Alexey Serbin has posted comments on this change. ( 
http://gerrit.cloudera.org:8080/24618 )

Change subject: KUDU-3734 Compaction budget refinements and observability
......................................................................


Patch Set 3:

(2 comments)

http://gerrit.cloudera.org:8080/#/c/24618/2/src/kudu/tablet/tablet_metrics.cc
File src/kudu/tablet/tablet_metrics.cc:

http://gerrit.cloudera.org:8080/#/c/24618/2/src/kudu/tablet/tablet_metrics.cc@447
PS2, Line 447:  A non-zero value is expected in "
             :   "normal operation; a persistent rising rat
> a persistent rising rate together with a high average_diskrowset_height or a 
> non-zero compaction_budget_skip_health  gauge may indicate the budget is too 
> restrictive

>From the user perspective, how can they gauge 'persistent rising rate'?  IIUC, 
>in a wide variety of workloads this metric will always rise because of skipped 
>rowsets that turned to be less preferable compared to others at a particular 
>pass of the algorithm.  Why to have such a metric then?  It pretends to 
>provide a good signal on attempts to overspend the compaction budget, but in 
>fact it's not.  I don't see value in adding such a noisy metric, but maybe I'm 
>missing something here.


http://gerrit.cloudera.org:8080/#/c/24618/3/src/kudu/tablet/tablet_metrics.cc
File src/kudu/tablet/tablet_metrics.cc:

http://gerrit.cloudera.org:8080/#/c/24618/3/src/kudu/tablet/tablet_metrics.cc@446
PS3, Line 446: , either
nit: this part seems to be stale after the recent update in PS3



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Gerrit-Project: kudu
Gerrit-Branch: master
Gerrit-MessageType: comment
Gerrit-Change-Id: Id63db0006c77ad1d55eb2119d99ee64499435819
Gerrit-Change-Number: 24618
Gerrit-PatchSet: 3
Gerrit-Owner: Ashwani Raina <[email protected]>
Gerrit-Reviewer: Alexey Serbin <[email protected]>
Gerrit-Reviewer: Ashwani Raina <[email protected]>
Gerrit-Reviewer: Kudu Jenkins (120)
Gerrit-Comment-Date: Sat, 01 Aug 2026 04:11:45 +0000
Gerrit-HasComments: Yes

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