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Posted to dev@flink.apache.org by "Kai Chen (Jira)" <ji...@apache.org> on 2020/06/09 02:45:00 UTC
[jira] [Created] (FLINK-18196) flink throws `NullPointerException`
when executeCheckpointing
Kai Chen created FLINK-18196:
--------------------------------
Summary: flink throws `NullPointerException` when executeCheckpointing
Key: FLINK-18196
URL: https://issues.apache.org/jira/browse/FLINK-18196
Project: Flink
Issue Type: Bug
Components: Runtime / Checkpointing
Affects Versions: 1.10.1, 1.10.0
Reporter: Kai Chen
I meet checkpoint NPE when executing wordcount example:
java.lang.Exception: Could not perform checkpoint 5505 for operator Source: KafkaTableSource(xxx) -> SourceConversion(table=[xxx, source: [KafkaTableSource(xxx)]], fields=[xxx]) -> Calc(select=[xxx) AS xxx]) -> SinkConversionToTuple2 -> Sink: Elasticsearch6UpsertTableSink(xxx) (1/1).
at org.apache.flink.streaming.runtime.tasks.StreamTask.triggerCheckpoint(StreamTask.java:802)
at org.apache.flink.streaming.runtime.tasks.StreamTask.lambda$triggerCheckpointAsync$3(StreamTask.java:777)
at org.apache.flink.streaming.runtime.tasks.StreamTask$$Lambda$228/1024478318.call(Unknown Source)
at java.util.concurrent.FutureTask.run(FutureTask.java:266)
at org.apache.flink.streaming.runtime.tasks.StreamTaskActionExecutor$SynchronizedStreamTaskActionExecutor.run(StreamTaskActionExecutor.java:87)
at org.apache.flink.streaming.runtime.tasks.mailbox.Mail.run(Mail.java:78)
at org.apache.flink.streaming.runtime.tasks.mailbox.MailboxProcessor.processMail(MailboxProcessor.java:261)
at org.apache.flink.streaming.runtime.tasks.mailbox.MailboxProcessor.runMailboxLoop(MailboxProcessor.java:186)
at org.apache.flink.streaming.runtime.tasks.StreamTask.runMailboxLoop(StreamTask.java:487)
at org.apache.flink.streaming.runtime.tasks.StreamTask.invoke(StreamTask.java:470)
at org.apache.flink.runtime.taskmanager.Task.doRun(Task.java:707)
at org.apache.flink.runtime.taskmanager.Task.run(Task.java:532)
at java.lang.Thread.run(Thread.java:745)
Caused by: java.lang.NullPointerException
at org.apache.flink.streaming.runtime.tasks.StreamTask$CheckpointingOperation.executeCheckpointing(StreamTask.java:1411)
at org.apache.flink.streaming.runtime.tasks.StreamTask.checkpointState(StreamTask.java:991)
at org.apache.flink.streaming.runtime.tasks.StreamTask.lambda$performCheckpoint$5(StreamTask.java:887)
at org.apache.flink.streaming.runtime.tasks.StreamTask$$Lambda$229/1010499540.run(Unknown Source)
at org.apache.flink.streaming.runtime.tasks.StreamTaskActionExecutor$SynchronizedStreamTaskActionExecutor.runThrowing(StreamTaskActionExecutor.java:94)
at org.apache.flink.streaming.runtime.tasks.StreamTask.performCheckpoint(StreamTask.java:860)
at org.apache.flink.streaming.runtime.tasks.StreamTask.triggerCheckpoint(StreamTask.java:793)
... 12 more
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