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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.index.shard;
import org.elasticsearch.action.resync.ResyncReplicationResponse;
import org.elasticsearch.action.support.PlainActionFuture;
import org.elasticsearch.common.io.stream.ByteBufferStreamInput;
import org.elasticsearch.common.io.stream.BytesStreamOutput;
import org.elasticsearch.common.settings.Settings;
import org.elasticsearch.common.unit.ByteSizeValue;
import org.elasticsearch.common.xcontent.ToXContent;
import org.elasticsearch.common.xcontent.XContentBuilder;
import org.elasticsearch.common.xcontent.XContentFactory;
import org.elasticsearch.tasks.TaskManager;
import java.io.IOException;
import java.nio.ByteBuffer;
import java.util.Collections;
import java.util.concurrent.atomic.AtomicBoolean;
import static org.hamcrest.Matchers.containsString;
import static org.hamcrest.core.IsInstanceOf.instanceOf;
public class PrimaryReplicaSyncerTests extends IndexShardTestCase {
public void testSyncerSendsOffCorrectDocuments() throws Exception {
IndexShard shard = newStartedShard(true);
TaskManager taskManager = new TaskManager(Settings.EMPTY);
AtomicBoolean syncActionCalled = new AtomicBoolean();
PrimaryReplicaSyncer.SyncAction syncAction =
(request, parentTask, allocationId, listener) -> {
logger.info("Sending off {} operations", request.getOperations().size());
syncActionCalled.set(true);
assertThat(parentTask, instanceOf(PrimaryReplicaSyncer.ResyncTask.class));
listener.onResponse(new ResyncReplicationResponse());
};
PrimaryReplicaSyncer syncer = new PrimaryReplicaSyncer(Settings.EMPTY, taskManager, syncAction);
syncer.setChunkSize(new ByteSizeValue(randomIntBetween(1, 100)));
int numDocs = randomInt(10);
for (int i = 0; i < numDocs; i++) {
indexDoc(shard, "test", Integer.toString(i));
}
long globalCheckPoint = numDocs > 0 ? randomIntBetween(0, numDocs - 1) : 0;
boolean syncNeeded = numDocs > 0 && globalCheckPoint < numDocs - 1;
String allocationId = shard.routingEntry().allocationId().getId();
shard.updateAllocationIdsFromMaster(randomNonNegativeLong(), Collections.singleton(allocationId), Collections.emptySet());
shard.updateLocalCheckpointForShard(allocationId, globalCheckPoint);
assertEquals(globalCheckPoint, shard.getGlobalCheckpoint());
logger.info("Total ops: {}, global checkpoint: {}", numDocs, globalCheckPoint);
PlainActionFuture<PrimaryReplicaSyncer.ResyncTask> fut = new PlainActionFuture<>();
syncer.resync(shard, fut);
fut.get();
if (syncNeeded) {
assertTrue("Sync action was not called", syncActionCalled.get());
}
assertEquals(globalCheckPoint == numDocs - 1 ? 0 : numDocs, fut.get().getTotalOperations());
if (syncNeeded) {
long skippedOps = globalCheckPoint + 1; // everything up to global checkpoint included
assertEquals(skippedOps, fut.get().getSkippedOperations());
assertEquals(numDocs - skippedOps, fut.get().getResyncedOperations());
} else {
assertEquals(0, fut.get().getSkippedOperations());
assertEquals(0, fut.get().getResyncedOperations());
}
closeShards(shard);
}
public void testStatusSerialization() throws IOException {
PrimaryReplicaSyncer.ResyncTask.Status status = new PrimaryReplicaSyncer.ResyncTask.Status(randomAlphaOfLength(10),
randomIntBetween(0, 1000), randomIntBetween(0, 1000), randomIntBetween(0, 1000));
final BytesStreamOutput out = new BytesStreamOutput();
status.writeTo(out);
final ByteBufferStreamInput in = new ByteBufferStreamInput(ByteBuffer.wrap(out.bytes().toBytesRef().bytes));
PrimaryReplicaSyncer.ResyncTask.Status serializedStatus = new PrimaryReplicaSyncer.ResyncTask.Status(in);
assertEquals(status, serializedStatus);
}
public void testStatusEquals() throws IOException {
PrimaryReplicaSyncer.ResyncTask task = new PrimaryReplicaSyncer.ResyncTask(0, "type", "action", "desc", null);
task.setPhase(randomAlphaOfLength(10));
task.setResyncedOperations(randomIntBetween(0, 1000));
task.setTotalOperations(randomIntBetween(0, 1000));
task.setSkippedOperations(randomIntBetween(0, 1000));
PrimaryReplicaSyncer.ResyncTask.Status status = task.getStatus();
PrimaryReplicaSyncer.ResyncTask.Status sameStatus = task.getStatus();
assertNotSame(status, sameStatus);
assertEquals(status, sameStatus);
assertEquals(status.hashCode(), sameStatus.hashCode());
switch (randomInt(3)) {
case 0: task.setPhase("otherPhase"); break;
case 1: task.setResyncedOperations(task.getResyncedOperations() + 1); break;
case 2: task.setSkippedOperations(task.getSkippedOperations() + 1); break;
case 3: task.setTotalOperations(task.getTotalOperations() + 1); break;
}
PrimaryReplicaSyncer.ResyncTask.Status differentStatus = task.getStatus();
assertNotEquals(status, differentStatus);
}
public void testStatusReportsCorrectNumbers() throws IOException {
PrimaryReplicaSyncer.ResyncTask task = new PrimaryReplicaSyncer.ResyncTask(0, "type", "action", "desc", null);
task.setPhase(randomAlphaOfLength(10));
task.setResyncedOperations(randomIntBetween(0, 1000));
task.setTotalOperations(randomIntBetween(0, 1000));
task.setSkippedOperations(randomIntBetween(0, 1000));
PrimaryReplicaSyncer.ResyncTask.Status status = task.getStatus();
XContentBuilder jsonBuilder = XContentFactory.jsonBuilder();
status.toXContent(jsonBuilder, ToXContent.EMPTY_PARAMS);
String jsonString = jsonBuilder.string();
assertThat(jsonString, containsString("\"phase\":\"" + task.getPhase() + "\""));
assertThat(jsonString, containsString("\"totalOperations\":" + task.getTotalOperations()));
assertThat(jsonString, containsString("\"resyncedOperations\":" + task.getResyncedOperations()));
assertThat(jsonString, containsString("\"skippedOperations\":" + task.getSkippedOperations()));
}
}
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