Hadoop 0.21 running problems , no namenode to stop

2011-03-02 Thread Shivani Rao
Problems running local installation of hadoop on single-node cluster I followed instructions given by tutorials to run hadoop-0.21 on a single node cluster. The first problem I encountered was that of HADOOP-6953. Thankfully that has got fixed. The other problem I am facing is that the datano

Re: conceptual question regarding slots

2011-03-02 Thread bikash sharma
Thanks Greg! On Wed, Mar 2, 2011 at 5:07 PM, Greg Roelofs wrote: > > Could someone throw some light as to how intuitively fixed-type slots in > > Hadoop have a negative impact of cluster utilization as mentioned in > Arun's > > blog? > > It's pretty simple: in the course of time, a real cluster

Re: conceptual question regarding slots

2011-03-02 Thread Greg Roelofs
> Could someone throw some light as to how intuitively fixed-type slots in > Hadoop have a negative impact of cluster utilization as mentioned in Arun's > blog? It's pretty simple: in the course of time, a real cluster with a mix of job types and submission times will have periods of high map-slo

Hadoop-Common-trunk-Commit - Build # 514 - Failure

2011-03-02 Thread Apache Hudson Server
See https://hudson.apache.org/hudson/job/Hadoop-Common-trunk-Commit/514/ ### ## LAST 60 LINES OF THE CONSOLE ### [...truncated 2030 lines...] [jar] Building jar:

conceptual question regarding slots

2011-03-02 Thread bikash sharma
Hi, Could someone throw some light as to how intuitively fixed-type slots in Hadoop have a negative impact of cluster utilization as mentioned in Arun's blog? http://developer.yahoo.com/blogs/hadoop/posts/2011/02/mapreduce-nextgen/ Thanks, Bikash