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https://issues.apache.org/jira/browse/IGNITE-11058?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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Sergey Antonov reassigned IGNITE-11058:
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Assignee: Sergey Antonov
> Possible OOM due to large discard queue in TcpDiscoverySpi
> ----------------------------------------------------------
>
> Key: IGNITE-11058
> URL: https://issues.apache.org/jira/browse/IGNITE-11058
> Project: Ignite
> Issue Type: Improvement
> Reporter: Alexei Scherbakov
> Assignee: Sergey Antonov
> Priority: Major
> Fix For: 2.8
>
>
> Currently it's necessary to store every ensured (marked withÂ
> TcpDiscoveryEnsureDelivery annotation) in pending message queue until it's
> discarded from coordinator for implementing guaranteed delivery, otherwise if
> subsequent nodes will fail while forwarding message the guarantee couldn't be
> fulfilled.
> On large topologies with active changes the queue may contain many very large
> messages causing heap usage bursts and possible OOM.
> Possible solution:
> # off-load pending messages payload to off-heap or even on disk.
> # store messages in serialized form for avoiding JVM Object overhead.
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