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https://issues.apache.org/jira/browse/CASSANDRA-5691?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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Mikhail Mazursky updated CASSANDRA-5691:
Attachment: trunk-5691-v2.patch
Attaching v2 patch.
Can you please explain your point of view? Why do you prefer SimpleCondition
that is not really a Condition to CountDownLatch?
> Remove SimpleCondition
> --
>
> Key: CASSANDRA-5691
> URL: https://issues.apache.org/jira/browse/CASSANDRA-5691
> Project: Cassandra
> Issue Type: Bug
> Components: Core
>Reporter: Mikhail Mazursky
>Priority: Minor
> Attachments: trunk-5691.patch, trunk-5691-v2.patch
>
>
> Problematic scenario:
> 1. two threads get blocked in SimpleCondition.await();
> 2. some thread calls SimpleCondition.signal();
> 3. one of blocked threads wakes up and runs;
> 4. spurious wakeup happens in the second thread and it wakes up too and runs
> even though nobody signaled it.
> Thus this is a broken implementation of Condition interface.
> Anyway, looking at how code uses it, SimpleCondition can just be replaced
> with CountDownLatch.
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