Alexey Serbin has submitted this change and it was merged. ( http://gerrit.cloudera.org:8080/24683 )
Change subject: KUDU-3761 prefer follower moves cross-location ...................................................................... KUDU-3761 prefer follower moves cross-location LocationBalancingAlgo had no follower awareness: it picked the first equally most-loaded source in its internal order. Moving a leader triggers a leadership transfer that can disrupt clients. Apply the same two-candidate pattern TwoDimensionalGreedyAlgo uses: among sources tied on load, prefer one that hosts a non-leader replica of the target table+tag, falling back to any tied source when none qualifies. Extend --prefer_follower_replica_moves and --auto_rebalancing_prefer_follower_replica_moves to cover the cross-location path too. Change-Id: I8a162a227071caf37d572ba60c2bc49608d14e65 Reviewed-on: http://gerrit.cloudera.org:8080/24683 Reviewed-by: Ashwani Raina <[email protected]> Reviewed-by: Alexey Serbin <[email protected]> Tested-by: Alexey Serbin <[email protected]> --- M src/kudu/master/auto_rebalancer.cc M src/kudu/rebalance/rebalance_algo-test.cc M src/kudu/rebalance/rebalance_algo.cc M src/kudu/rebalance/rebalance_algo.h M src/kudu/tools/rebalancer_tool.cc 5 files changed, 156 insertions(+), 9 deletions(-) Approvals: Ashwani Raina: Looks good to me, approved Alexey Serbin: Looks good to me, approved; Verified -- To view, visit http://gerrit.cloudera.org:8080/24683 To unsubscribe, visit http://gerrit.cloudera.org:8080/settings Gerrit-Project: kudu Gerrit-Branch: master Gerrit-MessageType: merged Gerrit-Change-Id: I8a162a227071caf37d572ba60c2bc49608d14e65 Gerrit-Change-Number: 24683 Gerrit-PatchSet: 7 Gerrit-Owner: Gabriella Lotz <[email protected]> Gerrit-Reviewer: Abhishek Chennaka <[email protected]> Gerrit-Reviewer: Alexey Serbin <[email protected]> Gerrit-Reviewer: Ashwani Raina <[email protected]> Gerrit-Reviewer: Gabriella Lotz <[email protected]> Gerrit-Reviewer: Kudu Jenkins (120) Gerrit-Reviewer: Zoltan Martonka <[email protected]>
