Yuqi Du has posted comments on this change. ( 
http://gerrit.cloudera.org:8080/19398 )

Change subject: [compaction] support turn on/off 
FLAGS_enable_maintenance_manager at runtime
......................................................................


Patch Set 2: -Code-Review

(4 comments)

> Patch Set 2:
>
> (4 comments)

I have fixed them according to your advices.
Thanks a lot.

http://gerrit.cloudera.org:8080/#/c/19398/1//COMMIT_MSG
Commit Message:

http://gerrit.cloudera.org:8080/#/c/19398/1//COMMIT_MSG@10
PS1, Line 10: But
            : restart tserver sometimes very slow.
> I understand. So, this change is just to add support to change FLAGS_enable
Yes, you are right.


http://gerrit.cloudera.org:8080/#/c/19398/2//COMMIT_MSG
Commit Message:

http://gerrit.cloudera.org:8080/#/c/19398/2//COMMIT_MSG@11
PS2, Line 11: tserver sometimes very slow
> nit: How about this. - "of a tablet server can sometimes be quite time cons
Done


http://gerrit.cloudera.org:8080/#/c/19398/2//COMMIT_MSG@13
PS2, Line 13: This patch support change FLAGS_enable_maintenance_manager at 
runtime, it
            : can avoid troublesome restart operation when administrators need 
do this.
> How about -
Done


http://gerrit.cloudera.org:8080/#/c/19398/2/src/kudu/util/maintenance_manager.cc
File src/kudu/util/maintenance_manager.cc:

http://gerrit.cloudera.org:8080/#/c/19398/2/src/kudu/util/maintenance_manager.cc@312
PS2, Line 312: if (shutdown_) {
             :         return;
             :       }
> shutdown_ check seems to be already present on line num 336 below.
What Yifan said, that's ok. I change it.

As Ashwanl said, L336 is not enough, because when  
FLAGS_enable_maintenance_manager is false, the thread 'RunSchedulerThread()' 
may not stop when shutdown.

The idea that moving L336 the beginning of 'while (true)',  I think that's ok.



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Gerrit-Project: kudu
Gerrit-Branch: master
Gerrit-MessageType: comment
Gerrit-Change-Id: I7f7029b22a4c8ce58094501e71a6c22271d4f0b2
Gerrit-Change-Number: 19398
Gerrit-PatchSet: 2
Gerrit-Owner: Yuqi Du <shenxingwuy...@gmail.com>
Gerrit-Reviewer: Alexey Serbin <ale...@apache.org>
Gerrit-Reviewer: Ashwani Raina <ara...@cloudera.com>
Gerrit-Reviewer: Kudu Jenkins (120)
Gerrit-Reviewer: Tidy Bot (241)
Gerrit-Reviewer: Yifan Zhang <chinazhangyi...@163.com>
Gerrit-Reviewer: Yingchun Lai <laiyingc...@apache.org>
Gerrit-Reviewer: Yuqi Du <shenxingwuy...@gmail.com>
Gerrit-Comment-Date: Thu, 02 Feb 2023 03:57:57 +0000
Gerrit-HasComments: Yes

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