ClientProtocol create、mkdirs 、rename and delete methods are not Idempotent

2012-10-27 Thread lei liu
I think these methods should are idempotent, these methods should be repeated calls to be harmless by same client. Thanks, LiuLei

Re: simple tutorial or procedure for configuring HDFS FEDERATION 0.23.3 in a cluster

2012-10-27 Thread Ravi Prakash
A simple search ought to have found this for you.     http://hadoop.apache.org/docs/r0.23.0/hadoop-yarn/hadoop-yarn-site/Federation.html From: Visioner Sadak To: user@hadoop.apache.org Sent: Saturday, October 27, 2012 2:03 AM Subject: Re: simple tutorial o

Re: Cluster wide atomic operations

2012-10-27 Thread Kev Kilroy
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Re: HDFS HA IO Fencing

2012-10-27 Thread பாலாஜி நாராயணன்
If you use NSFv4 you should be able to use locks and when a machine dies / fails to renew the lease, the other machine can take over. On Friday, October 26, 2012, Todd Lipcon wrote: > NFS Locks typically last forever if you disconnect abruptly. So they are > not sufficient -- your standby wouldn'

Re: java.lang.NoSuchMethodError: org.apache.commons.codec.binary.Base64.(I)V

2012-10-27 Thread Harsh J
Hi, What version/release/distro of Hadoop is this from, 2.x? You need the commons-codec-1.4.jar on your HDFS classpath. Normally, this is available at $HADOOP_PREFIX/lib (1.x based releases) or in $HADOOP_PREFIX/share/hadoop/common/lib/ (2.x based releases). On Sat, Oct 27, 2012 at 10:10 AM, cen

Re: HDFS HA IO Fencing

2012-10-27 Thread lei liu
I use NFS V4 to test the java FileLock. The 192.168.1.233 machine is NFS Server, the nfs configuration are /home/hdfs.ha/share 192.168.1.221(rw,sync,no_root_squash) /home/hdfs.ha/share 192.168.1.222(rw,sync,no_root_squash) in /etc/exports file. I run below commands to start nfs server: servi

Re: FAILED: Hive Internal Error

2012-10-27 Thread Steve Loughran
On 27 October 2012 10:44, sagar nikam wrote: > Respected Sir/Madam, > >> >> this is a hive question. Please don't cross post to general@hadoop or user@hadoop. thanks

Re: FAILED: Hive Internal Error

2012-10-27 Thread sagar nikam
Respected Sir/Madam, > > > I have installed Hadoop on my ubuntu 12.04 system > i installed HIVE also.for some days it works fine..but one day i directly > shutdown my machine (with closing hive & hadoop) > now i am running some query..it throws error (query like "show > databases","use database_

Re: reference architecture

2012-10-27 Thread Mohammad Tariq
Thank you so much everybody, for the valuable comments. On Saturday, October 27, 2012, Russell Jurney wrote: > Russell Jurney http://datasyndrome.com > > On Oct 25, 2012, at 12:24 PM, "Daniel Käfer" wrote: > >> Hello all, >> >> I'm looking for a reference architecture for hadoop. The only result

Re: reference architecture

2012-10-27 Thread Russell Jurney
Russell Jurney http://datasyndrome.com On Oct 25, 2012, at 12:24 PM, "Daniel Käfer" wrote: > Hello all, > > I'm looking for a reference architecture for hadoop. The only result I > found is Lambda architecture from Nathan Marz[0]. > > With architecture I mean answers to question like: > - How sh

Re: reference architecture

2012-10-27 Thread Russell Jurney
I define one of these in the book agile data, from O'Reilly. I express opinions on all matters you query us about. But you don't have to take my word for it... It's a reading rainbow! Jordi! Russell Jurney http://datasyndrome.com On Oct 27, 2012, at 1:09 AM, "Daniel Käfer" wrote: > Am Freitag

Re: reference architecture

2012-10-27 Thread Daniel Käfer
Am Freitag, den 26.10.2012, 18:25 +0100 schrieb Steve Loughran: > Depends on the amount of data and expected use. If it's transient food > for the next MR jobs: HDFS Thanks for your help

Re: simple tutorial or procedure for configuring HDFS FEDERATION 0.23.3 in a cluster

2012-10-27 Thread Visioner Sadak
any hints friends... On Fri, Oct 19, 2012 at 12:54 PM, Visioner Sadak wrote: > Is there any simple links tutorials for installing HDFS federation 0.23.3 > in a cluster set up >