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Posted to user@flume.apache.org by Pranav Sharma <pr...@compasslabs.com> on 2013/04/29 09:48:15 UTC

High CPU usage when using file channel.

Hi,

I see a very high CPU usage (70-75% on AWS EC2 m1 large machines and
96-100% on m1 small) when I use the file channel. I'm
using apache-flume-1.3.1. Is this a known issue? As soon as I switched to
the memory channel, the CPU usage dropped to almost 0.

Thanks,
-Pranav.

Re: High CPU usage when using file channel.

Posted by Brock Noland <br...@cloudera.com>.

Weird. Do you feel comfortable using a java profiler? If not could you take 4-5 thread dumps while that channel is using that much CPU.  

-- 
Brock Noland
Sent with Sparrow (http://www.sparrowmailapp.com/?sig)

On Monday, April 29, 2013 at 2:48 AM, Pranav Sharma wrote:

> Hi,
> 
> I see a very high CPU usage (70-75% on AWS EC2 m1 large machines and 96-100% on m1 small) when I use the file channel. I'm using apache-flume-1.3.1. Is this a known issue? As soon as I switched to the memory channel, the CPU usage dropped to almost 0. 
> 
> Thanks,
> -Pranav.