[jira] [Updated] (FLINK-12351) AsyncWaitOperator should deep copy StreamElement when object reuse is enabled

["Jark Wu (Jira)" <ji...@apache.org>]

     [ https://issues.apache.org/jira/browse/FLINK-12351?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]

Jark Wu updated FLINK-12351:
----------------------------
    Fix Version/s:     (was: 1.10.0)

> AsyncWaitOperator should deep copy StreamElement when object reuse is enabled
> -----------------------------------------------------------------------------
>
>                 Key: FLINK-12351
>                 URL: https://issues.apache.org/jira/browse/FLINK-12351
>             Project: Flink
>          Issue Type: Bug
>          Components: API / DataStream
>            Reporter: Jark Wu
>            Assignee: Jark Wu
>            Priority: Major
>              Labels: pull-request-available
>          Time Spent: 10m
>  Remaining Estimate: 0h
>
> Currently, AsyncWaitOperator directly put the input StreamElement into {{StreamElementQueue}}. But when object reuse is enabled, the StreamElement is reused, which means the element in {{StreamElementQueue}} will be modified. As a result, the output of AsyncWaitOperator might be wrong.
> An easy way to fix this might be deep copy the input StreamElement when object reuse is enabled, like this: https://github.com/apache/flink/blob/blink/flink-streaming-java/src/main/java/org/apache/flink/streaming/api/operators/async/AsyncWaitOperator.java#L209



--
This message was sent by Atlassian Jira
(v8.3.4#803005)