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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.recovery;
import org.elasticsearch.action.admin.indices.flush.FlushRequest;
import org.elasticsearch.action.index.IndexRequest;
import org.elasticsearch.common.bytes.BytesArray;
import org.elasticsearch.index.VersionType;
import org.elasticsearch.index.engine.Engine;
import org.elasticsearch.index.mapper.SourceToParse;
import org.elasticsearch.index.seqno.SequenceNumbersService;
import org.elasticsearch.index.shard.IndexShard;
import org.elasticsearch.index.shard.IndexShardTestCase;
import static org.hamcrest.Matchers.equalTo;
public class PeerRecoveryTargetServiceTests extends IndexShardTestCase {
public void testGetStartingSeqNo() throws Exception {
IndexShard replica = newShard(false);
RecoveryTarget recoveryTarget = new RecoveryTarget(replica, null, null, null);
try {
recoveryEmptyReplica(replica);
int docs = randomIntBetween(1, 10);
final String index = replica.shardId().getIndexName();
long seqNo = 0;
for (int i = 0; i < docs; i++) {
Engine.Index indexOp = replica.prepareIndexOnReplica(
SourceToParse.source(SourceToParse.Origin.REPLICA, index, "type", "doc_" + i, new BytesArray("{}")),
seqNo++, 1, VersionType.EXTERNAL, IndexRequest.UNSET_AUTO_GENERATED_TIMESTAMP, false);
replica.index(indexOp);
if (rarely()) {
// insert a gap
seqNo++;
}
}
final long maxSeqNo = replica.seqNoStats().getMaxSeqNo();
final long localCheckpoint = replica.getLocalCheckpoint();
assertThat(PeerRecoveryTargetService.getStartingSeqNo(recoveryTarget), equalTo(SequenceNumbersService.UNASSIGNED_SEQ_NO));
replica.updateGlobalCheckpointOnReplica(maxSeqNo - 1);
replica.getTranslog().sync();
// commit is enough, global checkpoint is below max *committed* which is NO_OPS_PERFORMED
assertThat(PeerRecoveryTargetService.getStartingSeqNo(recoveryTarget), equalTo(0L));
replica.flush(new FlushRequest());
// commit is still not good enough, global checkpoint is below max
assertThat(PeerRecoveryTargetService.getStartingSeqNo(recoveryTarget), equalTo(SequenceNumbersService.UNASSIGNED_SEQ_NO));
replica.updateGlobalCheckpointOnReplica(maxSeqNo);
replica.getTranslog().sync();
// commit is enough, global checkpoint is below max
assertThat(PeerRecoveryTargetService.getStartingSeqNo(recoveryTarget), equalTo(localCheckpoint + 1));
} finally {
closeShards(replica);
recoveryTarget.decRef();
}
}
}
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