Hi, this problem looks like https://issues.apache.org/jira/browse/FLINK-8836 <https://issues.apache.org/jira/browse/FLINK-8836> which would also match to your Flink version. I suggest to update to 1.4.3 or higher to avoid the issue in the future.
Best, Stefan > Am 25.09.2018 um 16:37 schrieb Alexander Smirnov > <alexander.smirn...@gmail.com>: > > I'm getting an exception on job starting from a savepoint. Why that could > happen? > > Flink 1.4.2 > > > java.lang.IllegalStateException: Could not initialize operator state backend. > at > org.apache.flink.streaming.api.operators.AbstractStreamOperator.initOperatorState(AbstractStreamOperator.java:301) > at > org.apache.flink.streaming.api.operators.AbstractStreamOperator.initializeState(AbstractStreamOperator.java:248) > 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:748) > Caused by: java.lang.ArrayIndexOutOfBoundsException: -2 > at java.util.ArrayList.elementData(ArrayList.java:418) > at java.util.ArrayList.get(ArrayList.java:431) > at > com.esotericsoftware.kryo.util.MapReferenceResolver.getReadObject(MapReferenceResolver.java:42) > at com.esotericsoftware.kryo.Kryo.readReferenceOrNull(Kryo.java:805) > at com.esotericsoftware.kryo.Kryo.readClassAndObject(Kryo.java:759) > at > org.apache.flink.api.java.typeutils.runtime.kryo.KryoSerializer.deserialize(KryoSerializer.java:249) > at > org.apache.flink.api.java.typeutils.runtime.TupleSerializer.deserialize(TupleSerializer.java:136) > at > org.apache.flink.api.java.typeutils.runtime.TupleSerializer.deserialize(TupleSerializer.java:30) > at > org.apache.flink.runtime.state.DefaultOperatorStateBackend.deserializeStateValues(DefaultOperatorStateBackend.java:584) > at > org.apache.flink.runtime.state.DefaultOperatorStateBackend.restore(DefaultOperatorStateBackend.java:399) > at > org.apache.flink.streaming.runtime.tasks.StreamTask.createOperatorStateBackend(StreamTask.java:733) > at > org.apache.flink.streaming.api.operators.AbstractStreamOperator.initOperatorState(AbstractStreamOperator.java:299) > ... 6 more
