Our Community is getting an upgrade! To get everything ready for the relaunch, we’ll be placing the site in read-only mode starting September 21st.
We really appreciate your understanding while we get things set up behind the scenes. Catch up on all the exciting details about the move here.
Need help or have questions? Drop us a line at [email protected]

Archives of Support Questions (Read Only)

This is an archived board for historical reference. Information and links may no longer be available or relevant
Announcements
This board is archived and read-only for historical reference. To ask a new question, please post a new topic on the appropriate active board.

Why Storm cluster keeps on giving KeeperException$ConnectionLossException after running for some time

avatar

I have deployed storm cluster with 3 zookeeper node and 1 nimbus 2 supervisor .After running for some time nimbus and supervisor stops and gives

java.lang.RuntimeException: org.apache.storm.shade.org.apache.zookeeper.KeeperException$ConnectionLossException: KeeperErrorCode = ConnectionLoss for /supervisors at org.apache.storm.util$wrap_in_runtime.invoke(util.clj:54) at org.apache.storm.zookeeper$exists_node_QMARK_$fn__2091.invoke(zookeeper.clj:108) at org.apache.storm.zookeeper$exists_node_QMARK_.invoke(zookeeper.clj:104) at org.apache.storm.zookeeper$mkdirs.invoke(zookeeper.clj:124) at org.apache.storm.cluster_state.zookeeper_state_factory$_mkState$reify__11321.set_ephemeral_node(zookeeper_state_factory.clj:75) at sun.reflect.GeneratedMethodAccessor31.invoke(Unknown Source) at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43) at java.lang.reflect.Method.invoke(Method.java:498) at clojure.lang.Reflector.invokeMatchingMethod(Reflector.java:93) at clojure.lang.Reflector.invokeInstanceMethod(Reflector.java:28) at org.apache.storm.cluster$mk_storm_cluster_state$reify__3756.supervisor_heartbeat_BANG_(cluster.clj:528) at sun.reflect.GeneratedMethodAccessor30.invoke(Unknown Source) at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43) at java.lang.reflect.Method.invoke(Method.java:498) at clojure.lang.Reflector.invokeMatchingMethod(Reflector.java:93) at clojure.lang.Reflector.invokeInstanceMethod(Reflector.java:28) at org.apache.storm.daemon.supervisor$fn__9230$exec_fn__2461__auto____9231$heartbeat_fn__9233.invoke(supervisor.clj:790) at org.apache.storm.timer$schedule_recurring$this__6183.invoke(timer.clj:105) at org.apache.storm.timer$mk_timer$fn__6166$fn__6167.invoke(timer.clj:50) at org.apache.storm.timer$mk_timer$fn__6166.invoke(timer.clj:42) at clojure.lang.AFn.run(AFn.java:22) at java.lang.Thread.run(Thread.java:745) Caused by: org.apache.storm.shade.org.apache.zookeeper.KeeperException$ConnectionLossException: KeeperErrorCode = ConnectionLoss for /supervisors at org.apache.storm.shade.org.apache.zookeeper.KeeperException.create(KeeperException.java:99) at org.apache.storm.shade.org.apache.zookeeper.KeeperException.create(KeeperException.java:51) at org.apache.storm.shade.org.apache.zookeeper.ZooKeeper.exists(ZooKeeper.java:1045) at org.apache.storm.shade.org.apache.curator.framework.imps.ExistsBuilderImpl$3.call(ExistsBuilderImpl.java:226) at org.apache.storm.shade.org.apache.curator.framework.imps.ExistsBuilderImpl$3.call(ExistsBuilderImpl.java:215) at org.apache.storm.shade.org.apache.curator.RetryLoop.callWithRetry(RetryLoop.java:108) at org.apache.storm.shade.org.apache.curator.framework.imps.ExistsBuilderImpl.pathInForegroundStandard(ExistsBuilderImpl.java:212) at org.apache.storm.shade.org.apache.curator.framework.imps.ExistsBuilderImpl.pathInForeground(ExistsBuilderImpl.java:205) at org.apache.storm.shade.org.apache.curator.framework.imps.ExistsBuilderImpl.forPath(ExistsBuilderImpl.java:168) at org.apache.storm.shade.org.apache.curator.framework.imps.ExistsBuilderImpl.forPath(ExistsBuilderImpl.java:39) at org.apache.storm.zookeeper$exists_node_QMARK_$fn__2091.invoke(zookeeper.clj:107) ... 20 more 2016-07-08 11:10:49.100 o.a.s.event [ERROR] Error when processing event java.lang.RuntimeException: org.apache.storm.shade.org.apache.zookeeper.KeeperException$ConnectionLossException: KeeperErrorCode = ConnectionLoss for /assignments at org.apache.storm.util$wrap_in_runtime.invoke(util.clj:54) at org.apache.storm.zookeeper$get_children.invoke(zookeeper.clj:187) at org.apache.storm.cluster_state.zookeeper_state_factory$_mkState$reify__11321.get_children(zookeeper_state_factory.clj:127) at sun.reflect.GeneratedMethodAccessor33.invoke(Unknown Source) at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43) at java.lang.reflect.Method.invoke(Method.java:498) at clojure.lang.Reflector.invokeMatchingMethod(Reflector.java:93) at clojure.lang.Reflector.invokeInstanceMethod(Reflector.java:28) at org.apache.storm.cluster$mk_storm_cluster_state$reify__3756.assignments(cluster.clj:290) at sun.reflect.GeneratedMethodAccessor32.invoke(Unknown Source) at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43) at java.lang.reflect.Method.invoke(Method.java:498) at clojure.lang.Reflector.invokeMatchingMethod(Reflector.java:93) at clojure.lang.Reflector.invokeInstanceMethod(Reflector.java:28) at org.apache.storm.daemon.supervisor$assignments_snapshot.invoke(supervisor.clj:61) at org.apache.storm.daemon.supervisor$mk_synchronize_supervisor$this__9078.invoke(supervisor.clj:549) at org.apache.storm.event$event_manager$fn__8630.invoke(event.clj:40) at clojure.lang.AFn.run(AFn.java:22) at java.lang.Thread.run(Thread.java:745) Caused by: org.apache.storm.shade.org.apache.zookeeper.KeeperException$ConnectionLossException: KeeperErrorCode = ConnectionLoss for /assignments at org.apache.storm.shade.org.apache.zookeeper.KeeperException.create(KeeperException.java:99) at org.apache.storm.shade.org.apache.zookeeper.KeeperException.create(KeeperException.java:51) at org.apache.storm.shade.org.apache.zookeeper.ZooKeeper.getChildren(ZooKeeper.java:1590) at org.apache.storm.shade.org.apache.zookeeper.ZooKeeper.getChildren(ZooKeeper.java:1625) at org.apache.storm.shade.org.apache.curator.framework.imps.GetChildrenBuilderImpl$3.call(GetChildrenBuilderImpl.java:210) at org.apache.storm.shade.org.apache.curator.framework.imps.GetChildrenBuilderImpl$3.call(GetChildrenBuilderImpl.java:203) at org.apache.storm.shade.org.apache.curator.RetryLoop.callWithRetry(RetryLoop.java:108) at org.apache.storm.shade.org.apache.curator.framework.imps.GetChildrenBuilderImpl.pathInForeground(GetChildrenBuilderImpl.java:200) at org.apache.storm.shade.org.apache.curator.framework.imps.GetChildrenBuilderImpl.forPath(GetChildrenBuilderImpl.java:191) at org.apache.storm.shade.org.apache.curator.framework.imps.GetChildrenBuilderImpl.forPath(GetChildrenBuilderImpl.java:38) at sun.reflect.GeneratedMethodAccessor29.invoke(Unknown Source) at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43) at java.lang.reflect.Method.invoke(Method.java:498) at clojure.lang.Reflector.invokeMatchingMethod(Reflector.java:93) at clojure.lang.Reflector.invokeInstanceMethod(Reflector.java:28) at org.apache.storm.zookeeper$get_children.invoke(zookeeper.clj:185)

1 ACCEPTED SOLUTION

avatar
2 REPLIES 2

avatar

avatar

Thank you Rahul ,

This solution worked for me .