[jira] [Closed] (FLINK-18733) Jobmanager cannot start in HA mode with Zookeeper

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

     [ https://issues.apache.org/jira/browse/FLINK-18733?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]

Till Rohrmann closed FLINK-18733.
---------------------------------
    Resolution: Workaround

> Jobmanager cannot start in HA mode with Zookeeper
> -------------------------------------------------
>
>                 Key: FLINK-18733
>                 URL: https://issues.apache.org/jira/browse/FLINK-18733
>             Project: Flink
>          Issue Type: Bug
>          Components: Runtime / Coordination
>    Affects Versions: 1.11.1
>            Reporter: Leonid Ilyevsky
>            Priority: Major
>         Attachments: flink-conf.yaml, flink-liquidnt-standalonesession-0-nj1dvloglab01.liquidnet.biz.log, flink-liquidnt-taskexecutor-0-nj1dvloglab01.liquidnet.biz.log
>
>
> When configured in HA mode, the Jobmanager cannot start at all. First, it issues warnings like this:
> {quote}{{2020-07-27 08:58:23,197 WARN org.apache.flink.shaded.zookeeper3.org.apache.zookeeper.ClientCnxn [] - Session 0x0 for server *nj1dvloglab01.liquidnet.biz/<unresolved>:2181*, unexpected error, closing socket connection and attempting reconnect}}
>  {{java.lang.IllegalArgumentException: *Unable to canonicalize address* nj1dvloglab01.liquidnet.biz/<unresolved>:2181 because it's not resolvable}}
>  {{ at org.apache.flink.shaded.zookeeper3.org.apache.zookeeper.SaslServerPrincipal.getServerPrincipal(SaslServerPrincipal.java:65) ~[flink-shaded-zookeeper-3.4.14.jar:3.4.14-11.0]}}
>  {{ at org.apache.flink.shaded.zookeeper3.org.apache.zookeeper.SaslServerPrincipal.getServerPrincipal(SaslServerPrincipal.java:41) ~[flink-shaded-zookeeper-3.4.14.jar:3.4.14-11.0]}}
>  {{ at org.apache.flink.shaded.zookeeper3.org.apache.zookeeper.ClientCnxn$SendThread.startConnect(ClientCnxn.java:1001) ~[flink-shaded-zookeeper-3.4.14.jar:3.4.14-11.0]}}
>  {{ at org.apache.flink.shaded.zookeeper3.org.apache.zookeeper.ClientCnxn$SendThread.run(ClientCnxn.java:1060) [flink-shaded-zookeeper-3.4.14.jar:3.4.14-11.0]}}
> {quote}
> After few attempts connecting to Zookeeper, it finally fails:
> {quote}2020-07-27 08:59:35,055 ERROR org.apache.flink.runtime.entrypoint.ClusterEntrypoint [] - Fatal error occurred in the cluster entrypoint.
>  org.apache.flink.util.FlinkException: Unhandled error in ZooKeeperLeaderElectionService: Ensure path threw exception
>  at org.apache.flink.runtime.leaderelection.ZooKeeperLeaderElectionService.unhandledError(ZooKeeperLeaderElectionService.java:430) ~[flink-dist_2.12-1.11.1.jar:1.11.1]
> {quote}
>  
> The same HA configuration works fine for me in Flink 1.10.0.
>  



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