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:

(2 comments)

Good advices. Thank you.

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.
> Is this slowness because of maintenance ops?
The problem 'tserver bootstrap slowly' does not matter with maintenance ops.

This is another problem, its main reason:  replaying LMB' metadata/data and 
replaying wals.
I mean the problem may cause some other maintenance cost.

eg, the patch: https://gerrit.cloudera.org/c/18569/, it's purpuse is that speed 
tserver's bootstrap


http://gerrit.cloudera.org:8080/#/c/19398/1/src/kudu/util/maintenance_manager.cc
File src/kudu/util/maintenance_manager.cc:

http://gerrit.cloudera.org:8080/#/c/19398/1/src/kudu/util/maintenance_manager.cc@312
PS1, Line 312:       if (shutdown_) {
> It would be nice if you give advice how to enable it, like how we do in htt
Done



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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 <[email protected]>
Gerrit-Reviewer: Ashwani Raina <[email protected]>
Gerrit-Reviewer: Kudu Jenkins (120)
Gerrit-Reviewer: Tidy Bot (241)
Gerrit-Reviewer: Yingchun Lai <[email protected]>
Gerrit-Reviewer: Yuqi Du <[email protected]>
Gerrit-Comment-Date: Fri, 13 Jan 2023 10:49:26 +0000
Gerrit-HasComments: Yes

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