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From Erick Erickson <>
Subject Re: SOLR Index in shared/Network folder
Date Fri, 27 Mar 2015 18:43:08 GMT
To pile on: If you're talking about pointing two Solr instances at the
_same_ index, it doesn't matter whether you are on NFS or not, you'll
have all sorts of problems. And if this is a SolrCloud installation,
it's particularly hard to get right.

Please do not do this unless you have a very good reason, and please
tell us what the reason is so we can perhaps suggest alternatives.


On Fri, Mar 27, 2015 at 8:08 AM, Walter Underwood <> wrote:
> Several years ago, I accidentally put Solr indexes on an NFS volume and it was 100X slower.
> If you have enough RAM, query speed should be OK, but startup time (loading indexes into
file buffers) could be really long. Indexing could be quite slow.
> wunder
> Walter Underwood
>  (my blog)
> On Mar 26, 2015, at 11:31 PM, Shawn Heisey <> wrote:
>> On 3/27/2015 12:06 AM, abhi Abhishek wrote:
>>> Greetings,
>>>      I am trying to use a network shared location as my index directory.
>>> are there any known problems in using a Network File System for running a
>>> SOLR Instance?
>> It is not recommended.  You will probably need to change the lockType,
>> ... the default "native" probably will not work, and you might need to
>> change it to "none" to get it working ... but that disables an important
>> safety mechanism that prevents index corruption.
>> Thanks,
>> Shawn

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