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Posted to issues@zookeeper.apache.org by "Li Wang (Jira)" <ji...@apache.org> on 2020/11/20 01:28:00 UTC

[jira] [Created] (ZOOKEEPER-4009) Add Four-letter command to shed clients

Li Wang created ZOOKEEPER-4009:
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             Summary: Add Four-letter command to shed clients
                 Key: ZOOKEEPER-4009
                 URL: https://issues.apache.org/jira/browse/ZOOKEEPER-4009
             Project: ZooKeeper
          Issue Type: New Feature
            Reporter: Li Wang


In some circumstances, it is useful to ask a server to drop part (or all) of its client connections.

Those clients will treat this as a regular disconnection and will migrate to a different random ensemble servers.

Use cases include
 - Fixing client imbalance
 - Gradually shedding all clients before taking a server down for maintenance
 - Remove load from leader



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