data/index naming format

[Aditya Sakhuja <ad...@gmail.com>]

Hello,

I am running solr 4.1 for now, and am confused about the structure and
naming of the contents of the data dir. I do not see the index.properties
being generated on a fresh solr node start either.

Can someone clarify when should one expect to see

data/index vs. data/index.<timestamp>, and the index.properties along with
the second version.

-- 
Regards,
-Aditya Sakhuja

Re: data/index naming format

[Jason Hellman <jh...@innoventsolutions.com>]

The circumstance I've most typically seen the index.<timestamp> show up is when an update is sent to a slave server.  The replication then appears to preserve the updated slave index in a separate folder while still respecting the correct data from the master.  

On Sep 5, 2013, at 8:03 PM, Shawn Heisey <so...@elyograg.org> wrote:

> On 9/5/2013 6:48 PM, Aditya Sakhuja wrote:
>> I am running solr 4.1 for now, and am confused about the structure and
>> naming of the contents of the data dir. I do not see the index.properties
>> being generated on a fresh solr node start either.
>> 
>> Can someone clarify when should one expect to see
>> 
>> data/index vs. data/index.<timestamp>, and the index.properties along with
>> the second version.
> 
> I have never seen an index.properties file get created.  I've used
> versions from 1.4.0 through 4.4.0.
> 
> Generally when you have an index.<timestamp> directory, it's because
> you're doing replication.  There may be other circumstances when it
> appears, but I do not know what those are.
> 
> As for the other files in the index directory, here's Lucene's file
> format documentation:
> 
> http://lucene.apache.org/core/4_4_0/core/org/apache/lucene/codecs/lucene42/package-summary.html#package_description
> 
> Thanks,
> Shawn
> 

Re: data/index naming format

[Shawn Heisey <so...@elyograg.org>]

On 9/5/2013 6:48 PM, Aditya Sakhuja wrote:
> I am running solr 4.1 for now, and am confused about the structure and
> naming of the contents of the data dir. I do not see the index.properties
> being generated on a fresh solr node start either.
> 
> Can someone clarify when should one expect to see
> 
> data/index vs. data/index.<timestamp>, and the index.properties along with
> the second version.

I have never seen an index.properties file get created.  I've used
versions from 1.4.0 through 4.4.0.

Generally when you have an index.<timestamp> directory, it's because
you're doing replication.  There may be other circumstances when it
appears, but I do not know what those are.

As for the other files in the index directory, here's Lucene's file
format documentation:

http://lucene.apache.org/core/4_4_0/core/org/apache/lucene/codecs/lucene42/package-summary.html#package_description

Thanks,
Shawn