It's fairly meaningless from a user perspective, but it happens when an index 
is replicated that cannot be simply merged with the existing index files and 
needs a new directory.

- Mark

On May 15, 2013, at 5:38 PM, Bill Au <bill.w...@gmail.com> wrote:

> I am running 2 separate 4.3 SolrCloud clusters.  On one of them I noticed
> the file data/index.properties on the replica nodes where the index
> directory is named "index.<value of index property in index.properties>".
> On the other cluster, the index directory is just named "index".
> 
> Under what condition is index.properties created?  I am trying to
> understand why there is a difference between my 2 SolrCloud clusters.
> 
> Bill

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