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MapReduce >> mail # user >> getting errors on datanode/tasktracker logs


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Re: getting errors on datanode/tasktracker logs
its seems to be a bug in java,run a test jar on ur cluster

fallow

http://bugs.sun.com/bugdatabase/view_bug.do?bug_id=6727824

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Raj K Singh
http://www.rajkrrsingh.blogspot.com
Mobile  Tel: +91 (0)9899821370
On Sat, Aug 10, 2013 at 1:34 PM, Jitendra Yadav
<[EMAIL PROTECTED]>wrote:

> Raj,
>
> Currently java heap size is 1gb, my hdfs cluster is fresh and small.
>
> still I need to increase head size?
>
> Thanks
> On 8/10/13, Raj K Singh <[EMAIL PROTECTED]> wrote:
> > i
> > ncrease your java heap size.
> >
> > ::::::::::::::::::::::::::::::::::::::::
> > Raj K Singh
> > http://www.rajkrrsingh.blogspot.com
> > Mobile  Tel: +91 (0)9899821370
> >
> >
> > On Sat, Aug 10, 2013 at 12:17 AM, Jitendra Yadav
> > <[EMAIL PROTECTED]
> >> wrote:
> >
> >> Hi,
> >>
> >> I'm getting below errors in log file while starting datanode and
> >> tasktracker. I'm using Hadoop 1.1.2 and java 1.7.0_21.
> >>
> >> mmap failed for CEN and END part of zip file
> >> mmap failed for CEN and END part of zip file
> >> mmap failed for CEN and END part of zip file
> >> mmap failed for CEN and END part of zip file
> >> mmap failed for CEN and END part of zip file
> >> mmap failed for CEN and END part of zip file
> >>
> >> Please guide.
> >>
> >> Thanks
> >>
> >
>