[ https://issues.apache.org/jira/browse/FLINK-3339?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]
Aljoscha Krettek resolved FLINK-3339. ------------------------------------- Resolution: Fixed Fix Version/s: 1.0.0 Resolved in https://github.com/apache/flink/commit/7469c17cb9004873101622ca4cc19f95b8d79642 > Checkpointing NPE when using filterWithState > -------------------------------------------- > > Key: FLINK-3339 > URL: https://issues.apache.org/jira/browse/FLINK-3339 > Project: Flink > Issue Type: Bug > Reporter: Shikhar Bhushan > Assignee: Aljoscha Krettek > Fix For: 1.0.0 > > > (1.0-SNAPSHOT) > I am using the Scala API keyedStream.filterWithState(..), where the state is > an Option[Long] > I am seeing the following error which goes away if I remove the filter. > {noformat} > 02/04/2016 14:10:19 Job execution switched to status FAILING. > java.lang.RuntimeException: Error triggering a checkpoint as the result of > receiving checkpoint barrier > at > org.apache.flink.streaming.runtime.tasks.StreamTask$2.onEvent(StreamTask.java:651) > at > org.apache.flink.streaming.runtime.tasks.StreamTask$2.onEvent(StreamTask.java:644) > at > org.apache.flink.streaming.runtime.io.BarrierBuffer.processBarrier(BarrierBuffer.java:201) > at > org.apache.flink.streaming.runtime.io.BarrierBuffer.getNextNonBlocked(BarrierBuffer.java:127) > at > org.apache.flink.streaming.runtime.io.StreamInputProcessor.processInput(StreamInputProcessor.java:173) > at > org.apache.flink.streaming.runtime.tasks.OneInputStreamTask.run(OneInputStreamTask.java:63) > at > org.apache.flink.streaming.runtime.tasks.StreamTask.invoke(StreamTask.java:218) > at org.apache.flink.runtime.taskmanager.Task.run(Task.java:562) > at java.lang.Thread.run(Thread.java:745) > Caused by: java.lang.NullPointerException > at > org.apache.flink.api.common.typeutils.base.LongSerializer.serialize(LongSerializer.java:63) > at > org.apache.flink.api.common.typeutils.base.LongSerializer.serialize(LongSerializer.java:27) > at > org.apache.flink.runtime.state.memory.AbstractMemState.snapshot(AbstractMemState.java:74) > at > org.apache.flink.runtime.state.AbstractStateBackend.snapshotPartitionedState(AbstractStateBackend.java:245) > at > org.apache.flink.streaming.api.operators.AbstractStreamOperator.snapshotOperatorState(AbstractStreamOperator.java:174) > at > org.apache.flink.streaming.api.operators.AbstractUdfStreamOperator.snapshotOperatorState(AbstractUdfStreamOperator.java:119) > at > org.apache.flink.streaming.runtime.tasks.StreamTask.triggerCheckpoint(StreamTask.java:470) > at > org.apache.flink.streaming.runtime.tasks.StreamTask$2.onEvent(StreamTask.java:648) > ... 8 more > {noformat} -- This message was sent by Atlassian JIRA (v6.3.4#6332)