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From "clive du (JIRA)" <j...@apache.org>
Subject [jira] [Updated] (CURATOR-325) Background retry falls into infinite loop of SessionExpiredException
Date Fri, 20 May 2016 07:22:12 GMT

     [ https://issues.apache.org/jira/browse/CURATOR-325?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
]

clive du updated CURATOR-325:
-----------------------------
    Environment: sun java jdk 1.7.0_55, curator 2.9.1, zookeeper 3.4.6  (was: sun java jdk
1.7.0_55, curator 2.9.2, zookeeper 3.4.6)

> Background retry falls into infinite loop of SessionExpiredException
> --------------------------------------------------------------------
>
>                 Key: CURATOR-325
>                 URL: https://issues.apache.org/jira/browse/CURATOR-325
>             Project: Apache Curator
>          Issue Type: Bug
>          Components: Client
>    Affects Versions: 2.9.1, 2.10.0
>         Environment: sun java jdk 1.7.0_55, curator 2.9.1, zookeeper 3.4.6
>            Reporter: clive du
>              Labels: SessionExpiredException, loop
>
> after long time gc pause,which longer than zookeeper session time,the zookeeper cluster
invalidate the session id holding by the client and waiting the client to reconnect,but client
consider the  SessionExpiredException as retry exception and re-put to the background queue,so
wo get the stacktrace infinitely.
> 12:50:54.337 [configuration-0-EventThread] DEBUG org.apache.curator.RetryLoop - Retrying
operation
> 12:50:54.337 [configuration-0-EventThread] DEBUG org.apache.curator.RetryLoop - Retry-able
exception received
> org.apache.zookeeper.KeeperException$SessionExpiredException: KeeperErrorCode = Session
expired for /dynamic/apps/258741001/DEV
>     at org.apache.zookeeper.KeeperException.create(KeeperException.java:127) ~[zookeeper-3.4.6.jar:3.4.6-1569965]
>     at org.apache.zookeeper.KeeperException.create(KeeperException.java:51) ~[zookeeper-3.4.6.jar:3.4.6-1569965]
>     at org.apache.zookeeper.ZooKeeper.getData(ZooKeeper.java:1155) ~[zookeeper-3.4.6.jar:3.4.6-1569965]
>     at org.apache.curator.framework.imps.GetDataBuilderImpl$4.call(GetDataBuilderImpl.java:304)
~[curator-framework-2.10.0.jar:na]
>     at org.apache.curator.framework.imps.GetDataBuilderImpl$4.call(GetDataBuilderImpl.java:293)
~[curator-framework-2.10.0.jar:na]
>     at org.apache.curator.RetryLoop.callWithRetry(RetryLoop.java:108) ~[curator-client-2.10.0.jar:na]
>     at org.apache.curator.framework.imps.GetDataBuilderImpl.pathInForeground(GetDataBuilderImpl.java:290)
[curator-framework-2.10.0.jar:na]
>     at org.apache.curator.framework.imps.GetDataBuilderImpl.forPath(GetDataBuilderImpl.java:281)
[curator-framework-2.10.0.jar:na]
>     at org.apache.curator.framework.imps.GetDataBuilderImpl$1.forPath(GetDataBuilderImpl.java:105)
[curator-framework-2.10.0.jar:na]
>     at org.apache.curator.framework.imps.GetDataBuilderImpl$1.forPath(GetDataBuilderImpl.java:65)
[curator-framework-2.10.0.jar:na]
>     at com.ctrip.flight.configuration.client.AbstractZookeeperClient.getData(AbstractZookeeperClient.java:68)
[classes/:na]
>     at com.ctrip.flight.configuration.client.ZooKeeperConfigurationSource.getPublishNodeValue(ZooKeeperConfigurationSource.java:258)
[classes/:na]
>     at com.ctrip.flight.configuration.client.ZooKeeperConfigurationSource.access$100(ZooKeeperConfigurationSource.java:45)
[classes/:na]
>     at com.ctrip.flight.configuration.client.ZooKeeperConfigurationSource$1.nodeChanged(ZooKeeperConfigurationSource.java:105)
[classes/:na]
>     at org.apache.curator.framework.recipes.cache.NodeCache$4.apply(NodeCache.java:310)
[curator-recipes-2.10.0.jar:na]
>     at org.apache.curator.framework.recipes.cache.NodeCache$4.apply(NodeCache.java:304)
[curator-recipes-2.10.0.jar:na]
>     at org.apache.curator.framework.listen.ListenerContainer$1.run(ListenerContainer.java:93)
[curator-framework-2.10.0.jar:na]
>     at com.google.common.util.concurrent.MoreExecutors$DirectExecutorService.execute(MoreExecutors.java:310)
[guava-19.0.jar:na]
>     at org.apache.curator.framework.listen.ListenerContainer.forEach(ListenerContainer.java:85)
[curator-framework-2.10.0.jar:na]
>     at org.apache.curator.framework.recipes.cache.NodeCache.setNewData(NodeCache.java:302)
[curator-recipes-2.10.0.jar:na]
>     at org.apache.curator.framework.recipes.cache.NodeCache.processBackgroundResult(NodeCache.java:269)
[curator-recipes-2.10.0.jar:na]
>     at org.apache.curator.framework.recipes.cache.NodeCache.access$300(NodeCache.java:56)
[curator-recipes-2.10.0.jar:na]
>     at org.apache.curator.framework.recipes.cache.NodeCache$3.processResult(NodeCache.java:122)
[curator-recipes-2.10.0.jar:na]
>     at org.apache.curator.framework.imps.CuratorFrameworkImpl.sendToBackgroundCallback(CuratorFrameworkImpl.java:749)
[curator-framework-2.10.0.jar:na]
>     at org.apache.curator.framework.imps.CuratorFrameworkImpl.processBackgroundOperation(CuratorFrameworkImpl.java:522)
[curator-framework-2.10.0.jar:na]
>     at org.apache.curator.framework.imps.GetDataBuilderImpl$3.processResult(GetDataBuilderImpl.java:256)
[curator-framework-2.10.0.jar:na]
>     at org.apache.zookeeper.ClientCnxn$EventThread.processEvent(ClientCnxn.java:561)
[zookeeper-3.4.6.jar:3.4.6-1569965]
>     at org.apache.zookeeper.ClientCnxn$EventThread.run(ClientCnxn.java:498) [zookeeper-3.4.6.jar:3.4.6-1569965]



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