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Posted to issues@flink.apache.org by "Kostas Kloudas (JIRA)" <ji...@apache.org> on 2018/09/17 09:54:00 UTC

[jira] [Closed] (FLINK-10275) StreamTask support object reuse

     [ https://issues.apache.org/jira/browse/FLINK-10275?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]

Kostas Kloudas closed FLINK-10275.
----------------------------------
    Resolution: Won't Fix

The FLIP mentioned is not yet approved by the community. In addition, the changes introduced by this change are a lot more and have the potential to break user code, if they are not done in conjunction with the other changes that FLIP-21 will (potentially) introduce.

> StreamTask support object reuse
> -------------------------------
>
>                 Key: FLINK-10275
>                 URL: https://issues.apache.org/jira/browse/FLINK-10275
>             Project: Flink
>          Issue Type: Improvement
>          Components: Streaming
>    Affects Versions: 1.7.0
>            Reporter: 陈梓立
>            Priority: Major
>              Labels: pull-request-available
>             Fix For: 1.7.0
>
>
> StreamTask support efficient object reuse. The purpose behind this is to reduce pressure on the garbage collector.
> All objects are reused, without backup copies. The operators and UDFs must be careful to not keep any objects as state or not to modify the objects.
> *FYI, now this thread is blocked by FLIP-21. The pull request attached is closed for a needed rework.*



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