Hi Jordan I created https://issues.apache.org/jira/browse/CURATOR-103
Thank you Best, Jae On Sat, Apr 12, 2014 at 11:01 AM, Jordan Zimmerman < [email protected]> wrote: > This looks like a bug in PathChildrenCache to me. I see an NPE there. > Please open an issue in Jira for this. > > -Jordan > > > From: Bae, Jae Hyeon [email protected] > Reply: [email protected] [email protected] > Date: April 9, 2014 at 12:55:51 PM > To: [email protected] [email protected] > Subject: curator-2.4.0 cannot recover connection loss > > Last night, I rolling-restarted zookeeper 3.4.5 to update configuration > and I saw curator-2.4.0 couldn't recover connection loss. > > 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) > > I am not sure this bug is on PathChildrenCache. > > I need to restart all instances using curator-2.4.0, which is really bad. > > Thank you > Best, Jae > >
