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Posted to commits@hbase.apache.org by st...@apache.org on 2017/05/27 20:17:59 UTC
[07/29] hbase git commit: HBASE-14614 Procedure v2 - Core Assignment
Manager (Matteo Bertozzi) Move to a new AssignmentManager,
one that describes Assignment using a State Machine built on top of
ProcedureV2 facility.
http://git-wip-us.apache.org/repos/asf/hbase/blob/657a5d46/hbase-server/src/test/java/org/apache/hadoop/hbase/master/assignment/MockMasterServices.java
----------------------------------------------------------------------
diff --git a/hbase-server/src/test/java/org/apache/hadoop/hbase/master/assignment/MockMasterServices.java b/hbase-server/src/test/java/org/apache/hadoop/hbase/master/assignment/MockMasterServices.java
new file mode 100644
index 0000000..d558aaf
--- /dev/null
+++ b/hbase-server/src/test/java/org/apache/hadoop/hbase/master/assignment/MockMasterServices.java
@@ -0,0 +1,358 @@
+/**
+ * Licensed to the Apache Software Foundation (ASF) under one
+ * or more contributor license agreements. See the NOTICE file
+ * distributed with this work for additional information
+ * regarding copyright ownership. The ASF licenses this file
+ * to you under the Apache License, Version 2.0 (the
+ * "License"); you may not use this file except in compliance
+ * with the License. You may obtain a copy of the License at
+ *
+ * http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+package org.apache.hadoop.hbase.master.assignment;
+
+import java.io.IOException;
+import java.util.HashSet;
+import java.util.Map;
+import java.util.NavigableMap;
+import java.util.SortedSet;
+
+import org.apache.hadoop.conf.Configuration;
+import org.apache.hadoop.fs.FileSystem;
+import org.apache.hadoop.fs.Path;
+import org.apache.hadoop.hbase.CoordinatedStateManager;
+import org.apache.hadoop.hbase.HColumnDescriptor;
+import org.apache.hadoop.hbase.HRegionInfo;
+import org.apache.hadoop.hbase.HTableDescriptor;
+import org.apache.hadoop.hbase.ServerLoad;
+import org.apache.hadoop.hbase.ServerName;
+import org.apache.hadoop.hbase.TableDescriptors;
+import org.apache.hadoop.hbase.TableName;
+import org.apache.hadoop.hbase.client.ClusterConnection;
+import org.apache.hadoop.hbase.client.HConnectionTestingUtility;
+import org.apache.hadoop.hbase.master.LoadBalancer;
+import org.apache.hadoop.hbase.master.MasterFileSystem;
+import org.apache.hadoop.hbase.master.MasterServices;
+import org.apache.hadoop.hbase.master.MasterWalManager;
+import org.apache.hadoop.hbase.master.MockNoopMasterServices;
+import org.apache.hadoop.hbase.master.RegionState.State;
+import org.apache.hadoop.hbase.master.ServerManager;
+import org.apache.hadoop.hbase.master.balancer.LoadBalancerFactory;
+import org.apache.hadoop.hbase.master.procedure.MasterProcedureConstants;
+import org.apache.hadoop.hbase.master.procedure.MasterProcedureEnv;
+import org.apache.hadoop.hbase.master.procedure.RSProcedureDispatcher;
+import org.apache.hadoop.hbase.procedure2.Procedure;
+import org.apache.hadoop.hbase.procedure2.ProcedureEvent;
+import org.apache.hadoop.hbase.procedure2.ProcedureExecutor;
+import org.apache.hadoop.hbase.procedure2.store.NoopProcedureStore;
+import org.apache.hadoop.hbase.procedure2.store.ProcedureStore;
+import org.apache.hadoop.hbase.security.Superusers;
+import org.apache.hadoop.hbase.shaded.com.google.protobuf.RpcController;
+import org.apache.hadoop.hbase.shaded.com.google.protobuf.ServiceException;
+import org.apache.hadoop.hbase.shaded.protobuf.ProtobufUtil;
+import org.apache.hadoop.hbase.shaded.protobuf.generated.AdminProtos;
+import org.apache.hadoop.hbase.shaded.protobuf.generated.ClientProtos;
+import org.apache.hadoop.hbase.shaded.protobuf.generated.ClientProtos.MultiRequest;
+import org.apache.hadoop.hbase.shaded.protobuf.generated.ClientProtos.MultiResponse;
+import org.apache.hadoop.hbase.shaded.protobuf.generated.ClientProtos.MutateRequest;
+import org.apache.hadoop.hbase.shaded.protobuf.generated.ClientProtos.MutateResponse;
+import org.apache.hadoop.hbase.shaded.protobuf.generated.ClientProtos.RegionAction;
+import org.apache.hadoop.hbase.shaded.protobuf.generated.ClientProtos.RegionActionResult;
+import org.apache.hadoop.hbase.shaded.protobuf.generated.ClientProtos.ResultOrException;
+import org.apache.hadoop.hbase.util.FSUtils;
+import org.mockito.Mockito;
+import org.mockito.invocation.InvocationOnMock;
+import org.mockito.stubbing.Answer;
+
+/**
+ * A mocked master services.
+ * Tries to fake it. May not always work.
+ */
+public class MockMasterServices extends MockNoopMasterServices {
+ private final MasterFileSystem fileSystemManager;
+ private final MasterWalManager walManager;
+ private final AssignmentManager assignmentManager;
+
+ private MasterProcedureEnv procedureEnv;
+ private ProcedureExecutor<MasterProcedureEnv> procedureExecutor;
+ private ProcedureStore procedureStore;
+ private final ClusterConnection connection;
+ private final LoadBalancer balancer;
+ private final ServerManager serverManager;
+ // Set of regions on a 'server'. Populated externally. Used in below faking 'cluster'.
+ private final NavigableMap<ServerName, SortedSet<byte []>> regionsToRegionServers;
+
+ private final ProcedureEvent initialized = new ProcedureEvent("master initialized");
+ public static final String DEFAULT_COLUMN_FAMILY_NAME = "cf";
+ public static final ServerName MOCK_MASTER_SERVERNAME =
+ ServerName.valueOf("mockmaster.example.org", 1234, -1L);
+
+ public MockMasterServices(Configuration conf,
+ NavigableMap<ServerName, SortedSet<byte []>> regionsToRegionServers)
+ throws IOException {
+ super(conf);
+ this.regionsToRegionServers = regionsToRegionServers;
+ Superusers.initialize(conf);
+ this.fileSystemManager = new MasterFileSystem(this);
+ this.walManager = new MasterWalManager(this);
+ // Mock an AM.
+ this.assignmentManager = new AssignmentManager(this, new MockRegionStateStore(this)) {
+ public boolean isTableEnabled(final TableName tableName) {
+ return true;
+ }
+
+ public boolean isTableDisabled(final TableName tableName) {
+ return false;
+ }
+
+ @Override
+ protected boolean waitServerReportEvent(ServerName serverName, Procedure proc) {
+ // Make a report with current state of the server 'serverName' before we call wait..
+ SortedSet<byte []> regions = regionsToRegionServers.get(serverName);
+ getAssignmentManager().reportOnlineRegions(serverName, 0,
+ regions == null? new HashSet<byte []>(): regions);
+ return super.waitServerReportEvent(serverName, proc);
+ }
+ };
+ this.balancer = LoadBalancerFactory.getLoadBalancer(conf);
+ this.serverManager = new ServerManager(this);
+
+ // Mock up a Client Interface
+ ClientProtos.ClientService.BlockingInterface ri =
+ Mockito.mock(ClientProtos.ClientService.BlockingInterface.class);
+ MutateResponse.Builder builder = MutateResponse.newBuilder();
+ builder.setProcessed(true);
+ try {
+ Mockito.when(ri.mutate((RpcController)Mockito.any(), (MutateRequest)Mockito.any())).
+ thenReturn(builder.build());
+ } catch (ServiceException se) {
+ throw ProtobufUtil.handleRemoteException(se);
+ }
+ try {
+ Mockito.when(ri.multi((RpcController)Mockito.any(), (MultiRequest)Mockito.any())).
+ thenAnswer(new Answer<MultiResponse>() {
+ @Override
+ public MultiResponse answer(InvocationOnMock invocation) throws Throwable {
+ return buildMultiResponse( (MultiRequest)invocation.getArguments()[1]);
+ }
+ });
+ } catch (ServiceException se) {
+ throw ProtobufUtil.getRemoteException(se);
+ }
+ // Mock n ClusterConnection and an AdminProtocol implementation. Have the
+ // ClusterConnection return the HRI. Have the HRI return a few mocked up responses
+ // to make our test work.
+ this.connection =
+ HConnectionTestingUtility.getMockedConnectionAndDecorate(getConfiguration(),
+ Mockito.mock(AdminProtos.AdminService.BlockingInterface.class), ri, MOCK_MASTER_SERVERNAME,
+ HRegionInfo.FIRST_META_REGIONINFO);
+ // Set hbase.rootdir into test dir.
+ Path rootdir = FSUtils.getRootDir(getConfiguration());
+ FSUtils.setRootDir(getConfiguration(), rootdir);
+ Mockito.mock(AdminProtos.AdminService.BlockingInterface.class);
+ }
+
+ public void start(final int numServes, final RSProcedureDispatcher remoteDispatcher)
+ throws IOException {
+ startProcedureExecutor(remoteDispatcher);
+ this.assignmentManager.start();
+ for (int i = 0; i < numServes; ++i) {
+ serverManager.regionServerReport(
+ ServerName.valueOf("localhost", 100 + i, 1), ServerLoad.EMPTY_SERVERLOAD);
+ }
+ this.procedureExecutor.getEnvironment().setEventReady(initialized, true);
+ }
+
+ @Override
+ public void stop(String why) {
+ stopProcedureExecutor();
+ this.assignmentManager.stop();
+ }
+
+ private void startProcedureExecutor(final RSProcedureDispatcher remoteDispatcher)
+ throws IOException {
+ final Configuration conf = getConfiguration();
+ final Path logDir = new Path(fileSystemManager.getRootDir(),
+ MasterProcedureConstants.MASTER_PROCEDURE_LOGDIR);
+
+ //procedureStore = new WALProcedureStore(conf, fileSystemManager.getFileSystem(), logDir,
+ // new MasterProcedureEnv.WALStoreLeaseRecovery(this));
+ this.procedureStore = new NoopProcedureStore();
+ this.procedureStore.registerListener(new MasterProcedureEnv.MasterProcedureStoreListener(this));
+
+ this.procedureEnv = new MasterProcedureEnv(this,
+ remoteDispatcher != null ? remoteDispatcher : new RSProcedureDispatcher(this));
+
+ this.procedureExecutor = new ProcedureExecutor(conf, procedureEnv, procedureStore,
+ procedureEnv.getProcedureScheduler());
+
+ final int numThreads = conf.getInt(MasterProcedureConstants.MASTER_PROCEDURE_THREADS,
+ Math.max(Runtime.getRuntime().availableProcessors(),
+ MasterProcedureConstants.DEFAULT_MIN_MASTER_PROCEDURE_THREADS));
+ final boolean abortOnCorruption = conf.getBoolean(
+ MasterProcedureConstants.EXECUTOR_ABORT_ON_CORRUPTION,
+ MasterProcedureConstants.DEFAULT_EXECUTOR_ABORT_ON_CORRUPTION);
+ this.procedureStore.start(numThreads);
+ this.procedureExecutor.start(numThreads, abortOnCorruption);
+ this.procedureEnv.getRemoteDispatcher().start();
+ }
+
+ private void stopProcedureExecutor() {
+ if (this.procedureEnv != null) {
+ this.procedureEnv.getRemoteDispatcher().stop();
+ }
+
+ if (this.procedureExecutor != null) {
+ this.procedureExecutor.stop();
+ }
+
+ if (this.procedureStore != null) {
+ this.procedureStore.stop(isAborted());
+ }
+ }
+
+ @Override
+ public boolean isInitialized() {
+ return true;
+ }
+
+ @Override
+ public ProcedureEvent getInitializedEvent() {
+ return this.initialized;
+ }
+
+ @Override
+ public MasterFileSystem getMasterFileSystem() {
+ return fileSystemManager;
+ }
+
+ @Override
+ public MasterWalManager getMasterWalManager() {
+ return walManager;
+ }
+
+ @Override
+ public ProcedureExecutor<MasterProcedureEnv> getMasterProcedureExecutor() {
+ return procedureExecutor;
+ }
+
+ @Override
+ public LoadBalancer getLoadBalancer() {
+ return balancer;
+ }
+
+ @Override
+ public ServerManager getServerManager() {
+ return serverManager;
+ }
+
+ @Override
+ public AssignmentManager getAssignmentManager() {
+ return assignmentManager;
+ }
+
+ @Override
+ public ClusterConnection getConnection() {
+ return this.connection;
+ }
+
+ @Override
+ public ServerName getServerName() {
+ return MOCK_MASTER_SERVERNAME;
+ }
+
+ @Override
+ public CoordinatedStateManager getCoordinatedStateManager() {
+ return super.getCoordinatedStateManager();
+ }
+
+ private static class MockRegionStateStore extends RegionStateStore {
+ public MockRegionStateStore(final MasterServices master) {
+ super(master);
+ }
+
+ @Override
+ public void start() throws IOException {
+ }
+
+ @Override
+ public void stop() {
+ }
+
+ @Override
+ public void updateRegionLocation(HRegionInfo regionInfo, State state, ServerName regionLocation,
+ ServerName lastHost, long openSeqNum, long pid) throws IOException {
+ }
+ }
+
+ @Override
+ public TableDescriptors getTableDescriptors() {
+ return new TableDescriptors() {
+ @Override
+ public HTableDescriptor remove(TableName tablename) throws IOException {
+ // noop
+ return null;
+ }
+
+ @Override
+ public Map<String, HTableDescriptor> getAll() throws IOException {
+ // noop
+ return null;
+ }
+
+ @Override public Map<String, HTableDescriptor> getAllDescriptors() throws IOException {
+ // noop
+ return null;
+ }
+
+ @Override
+ public HTableDescriptor get(TableName tablename) throws IOException {
+ HTableDescriptor htd = new HTableDescriptor(tablename);
+ htd.addFamily(new HColumnDescriptor(DEFAULT_COLUMN_FAMILY_NAME));
+ return htd;
+ }
+
+ @Override
+ public Map<String, HTableDescriptor> getByNamespace(String name) throws IOException {
+ return null;
+ }
+
+ @Override
+ public void add(HTableDescriptor htd) throws IOException {
+ // noop
+ }
+
+ @Override
+ public void setCacheOn() throws IOException {
+ }
+
+ @Override
+ public void setCacheOff() throws IOException {
+ }
+ };
+ }
+
+ private static MultiResponse buildMultiResponse(MultiRequest req) {
+ MultiResponse.Builder builder = MultiResponse.newBuilder();
+ RegionActionResult.Builder regionActionResultBuilder =
+ RegionActionResult.newBuilder();
+ ResultOrException.Builder roeBuilder = ResultOrException.newBuilder();
+ for (RegionAction regionAction: req.getRegionActionList()) {
+ regionActionResultBuilder.clear();
+ for (ClientProtos.Action action: regionAction.getActionList()) {
+ roeBuilder.clear();
+ roeBuilder.setResult(ClientProtos.Result.getDefaultInstance());
+ roeBuilder.setIndex(action.getIndex());
+ regionActionResultBuilder.addResultOrException(roeBuilder.build());
+ }
+ builder.addRegionActionResult(regionActionResultBuilder.build());
+ }
+ return builder.build();
+ }
+}
\ No newline at end of file
http://git-wip-us.apache.org/repos/asf/hbase/blob/657a5d46/hbase-server/src/test/java/org/apache/hadoop/hbase/master/assignment/TestAssignmentManager.java
----------------------------------------------------------------------
diff --git a/hbase-server/src/test/java/org/apache/hadoop/hbase/master/assignment/TestAssignmentManager.java b/hbase-server/src/test/java/org/apache/hadoop/hbase/master/assignment/TestAssignmentManager.java
new file mode 100644
index 0000000..dda41e0
--- /dev/null
+++ b/hbase-server/src/test/java/org/apache/hadoop/hbase/master/assignment/TestAssignmentManager.java
@@ -0,0 +1,750 @@
+/**
+ * Licensed to the Apache Software Foundation (ASF) under one
+ * or more contributor license agreements. See the NOTICE file
+ * distributed with this work for additional information
+ * regarding copyright ownership. The ASF licenses this file
+ * to you under the Apache License, Version 2.0 (the
+ * "License"); you may not use this file except in compliance
+ * with the License. You may obtain a copy of the License at
+ *
+ * http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+package org.apache.hadoop.hbase.master.assignment;
+
+import static org.junit.Assert.assertEquals;
+import static org.junit.Assert.assertNotEquals;
+import static org.junit.Assert.assertTrue;
+import static org.junit.Assert.fail;
+
+import java.io.IOException;
+import java.net.SocketTimeoutException;
+import java.util.NavigableMap;
+import java.util.Random;
+import java.util.Set;
+import java.util.SortedSet;
+import java.util.concurrent.ConcurrentSkipListMap;
+import java.util.concurrent.ConcurrentSkipListSet;
+import java.util.concurrent.ExecutionException;
+import java.util.concurrent.Executors;
+import java.util.concurrent.Future;
+import java.util.concurrent.ScheduledExecutorService;
+import java.util.concurrent.TimeUnit;
+
+import org.apache.commons.logging.Log;
+import org.apache.commons.logging.LogFactory;
+import org.apache.hadoop.conf.Configuration;
+import org.apache.hadoop.hbase.CategoryBasedTimeout;
+import org.apache.hadoop.hbase.DoNotRetryIOException;
+import org.apache.hadoop.hbase.HBaseTestingUtility;
+import org.apache.hadoop.hbase.HRegionInfo;
+import org.apache.hadoop.hbase.NotServingRegionException;
+import org.apache.hadoop.hbase.ServerName;
+import org.apache.hadoop.hbase.TableName;
+import org.apache.hadoop.hbase.client.RetriesExhaustedException;
+import org.apache.hadoop.hbase.exceptions.UnexpectedStateException;
+import org.apache.hadoop.hbase.ipc.ServerNotRunningYetException;
+import org.apache.hadoop.hbase.master.MasterServices;
+import org.apache.hadoop.hbase.master.RegionState.State;
+import org.apache.hadoop.hbase.master.procedure.MasterProcedureConstants;
+import org.apache.hadoop.hbase.master.procedure.MasterProcedureScheduler;
+import org.apache.hadoop.hbase.master.procedure.ProcedureSyncWait;
+import org.apache.hadoop.hbase.master.procedure.RSProcedureDispatcher;
+import org.apache.hadoop.hbase.procedure2.Procedure;
+import org.apache.hadoop.hbase.procedure2.ProcedureTestingUtility;
+import org.apache.hadoop.hbase.procedure2.store.wal.WALProcedureStore;
+import org.apache.hadoop.hbase.procedure2.util.StringUtils;
+import org.apache.hadoop.hbase.regionserver.RegionServerAbortedException;
+import org.apache.hadoop.hbase.regionserver.RegionServerStoppedException;
+import org.apache.hadoop.hbase.shaded.protobuf.ProtobufUtil;
+import org.apache.hadoop.hbase.shaded.protobuf.generated.AdminProtos.CloseRegionRequest;
+import org.apache.hadoop.hbase.shaded.protobuf.generated.AdminProtos.CloseRegionResponse;
+import org.apache.hadoop.hbase.shaded.protobuf.generated.AdminProtos.ExecuteProceduresRequest;
+import org.apache.hadoop.hbase.shaded.protobuf.generated.AdminProtos.ExecuteProceduresResponse;
+import org.apache.hadoop.hbase.shaded.protobuf.generated.AdminProtos.OpenRegionRequest;
+import org.apache.hadoop.hbase.shaded.protobuf.generated.AdminProtos.OpenRegionRequest.RegionOpenInfo;
+import org.apache.hadoop.hbase.shaded.protobuf.generated.AdminProtos.OpenRegionResponse;
+import org.apache.hadoop.hbase.shaded.protobuf.generated.AdminProtos.OpenRegionResponse.RegionOpeningState;
+import org.apache.hadoop.hbase.shaded.protobuf.generated.HBaseProtos.RegionInfo;
+import org.apache.hadoop.hbase.shaded.protobuf.generated.RegionServerStatusProtos.RegionStateTransition;
+import org.apache.hadoop.hbase.shaded.protobuf.generated.RegionServerStatusProtos.RegionStateTransition.TransitionCode;
+import org.apache.hadoop.hbase.shaded.protobuf.generated.RegionServerStatusProtos.ReportRegionStateTransitionRequest;
+import org.apache.hadoop.hbase.testclassification.MasterTests;
+import org.apache.hadoop.hbase.testclassification.MediumTests;
+import org.apache.hadoop.hbase.util.Bytes;
+import org.apache.hadoop.hbase.util.FSUtils;
+import org.apache.hadoop.ipc.RemoteException;
+import org.apache.log4j.Level;
+import org.apache.log4j.Logger;
+import org.junit.After;
+import org.junit.Before;
+import org.junit.Ignore;
+import org.junit.Rule;
+import org.junit.Test;
+import org.junit.experimental.categories.Category;
+import org.junit.rules.TestName;
+import org.junit.rules.TestRule;
+
+@Category({MasterTests.class, MediumTests.class})
+public class TestAssignmentManager {
+ private static final Log LOG = LogFactory.getLog(TestAssignmentManager.class);
+ static {
+ Logger.getLogger(MasterProcedureScheduler.class).setLevel(Level.TRACE);
+ }
+ @Rule public TestName name = new TestName();
+ @Rule public final TestRule timeout =
+ CategoryBasedTimeout.builder().withTimeout(this.getClass()).
+ withLookingForStuckThread(true).build();
+
+ private static final int PROC_NTHREADS = 64;
+ private static final int NREGIONS = 1 * 1000;
+ private static final int NSERVERS = Math.max(1, NREGIONS / 100);
+
+ private HBaseTestingUtility UTIL;
+ private MockRSProcedureDispatcher rsDispatcher;
+ private MockMasterServices master;
+ private AssignmentManager am;
+ private NavigableMap<ServerName, SortedSet<byte []>> regionsToRegionServers =
+ new ConcurrentSkipListMap<ServerName, SortedSet<byte []>>();
+ // Simple executor to run some simple tasks.
+ private ScheduledExecutorService executor;
+
+ private void setupConfiguration(Configuration conf) throws Exception {
+ FSUtils.setRootDir(conf, UTIL.getDataTestDir());
+ conf.setBoolean(WALProcedureStore.USE_HSYNC_CONF_KEY, false);
+ conf.setInt(WALProcedureStore.SYNC_WAIT_MSEC_CONF_KEY, 10);
+ conf.setInt(MasterProcedureConstants.MASTER_PROCEDURE_THREADS, PROC_NTHREADS);
+ conf.setInt(RSProcedureDispatcher.RS_RPC_STARTUP_WAIT_TIME_CONF_KEY, 1000);
+ conf.setInt(AssignmentManager.ASSIGN_MAX_ATTEMPTS, 100); // Have many so we succeed eventually.
+ }
+
+ @Before
+ public void setUp() throws Exception {
+ UTIL = new HBaseTestingUtility();
+ this.executor = Executors.newSingleThreadScheduledExecutor();
+ setupConfiguration(UTIL.getConfiguration());
+ master = new MockMasterServices(UTIL.getConfiguration(), this.regionsToRegionServers);
+ rsDispatcher = new MockRSProcedureDispatcher(master);
+ master.start(NSERVERS, rsDispatcher);
+ am = master.getAssignmentManager();
+ setUpMeta();
+ }
+
+ private void setUpMeta() throws Exception {
+ rsDispatcher.setMockRsExecutor(new GoodRsExecutor());
+ am.assign(HRegionInfo.FIRST_META_REGIONINFO);
+ am.wakeMetaLoadedEvent();
+ am.setFailoverCleanupDone(true);
+ }
+
+ @After
+ public void tearDown() throws Exception {
+ master.stop("tearDown");
+ this.executor.shutdownNow();
+ }
+
+ @Test (expected=NullPointerException.class)
+ public void testWaitServerReportEventWithNullServer() throws UnexpectedStateException {
+ // Test what happens if we pass in null server. I'd expect it throws NPE.
+ if (this.am.waitServerReportEvent(null, null)) throw new UnexpectedStateException();
+ }
+
+ @Ignore @Test // TODO
+ public void testGoodSplit() throws Exception {
+ TableName tableName = TableName.valueOf(this.name.getMethodName());
+ HRegionInfo hri = new HRegionInfo(tableName, Bytes.toBytes(0), Bytes.toBytes(2), false, 0);
+ SplitTableRegionProcedure split =
+ new SplitTableRegionProcedure(this.master.getMasterProcedureExecutor().getEnvironment(),
+ hri, Bytes.toBytes(1));
+ rsDispatcher.setMockRsExecutor(new GoodSplitExecutor());
+ long st = System.currentTimeMillis();
+ Thread t = new Thread() {
+ public void run() {
+ try {
+ waitOnFuture(submitProcedure(split));
+ } catch (Exception e) {
+ e.printStackTrace();
+ }
+ }
+ };
+ t.start();
+ t.join();
+ long et = System.currentTimeMillis();
+ float sec = ((et - st) / 1000.0f);
+ LOG.info(String.format("[T] Splitting in %s", StringUtils.humanTimeDiff(et - st)));
+ }
+
+ @Test
+ public void testAssignWithGoodExec() throws Exception {
+ testAssign(new GoodRsExecutor());
+ }
+
+ @Test
+ public void testAssignAndCrashBeforeResponse() throws Exception {
+ final TableName tableName = TableName.valueOf("testAssignAndCrashBeforeResponse");
+ final HRegionInfo hri = createRegionInfo(tableName, 1);
+ rsDispatcher.setMockRsExecutor(new HangThenRSCrashExecutor());
+ AssignProcedure proc = am.createAssignProcedure(hri, false);
+ waitOnFuture(submitProcedure(proc));
+ }
+
+ @Test
+ public void testUnassignAndCrashBeforeResponse() throws Exception {
+ final TableName tableName = TableName.valueOf("testAssignAndCrashBeforeResponse");
+ final HRegionInfo hri = createRegionInfo(tableName, 1);
+ rsDispatcher.setMockRsExecutor(new HangOnCloseThenRSCrashExecutor());
+ for (int i = 0; i < HangOnCloseThenRSCrashExecutor.TYPES_OF_FAILURE; i++) {
+ AssignProcedure assign = am.createAssignProcedure(hri, false);
+ waitOnFuture(submitProcedure(assign));
+ UnassignProcedure unassign = am.createUnassignProcedure(hri,
+ am.getRegionStates().getRegionServerOfRegion(hri), false);
+ waitOnFuture(submitProcedure(unassign));
+ }
+ }
+
+ @Test
+ public void testAssignWithRandExec() throws Exception {
+ final TableName tableName = TableName.valueOf("testAssignWithRandExec");
+ final HRegionInfo hri = createRegionInfo(tableName, 1);
+
+ rsDispatcher.setMockRsExecutor(new RandRsExecutor());
+ // Loop a bunch of times so we hit various combos of exceptions.
+ for (int i = 0; i < 10; i++) {
+ LOG.info("" + i);
+ AssignProcedure proc = am.createAssignProcedure(hri, false);
+ waitOnFuture(submitProcedure(proc));
+ }
+ }
+
+ @Test
+ public void testSocketTimeout() throws Exception {
+ final TableName tableName = TableName.valueOf(this.name.getMethodName());
+ final HRegionInfo hri = createRegionInfo(tableName, 1);
+
+ rsDispatcher.setMockRsExecutor(new SocketTimeoutRsExecutor(20, 3));
+ waitOnFuture(submitProcedure(am.createAssignProcedure(hri, false)));
+
+ rsDispatcher.setMockRsExecutor(new SocketTimeoutRsExecutor(20, 3));
+ waitOnFuture(submitProcedure(am.createUnassignProcedure(hri, null, false)));
+ }
+
+ @Test
+ public void testServerNotYetRunning() throws Exception {
+ testRetriesExhaustedFailure(TableName.valueOf(this.name.getMethodName()),
+ new ServerNotYetRunningRsExecutor());
+ }
+
+ private void testRetriesExhaustedFailure(final TableName tableName,
+ final MockRSExecutor executor) throws Exception {
+ final HRegionInfo hri = createRegionInfo(tableName, 1);
+
+ // Test Assign operation failure
+ rsDispatcher.setMockRsExecutor(executor);
+ try {
+ waitOnFuture(submitProcedure(am.createAssignProcedure(hri, false)));
+ fail("unexpected assign completion");
+ } catch (RetriesExhaustedException e) {
+ // expected exception
+ LOG.info("expected exception from assign operation: " + e.getMessage(), e);
+ }
+
+ // Assign the region (without problems)
+ rsDispatcher.setMockRsExecutor(new GoodRsExecutor());
+ waitOnFuture(submitProcedure(am.createAssignProcedure(hri, false)));
+
+ // TODO: Currently unassign just keeps trying until it sees a server crash.
+ // There is no count on unassign.
+ /*
+ // Test Unassign operation failure
+ rsDispatcher.setMockRsExecutor(executor);
+ waitOnFuture(submitProcedure(am.createUnassignProcedure(hri, null, false)));
+ */
+ }
+
+
+ @Test
+ public void testIOExceptionOnAssignment() throws Exception {
+ testFailedOpen(TableName.valueOf("testExceptionOnAssignment"),
+ new FaultyRsExecutor(new IOException("test fault")));
+ }
+
+ @Test
+ public void testDoNotRetryExceptionOnAssignment() throws Exception {
+ testFailedOpen(TableName.valueOf("testDoNotRetryExceptionOnAssignment"),
+ new FaultyRsExecutor(new DoNotRetryIOException("test do not retry fault")));
+ }
+
+ private void testFailedOpen(final TableName tableName,
+ final MockRSExecutor executor) throws Exception {
+ final HRegionInfo hri = createRegionInfo(tableName, 1);
+
+ // Test Assign operation failure
+ rsDispatcher.setMockRsExecutor(executor);
+ try {
+ waitOnFuture(submitProcedure(am.createAssignProcedure(hri, false)));
+ fail("unexpected assign completion");
+ } catch (RetriesExhaustedException e) {
+ // expected exception
+ LOG.info("REGION STATE " + am.getRegionStates().getRegionNode(hri));
+ LOG.info("expected exception from assign operation: " + e.getMessage(), e);
+ assertEquals(true, am.getRegionStates().getRegionState(hri).isFailedOpen());
+ }
+ }
+
+ private void testAssign(final MockRSExecutor executor) throws Exception {
+ testAssign(executor, NREGIONS);
+ }
+
+ private void testAssign(final MockRSExecutor executor, final int nregions) throws Exception {
+ rsDispatcher.setMockRsExecutor(executor);
+
+ AssignProcedure[] assignments = new AssignProcedure[nregions];
+
+ long st = System.currentTimeMillis();
+ bulkSubmit(assignments);
+
+ for (int i = 0; i < assignments.length; ++i) {
+ ProcedureTestingUtility.waitProcedure(
+ master.getMasterProcedureExecutor(), assignments[i]);
+ assertTrue(assignments[i].toString(), assignments[i].isSuccess());
+ }
+ long et = System.currentTimeMillis();
+ float sec = ((et - st) / 1000.0f);
+ LOG.info(String.format("[T] Assigning %dprocs in %s (%.2fproc/sec)",
+ assignments.length, StringUtils.humanTimeDiff(et - st), assignments.length / sec));
+ }
+
+ @Test
+ public void testAssignAnAssignedRegion() throws Exception {
+ final TableName tableName = TableName.valueOf("testAssignAnAssignedRegion");
+ final HRegionInfo hri = createRegionInfo(tableName, 1);
+
+ rsDispatcher.setMockRsExecutor(new GoodRsExecutor());
+
+ final Future<byte[]> futureA = submitProcedure(am.createAssignProcedure(hri, false));
+
+ // wait first assign
+ waitOnFuture(futureA);
+ am.getRegionStates().isRegionInState(hri, State.OPEN);
+ // Second should be a noop. We should recognize region is already OPEN internally
+ // and skip out doing nothing.
+ // wait second assign
+ final Future<byte[]> futureB = submitProcedure(am.createAssignProcedure(hri, false));
+ waitOnFuture(futureB);
+ am.getRegionStates().isRegionInState(hri, State.OPEN);
+ // TODO: What else can we do to ensure just a noop.
+ }
+
+ @Test
+ public void testUnassignAnUnassignedRegion() throws Exception {
+ final TableName tableName = TableName.valueOf("testUnassignAnUnassignedRegion");
+ final HRegionInfo hri = createRegionInfo(tableName, 1);
+
+ rsDispatcher.setMockRsExecutor(new GoodRsExecutor());
+
+ // assign the region first
+ waitOnFuture(submitProcedure(am.createAssignProcedure(hri, false)));
+
+ final Future<byte[]> futureA = submitProcedure(am.createUnassignProcedure(hri, null, false));
+
+ // Wait first unassign.
+ waitOnFuture(futureA);
+ am.getRegionStates().isRegionInState(hri, State.CLOSED);
+ // Second should be a noop. We should recognize region is already CLOSED internally
+ // and skip out doing nothing.
+ final Future<byte[]> futureB =
+ submitProcedure(am.createUnassignProcedure(hri,
+ ServerName.valueOf("example.org,1234,1"), false));
+ waitOnFuture(futureB);
+ // Ensure we are still CLOSED.
+ am.getRegionStates().isRegionInState(hri, State.CLOSED);
+ // TODO: What else can we do to ensure just a noop.
+ }
+
+ private Future<byte[]> submitProcedure(final Procedure proc) {
+ return ProcedureSyncWait.submitProcedure(master.getMasterProcedureExecutor(), proc);
+ }
+
+ private byte[] waitOnFuture(final Future<byte[]> future) throws Exception {
+ try {
+ return future.get(5, TimeUnit.SECONDS);
+ } catch (ExecutionException e) {
+ LOG.info("ExecutionException", e);
+ throw (Exception)e.getCause();
+ }
+ }
+
+ // ============================================================================================
+ // Helpers
+ // ============================================================================================
+ private void bulkSubmit(final AssignProcedure[] procs) throws Exception {
+ final Thread[] threads = new Thread[PROC_NTHREADS];
+ for (int i = 0; i < threads.length; ++i) {
+ final int threadId = i;
+ threads[i] = new Thread() {
+ @Override
+ public void run() {
+ TableName tableName = TableName.valueOf("table-" + threadId);
+ int n = (procs.length / threads.length);
+ int start = threadId * n;
+ int stop = start + n;
+ for (int j = start; j < stop; ++j) {
+ procs[j] = createAndSubmitAssign(tableName, j);
+ }
+ }
+ };
+ threads[i].start();
+ }
+ for (int i = 0; i < threads.length; ++i) {
+ threads[i].join();
+ }
+ for (int i = procs.length - 1; i >= 0 && procs[i] == null; --i) {
+ procs[i] = createAndSubmitAssign(TableName.valueOf("table-sync"), i);
+ }
+ }
+
+ private AssignProcedure createAndSubmitAssign(TableName tableName, int regionId) {
+ HRegionInfo hri = createRegionInfo(tableName, regionId);
+ AssignProcedure proc = am.createAssignProcedure(hri, false);
+ master.getMasterProcedureExecutor().submitProcedure(proc);
+ return proc;
+ }
+
+ private UnassignProcedure createAndSubmitUnassign(TableName tableName, int regionId) {
+ HRegionInfo hri = createRegionInfo(tableName, regionId);
+ UnassignProcedure proc = am.createUnassignProcedure(hri, null, false);
+ master.getMasterProcedureExecutor().submitProcedure(proc);
+ return proc;
+ }
+
+ private HRegionInfo createRegionInfo(final TableName tableName, final long regionId) {
+ return new HRegionInfo(tableName,
+ Bytes.toBytes(regionId), Bytes.toBytes(regionId + 1), false, 0);
+ }
+
+ private void sendTransitionReport(final ServerName serverName,
+ final RegionInfo regionInfo, final TransitionCode state) throws IOException {
+ ReportRegionStateTransitionRequest.Builder req =
+ ReportRegionStateTransitionRequest.newBuilder();
+ req.setServer(ProtobufUtil.toServerName(serverName));
+ req.addTransition(RegionStateTransition.newBuilder()
+ .addRegionInfo(regionInfo)
+ .setTransitionCode(state)
+ .setOpenSeqNum(1)
+ .build());
+ am.reportRegionStateTransition(req.build());
+ }
+
+ private void doCrash(final ServerName serverName) {
+ this.am.submitServerCrash(serverName, false/*No WALs here*/);
+ }
+
+ private class NoopRsExecutor implements MockRSExecutor {
+ public ExecuteProceduresResponse sendRequest(ServerName server,
+ ExecuteProceduresRequest request) throws IOException {
+ ExecuteProceduresResponse.Builder builder = ExecuteProceduresResponse.newBuilder();
+ if (request.getOpenRegionCount() > 0) {
+ for (OpenRegionRequest req: request.getOpenRegionList()) {
+ OpenRegionResponse.Builder resp = OpenRegionResponse.newBuilder();
+ for (RegionOpenInfo openReq: req.getOpenInfoList()) {
+ RegionOpeningState state = execOpenRegion(server, openReq);
+ if (state != null) {
+ resp.addOpeningState(state);
+ }
+ }
+ builder.addOpenRegion(resp.build());
+ }
+ }
+ if (request.getCloseRegionCount() > 0) {
+ for (CloseRegionRequest req: request.getCloseRegionList()) {
+ CloseRegionResponse resp = execCloseRegion(server,
+ req.getRegion().getValue().toByteArray());
+ if (resp != null) {
+ builder.addCloseRegion(resp);
+ }
+ }
+ }
+ return ExecuteProceduresResponse.newBuilder().build();
+ }
+
+ protected RegionOpeningState execOpenRegion(ServerName server, RegionOpenInfo regionInfo)
+ throws IOException {
+ return null;
+ }
+
+ protected CloseRegionResponse execCloseRegion(ServerName server, byte[] regionName)
+ throws IOException {
+ return null;
+ }
+ }
+
+ private class GoodRsExecutor extends NoopRsExecutor {
+ @Override
+ protected RegionOpeningState execOpenRegion(ServerName server, RegionOpenInfo openReq)
+ throws IOException {
+ sendTransitionReport(server, openReq.getRegion(), TransitionCode.OPENED);
+ // Concurrency?
+ // Now update the state of our cluster in regionsToRegionServers.
+ SortedSet<byte []> regions = regionsToRegionServers.get(server);
+ if (regions == null) {
+ regions = new ConcurrentSkipListSet<byte[]>(Bytes.BYTES_COMPARATOR);
+ regionsToRegionServers.put(server, regions);
+ }
+ HRegionInfo hri = HRegionInfo.convert(openReq.getRegion());
+ if (regions.contains(hri.getRegionName())) {
+ throw new UnsupportedOperationException(hri.getRegionNameAsString());
+ }
+ regions.add(hri.getRegionName());
+ return RegionOpeningState.OPENED;
+ }
+
+ @Override
+ protected CloseRegionResponse execCloseRegion(ServerName server, byte[] regionName)
+ throws IOException {
+ HRegionInfo hri = am.getRegionInfo(regionName);
+ sendTransitionReport(server, HRegionInfo.convert(hri), TransitionCode.CLOSED);
+ return CloseRegionResponse.newBuilder().setClosed(true).build();
+ }
+ }
+
+ private static class ServerNotYetRunningRsExecutor implements MockRSExecutor {
+ public ExecuteProceduresResponse sendRequest(ServerName server, ExecuteProceduresRequest req)
+ throws IOException {
+ throw new ServerNotRunningYetException("wait on server startup");
+ }
+ }
+
+ private static class FaultyRsExecutor implements MockRSExecutor {
+ private final IOException exception;
+
+ public FaultyRsExecutor(final IOException exception) {
+ this.exception = exception;
+ }
+
+ public ExecuteProceduresResponse sendRequest(ServerName server, ExecuteProceduresRequest req)
+ throws IOException {
+ throw exception;
+ }
+ }
+
+ private class SocketTimeoutRsExecutor extends GoodRsExecutor {
+ private final int maxSocketTimeoutRetries;
+ private final int maxServerRetries;
+
+ private ServerName lastServer;
+ private int sockTimeoutRetries;
+ private int serverRetries;
+
+ public SocketTimeoutRsExecutor(int maxSocketTimeoutRetries, int maxServerRetries) {
+ this.maxServerRetries = maxServerRetries;
+ this.maxSocketTimeoutRetries = maxSocketTimeoutRetries;
+ }
+
+ public ExecuteProceduresResponse sendRequest(ServerName server, ExecuteProceduresRequest req)
+ throws IOException {
+ // SocketTimeoutException should be a temporary problem
+ // unless the server will be declared dead.
+ if (sockTimeoutRetries++ < maxSocketTimeoutRetries) {
+ if (sockTimeoutRetries == 1) assertNotEquals(lastServer, server);
+ lastServer = server;
+ LOG.debug("Socket timeout for server=" + server + " retries=" + sockTimeoutRetries);
+ throw new SocketTimeoutException("simulate socket timeout");
+ } else if (serverRetries++ < maxServerRetries) {
+ LOG.info("Mark server=" + server + " as dead. serverRetries=" + serverRetries);
+ master.getServerManager().moveFromOnlineToDeadServers(server);
+ sockTimeoutRetries = 0;
+ throw new SocketTimeoutException("simulate socket timeout");
+ } else {
+ return super.sendRequest(server, req);
+ }
+ }
+ }
+
+ /**
+ * Takes open request and then returns nothing so acts like a RS that went zombie.
+ * No response (so proc is stuck/suspended on the Master and won't wake up.). We
+ * then send in a crash for this server after a few seconds; crash is supposed to
+ * take care of the suspended procedures.
+ */
+ private class HangThenRSCrashExecutor extends GoodRsExecutor {
+ private int invocations;
+
+ @Override
+ protected RegionOpeningState execOpenRegion(final ServerName server, RegionOpenInfo openReq)
+ throws IOException {
+ if (this.invocations++ > 0) {
+ // Return w/o problem the second time through here.
+ return super.execOpenRegion(server, openReq);
+ }
+ // The procedure on master will just hang forever because nothing comes back
+ // from the RS in this case.
+ LOG.info("Return null response from serverName=" + server + "; means STUCK...TODO timeout");
+ executor.schedule(new Runnable() {
+ @Override
+ public void run() {
+ LOG.info("Sending in CRASH of " + server);
+ doCrash(server);
+ }
+ }, 1, TimeUnit.SECONDS);
+ return null;
+ }
+ }
+
+ private class HangOnCloseThenRSCrashExecutor extends GoodRsExecutor {
+ public static final int TYPES_OF_FAILURE = 6;
+ private int invocations;
+
+ @Override
+ protected CloseRegionResponse execCloseRegion(ServerName server, byte[] regionName)
+ throws IOException {
+ switch (this.invocations++) {
+ case 0: throw new NotServingRegionException("Fake");
+ case 1: throw new RegionServerAbortedException("Fake!");
+ case 2: throw new RegionServerStoppedException("Fake!");
+ case 3: throw new ServerNotRunningYetException("Fake!");
+ case 4:
+ LOG.info("Return null response from serverName=" + server + "; means STUCK...TODO timeout");
+ executor.schedule(new Runnable() {
+ @Override
+ public void run() {
+ LOG.info("Sending in CRASH of " + server);
+ doCrash(server);
+ }
+ }, 1, TimeUnit.SECONDS);
+ return null;
+ default:
+ return super.execCloseRegion(server, regionName);
+ }
+ }
+ }
+
+ private class RandRsExecutor extends NoopRsExecutor {
+ private final Random rand = new Random();
+
+ public ExecuteProceduresResponse sendRequest(ServerName server, ExecuteProceduresRequest req)
+ throws IOException {
+ switch (rand.nextInt(5)) {
+ case 0: throw new ServerNotRunningYetException("wait on server startup");
+ case 1: throw new SocketTimeoutException("simulate socket timeout");
+ case 2: throw new RemoteException("java.io.IOException", "unexpected exception");
+ }
+ return super.sendRequest(server, req);
+ }
+
+ @Override
+ protected RegionOpeningState execOpenRegion(final ServerName server, RegionOpenInfo openReq)
+ throws IOException {
+ switch (rand.nextInt(6)) {
+ case 0:
+ LOG.info("Return OPENED response");
+ sendTransitionReport(server, openReq.getRegion(), TransitionCode.OPENED);
+ return OpenRegionResponse.RegionOpeningState.OPENED;
+ case 1:
+ LOG.info("Return transition report that OPENED/ALREADY_OPENED response");
+ sendTransitionReport(server, openReq.getRegion(), TransitionCode.OPENED);
+ return OpenRegionResponse.RegionOpeningState.ALREADY_OPENED;
+ case 2:
+ LOG.info("Return transition report that FAILED_OPEN/FAILED_OPENING response");
+ sendTransitionReport(server, openReq.getRegion(), TransitionCode.FAILED_OPEN);
+ return OpenRegionResponse.RegionOpeningState.FAILED_OPENING;
+ }
+ // The procedure on master will just hang forever because nothing comes back
+ // from the RS in this case.
+ LOG.info("Return null as response; means proc stuck so we send in a crash report after a few seconds...");
+ executor.schedule(new Runnable() {
+ @Override
+ public void run() {
+ LOG.info("Delayed CRASHING of " + server);
+ doCrash(server);
+ }
+ }, 5, TimeUnit.SECONDS);
+ return null;
+ }
+
+ @Override
+ protected CloseRegionResponse execCloseRegion(ServerName server, byte[] regionName)
+ throws IOException {
+ CloseRegionResponse.Builder resp = CloseRegionResponse.newBuilder();
+ boolean closed = rand.nextBoolean();
+ if (closed) {
+ HRegionInfo hri = am.getRegionInfo(regionName);
+ sendTransitionReport(server, HRegionInfo.convert(hri), TransitionCode.CLOSED);
+ }
+ resp.setClosed(closed);
+ return resp.build();
+ }
+ }
+
+ private interface MockRSExecutor {
+ ExecuteProceduresResponse sendRequest(ServerName server, ExecuteProceduresRequest req)
+ throws IOException;
+ }
+
+ private class MockRSProcedureDispatcher extends RSProcedureDispatcher {
+ private MockRSExecutor mockRsExec;
+
+ public MockRSProcedureDispatcher(final MasterServices master) {
+ super(master);
+ }
+
+ public void setMockRsExecutor(final MockRSExecutor mockRsExec) {
+ this.mockRsExec = mockRsExec;
+ }
+
+ @Override
+ protected void remoteDispatch(ServerName serverName, Set<RemoteProcedure> operations) {
+ submitTask(new MockRemoteCall(serverName, operations));
+ }
+
+ private class MockRemoteCall extends ExecuteProceduresRemoteCall {
+ public MockRemoteCall(final ServerName serverName,
+ final Set<RemoteProcedure> operations) {
+ super(serverName, operations);
+ }
+
+ @Override
+ protected ExecuteProceduresResponse sendRequest(final ServerName serverName,
+ final ExecuteProceduresRequest request) throws IOException {
+ return mockRsExec.sendRequest(serverName, request);
+ }
+ }
+ }
+
+ private class GoodSplitExecutor extends NoopRsExecutor {
+
+ /*
+ @Override
+ protected RegionOpeningState execOpenRegion(ServerName server, RegionOpenInfo openReq)
+ throws IOException {
+ sendTransitionReport(server, openReq.getRegion(), TransitionCode.OPENED);
+ // Concurrency?
+ // Now update the state of our cluster in regionsToRegionServers.
+ SortedSet<byte []> regions = regionsToRegionServers.get(server);
+ if (regions == null) {
+ regions = new ConcurrentSkipListSet<byte[]>(Bytes.BYTES_COMPARATOR);
+ regionsToRegionServers.put(server, regions);
+ }
+ HRegionInfo hri = HRegionInfo.convert(openReq.getRegion());
+ if (regions.contains(hri.getRegionName())) {
+ throw new UnsupportedOperationException(hri.getRegionNameAsString());
+ }
+ regions.add(hri.getRegionName());
+ return RegionOpeningState.OPENED;
+ }
+
+ @Override
+ protected CloseRegionResponse execCloseRegion(ServerName server, byte[] regionName)
+ throws IOException {
+ HRegionInfo hri = am.getRegionInfo(regionName);
+ sendTransitionReport(server, HRegionInfo.convert(hri), TransitionCode.CLOSED);
+ return CloseRegionResponse.newBuilder().setClosed(true).build();
+ }*/
+
+ }
+}
\ No newline at end of file
http://git-wip-us.apache.org/repos/asf/hbase/blob/657a5d46/hbase-server/src/test/java/org/apache/hadoop/hbase/master/assignment/TestAssignmentOnRSCrash.java
----------------------------------------------------------------------
diff --git a/hbase-server/src/test/java/org/apache/hadoop/hbase/master/assignment/TestAssignmentOnRSCrash.java b/hbase-server/src/test/java/org/apache/hadoop/hbase/master/assignment/TestAssignmentOnRSCrash.java
new file mode 100644
index 0000000..e4cec45
--- /dev/null
+++ b/hbase-server/src/test/java/org/apache/hadoop/hbase/master/assignment/TestAssignmentOnRSCrash.java
@@ -0,0 +1,185 @@
+/**
+ * Licensed to the Apache Software Foundation (ASF) under one
+ * or more contributor license agreements. See the NOTICE file
+ * distributed with this work for additional information
+ * regarding copyright ownership. The ASF licenses this file
+ * to you under the Apache License, Version 2.0 (the
+ * "License"); you may not use this file except in compliance
+ * with the License. You may obtain a copy of the License at
+ *
+ * http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+package org.apache.hadoop.hbase.master.assignment;
+
+import java.io.IOException;
+
+import org.apache.commons.logging.Log;
+import org.apache.commons.logging.LogFactory;
+import org.apache.hadoop.conf.Configuration;
+import org.apache.hadoop.hbase.HBaseTestingUtility;
+import org.apache.hadoop.hbase.HRegionInfo;
+import org.apache.hadoop.hbase.TableName;
+import org.apache.hadoop.hbase.ServerName;
+import org.apache.hadoop.hbase.client.Get;
+import org.apache.hadoop.hbase.client.Put;
+import org.apache.hadoop.hbase.client.Result;
+import org.apache.hadoop.hbase.client.Table;
+import org.apache.hadoop.hbase.testclassification.MasterTests;
+import org.apache.hadoop.hbase.testclassification.LargeTests;
+import org.apache.hadoop.hbase.master.procedure.MasterProcedureConstants;
+import org.apache.hadoop.hbase.util.Bytes;
+
+import org.junit.After;
+import org.junit.Before;
+import org.junit.Test;
+import org.junit.experimental.categories.Category;
+
+import static org.junit.Assert.assertEquals;
+import static org.junit.Assert.assertNotEquals;
+import static org.junit.Assert.assertTrue;
+
+@Category({MasterTests.class, LargeTests.class})
+public class TestAssignmentOnRSCrash {
+ private static final Log LOG = LogFactory.getLog(TestAssignmentOnRSCrash.class);
+
+ private static final TableName TEST_TABLE = TableName.valueOf("testb");
+ private static final String FAMILY_STR = "f";
+ private static final byte[] FAMILY = Bytes.toBytes(FAMILY_STR);
+ private static final int NUM_RS = 3;
+
+ private HBaseTestingUtility UTIL;
+
+ private static void setupConf(Configuration conf) {
+ conf.setInt(MasterProcedureConstants.MASTER_PROCEDURE_THREADS, 1);
+ conf.set("hbase.balancer.tablesOnMaster", "none");
+ }
+
+ @Before
+ public void setup() throws Exception {
+ UTIL = new HBaseTestingUtility();
+
+ setupConf(UTIL.getConfiguration());
+ UTIL.startMiniCluster(NUM_RS);
+
+ UTIL.createTable(TEST_TABLE, new byte[][] { FAMILY }, new byte[][] {
+ Bytes.toBytes("B"), Bytes.toBytes("D"), Bytes.toBytes("F"), Bytes.toBytes("L")
+ });
+ }
+
+ @After
+ public void tearDown() throws Exception {
+ UTIL.shutdownMiniCluster();
+ }
+
+ @Test(timeout=30000)
+ public void testKillRsWithUserRegionWithData() throws Exception {
+ testCrashRsWithUserRegion(true, true);
+ }
+
+ @Test(timeout=30000)
+ public void testKillRsWithUserRegionWithoutData() throws Exception {
+ testCrashRsWithUserRegion(true, false);
+ }
+
+ @Test(timeout=30000)
+ public void testStopRsWithUserRegionWithData() throws Exception {
+ testCrashRsWithUserRegion(false, true);
+ }
+
+ @Test(timeout=30000)
+ public void testStopRsWithUserRegionWithoutData() throws Exception {
+ testCrashRsWithUserRegion(false, false);
+ }
+
+ private void testCrashRsWithUserRegion(final boolean kill, final boolean withData)
+ throws Exception {
+ final int NROWS = 100;
+ int nkilled = 0;
+ for (HRegionInfo hri: UTIL.getHBaseAdmin().getTableRegions(TEST_TABLE)) {
+ ServerName serverName = AssignmentTestingUtil.getServerHoldingRegion(UTIL, hri);
+ if (AssignmentTestingUtil.isServerHoldingMeta(UTIL, serverName)) continue;
+
+ if (withData) {
+ testInsert(hri, NROWS);
+ }
+
+ // wait for regions to enter in transition and then to get out of transition
+ AssignmentTestingUtil.crashRs(UTIL, serverName, kill);
+ AssignmentTestingUtil.waitForRegionToBeInTransition(UTIL, hri);
+ UTIL.waitUntilNoRegionsInTransition();
+
+ if (withData) {
+ assertEquals(NROWS, testGet(hri, NROWS));
+ }
+
+ // region should be moved to another RS
+ assertNotEquals(serverName, AssignmentTestingUtil.getServerHoldingRegion(UTIL, hri));
+
+ if (++nkilled == (NUM_RS - 1)) {
+ break;
+ }
+ }
+ assertTrue("expected RSs to be killed", nkilled > 0);
+ }
+
+ @Test(timeout=60000)
+ public void testKillRsWithMetaRegion() throws Exception {
+ testCrashRsWithMetaRegion(true);
+ }
+
+ @Test(timeout=60000)
+ public void testStopRsWithMetaRegion() throws Exception {
+ testCrashRsWithMetaRegion(false);
+ }
+
+ private void testCrashRsWithMetaRegion(final boolean kill) throws Exception {
+ int nkilled = 0;
+ for (HRegionInfo hri: AssignmentTestingUtil.getMetaRegions(UTIL)) {
+ ServerName serverName = AssignmentTestingUtil.crashRsWithRegion(UTIL, hri, kill);
+
+ // wait for region to enter in transition and then to get out of transition
+ AssignmentTestingUtil.waitForRegionToBeInTransition(UTIL, hri);
+ UTIL.waitUntilNoRegionsInTransition();
+ testGet(hri, 10);
+
+ // region should be moved to another RS
+ assertNotEquals(serverName, AssignmentTestingUtil.getServerHoldingRegion(UTIL, hri));
+
+ if (++nkilled == (NUM_RS - 1)) {
+ break;
+ }
+ }
+ assertTrue("expected RSs to be killed", nkilled > 0);
+ }
+
+ private void testInsert(final HRegionInfo hri, final int nrows) throws IOException {
+ final Table table = UTIL.getConnection().getTable(hri.getTable());
+ for (int i = 0; i < nrows; ++i) {
+ final byte[] row = Bytes.add(hri.getStartKey(), Bytes.toBytes(i));
+ final Put put = new Put(row);
+ put.addColumn(FAMILY, null, row);
+ table.put(put);
+ }
+ }
+
+ public int testGet(final HRegionInfo hri, final int nrows) throws IOException {
+ int nresults = 0;
+ final Table table = UTIL.getConnection().getTable(hri.getTable());
+ for (int i = 0; i < nrows; ++i) {
+ final byte[] row = Bytes.add(hri.getStartKey(), Bytes.toBytes(i));
+ final Result result = table.get(new Get(row));
+ if (result != null && !result.isEmpty() &&
+ Bytes.equals(row, result.getValue(FAMILY, null))) {
+ nresults++;
+ }
+ }
+ return nresults;
+ }
+}
http://git-wip-us.apache.org/repos/asf/hbase/blob/657a5d46/hbase-server/src/test/java/org/apache/hadoop/hbase/master/assignment/TestMergeTableRegionsProcedure.java
----------------------------------------------------------------------
diff --git a/hbase-server/src/test/java/org/apache/hadoop/hbase/master/assignment/TestMergeTableRegionsProcedure.java b/hbase-server/src/test/java/org/apache/hadoop/hbase/master/assignment/TestMergeTableRegionsProcedure.java
new file mode 100644
index 0000000..44fd575
--- /dev/null
+++ b/hbase-server/src/test/java/org/apache/hadoop/hbase/master/assignment/TestMergeTableRegionsProcedure.java
@@ -0,0 +1,260 @@
+/**
+ * Licensed to the Apache Software Foundation (ASF) under one
+ * or more contributor license agreements. See the NOTICE file
+ * distributed with this work for additional information
+ * regarding copyright ownership. The ASF licenses this file
+ * to you under the Apache License, Version 2.0 (the
+ * "License"); you may not use this file except in compliance
+ * with the License. You may obtain a copy of the License at
+ *
+ * http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+package org.apache.hadoop.hbase.master.assignment;
+
+import static org.junit.Assert.assertEquals;
+import static org.junit.Assert.assertTrue;
+
+import java.util.List;
+
+import org.apache.commons.logging.Log;
+import org.apache.commons.logging.LogFactory;
+import org.apache.hadoop.conf.Configuration;
+import org.apache.hadoop.hbase.CategoryBasedTimeout;
+import org.apache.hadoop.hbase.HBaseTestingUtility;
+import org.apache.hadoop.hbase.HColumnDescriptor;
+import org.apache.hadoop.hbase.HConstants;
+import org.apache.hadoop.hbase.HRegionInfo;
+import org.apache.hadoop.hbase.HTableDescriptor;
+import org.apache.hadoop.hbase.MetaTableAccessor;
+import org.apache.hadoop.hbase.TableName;
+import org.apache.hadoop.hbase.client.Admin;
+import org.apache.hadoop.hbase.master.procedure.MasterProcedureConstants;
+import org.apache.hadoop.hbase.master.procedure.MasterProcedureEnv;
+import org.apache.hadoop.hbase.master.procedure.MasterProcedureTestingUtility;
+import org.apache.hadoop.hbase.procedure2.ProcedureExecutor;
+import org.apache.hadoop.hbase.procedure2.ProcedureTestingUtility;
+import org.apache.hadoop.hbase.testclassification.MasterTests;
+import org.apache.hadoop.hbase.testclassification.MediumTests;
+import org.apache.hadoop.hbase.util.Bytes;
+import org.apache.hadoop.hbase.util.Pair;
+import org.junit.After;
+import org.junit.AfterClass;
+import org.junit.Before;
+import org.junit.BeforeClass;
+import org.junit.Rule;
+import org.junit.Test;
+import org.junit.experimental.categories.Category;
+import org.junit.rules.TestName;
+import org.junit.rules.TestRule;
+
+@Category({MasterTests.class, MediumTests.class})
+public class TestMergeTableRegionsProcedure {
+ private static final Log LOG = LogFactory.getLog(TestMergeTableRegionsProcedure.class);
+ @Rule public final TestRule timeout = CategoryBasedTimeout.builder().
+ withTimeout(this.getClass()).withLookingForStuckThread(true).build();
+ @Rule public final TestName name = new TestName();
+
+ protected static final HBaseTestingUtility UTIL = new HBaseTestingUtility();
+ private static long nonceGroup = HConstants.NO_NONCE;
+ private static long nonce = HConstants.NO_NONCE;
+
+ private static final int initialRegionCount = 4;
+ private final static byte[] FAMILY = Bytes.toBytes("FAMILY");
+ final static Configuration conf = UTIL.getConfiguration();
+ private static Admin admin;
+
+ private static void setupConf(Configuration conf) {
+ // Reduce the maximum attempts to speed up the test
+ conf.setInt("hbase.assignment.maximum.attempts", 3);
+ conf.setInt("hbase.master.maximum.ping.server.attempts", 3);
+ conf.setInt("hbase.master.ping.server.retry.sleep.interval", 1);
+ conf.setInt(MasterProcedureConstants.MASTER_PROCEDURE_THREADS, 1);
+ }
+
+ @BeforeClass
+ public static void setupCluster() throws Exception {
+ setupConf(conf);
+ UTIL.startMiniCluster(1);
+ admin = UTIL.getHBaseAdmin();
+ }
+
+ @AfterClass
+ public static void cleanupTest() throws Exception {
+ try {
+ UTIL.shutdownMiniCluster();
+ } catch (Exception e) {
+ LOG.warn("failure shutting down cluster", e);
+ }
+ }
+
+ @Before
+ public void setup() throws Exception {
+ resetProcExecutorTestingKillFlag();
+ nonceGroup =
+ MasterProcedureTestingUtility.generateNonceGroup(UTIL.getHBaseCluster().getMaster());
+ nonce = MasterProcedureTestingUtility.generateNonce(UTIL.getHBaseCluster().getMaster());
+ // Turn off balancer so it doesn't cut in and mess up our placements.
+ UTIL.getHBaseAdmin().setBalancerRunning(false, true);
+ // Turn off the meta scanner so it don't remove parent on us.
+ UTIL.getHBaseCluster().getMaster().setCatalogJanitorEnabled(false);
+ resetProcExecutorTestingKillFlag();
+ }
+
+ @After
+ public void tearDown() throws Exception {
+ resetProcExecutorTestingKillFlag();
+ for (HTableDescriptor htd: UTIL.getHBaseAdmin().listTables()) {
+ LOG.info("Tear down, remove table=" + htd.getTableName());
+ UTIL.deleteTable(htd.getTableName());
+ }
+ }
+
+ private void resetProcExecutorTestingKillFlag() {
+ final ProcedureExecutor<MasterProcedureEnv> procExec = getMasterProcedureExecutor();
+ ProcedureTestingUtility.setKillAndToggleBeforeStoreUpdate(procExec, false);
+ assertTrue("expected executor to be running", procExec.isRunning());
+ }
+
+ /**
+ * This tests two region merges
+ */
+ @Test
+ public void testMergeTwoRegions() throws Exception {
+ final TableName tableName = TableName.valueOf(this.name.getMethodName());
+ final ProcedureExecutor<MasterProcedureEnv> procExec = getMasterProcedureExecutor();
+
+ List<HRegionInfo> tableRegions = createTable(tableName);
+
+ HRegionInfo[] regionsToMerge = new HRegionInfo[2];
+ regionsToMerge[0] = tableRegions.get(0);
+ regionsToMerge[1] = tableRegions.get(1);
+ MergeTableRegionsProcedure proc =
+ new MergeTableRegionsProcedure(procExec.getEnvironment(), regionsToMerge, true);
+ long procId = procExec.submitProcedure(proc);
+ ProcedureTestingUtility.waitProcedure(procExec, procId);
+ ProcedureTestingUtility.assertProcNotFailed(procExec, procId);
+ assertRegionCount(tableName, initialRegionCount - 1);
+ Pair<HRegionInfo, HRegionInfo> pair =
+ MetaTableAccessor.getRegionsFromMergeQualifier(UTIL.getConnection(),
+ proc.getMergedRegion().getRegionName());
+ assertTrue(pair.getFirst() != null && pair.getSecond() != null);
+
+ // Can I purge the merged regions from hbase:meta? Check that all went
+ // well by looking at the merged row up in hbase:meta. It should have no
+ // more mention of the merged regions; they are purged as last step in
+ // the merged regions cleanup.
+ UTIL.getHBaseCluster().getMaster().setCatalogJanitorEnabled(true);
+ UTIL.getHBaseCluster().getMaster().getCatalogJanitor().triggerNow();
+ while (pair != null && pair.getFirst() != null && pair.getSecond() != null) {
+ pair = MetaTableAccessor.getRegionsFromMergeQualifier(UTIL.getConnection(),
+ proc.getMergedRegion().getRegionName());
+ }
+ }
+
+ /**
+ * This tests two concurrent region merges
+ */
+ @Test
+ public void testMergeRegionsConcurrently() throws Exception {
+ final TableName tableName = TableName.valueOf("testMergeRegionsConcurrently");
+ final ProcedureExecutor<MasterProcedureEnv> procExec = getMasterProcedureExecutor();
+
+ List<HRegionInfo> tableRegions = createTable(tableName);
+
+ HRegionInfo[] regionsToMerge1 = new HRegionInfo[2];
+ HRegionInfo[] regionsToMerge2 = new HRegionInfo[2];
+ regionsToMerge1[0] = tableRegions.get(0);
+ regionsToMerge1[1] = tableRegions.get(1);
+ regionsToMerge2[0] = tableRegions.get(2);
+ regionsToMerge2[1] = tableRegions.get(3);
+
+ long procId1 = procExec.submitProcedure(new MergeTableRegionsProcedure(
+ procExec.getEnvironment(), regionsToMerge1, true));
+ long procId2 = procExec.submitProcedure(new MergeTableRegionsProcedure(
+ procExec.getEnvironment(), regionsToMerge2, true));
+ ProcedureTestingUtility.waitProcedure(procExec, procId1);
+ ProcedureTestingUtility.waitProcedure(procExec, procId2);
+ ProcedureTestingUtility.assertProcNotFailed(procExec, procId1);
+ ProcedureTestingUtility.assertProcNotFailed(procExec, procId2);
+ assertRegionCount(tableName, initialRegionCount - 2);
+ }
+
+ @Test
+ public void testRecoveryAndDoubleExecution() throws Exception {
+ final TableName tableName = TableName.valueOf("testRecoveryAndDoubleExecution");
+ final ProcedureExecutor<MasterProcedureEnv> procExec = getMasterProcedureExecutor();
+
+ List<HRegionInfo> tableRegions = createTable(tableName);
+
+ ProcedureTestingUtility.waitNoProcedureRunning(procExec);
+ ProcedureTestingUtility.setKillAndToggleBeforeStoreUpdate(procExec, true);
+
+ HRegionInfo[] regionsToMerge = new HRegionInfo[2];
+ regionsToMerge[0] = tableRegions.get(0);
+ regionsToMerge[1] = tableRegions.get(1);
+
+ long procId = procExec.submitProcedure(
+ new MergeTableRegionsProcedure(procExec.getEnvironment(), regionsToMerge, true));
+
+ // Restart the executor and execute the step twice
+ MasterProcedureTestingUtility.testRecoveryAndDoubleExecution(procExec, procId);
+ ProcedureTestingUtility.assertProcNotFailed(procExec, procId);
+
+ assertRegionCount(tableName, initialRegionCount - 1);
+ }
+
+ @Test
+ public void testRollbackAndDoubleExecution() throws Exception {
+ final TableName tableName = TableName.valueOf("testRollbackAndDoubleExecution");
+ final ProcedureExecutor<MasterProcedureEnv> procExec = getMasterProcedureExecutor();
+
+ List<HRegionInfo> tableRegions = createTable(tableName);
+
+ ProcedureTestingUtility.waitNoProcedureRunning(procExec);
+ ProcedureTestingUtility.setKillAndToggleBeforeStoreUpdate(procExec, true);
+
+ HRegionInfo[] regionsToMerge = new HRegionInfo[2];
+ regionsToMerge[0] = tableRegions.get(0);
+ regionsToMerge[1] = tableRegions.get(1);
+
+ long procId = procExec.submitProcedure(
+ new MergeTableRegionsProcedure(procExec.getEnvironment(), regionsToMerge, true));
+
+ // Failing before MERGE_TABLE_REGIONS_UPDATE_META we should trigger the rollback
+ // NOTE: the 5 (number before MERGE_TABLE_REGIONS_UPDATE_META step) is
+ // hardcoded, so you have to look at this test at least once when you add a new step.
+ int numberOfSteps = 5;
+ MasterProcedureTestingUtility.testRollbackAndDoubleExecution(procExec, procId, numberOfSteps);
+ }
+
+ private List<HRegionInfo> createTable(final TableName tableName)
+ throws Exception {
+ HTableDescriptor desc = new HTableDescriptor(tableName);
+ desc.addFamily(new HColumnDescriptor(FAMILY));
+ byte[][] splitRows = new byte[initialRegionCount - 1][];
+ for (int i = 0; i < splitRows.length; ++i) {
+ splitRows[i] = Bytes.toBytes(String.format("%d", i));
+ }
+ admin.createTable(desc, splitRows);
+ return assertRegionCount(tableName, initialRegionCount);
+ }
+
+ public List<HRegionInfo> assertRegionCount(final TableName tableName, final int nregions)
+ throws Exception {
+ UTIL.waitUntilNoRegionsInTransition();
+ List<HRegionInfo> tableRegions = admin.getTableRegions(tableName);
+ assertEquals(nregions, tableRegions.size());
+ return tableRegions;
+ }
+
+ private ProcedureExecutor<MasterProcedureEnv> getMasterProcedureExecutor() {
+ return UTIL.getHBaseCluster().getMaster().getMasterProcedureExecutor();
+ }
+}
\ No newline at end of file
http://git-wip-us.apache.org/repos/asf/hbase/blob/657a5d46/hbase-server/src/test/java/org/apache/hadoop/hbase/master/assignment/TestRegionStates.java
----------------------------------------------------------------------
diff --git a/hbase-server/src/test/java/org/apache/hadoop/hbase/master/assignment/TestRegionStates.java b/hbase-server/src/test/java/org/apache/hadoop/hbase/master/assignment/TestRegionStates.java
new file mode 100644
index 0000000..003dfdd
--- /dev/null
+++ b/hbase-server/src/test/java/org/apache/hadoop/hbase/master/assignment/TestRegionStates.java
@@ -0,0 +1,224 @@
+/**
+ * Licensed to the Apache Software Foundation (ASF) under one
+ * or more contributor license agreements. See the NOTICE file
+ * distributed with this work for additional information
+ * regarding copyright ownership. The ASF licenses this file
+ * to you under the Apache License, Version 2.0 (the
+ * "License"); you may not use this file except in compliance
+ * with the License. You may obtain a copy of the License at
+ *
+ * http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+package org.apache.hadoop.hbase.master.assignment;
+
+import static org.junit.Assert.assertEquals;
+
+import java.lang.Thread.UncaughtExceptionHandler;
+import java.util.List;
+import java.util.concurrent.Callable;
+import java.util.concurrent.ExecutorCompletionService;
+import java.util.concurrent.Future;
+import java.util.concurrent.ThreadPoolExecutor;
+import java.util.concurrent.TimeUnit;
+
+import org.apache.commons.logging.Log;
+import org.apache.commons.logging.LogFactory;
+import org.apache.hadoop.hbase.HBaseTestingUtility;
+import org.apache.hadoop.hbase.HRegionInfo;
+import org.apache.hadoop.hbase.TableName;
+import org.apache.hadoop.hbase.procedure2.util.StringUtils;
+import org.apache.hadoop.hbase.testclassification.MasterTests;
+import org.apache.hadoop.hbase.testclassification.MediumTests;
+import org.apache.hadoop.hbase.util.Bytes;
+import org.apache.hadoop.hbase.util.Threads;
+import org.junit.After;
+import org.junit.AfterClass;
+import org.junit.Before;
+import org.junit.BeforeClass;
+import org.junit.Test;
+import org.junit.experimental.categories.Category;
+
+@Category({MasterTests.class, MediumTests.class})
+public class TestRegionStates {
+ private static final Log LOG = LogFactory.getLog(TestRegionStates.class);
+
+ protected static final HBaseTestingUtility UTIL = new HBaseTestingUtility();
+
+ private static ThreadPoolExecutor threadPool;
+ private static ExecutorCompletionService executorService;
+
+ @BeforeClass
+ public static void setUp() throws Exception {
+ threadPool = Threads.getBoundedCachedThreadPool(32, 60L, TimeUnit.SECONDS,
+ Threads.newDaemonThreadFactory("ProcedureDispatcher",
+ new UncaughtExceptionHandler() {
+ @Override
+ public void uncaughtException(Thread t, Throwable e) {
+ LOG.warn("Failed thread " + t.getName(), e);
+ }
+ }));
+ executorService = new ExecutorCompletionService(threadPool);
+ }
+
+ @AfterClass
+ public static void tearDown() throws Exception {
+ threadPool.shutdown();
+ }
+
+ @Before
+ public void testSetup() {
+ }
+
+ @After
+ public void testTearDown() throws Exception {
+ while (true) {
+ Future<Object> f = executorService.poll();
+ if (f == null) break;
+ f.get();
+ }
+ }
+
+ private static void waitExecutorService(final int count) throws Exception {
+ for (int i = 0; i < count; ++i) {
+ executorService.take().get();
+ }
+ }
+
+ // ==========================================================================
+ // Regions related
+ // ==========================================================================
+
+ @Test
+ public void testRegionDoubleCreation() throws Exception {
+ // NOTE: HRegionInfo sort by table first, so we are relying on that
+ final TableName TABLE_NAME_A = TableName.valueOf("testOrderedByTableA");
+ final TableName TABLE_NAME_B = TableName.valueOf("testOrderedByTableB");
+ final TableName TABLE_NAME_C = TableName.valueOf("testOrderedByTableC");
+ final RegionStates stateMap = new RegionStates();
+ final int NRUNS = 1000;
+ final int NSMALL_RUNS = 3;
+
+ // add some regions for table B
+ for (int i = 0; i < NRUNS; ++i) {
+ addRegionNode(stateMap, TABLE_NAME_B, i);
+ }
+ // re-add the regions for table B
+ for (int i = 0; i < NRUNS; ++i) {
+ addRegionNode(stateMap, TABLE_NAME_B, i);
+ }
+ waitExecutorService(NRUNS * 2);
+
+ // add two other tables A and C that will be placed before and after table B (sort order)
+ for (int i = 0; i < NSMALL_RUNS; ++i) {
+ addRegionNode(stateMap, TABLE_NAME_A, i);
+ addRegionNode(stateMap, TABLE_NAME_C, i);
+ }
+ waitExecutorService(NSMALL_RUNS * 2);
+ // check for the list of regions of the 3 tables
+ checkTableRegions(stateMap, TABLE_NAME_A, NSMALL_RUNS);
+ checkTableRegions(stateMap, TABLE_NAME_B, NRUNS);
+ checkTableRegions(stateMap, TABLE_NAME_C, NSMALL_RUNS);
+ }
+
+ private void checkTableRegions(final RegionStates stateMap,
+ final TableName tableName, final int nregions) {
+ List<HRegionInfo> hris = stateMap.getRegionsOfTable(tableName, true);
+ assertEquals(nregions, hris.size());
+ for (int i = 1; i < hris.size(); ++i) {
+ long a = Bytes.toLong(hris.get(i - 1).getStartKey());
+ long b = Bytes.toLong(hris.get(i + 0).getStartKey());
+ assertEquals(b, a + 1);
+ }
+ }
+
+ private void addRegionNode(final RegionStates stateMap,
+ final TableName tableName, final long regionId) {
+ executorService.submit(new Callable<Object>() {
+ @Override
+ public Object call() {
+ HRegionInfo hri = new HRegionInfo(tableName,
+ Bytes.toBytes(regionId), Bytes.toBytes(regionId + 1), false, 0);
+ return stateMap.getOrCreateRegionNode(hri);
+ }
+ });
+ }
+
+ private Object createRegionNode(final RegionStates stateMap,
+ final TableName tableName, final long regionId) {
+ return stateMap.getOrCreateRegionNode(createRegionInfo(tableName, regionId));
+ }
+
+ private HRegionInfo createRegionInfo(final TableName tableName, final long regionId) {
+ return new HRegionInfo(tableName,
+ Bytes.toBytes(regionId), Bytes.toBytes(regionId + 1), false, 0);
+ }
+
+ @Test
+ public void testPerf() throws Exception {
+ final TableName TABLE_NAME = TableName.valueOf("testPerf");
+ final int NRUNS = 1000000; // 1M
+ final RegionStates stateMap = new RegionStates();
+
+ long st = System.currentTimeMillis();
+ for (int i = 0; i < NRUNS; ++i) {
+ final int regionId = i;
+ executorService.submit(new Callable<Object>() {
+ @Override
+ public Object call() {
+ HRegionInfo hri = createRegionInfo(TABLE_NAME, regionId);
+ return stateMap.getOrCreateRegionNode(hri);
+ }
+ });
+ }
+ waitExecutorService(NRUNS);
+ long et = System.currentTimeMillis();
+ LOG.info(String.format("PERF STATEMAP INSERT: %s %s/sec",
+ StringUtils.humanTimeDiff(et - st),
+ StringUtils.humanSize(NRUNS / ((et - st) / 1000.0f))));
+
+ st = System.currentTimeMillis();
+ for (int i = 0; i < NRUNS; ++i) {
+ final int regionId = i;
+ executorService.submit(new Callable<Object>() {
+ @Override
+ public Object call() {
+ HRegionInfo hri = createRegionInfo(TABLE_NAME, regionId);
+ return stateMap.getRegionState(hri);
+ }
+ });
+ }
+
+ waitExecutorService(NRUNS);
+ et = System.currentTimeMillis();
+ LOG.info(String.format("PERF STATEMAP GET: %s %s/sec",
+ StringUtils.humanTimeDiff(et - st),
+ StringUtils.humanSize(NRUNS / ((et - st) / 1000.0f))));
+ }
+
+ @Test
+ public void testPerfSingleThread() {
+ final TableName TABLE_NAME = TableName.valueOf("testPerf");
+ final int NRUNS = 1 * 1000000; // 1M
+
+ final RegionStates stateMap = new RegionStates();
+ long st = System.currentTimeMillis();
+ for (int i = 0; i < NRUNS; ++i) {
+ stateMap.createRegionNode(createRegionInfo(TABLE_NAME, i));
+ }
+ long et = System.currentTimeMillis();
+ LOG.info(String.format("PERF SingleThread: %s %s/sec",
+ StringUtils.humanTimeDiff(et - st),
+ StringUtils.humanSize(NRUNS / ((et - st) / 1000.0f))));
+ }
+
+ // ==========================================================================
+ // Server related
+ // ==========================================================================
+}