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Posted to dev@curator.apache.org by "Jay Bae (JIRA)" <ji...@apache.org> on 2014/04/12 20:52:14 UTC
[jira] [Created] (CURATOR-103) NPE in PathChildrenCache
Jay Bae created CURATOR-103:
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Summary: NPE in PathChildrenCache
Key: CURATOR-103
URL: https://issues.apache.org/jira/browse/CURATOR-103
Project: Apache Curator
Issue Type: Bug
Components: Recipes
Affects Versions: 2.4.0
Reporter: Jay Bae
On ConnectionLoss, PathChildrenCache cannot recover the connection with the following NPE
ERROR 2014-04-09 17:48:15,231 [DaemonThreadFactory-2-thread-2] org.apache.curator.framework.imps.CuratorFrameworkImpl: Background retry gave up
org.apache.curator.CuratorConnectionLossException: KeeperErrorCode = ConnectionLoss
at org.apache.curator.framework.imps.CuratorFrameworkImpl.performBackgroundOperation(CuratorFrameworkImpl.java:766)
at org.apache.curator.framework.imps.CuratorFrameworkImpl.backgroundOperationsLoop(CuratorFrameworkImpl.java:749)
at org.apache.curator.framework.imps.CuratorFrameworkImpl.access$300(CuratorFrameworkImpl.java:56)
at org.apache.curator.framework.imps.CuratorFrameworkImpl$3.call(CuratorFrameworkImpl.java:244)
at java.util.concurrent.FutureTask$Sync.innerRun(FutureTask.java:334)
at java.util.concurrent.FutureTask.run(FutureTask.java:166)
at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1145)
at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:615)
at java.lang.Thread.run(Thread.java:724)
INFO 2014-04-09 17:48:15,276 [ServerInventoryView-0-EventThread] org.apache.curator.framework.state.ConnectionStateManager: State change: RECONNECTED
INFO 2014-04-09 17:48:15,382 [ServerInventoryView-0-EventThread] org.apache.curator.framework.state.ConnectionStateManager: State change: SUSPENDED
ERROR 2014-04-09 17:48:15,748 [DaemonThreadFactory-2-thread-2] org.apache.curator.framework.imps.CuratorFrameworkImpl: Background exception was not retry-able or retry gave up
java.lang.NullPointerException
at com.google.common.base.Preconditions.checkNotNull(Preconditions.java:191)
at com.google.common.collect.Lists$TransformingSequentialList.<init>(Lists.java:527)
at com.google.common.collect.Lists.transform(Lists.java:510)
at org.apache.curator.framework.recipes.cache.PathChildrenCache.processChildren(PathChildrenCache.java:635)
at org.apache.curator.framework.recipes.cache.PathChildrenCache.access$200(PathChildrenCache.java:68)
at org.apache.curator.framework.recipes.cache.PathChildrenCache$4.processResult(PathChildrenCache.java:476)
at org.apache.curator.framework.imps.CuratorFrameworkImpl.sendToBackgroundCallback(CuratorFrameworkImpl.java:686)
at org.apache.curator.framework.imps.CuratorFrameworkImpl.checkBackgroundRetry(CuratorFrameworkImpl.java:659)
at org.apache.curator.framework.imps.CuratorFrameworkImpl.performBackgroundOperation(CuratorFrameworkImpl.java:783)
at org.apache.curator.framework.imps.CuratorFrameworkImpl.backgroundOperationsLoop(CuratorFrameworkImpl.java:749)
at org.apache.curator.framework.imps.CuratorFrameworkImpl.access$300(CuratorFrameworkImpl.java:56)
at org.apache.curator.framework.imps.CuratorFrameworkImpl$3.call(CuratorFrameworkImpl.java:244)
at java.util.concurrent.FutureTask$Sync.innerRun(FutureTask.java:334)
at java.util.concurrent.FutureTask.run(FutureTask.java:166)
at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1145)
at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:615)
at java.lang.Thread.run(Thread.java:724)
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