[jira] [Commented] (FLINK-29813) Remove deprecated Curator API usages

["Matthias Pohl (Jira)" <ji...@apache.org>]

    [ https://issues.apache.org/jira/browse/FLINK-29813?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=17727525#comment-17727525 ] 

Matthias Pohl commented on FLINK-29813:
---------------------------------------

Just as a fyi: FLINK-32204 was caused by the {{TreeCache}} not being thread-safe when shutting down the passed {{executorService}}. If there's a late event coming in that is processed in the curator's event thread while the cache is closed in another thread, it might be that we run into a {{RejectedExecutionException}} because the executor might have been shutdown while the late event is submitted to be processed (see the [FLINK-32204 comment|https://issues.apache.org/jira/browse/FLINK-32204?focusedCommentId=17726613&page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel#comment-17726613]). This became apparent when FLINK-31995 was introduced which added shutdown handling to the {{DirectExecutorService}}.

> Remove deprecated Curator API usages
> ------------------------------------
>
>                 Key: FLINK-29813
>                 URL: https://issues.apache.org/jira/browse/FLINK-29813
>             Project: Flink
>          Issue Type: Technical Debt
>          Components: Runtime / Coordination
>            Reporter: Chesnay Schepler
>            Assignee: Chesnay Schepler
>            Priority: Major
>             Fix For: 1.18.0
>
>




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