Fixed our own problem - this may help others:
We needed Tomcat 6 jars to be in $ANT_HOME/lib
Pretty obvious with hindsight, but hindsight is a wonderful thing...
Royston
-Original Message-
From: Royston Sellman [mailto:royston.sell...@googlemail.com]
Sent: 20 December 2011 18:19
To: co
I am using the tomcat 6 jars with Ant to build Hadoop 1.0.0-rc3 and I am
getting the following error when hadoop is running and we try to load the
namenode dfshealth.jsp page (note that we can successfully view the
jobtracker.jsp page and hbase's UI):
HTTP ERROR 500
Problem accessing /dfshealt
This problem was caused by my use of Tomcat 6. It appears that the version of
jasper being used in the Hadoop 1 RC3 code is 5.5.12. Therefore, by replacing
the relevant $ANT_HOME/lib jars with Tomcat 5 jars and rebuilding hadoop I have
solved all my problems!
-Original Message-
From: To
Hi Merto,
> a) is LATE scheduler a standalone scheduler or is integrated in
> fairscheduler? If is standalone where to find it and which hadoop version
> does it support?
LATE is actually part of the common scheduling code that all of the schedulers
in Hadoop use, implemented in the JobInProgres
Hi, jack
I also encounter this problem, so I would like to know how you deal with it.
Thanks
Fuzhen Zheng, from China
Hi JJ
If you use the default TextInputFormat, it wont do the job as it
would generate at least one split for each file. So in your case there
would be a min of 78 splits as there are that many input files and 78
mappers and hence same 78 output files. You need to use
CombineFileInputFormat
Hi Bejoy,
This is what I tried initially but in this case, just to run job over 5 GB
input takes more than an hour as RecordReader in LineRecordReader and
offset is around 64 MB. It's is making performance really bad.
Thanks,
Anurag Tangri
On Wed, Dec 21, 2011 at 12:13 PM, Bejoy Ks wrote:
> H
Can you run the hostname command on both servers and send their output?
-Joey
On Tue, Dec 20, 2011 at 8:21 PM, MirrorX wrote:
>
> dear all
>
> i am trying for many days to get a simple hadoop cluster (with 2 nodes) to
> work but i have trouble configuring the network parameters. i have properly
Hi,
Any one here has any idea about running hadoop as a job using Lava job
scheduler? University cluster don't have Hadoop yet so I just want to
know if it's possible to run Hadoop as a job under Lava job scheduler.
Welcome to any hint.
Best
--Yue
MirrorX,
Try out adding hostname of your master and slave system also to /etc/hosts/
That fixed same error for me.
master->
127.0.0.1 localhost6.localdomain6 localhost
127.0.1.1 localhost4.localdomain4 master-pc
192.168.7.110 master master-pc
192.168.7.157 slave lab-pc
slave->
127.0.1.1
Hi guys !
If we neglect the shuffle part, can reduce phase be CPU/IO bound ?
Can anyone suggest some benchmark or example where we can see this ?
Arun
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