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https://issues.apache.org/jira/browse/FLINK-4140?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
]
Stefan Richter reassigned FLINK-4140:
-------------------------------------
Assignee: Stefan Richter
> CheckpointCoordinator fails to discard completed checkpoint
> -----------------------------------------------------------
>
> Key: FLINK-4140
> URL: https://issues.apache.org/jira/browse/FLINK-4140
> Project: Flink
> Issue Type: Bug
> Components: State Backends, Checkpointing
> Affects Versions: 1.0.3
> Reporter: Stefan Richter
> Assignee: Stefan Richter
>
> Running a job in HA mode I saw the following warning in the job manager logs.
> The warning appeared after the job was restarted due to a master failure.
> I've skimmed the code and it looks like the user code class loader is used
> everywhere when discarding the checkpoint, but something seems to not work as
> expected (otherwise the warning should not appear).
> {code}
> 2016-07-01 13:08:33,218 WARN
> org.apache.flink.runtime.checkpoint.SubtaskState - Failed to
> discard checkpoint state: StateForTask(Size: 4, Duration: 2012, State:
> SerializedValue)
> java.lang.ClassNotFoundException: da.testing.State
> at java.net.URLClassLoader$1.run(URLClassLoader.java:366)
> at java.net.URLClassLoader$1.run(URLClassLoader.java:355)
> at java.security.AccessController.doPrivileged(Native Method)
> at java.net.URLClassLoader.findClass(URLClassLoader.java:354)
> at java.lang.ClassLoader.loadClass(ClassLoader.java:425)
> at java.lang.ClassLoader.loadClass(ClassLoader.java:358)
> at java.lang.Class.forName0(Native Method)
> at java.lang.Class.forName(Class.java:278)
> at
> org.apache.flink.util.InstantiationUtil$ClassLoaderObjectInputStream.resolveClass(InstantiationUtil.java:64)
> at
> java.io.ObjectInputStream.readNonProxyDesc(ObjectInputStream.java:1620)
> at
> java.io.ObjectInputStream.readClassDesc(ObjectInputStream.java:1521)
> at java.io.ObjectInputStream.readClass(ObjectInputStream.java:1486)
> at java.io.ObjectInputStream.readObject0(ObjectInputStream.java:1336)
> at
> java.io.ObjectInputStream.defaultReadFields(ObjectInputStream.java:2016)
> at
> java.io.ObjectInputStream.readSerialData(ObjectInputStream.java:1940)
> at
> java.io.ObjectInputStream.readOrdinaryObject(ObjectInputStream.java:1806)
> at java.io.ObjectInputStream.readObject0(ObjectInputStream.java:1353)
> at
> java.io.ObjectInputStream.defaultReadFields(ObjectInputStream.java:2016)
> at
> java.io.ObjectInputStream.defaultReadObject(ObjectInputStream.java:503)
> at
> org.apache.flink.api.common.state.StateDescriptor.readObject(StateDescriptor.java:268)
> at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
> at
> sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:57)
> at
> sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)
> at java.lang.reflect.Method.invoke(Method.java:606)
> at
> java.io.ObjectStreamClass.invokeReadObject(ObjectStreamClass.java:1058)
> at
> java.io.ObjectInputStream.readSerialData(ObjectInputStream.java:1907)
> at
> java.io.ObjectInputStream.readOrdinaryObject(ObjectInputStream.java:1806)
> at java.io.ObjectInputStream.readObject0(ObjectInputStream.java:1353)
> at
> java.io.ObjectInputStream.defaultReadFields(ObjectInputStream.java:2016)
> at
> java.io.ObjectInputStream.readSerialData(ObjectInputStream.java:1940)
> at
> java.io.ObjectInputStream.readOrdinaryObject(ObjectInputStream.java:1806)
> at java.io.ObjectInputStream.readObject0(ObjectInputStream.java:1353)
> at java.io.ObjectInputStream.readObject(ObjectInputStream.java:373)
> at java.util.HashMap.readObject(HashMap.java:1180)
> at sun.reflect.GeneratedMethodAccessor5.invoke(Unknown Source)
> at
> sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)
> at java.lang.reflect.Method.invoke(Method.java:606)
> at
> java.io.ObjectStreamClass.invokeReadObject(ObjectStreamClass.java:1058)
> at
> java.io.ObjectInputStream.readSerialData(ObjectInputStream.java:1907)
> at
> java.io.ObjectInputStream.readOrdinaryObject(ObjectInputStream.java:1806)
> at java.io.ObjectInputStream.readObject0(ObjectInputStream.java:1353)
> at
> java.io.ObjectInputStream.defaultReadFields(ObjectInputStream.java:2016)
> at
> java.io.ObjectInputStream.readSerialData(ObjectInputStream.java:1940)
> at
> java.io.ObjectInputStream.readOrdinaryObject(ObjectInputStream.java:1806)
> at java.io.ObjectInputStream.readObject0(ObjectInputStream.java:1353)
> at java.io.ObjectInputStream.readArray(ObjectInputStream.java:1714)
> at java.io.ObjectInputStream.readObject0(ObjectInputStream.java:1347)
> at
> java.io.ObjectInputStream.defaultReadFields(ObjectInputStream.java:2016)
> at
> java.io.ObjectInputStream.readSerialData(ObjectInputStream.java:1940)
> at
> java.io.ObjectInputStream.readOrdinaryObject(ObjectInputStream.java:1806)
> at java.io.ObjectInputStream.readObject0(ObjectInputStream.java:1353)
> at java.io.ObjectInputStream.readObject(ObjectInputStream.java:373)
> at
> org.apache.flink.util.InstantiationUtil.deserializeObject(InstantiationUtil.java:290)
> at
> org.apache.flink.util.SerializedValue.deserializeValue(SerializedValue.java:58)
> at
> org.apache.flink.runtime.checkpoint.SubtaskState.discard(SubtaskState.java:86)
> at
> org.apache.flink.runtime.checkpoint.TaskState.discard(TaskState.java:147)
> at
> org.apache.flink.runtime.checkpoint.CompletedCheckpoint.discard(CompletedCheckpoint.java:102)
> at
> org.apache.flink.runtime.checkpoint.ZooKeeperCompletedCheckpointStore$1.processResult(ZooKeeperCompletedCheckpointStore.java:269)
> at
> org.apache.flink.shaded.org.apache.curator.framework.imps.CuratorFrameworkImpl.sendToBackgroundCallback(CuratorFrameworkImpl.java:728)
> at
> org.apache.flink.shaded.org.apache.curator.framework.imps.CuratorFrameworkImpl.processBackgroundOperation(CuratorFrameworkImpl.java:505)
> at
> org.apache.flink.shaded.org.apache.curator.framework.imps.NamespaceFacade.processBackgroundOperation(NamespaceFacade.java:118)
> at
> org.apache.flink.shaded.org.apache.curator.framework.imps.DeleteBuilderImpl$2.processResult(DeleteBuilderImpl.java:163)
> at
> org.apache.zookeeper.ClientCnxn$EventThread.processEvent(ClientCnxn.java:609)
> at
> org.apache.zookeeper.ClientCnxn$EventThread.run(ClientCnxn.java:498)
> {code}
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