[
https://issues.apache.org/jira/browse/FLINK-31293?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
]
Weijie Guo updated FLINK-31293:
-------------------------------
Attachment: image-2023-03-02-12-29-03-003.png
> Request memory segment from LocalBufferPool may hanging forever.
> ----------------------------------------------------------------
>
> Key: FLINK-31293
> URL: https://issues.apache.org/jira/browse/FLINK-31293
> Project: Flink
> Issue Type: Bug
> Affects Versions: 1.17.0
> Reporter: Weijie Guo
> Priority: Major
> Attachments: image-2023-03-02-12-23-50-572.png,
> image-2023-03-02-12-28-48-437.png, image-2023-03-02-12-29-03-003.png
>
>
> From the thread dump information, we can see that the task is waiting for the
> \{{LocalBufferPool}} to become available. It is strange that other tasks have
> finished and released network memory already. Undoubtedly, this is an
> unexpected behavior, which implies that there must be a bug in the
> \{{LocalBufferPool}} or \{{NetworkBufferPool}}.
> !image-2023-03-02-12-23-50-572.png|width=650,height=153!
> We can find a strange phenomenon that there are available buffers in the
> LocalBufferPool, but they are considered to be non-available. Another thing
> to note is that it now holds an overdraft buffer
--
This message was sent by Atlassian Jira
(v8.20.10#820010)
