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 :::::::::::::::::::::::::::::::::::::::: 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 > >> > > >
