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Posted to issues@flink.apache.org by "Piotr Nowojski (Jira)" <ji...@apache.org> on 2020/02/10 11:32:00 UTC

[jira] [Comment Edited] (FLINK-13955) Integrate ContinuousFileReaderOperator with StreamTask mailbox execution model

    [ https://issues.apache.org/jira/browse/FLINK-13955?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=17033508#comment-17033508 ] 

Piotr Nowojski edited comment on FLINK-13955 at 2/10/20 11:31 AM:
------------------------------------------------------------------

Temporary solution merged as commit 2e96ee7 into apache:master.

Proper solution will be to rewrite {{ContinuousFileReaderOperator}} using FLIP-27.


was (Author: pnowojski):
merged commit 2e96ee7 into apache:master 

> Integrate ContinuousFileReaderOperator with StreamTask mailbox execution model
> ------------------------------------------------------------------------------
>
>                 Key: FLINK-13955
>                 URL: https://issues.apache.org/jira/browse/FLINK-13955
>             Project: Flink
>          Issue Type: Sub-task
>          Components: Runtime / Task
>            Reporter: Alex
>            Assignee: Roman Khachatryan
>            Priority: Major
>              Labels: pull-request-available
>             Fix For: 1.11.0
>
>          Time Spent: 20m
>  Remaining Estimate: 0h
>
> The {{ContinuousFileReaderOperator}} spawns an additional ({{reader}}) thread and coordinates actions with it via {{checkpointLock}}. The operator may block, waiting for a notification from the {{reader}} thread, potentially preventing progress in mailbox loop.
> This is similar to {{AsyncWaitOperator}} situation described in FLINK-12958.



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