Yingchun Lai has posted comments on this change. ( http://gerrit.cloudera.org:8080/12852 )
Change subject: [maintenance] Add privilege maintenance thread pool for privilege tables and tablets ...................................................................... Patch Set 1: The purpose of this feature is not only for more important user in multitenant use case, but also aim to reduce the negative influence of some tablets as quick as possible(the tablet may have more delta and RS overlaps, and more write and scan requests on it, which may cost more cpu, disk util, etc, which will pulled down the tserver performance). This feature is more likely to be use as a manual compact tool when I start to design it, gflags should be reset after some minitues when the tablet layout seems health. It seems not easy to confirm multiplier value, too high value will let other tablets less or no chance to be launched, and too low value may make no effect on the priority tablets. It's more general to use multiple priority levels, higher level has higher multiplier value. 'extra config' is useful if we can change it dynamically. -- To view, visit http://gerrit.cloudera.org:8080/12852 To unsubscribe, visit http://gerrit.cloudera.org:8080/settings Gerrit-Project: kudu Gerrit-Branch: master Gerrit-MessageType: comment Gerrit-Change-Id: I3ea3b73505157678a8fb551656123b64e6bfb304 Gerrit-Change-Number: 12852 Gerrit-PatchSet: 1 Gerrit-Owner: Yingchun Lai <[email protected]> Gerrit-Reviewer: Kudu Jenkins (120) Gerrit-Reviewer: Todd Lipcon <[email protected]> Gerrit-Reviewer: Will Berkeley <[email protected]> Gerrit-Reviewer: Yingchun Lai <[email protected]> Gerrit-Comment-Date: Tue, 26 Mar 2019 11:24:58 +0000 Gerrit-HasComments: No
