Alexey Serbin has submitted this change and it was merged. ( http://gerrit.cloudera.org:8080/25005 )
Change subject: [auto_rebalancer] enforce per-server move cap ...................................................................... [auto_rebalancer] enforce per-server move cap The auto-rebalancer never enforced its per-server move cap. It budgeted a whole batch at max_moves_per_server * num_tservers and checked moves_per_tserver_, which is empty at selection time, so one batch could pile many moves onto a single server (the most loaded one, which the cap exists to protect). Track per-server move counts within the batch and skip a move once either endpoint reaches the cap. Add MaxMovesPerServerEnforcedWithinOneBatch, which is red before this change: a 6-move batch puts 3 moves on one server with the cap at 1. Change-Id: I9f6b9b200c24d215435329a37e953d75fe923c02 Co-authored-by: Cursor <[email protected]> Reviewed-on: http://gerrit.cloudera.org:8080/25005 Reviewed-by: Alexey Serbin <[email protected]> Tested-by: Alexey Serbin <[email protected]> --- M src/kudu/master/auto_leader_rebalancer-test.cc M src/kudu/master/auto_rebalancer-test.cc M src/kudu/master/auto_rebalancer.cc 3 files changed, 123 insertions(+), 14 deletions(-) Approvals: Alexey Serbin: Looks good to me, approved; Verified -- To view, visit http://gerrit.cloudera.org:8080/25005 To unsubscribe, visit http://gerrit.cloudera.org:8080/settings Gerrit-Project: kudu Gerrit-Branch: master Gerrit-MessageType: merged Gerrit-Change-Id: I9f6b9b200c24d215435329a37e953d75fe923c02 Gerrit-Change-Number: 25005 Gerrit-PatchSet: 6 Gerrit-Owner: Gabriella Lotz <[email protected]> Gerrit-Reviewer: Abhishek Chennaka <[email protected]> Gerrit-Reviewer: Alexey Serbin <[email protected]> Gerrit-Reviewer: Gabriella Lotz <[email protected]> Gerrit-Reviewer: Kudu Jenkins (120) Gerrit-Reviewer: Marton Greber <[email protected]> Gerrit-Reviewer: Zoltan Chovan <[email protected]>
