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From Walter Underwood <>
Subject Re: Setting Solr data dir isn't really working (6.3.0)
Date Fri, 24 Feb 2017 18:42:58 GMT
Running with this, which works they way we want.


Walter Underwood  (my blog)

> On Feb 24, 2017, at 10:08 AM, Walter Underwood <> wrote:
> Dang it. I know better than that, but I was blindly following the docs. Which means the
docs have a problem, since they are recommending something that should not be recommended.
> Putting variable data on a different volume is very common. Official support for that
goes at least as far back as Unix V7 (1979), with /var. It should be easy to do in Solr.
> I expected to see the shard names as directories under /solr/data, but I now remember
that I need to set that with a variable.
> Time to delete everything and rebuild everything again.
> wunder
> Walter Underwood
>  (my blog)
>> On Feb 24, 2017, at 8:30 AM, Shawn Heisey <> wrote:
>> On 2/23/2017 6:41 PM, Walter Underwood wrote:
>>> I did this in the solrconfig.xml for both collections (tutors and questions).

>>> <dataDir>/solr/data</dataDir>
>>> I deleted the old collection indexes, reloaded, restarted, and created a new
collection for “tutors". And I see this on the disk.
>> Setting dataDir in solrconfig.xml, especially to an absolute path like
>> that, is generally not a good idea.  It's VERY bad if that config will
>> be used by multiple cores.  The best place to do it is in
>>, so it's part of the core definition and independent of
>> config/schema.  IMHO it's best to make it a relative path.  Below is a
>> file from my dev system running 6.3.0, in a
>> "cores/sparkinc_0" directory under the solr home.
>> I do not see anything broken in the directory listings you provided. 
>> What do you see that is misplaced?
>> With SolrCloud, I wouldn't be setting dataDir *at all* -- I would let
>> Solr handle that, mostly because the config for SolrCloud is not on the
>> disk and therefore dataDir doesn't need to be separated from instanceDir.
>> #Written by CorePropertiesLocator
>> #Mon Feb 06 19:24:18 UTC 2017
>> name=sparkinclive
>> loadonStartup=false
>> dataDir=../../data/sparkinc_0
>> transient=false
>> Thanks,
>> Shawn

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