[FLINK-8319] Savepoint restore failing in CEP

• Type: Bug
• Status: Closed
• Priority: Major
• Resolution: Duplicate
• Affects Version/s: 1.4.0
• Component/s: Deployment / YARN, Library / CEP, Runtime / State Backends

Environment

Yarn Cluster

• Assignee: Unassigned
• Reporter: Shashank Agarwal
• Created: 26/Dec/17 08:51
• Updated: 24/Jan/18 12:14
• Resolved: 24/Jan/18 12:14

Description

I have reported some bugs before also in 1.3.2 but this time error is different while restoring savepoint or checkpoint.

https://issues.apache.org/jira/browse/FLINK-7760

java.lang.IllegalStateException: Could not initialize keyed state backend.
	at org.apache.flink.streaming.api.operators.AbstractStreamOperator.initKeyedState(AbstractStreamOperator.java:293)
	at org.apache.flink.streaming.api.operators.AbstractStreamOperator.initializeState(AbstractStreamOperator.java:225)
	at org.apache.flink.streaming.runtime.tasks.StreamTask.initializeOperators(StreamTask.java:692)
	at org.apache.flink.streaming.runtime.tasks.StreamTask.initializeState(StreamTask.java:679)
	at org.apache.flink.streaming.runtime.tasks.StreamTask.invoke(StreamTask.java:253)
	at org.apache.flink.runtime.taskmanager.Task.run(Task.java:718)
	at java.lang.Thread.run(Thread.java:745)
Caused by: java.io.InvalidClassException: org.apache.flink.cep.scala.pattern.Pattern$$anon$3; invalid descriptor for field 
	at java.io.ObjectStreamClass.readNonProxy(ObjectStreamClass.java:723)
	at java.io.ObjectInputStream.readClassDescriptor(ObjectInputStream.java:833)
	at java.io.ObjectInputStream.readNonProxyDesc(ObjectInputStream.java:1609)
	at java.io.ObjectInputStream.readClassDesc(ObjectInputStream.java:1521)
	at java.io.ObjectInputStream.readOrdinaryObject(ObjectInputStream.java:1781)
	at java.io.ObjectInputStream.readObject0(ObjectInputStream.java:1353)
	at java.io.ObjectInputStream.readObject(ObjectInputStream.java:373)
	at org.apache.flink.cep.nfa.NFA$NFASerializer.deserializeCondition(NFA.java:1171)
	at org.apache.flink.cep.nfa.NFA$NFASerializer.deserializeStates(NFA.java:1129)
	at org.apache.flink.cep.nfa.NFA$NFASerializer.deserialize(NFA.java:917)
	at org.apache.flink.cep.nfa.NFA$NFASerializer.deserialize(NFA.java:820)
	at org.apache.flink.runtime.state.heap.StateTableByKeyGroupReaders$StateTableByKeyGroupReaderV2V3.readMappingsInKeyGroup(StateTableByKeyGroupReaders.java:133)
	at org.apache.flink.runtime.state.heap.HeapKeyedStateBackend.restorePartitionedState(HeapKeyedStateBackend.java:575)
	at org.apache.flink.runtime.state.heap.HeapKeyedStateBackend.restore(HeapKeyedStateBackend.java:446)
	at org.apache.flink.streaming.runtime.tasks.StreamTask.createKeyedStateBackend(StreamTask.java:773)
	at org.apache.flink.streaming.api.operators.AbstractStreamOperator.initKeyedState(AbstractStreamOperator.java:283)
	... 6 more
Caused by: java.lang.IllegalArgumentException: illegal signature
	at java.io.ObjectStreamField.<init>(ObjectStreamField.java:122)
	at java.io.ObjectStreamClass.readNonProxy(ObjectStreamClass.java:721)
	... 21 more