You are viewing a plain text version of this content. The canonical link for it is here.

Posted to issues@spark.apache.org by "Apache Spark (JIRA)" <ji...@apache.org> on 2019/04/25 16:57:03 UTC

[jira] [Assigned] (SPARK-27355) make query execution more sensitive to epoch message late or lost

     [ https://issues.apache.org/jira/browse/SPARK-27355?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]

Apache Spark reassigned SPARK-27355:
------------------------------------

    Assignee: Apache Spark

> make query execution more sensitive to epoch message late or lost
> -----------------------------------------------------------------
>
>                 Key: SPARK-27355
>                 URL: https://issues.apache.org/jira/browse/SPARK-27355
>             Project: Spark
>          Issue Type: Improvement
>          Components: Structured Streaming
>    Affects Versions: 3.0.0
>            Reporter: Genmao Yu
>            Assignee: Apache Spark
>            Priority: Minor
>
> In SPARK-23503, we enforce sequencing of committed epochs for Continuous Execution. In case a message for epoch n is lost and epoch (n + 1) is ready for commit before epoch n is, epoch (n + 1) will wait for epoch n to be committed first. With extreme condition, we will wait for `epochBacklogQueueSize` (10000 in default) epochs and then failed. There is no need to wait for such a long time before query fail, and we can make the condition more sensitive.



--
This message was sent by Atlassian JIRA
(v7.6.3#76005)

---------------------------------------------------------------------
To unsubscribe, e-mail: issues-unsubscribe@spark.apache.org
For additional commands, e-mail: issues-help@spark.apache.org