Gzip files (unlike uncompressed files) are not splittable, which may be causing the behavior that you described. On Dec 24, 2011 6:24 AM, "Niels Basjes" <ni...@basjes.nl> wrote:
> Hi, > > I noticed that the mapper progress indication in the hadoop cdh3 > distribution jumps from 0% to 100% for each gzipped input file. So when > running with big gzipped input files the job appears to be stuck. > > I was unable to find a jira issue that describes this effect. > Before I dive into this I have a few questions to you guys: > 1) is this a known effect for the 0.20 version? If so what is the jira > issue? > 2) is this specific to gzip? > 3) is this effect still present in the MRv2/yarn version of Hadoop? > > Thanks. > -- > Met vriendelijke groet, > Niels Basjes > (Verstuurd vanaf mobiel ) >
