Hi,

http://flume.apache.org/FlumeUserGuide.html#exec-source
Please see the WARNING ;)

Anyhow, this error indicates that you've to less memory configured for too many 
events. Tune flume-env.sh and tweak JAVA_OPTS into "-Xms100m -Xmx200m" or 
something else

FileChannel is available in from up to 1.3
http://flume.apache.org/FlumeUserGuide.html#recoverable-memory-channel

cheers
- Alex


On Nov 3, 2012, at 1:21 AM, Parag Hukeri <[email protected]> wrote:

> I tried to use the FileChannel; but am getting an exception -
>  
> org.apache.flume.FlumeException: Unable to load channel type: file, class: 
> org.apache.flume.channel.file.FileChannel
> Caused by: java.lang.ClassNotFoundException: 
> org.apache.flume.channel.file.FileChannel
>  
> I am using  apache-flume-1.2.0. What version of flume is needed for 
> FileChannel?
>  
> Thanks
> 
> --- On Fri, 11/2/12, Josh West <[email protected]> wrote:
> 
> 
> From: Josh West <[email protected]>
> Subject: Re: ExecSource tail -F stops after a while
> To: [email protected]
> Date: Friday, November 2, 2012, 1:48 PM
> 
> 
> 
> This happened to me consistently when buffering tail -F contents into the 
> Memory Channel.  Try switching to the File Channel.  This solved the issue 
> for me.
> 
> 
> On 11/02/2012 07:15 PM, Parag Hukeri wrote:
> 
> 
> 
> 
> 
> 
> Hi
>  
> I am using apache-flume-1.2.0. I have set up an ExecSource that tails a log 
> file & gets the entries from this log file. The log file size is approx 4 GB 
> (approx 12 million lines written over a period of 12 hrs). As the process 
> starts everything seems to work fine for approx 9.5 hrs. (approx 9.5 million 
> lines of log data is successfully retrieved by ExecSource). It then stops 
> reading the output from tail. I don't see any exceptions being thrown. I 
> don't think the problem is with the actual tail command. I was able to 
> successfully manually tail the log file & all 12 million records were 
> retrieved by tail. Running on a Linux system. Not sure what the issue might 
> be with ExecSource? Any help would be appreciated. Thanks.
> -- 
> Josh West
> Lead Systems Administrator
> One.com, [email protected]

--
Alexander Alten-Lorenz
http://mapredit.blogspot.com
German Hadoop LinkedIn Group: http://goo.gl/N8pCF

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