Solrcloud is a distributed search solution based on SOLR and zookeeper. CodeLibrary to become the distributed Deployment Solution for the next release (estimated to be 4.0. Cloud uses zookeeper as the configuration center to store distributed node information. Each node still uses an HTTP connection to obtain query results. Premise: the index has been created and split into slices, that is, shard. The following is an official introduction to solrcloud:
Solrcloud is the set of SOLR features that take SOLR's distributed search to the next level, enabling and simplifying the creation and use of SOLR clusters.
- Central configuration for the entire cluster
- Automatic Load Balancing and fail-over for queries
- Cluster state and layout stored in central system.
Zookeeper is integrated and used to coordinate and store the configuration of the cluster.
That is what has been done so far on trunk.
A second initiative has recently begun to finish the distributed indexing side of solrcloud.