What does [hadoop fsck /] show?
On 10/1/07 5:36 AM, "Ming Yang" <[EMAIL PROTECTED]> wrote: > Hi, > > I am using hadoop 0.14.1 on Ubuntu 7.04 (kernel version 2.6.20) > The Java version is 1.5.0.12. There are no failed tasks and no > lost task trackers.. What I observed is the machine only finished > part of the reduce tasks and became idle. Could the issue come > from my HDFS since the status showed the transfer rate is so low? > > Thanks, > > Ming > > > 2007/9/30, Arun C Murthy <[EMAIL PROTECTED]>: >> Ming Yang, >> >> On Sun, Sep 30, 2007 at 01:13:07PM -0400, Ming Yang wrote: >>> Hi, >>> >>> I set up a 2-node Hadoop cluster, whose nodes are all in >>> the same network and ran the 'grep' example. The map tasks >>> were distributed among the two machines and ran without any >>> problem. However, the reduce task, which is running at the slave >>> node, doesn't seem to finish and stops at 11%. I checked the >>> reduce task tracker and it shows the following message: >>> >>> reduce > copy (5 of 15 at 0.00 MB/s) > >>> >>> Can anyone let me know where the problem comes from? >>> and how to fix it? I really appreciate it! >>> >> >> Could you provide details on the hadoop version, platform etc.? Were there >> any failed tasks, lost task-trackers? >> >> Arun >> >>> Thank you, >>> >>> Ming Yang >>
