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Posted to dev@synapse.apache.org by "Hiranya Jayathilaka (JIRA)" <ji...@apache.org> on 2010/11/25 19:29:13 UTC
[jira] Resolved: (SYNAPSE-661) ConcurrentModifucationException at
StatisticsRecord
[ https://issues.apache.org/jira/browse/SYNAPSE-661?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]
Hiranya Jayathilaka resolved SYNAPSE-661.
-----------------------------------------
Resolution: Fixed
I'm resolving this issue, since I haven't seen this issue in a while. It seems to be fixed. Will reopen if I run into it again.
> ConcurrentModifucationException at StatisticsRecord
> ---------------------------------------------------
>
> Key: SYNAPSE-661
> URL: https://issues.apache.org/jira/browse/SYNAPSE-661
> Project: Synapse
> Issue Type: Bug
> Components: Core
> Affects Versions: 1.2
> Reporter: Hiranya Jayathilaka
> Assignee: indika priyantha kumara
> Priority: Critical
> Fix For: 2.0
>
>
> When running load tests (concurrency level > 15) with statistics enabled, every now and then, I get the following exception:
> Exception in thread "Thread-20" java.util.ConcurrentModificationException
> at java.util.AbstractList$Itr.checkForComodification(AbstractList.java:372)
> at java.util.AbstractList$Itr.next(AbstractList.java:343)
> at org.apache.synapse.aspects.statistics.StatisticsRecord.getAllLogIds(StatisticsRecord.java:90)
> at org.apache.synapse.aspects.statistics.view.SystemViewStrategy.determineView(SystemViewStrategy.java:61)
> Here I also have some custom code which tries to get the latest stats from Synapse periodically. When the custom code tries to access a StatisticsRecord, if it also gets updated, the above error is thrown. I think we should use a more thread safe data structure in the StatisticsRecord class, instead of an ArrayList.
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