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From Eric Yang <>
Subject Re: Shutting down not required FileTailingAdaptors
Date Sat, 13 Nov 2010 18:01:42 GMT
Hi Deepak,

Shutdown unused FileTailingAdaptor is a welcome addition, and
DirTailingAdaptor can be extended to another adaptor to meet this
requirement.  The expiration period can be a global config parameter
in Chukwa Agent config.  I think the design is on the right track.


On Thu, Nov 11, 2010 at 3:12 PM, Deshpande, Deepak
<> wrote:
> I am using DirTailingAdaptor to monitor a directory and to start
> FileTailingAdaptor(s) for any new files getting created in that
> directory. In our environment a log file is created everyday and every
> file will have date in the file name. So, new log messages are written
> to current day files and previous day files are NOT updated.  The
> FileTailingAdaptor that's monitoring previous day file can be shut down
> without any concern. To satisfy this requirement I have written an
> adaptor that gets adaptors of type FileTailingAdaptor and gets the file
> name from it. If the file has NOT been modified for some time (a time
> that is passed as an argument when this adaptor is started) it shuts
> down the FileTailingAdaptor.
> I wanted to find out if this is a correct approach OR is there any other
> way to satisfy this requirement.
> Thanks,
> Deepak Deshpande.

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