[
https://issues.apache.org/jira/browse/FLINK-14300?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=16942753#comment-16942753
]
Piotr Nowojski edited comment on FLINK-14300 at 10/2/19 12:11 PM:
------------------------------------------------------------------
Hi [~mklein0]. Thank you for reporting and proposing a fix for this bug.
Could you open a pull request for this change on the
[github|https://github.com/apache/flink/]? If you do so, please notify me so I
can quickly review it.
was (Author: pnowojski):
Hi [~mklein0]. Thank you for reporting and proposing a fix for this bug.
Could you open a pull request for this change on the
[github|https://github.com/apache/flink/]?
> StreamTask#invoke leaks threads if OperatorChain fails to be constructed
> ------------------------------------------------------------------------
>
> Key: FLINK-14300
> URL: https://issues.apache.org/jira/browse/FLINK-14300
> Project: Flink
> Issue Type: Bug
> Components: Runtime / Task
> Affects Versions: 1.8.1, 1.8.2, 1.9.0
> Reporter: Marcos Klein
> Priority: Minor
> Fix For: 1.10.0
>
> Attachments: thread-leak-patch.diff
>
>
> In the *StreamTask#invoke* method if an exception occurs during the
> allocation of the
> [operatorChain|[https://github.com/apache/flink/blob/release-1.9.0/flink-streaming-java/src/main/java/org/apache/flink/streaming/runtime/tasks/StreamTask.java#L370]]
> class, the [exception
> handling|[https://github.com/apache/flink/blob/release-1.9.0/flink-streaming-java/src/main/java/org/apache/flink/streaming/runtime/tasks/StreamTask.java#L485-L491]]
> fails to cleanup the threads allocated as *StreamTask#recordWriters*. This
> causes threads to leak as flink attempts to continually restart and fail for
> the same cause.
>
> An example cause is a deserialization issue on a custom operator from a
> checkpoint.
>
> Attached is a suggested fix for the master branch.
--
This message was sent by Atlassian Jira
(v8.3.4#803005)
