[jira] [Updated] (FLUME-1819) ExecSource don't flush the cache if there is no input entries

["Venkatesh Sivasubramanian (JIRA)" <ji...@apache.org>]

     [ https://issues.apache.org/jira/browse/FLUME-1819?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]

Venkatesh Sivasubramanian updated FLUME-1819:
---------------------------------------------

    Assignee: Venkatesh Sivasubramanian
    
> ExecSource don't flush the cache if there is no input entries
> -------------------------------------------------------------
>
>                 Key: FLUME-1819
>                 URL: https://issues.apache.org/jira/browse/FLUME-1819
>             Project: Flume
>          Issue Type: Bug
>          Components: Sinks+Sources
>    Affects Versions: v1.3.0
>            Reporter: Fengdong Yu
>            Assignee: Venkatesh Sivasubramanian
>             Fix For: v1.4.0
>
>         Attachments: FLUME-1819.patch
>
>
> ExecSource has a default batchSize: 20, exec source read data from the source, then put it into the cache, after the cache is full, push it to the channel.
> but if exec source's cache is not full, and there isn't any input for a long time, then these entries always kept in the cache, there is no chance to the channel until the source's cache is full.
> so, the patch added a new config line: batchTimeout for ExecSource, and default is 3 seconds, if batchTimeout exceeded, push all cached data to the channel even the cache is not full.

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