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https://issues.apache.org/jira/browse/IGNITE-10959?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=17113502#comment-17113502
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chin commented on IGNITE-10959:
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I just want to say that we ran into OOM with ContinuousQuery constantly, likely
because of this bug, with no way around it, so in the end we were forced to
abandon Ignite and moved to Hazelcast instead, which is a shame.
> Memory leaks in continuous query handlers
> -----------------------------------------
>
> Key: IGNITE-10959
> URL: https://issues.apache.org/jira/browse/IGNITE-10959
> Project: Ignite
> Issue Type: Bug
> Affects Versions: 2.7
> Reporter: Denis Mekhanikov
> Assignee: Maxim Muzafarov
> Priority: Critical
> Attachments: CacheContinuousQueryMemoryUsageTest.java,
> CacheContinuousQueryMemoryUsageTest.result,
> CacheContinuousQueryMemoryUsageTest2.java, continuousquery_leak_profile.png
>
>
> Continuous query handlers don't clear internal data structures after cache
> events are processed.
> A test, that reproduces the problem, is attached.
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