[
https://issues.apache.org/jira/browse/FLINK-18523?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
]
Flink Jira Bot updated FLINK-18523:
-----------------------------------
Priority: Minor (was: Major)
> Advance watermark if there is no data in all of the partitions after some time
> ------------------------------------------------------------------------------
>
> Key: FLINK-18523
> URL: https://issues.apache.org/jira/browse/FLINK-18523
> Project: Flink
> Issue Type: New Feature
> Components: Table SQL / API
> Affects Versions: 1.11.0
> Reporter: chen yong
> Priority: Minor
> Labels: auto-deprioritized-major
>
> In the case of window calculations and eventTime scenarios, watermark cannot
> update because the source does not have data for some reason, and the last
> Windows cannot trigger the calculations.
> One parameter, table.exec.source. Idle -timeout, can only solve the problem
> of ignoring parallelism of watermark alignment that does not occur.But when
> there is no watermark in each parallel degree, you still cannot update the
> watermark.
> Is it possible to add a lock-timeout parameter (which should be larger than
> maxOutOfOrderness with default of "-1 ms") and if the watermark is not
> updated beyond this time (i.e., there is no data), then the current time is
> taken and sent downstream as the watermark.
>
> thanks!
--
This message was sent by Atlassian Jira
(v8.3.4#803005)
