Re: Changing configuration

2010-10-07 Thread Flavio Junqueira 
We don't have dynamic configuration yet, but it is on our todo list:	http://wiki.apache.org/hadoop/ZooKeeper/ClusterMembershipso for now I believe you would have to reconfigure manually and restart the cluster. For Zab, you should be looking at org.apache.zookeeper.server.quorum.Cheers,-FlavioOn Oct 7, 2010, at 6:49 AM, Avinash Lakshman wrote:Suppose I have a 3 node ZK cluster composed of machines A, B and C. Now forwhatever reason I lose C forever and the machine needs to be replaced. Howdo I handle this situation? Update the config with D in place of C andrestart the cluster? Also if I am interested in read just the ZAB portionswhich packages should I be looking at?CheersA flaviojunqueiraresearch scientistf...@yahoo-inc.comdirect +34 93-183-8828avinguda diagonal 177, 8th floor, barcelona, 08018, esphone (408) 349 3300fax (408) 349 3301

Re: Changing configuration

2010-10-07 Thread Patrick Hunt 
You probably want to do a rolling restart, this is preferable over
restart the cluster as the service will not go down.
http://wiki.apache.org/hadoop/ZooKeeper/FAQ#A6

http://wiki.apache.org/hadoop/ZooKeeper/FAQ#A6Patrick

On Wed, Oct 6, 2010 at 9:49 PM, Avinash Lakshman avinash.laksh...@gmail.com
 wrote:

 Suppose I have a 3 node ZK cluster composed of machines A, B and C. Now for
 whatever reason I lose C forever and the machine needs to be replaced. How
 do I handle this situation? Update the config with D in place of C and
 restart the cluster? Also if I am interested in read just the ZAB portions
 which packages should I be looking at?

 Cheers
 A

Re: Changing configuration

2010-10-07 Thread Adam Lazur 
Restart all clients too.

.laz

Patrick Hunt (ph...@apache.org) said:
 You probably want to do a rolling restart, this is preferable over
 restart the cluster as the service will not go down.
 http://wiki.apache.org/hadoop/ZooKeeper/FAQ#A6
 
 http://wiki.apache.org/hadoop/ZooKeeper/FAQ#A6Patrick
 
 On Wed, Oct 6, 2010 at 9:49 PM, Avinash Lakshman avinash.laksh...@gmail.com
  wrote:
 
  Suppose I have a 3 node ZK cluster composed of machines A, B and C. Now for
  whatever reason I lose C forever and the machine needs to be replaced. How
  do I handle this situation? Update the config with D in place of C and
  restart the cluster? Also if I am interested in read just the ZAB portions
  which packages should I be looking at?
 
  Cheers
  A