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Hadoop >> mail # user >> User History Location


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Re: User History Location

On Feb 11, 2011, at 6:12 AM, Alexander Schätzle wrote:

> Hello,
>
> I'm a little bit confused about the right key for specifying the User History Location in CDH3B3 (which is Hadoop 0.20.2+737). Could anybody please give me a short answer which key is the right one and which configuration file is the right one to place the key?
>
> 1) mapreduce.job.userhistorylocation ?
> 2) hadoop.job.history.user.location ?
>
> Is the mapred-site.xml the right config-file for this key?

I don't know about Cloudera, but on the real Hadoop, you don't want to write these to HDFS.  If the write fails (which can happen under a variety of circumstances), all job logging gets turned off.