[jira] [Assigned] (SPARK-28074) [SS] Document caveats on using multiple stateful operations in single query

2019-09-30 Thread Sean R. Owen (Jira)


 [ 
https://issues.apache.org/jira/browse/SPARK-28074?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
 ]

Sean R. Owen reassigned SPARK-28074:


Assignee: Jungtaek Lim

> [SS] Document caveats on using multiple stateful operations in single query
> ---
>
> Key: SPARK-28074
> URL: https://issues.apache.org/jira/browse/SPARK-28074
> Project: Spark
>  Issue Type: Documentation
>  Components: Documentation, Structured Streaming
>Affects Versions: 3.0.0
>Reporter: Jungtaek Lim
>Assignee: Jungtaek Lim
>Priority: Minor
>
> Please refer 
> [https://lists.apache.org/thread.html/cc6489a19316e7382661d305fabd8c21915e5faf6a928b4869ac2b4a@%3Cdev.spark.apache.org%3E]
>  to see rationalization of the issue.
> tl;dr. Using multiple stateful operators without fully understanding how 
> global watermark affects the query brings correctness issue.
> While we may not want to fully block the operations given some users could 
> leverage it with understanding of global watermark, it would be necessary for 
> end users to warn on such breaking-correctness possibility, and provide 
> alternative(s).



--
This message was sent by Atlassian Jira
(v8.3.4#803005)

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



[jira] [Assigned] (SPARK-28074) [SS] Document caveats on using multiple stateful operations in single query

2019-06-17 Thread Apache Spark (JIRA)


 [ 
https://issues.apache.org/jira/browse/SPARK-28074?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
 ]

Apache Spark reassigned SPARK-28074:


Assignee: Apache Spark

> [SS] Document caveats on using multiple stateful operations in single query
> ---
>
> Key: SPARK-28074
> URL: https://issues.apache.org/jira/browse/SPARK-28074
> Project: Spark
>  Issue Type: Documentation
>  Components: Structured Streaming
>Affects Versions: 3.0.0
>Reporter: Jungtaek Lim
>Assignee: Apache Spark
>Priority: Major
>
> Please refer 
> [https://lists.apache.org/thread.html/cc6489a19316e7382661d305fabd8c21915e5faf6a928b4869ac2b4a@%3Cdev.spark.apache.org%3E]
>  to see rationalization of the issue.
> tl;dr. Using multiple stateful operators without fully understanding how 
> global watermark affects the query brings correctness issue.
> While we may not want to fully block the operations given some users could 
> leverage it with understanding of global watermark, it would be necessary for 
> end users to warn on such breaking-correctness possibility, and provide 
> alternative(s).



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

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



[jira] [Assigned] (SPARK-28074) [SS] Document caveats on using multiple stateful operations in single query

2019-06-17 Thread Apache Spark (JIRA)


 [ 
https://issues.apache.org/jira/browse/SPARK-28074?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
 ]

Apache Spark reassigned SPARK-28074:


Assignee: (was: Apache Spark)

> [SS] Document caveats on using multiple stateful operations in single query
> ---
>
> Key: SPARK-28074
> URL: https://issues.apache.org/jira/browse/SPARK-28074
> Project: Spark
>  Issue Type: Documentation
>  Components: Structured Streaming
>Affects Versions: 3.0.0
>Reporter: Jungtaek Lim
>Priority: Major
>
> Please refer 
> [https://lists.apache.org/thread.html/cc6489a19316e7382661d305fabd8c21915e5faf6a928b4869ac2b4a@%3Cdev.spark.apache.org%3E]
>  to see rationalization of the issue.
> tl;dr. Using multiple stateful operators without fully understanding how 
> global watermark affects the query brings correctness issue.
> While we may not want to fully block the operations given some users could 
> leverage it with understanding of global watermark, it would be necessary for 
> end users to warn on such breaking-correctness possibility, and provide 
> alternative(s).



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

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