Hi, Thanks for your replies. I don't change ZK hosts a lot of times. I'm using Amazon platform and if a ZK host is not available I will start new EC2 instance and will have to plug it to Solr configuration (restart required). In case of load balancer this would be much easier (no need to restart solr).
Regards. On 30 December 2012 04:06, Anirudha Jadhav <aniru...@nyu.edu> wrote: > A zookeeper ensemble should be a fairly reliable, large enough no.of > machines(3+ typically 5,7,9) for a quorum. > So adding a load balancer on top will just add a hop and > decrease performance, and also add a failure point in the system. > > that being said there needs to be a way to provide solr with a way to > refresh conf. without restart. > > Solr takes a list of zk hosts on startup, If i am correct , uses one of > them unless it fails or round robins. > > why do your zkhosts need to change a lot? > > > On Sat, Dec 29, 2012 at 10:58 AM, Upayavira <u...@odoko.co.uk> wrote: > > > I would suggest asking this on the zookeeper user list. > > > > And let us know here what you find out, I'd be interested. > > > > Note, zookeeper, as I understand it, uses its own protocol, so to some > > reasonable extent it probablmy depends on yr load balancer. Also, as I > > understand it, zookeeper maintains active connections to solr hosts, > > which is not a common scenario for load balances as I understand it. > > > > Upayavira > > > > On Fri, Dec 28, 2012, at 04:39 PM, Marcin Rzewucki wrote: > > > Hi, > > > > > > Does Solr need connection to all of hosts in ZK ensemble or only to one > > > of > > > them at a time ? I wonder if it is possible to use load balancer for ZK > > > ensemble and use only one address as zkHost for Solr ? Having load > > > balancer > > > makes it easier to change ZK hosts while still using same address by > Solr > > > (no need to restart Solr or change its configuration). > > > > > > Thanks in advance. > > > Regards. > > > > > > -- > Anirudha P. Jadhav >
