补充部分信息：
看日志，如果是 flink savepoint xxx 这样触发检查点，JM的日志很简单：
2022-08-23 20:33:22,307 INFO
org.apache.flink.runtime.jobmaster.JobMaster [] -
Triggering savepoint for job 8d231de75b8227a1b
715b1aa665caa91.
2022-08-23 20:33:22,318 INFO
org.apache.flink.runtime.checkpoint.CheckpointCoordinator [] -
Triggering checkpoint 5 (type=SavepointType{na
me='Savepoint', postCheckpointAction=NONE, formatType=CANONICAL}) @
1661258002307 for job 8d231de75b8227a1b715b1aa665caa91.
2022-08-23 20:33:23,701 INFO
org.apache.flink.runtime.state.filesystem.FsCheckpointMetadataOutputStream
[] - Cannot create recoverable writer
due to Recoverable writers on Hadoop are only supported for HDFS,
will use the ordinary writer.
2022-08-23 20:33:23,908 INFO
org.apache.flink.runtime.checkpoint.CheckpointCoordinator [] -
Completed checkpoint 5 for job 8d231de75b8227a1b715b1aa665caa91
(1638207 bytes, checkpointDuration=1600 ms, finalizationTime=1 ms).
如果是 stop xxx 这样停止任务，则JM日志（错误）如下：
2022-08-23 20:35:01,834 INFO
org.apache.flink.runtime.jobmaster.JobMaster [] -
Triggering stop-with-savepoint for job
8d231de75b8227a1b715b1aa665caa91.
2022-08-23 20:35:01,842 INFO
org.apache.flink.runtime.checkpoint.CheckpointCoordinator [] -
Triggering checkpoint 6 (type=SavepointType{name='Suspend Savepoint',
postCheckpointAction=SUSPEND, formatType=CANONICAL}) @ 1661258101834
for job 8d231de75b8227a1b715b1aa665caa91.
2022-08-23 20:35:02,083 INFO
org.apache.flink.runtime.checkpoint.CheckpointCoordinator [] -
Decline checkpoint 6 by task a65383dad01bc15f654c4afe4aa63b6d of job
8d231de75b8227a1b715b1aa665caa91 at 10.35.95.150:13151-3dfdc5 @
xxx.xxx.com (dataPort=13156).
（此处看起来是被decline了，原因是 task failed？）
org.apache.flink.util.SerializedThrowable: Task name with subtask :
Source: XXX_Kafka(startTs:latest) ->... ->... ->... (10/10)#2 Failure
reason: Task has failed.
at
org.apache.flink.runtime.taskmanager.Task.declineCheckpoint(Task.java:1388)
~[flink-dist-1.15.1.jar:1.15.1]
at
org.apache.flink.runtime.taskmanager.Task.lambda$triggerCheckpointBarrier$3(Task.java:1331)
~[flink-dist-1.15.1.jar:1.15.1]
at
java.util.concurrent.CompletableFuture.uniHandle(CompletableFuture.java:836)
~[?:1.8.0_251]
at
java.util.concurrent.CompletableFuture$UniHandle.tryFire(CompletableFuture.java:811)
~[?:1.8.0_251]
at
java.util.concurrent.CompletableFuture.postComplete(CompletableFuture.java:488)
~[?:1.8.0_251]
at
java.util.concurrent.CompletableFuture.completeExceptionally(CompletableFuture.java:1990)
~[?:1.8.0_251]
at
org.apache.flink.streaming.runtime.tasks.SourceStreamTask$LegacySourceFunctionThread.run(SourceStreamTask.java:343)
~[flink-dist-1.15.1.jar:1.15.1]
Caused by: org.apache.flink.util.SerializedThrowable:
org.apache.flink.streaming.connectors.kafka.internals.Handover$ClosedException
at
java.util.concurrent.CompletableFuture.encodeThrowable(CompletableFuture.java:292)
~[?:1.8.0_251]
at
java.util.concurrent.CompletableFuture.completeThrowable(CompletableFuture.java:308)
~[?:1.8.0_251]
at
java.util.concurrent.CompletableFuture.uniCompose(CompletableFuture.java:957)
~[?:1.8.0_251]
at
java.util.concurrent.CompletableFuture$UniCompose.tryFire(CompletableFuture.java:940)
~[?:1.8.0_251]
... 3 more
Caused by: org.apache.flink.util.SerializedThrowable
at
org.apache.flink.streaming.connectors.kafka.internals.Handover.close(Handover.java:177)
~[?:?]
at
org.apache.flink.streaming.connectors.kafka.internals.KafkaFetcher.cancel(KafkaFetcher.java:164)
~[?:?]
at
org.apache.flink.streaming.connectors.kafka.FlinkKafkaConsumerBase.cancel(FlinkKafkaConsumerBase.java:1002)
~[?:?]
at
org.apache.flink.streaming.api.operators.StreamSource.stop(StreamSource.java:128)
~[flink-dist-1.15.1.jar:1.15.1]
at
org.apache.flink.streaming.runtime.tasks.SourceStreamTask.stopOperatorForStopWithSavepoint(SourceStreamTask.java:305)
~[flink-dist-1.15.1.jar:1.15.1]
at
org.apache.flink.streaming.runtime.tasks.SourceStreamTask.lambda$triggerStopWithSavepointAsync$1(SourceStreamTask.java:285)
~[flink-dist-1.15.1.jar:1.15.1]
at
org.apache.flink.streaming.runtime.tasks.StreamTaskActionExecutor$SynchronizedStreamTaskActionExecutor.runThrowing(StreamTaskActionExecutor.java:93)
~[flink-dist-1.15.1.jar:1.15.1]
at
org.apache.flink.streaming.runtime.tasks.mailbox.Mail.run(Mail.java:90)
~[flink-dist-1.15.1.jar:1.15.1]
at
org.apache.flink.streaming.runtime.tasks.mailbox.MailboxProcessor.processMailsWhenDefaultActionUnavailable(MailboxProcessor.java:338)
~[flink-dist-1.15.1.jar:1.15.1]
at
org.apache.flink.streaming.runtime.tasks.mailbox.MailboxProcessor.processMail(MailboxProcessor.java:324)
~[flink-dist-1.15.1.jar:1.15.1]
at
org.apache.flink.streaming.runtime.tasks.mailbox.MailboxProcessor.runMailboxLoop(MailboxProcessor.java:201)
~[flink-dist-1.15.1.jar:1.15.1]
at
org.apache.flink.streaming.runtime.tasks.StreamTask.runMailboxLoop(StreamTask.java:804)
~[flink-dist-1.15.1.jar:1.15.1]
at
org.apache.flink.streaming.runtime.tasks.StreamTask.invoke(StreamTask.java:753)
~[flink-dist-1.15.1.jar:1.15.1]
at
org.apache.flink.runtime.taskmanager.Task.runWithSystemExitMonitoring(Task.java:948)
~[flink-dist-1.15.1.jar:1.15.1]
at
org.apache.flink.runtime.taskmanager.Task.restoreAndInvoke(Task.java:927)
~[flink-dist-1.15.1.jar:1.15.1]
at org.apache.flink.runtime.taskmanager.Task.doRun(Task.java:741)
~[flink-dist-1.15.1.jar:1.15.1]
at org.apache.flink.runtime.taskmanager.Task.run(Task.java:563)
~[flink-dist-1.15.1.jar:1.15.1]
at java.lang.Thread.run(Thread.java:748) [?:1.8.0_251]
yidan zhao <hinobl...@gmail.com> 于2022年8月23日周二 20:31写道：
>
> 如题，stop，停止并保存检查点失败。
> 测试看 cancel、cancel -s 方式都成功。 cancel -s 可成功生成检查点并退出。
>
> stop则不行，报错主要是
> Could not stop with a savepoint job "1b87f308e2582f3cc0e3ccc812471201"
> ...
> Caused by: java.util.concurrent.ExecutionException:
> java.util.concurrent.CompletionException:
> org.apache.flink.runtime.checkpoint.CheckpointEx
> ception: Task has failed.
> ...
> Caused by: org.apache.flink.util.SerializedThrowable:
> org.apache.flink.runtime.checkpoint.CheckpointException: Task has
> failed.
> ...
> Caused by: org.apache.flink.util.SerializedThrowable: Task has failed.
> ...
>
> ______详细日志：
