java.lang.RuntimeException: ** org.apache.storm.shade.org.apache.zookeeper.KeeperException$ConnectionLossException: KeeperErrorCode = ConnectionLoss for /assignments

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    why storm cluster keep on shutdown after some time giving KeeperException$ConnectionLossException Exception

    Stack Overflow | 9 months ago | Sidharth Mishra
    java.lang.RuntimeException: ** org.apache.storm.shade.org.apache.zookeeper.KeeperException$ConnectionLossException: KeeperErrorCode = ConnectionLoss for /assignments

    1 unregistered visitors

    Root Cause Analysis

    1. org.apache.storm.shade.org.apache.zookeeper.KeeperException$ConnectionLossException

      KeeperErrorCode = ConnectionLoss for /assignments

      at org.apache.storm.shade.org.apache.zookeeper.KeeperException.create()
    2. org.apache.storm
      GetChildrenBuilderImpl.forPath
      1. org.apache.storm.shade.org.apache.zookeeper.KeeperException.create(KeeperException.java:99)
      2. org.apache.storm.shade.org.apache.zookeeper.KeeperException.create(KeeperException.java:51)
      3. org.apache.storm.shade.org.apache.zookeeper.ZooKeeper.getChildren(ZooKeeper.java:1590)
      4. org.apache.storm.shade.org.apache.zookeeper.ZooKeeper.getChildren(ZooKeeper.java:1625)
      5. org.apache.storm.shade.org.apache.curator.framework.imps.GetChildrenBuilderImpl$3.call(GetChildrenBuilderImpl.java:210)
      6. org.apache.storm.shade.org.apache.curator.framework.imps.GetChildrenBuilderImpl$3.call(GetChildrenBuilderImpl.java:203)
      7. org.apache.storm.shade.org.apache.curator.RetryLoop.callWithRetry(RetryLoop.java:108)
      8. org.apache.storm.shade.org.apache.curator.framework.imps.GetChildrenBuilderImpl.pathInForeground(GetChildrenBuilderImpl.java:200)
      9. org.apache.storm.shade.org.apache.curator.framework.imps.GetChildrenBuilderImpl.forPath(GetChildrenBuilderImpl.java:191)
      10. org.apache.storm.shade.org.apache.curator.framework.imps.GetChildrenBuilderImpl.forPath(GetChildrenBuilderImpl.java:38)
      10 frames
    3. Java RT
      Method.invoke
      1. sun.reflect.GeneratedMethodAccessor29.invoke(Unknown Source)
      2. sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)
      3. java.lang.reflect.Method.invoke(Method.java:498)
      3 frames
    4. Clojure
      Reflector.invokeInstanceMethod
      1. clojure.lang.Reflector.invokeMatchingMethod(Reflector.java:93)
      2. clojure.lang.Reflector.invokeInstanceMethod(Reflector.java:28)
      2 frames
    5. org.apache.storm
      zookeeper$get_children.invoke
      1. org.apache.storm.zookeeper$get_children.invoke(zookeeper.clj:185)
      1 frame