[jira] [Created] (ZOOKEEPER-3717) Zookeeper won't work with swarm service VIP when enabling healthcheck

["Baohua (Jira)" <ji...@apache.org>]

Baohua created ZOOKEEPER-3717:
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             Summary: Zookeeper won't work with swarm service VIP when enabling healthcheck
                 Key: ZOOKEEPER-3717
                 URL: https://issues.apache.org/jira/browse/ZOOKEEPER-3717
             Project: ZooKeeper
          Issue Type: Bug
    Affects Versions: 3.5.6, 3.4.14, 3.5.5, 3.5.4, 3.5.3, 3.5.2, 3.5.1
            Reporter: Baohua


Issue:

When use swarm service to create a zookeeper cluster with service VIP and enable healthcheck in the zookeeper docker image (even directly return 0), the client cannot connect to the server (status is connecting, and then retry), but the server status will report everything is OK.

Root cause:

When swarm service is started, the service VIP does not work until the healthcheck is passed. At that time, seems the client service is in an abnormal status that even after healthcheck is passed, and the zookeeper cluster is normal, no client can connect to the zookeeper.

Solution (potential):

After the cluster status becomes OK, need to reset the client service to allow connection.



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