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Cache Query Hang When Using Write-Behind (Doc ID 1334360.1)

Last updated on MAY 07, 2020

Applies to:

Oracle Coherence - Version 3.6.1 and later
Information in this document applies to any platform.

Symptoms

The following sequence of actions leads to the problem

1. In an Invocable, add new entries to cache(write-behind)
2. Wait for a few seconds to let the entries in write-behind queue get flushed.
3. Run query against the cache and it will get stuck for some time. A response after about ~ 212084 milliseconds had been observed instead of ~ 20 milliseconds.

The stuck thread:

java.lang.Thread.yield(Native Method)
com.tangosol.coherence.component.util.daemon.queueProcessor.service.grid.partitionedService.PartitionedCache$Storage.reevaluateQueryResults(PartitionedCache
.CDB:33)
com.tangosol.coherence.component.util.daemon.queueProcessor.service.grid.partitionedService.PartitionedCache$Storage.checkIndexConsistency(PartitionedCache.
CDB:52)
com.tangosol.coherence.component.util.daemon.queueProcessor.service.grid.partitionedService.PartitionedCache$Storage.createQueryResult(PartitionedCache.CDB:
94)
com.tangosol.coherence.component.util.daemon.queueProcessor.service.grid.partitionedService.PartitionedCache$Storage.query(PartitionedCache.CDB:72)
com.tangosol.coherence.component.util.daemon.queueProcessor.service.grid.partitionedService.PartitionedCache.onQueryRequest(PartitionedCache.CDB:19)
com.tangosol.coherence.component.util.daemon.queueProcessor.service.grid.partitionedService.PartitionedCache$QueryRequest.run(PartitionedCache.CDB:1)
com.tangosol.coherence.component.util.DaemonPool$WrapperTask.run(DaemonPool.CDB:1)
com.tangosol.coherence.component.util.DaemonPool$WrapperTask.run(DaemonPool.CDB:32)
com.tangosol.coherence.component.util.DaemonPool$Daemon.onNotify(DaemonPool.CDB:63)
com.tangosol.coherence.component.util.Daemon.run(Daemon.CDB:42)
java.lang.Thread.run(Unknown Source)

Changes

 

Cause

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In this Document
Symptoms
Changes
Cause
Solution
References


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