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Posted to issues@flink.apache.org by "ASF GitHub Bot (Jira)" <ji...@apache.org> on 2021/09/03 02:44:00 UTC
[jira] [Updated] (FLINK-24068) CheckpointBarrierHandler may skip
the markAlignmentStart for alignment -with-timeout checkpoint
[ https://issues.apache.org/jira/browse/FLINK-24068?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]
ASF GitHub Bot updated FLINK-24068:
-----------------------------------
Labels: pull-request-available (was: )
> CheckpointBarrierHandler may skip the markAlignmentStart for alignment -with-timeout checkpoint
> -----------------------------------------------------------------------------------------------
>
> Key: FLINK-24068
> URL: https://issues.apache.org/jira/browse/FLINK-24068
> Project: Flink
> Issue Type: Sub-task
> Components: Runtime / Checkpointing
> Affects Versions: 1.14.0
> Reporter: Yun Gao
> Assignee: Yun Gao
> Priority: Critical
> Labels: pull-request-available
> Fix For: 1.14.0
>
>
> {code:java}
> 04:51:11,727 [Flat Map -> Sink: Unnamed (10/12)#1] WARN org.apache.flink.runtime.taskmanager.Task [] - Flat Map -> Sink: Unnamed (10/12)#1 (0d965fd3c0de11dc7fb6793435cda8ba) switched from RUNNING to FAILED with failure cause: java.lang.IllegalStateException: Alignment time is less than zero({}). Is the time monotonic? [-9223369873401849363]
> at org.apache.flink.util.Preconditions.checkState(Preconditions.java:215)
> at org.apache.flink.streaming.runtime.io.checkpointing.CheckpointBarrierHandler.markAlignmentEnd(CheckpointBarrierHandler.java:181)
> at org.apache.flink.streaming.runtime.io.checkpointing.CheckpointBarrierHandler.markAlignmentEnd(CheckpointBarrierHandler.java:177)
> at org.apache.flink.streaming.runtime.io.checkpointing.SingleCheckpointBarrierHandler.checkCheckpointAlignedAndTransformState(SingleCheckpointBarrierHandler.java:253)
> at org.apache.flink.streaming.runtime.io.checkpointing.SingleCheckpointBarrierHandler.processBarrier(SingleCheckpointBarrierHandler.java:240)
> at org.apache.flink.streaming.runtime.io.checkpointing.CheckpointedInputGate.handleEvent(CheckpointedInputGate.java:181)
> at org.apache.flink.streaming.runtime.io.checkpointing.CheckpointedInputGate.pollNext(CheckpointedInputGate.java:159)
> at org.apache.flink.streaming.runtime.io.AbstractStreamTaskNetworkInput.emitNext(AbstractStreamTaskNetworkInput.java:110)
> at org.apache.flink.streaming.runtime.io.StreamOneInputProcessor.processInput(StreamOneInputProcessor.java:65)
> at org.apache.flink.streaming.runtime.tasks.StreamTask.processInput(StreamTask.java:490)
> {code}
> This is caused by:
> # SingleCheckpointBarrierHandler first receive a BarrierAnnouncement, which would call checkNewCheckpoint to reset the currentCheckpointId and the alignedChannels.
> # SingleCheckpointBarrierHandler then received an EndOfPartition, which would add the channel to the alignedChannels.
> # SingleCheckpointBarrierHandler then received a barrier, which would found that the alignedChannels is already not empty, then it would skip the markAlignmentStart.
> We might change 3 to judge if this is the first barrier to receive.
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