineNo">920</span> result.getValue(HConstants.CATALOG_FAMILY, HConstants.STARTCODE_QUALIFIER);<a name="line.920"></a>
-<span class="sourceLineNo">921</span> if (servername != null) {<a name="line.921"></a>
-<span class="sourceLineNo">922</span> server =<a name="line.922"></a>
-<span class="sourceLineNo">923</span> Bytes.toString(servername).replaceFirst(":", ",") + "," + Bytes.toLong(startcode);<a name="line.923"></a>
-<span class="sourceLineNo">924</span> }<a name="line.924"></a>
-<span class="sourceLineNo">925</span> }<a name="line.925"></a>
-<span class="sourceLineNo">926</span> } catch (IOException e) {<a name="line.926"></a>
-<span class="sourceLineNo">927</span> LOG.error("Could not get Server Name for region:" + region.getEncodedName(), e);<a name="line.927"></a>
-<span class="sourceLineNo">928</span> throw e;<a name="line.928"></a>
-<span class="sourceLineNo">929</span> } finally {<a name="line.929"></a>
-<span class="sourceLineNo">930</span> table.close();<a name="line.930"></a>
-<span class="sourceLineNo">931</span> }<a name="line.931"></a>
-<span class="sourceLineNo">932</span> }<a name="line.932"></a>
-<span class="sourceLineNo">933</span> return server;<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> @Override<a name="line.936"></a>
-<span class="sourceLineNo">937</span> protected void addOptions() {<a name="line.937"></a>
-<span class="sourceLineNo">938</span> this.addRequiredOptWithArg("r", "regionserverhost", "region server <hostname>|<hostname:port>");<a name="line.938"></a>
-<span class="sourceLineNo">939</span> this.addRequiredOptWithArg("o", "operation", "Expected: load/unload");<a name="line.939"></a>
-<span class="sourceLineNo">940</span> this.addOptWithArg("m", "maxthreads",<a name="line.940"></a>
-<span class="sourceLineNo">941</span> "Define the maximum number of threads to use to unload and reload the regions");<a name="line.941"></a>
-<span class="sourceLineNo">942</span> this.addOptWithArg("x", "excludefile",<a name="line.942"></a>
-<span class="sourceLineNo">943</span> "File with <hostname:port> per line to exclude as unload targets; default excludes only "<a name="line.943"></a>
-<span class="sourceLineNo">944</span> + "target host; useful for rack decommisioning.");<a name="line.944"></a>
-<span class="sourceLineNo">945</span> this.addOptWithArg("f", "filename",<a name="line.945"></a>
-<span class="sourceLineNo">946</span> "File to save regions list into unloading, or read from loading; "<a name="line.946"></a>
-<span class="sourceLineNo">947</span> + "default /tmp/<usernamehostname:port>");<a name="line.947"></a>
-<span class="sourceLineNo">948</span> this.addOptNoArg("n", "noack",<a name="line.948"></a>
-<span class="sourceLineNo">949</span> "Turn on No-Ack mode(default: false) which won't check if region is online on target "<a name="line.949"></a>
-<span class="sourceLineNo">950</span> + "RegionServer, hence best effort. This is more performant in unloading and loading "<a name="line.950"></a>
-<span class="sourceLineNo">951</span> + "but might lead to region being unavailable for some time till master reassigns it "<a name="line.951"></a>
-<span class="sourceLineNo">952</span> + "in case the move failed");<a name="line.952"></a>
-<span class="sourceLineNo">953</span> this.addOptWithArg("t", "timeout", "timeout in seconds after which the tool will exit "<a name="line.953"></a>
-<span class="sourceLineNo">954</span> + "irrespective of whether it finished or not;default Integer.MAX_VALUE");<a name="line.954"></a>
-<span class="sourceLineNo">955</span> }<a name="line.955"></a>
-<span class="sourceLineNo">956</span><a name="line.956"></a>
-<span class="sourceLineNo">957</span> @Override<a name="line.957"></a>
-<span class="sourceLineNo">958</span> protected void processOptions(CommandLine cmd) {<a name="line.958"></a>
-<span class="sourceLineNo">959</span> String hostname = cmd.getOptionValue("r");<a name="line.959"></a>
-<span class="sourceLineNo">960</span> rmbuilder = new RegionMoverBuilder(hostname);<a name="line.960"></a>
-<span class="sourceLineNo">961</span> if (cmd.hasOption('m')) {<a name="line.961"></a>
-<span class="sourceLineNo">962</span> rmbuilder.maxthreads(Integer.parseInt(cmd.getOptionValue('m')));<a name="line.962"></a>
-<span class="sourceLineNo">963</span> }<a name="line.963"></a>
-<span class="sourceLineNo">964</span> if (cmd.hasOption('n')) {<a name="line.964"></a>
-<span class="sourceLineNo">965</span> rmbuilder.ack(false);<a name="line.965"></a>
-<span class="sourceLineNo">966</span> }<a name="line.966"></a>
-<span class="sourceLineNo">967</span> if (cmd.hasOption('f')) {<a name="line.967"></a>
-<span class="sourceLineNo">968</span> rmbuilder.filename(cmd.getOptionValue('f'));<a name="line.968"></a>
-<span class="sourceLineNo">969</span> }<a name="line.969"></a>
-<span class="sourceLineNo">970</span> if (cmd.hasOption('x')) {<a name="line.970"></a>
-<span class="sourceLineNo">971</span> rmbuilder.excludeFile(cmd.getOptionValue('x'));<a name="line.971"></a>
-<span class="sourceLineNo">972</span> }<a name="line.972"></a>
-<span class="sourceLineNo">973</span> if (cmd.hasOption('t')) {<a name="line.973"></a>
-<span class="sourceLineNo">974</span> rmbuilder.timeout(Integer.parseInt(cmd.getOptionValue('t')));<a name="line.974"></a>
-<span class="sourceLineNo">975</span> }<a name="line.975"></a>
-<span class="sourceLineNo">976</span> this.loadUnload = cmd.getOptionValue("o").toLowerCase();<a name="line.976"></a>
-<span class="sourceLineNo">977</span> }<a name="line.977"></a>
-<span class="sourceLineNo">978</span><a name="line.978"></a>
-<span class="sourceLineNo">979</span> @Override<a name="line.979"></a>
-<span class="sourceLineNo">980</span> protected int doWork() throws Exception {<a name="line.980"></a>
-<span class="sourceLineNo">981</span> boolean success;<a name="line.981"></a>
-<span class="sourceLineNo">982</span> RegionMover rm = rmbuilder.build();<a name="line.982"></a>
-<span class="sourceLineNo">983</span> if (loadUnload.equalsIgnoreCase("load")) {<a name="line.983"></a>
-<span class="sourceLineNo">984</span> success = rm.load();<a name="line.984"></a>
-<span class="sourceLineNo">985</span> } else if (loadUnload.equalsIgnoreCase("unload")) {<a name="line.985"></a>
-<span class="sourceLineNo">986</span> success = rm.unload();<a name="line.986"></a>
-<span class="sourceLineNo">987</span> } else {<a name="line.987"></a>
-<span class="sourceLineNo">988</span> printUsage();<a name="line.988"></a>
-<span class="sourceLineNo">989</span> success = false;<a name="line.989"></a>
-<span class="sourceLineNo">990</span> }<a name="line.990"></a>
-<span class="sourceLineNo">991</span> return (success ? 0 : 1);<a name="line.991"></a>
-<span class="sourceLineNo">992</span> }<a name="line.992"></a>
-<span class="sourceLineNo">993</span><a name="line.993"></a>
-<span class="sourceLineNo">994</span> public static void main(String[] args) {<a name="line.994"></a>
-<span class="sourceLineNo">995</span> new RegionMover().doStaticMain(args);<a name="line.995"></a>
-<span class="sourceLineNo">996</span> }<a name="line.996"></a>
-<span class="sourceLineNo">997</span>}<a name="line.997"></a>
+<span class="sourceLineNo">458</span> @edu.umd.cs.findbugs.annotations.SuppressWarnings(value="DLS_DEAD_LOCAL_STORE",<a name="line.458"></a>
+<span class="sourceLineNo">459</span> justification="FB is wrong; its size is read")<a name="line.459"></a>
+<span class="sourceLineNo">460</span> private void unloadRegions(Admin admin, String server, ArrayList<String> regionServers,<a name="line.460"></a>
+<span class="sourceLineNo">461</span> boolean ack, List<HRegionInfo> movedRegions) throws Exception {<a name="line.461"></a>
+<span class="sourceLineNo">462</span> List<HRegionInfo> regionsToMove = new ArrayList<HRegionInfo>();// FindBugs: DLS_DEAD_LOCAL_STORE<a name="line.462"></a>
+<span class="sourceLineNo">463</span> regionsToMove = getRegions(this.conf, server);<a name="line.463"></a>
+<span class="sourceLineNo">464</span> if (regionsToMove.size() == 0) {<a name="line.464"></a>
+<span class="sourceLineNo">465</span> LOG.info("No Regions to move....Quitting now");<a name="line.465"></a>
+<span class="sourceLineNo">466</span> return;<a name="line.466"></a>
+<span class="sourceLineNo">467</span> } else if (regionServers.size() == 0) {<a name="line.467"></a>
+<span class="sourceLineNo">468</span> LOG.warn("No Regions were moved - no servers available");<a name="line.468"></a>
+<span class="sourceLineNo">469</span> throw new Exception("No online region servers");<a name="line.469"></a>
+<span class="sourceLineNo">470</span> }<a name="line.470"></a>
+<span class="sourceLineNo">471</span> while (true) {<a name="line.471"></a>
+<span class="sourceLineNo">472</span> regionsToMove = getRegions(this.conf, server);<a name="line.472"></a>
+<span class="sourceLineNo">473</span> regionsToMove.removeAll(movedRegions);<a name="line.473"></a>
+<span class="sourceLineNo">474</span> if (regionsToMove.size() == 0) {<a name="line.474"></a>
+<span class="sourceLineNo">475</span> break;<a name="line.475"></a>
+<span class="sourceLineNo">476</span> }<a name="line.476"></a>
+<span class="sourceLineNo">477</span> int counter = 0;<a name="line.477"></a>
+<span class="sourceLineNo">478</span> LOG.info("Moving " + regionsToMove.size() + " regions from " + this.hostname + " to "<a name="line.478"></a>
+<span class="sourceLineNo">479</span> + regionServers.size() + " servers using " + this.maxthreads + " threads .Ack Mode:"<a name="line.479"></a>
+<span class="sourceLineNo">480</span> + ack);<a name="line.480"></a>
+<span class="sourceLineNo">481</span> ExecutorService moveRegionsPool = Executors.newFixedThreadPool(this.maxthreads);<a name="line.481"></a>
+<span class="sourceLineNo">482</span> List<Future<Boolean>> taskList = new ArrayList<Future<Boolean>>();<a name="line.482"></a>
+<span class="sourceLineNo">483</span> int serverIndex = 0;<a name="line.483"></a>
+<span class="sourceLineNo">484</span> while (counter < regionsToMove.size()) {<a name="line.484"></a>
+<span class="sourceLineNo">485</span> if (ack) {<a name="line.485"></a>
+<span class="sourceLineNo">486</span> Future<Boolean> task =<a name="line.486"></a>
+<span class="sourceLineNo">487</span> moveRegionsPool.submit(new MoveWithAck(admin, regionsToMove.get(counter), server,<a name="line.487"></a>
+<span class="sourceLineNo">488</span> regionServers.get(serverIndex), movedRegions));<a name="line.488"></a>
+<span class="sourceLineNo">489</span> taskList.add(task);<a name="line.489"></a>
+<span class="sourceLineNo">490</span> } else {<a name="line.490"></a>
+<span class="sourceLineNo">491</span> Future<Boolean> task =<a name="line.491"></a>
+<span class="sourceLineNo">492</span> moveRegionsPool.submit(new MoveWithoutAck(admin, regionsToMove.get(counter), server,<a name="line.492"></a>
+<span class="sourceLineNo">493</span> regionServers.get(serverIndex), movedRegions));<a name="line.493"></a>
+<span class="sourceLineNo">494</span> taskList.add(task);<a name="line.494"></a>
+<span class="sourceLineNo">495</span> }<a name="line.495"></a>
+<span class="sourceLineNo">496</span> counter++;<a name="line.496"></a>
+<span class="sourceLineNo">497</span> serverIndex = (serverIndex + 1) % regionServers.size();<a name="line.497"></a>
+<span class="sourceLineNo">498</span> }<a name="line.498"></a>
+<span class="sourceLineNo">499</span> moveRegionsPool.shutdown();<a name="line.499"></a>
+<span class="sourceLineNo">500</span> long timeoutInSeconds =<a name="line.500"></a>
+<span class="sourceLineNo">501</span> regionsToMove.size()<a name="line.501"></a>
+<span class="sourceLineNo">502</span> * admin.getConfiguration().getInt(MOVE_WAIT_MAX_KEY, DEFAULT_MOVE_WAIT_MAX);<a name="line.502"></a>
+<span class="sourceLineNo">503</span> try {<a name="line.503"></a>
+<span class="sourceLineNo">504</span> if (!moveRegionsPool.awaitTermination(timeoutInSeconds, TimeUnit.SECONDS)) {<a name="line.504"></a>
+<span class="sourceLineNo">505</span> moveRegionsPool.shutdownNow();<a name="line.505"></a>
+<span class="sourceLineNo">506</span> }<a name="line.506"></a>
+<span class="sourceLineNo">507</span> } catch (InterruptedException e) {<a name="line.507"></a>
+<span class="sourceLineNo">508</span> moveRegionsPool.shutdownNow();<a name="line.508"></a>
+<span class="sourceLineNo">509</span> Thread.currentThread().interrupt();<a name="line.509"></a>
+<span class="sourceLineNo">510</span> }<a name="line.510"></a>
+<span class="sourceLineNo">511</span> for (Future<Boolean> future : taskList) {<a name="line.511"></a>
+<span class="sourceLineNo">512</span> try {<a name="line.512"></a>
+<span class="sourceLineNo">513</span> // if even after shutdownNow threads are stuck we wait for 5 secs max<a name="line.513"></a>
+<span class="sourceLineNo">514</span> if (!future.get(5, TimeUnit.SECONDS)) {<a name="line.514"></a>
+<span class="sourceLineNo">515</span> LOG.error("Was Not able to move region....Exiting Now");<a name="line.515"></a>
+<span class="sourceLineNo">516</span> throw new Exception("Could not move region Exception");<a name="line.516"></a>
+<span class="sourceLineNo">517</span> }<a name="line.517"></a>
+<span class="sourceLineNo">518</span> } catch (InterruptedException e) {<a name="line.518"></a>
+<span class="sourceLineNo">519</span> LOG.error("Interrupted while waiting for Thread to Complete " + e.getMessage(), e);<a name="line.519"></a>
+<span class="sourceLineNo">520</span> throw e;<a name="line.520"></a>
+<span class="sourceLineNo">521</span> } catch (ExecutionException e) {<a name="line.521"></a>
+<span class="sourceLineNo">522</span> LOG.error("Got Exception From Thread While moving region " + e.getMessage(), e);<a name="line.522"></a>
+<span class="sourceLineNo">523</span> throw e;<a name="line.523"></a>
+<span class="sourceLineNo">524</span> } catch (CancellationException e) {<a name="line.524"></a>
+<span class="sourceLineNo">525</span> LOG.error("Thread for moving region cancelled. Timeout for cancellation:"<a name="line.525"></a>
+<span class="sourceLineNo">526</span> + timeoutInSeconds + "secs", e);<a name="line.526"></a>
+<span class="sourceLineNo">527</span> throw e;<a name="line.527"></a>
+<span class="sourceLineNo">528</span> }<a name="line.528"></a>
+<span class="sourceLineNo">529</span> }<a name="line.529"></a>
+<span class="sourceLineNo">530</span> }<a name="line.530"></a>
+<span class="sourceLineNo">531</span> }<a name="line.531"></a>
+<span class="sourceLineNo">532</span><a name="line.532"></a>
+<span class="sourceLineNo">533</span> /**<a name="line.533"></a>
+<span class="sourceLineNo">534</span> * Move Regions and make sure that they are up on the target server.If a region movement fails we<a name="line.534"></a>
+<span class="sourceLineNo">535</span> * exit as failure<a name="line.535"></a>
+<span class="sourceLineNo">536</span> */<a name="line.536"></a>
+<span class="sourceLineNo">537</span> private class MoveWithAck implements Callable<Boolean> {<a name="line.537"></a>
+<span class="sourceLineNo">538</span> private Admin admin;<a name="line.538"></a>
+<span class="sourceLineNo">539</span> private HRegionInfo region;<a name="line.539"></a>
+<span class="sourceLineNo">540</span> private String targetServer;<a name="line.540"></a>
+<span class="sourceLineNo">541</span> private List<HRegionInfo> movedRegions;<a name="line.541"></a>
+<span class="sourceLineNo">542</span> private String sourceServer;<a name="line.542"></a>
+<span class="sourceLineNo">543</span><a name="line.543"></a>
+<span class="sourceLineNo">544</span> public MoveWithAck(Admin admin, HRegionInfo regionInfo, String sourceServer,<a name="line.544"></a>
+<span class="sourceLineNo">545</span> String targetServer, List<HRegionInfo> movedRegions) {<a name="line.545"></a>
+<span class="sourceLineNo">546</span> this.admin = admin;<a name="line.546"></a>
+<span class="sourceLineNo">547</span> this.region = regionInfo;<a name="line.547"></a>
+<span class="sourceLineNo">548</span> this.targetServer = targetServer;<a name="line.548"></a>
+<span class="sourceLineNo">549</span> this.movedRegions = movedRegions;<a name="line.549"></a>
+<span class="sourceLineNo">550</span> this.sourceServer = sourceServer;<a name="line.550"></a>
+<span class="sourceLineNo">551</span> }<a name="line.551"></a>
+<span class="sourceLineNo">552</span><a name="line.552"></a>
+<span class="sourceLineNo">553</span> @Override<a name="line.553"></a>
+<span class="sourceLineNo">554</span> public Boolean call() throws IOException, InterruptedException {<a name="line.554"></a>
+<span class="sourceLineNo">555</span> boolean moved = false;<a name="line.555"></a>
+<span class="sourceLineNo">556</span> int count = 0;<a name="line.556"></a>
+<span class="sourceLineNo">557</span> int retries = admin.getConfiguration().getInt(MOVE_RETRIES_MAX_KEY, DEFAULT_MOVE_RETRIES_MAX);<a name="line.557"></a>
+<span class="sourceLineNo">558</span> int maxWaitInSeconds =<a name="line.558"></a>
+<span class="sourceLineNo">559</span> admin.getConfiguration().getInt(MOVE_WAIT_MAX_KEY, DEFAULT_MOVE_WAIT_MAX);<a name="line.559"></a>
+<span class="sourceLineNo">560</span> long startTime = EnvironmentEdgeManager.currentTime();<a name="line.560"></a>
+<span class="sourceLineNo">561</span> boolean sameServer = true;<a name="line.561"></a>
+<span class="sourceLineNo">562</span> // Assert we can scan the region in its current location<a name="line.562"></a>
+<span class="sourceLineNo">563</span> isSuccessfulScan(admin, region);<a name="line.563"></a>
+<span class="sourceLineNo">564</span> LOG.info("Moving region:" + region.getEncodedName() + " from " + sourceServer + " to "<a name="line.564"></a>
+<span class="sourceLineNo">565</span> + targetServer);<a name="line.565"></a>
+<span class="sourceLineNo">566</span> while (count < retries && sameServer) {<a name="line.566"></a>
+<span class="sourceLineNo">567</span> if (count > 0) {<a name="line.567"></a>
+<span class="sourceLineNo">568</span> LOG.info("Retry " + Integer.toString(count) + " of maximum " + Integer.toString(retries));<a name="line.568"></a>
+<span class="sourceLineNo">569</span> }<a name="line.569"></a>
+<span class="sourceLineNo">570</span> count = count + 1;<a name="line.570"></a>
+<span class="sourceLineNo">571</span> admin.move(region.getEncodedNameAsBytes(), Bytes.toBytes(targetServer));<a name="line.571"></a>
+<span class="sourceLineNo">572</span> long maxWait = startTime + (maxWaitInSeconds * 1000);<a name="line.572"></a>
+<span class="sourceLineNo">573</span> while (EnvironmentEdgeManager.currentTime() < maxWait) {<a name="line.573"></a>
+<span class="sourceLineNo">574</span> sameServer = isSameServer(admin, region, sourceServer);<a name="line.574"></a>
+<span class="sourceLineNo">575</span> if (!sameServer) {<a name="line.575"></a>
+<span class="sourceLineNo">576</span> break;<a name="line.576"></a>
+<span class="sourceLineNo">577</span> }<a name="line.577"></a>
+<span class="sourceLineNo">578</span> Thread.sleep(100);<a name="line.578"></a>
+<span class="sourceLineNo">579</span> }<a name="line.579"></a>
+<span class="sourceLineNo">580</span> }<a name="line.580"></a>
+<span class="sourceLineNo">581</span> if (sameServer) {<a name="line.581"></a>
+<span class="sourceLineNo">582</span> LOG.error("Region: " + region.getRegionNameAsString() + " stuck on " + this.sourceServer<a name="line.582"></a>
+<span class="sourceLineNo">583</span> + ",newServer=" + this.targetServer);<a name="line.583"></a>
+<span class="sourceLineNo">584</span> } else {<a name="line.584"></a>
+<span class="sourceLineNo">585</span> isSuccessfulScan(admin, region);<a name="line.585"></a>
+<span class="sourceLineNo">586</span> LOG.info("Moved Region "<a name="line.586"></a>
+<span class="sourceLineNo">587</span> + region.getRegionNameAsString()<a name="line.587"></a>
+<span class="sourceLineNo">588</span> + " cost:"<a name="line.588"></a>
+<span class="sourceLineNo">589</span> + String.format("%.3f",<a name="line.589"></a>
+<span class="sourceLineNo">590</span> (float) (EnvironmentEdgeManager.currentTime() - startTime) / 1000));<a name="line.590"></a>
+<span class="sourceLineNo">591</span> moved = true;<a name="line.591"></a>
+<span class="sourceLineNo">592</span> movedRegions.add(region);<a name="line.592"></a>
+<span class="sourceLineNo">593</span> }<a name="line.593"></a>
+<span class="sourceLineNo">594</span> return moved;<a name="line.594"></a>
+<span class="sourceLineNo">595</span> }<a name="line.595"></a>
+<span class="sourceLineNo">596</span> }<a name="line.596"></a>
+<span class="sourceLineNo">597</span><a name="line.597"></a>
+<span class="sourceLineNo">598</span> /**<a name="line.598"></a>
+<span class="sourceLineNo">599</span> * Move Regions without Acknowledging.Usefule in case of RS shutdown as we might want to shut the<a name="line.599"></a>
+<span class="sourceLineNo">600</span> * RS down anyways and not abort on a stuck region. Improves movement performance<a name="line.600"></a>
+<span class="sourceLineNo">601</span> */<a name="line.601"></a>
+<span class="sourceLineNo">602</span> private static class MoveWithoutAck implements Callable<Boolean> {<a name="line.602"></a>
+<span class="sourceLineNo">603</span> private Admin admin;<a name="line.603"></a>
+<span class="sourceLineNo">604</span> private HRegionInfo region;<a name="line.604"></a>
+<span class="sourceLineNo">605</span> private String targetServer;<a name="line.605"></a>
+<span class="sourceLineNo">606</span> private List<HRegionInfo> movedRegions;<a name="line.606"></a>
+<span class="sourceLineNo">607</span> private String sourceServer;<a name="line.607"></a>
+<span class="sourceLineNo">608</span><a name="line.608"></a>
+<span class="sourceLineNo">609</span> public MoveWithoutAck(Admin admin, HRegionInfo regionInfo, String sourceServer,<a name="line.609"></a>
+<span class="sourceLineNo">610</span> String targetServer, List<HRegionInfo> movedRegions) {<a name="line.610"></a>
+<span class="sourceLineNo">611</span> this.admin = admin;<a name="line.611"></a>
+<span class="sourceLineNo">612</span> this.region = regionInfo;<a name="line.612"></a>
+<span class="sourceLineNo">613</span> this.targetServer = targetServer;<a name="line.613"></a>
+<span class="sourceLineNo">614</span> this.movedRegions = movedRegions;<a name="line.614"></a>
+<span class="sourceLineNo">615</span> this.sourceServer = sourceServer;<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> @Override<a name="line.618"></a>
+<span class="sourceLineNo">619</span> public Boolean call() {<a name="line.619"></a>
+<span class="sourceLineNo">620</span> try {<a name="line.620"></a>
+<span class="sourceLineNo">621</span> LOG.info("Moving region:" + region.getEncodedName() + " from " + sourceServer + " to "<a name="line.621"></a>
+<span class="sourceLineNo">622</span> + targetServer);<a name="line.622"></a>
+<span class="sourceLineNo">623</span> admin.move(region.getEncodedNameAsBytes(), Bytes.toBytes(targetServer));<a name="line.623"></a>
+<span class="sourceLineNo">624</span> LOG.info("Moved " + region.getEncodedName() + " from " + sourceServer + " to "<a name="line.624"></a>
+<span class="sourceLineNo">625</span> + targetServer);<a name="line.625"></a>
+<span class="sourceLineNo">626</span> } catch (Exception e) {<a name="line.626"></a>
+<span class="sourceLineNo">627</span> LOG.error("Error Moving Region:" + region.getEncodedName(), e);<a name="line.627"></a>
+<span class="sourceLineNo">628</span> } finally {<a name="line.628"></a>
+<span class="sourceLineNo">629</span> // we add region to the moved regions list in No Ack Mode since this is best effort<a name="line.629"></a>
+<span class="sourceLineNo">630</span> movedRegions.add(region);<a name="line.630"></a>
+<span class="sourceLineNo">631</span> }<a name="line.631"></a>
+<span class="sourceLineNo">632</span> return true;<a name="line.632"></a>
+<span class="sourceLineNo">633</span> }<a name="line.633"></a>
+<span class="sourceLineNo">634</span> }<a name="line.634"></a>
+<span class="sourceLineNo">635</span><a name="line.635"></a>
+<span class="sourceLineNo">636</span> private List<HRegionInfo> readRegionsFromFile(String filename) throws IOException {<a name="line.636"></a>
+<span class="sourceLineNo">637</span> List<HRegionInfo> regions = new ArrayList<HRegionInfo>();<a name="line.637"></a>
+<span class="sourceLineNo">638</span> File f = new File(filename);<a name="line.638"></a>
+<span class="sourceLineNo">639</span> if (!f.exists()) {<a name="line.639"></a>
+<span class="sourceLineNo">640</span> return regions;<a name="line.640"></a>
+<span class="sourceLineNo">641</span> }<a name="line.641"></a>
+<span class="sourceLineNo">642</span> FileInputStream fis = null;<a name="line.642"></a>
+<span class="sourceLineNo">643</span> DataInputStream dis = null;<a name="line.643"></a>
+<span class="sourceLineNo">644</span> try {<a name="line.644"></a>
+<span class="sourceLineNo">645</span> fis = new FileInputStream(f);<a name="line.645"></a>
+<span class="sourceLineNo">646</span> dis = new DataInputStream(fis);<a name="line.646"></a>
+<span class="sourceLineNo">647</span> int numRegions = dis.readInt();<a name="line.647"></a>
+<span class="sourceLineNo">648</span> int index = 0;<a name="line.648"></a>
+<span class="sourceLineNo">649</span> while (index < numRegions) {<a name="line.649"></a>
+<span class="sourceLineNo">650</span> regions.add(HRegionInfo.parseFromOrNull(Bytes.readByteArray(dis)));<a name="line.650"></a>
+<span class="sourceLineNo">651</span> index++;<a name="line.651"></a>
+<span class="sourceLineNo">652</span> }<a name="line.652"></a>
+<span class="sourceLineNo">653</span> } catch (IOException e) {<a name="line.653"></a>
+<span class="sourceLineNo">654</span> LOG.error("Error while reading regions from file:" + filename, e);<a name="line.654"></a>
+<span class="sourceLineNo">655</span> throw e;<a name="line.655"></a>
+<span class="sourceLineNo">656</span> } finally {<a name="line.656"></a>
+<span class="sourceLineNo">657</span> if (dis != null) {<a name="line.657"></a>
+<span class="sourceLineNo">658</span> dis.close();<a name="line.658"></a>
+<span class="sourceLineNo">659</span> }<a name="line.659"></a>
+<span class="sourceLineNo">660</span> if (fis != null) {<a name="line.660"></a>
+<span class="sourceLineNo">661</span> fis.close();<a name="line.661"></a>
+<span class="sourceLineNo">662</span> }<a name="line.662"></a>
+<span class="sourceLineNo">663</span> }<a name="line.663"></a>
+<span class="sourceLineNo">664</span> return regions;<a name="line.664"></a>
+<span class="sourceLineNo">665</span> }<a name="line.665"></a>
+<span class="sourceLineNo">666</span><a name="line.666"></a>
+<span class="sourceLineNo">667</span> /**<a name="line.667"></a>
+<span class="sourceLineNo">668</span> * Get online regions of the passed server<a name="line.668"></a>
+<span class="sourceLineNo">669</span> * @param conf<a name="line.669"></a>
+<span class="sourceLineNo">670</span> * @param server<a name="line.670"></a>
+<span class="sourceLineNo">671</span> * @return List of Regions online on the server<a name="line.671"></a>
+<span class="sourceLineNo">672</span> * @throws IOException<a name="line.672"></a>
+<span class="sourceLineNo">673</span> */<a name="line.673"></a>
+<span class="sourceLineNo">674</span> private List<HRegionInfo> getRegions(Configuration conf, String server) throws IOException {<a name="line.674"></a>
+<span class="sourceLineNo">675</span> Connection conn = ConnectionFactory.createConnection(conf);<a name="line.675"></a>
+<span class="sourceLineNo">676</span> try {<a name="line.676"></a>
+<span class="sourceLineNo">677</span> return conn.getAdmin().getOnlineRegions(ServerName.valueOf(server));<a name="line.677"></a>
+<span class="sourceLineNo">678</span> } finally {<a name="line.678"></a>
+<span class="sourceLineNo">679</span> conn.close();<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><a name="line.682"></a>
+<span class="sourceLineNo">683</span> /**<a name="line.683"></a>
+<span class="sourceLineNo">684</span> * Write the number of regions moved in the first line followed by regions moved in subsequent<a name="line.684"></a>
+<span class="sourceLineNo">685</span> * lines<a name="line.685"></a>
+<span class="sourceLineNo">686</span> * @param filename<a name="line.686"></a>
+<span class="sourceLineNo">687</span> * @param movedRegions<a name="line.687"></a>
+<span class="sourceLineNo">688</span> * @throws IOException<a name="line.688"></a>
+<span class="sourceLineNo">689</span> */<a name="line.689"></a>
+<span class="sourceLineNo">690</span> private void writeFile(String filename, List<HRegionInfo> movedRegions) throws IOException {<a name="line.690"></a>
+<span class="sourceLineNo">691</span> FileOutputStream fos = null;<a name="line.691"></a>
+<span class="sourceLineNo">692</span> DataOutputStream dos = null;<a name="line.692"></a>
+<span class="sourceLineNo">693</span> try {<a name="line.693"></a>
+<span class="sourceLineNo">694</span> fos = new FileOutputStream(filename);<a name="line.694"></a>
+<span class="sourceLineNo">695</span> dos = new DataOutputStream(fos);<a name="line.695"></a>
+<span class="sourceLineNo">696</span> dos.writeInt(movedRegions.size());<a name="line.696"></a>
+<span class="sourceLineNo">697</span> for (HRegionInfo region : movedRegions) {<a name="line.697"></a>
+<span class="sourceLineNo">698</span> Bytes.writeByteArray(dos, region.toByteArray());<a name="line.698"></a>
+<span class="sourceLineNo">699</span> }<a name="line.699"></a>
+<span class="sourceLineNo">700</span> } catch (IOException e) {<a name="line.700"></a>
+<span class="sourceLineNo">701</span> LOG.error("ERROR: Was Not able to write regions moved to output file but moved "<a name="line.701"></a>
+<span class="sourceLineNo">702</span> + movedRegions.size() + " regions", e);<a name="line.702"></a>
+<span class="sourceLineNo">703</span> throw e;<a name="line.703"></a>
+<span class="sourceLineNo">704</span> } finally {<a name="line.704"></a>
+<span class="sourceLineNo">705</span> if (dos != null) {<a name="line.705"></a>
+<span class="sourceLineNo">706</span> dos.close();<a name="line.706"></a>
+<span class="sourceLineNo">707</span> }<a name="line.707"></a>
+<span class="sourceLineNo">708</span> if (fos != null) {<a name="line.708"></a>
+<span class="sourceLineNo">709</span> fos.close();<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> }<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> * Excludes the servername whose hostname and port portion matches the list given in exclude file<a name="line.715"></a>
+<span class="sourceLineNo">716</span> * @param regionServers<a name="line.716"></a>
+<span class="sourceLineNo">717</span> * @param excludeFile<a name="line.717"></a>
+<span class="sourceLineNo">718</span> * @throws IOException<a name="line.718"></a>
+<span class="sourceLineNo">719</span> */<a name="line.719"></a>
+<span class="sourceLineNo">720</span> private void stripExcludes(ArrayList<String> regionServers, String excludeFile)<a name="line.720"></a>
+<span class="sourceLineNo">721</span> throws IOException {<a name="line.721"></a>
+<span class="sourceLineNo">722</span> if (excludeFile != null) {<a name="line.722"></a>
+<span class="sourceLineNo">723</span> ArrayList<String> excludes = readExcludes(excludeFile);<a name="line.723"></a>
+<span class="sourceLineNo">724</span> Iterator<String> i = regionServers.iterator();<a name="line.724"></a>
+<span class="sourceLineNo">725</span> while (i.hasNext()) {<a name="line.725"></a>
+<span class="sourceLineNo">726</span> String rs = i.next();<a name="line.726"></a>
+<span class="sourceLineNo">727</span> String rsPort =<a name="line.727"></a>
+<span class="sourceLineNo">728</span> rs.split(ServerName.SERVERNAME_SEPARATOR)[0] + ":"<a name="line.728"></a>
+<span class="sourceLineNo">729</span> + rs.split(ServerName.SERVERNAME_SEPARATOR)[1];<a name="line.729"></a>
+<span class="sourceLineNo">730</span> if (excludes.contains(rsPort)) {<a name="line.730"></a>
+<span class="sourceLineNo">731</span> i.remove();<a name="line.731"></a>
+<span class="sourceLineNo">732</span> }<a name="line.732"></a>
+<span class="sourceLineNo">733</span> }<a name="line.733"></a>
+<span class="sourceLineNo">734</span> LOG.info("Valid Region server targets are:" + regionServers.toString());<a name="line.734"></a>
+<span class="sourceLineNo">735</span> LOG.info("Excluded Servers are" + excludes.toString());<a name="line.735"></a>
+<span class="sourceLineNo">736</span> }<a name="line.736"></a>
+<span class="sourceLineNo">737</span> }<a name="line.737"></a>
+<span class="sourceLineNo">738</span><a name="line.738"></a>
+<span class="sourceLineNo">739</span> /**<a name="line.739"></a>
+<span class="sourceLineNo">740</span> * Exclude master from list of RSs to move regions to<a name="line.740"></a>
+<span class="sourceLineNo">741</span> * @param regionServers<a name="line.741"></a>
+<span class="sourceLineNo">742</span> * @param admin<a name="line.742"></a>
+<span class="sourceLineNo">743</span> * @throws IOException<a name="line.743"></a>
+<span class="sourceLineNo">744</span> */<a name="line.744"></a>
+<span class="sourceLineNo">745</span> private void stripMaster(ArrayList<String> regionServers, Admin admin) throws IOException {<a name="line.745"></a>
+<span class="sourceLineNo">746</span> String masterHostname = admin.getClusterStatus().getMaster().getHostname();<a name="line.746"></a>
+<span class="sourceLineNo">747</span> int masterPort = admin.getClusterStatus().getMaster().getPort();<a name="line.747"></a>
+<span class="sourceLineNo">748</span> try {<a name="line.748"></a>
+<span class="sourceLineNo">749</span> stripServer(regionServers, masterHostname, masterPort);<a name="line.749"></a>
+<span class="sourceLineNo">750</span> } catch (Exception e) {<a name="line.750"></a>
+<span class="sourceLineNo">751</span> LOG.warn("Could not remove master from list of RS", e);<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><a name="line.754"></a>
+<span class="sourceLineNo">755</span> /**<a name="line.755"></a>
+<span class="sourceLineNo">756</span> * @return List of servers from the exclude file in format 'hostname:port'.<a name="line.756"></a>
+<span class="sourceLineNo">757</span> */<a name="line.757"></a>
+<span class="sourceLineNo">758</span> private ArrayList<String> readExcludes(String excludeFile) throws IOException {<a name="line.758"></a>
+<span class="sourceLineNo">759</span> ArrayList<String> excludeServers = new ArrayList<String>();<a name="line.759"></a>
+<span class="sourceLineNo">760</span> if (excludeFile == null) {<a name="line.760"></a>
+<span class="sourceLineNo">761</span> return excludeServers;<a name="line.761"></a>
+<span class="sourceLineNo">762</span> } else {<a name="line.762"></a>
+<span class="sourceLineNo">763</span> File f = new File(excludeFile);<a name="line.763"></a>
+<span class="sourceLineNo">764</span> String line;<a name="line.764"></a>
+<span class="sourceLineNo">765</span> BufferedReader br = null;<a name="line.765"></a>
+<span class="sourceLineNo">766</span> try {<a name="line.766"></a>
+<span class="sourceLineNo">767</span> br = new BufferedReader(new FileReader(f));<a name="line.767"></a>
+<span class="sourceLineNo">768</span> while ((line = br.readLine()) != null) {<a name="line.768"></a>
+<span class="sourceLineNo">769</span> line = line.trim();<a name="line.769"></a>
+<span class="sourceLineNo">770</span> if (!line.equals("")) {<a name="line.770"></a>
+<span class="sourceLineNo">771</span> excludeServers.add(line);<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> } catch (IOException e) {<a name="line.774"></a>
+<span class="sourceLineNo">775</span> LOG.warn("Exception while reading excludes file,continuing anyways", e);<a name="line.775"></a>
+<span class="sourceLineNo">776</span> } finally {<a name="line.776"></a>
+<span class="sourceLineNo">777</span> if (br != null) {<a name="line.777"></a>
+<span class="sourceLineNo">778</span> br.close();<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> return excludeServers;<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> /**<a name="line.785"></a>
+<span class="sourceLineNo">786</span> * Remove the servername whose hostname and port portion matches from the passed array of servers.<a name="line.786"></a>
+<span class="sourceLineNo">787</span> * Returns as side-effect the servername removed.<a name="line.787"></a>
+<span class="sourceLineNo">788</span> * @param regionServers<a name="line.788"></a>
+<span class="sourceLineNo">789</span> * @param hostname<a name="line.789"></a>
+<span class="sourceLineNo">790</span> * @param port<a name="line.790"></a>
+<span class="sourceLineNo">791</span> * @return server removed from list of Region Servers<a name="line.791"></a>
+<span class="sourceLineNo">792</span> * @throws Exception<a name="line.792"></a>
+<span class="sourceLineNo">793</span> */<a name="line.793"></a>
+<span class="sourceLineNo">794</span> private String stripServer(ArrayList<String> regionServers, String hostname, int port)<a name="line.794"></a>
+<span class="sourceLineNo">795</span> throws Exception {<a name="line.795"></a>
+<span class="sourceLineNo">796</span> String server = null;<a name="line.796"></a>
+<span class="sourceLineNo">797</span> String portString = Integer.toString(port);<a name="line.797"></a>
+<span class="sourceLineNo">798</span> Iterator<String> i = regionServers.iterator();<a name="line.798"></a>
+<span class="sourceLineNo">799</span> int noOfRs = regionServers.size();<a name="line.799"></a>
+<span class="sourceLineNo">800</span> while (i.hasNext()) {<a name="line.800"></a>
+<span class="sourceLineNo">801</span> server = i.next();<a name="line.801"></a>
+<span class="sourceLineNo">802</span> String[] splitServer = server.split(ServerName.SERVERNAME_SEPARATOR);<a name="line.802"></a>
+<span class="sourceLineNo">803</span> if (splitServer[0].equals(hostname) && splitServer[1].equals(portString)) {<a name="line.803"></a>
+<span class="sourceLineNo">804</span> i.remove();<a name="line.804"></a>
+<span class="sourceLineNo">805</span> return server;<a name="line.805"></a>
+<span class="sourceLineNo">806</span> }<a name="line.806"></a>
+<span class="sourceLineNo">807</span> }<a name="line.807"></a>
+<span class="sourceLineNo">808</span> if (regionServers.size() >= noOfRs) {<a name="line.808"></a>
+<span class="sourceLineNo">809</span> throw new Exception("Server " + hostname + ":" + Integer.toString(port)<a name="line.809"></a>
+<span class="sourceLineNo">810</span> + " is not in list of online servers(Offline/Incorrect)");<a name="line.810"></a>
+<span class="sourceLineNo">811</span> }<a name="line.811"></a>
+<span class="sourceLineNo">812</span> return server;<a name="line.812"></a>
+<span class="sourceLineNo">813</span> }<a name="line.813"></a>
+<span class="sourceLineNo">814</span><a name="line.814"></a>
+<span class="sourceLineNo">815</span> /**<a name="line.815"></a>
+<span class="sourceLineNo">816</span> * Get Arraylist of Servers in the cluster<a name="line.816"></a>
+<span class="sourceLineNo">817</span> * @param admin<a name="line.817"></a>
+<span class="sourceLineNo">818</span> * @return ArrayList of online region servers<a name="line.818"></a>
+<span class="sourceLineNo">819</span> * @throws IOException<a name="line.819"></a>
+<span class="sourceLineNo">820</span> */<a name="line.820"></a>
+<span class="sourceLineNo">821</span> private ArrayList<String> getServers(Admin admin) throws IOException {<a name="line.821"></a>
+<span class="sourceLineNo">822</span> ArrayList<ServerName> serverInfo =<a name="line.822"></a>
+<span class="sourceLineNo">823</span> new ArrayList<ServerName>(admin.getClusterStatus().getServers());<a name="line.823"></a>
+<span class="sourceLineNo">824</span> ArrayList<String> regionServers = new ArrayList<String>();<a name="line.824"></a>
+<span class="sourceLineNo">825</span> for (ServerName server : serverInfo) {<a name="line.825"></a>
+<span class="sourceLineNo">826</span> regionServers.add(server.getServerName());<a name="line.826"></a>
+<span class="sourceLineNo">827</span> }<a name="line.827"></a>
+<span class="sourceLineNo">828</span> return regionServers;<a name="line.828"></a>
+<span class="sourceLineNo">829</span> }<a name="line.829"></a>
+<span class="sourceLineNo">830</span><a name="line.830"></a>
+<span class="sourceLineNo">831</span> private void deleteFile(String filename) {<a name="line.831"></a>
+<span class="sourceL
<TRUNCATED>