Hi All
I do have a query here on maintaining Hadoop map-reduce logs.
In default the logs appear in respective task tracker nodes which you can
easily drill down from the job tracker web UI at times of any failure.(Which
I was following till now) . Now I need to get into the next level to manage
the logs corresponding to individual jobs. In my log I'm dumping some key
parameters with respect to my business which could be used for business
level debugging/analysis at time in the future if required . For this
purpose, I need a central log file corresponding to a job. (not many files,
ie one per task tracker because as the cluster grows the no of log files
corresponding to a job also increases). A single point of reference makes
things handy for analysis by any business folks .
I think it would be a generic requirement of any enterprise application
to manage and archive the logs of each job execution. Hence definitely
there would be best practices and standards identified and maintained by
most of the core Hadoop enterprise users. Could you please help me out by
sharing some of the better options for log management for Hadoop map-reduce
logs. It could greatly help me choose the best practice that suit my
environment and application needs.

Thank You

Regards
Bejoy.K.S

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postedSep 23, '11 at 7:53a
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