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From Jarek Jarcec Cecho <jar...@apache.org>
Subject Re: flume non-duplication guarantees?
Date Thu, 26 Jul 2012 15:15:28 GMT
What version of flume were you using Mark?

Based on the "end-to-end configuration" , I would say that you're using old flume (version
0.9.x). If that is true, than the duplicity is unfortunately known flow. We've significantly
redesigned flume in 1.x (known as flume-ng) to avoid such issues.

Jarcec

On Jul 26, 2012, at 7:51 AM, Stern, Mark wrote:

> I was testing flume in an end-to-end configuration where A can send to D
> via B or C. A, B, C and D are all flume agents with file channels. In
> the course of the test, I killed and restarted B and C. At the end of
> the test. I found that all the events reached D, but 100
> events (that is my batch size on the avro sinks) were duplicated.
> 
> Is this expected (or at least accepted) behaviour?
> 
> Thanks,
> 
> Mark Stern


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