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https://issues.apache.org/jira/browse/STORM-180?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13855694#comment-13855694
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Robert Joseph Evans commented on STORM-180:
-------------------------------------------
For a ZK quorum to be met you need to have more then 50% of the servers up and
available. This is a ZK feature. If you want to file a JIRA under ZOOKEEPER
or CURATOR that would be the correct place for this error message to come out.
From the storm perspective we have little knowledge as to why curator threw the
exception. I suppose we could try to do some detective work after we get the
exception, but curator seems like a better place to do that.
> Nimbus fails to start In case of non-worked zookeeper server specifed in
> config
> -------------------------------------------------------------------------------
>
> Key: STORM-180
> URL: https://issues.apache.org/jira/browse/STORM-180
> Project: Apache Storm (Incubating)
> Issue Type: Bug
> Environment: Storm 0.9.0.1
> Reporter: Alexander Yerenkow
> Labels: nimbus, zookeeper
>
> For example, If I specify three servers in config for zookeeper, and any of
> them not working during
> `storm nimbus`
> then nimbus fails to start at all -
> Can this be avoided somehow?
> If one of zookeeper servers failed, then I had to reconfigure all storm
> instances to simply start it and connect to working zk servers.
> Backtrace:
> 2013-12-20 14:08:08 b.s.d.nimbus [ERROR] Error on initialization of server
> service-handler
> java.lang.RuntimeException:
> org.apache.zookeeper.KeeperException$ConnectionLossException: KeeperErrorCode
> = ConnectionLoss
> at backtype.storm.util$wrap_in_runtime.invoke(util.clj:28)
> ~[storm-core-0.9.0.1.jar:na]
> at
> backtype.storm.zookeeper$exists_node_QMARK_$fn__991.invoke(zookeeper.clj:82)
> ~[storm-core-0.9.0.1.jar:na]
> at
> backtype.storm.zookeeper$exists_node_QMARK_.invoke(zookeeper.clj:78)
> ~[storm-core-0.9.0.1.jar:na]
> at backtype.storm.zookeeper$mkdirs.invoke(zookeeper.clj:92)
> ~[storm-core-0.9.0.1.jar:na]
> at
> backtype.storm.cluster$mk_distributed_cluster_state.invoke(cluster.clj:26)
> ~[storm-core-0.9.0.1.jar:na]
> at
> backtype.storm.cluster$mk_storm_cluster_state.invoke(cluster.clj:201)
> ~[storm-core-0.9.0.1.jar:na]
> at backtype.storm.daemon.nimbus$nimbus_data.invoke(nimbus.clj:51)
> ~[storm-core-0.9.0.1.jar:na]
> at
> backtype.storm.daemon.nimbus$fn__5528$exec_fn__1229__auto____5529.invoke(nimbus.clj:884)
> ~[storm-core-0.9.0.1.jar:na]
> at clojure.lang.AFn.applyToHelper(AFn.java:163)
> ~[clojure-1.4.0.jar:na]
> at clojure.lang.AFn.applyTo(AFn.java:151) ~[clojure-1.4.0.jar:na]
> at clojure.core$apply.invoke(core.clj:601) ~[clojure-1.4.0.jar:na]
> at
> backtype.storm.daemon.nimbus$fn__5528$service_handler__5616.doInvoke(nimbus.clj:881)
> ~[storm-core-0.9.0.1.jar:na]
> at clojure.lang.RestFn.invoke(RestFn.java:421) ~[clojure-1.4.0.jar:na]
> at
> backtype.storm.daemon.nimbus$launch_server_BANG_.invoke(nimbus.clj:1136)
> ~[storm-core-0.9.0.1.jar:na]
> at backtype.storm.daemon.nimbus$_launch.invoke(nimbus.clj:1167)
> ~[storm-core-0.9.0.1.jar:na]
> at backtype.storm.daemon.nimbus$_main.invoke(nimbus.clj:1189)
> ~[storm-core-0.9.0.1.jar:na]
> at clojure.lang.AFn.applyToHelper(AFn.java:159)
> ~[clojure-1.4.0.jar:na]
> at clojure.lang.AFn.applyTo(AFn.java:151) ~[clojure-1.4.0.jar:na]
> at backtype.storm.daemon.nimbus.main(Unknown Source)
> ~[storm-core-0.9.0.1.jar:na]
> Caused by: org.apache.zookeeper.KeeperException$ConnectionLossException:
> KeeperErrorCode = ConnectionLoss
> at
> com.netflix.curator.ConnectionState.getZooKeeper(ConnectionState.java:72)
> ~[curator-client-1.0.1.jar:na]
> at
> com.netflix.curator.CuratorZookeeperClient.getZooKeeper(CuratorZookeeperClient.java:74)
> ~[curator-client-1.0.1.jar:na]
> at
> com.netflix.curator.framework.imps.CuratorFrameworkImpl.getZooKeeper(CuratorFrameworkImpl.java:353)
> ~[curator-framework-1.0.1.jar:na]
> at
> com.netflix.curator.framework.imps.ExistsBuilderImpl$2.call(ExistsBuilderImpl.java:149)
> ~[curator-framework-1.0.1.jar:na]
> at
> com.netflix.curator.framework.imps.ExistsBuilderImpl$2.call(ExistsBuilderImpl.java:138)
> ~[curator-framework-1.0.1.jar:na]
> at com.netflix.curator.RetryLoop.callWithRetry(RetryLoop.java:85)
> ~[curator-client-1.0.1.jar:na]
> at
> com.netflix.curator.framework.imps.ExistsBuilderImpl.pathInForeground(ExistsBuilderImpl.java:134)
> ~[curator-framework-1.0.1.jar:na]
> at
> com.netflix.curator.framework.imps.ExistsBuilderImpl.forPath(ExistsBuilderImpl.java:125)
> ~[curator-framework-1.0.1.jar:na]
> at
> com.netflix.curator.framework.imps.ExistsBuilderImpl.forPath(ExistsBuilderImpl.java:34)
> ~[curator-framework-1.0.1.jar:na]
> at
> backtype.storm.zookeeper$exists_node_QMARK_$fn__991.invoke(zookeeper.clj:81)
> ~[storm-core-0.9.0.1.jar:na]
> ... 17 common frames omitted
> 2013-12-20 14:08:08 b.s.util [INFO] Halting process: ("Error on
> initialization")
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