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

["ren shangtao (Jira)" <ji...@apache.org>]

ren shangtao created FLINK-26593:
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             Summary: 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
         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

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.

 

Here is the message
!image-2022-03-11-10-15-00-682.png!
 
before run the job
!image-2022-03-11-10-16-00-438.png!
 
after serval times 
!image-2022-03-11-10-16-53-678.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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