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https://issues.apache.org/jira/browse/KUDU-3760?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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Gabriella Lotz updated KUDU-3760:
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Summary: Add explicit --prefer_follower_replica_moves flag to CLI
rebalancer (was: Add explicit --avoid_leader_moves flag to CLI rebalancer)
> Add explicit --prefer_follower_replica_moves flag to CLI rebalancer
> -------------------------------------------------------------------
>
> Key: KUDU-3760
> URL: https://issues.apache.org/jira/browse/KUDU-3760
> Project: Kudu
> Issue Type: Sub-task
> Reporter: Gabriella Lotz
> Assignee: Gabriella Lotz
> Priority: Major
>
> {*}File{*}:
> {{{}[src/kudu/tools/rebalancer_tool.cc](src/kudu/tools/rebalancer_tool.cc){}}},
> {{IntraLocationRunner}}
> The CLI {{kudu rebalance}} tool now silently gets
> {{prefer_follower_moves=true}} because the constructor default changed
> (because of "avoid leader moves" optimization). Add a
> {{DEFINE_bool(rebalancing_avoid_leader_moves, true, ...)}} flag in the tool
> and plumb it to {{{}TwoDimensionalGreedyAlgo{}}}'s constructor. The default
> should match the new behavior (true) but make it explicit and overridable.
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