Ashwani Raina has posted comments on this change. ( http://gerrit.cloudera.org:8080/24618 )
Change subject: KUDU-3734 Compaction budget refinements and observability ...................................................................... Patch Set 6: > +1, just asking out of curiosity: > So what is the proper human intervention when metrics indicate that > compaction is starting to fall apart on a cluster under constant > load? > Set --rowset_undo_deltas_budget_weight to smaller than 1.0, and > hope that there is still no OOM? It needs to be case-by-case basis. If the metrics indicate that reducing the weight is going to help with a short-term goal of successful rowset compaction with little to no impact on scan (given the metrics to detect slow scans), then yes. If there is already considerable impact on scans due to 'rowset_deltas_size_include_undo=true', user may decide to disable it to allow old behavior to proceed with increased possibility of OOM. The goal here is to add metrics to understand impact on scans when cluster has 'rowset_deltas_size_include_undo=true', and take appropriate action accordingly. -- To view, visit http://gerrit.cloudera.org:8080/24618 To unsubscribe, visit http://gerrit.cloudera.org:8080/settings Gerrit-Project: kudu Gerrit-Branch: master Gerrit-MessageType: comment Gerrit-Change-Id: Id63db0006c77ad1d55eb2119d99ee64499435819 Gerrit-Change-Number: 24618 Gerrit-PatchSet: 6 Gerrit-Owner: Ashwani Raina <[email protected]> Gerrit-Reviewer: Alexey Serbin <[email protected]> Gerrit-Reviewer: Ashwani Raina <[email protected]> Gerrit-Reviewer: Kudu Jenkins (120) Gerrit-Reviewer: Marton Greber <[email protected]> Gerrit-Reviewer: Zoltan Martonka <[email protected]> Gerrit-Comment-Date: Wed, 26 Aug 2026 13:41:42 +0000 Gerrit-HasComments: No
