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Posted to issues@ignite.apache.org by "Maxim Muzafarov (Jira)" <ji...@apache.org> on 2020/07/08 12:13:00 UTC
[jira] [Commented] (IGNITE-13126) Refactor of Continuous Query
buffers to reduce heap usage
[ https://issues.apache.org/jira/browse/IGNITE-13126?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=17153544#comment-17153544 ]
Maxim Muzafarov commented on IGNITE-13126:
------------------------------------------
{code:title=CacheContinuousQueryEventBuffer.java}
if (batch == null || cntr < batch.startCntr)
{code}
We can skip backupQ.add() if we already have acked counter more then current counter.
> Refactor of Continuous Query buffers to reduce heap usage
> ---------------------------------------------------------
>
> Key: IGNITE-13126
> URL: https://issues.apache.org/jira/browse/IGNITE-13126
> Project: Ignite
> Issue Type: Improvement
> Reporter: Maxim Muzafarov
> Assignee: Maxim Muzafarov
> Priority: Major
> Fix For: 2.9
>
>
> There are several unnecessary changes needs to be done to reduce continuous query buffer usage:
> - CacheContinuousQueryEventBuffer.part is unnecessary;
> - CacheContinuousQueryEventBuffer.backupQ must be changed to ConcurrentLinkedDeque;
> - Use lambda instead for partition counter resolving instead on anonymous class creation for CacheContinuousQueryEventBuffer;
> - Batch local variables may be {{short}} type;
> etc.
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