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From "Tathagata Das (JIRA)" <j...@apache.org>
Subject [jira] [Closed] (SPARK-1647) Prevent data loss when Streaming driver goes down
Date Tue, 21 Oct 2014 01:47:34 GMT

     [ https://issues.apache.org/jira/browse/SPARK-1647?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
]

Tathagata Das closed SPARK-1647.
--------------------------------
    Resolution: Duplicate

> Prevent data loss when Streaming driver goes down
> -------------------------------------------------
>
>                 Key: SPARK-1647
>                 URL: https://issues.apache.org/jira/browse/SPARK-1647
>             Project: Spark
>          Issue Type: Bug
>          Components: Streaming
>            Reporter: Hari Shreedharan
>            Assignee: Hari Shreedharan
>
> Currently when the driver goes down, any uncheckpointed data is lost from within spark.
If the system from which messages are pulled can  replay messages, the data may be available
- but for some systems, like Flume this is not the case. 
> Also, all windowing information is lost for windowing functions. 
> We must persist raw data somehow, and be able to replay this data if required. We also
must persist windowing information with the data itself.
> This will likely require quite a bit of work to complete and probably will have to be
split into several sub-jiras.



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