[jira] [Commented] (FLINK-26593) task manager can not free memory when jobs are finished caused the linux out of memory

["Martijn Visser (Jira)" <ji...@apache.org>]

    [ https://issues.apache.org/jira/browse/FLINK-26593?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=17504791#comment-17504791 ] 

Martijn Visser commented on FLINK-26593:
----------------------------------------

[~renshangtao] I've downgraded to the priority to Major to match with Flink's Jira process https://cwiki.apache.org/confluence/display/FLINK/Flink+Jira+Process

> task manager can not free memory when jobs are finished caused the linux out of memory
> --------------------------------------------------------------------------------------
>
>                 Key: FLINK-26593
>                 URL: https://issues.apache.org/jira/browse/FLINK-26593
>             Project: Flink
>          Issue Type: Bug
>          Components: API / Core
>    Affects Versions: 1.14.3
>         Environment: The flink cluster environment with five nodes
> The iceberg is 0.13.1 for flink 1.14
> The hadoop is 3.3.1
> The hive is 3.1.2
>  
>  
> !image-2022-03-11-10-20-41-739.png!
>            Reporter: ren shangtao
>            Priority: Major
>         Attachments: image-2022-03-11-10-15-00-682.png, image-2022-03-11-10-16-00-438.png, image-2022-03-11-10-16-53-678.png, image-2022-03-11-10-18-32-940.png, image-2022-03-11-10-19-31-014.png, image-2022-03-11-10-20-41-739.png, image-2022-03-11-10-41-46-256.png
>
>
> I have A batch task that inserts 100 million data from table A into table B after the primary key hash. I use Flink standalone mode to execute this task. After several times of executing this task, I find that the Flink TaskManager process occupies more and more memory. Finally, the Flink TaskManager process is killed when the system runs out of memory.
>  
> {color:#FF0000}*Here is the message*{color}
> !image-2022-03-11-10-15-00-682.png!
>  
> {color:#FF0000}*Before run the job*{color}
> !image-2022-03-11-10-16-00-438.png!
>  
> *{color:#FF0000}After serval times{color}* 
> !image-2022-03-11-10-41-46-256.png!
>  
> My configuration
> !image-2022-03-11-10-18-32-940.png!
> !image-2022-03-11-10-19-31-014.png!



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