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From Mike Percy <mpe...@apache.org>
Subject Re: Reliable flows in flume
Date Fri, 06 Jul 2012 06:30:31 GMT
Hi Guido,
There is no release of Flume yet that has a stable FileChannel. If you want
to use FileChannel now, then you will have to build from trunk.

We're planning on doing an Apache Flume 1.2.0 release in a couple of weeks,
which will include a stable FileChannel.


On Thu, Jul 5, 2012 at 5:37 AM, Guido Urdaneta <guidox@gmail.com> wrote:

> Hi,
> I have been trying to configure a reliable flow in Flume NG.
> I installed the Flume NG distribution that comes with Cloudera cdh4.
> Cloudera's documentation says that JDBC channel is "ideal for flows
> where recoverability is important" and that FileChannel "is not yet
> ready for use".
> However, in some messages in this mailing list  FileChannel has been
> recommended as the best option for reliable flows. Is this actually
> the case?
> Is Cloudera packing an old version of Flume NG with its CDH4 distribution?
> Any recommendations?
> I have found the performance of JDBC channel to be extremely slow
> (about 10,000 times slower than memory channel), with the bottleneck
> being CPU usage.
> Can anybody give a recommendation?
> Thanks in advance,
> GU

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