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/*
* 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.indices.flush;
import org.elasticsearch.action.support.PlainActionFuture;
import org.elasticsearch.cluster.ClusterState;
import org.elasticsearch.cluster.routing.IndexShardRoutingTable;
import org.elasticsearch.cluster.routing.ShardRouting;
import org.elasticsearch.cluster.service.ClusterService;
import org.elasticsearch.common.UUIDs;
import org.elasticsearch.common.lease.Releasable;
import org.elasticsearch.common.xcontent.XContentType;
import org.elasticsearch.index.IndexService;
import org.elasticsearch.index.engine.Engine;
import org.elasticsearch.index.shard.IndexShard;
import org.elasticsearch.index.shard.ShardId;
import org.elasticsearch.index.shard.ShardNotFoundException;
import org.elasticsearch.indices.IndicesService;
import org.elasticsearch.test.ESSingleNodeTestCase;
import org.elasticsearch.threadpool.ThreadPool;
import java.util.List;
import java.util.Map;
import java.util.concurrent.ExecutionException;
public class SyncedFlushSingleNodeTests extends ESSingleNodeTestCase {
public void testModificationPreventsFlushing() throws InterruptedException {
createIndex("test");
client().prepareIndex("test", "test", "1").setSource("{}", XContentType.JSON).get();
IndexService test = getInstanceFromNode(IndicesService.class).indexService(resolveIndex("test"));
IndexShard shard = test.getShardOrNull(0);
SyncedFlushService flushService = getInstanceFromNode(SyncedFlushService.class);
final ShardId shardId = shard.shardId();
final ClusterState state = getInstanceFromNode(ClusterService.class).state();
final IndexShardRoutingTable shardRoutingTable = flushService.getShardRoutingTable(shardId, state);
final List<ShardRouting> activeShards = shardRoutingTable.activeShards();
assertEquals("exactly one active shard", 1, activeShards.size());
Map<String, Engine.CommitId> commitIds = SyncedFlushUtil.sendPreSyncRequests(flushService, activeShards, state, shardId);
assertEquals("exactly one commit id", 1, commitIds.size());
client().prepareIndex("test", "test", "2").setSource("{}", XContentType.JSON).get();
String syncId = UUIDs.base64UUID();
SyncedFlushUtil.LatchedListener<ShardsSyncedFlushResult> listener = new SyncedFlushUtil.LatchedListener<>();
flushService.sendSyncRequests(syncId, activeShards, state, commitIds, shardId, shardRoutingTable.size(), listener);
listener.latch.await();
assertNull(listener.error);
ShardsSyncedFlushResult syncedFlushResult = listener.result;
assertNotNull(syncedFlushResult);
assertEquals(0, syncedFlushResult.successfulShards());
assertEquals(1, syncedFlushResult.totalShards());
assertEquals(syncId, syncedFlushResult.syncId());
assertNotNull(syncedFlushResult.shardResponses().get(activeShards.get(0)));
assertFalse(syncedFlushResult.shardResponses().get(activeShards.get(0)).success());
assertEquals("pending operations", syncedFlushResult.shardResponses().get(activeShards.get(0)).failureReason());
SyncedFlushUtil.sendPreSyncRequests(flushService, activeShards, state, shardId); // pull another commit and make sure we can't sync-flush with the old one
listener = new SyncedFlushUtil.LatchedListener();
flushService.sendSyncRequests(syncId, activeShards, state, commitIds, shardId, shardRoutingTable.size(), listener);
listener.latch.await();
assertNull(listener.error);
syncedFlushResult = listener.result;
assertNotNull(syncedFlushResult);
assertEquals(0, syncedFlushResult.successfulShards());
assertEquals(1, syncedFlushResult.totalShards());
assertEquals(syncId, syncedFlushResult.syncId());
assertNotNull(syncedFlushResult.shardResponses().get(activeShards.get(0)));
assertFalse(syncedFlushResult.shardResponses().get(activeShards.get(0)).success());
assertEquals("commit has changed", syncedFlushResult.shardResponses().get(activeShards.get(0)).failureReason());
}
public void testSingleShardSuccess() throws InterruptedException {
createIndex("test");
client().prepareIndex("test", "test", "1").setSource("{}", XContentType.JSON).get();
IndexService test = getInstanceFromNode(IndicesService.class).indexService(resolveIndex("test"));
IndexShard shard = test.getShardOrNull(0);
SyncedFlushService flushService = getInstanceFromNode(SyncedFlushService.class);
final ShardId shardId = shard.shardId();
SyncedFlushUtil.LatchedListener<ShardsSyncedFlushResult> listener = new SyncedFlushUtil.LatchedListener();
flushService.attemptSyncedFlush(shardId, listener);
listener.latch.await();
assertNull(listener.error);
ShardsSyncedFlushResult syncedFlushResult = listener.result;
assertNotNull(syncedFlushResult);
assertEquals(1, syncedFlushResult.successfulShards());
assertEquals(1, syncedFlushResult.totalShards());
SyncedFlushService.ShardSyncedFlushResponse response = syncedFlushResult.shardResponses().values().iterator().next();
assertTrue(response.success());
}
public void testSyncFailsIfOperationIsInFlight() throws InterruptedException, ExecutionException {
createIndex("test");
client().prepareIndex("test", "test", "1").setSource("{}", XContentType.JSON).get();
IndexService test = getInstanceFromNode(IndicesService.class).indexService(resolveIndex("test"));
IndexShard shard = test.getShardOrNull(0);
SyncedFlushService flushService = getInstanceFromNode(SyncedFlushService.class);
final ShardId shardId = shard.shardId();
PlainActionFuture<Releasable> fut = new PlainActionFuture<>();
shard.acquirePrimaryOperationLock(fut, ThreadPool.Names.INDEX);
try (Releasable operationLock = fut.get()) {
SyncedFlushUtil.LatchedListener<ShardsSyncedFlushResult> listener = new SyncedFlushUtil.LatchedListener<>();
flushService.attemptSyncedFlush(shardId, listener);
listener.latch.await();
assertNull(listener.error);
ShardsSyncedFlushResult syncedFlushResult = listener.result;
assertNotNull(syncedFlushResult);
assertEquals(0, syncedFlushResult.successfulShards());
assertNotEquals(0, syncedFlushResult.totalShards());
assertEquals("[1] ongoing operations on primary", syncedFlushResult.failureReason());
}
}
public void testSyncFailsOnIndexClosedOrMissing() throws InterruptedException {
createIndex("test");
IndexService test = getInstanceFromNode(IndicesService.class).indexService(resolveIndex("test"));
IndexShard shard = test.getShardOrNull(0);
SyncedFlushService flushService = getInstanceFromNode(SyncedFlushService.class);
SyncedFlushUtil.LatchedListener listener = new SyncedFlushUtil.LatchedListener();
flushService.attemptSyncedFlush(new ShardId("test", "_na_", 1), listener);
listener.latch.await();
assertNotNull(listener.error);
assertNull(listener.result);
assertEquals(ShardNotFoundException.class, listener.error.getClass());
assertEquals("no such shard", listener.error.getMessage());
final ShardId shardId = shard.shardId();
client().admin().indices().prepareClose("test").get();
listener = new SyncedFlushUtil.LatchedListener();
flushService.attemptSyncedFlush(shardId, listener);
listener.latch.await();
assertNotNull(listener.error);
assertNull(listener.result);
assertEquals("closed", listener.error.getMessage());
listener = new SyncedFlushUtil.LatchedListener();
flushService.attemptSyncedFlush(new ShardId("index not found", "_na_", 0), listener);
listener.latch.await();
assertNotNull(listener.error);
assertNull(listener.result);
assertEquals("no such index", listener.error.getMessage());
}
public void testFailAfterIntermediateCommit() throws InterruptedException {
createIndex("test");
client().prepareIndex("test", "test", "1").setSource("{}", XContentType.JSON).get();
IndexService test = getInstanceFromNode(IndicesService.class).indexService(resolveIndex("test"));
IndexShard shard = test.getShardOrNull(0);
SyncedFlushService flushService = getInstanceFromNode(SyncedFlushService.class);
final ShardId shardId = shard.shardId();
final ClusterState state = getInstanceFromNode(ClusterService.class).state();
final IndexShardRoutingTable shardRoutingTable = flushService.getShardRoutingTable(shardId, state);
final List<ShardRouting> activeShards = shardRoutingTable.activeShards();
assertEquals("exactly one active shard", 1, activeShards.size());
Map<String, Engine.CommitId> commitIds = SyncedFlushUtil.sendPreSyncRequests(flushService, activeShards, state, shardId);
assertEquals("exactly one commit id", 1, commitIds.size());
if (randomBoolean()) {
client().prepareIndex("test", "test", "2").setSource("{}", XContentType.JSON).get();
}
client().admin().indices().prepareFlush("test").setForce(true).get();
String syncId = UUIDs.base64UUID();
final SyncedFlushUtil.LatchedListener<ShardsSyncedFlushResult> listener = new SyncedFlushUtil.LatchedListener();
flushService.sendSyncRequests(syncId, activeShards, state, commitIds, shardId, shardRoutingTable.size(), listener);
listener.latch.await();
assertNull(listener.error);
ShardsSyncedFlushResult syncedFlushResult = listener.result;
assertNotNull(syncedFlushResult);
assertEquals(0, syncedFlushResult.successfulShards());
assertEquals(1, syncedFlushResult.totalShards());
assertEquals(syncId, syncedFlushResult.syncId());
assertNotNull(syncedFlushResult.shardResponses().get(activeShards.get(0)));
assertFalse(syncedFlushResult.shardResponses().get(activeShards.get(0)).success());
assertEquals("commit has changed", syncedFlushResult.shardResponses().get(activeShards.get(0)).failureReason());
}
public void testFailWhenCommitIsMissing() throws InterruptedException {
createIndex("test");
client().prepareIndex("test", "test", "1").setSource("{}", XContentType.JSON).get();
IndexService test = getInstanceFromNode(IndicesService.class).indexService(resolveIndex("test"));
IndexShard shard = test.getShardOrNull(0);
SyncedFlushService flushService = getInstanceFromNode(SyncedFlushService.class);
final ShardId shardId = shard.shardId();
final ClusterState state = getInstanceFromNode(ClusterService.class).state();
final IndexShardRoutingTable shardRoutingTable = flushService.getShardRoutingTable(shardId, state);
final List<ShardRouting> activeShards = shardRoutingTable.activeShards();
assertEquals("exactly one active shard", 1, activeShards.size());
Map<String, Engine.CommitId> commitIds = SyncedFlushUtil.sendPreSyncRequests(flushService, activeShards, state, shardId);
assertEquals("exactly one commit id", 1, commitIds.size());
commitIds.clear(); // wipe it...
String syncId = UUIDs.base64UUID();
SyncedFlushUtil.LatchedListener<ShardsSyncedFlushResult> listener = new SyncedFlushUtil.LatchedListener();
flushService.sendSyncRequests(syncId, activeShards, state, commitIds, shardId, shardRoutingTable.size(), listener);
listener.latch.await();
assertNull(listener.error);
ShardsSyncedFlushResult syncedFlushResult = listener.result;
assertNotNull(syncedFlushResult);
assertEquals(0, syncedFlushResult.successfulShards());
assertEquals(1, syncedFlushResult.totalShards());
assertEquals(syncId, syncedFlushResult.syncId());
assertNotNull(syncedFlushResult.shardResponses().get(activeShards.get(0)));
assertFalse(syncedFlushResult.shardResponses().get(activeShards.get(0)).success());
assertEquals("no commit id from pre-sync flush", syncedFlushResult.shardResponses().get(activeShards.get(0)).failureReason());
}
}
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