Alexey Serbin created KUDU-2688:
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Summary: LA rebalancer tries to amend non-fixable policy
violations in case of RF=2 and three and more locations
Key: KUDU-2688
URL: https://issues.apache.org/jira/browse/KUDU-2688
Project: Kudu
Issue Type: Bug
Components: CLI
Affects Versions: 1.8.0
Reporter: Alexey Serbin
In case of RF=2 and more than two locations, the logic of the LA rebalancer
suggests a fix for the distribution of replicas, and the rebalancer loops
indefinitely trying to implement the suggested replica movements.
However, RF=2 is a special case: any replica distribution of a tablet with RF=2
is a violations of the placement policy constraints and it's impossible to fix
that, regardless of number of locations in the cluster.
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