I have read Dhruba's blog entry about AvatarNode long ago. If I am not
wrong initially it was not using ZooKeeper. That is way I raised that
question. Also, AvatorNode is build on HDFS 0.20 but my intension is to
utilize BackupNode that comes with HDFS 0.21
Thanks,
Ozcan.
-----Original Message-----
From: Jason Rutherglen
Sent: Saturday, April 23, 2011 1:17 PM
To: hdfs-user@hadoop.apache.org
Subject: Re: HDFS + ZooKeeper
This is an interesting question. AvatarNode doesn't use Zookeeper?
Is there a drawback to implementing ZK for the NameNode other than the
potential bugs from a newly engineered feature?
Perhaps this issue is the main one for implementing the NameNode in
ZK? HDFS-1623
On Fri, Apr 22, 2011 at 10:41 PM, Jean-Daniel Cryans
<jdcry...@apache.org> wrote:
This is a 1M$ question. You could start thinking about this problem by
looking at what "AvatarNode" does:
https://issues.apache.org/jira/browse/HDFS-976
J-D
On Fri, Apr 22, 2011 at 10:17 PM, Ozcan ILIKHAN <ilik...@cs.wisc.edu>
wrote:
Hi,
Does anyone have any idea about how we can use HDFS with ZooKeeper? More
elaborately if NameNode fails DataNodes should be able to retrieve
address
of new NameNode from ZooKeeper.
Thanks,
---------------------------------
Ozcan ILIKHAN
PhD Student, Graduate Research Assistant
Department of Computer Sciences
University of Wisconsin-Madison
http://pages.cs.wisc.edu/~ilikhan
