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https://issues.apache.org/jira/browse/FLUME-1170?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13267299#comment-13267299
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Hari Shreedharan commented on FLUME-1170:
-----------------------------------------
Thanks for the comments Arvind.
I thought about this and I decided it might be a good idea to add it on both
sides, with configurability and functions that will be called either on put or
take.
Basically:
* provide a way to configure if the callbacks should be made on put, get or
both.
* provide an interface with the following callback functions:
* onPut(Map<String, String> eventHeaders), called on put, if the config
specifies put or both.
* onTake(Map<String, String> eventHeaders), called on take, based on config.
* onCommit()
* onRollback()
I am adding support in MemoryChannel and RecoverableMemory channel and a unit
test for MemoryChannel with txnlistener support.
> Create a framework for transaction listeners
> --------------------------------------------
>
> Key: FLUME-1170
> URL: https://issues.apache.org/jira/browse/FLUME-1170
> Project: Flume
> Issue Type: New Feature
> Components: Channel, Sinks+Sources
> Affects Versions: v1.2.0
> Reporter: Hari Shreedharan
> Assignee: Hari Shreedharan
> Fix For: v1.2.0
>
>
> Initially support on the sink side. It cannot be added to the channel as it
> is possible to support transaction listeners on both source and sink, and
> each side could be a different listeners. As of now, support on sink side
> transactions. It should be fairly easy to add this to source side, if we need
> to.
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