Details
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Bug
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Resolution: Fixed
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Major
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3.0.1
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None
Description
- Elastic Server: 5.6.4
- Transport Plugin: cypress-3.0.0-5.6.4
- Couchbase Server: 5.1.1
The intent of storeUUID is to store the given UUID if possibe, otherwise fail silently so the operation can be retried. What's happening instead is that the write fails because a competing thread has already written the document. The method throws an exception istead of failing silently, and this exception is propagated all the way to the Jetty ServletHandler. This causes Couchbase to remove the replication 
Stack trace:
[2018-08-08T08:40:10,582][WARN ][o.e.j.s.ServletHandler ] /pools/default/buckets/mybucket
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org.elasticsearch.index.engine.VersionConflictEngineException: [couchbaseCheckpoint][bucketUUID]: version conflict, document already exists (current version [1])
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at org.elasticsearch.index.engine.InternalEngine.planIndexingAsPrimary(InternalEngine.java:582) ~[elasticsearch-5.6.4.jar:5.6.4]
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at org.elasticsearch.index.engine.InternalEngine.index(InternalEngine.java:493) ~[elasticsearch-5.6.4.jar:5.6.4]
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at org.elasticsearch.index.shard.IndexShard.index(IndexShard.java:557) ~[elasticsearch-5.6.4.jar:5.6.4]
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at org.elasticsearch.index.shard.IndexShard.index(IndexShard.java:546) ~[elasticsearch-5.6.4.jar:5.6.4]
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at org.elasticsearch.action.bulk.TransportShardBulkAction.executeIndexRequestOnPrimary(TransportShardBulkAction.java:492) ~[elasticsearch-5.6.4.jar:5.6.4]
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at org.elasticsearch.action.bulk.TransportShardBulkAction.executeBulkItemRequest(TransportShardBulkAction.java:146) ~[elasticsearch-5.6.4.jar:5.6.4]
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at org.elasticsearch.action.bulk.TransportShardBulkAction.shardOperationOnPrimary(TransportShardBulkAction.java:115) ~[elasticsearch-5.6.4.jar:5.6.4]
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at org.elasticsearch.action.bulk.TransportShardBulkAction.shardOperationOnPrimary(TransportShardBulkAction.java:70) ~[elasticsearch-5.6.4.jar:5.6.4]
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at org.elasticsearch.action.support.replication.TransportReplicationAction$PrimaryShardReference.perform(TransportReplicationAction.java:975) ~[elasticsearch-5.6.4.jar:5.6.4]
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at org.elasticsearch.action.support.replication.TransportReplicationAction$PrimaryShardReference.perform(TransportReplicationAction.java:944) ~[elasticsearch-5.6.4.jar:5.6.4]
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at org.elasticsearch.action.support.replication.ReplicationOperation.execute(ReplicationOperation.java:113) ~[elasticsearch-5.6.4.jar:5.6.4]
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at org.elasticsearch.action.support.replication.TransportReplicationAction$AsyncPrimaryAction.onResponse(TransportReplicationAction.java:345) ~[elasticsearch-5.6.4.jar:5.6.4]
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at org.elasticsearch.action.support.replication.TransportReplicationAction$AsyncPrimaryAction.onResponse(TransportReplicationAction.java:270) ~[elasticsearch-5.6.4.jar:5.6.4]
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at org.elasticsearch.action.support.replication.TransportReplicationAction$1.onResponse(TransportReplicationAction.java:924) ~[elasticsearch-5.6.4.jar:5.6.4]
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at org.elasticsearch.action.support.replication.TransportReplicationAction$1.onResponse(TransportReplicationAction.java:921) ~[elasticsearch-5.6.4.jar:5.6.4]
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at org.elasticsearch.index.shard.IndexShardOperationsLock.acquire(IndexShardOperationsLock.java:151) ~[elasticsearch-5.6.4.jar:5.6.4]
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at org.elasticsearch.index.shard.IndexShard.acquirePrimaryOperationLock(IndexShard.java:1659) ~[elasticsearch-5.6.4.jar:5.6.4]
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at org.elasticsearch.action.support.replication.TransportReplicationAction.acquirePrimaryShardReference(TransportReplicationAction.java:933) ~[elasticsearch-5.6.4.jar:5.6.4]
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at org.elasticsearch.action.support.replication.TransportReplicationAction.access$500(TransportReplicationAction.java:92) ~[elasticsearch-5.6.4.jar:5.6.4]
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at org.elasticsearch.action.support.replication.TransportReplicationAction$AsyncPrimaryAction.doRun(TransportReplicationAction.java:291) ~[elasticsearch-5.6.4.jar:5.6.4]
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at org.elasticsearch.common.util.concurrent.AbstractRunnable.run(AbstractRunnable.java:37) ~[elasticsearch-5.6.4.jar:5.6.4]
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at org.elasticsearch.action.support.replication.TransportReplicationAction$PrimaryOperationTransportHandler.messageReceived(TransportReplicationAction.java:266) ~[elasticsearch-5.6.4.jar:5.6.4]
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at org.elasticsearch.action.support.replication.TransportReplicationAction$PrimaryOperationTransportHandler.messageReceived(TransportReplicationAction.java:248) ~[elasticsearch-5.6.4.jar:5.6.4]
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at org.elasticsearch.transport.RequestHandlerRegistry.processMessageReceived(RequestHandlerRegistry.java:69) ~[elasticsearch-5.6.4.jar:5.6.4]
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at org.elasticsearch.transport.TransportService$7.doRun(TransportService.java:654) ~[elasticsearch-5.6.4.jar:5.6.4]
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at org.elasticsearch.common.util.concurrent.ThreadContext$ContextPreservingAbstractRunnable.doRun(ThreadContext.java:638) ~[elasticsearch-5.6.4.jar:5.6.4]
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at org.elasticsearch.common.util.concurrent.AbstractRunnable.run(AbstractRunnable.java:37) ~[elasticsearch-5.6.4.jar:5.6.4]
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at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1149) ~[?:1.8.0_171]
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at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:624) ~[?:1.8.0_171]
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at java.lang.Thread.run(Thread.java:748) [?:1.8.0_171]
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