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https://issues.apache.org/jira/browse/KUDU-2914?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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YifanZhang updated KUDU-2914:
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Description: When we need to remove some tservers from a kudu cluster
(maybe just for saving resources or replacing these servers with new servers),
it's better to move all replicas on these tservers to other tservers in a
cluster in advance, instead of waiting for master kick out . This can be
achieved by rebalance tool to support specifying 'blacklist_tservers'. (was:
When we need to stop/upgrade some tablet servers in a kudu cluster, these
tservers would become unavailable and tablets on these servers would be
unhealthy in a period of time. In order to ensure the high availability of the
cluster, it's better to move all replicas on these tservers to other tservers
in a cluster, then stop or upgrade tservers. This can be achieved by rebalance
tool to support specifying 'blacklist_tservers'.)
> Rebalance tool support moving replicas from some specific tablet servers
> ------------------------------------------------------------------------
>
> Key: KUDU-2914
> URL: https://issues.apache.org/jira/browse/KUDU-2914
> Project: Kudu
> Issue Type: Improvement
> Components: CLI
> Reporter: YifanZhang
> Priority: Minor
>
> When we need to remove some tservers from a kudu cluster (maybe just for
> saving resources or replacing these servers with new servers), it's better to
> move all replicas on these tservers to other tservers in a cluster in
> advance, instead of waiting for master kick out . This can be achieved by
> rebalance tool to support specifying 'blacklist_tservers'.
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