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https://issues.apache.org/jira/browse/FLINK-10275?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=16611931#comment-16611931
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ASF GitHub Bot commented on FLINK-10275:
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StephanEwen commented on issue #6643: [FLINK-10275] StreamTask support object
reuse
URL: https://github.com/apache/flink/pull/6643#issuecomment-420611044
I think we need to find consensus on FLIP-21 before going for this.
Currently, object reuse in streaming means to have "no copy on chaining", which
is very different from the semantics in the batch API.
Simply reusing objects now will break many setups.
Before we can merge this, we need to extend the semantics to differentiate
between actual object reuse and avoiding copies on handover.
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> 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
> Assignee: 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.
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