ConcurrentModifucationException at StatisticsRecord
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Key: SYNAPSE-661
URL: https://issues.apache.org/jira/browse/SYNAPSE-661
Project: Synapse
Issue Type: Bug
Affects Versions: 1.2
Reporter: Hiranya Jayathilaka
Assignee: indika priyantha kumara
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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