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
