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https://issues.apache.org/jira/browse/IGNITE-2466?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=15149008#comment-15149008
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Nikolay Tikhonov commented on IGNITE-2466:
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This issue reproduced after IGNITE-2587 fix. I found one more reason for OOM.
Atomic cache saves GridNearUpdateRequest which keep cache objects. For all
cache modes except {{FULL_ASYNC}} they are not needed. Got NPE when occured
remap in {{GridDhtAtomicCache}} but keys and value have been removed from
{{GridDhtAtomicUpdateRequest}}. Added {{onAckReceived}} method on {{Message}}
interface and cleanup unnecessary values from this request when ack received to
avoid the NPE.
> OutOfMemory when ONHEAP_TIERED mode is used
> -------------------------------------------
>
> Key: IGNITE-2466
> URL: https://issues.apache.org/jira/browse/IGNITE-2466
> Project: Ignite
> Issue Type: Bug
> Affects Versions: 1.5.0.final
> Reporter: Denis Magda
> Assignee: Nikolay Tikhonov
> Fix For: 1.6
>
> Attachments: MemTest.java, example-ignite.xml
>
>
> To reproduce, run two server nodes with 2g of heap each and then MemTest.
> Servers will fail with OOME. If backups are disabled or there is only one
> server node, it works.
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