[jira] [Commented] (FLINK-18712) Flink RocksDB statebackend memory leak issue

["Julius Michaelis (Jira)" <ji...@apache.org>]

    [ https://issues.apache.org/jira/browse/FLINK-18712?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=17186505#comment-17186505 ] 

Julius Michaelis commented on FLINK-18712:
------------------------------------------

@Farnight, have you tried setting {{state.backend.rocksdb.memory.managed: false}}, and checked whether it stops that behavior?

(I think I'm seeing something quite similar, I'll try to build a small reproducer next week.)

> Flink RocksDB statebackend memory leak issue 
> ---------------------------------------------
>
>                 Key: FLINK-18712
>                 URL: https://issues.apache.org/jira/browse/FLINK-18712
>             Project: Flink
>          Issue Type: Bug
>          Components: Runtime / State Backends
>    Affects Versions: 1.10.0
>            Reporter: Farnight
>            Priority: Critical
>
> When using RocksDB as our statebackend, we found it will lead to memory leak when restarting job (manually or in recovery case).
>  
> How to reproduce:
>  # increase RocksDB blockcache size(e.g. 1G), it is easier to monitor and reproduce.
>  # start a job using RocksDB statebackend.
>  # when the RocksDB blockcache reachs maximum size, restart the job. and monitor the memory usage (k8s pod working set) of the TM.
>  # go through step 2-3 few more times. and memory will keep raising.
>  
> Any solution or suggestion for this? Thanks!



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