[ https://issues.apache.org/jira/browse/FLINK-21278?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]
Flink Jira Bot updated FLINK-21278: ----------------------------------- Labels: auto-deprioritized-critical pull-request-available stale-major (was: auto-deprioritized-critical pull-request-available) I am the [Flink Jira Bot|https://github.com/apache/flink-jira-bot/] and I help the community manage its development. I see this issues has been marked as Major but is unassigned and neither itself nor its Sub-Tasks have been updated for 30 days. I have gone ahead and added a "stale-major" to the issue". If this ticket is a Major, please either assign yourself or give an update. Afterwards, please remove the label or in 7 days the issue will be deprioritized. > NullpointExecption error is reported when using the evictor method to filter > the data before the window calculation > ------------------------------------------------------------------------------------------------------------------- > > Key: FLINK-21278 > URL: https://issues.apache.org/jira/browse/FLINK-21278 > Project: Flink > Issue Type: Bug > Components: API / DataStream > Affects Versions: 1.12.1 > Reporter: HunterHunter > Priority: Major > Labels: auto-deprioritized-critical, pull-request-available, > stale-major > > When I use evictor() method to filter the data before a window is triggered, > if there is no data that meets the conditions, a nullpointExecption error > will be reported. > This problem occurs in the ReduceApplyWindowFunction.apply method. > So I think if there is no data to calculate whether it can not trigger the > calculation, or judge whether it is null before transmitting the calculation > result -- This message was sent by Atlassian Jira (v8.3.4#803005)