[JBoss JIRA] (ISPN-5584) Support fine-grained write skew check for FineGrainedAtomicMap entries
by Dan Berindei (JIRA)
[ https://issues.jboss.org/browse/ISPN-5584?page=com.atlassian.jira.plugin.... ]
Dan Berindei updated ISPN-5584:
-------------------------------
Fix Version/s: 8.2.0.CR1
(was: 8.2.0.Beta1)
> Support fine-grained write skew check for FineGrainedAtomicMap entries
> ----------------------------------------------------------------------
>
> Key: ISPN-5584
> URL: https://issues.jboss.org/browse/ISPN-5584
> Project: Infinispan
> Issue Type: Feature Request
> Components: Core
> Affects Versions: 8.0.0.Alpha2, 7.2.3.Final
> Reporter: Dan Berindei
> Fix For: 8.2.0.CR1
>
>
> FineGrainedAtomicMap doesn't currently work with write skew check enabled.
> I was able to make it work by adding a special case for DeltaAwareCacheEntry in WriteSkewHelper, however the map has a single version, so the write skew check fails if any of the sub-keys were modified in parallel. With pessimistic locking, fine-grained maps allow the user to modify different sub-keys concurrently, we should allow the same with optimistic locking.
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[JBoss JIRA] (ISPN-5614) Write performance regression after ISPN-5484
by Dan Berindei (JIRA)
[ https://issues.jboss.org/browse/ISPN-5614?page=com.atlassian.jira.plugin.... ]
Dan Berindei updated ISPN-5614:
-------------------------------
Fix Version/s: 8.2.0.CR1
(was: 8.2.0.Beta1)
> Write performance regression after ISPN-5484
> --------------------------------------------
>
> Key: ISPN-5614
> URL: https://issues.jboss.org/browse/ISPN-5614
> Project: Infinispan
> Issue Type: Bug
> Components: Core
> Affects Versions: 8.0.0.Beta1
> Reporter: Dan Berindei
> Assignee: Dan Berindei
> Fix For: 8.2.0.CR1
>
>
> Regression test shows a significant drop in throughput in the replicated and distributed write tests.
> This was after adjusting the internal thread pool settings in the JGroups configuration: with the default (min=5, max=20, queue=0), the distributed read test would fail to finish.
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