Put a fake allocation id on allocate stale primary command (#34140)

removes fake allocation id after recovery is done

Relates to #33432
This commit is contained in:
Vladimir Dolzhenko 2018-11-07 20:18:11 +01:00 committed by GitHub
parent 314b9ca44c
commit f789d49fb3
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8 changed files with 352 additions and 40 deletions

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@ -140,12 +140,19 @@ public class IndexRoutingTable extends AbstractDiffable<IndexRoutingTable> imple
} }
if (shardRouting.primary() && shardRouting.initializing() && if (shardRouting.primary() && shardRouting.initializing() &&
shardRouting.recoverySource().getType() == RecoverySource.Type.EXISTING_STORE && shardRouting.recoverySource().getType() == RecoverySource.Type.EXISTING_STORE) {
inSyncAllocationIds.contains(shardRouting.allocationId().getId()) == false) if (inSyncAllocationIds.contains(RecoverySource.ExistingStoreRecoverySource.FORCED_ALLOCATION_ID)) {
throw new IllegalStateException("a primary shard routing " + shardRouting + " is a primary that is recovering from " + if (inSyncAllocationIds.size() != 1) {
"a known allocation id but has no corresponding entry in the in-sync " + throw new IllegalStateException("a primary shard routing " + shardRouting
"allocation set " + inSyncAllocationIds); + " is a primary that is recovering from a stale primary has unexpected allocation ids in in-sync " +
"allocation set " + inSyncAllocationIds);
}
} else if (inSyncAllocationIds.contains(shardRouting.allocationId().getId()) == false) {
throw new IllegalStateException("a primary shard routing " + shardRouting
+ " is a primary that is recovering from a known allocation id but has no corresponding entry in the in-sync " +
"allocation set " + inSyncAllocationIds);
}
}
} }
} }
return true; return true;

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@ -132,6 +132,11 @@ public abstract class RecoverySource implements Writeable, ToXContentObject {
* Recovery from an existing on-disk store * Recovery from an existing on-disk store
*/ */
public static final class ExistingStoreRecoverySource extends RecoverySource { public static final class ExistingStoreRecoverySource extends RecoverySource {
/**
* Special allocation id that shard has during initialization on allocate_stale_primary
*/
public static final String FORCED_ALLOCATION_ID = "_forced_allocation_";
public static final ExistingStoreRecoverySource INSTANCE = new ExistingStoreRecoverySource(false); public static final ExistingStoreRecoverySource INSTANCE = new ExistingStoreRecoverySource(false);
public static final ExistingStoreRecoverySource FORCE_STALE_PRIMARY_INSTANCE = new ExistingStoreRecoverySource(true); public static final ExistingStoreRecoverySource FORCE_STALE_PRIMARY_INSTANCE = new ExistingStoreRecoverySource(true);

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@ -39,6 +39,7 @@ import java.util.HashMap;
import java.util.HashSet; import java.util.HashSet;
import java.util.List; import java.util.List;
import java.util.Map; import java.util.Map;
import java.util.Objects;
import java.util.Set; import java.util.Set;
import java.util.stream.Collectors; import java.util.stream.Collectors;
@ -68,7 +69,16 @@ public class IndexMetaDataUpdater extends RoutingChangesObserver.AbstractRouting
@Override @Override
public void shardStarted(ShardRouting initializingShard, ShardRouting startedShard) { public void shardStarted(ShardRouting initializingShard, ShardRouting startedShard) {
addAllocationId(startedShard); assert Objects.equals(initializingShard.allocationId().getId(), startedShard.allocationId().getId())
: "initializingShard.allocationId [" + initializingShard.allocationId().getId()
+ "] and startedShard.allocationId [" + startedShard.allocationId().getId() + "] have to have the same";
Updates updates = changes(startedShard.shardId());
updates.addedAllocationIds.add(startedShard.allocationId().getId());
if (startedShard.primary()
// started shard has to have null recoverySource; have to pick up recoverySource from its initializing state
&& (initializingShard.recoverySource() == RecoverySource.ExistingStoreRecoverySource.FORCE_STALE_PRIMARY_INSTANCE)) {
updates.removedAllocationIds.add(RecoverySource.ExistingStoreRecoverySource.FORCED_ALLOCATION_ID);
}
} }
@Override @Override
@ -144,7 +154,8 @@ public class IndexMetaDataUpdater extends RoutingChangesObserver.AbstractRouting
oldInSyncAllocationIds.contains(updates.initializedPrimary.allocationId().getId()) == false) { oldInSyncAllocationIds.contains(updates.initializedPrimary.allocationId().getId()) == false) {
// we're not reusing an existing in-sync allocation id to initialize a primary, which means that we're either force-allocating // we're not reusing an existing in-sync allocation id to initialize a primary, which means that we're either force-allocating
// an empty or a stale primary (see AllocateEmptyPrimaryAllocationCommand or AllocateStalePrimaryAllocationCommand). // an empty or a stale primary (see AllocateEmptyPrimaryAllocationCommand or AllocateStalePrimaryAllocationCommand).
RecoverySource.Type recoverySourceType = updates.initializedPrimary.recoverySource().getType(); RecoverySource recoverySource = updates.initializedPrimary.recoverySource();
RecoverySource.Type recoverySourceType = recoverySource.getType();
boolean emptyPrimary = recoverySourceType == RecoverySource.Type.EMPTY_STORE; boolean emptyPrimary = recoverySourceType == RecoverySource.Type.EMPTY_STORE;
assert updates.addedAllocationIds.isEmpty() : (emptyPrimary ? "empty" : "stale") + assert updates.addedAllocationIds.isEmpty() : (emptyPrimary ? "empty" : "stale") +
" primary is not force-initialized in same allocation round where shards are started"; " primary is not force-initialized in same allocation round where shards are started";
@ -156,9 +167,15 @@ public class IndexMetaDataUpdater extends RoutingChangesObserver.AbstractRouting
// forcing an empty primary resets the in-sync allocations to the empty set (ShardRouting.allocatedPostIndexCreate) // forcing an empty primary resets the in-sync allocations to the empty set (ShardRouting.allocatedPostIndexCreate)
indexMetaDataBuilder.putInSyncAllocationIds(shardId.id(), Collections.emptySet()); indexMetaDataBuilder.putInSyncAllocationIds(shardId.id(), Collections.emptySet());
} else { } else {
final String allocationId;
if (recoverySource == RecoverySource.ExistingStoreRecoverySource.FORCE_STALE_PRIMARY_INSTANCE) {
allocationId = RecoverySource.ExistingStoreRecoverySource.FORCED_ALLOCATION_ID;
} else {
assert recoverySource instanceof RecoverySource.SnapshotRecoverySource : recoverySource;
allocationId = updates.initializedPrimary.allocationId().getId();
}
// forcing a stale primary resets the in-sync allocations to the singleton set with the stale id // forcing a stale primary resets the in-sync allocations to the singleton set with the stale id
indexMetaDataBuilder.putInSyncAllocationIds(shardId.id(), indexMetaDataBuilder.putInSyncAllocationIds(shardId.id(), Collections.singleton(allocationId));
Collections.singleton(updates.initializedPrimary.allocationId().getId()));
} }
} else { } else {
// standard path for updating in-sync ids // standard path for updating in-sync ids
@ -166,6 +183,10 @@ public class IndexMetaDataUpdater extends RoutingChangesObserver.AbstractRouting
inSyncAllocationIds.addAll(updates.addedAllocationIds); inSyncAllocationIds.addAll(updates.addedAllocationIds);
inSyncAllocationIds.removeAll(updates.removedAllocationIds); inSyncAllocationIds.removeAll(updates.removedAllocationIds);
assert oldInSyncAllocationIds.contains(RecoverySource.ExistingStoreRecoverySource.FORCED_ALLOCATION_ID) == false
|| inSyncAllocationIds.contains(RecoverySource.ExistingStoreRecoverySource.FORCED_ALLOCATION_ID) == false :
"fake allocation id has to be removed, inSyncAllocationIds:" + inSyncAllocationIds;
// Prevent set of inSyncAllocationIds to grow unboundedly. This can happen for example if we don't write to a primary // Prevent set of inSyncAllocationIds to grow unboundedly. This can happen for example if we don't write to a primary
// but repeatedly shut down nodes that have active replicas. // but repeatedly shut down nodes that have active replicas.
// We use number_of_replicas + 1 (= possible active shard copies) to bound the inSyncAllocationIds set // We use number_of_replicas + 1 (= possible active shard copies) to bound the inSyncAllocationIds set
@ -287,13 +308,6 @@ public class IndexMetaDataUpdater extends RoutingChangesObserver.AbstractRouting
} }
} }
/**
* Add allocation id of this shard to the set of in-sync shard copies
*/
private void addAllocationId(ShardRouting shardRouting) {
changes(shardRouting.shardId()).addedAllocationIds.add(shardRouting.allocationId().getId());
}
/** /**
* Increase primary term for this shard id * Increase primary term for this shard id
*/ */

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@ -0,0 +1,238 @@
/*
* Licensed to Elasticsearch under one or more contributor
* license agreements. See the NOTICE file distributed with
* this work for additional information regarding copyright
* ownership. Elasticsearch 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.elasticsearch.cluster.routing;
import org.apache.lucene.store.SimpleFSDirectory;
import org.elasticsearch.action.admin.cluster.allocation.ClusterAllocationExplanation;
import org.elasticsearch.action.admin.indices.stats.ShardStats;
import org.elasticsearch.action.index.IndexRequestBuilder;
import org.elasticsearch.client.Requests;
import org.elasticsearch.cluster.ClusterState;
import org.elasticsearch.cluster.health.ClusterHealthStatus;
import org.elasticsearch.cluster.metadata.IndexMetaData;
import org.elasticsearch.cluster.routing.allocation.AllocationDecision;
import org.elasticsearch.cluster.routing.allocation.ShardAllocationDecision;
import org.elasticsearch.cluster.routing.allocation.command.AllocateStalePrimaryAllocationCommand;
import org.elasticsearch.common.settings.Settings;
import org.elasticsearch.index.IndexService;
import org.elasticsearch.index.IndexSettings;
import org.elasticsearch.index.MockEngineFactoryPlugin;
import org.elasticsearch.index.engine.Engine;
import org.elasticsearch.index.shard.RemoveCorruptedShardDataCommandIT;
import org.elasticsearch.index.shard.ShardId;
import org.elasticsearch.index.shard.ShardPath;
import org.elasticsearch.index.store.Store;
import org.elasticsearch.indices.IndicesService;
import org.elasticsearch.plugins.Plugin;
import org.elasticsearch.test.DummyShardLock;
import org.elasticsearch.test.ESIntegTestCase;
import org.elasticsearch.test.InternalSettingsPlugin;
import org.elasticsearch.test.InternalTestCluster;
import org.elasticsearch.test.transport.MockTransportService;
import java.io.IOException;
import java.nio.file.Path;
import java.util.Arrays;
import java.util.Collection;
import java.util.Set;
import java.util.concurrent.ExecutionException;
import java.util.stream.Collectors;
import static org.elasticsearch.index.query.QueryBuilders.matchAllQuery;
import static org.elasticsearch.test.hamcrest.ElasticsearchAssertions.assertHitCount;
import static org.hamcrest.Matchers.equalTo;
import static org.hamcrest.Matchers.greaterThan;
import static org.hamcrest.Matchers.hasSize;
import static org.hamcrest.Matchers.is;
import static org.hamcrest.Matchers.not;
@ESIntegTestCase.ClusterScope(scope = ESIntegTestCase.Scope.SUITE, numDataNodes = 0)
public class AllocationIdIT extends ESIntegTestCase {
@Override
protected Collection<Class<? extends Plugin>> nodePlugins() {
return Arrays.asList(MockTransportService.TestPlugin.class, MockEngineFactoryPlugin.class, InternalSettingsPlugin.class);
}
public void testFailedRecoveryOnAllocateStalePrimaryRequiresAnotherAllocateStalePrimary() throws Exception {
/*
* Allocation id is put on start of shard while historyUUID is adjusted after recovery is done.
*
* If during execution of AllocateStalePrimary a proper allocation id is stored in allocation id set and recovery is failed
* shard restart skips the stage where historyUUID is changed.
*
* That leads to situation where allocated stale primary and its replica belongs to the same historyUUID and
* replica will receive operations after local checkpoint while documents before checkpoints could be significant different.
*
* Therefore, on AllocateStalePrimary we put some fake allocation id (no real one could be generated like that)
* and any failure during recovery requires extra AllocateStalePrimary command to be executed.
*/
// initial set up
final String indexName = "index42";
final String master = internalCluster().startMasterOnlyNode();
String node1 = internalCluster().startNode();
createIndex(indexName, Settings.builder()
.put(IndexMetaData.SETTING_NUMBER_OF_SHARDS, 1)
.put(IndexMetaData.SETTING_NUMBER_OF_REPLICAS, 1)
.put(IndexSettings.INDEX_CHECK_ON_STARTUP.getKey(), "checksum").build());
final int numDocs = indexDocs(indexName, "foo", "bar");
final IndexSettings indexSettings = getIndexSettings(indexName, node1);
final Set<String> allocationIds = getAllocationIds(indexName);
final ShardId shardId = new ShardId(resolveIndex(indexName), 0);
final Path indexPath = getIndexPath(node1, shardId);
assertThat(allocationIds, hasSize(1));
final String historyUUID = historyUUID(node1, indexName);
String node2 = internalCluster().startNode();
ensureGreen(indexName);
internalCluster().assertSameDocIdsOnShards();
// initial set up is done
internalCluster().stopRandomNode(InternalTestCluster.nameFilter(node1));
// index more docs to node2 that marks node1 as stale
int numExtraDocs = indexDocs(indexName, "foo", "bar2");
assertHitCount(client(node2).prepareSearch(indexName).setQuery(matchAllQuery()).get(), numDocs + numExtraDocs);
internalCluster().stopRandomNode(InternalTestCluster.nameFilter(node2));
// create fake corrupted marker on node1
putFakeCorruptionMarker(indexSettings, shardId, indexPath);
// thanks to master node1 is out of sync
node1 = internalCluster().startNode();
// there is only _stale_ primary
checkNoValidShardCopy(indexName, shardId);
// allocate stale primary
client(node1).admin().cluster().prepareReroute()
.add(new AllocateStalePrimaryAllocationCommand(indexName, 0, node1, true))
.get();
// allocation fails due to corruption marker
assertBusy(() -> {
final ClusterState state = client().admin().cluster().prepareState().get().getState();
final ShardRouting shardRouting = state.routingTable().index(indexName).shard(shardId.id()).primaryShard();
assertThat(shardRouting.state(), equalTo(ShardRoutingState.UNASSIGNED));
assertThat(shardRouting.unassignedInfo().getReason(), equalTo(UnassignedInfo.Reason.ALLOCATION_FAILED));
});
try(Store store = new Store(shardId, indexSettings, new SimpleFSDirectory(indexPath), new DummyShardLock(shardId))) {
store.removeCorruptionMarker();
}
// index is red: no any shard is allocated (allocation id is a fake id that does not match to anything)
checkHealthStatus(indexName, ClusterHealthStatus.RED);
checkNoValidShardCopy(indexName, shardId);
internalCluster().restartNode(node1, InternalTestCluster.EMPTY_CALLBACK);
// index is still red due to mismatch of allocation id
checkHealthStatus(indexName, ClusterHealthStatus.RED);
checkNoValidShardCopy(indexName, shardId);
// no any valid shard is there; have to invoke AllocateStalePrimary again
client().admin().cluster().prepareReroute()
.add(new AllocateStalePrimaryAllocationCommand(indexName, 0, node1, true))
.get();
ensureYellow(indexName);
// bring node2 back
node2 = internalCluster().startNode();
ensureGreen(indexName);
assertThat(historyUUID(node1, indexName), not(equalTo(historyUUID)));
assertThat(historyUUID(node1, indexName), equalTo(historyUUID(node2, indexName)));
internalCluster().assertSameDocIdsOnShards();
}
public void checkHealthStatus(String indexName, ClusterHealthStatus healthStatus) {
final ClusterHealthStatus indexHealthStatus = client().admin().cluster()
.health(Requests.clusterHealthRequest(indexName)).actionGet().getStatus();
assertThat(indexHealthStatus, is(healthStatus));
}
private int indexDocs(String indexName, Object ... source) throws InterruptedException, ExecutionException {
// index some docs in several segments
int numDocs = 0;
for (int k = 0, attempts = randomIntBetween(5, 10); k < attempts; k++) {
final int numExtraDocs = between(10, 100);
IndexRequestBuilder[] builders = new IndexRequestBuilder[numExtraDocs];
for (int i = 0; i < builders.length; i++) {
builders[i] = client().prepareIndex(indexName, "type").setSource(source);
}
indexRandom(true, false, true, Arrays.asList(builders));
numDocs += numExtraDocs;
}
return numDocs;
}
private Path getIndexPath(String nodeName, ShardId shardId) {
final Set<Path> indexDirs = RemoveCorruptedShardDataCommandIT.getDirs(nodeName, shardId, ShardPath.INDEX_FOLDER_NAME);
assertThat(indexDirs, hasSize(1));
return indexDirs.iterator().next();
}
private Set<String> getAllocationIds(String indexName) {
final ClusterState state = client().admin().cluster().prepareState().get().getState();
final Set<String> allocationIds = state.metaData().index(indexName).inSyncAllocationIds(0);
return allocationIds;
}
private IndexSettings getIndexSettings(String indexName, String nodeName) {
final IndicesService indicesService = internalCluster().getInstance(IndicesService.class, nodeName);
final IndexService indexService = indicesService.indexService(resolveIndex(indexName));
return indexService.getIndexSettings();
}
private String historyUUID(String node, String indexName) {
final ShardStats[] shards = client(node).admin().indices().prepareStats(indexName).clear().get().getShards();
assertThat(shards.length, greaterThan(0));
final Set<String> historyUUIDs = Arrays.stream(shards)
.map(shard -> shard.getCommitStats().getUserData().get(Engine.HISTORY_UUID_KEY))
.collect(Collectors.toSet());
assertThat(historyUUIDs, hasSize(1));
return historyUUIDs.iterator().next();
}
private void putFakeCorruptionMarker(IndexSettings indexSettings, ShardId shardId, Path indexPath) throws IOException {
try(Store store = new Store(shardId, indexSettings, new SimpleFSDirectory(indexPath), new DummyShardLock(shardId))) {
store.markStoreCorrupted(new IOException("fake ioexception"));
}
}
private void checkNoValidShardCopy(String indexName, ShardId shardId) throws Exception {
final ClusterAllocationExplanation explanation =
client().admin().cluster().prepareAllocationExplain()
.setIndex(indexName).setShard(shardId.id()).setPrimary(true)
.get().getExplanation();
final ShardAllocationDecision shardAllocationDecision = explanation.getShardAllocationDecision();
assertThat(shardAllocationDecision.isDecisionTaken(), equalTo(true));
assertThat(shardAllocationDecision.getAllocateDecision().getAllocationDecision(),
equalTo(AllocationDecision.NO_VALID_SHARD_COPY));
}
}

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@ -214,6 +214,13 @@ public class PrimaryAllocationIT extends ESIntegTestCase {
} }
rerouteBuilder.get(); rerouteBuilder.get();
ClusterState state = client().admin().cluster().prepareState().get().getState();
Set<String> expectedAllocationIds = useStaleReplica
? Collections.singleton(RecoverySource.ExistingStoreRecoverySource.FORCED_ALLOCATION_ID)
: Collections.emptySet();
assertEquals(expectedAllocationIds, state.metaData().index(idxName).inSyncAllocationIds(0));
logger.info("--> check that the stale primary shard gets allocated and that documents are available"); logger.info("--> check that the stale primary shard gets allocated and that documents are available");
ensureYellow(idxName); ensureYellow(idxName);
@ -228,7 +235,8 @@ public class PrimaryAllocationIT extends ESIntegTestCase {
assertHitCount(client().prepareSearch(idxName).setSize(0).setQuery(matchAllQuery()).get(), useStaleReplica ? 1L : 0L); assertHitCount(client().prepareSearch(idxName).setSize(0).setQuery(matchAllQuery()).get(), useStaleReplica ? 1L : 0L);
// allocation id of old primary was cleaned from the in-sync set // allocation id of old primary was cleaned from the in-sync set
ClusterState state = client().admin().cluster().prepareState().get().getState(); state = client().admin().cluster().prepareState().get().getState();
assertEquals(Collections.singleton(state.routingTable().index(idxName).shard(0).primary.allocationId().getId()), assertEquals(Collections.singleton(state.routingTable().index(idxName).shard(0).primary.allocationId().getId()),
state.metaData().index(idxName).inSyncAllocationIds(0)); state.metaData().index(idxName).inSyncAllocationIds(0));

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@ -23,14 +23,18 @@ import org.apache.logging.log4j.LogManager;
import org.apache.logging.log4j.Logger; import org.apache.logging.log4j.Logger;
import org.elasticsearch.Version; import org.elasticsearch.Version;
import org.elasticsearch.cluster.ClusterInfo; import org.elasticsearch.cluster.ClusterInfo;
import org.elasticsearch.cluster.ClusterName;
import org.elasticsearch.cluster.ClusterState; import org.elasticsearch.cluster.ClusterState;
import org.elasticsearch.cluster.ESAllocationTestCase; import org.elasticsearch.cluster.ESAllocationTestCase;
import org.elasticsearch.cluster.metadata.IndexMetaData; import org.elasticsearch.cluster.metadata.IndexMetaData;
import org.elasticsearch.cluster.metadata.MetaData; import org.elasticsearch.cluster.metadata.MetaData;
import org.elasticsearch.cluster.node.DiscoveryNode; import org.elasticsearch.cluster.node.DiscoveryNode;
import org.elasticsearch.cluster.node.DiscoveryNodes; import org.elasticsearch.cluster.node.DiscoveryNodes;
import org.elasticsearch.cluster.routing.RecoverySource;
import org.elasticsearch.cluster.routing.RoutingNode;
import org.elasticsearch.cluster.routing.RoutingNodes; import org.elasticsearch.cluster.routing.RoutingNodes;
import org.elasticsearch.cluster.routing.RoutingTable; import org.elasticsearch.cluster.routing.RoutingTable;
import org.elasticsearch.cluster.routing.ShardRouting;
import org.elasticsearch.cluster.routing.ShardRoutingState; import org.elasticsearch.cluster.routing.ShardRoutingState;
import org.elasticsearch.cluster.routing.allocation.command.AbstractAllocateAllocationCommand; import org.elasticsearch.cluster.routing.allocation.command.AbstractAllocateAllocationCommand;
import org.elasticsearch.cluster.routing.allocation.command.AllocateEmptyPrimaryAllocationCommand; import org.elasticsearch.cluster.routing.allocation.command.AllocateEmptyPrimaryAllocationCommand;
@ -58,14 +62,18 @@ import org.elasticsearch.index.shard.ShardNotFoundException;
import java.util.Collections; import java.util.Collections;
import java.util.EnumSet; import java.util.EnumSet;
import java.util.HashSet; import java.util.HashSet;
import java.util.List;
import java.util.Set;
import static java.util.Collections.emptyMap; import static java.util.Collections.emptyMap;
import static java.util.Collections.singleton; import static java.util.Collections.singleton;
import static org.elasticsearch.cluster.routing.ShardRoutingState.INITIALIZING; import static org.elasticsearch.cluster.routing.ShardRoutingState.INITIALIZING;
import static org.elasticsearch.cluster.routing.ShardRoutingState.RELOCATING; import static org.elasticsearch.cluster.routing.ShardRoutingState.RELOCATING;
import static org.elasticsearch.cluster.routing.ShardRoutingState.STARTED; import static org.elasticsearch.cluster.routing.ShardRoutingState.STARTED;
import static org.elasticsearch.cluster.routing.ShardRoutingState.UNASSIGNED;
import static org.hamcrest.Matchers.containsString; import static org.hamcrest.Matchers.containsString;
import static org.hamcrest.Matchers.equalTo; import static org.hamcrest.Matchers.equalTo;
import static org.hamcrest.Matchers.hasSize;
import static org.hamcrest.Matchers.not; import static org.hamcrest.Matchers.not;
import static org.hamcrest.Matchers.nullValue; import static org.hamcrest.Matchers.nullValue;
@ -259,6 +267,56 @@ public class AllocationCommandsTests extends ESAllocationTestCase {
} }
} }
public void testAllocateStalePrimaryCommand() {
AllocationService allocation = createAllocationService(Settings.builder()
.put(EnableAllocationDecider.CLUSTER_ROUTING_ALLOCATION_ENABLE_SETTING.getKey(), "none")
.put(EnableAllocationDecider.CLUSTER_ROUTING_REBALANCE_ENABLE_SETTING.getKey(), "none")
.build());
final String index = "test";
logger.info("--> building initial routing table");
MetaData metaData = MetaData.builder()
.put(IndexMetaData.builder(index).settings(settings(Version.CURRENT)).numberOfShards(1).numberOfReplicas(1)
.putInSyncAllocationIds(0, Collections.singleton("asdf")).putInSyncAllocationIds(1, Collections.singleton("qwertz")))
.build();
// shard routing is added as "from recovery" instead of "new index creation" so that we can test below that allocating an empty
// primary with accept_data_loss flag set to false fails
RoutingTable routingTable = RoutingTable.builder()
.addAsRecovery(metaData.index(index))
.build();
ClusterState clusterState = ClusterState.builder(ClusterName.CLUSTER_NAME_SETTING.getDefault(Settings.EMPTY))
.metaData(metaData).routingTable(routingTable).build();
final String node1 = "node1";
final String node2 = "node2";
clusterState = ClusterState.builder(clusterState).nodes(DiscoveryNodes.builder()
.add(newNode(node1))
.add(newNode(node2))
).build();
clusterState = allocation.reroute(clusterState, "reroute");
// mark all shards as stale
final List<ShardRouting> shardRoutings = clusterState.getRoutingNodes().shardsWithState(UNASSIGNED);
assertThat(shardRoutings, hasSize(2));
logger.info("--> allocating empty primary with acceptDataLoss flag set to true");
clusterState = allocation.reroute(clusterState,
new AllocationCommands(new AllocateStalePrimaryAllocationCommand(index, 0, node1, true)), false, false).getClusterState();
RoutingNode routingNode1 = clusterState.getRoutingNodes().node(node1);
assertThat(routingNode1.size(), equalTo(1));
assertThat(routingNode1.shardsWithState(INITIALIZING).size(), equalTo(1));
Set<String> inSyncAllocationIds = clusterState.metaData().index(index).inSyncAllocationIds(0);
assertThat(inSyncAllocationIds, equalTo(Collections.singleton(RecoverySource.ExistingStoreRecoverySource.FORCED_ALLOCATION_ID)));
clusterState = allocation.applyStartedShards(clusterState, clusterState.getRoutingNodes().shardsWithState(INITIALIZING));
routingNode1 = clusterState.getRoutingNodes().node(node1);
assertThat(routingNode1.size(), equalTo(1));
assertThat(routingNode1.shardsWithState(STARTED).size(), equalTo(1));
inSyncAllocationIds = clusterState.metaData().index(index).inSyncAllocationIds(0);
assertThat(inSyncAllocationIds, hasSize(1));
assertThat(inSyncAllocationIds, not(Collections.singleton(RecoverySource.ExistingStoreRecoverySource.FORCED_ALLOCATION_ID)));
}
public void testCancelCommand() { public void testCancelCommand() {
AllocationService allocation = createAllocationService(Settings.builder() AllocationService allocation = createAllocationService(Settings.builder()
.put(EnableAllocationDecider.CLUSTER_ROUTING_ALLOCATION_ENABLE_SETTING.getKey(), "none") .put(EnableAllocationDecider.CLUSTER_ROUTING_ALLOCATION_ENABLE_SETTING.getKey(), "none")

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@ -42,12 +42,9 @@ import org.elasticsearch.cluster.routing.allocation.allocator.ShardsAllocator;
import org.elasticsearch.cluster.routing.allocation.decider.ClusterRebalanceAllocationDecider; import org.elasticsearch.cluster.routing.allocation.decider.ClusterRebalanceAllocationDecider;
import org.elasticsearch.common.settings.ClusterSettings; import org.elasticsearch.common.settings.ClusterSettings;
import org.elasticsearch.common.settings.Settings; import org.elasticsearch.common.settings.Settings;
import org.elasticsearch.gateway.GatewayAllocator;
import org.elasticsearch.test.gateway.TestGatewayAllocator; import org.elasticsearch.test.gateway.TestGatewayAllocator;
import org.hamcrest.Matchers; import org.hamcrest.Matchers;
import java.util.List;
import static org.elasticsearch.cluster.routing.ShardRoutingState.INITIALIZING; import static org.elasticsearch.cluster.routing.ShardRoutingState.INITIALIZING;
import static org.elasticsearch.cluster.routing.ShardRoutingState.STARTED; import static org.elasticsearch.cluster.routing.ShardRoutingState.STARTED;
@ -73,7 +70,7 @@ public class BalanceConfigurationTests extends ESAllocationTestCase {
settings.put(BalancedShardsAllocator.SHARD_BALANCE_FACTOR_SETTING.getKey(), replicaBalance); settings.put(BalancedShardsAllocator.SHARD_BALANCE_FACTOR_SETTING.getKey(), replicaBalance);
settings.put(BalancedShardsAllocator.THRESHOLD_SETTING.getKey(), balanceTreshold); settings.put(BalancedShardsAllocator.THRESHOLD_SETTING.getKey(), balanceTreshold);
AllocationService strategy = createAllocationService(settings.build(), new NoopGatewayAllocator()); AllocationService strategy = createAllocationService(settings.build(), new TestGatewayAllocator());
ClusterState clusterState = initCluster(strategy); ClusterState clusterState = initCluster(strategy);
assertIndexBalance(clusterState.getRoutingTable(), clusterState.getRoutingNodes(), numberOfNodes, numberOfIndices, assertIndexBalance(clusterState.getRoutingTable(), clusterState.getRoutingNodes(), numberOfNodes, numberOfIndices,
@ -101,7 +98,7 @@ public class BalanceConfigurationTests extends ESAllocationTestCase {
settings.put(BalancedShardsAllocator.SHARD_BALANCE_FACTOR_SETTING.getKey(), replicaBalance); settings.put(BalancedShardsAllocator.SHARD_BALANCE_FACTOR_SETTING.getKey(), replicaBalance);
settings.put(BalancedShardsAllocator.THRESHOLD_SETTING.getKey(), balanceTreshold); settings.put(BalancedShardsAllocator.THRESHOLD_SETTING.getKey(), balanceTreshold);
AllocationService strategy = createAllocationService(settings.build(), new NoopGatewayAllocator()); AllocationService strategy = createAllocationService(settings.build(), new TestGatewayAllocator());
ClusterState clusterState = initCluster(strategy); ClusterState clusterState = initCluster(strategy);
assertReplicaBalance(logger, clusterState.getRoutingNodes(), numberOfNodes, numberOfIndices, assertReplicaBalance(logger, clusterState.getRoutingNodes(), numberOfNodes, numberOfIndices,
@ -366,7 +363,7 @@ public class BalanceConfigurationTests extends ESAllocationTestCase {
assertThat(shardRouting.state(), Matchers.equalTo(ShardRoutingState.INITIALIZING)); assertThat(shardRouting.state(), Matchers.equalTo(ShardRoutingState.INITIALIZING));
} }
} }
strategy = createAllocationService(settings.build(), new NoopGatewayAllocator()); strategy = createAllocationService(settings.build(), new TestGatewayAllocator());
logger.info("use the new allocator and check if it moves shards"); logger.info("use the new allocator and check if it moves shards");
routingNodes = clusterState.getRoutingNodes(); routingNodes = clusterState.getRoutingNodes();
@ -402,19 +399,4 @@ public class BalanceConfigurationTests extends ESAllocationTestCase {
} }
} }
private class NoopGatewayAllocator extends GatewayAllocator {
@Override
public void applyStartedShards(RoutingAllocation allocation, List<ShardRouting> startedShards) {
// noop
}
@Override
public void applyFailedShards(RoutingAllocation allocation, List<FailedShard> failedShards) {
// noop
}
@Override
public void allocateUnassigned(RoutingAllocation allocation) {
// noop
}
}
} }

View File

@ -610,7 +610,7 @@ public class RemoveCorruptedShardDataCommandIT extends ESIntegTestCase {
return getDirs(nodeId, shardId, dirSuffix); return getDirs(nodeId, shardId, dirSuffix);
} }
private Set<Path> getDirs(String nodeId, ShardId shardId, String dirSuffix) { public static Set<Path> getDirs(String nodeId, ShardId shardId, String dirSuffix) {
final NodesStatsResponse nodeStatses = client().admin().cluster().prepareNodesStats(nodeId).setFs(true).get(); final NodesStatsResponse nodeStatses = client().admin().cluster().prepareNodesStats(nodeId).setFs(true).get();
final Set<Path> translogDirs = new TreeSet<>(); final Set<Path> translogDirs = new TreeSet<>();
final NodeStats nodeStats = nodeStatses.getNodes().get(0); final NodeStats nodeStats = nodeStatses.getNodes().get(0);