Hi Upayavira, I believe there is a basic implementation of load balancing for distributed search. The submit() method in the HttpCommComponent class within SearchHandler contains code which splits a pipe character delimited string of shards and uses a LoadBalancedHttpSolrServer to send requests to them.
But the functionality is limited to the features of the LBHttpSolrServer, such as round-robin choosing of shards to query (although when the string of |-delimited shards is split, the resulting individual shards are shuffled), so I'm sure this could be improved upon. Alex On Tue, Mar 1, 2011 at 11:20 AM, Upayavira <[email protected]> wrote: > The SolrCloud doc suggests a request a shard syntax like this: > > > shards=localhost:8983/solr|localhost:8900/solr,localhost:7574/solr|localhost:7500/solr > > Where a pipe character (|) is used to provide load balancing facilities > for shards. I've looked in trunk but cannot find anything that looks > like it. > > Has this been implemented anywhere? If not, I'd like to have a go at > implementing it. > > The requirements as I see it are: > * randomised choice > * on an exception, try other hosts for that shard, until exhausted > > More complex would be: > * if a host is down, note it as such and try it again only after a > pre-defined interval. > > Any thoughts? > > Upayavira > > --- > Enterprise Search Consultant at Sourcesense UK, > Making Sense of Open Source > > > --------------------------------------------------------------------- > To unsubscribe, e-mail: [email protected] > For additional commands, e-mail: [email protected] > >
