Mark Bennett created SOLR-4442:
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             Summary: Developer Curb Appeal: Consider bringing up Solr in Cloud 
mode by default, or enable it with a single switch, or other system trivial 
setting
                 Key: SOLR-4442
                 URL: https://issues.apache.org/jira/browse/SOLR-4442
             Project: Solr
          Issue Type: Improvement
          Components: SolrCloud
    Affects Versions: 4.1
            Reporter: Mark Bennett
             Fix For: 4.2


There's some talk that the days of single node search is dead.  I don't quite 
agree, but many people are doing multinode deployments, and other engines are 
assuming distributed search by default.

Should we consider giving Solr this ability?  Perhaps in 5.0?

Or at a minimum, have some other single switch or system setting or separate 
jar that causes Solr to do all of it's magic Zookeeper stuff by default.

I've logged some other JIRA items to take care of some of the other things that 
you currently need to specify when starting up 4.1.  Until reasonable defaults 
can be worked out, this auto-cloud mode wouldn't make as much sense.

Is there any harm in bringing up Solr with ZK even if you're only working on a 
single machine?  (assuming all the defaults are taken care of)

Or perhaps there would be some switches, effectively:
* -cloud = assume cloud mode
* -dev_cloud = turn on multicast, autoport selection
* -laptop_cloud = assume we're doing cloud, autoports, etc, except limit it to 
localhost

I realize there's a lot of technical details here, but the current Solr startup 
syntax and directories overhead makes it less appealing.

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