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https://issues.apache.org/jira/browse/SYNAPSE-991?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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Hiranya Jayathilaka resolved SYNAPSE-991.
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Resolution: Not A Problem
It seems the reporter is satisfied with the explanation provided. Please reopen
if this is still an issue.
> GC issue. StatisticsCollector has not been invoked by callback.
> ---------------------------------------------------------------
>
> Key: SYNAPSE-991
> URL: https://issues.apache.org/jira/browse/SYNAPSE-991
> Project: Synapse
> Issue Type: Bug
> Components: Core
> Affects Versions: 2.1
> Environment: Production environment.
> wrapper.java.initmemory=2048
> wrapper.java.maxmemory=2048
> wrapper.java.additional.12=-XX:NewSize=1024m
> wrapper.java.additional.13=-XX:MaxNewSize=1024m
> wrapper.java.additional.14=-XX:PermSize=256m
> wrapper.java.additional.15=-XX:MaxPermSize=256m
> wrapper.java.additional.16=-XX:SurvivorRatio=65536
> wrapper.java.additional.17=-XX:TargetSurvivorRatio=0
> wrapper.java.additional.18=-XX:MaxTenuringThreshold=0
> wrapper.java.additional.19=-XX:+UseParNewGC
> wrapper.java.additional.20=-XX:ParallelGCThreads=12
> wrapper.java.additional.21=-XX:+UseConcMarkSweepGC
> wrapper.java.additional.22=-XX:+CMSParallelRemarkEnabled
> wrapper.java.additional.23=-XX:+CMSCompactWhenClearAllSoftRefs
> wrapper.java.additional.24=-XX:+UseCMSInitiatingOccupancyOnly
> wrapper.java.additional.25=-XX:CMSInitiatingOccupancyFraction=85
> Reporter: Arockia Raphael
> Assignee: Hiranya Jayathilaka
> Priority: Minor
>
> Production server was up with all synapse services for the past 2 months. GC
> could not be able to reclaim the memory in Old Gen which of size close to 1
> GB. Based on our heap dump analysis, StatisticsCollector was holding the
> memory and manually invoked StatisticsViewMBean.clearAllStatistics() method
> to get rid of the issue.
> When we analysed the code, we found out the StatisticsCollector has never
> been called when the server in Started State. Periodic callbacks are
> scheduled but not triggering StatisticsCleaner which cleans up
> StatisticsCollector references.
> SynapseConfigUtils.getStatisticsCollector(ServerContextInformation
> contextInfo) {
> if (contextInfo != null && contextInfo.getServerState() ==
> ServerState.INITIALIZED) {
> Please let us know any patch or fix for this issue.
> Thanks,
> Arockia
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