Home | About | Sematext search-lucene.com search-hadoop.com
 Search Hadoop and all its subprojects:

Switch to Threaded View
Chukwa >> mail # user >> Seeing duplicate entries

Copy link to this message
Re: Seeing duplicate entries
On Fri, Oct 22, 2010 at 8:48 AM, Eric Yang <[EMAIL PROTECTED]> wrote:
> Hi Matt,
> The duplication filtering in Chukwa 0.3.0 depends on data loading to
> mysql.  The same primary key will update to the same row to remove
> duplicates.  It is possible to build a duplication detection process
> prior to demux which filter data based on sequence id + data type +
> csource (host), but this hasn't been implemented because primary key
> update method works well for my use case.

This isn't quite right. There is support in 0.3 and later versions for
doing de-duplication at the collector, in the manner Eric describes.
It works as a filter in the writer pipeline.

You need the following in your configuration:



See http://incubator.apache.org/chukwa/docs/r0.3.0/collector.html for background

UC Berkeley Computer Science Department