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https://issues.apache.org/jira/browse/CASSANDRA-2626?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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Jonathan Ellis updated CASSANDRA-2626:
--------------------------------------
Attachment: 2626.txt
Ah, you've nailed it. Thanks for tracking that down.
Patch attached to avoid re-wrapping an already unmodifiable collection.
(Surprised Collections.unmodifiable... doesn't do this.)
We may also want to look at using ImmutableSet
(http://guava-libraries.googlecode.com/svn/trunk/javadoc/com/google/common/collect/ImmutableSet.html)
instead of HashSet wrapped in UnmodifiableSet. (ImmutableSet claims to
"perform significantly better than HashSet for objects with very fast
Object.hashCode() implementations.")
> stack overflow while compacting
> -------------------------------
>
> Key: CASSANDRA-2626
> URL: https://issues.apache.org/jira/browse/CASSANDRA-2626
> Project: Cassandra
> Issue Type: Bug
> Components: Documentation & website
> Affects Versions: 0.8 beta 1
> Reporter: Terje Marthinussen
> Attachments: 2626.txt
>
>
> This is a trunk build from May 3.
> After adding CASSANDRA-2401, I have gotten the following on several nodes.
> I am not 100% sure right now if it is related to 2401 but it may seem likely.
> Unfortunately, as often is the case with stack overflows, I don't see the
> start of the stack
> ERROR [CompactionExecutor:17] 2011-05-09 07:56:32,479
> AbstractCassandraDaemon.java (line 112) Fatal exception in thread
> Thread[CompactionExecutor:17,1,main]
> java.lang.StackOverflowError
> at
> java.util.Collections$UnmodifiableCollection.size(Collections.java:998)
> at
> java.util.Collections$UnmodifiableCollection.size(Collections.java:998)
> at
> java.util.Collections$UnmodifiableCollection.size(Collections.java:998)
> at
> java.util.Collections$UnmodifiableCollection.size(Collections.java:998)
> at
> java.util.Collections$UnmodifiableCollection.size(Collections.java:998)
> at
> java.util.Collections$UnmodifiableCollection.size(Collections.java:998)
> at
> java.util.Collections$UnmodifiableCollection.size(Collections.java:998)
> at
> java.util.Collections$UnmodifiableCollection.size(Collections.java:998)
> at
> java.util.Collections$UnmodifiableCollection.size(Collections.java:998)
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