[jira] [Created] (FLINK-5996) Jobmanager HA should not crash on lost ZK node

[Shang Yuanchun (Jira)]

Gyula Fora created FLINK-5996:
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             Summary: Jobmanager HA should not crash on lost ZK node
                 Key: FLINK-5996
                 URL: https://issues.apache.org/jira/browse/FLINK-5996
             Project: Flink
          Issue Type: Bug
          Components: JobManager
    Affects Versions: 1.2.0
            Reporter: Gyula Fora


Even if there are multiple zk hosts configured the jobmanager crashes if one of them is lost:

org.apache.flink.shaded.org.apache.curator.CuratorConnectionLossException: KeeperErrorCode = ConnectionLoss
        at org.apache.flink.shaded.org.apache.curator.ConnectionState.checkTimeouts(ConnectionState.java:197)
        at org.apache.flink.shaded.org.apache.curator.ConnectionState.getZooKeeper(ConnectionState.java:87)
        at org.apache.flink.shaded.org.apache.curator.CuratorZookeeperClient.getZooKeeper(CuratorZookeeperClient.java:115)
        at org.apache.flink.shaded.org.apache.curator.framework.imps.CuratorFrameworkImpl.getZooKeeper(CuratorFrameworkImpl.java:477)
        at org.apache.flink.shaded.org.apache.curator.framework.imps.GetDataBuilderImpl$4.call(GetDataBuilderImpl.java:302)
        at org.apache.flink.shaded.org.apache.curator.framework.imps.GetDataBuilderImpl$4.call(GetDataBuilderImpl.java:291)
        at org.apache.flink.shaded.org.apache.curator.RetryLoop.callWithRetry(RetryLoop.java:107)
        at org.apache.flink.shaded.org.apache.curator.framework.imps.GetDataBuilderImpl.pathInForeground(GetDataBuilderImpl.java:288)
        at org.apache.flink.shaded.org.apache.curator.framework.imps.GetDataBuilderImpl.forPath(GetDataBuilderImpl.java:279)
        at org.apache.flink.shaded.org.apache.curator.framework.imps.GetDataBuilderImpl.forPath(GetDataBuilderImpl.java:41)
        at org.apache.flink.shaded.org.apache.curator.framework.recipes.shared.SharedValue.readValue(SharedValue.java:244)
        at org.apache.flink.shaded.org.apache.curator.framework.recipes.shared.SharedValue.access$100(SharedValue.java:44)
        at org.apache.flink.shaded.org.apache.curator.framework.recipes.shared.SharedValue$1.process(SharedValue.java:61)
        at org.apache.flink.shaded.org.apache.curator.framework.imps.NamespaceWatcher.process(NamespaceWatcher.java:67)
        at org.apache.zookeeper.ClientCnxn$EventThread.processEvent(ClientCnxn.java:522)
        at org.apache.zookeeper.ClientCnxn$EventThread.run(ClientCnxn.java:498)

We should have some retry logic there



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