My Oracle Support Banner

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

Last updated on NOVEMBER 06, 2018

Applies to:

Oracle Coherence - Version: 3.6.1 and later   [Release: AS10g 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)

Cause

To view full details, sign in with your My Oracle Support account.

Don't have a My Oracle Support account? Click to get started!

In this Document
  Symptoms
  Cause
  Solution
  References

This document is being delivered to you via Oracle Support's Rapid Visibility (RaV) process and therefore has not been subject to an independent technical review.

My Oracle Support provides customers with access to over a million knowledge articles and a vibrant support community of peers and Oracle experts.