[Bug]: MO oom during stability test

[aressu1985]

Is there an existing issue for the same bug?

• I have checked the existing issues.

Environment

- Version or commit-id (e.g. v0.1.0 or 8b23a93):0.6.0
- Hardware parameters:
- OS type:
- Others:

Actual Behavior

The mo was killed by oom when executing stability test
the test is as followings:
1、bvt test loop run, 1000 times
2、tpch（0.5G） query loop run ，1000 times
3、tp mixed cases run，20 hours

and nearly 12 hours after test start，the mo oom：
[74218.421881] [ 559341] 0 559341 19144 225 303104 0 0 sshd
[74218.421884] [ 559344] 0 559344 8586 39 151552 0 0 sshd
[74218.421886] oom-kill:constraint=CONSTRAINT_NONE,nodemask=(null),cpuset=/,mems_allowed=0-1,global_oom,task_memcg=/user.slice/user-1029.slice/session-16.scope,task=mo-service,pid=68923,uid=1029
[74218.422002] Out of memory: Killed process 68923 (mo-service) total-vm:277634136kB, anon-rss:251547972kB, file-rss:0kB, shmem-rss:0kB, UID:1029 pgtables:530216kB oom_score_adj:0
[74223.476360] oom_reaper: reaped process 68923 (mo-service), now anon-rss:0kB, file-rss:0kB, shmem-rss:0kB

Expected Behavior

No response

Steps to Reproduce

No response

Additional information

No response

[yingfeng]

Dedicated issue to track OOM, will continuously track in 0.7

[yingfeng]

Remove S0 temporarily and need to reassign after restarting

[nnsgmsone]

same as #7613

[aressu1985]

tracking for one more day

[nnsgmsone]

no process

[nnsgmsone]

no process

[nnsgmsone]

no process

[nnsgmsone]

no process

[nnsgmsone]

I will give a plan to take care of the memory problem.

[fengttt]

Taking this off from S-1. @nnsgmsone has his grand plan of addressing this in a general, systematic way.

[aressu1985]

I closed this , and tracked it with #8327