[ https://issues.apache.org/jira/browse/FLINK-27251?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]
ASF GitHub Bot updated FLINK-27251: ----------------------------------- Labels: pull-request-available (was: ) > Timeout aligned to unaligned checkpoint barrier in the output buffers of an > upstream subtask > -------------------------------------------------------------------------------------------- > > Key: FLINK-27251 > URL: https://issues.apache.org/jira/browse/FLINK-27251 > Project: Flink > Issue Type: Improvement > Components: Runtime / Checkpointing > Affects Versions: 1.14.0, 1.15.0 > Reporter: fanrui > Assignee: fanrui > Priority: Major > Labels: pull-request-available > Fix For: 1.16.0 > > > After FLINK-23041, the downstream task can be switched UC when {_}currentTime > - triggerTime > timeout{_}. But the downstream task still needs wait for all > barriers of upstream. > If the back pressure is serve, the downstream task cannot receive all barrier > within CP timeout, causes CP to fail. > > Can we support upstream Task switching from Aligned to UC? It means that when > the barrier cannot be sent from the output buffer to the downstream task > within the > [execution.checkpointing.aligned-checkpoint-timeout|https://nightlies.apache.org/flink/flink-docs-release-1.14/docs/deployment/config/#execution-checkpointing-aligned-checkpoint-timeout], > the upstream task switches to UC and takes a snapshot of the data before the > barrier in the output buffer. > > Hi [~akalashnikov] , please help take a look in your free time, thanks a lot. -- This message was sent by Atlassian Jira (v8.20.7#820007)