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From William Slacum <>
Subject Re: Question about configuring the linux niceness of tablet servers?
Date Mon, 17 Aug 2015 21:33:15 GMT
By "Hadoop" do you mean a Yarn NodeManager process?

On Mon, Aug 17, 2015 at 4:21 PM, Jeff Kubina <> wrote:

> On each of the processing nodes in our cluster we have running 1) HDFS
> (datanode), 2) Accumulo (tablet server), and 3) Hadoop. Since Accumulo
> depends on the HDFS, and Hadoop depends on the HDFS and sometimes on
> Accumulo, we are considering setting the niceness of HDFS to 0 (the current
> value), Accumulo to 1, and Hadoop to 2 on each of the nodes. The objective
> is to improve the real time performance of Accumulo.
> Does anyone have experience configuring their cluster in a similar manner
> that they can share?  Are there any serious cons to doing this?

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