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From "Jason Rutherglen (JIRA)" <>
Subject [jira] Created: (SOLR-1277) Implement a SOLR specific naming service (using Zookeeper)
Date Tue, 14 Jul 2009 17:41:14 GMT
Implement a SOLR specific naming service (using Zookeeper)

                 Key: SOLR-1277
             Project: Solr
          Issue Type: New Feature
    Affects Versions: 1.4
            Reporter: Jason Rutherglen
            Priority: Minor
             Fix For: 1.5

The goal is to give SOLR server clusters self-healing attributes
where if a server fails, indexing and searching don't stop and
all of the partitions remain searchable. For configuration, the
ability to centrally deploy a new configuration without servers
going offline.

We can start with basic failover and start from there?


* Automatic failover (i.e. when a server fails, clients stop
trying to index to or search it)

* Centralized configuration management (i.e. new solrconfig.xml
or schema.xml propagates to a live SOLR cluster)

* Optionally allow shards of a partition to be moved to another
server (i.e. if a server gets hot, move the hot segments out to
cooler servers). Ideally we'd have a way to detect hot segments
and move them seamlessly. With NRT this becomes somewhat more
difficult but not impossible?

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