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Posted to issues@flink.apache.org by "Bowen Li (JIRA)" <ji...@apache.org> on 2017/09/24 01:24:00 UTC
[jira] [Assigned] (FLINK-7674) NullPointerException in
ContinuousFileMonitoringFunction close
[ https://issues.apache.org/jira/browse/FLINK-7674?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]
Bowen Li reassigned FLINK-7674:
-------------------------------
Assignee: Bowen Li
> NullPointerException in ContinuousFileMonitoringFunction close
> --------------------------------------------------------------
>
> Key: FLINK-7674
> URL: https://issues.apache.org/jira/browse/FLINK-7674
> Project: Flink
> Issue Type: Bug
> Components: Streaming Connectors
> Affects Versions: 1.4.0
> Reporter: Ufuk Celebi
> Assignee: Bowen Li
> Priority: Minor
>
> If the ContinuousFileMonitoringFunction is closed before run is called (because initialization fails), we get a NullPointerException, because checkpointLock has not been set.
> {code}
> synchronized (checkpointLock) {
> globalModificationTime = Long.MAX_VALUE;
> isRunning = false;
> }
> {code}
> This results in a follow up error log:
> {code}
> 2017-09-23 10:25:04,096 ERROR org.apache.flink.streaming.runtime.tasks.StreamTask - Error during disposal of stream operator.
> java.lang.NullPointerException
> at org.apache.flink.streaming.api.functions.source.ContinuousFileMonitoringFunction.close(ContinuousFileMonitoringFunction.java:337)
> at org.apache.flink.api.common.functions.util.FunctionUtils.closeFunction(FunctionUtils.java:43)
> at org.apache.flink.streaming.api.operators.AbstractUdfStreamOperator.dispose(AbstractUdfStreamOperator.java:126)
> at org.apache.flink.streaming.runtime.tasks.StreamTask.disposeAllOperators(StreamTask.java:429)
> at org.apache.flink.streaming.runtime.tasks.StreamTask.invoke(StreamTask.java:334)
> at org.apache.flink.runtime.taskmanager.Task.run(Task.java:702)
> at java.lang.Thread.run(Thread.java:748)
> {code}
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