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HBASE-28582 ModifyTableProcedure should not reset TRSP on region node…
… when closing unused region replicas (#5903) Signed-off-by: Viraj Jasani <vjasani@apache.org> (cherry picked from commit c4a7606)
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159 changes: 159 additions & 0 deletions
159
...ain/java/org/apache/hadoop/hbase/master/procedure/CloseExcessRegionReplicasProcedure.java
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/* | ||
* 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.procedure; | ||
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import java.io.IOException; | ||
import org.apache.commons.lang3.mutable.MutableBoolean; | ||
import org.apache.hadoop.hbase.TableName; | ||
import org.apache.hadoop.hbase.procedure2.ProcedureStateSerializer; | ||
import org.apache.hadoop.hbase.procedure2.ProcedureSuspendedException; | ||
import org.apache.hadoop.hbase.procedure2.ProcedureUtil; | ||
import org.apache.hadoop.hbase.procedure2.ProcedureYieldException; | ||
import org.apache.hadoop.hbase.util.RetryCounter; | ||
import org.apache.yetus.audience.InterfaceAudience; | ||
import org.slf4j.Logger; | ||
import org.slf4j.LoggerFactory; | ||
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import org.apache.hadoop.hbase.shaded.protobuf.ProtobufUtil; | ||
import org.apache.hadoop.hbase.shaded.protobuf.generated.MasterProcedureProtos.CloseExcessRegionReplicasProcedureState; | ||
import org.apache.hadoop.hbase.shaded.protobuf.generated.MasterProcedureProtos.CloseExcessRegionReplicasProcedureStateData; | ||
import org.apache.hadoop.hbase.shaded.protobuf.generated.ProcedureProtos; | ||
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/** | ||
* Procedure for close excess region replicas. | ||
*/ | ||
@InterfaceAudience.Private | ||
public class CloseExcessRegionReplicasProcedure | ||
extends AbstractStateMachineTableProcedure<CloseExcessRegionReplicasProcedureState> { | ||
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private static final Logger LOG = | ||
LoggerFactory.getLogger(CloseExcessRegionReplicasProcedure.class); | ||
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private TableName tableName; | ||
private int newReplicaCount; | ||
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private RetryCounter retryCounter; | ||
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public CloseExcessRegionReplicasProcedure() { | ||
} | ||
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public CloseExcessRegionReplicasProcedure(TableName tableName, int newReplicaCount) { | ||
this.tableName = tableName; | ||
this.newReplicaCount = newReplicaCount; | ||
} | ||
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@Override | ||
public TableName getTableName() { | ||
return tableName; | ||
} | ||
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@Override | ||
public TableOperationType getTableOperationType() { | ||
return TableOperationType.REGION_EDIT; | ||
} | ||
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@Override | ||
protected Flow executeFromState(MasterProcedureEnv env, | ||
CloseExcessRegionReplicasProcedureState state) | ||
throws ProcedureSuspendedException, ProcedureYieldException, InterruptedException { | ||
LOG.trace("{} execute state={}", this, state); | ||
switch (state) { | ||
case CLOSE_EXCESS_REGION_REPLICAS_SCHEDULE: | ||
MutableBoolean submitted = new MutableBoolean(false); | ||
int inTransitionCount = env.getAssignmentManager() | ||
.submitUnassignProcedureForClosingExcessRegionReplicas(tableName, newReplicaCount, p -> { | ||
submitted.setTrue(); | ||
addChildProcedure(p); | ||
}); | ||
if (inTransitionCount > 0 && submitted.isFalse()) { | ||
// we haven't scheduled any unassign procedures and there are still regions in | ||
// transition, sleep for a while and try again | ||
if (retryCounter == null) { | ||
retryCounter = ProcedureUtil.createRetryCounter(env.getMasterConfiguration()); | ||
} | ||
long backoffMillis = retryCounter.getBackoffTimeAndIncrementAttempts(); | ||
LOG.info( | ||
"There are still {} region(s) in transition for table {} when closing excess" | ||
+ " region replicas, suspend {}secs and try again later", | ||
inTransitionCount, tableName, backoffMillis / 1000); | ||
suspend((int) backoffMillis, true); | ||
} | ||
setNextState(CloseExcessRegionReplicasProcedureState.CLOSE_EXCESS_REGION_REPLICAS_CONFIRM); | ||
return Flow.HAS_MORE_STATE; | ||
case CLOSE_EXCESS_REGION_REPLICAS_CONFIRM: | ||
int unclosedCount = env.getAssignmentManager() | ||
.numberOfUnclosedExcessRegionReplicas(tableName, newReplicaCount); | ||
if (unclosedCount > 0) { | ||
LOG.info("There are still {} unclosed region(s) for table {} when closing excess" | ||
+ " region replicas, continue..."); | ||
setNextState( | ||
CloseExcessRegionReplicasProcedureState.CLOSE_EXCESS_REGION_REPLICAS_SCHEDULE); | ||
return Flow.HAS_MORE_STATE; | ||
} else { | ||
return Flow.NO_MORE_STATE; | ||
} | ||
default: | ||
throw new UnsupportedOperationException("unhandled state=" + state); | ||
} | ||
} | ||
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@Override | ||
protected synchronized boolean setTimeoutFailure(MasterProcedureEnv env) { | ||
setState(ProcedureProtos.ProcedureState.RUNNABLE); | ||
env.getProcedureScheduler().addFront(this); | ||
return false; | ||
} | ||
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@Override | ||
protected void rollbackState(MasterProcedureEnv env, | ||
CloseExcessRegionReplicasProcedureState state) throws IOException, InterruptedException { | ||
throw new UnsupportedOperationException(); | ||
} | ||
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@Override | ||
protected CloseExcessRegionReplicasProcedureState getState(int stateId) { | ||
return CloseExcessRegionReplicasProcedureState.forNumber(stateId); | ||
} | ||
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@Override | ||
protected int getStateId(CloseExcessRegionReplicasProcedureState state) { | ||
return state.getNumber(); | ||
} | ||
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@Override | ||
protected CloseExcessRegionReplicasProcedureState getInitialState() { | ||
return CloseExcessRegionReplicasProcedureState.CLOSE_EXCESS_REGION_REPLICAS_SCHEDULE; | ||
} | ||
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@Override | ||
protected void serializeStateData(ProcedureStateSerializer serializer) throws IOException { | ||
CloseExcessRegionReplicasProcedureStateData data = CloseExcessRegionReplicasProcedureStateData | ||
.newBuilder().setTableName(ProtobufUtil.toProtoTableName(tableName)) | ||
.setNewReplicaCount(newReplicaCount).build(); | ||
serializer.serialize(data); | ||
} | ||
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@Override | ||
protected void deserializeStateData(ProcedureStateSerializer serializer) throws IOException { | ||
CloseExcessRegionReplicasProcedureStateData data = | ||
serializer.deserialize(CloseExcessRegionReplicasProcedureStateData.class); | ||
tableName = ProtobufUtil.toTableName(data.getTableName()); | ||
newReplicaCount = data.getNewReplicaCount(); | ||
} | ||
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} |
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107 changes: 107 additions & 0 deletions
107
...org/apache/hadoop/hbase/master/assignment/TestReduceExcessRegionReplicasBlockedByRIT.java
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/* | ||
* 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; | ||
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import static org.junit.Assert.assertEquals; | ||
import static org.junit.Assert.assertFalse; | ||
import static org.junit.Assert.assertTrue; | ||
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import java.util.concurrent.CompletableFuture; | ||
import org.apache.hadoop.hbase.HBaseClassTestRule; | ||
import org.apache.hadoop.hbase.HBaseTestingUtil; | ||
import org.apache.hadoop.hbase.TableName; | ||
import org.apache.hadoop.hbase.client.ColumnFamilyDescriptorBuilder; | ||
import org.apache.hadoop.hbase.client.TableDescriptor; | ||
import org.apache.hadoop.hbase.client.TableDescriptorBuilder; | ||
import org.apache.hadoop.hbase.master.RegionState; | ||
import org.apache.hadoop.hbase.master.procedure.CloseExcessRegionReplicasProcedure; | ||
import org.apache.hadoop.hbase.master.procedure.MasterProcedureEnv; | ||
import org.apache.hadoop.hbase.procedure2.ProcedureExecutor; | ||
import org.apache.hadoop.hbase.testclassification.MasterTests; | ||
import org.apache.hadoop.hbase.testclassification.MediumTests; | ||
import org.junit.AfterClass; | ||
import org.junit.BeforeClass; | ||
import org.junit.ClassRule; | ||
import org.junit.Test; | ||
import org.junit.experimental.categories.Category; | ||
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/** | ||
* A test to make sure that we will wait for RIT to finish while closing excess region replicas. See | ||
* HBASE-28582 and related issues for more details. | ||
*/ | ||
@Category({ MasterTests.class, MediumTests.class }) | ||
public class TestReduceExcessRegionReplicasBlockedByRIT { | ||
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@ClassRule | ||
public static final HBaseClassTestRule CLASS_RULE = | ||
HBaseClassTestRule.forClass(TestReduceExcessRegionReplicasBlockedByRIT.class); | ||
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private static final HBaseTestingUtil UTIL = new HBaseTestingUtil(); | ||
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private static TableDescriptor TD = | ||
TableDescriptorBuilder.newBuilder(TableName.valueOf("CloseExcessRegionReplicas")) | ||
.setColumnFamily(ColumnFamilyDescriptorBuilder.of("family")).setRegionReplication(4).build(); | ||
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@BeforeClass | ||
public static void setUp() throws Exception { | ||
UTIL.startMiniCluster(1); | ||
UTIL.getAdmin().createTable(TD); | ||
UTIL.waitTableAvailable(TD.getTableName()); | ||
UTIL.waitUntilNoRegionsInTransition(); | ||
} | ||
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@AfterClass | ||
public static void tearDown() throws Exception { | ||
UTIL.shutdownMiniCluster(); | ||
} | ||
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@Test | ||
public void testRIT() throws Exception { | ||
RegionStateNode rsn = UTIL.getMiniHBaseCluster().getMaster().getAssignmentManager() | ||
.getRegionStates().getTableRegionStateNodes(TD.getTableName()).stream() | ||
.filter(rn -> rn.getRegionInfo().getReplicaId() > 1).findAny().get(); | ||
// fake a TRSP to block the CloseExcessRegionReplicasProcedure | ||
TransitRegionStateProcedure trsp = new TransitRegionStateProcedure(); | ||
rsn.setProcedure(trsp); | ||
TableDescriptor newTd = TableDescriptorBuilder.newBuilder(TD).setRegionReplication(2).build(); | ||
CompletableFuture<Void> future = UTIL.getAsyncConnection().getAdmin().modifyTable(newTd); | ||
ProcedureExecutor<MasterProcedureEnv> procExec = | ||
UTIL.getMiniHBaseCluster().getMaster().getMasterProcedureExecutor(); | ||
UTIL.waitFor(5000, () -> procExec.getProcedures().stream() | ||
.anyMatch(p -> p instanceof CloseExcessRegionReplicasProcedure && !p.isFinished())); | ||
CloseExcessRegionReplicasProcedure proc = | ||
procExec.getProcedures().stream().filter(p -> p instanceof CloseExcessRegionReplicasProcedure) | ||
.map(p -> (CloseExcessRegionReplicasProcedure) p).findFirst().get(); | ||
// make sure that the procedure can not finish | ||
for (int i = 0; i < 5; i++) { | ||
Thread.sleep(3000); | ||
assertFalse(proc.isFinished()); | ||
} | ||
assertTrue(rsn.isInState(RegionState.State.OPEN)); | ||
// unset the procedure, so we could make progress on CloseExcessRegionReplicasProcedure | ||
rsn.unsetProcedure(trsp); | ||
UTIL.waitFor(60000, () -> proc.isFinished()); | ||
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future.get(); | ||
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// the region should be in CLOSED state, and should have been removed from AM | ||
assertTrue(rsn.isInState(RegionState.State.CLOSED)); | ||
// only 2 replicas now | ||
assertEquals(2, UTIL.getMiniHBaseCluster().getRegions(TD.getTableName()).size()); | ||
} | ||
} |
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