On Mar 8, 2013, at 12:23 AM, Jam Luo <cooljam2...@gmail.com> wrote: > Hi > I use the 4.2-snapshot version, git sha id is > f4502778b263849a827e89e45d37b33861f225f9 . I deploy a cluster by SolrCloud, > there is 3 node,one core per node,they are in defferent shard. the JVM > argument is -DnumShards=3. > Now I must add mechine and add shard, but I start new solr instance and > change the argument numShards=4, the count of shard do not change. > > How to add shard in this version? In 4.0, I increase numShards, the new > solr instance will in a new shard, but now it is inoperative.
Unless you control sharding yourself, you cannot currently add shards without some reindexing. Shard splitting is a feature that is coming soon though. You can easily add replicas currently, but not shards. You can control shards yourself by not using numShards. - Mark
