Hoss,
The comment at the end:
'Alternately: you can specifiy the solr.data.dir system property at run time'
should yield the exact result I'm looking for - runtime configuration of
multiple instances.
Thanks for the full reply.
Regards,
Tracy
On Jul 18, 2010, at 3:23 PM, Chris Hostetter wrote:
> : I think the history of that might involve back compat issues.
>
> Correct.
>
> Tracy: the *default* location for dataDir, if you have nothing specified
> in your solrconfig.xml is to be relative your Solr Home ... but if you
> specify a path, that path is resolved relative the CWD.
>
> One of the use cases for this is to have the same solr home dire used by
> many instances of Solr, each with a distinct data dir (but you can just
> change the working dir)
>
> If you look ta the trunk version of solr, the example dataDir config looks
> like this...
>
> <dataDir>${solr.data.dir:}</dataDir>
>
> ...which results in a no dataDir being specified (unless you set the
> solr.data.dir system property). But in the releases up to an including
> 1.4.1 a differnet (poorer) choice was made for the example value.
>
> : > "Used to specify an alternate directory to hold all index data other
> : > than the default ./data under the Solr home.".
>
> I agree, that wording is somwhat confusing -- particularly since the
> config then specifies a value which will usualy be the data dir in the
> default solr home dir if solr.solr.home is *not* specified -- but that
> value is not the "default"
>
> Bottom Line: if you change your solrconfig.xml to use the syntax i listed
> above, it should do what you want. Alternately: you can specifiy the
> solr.data.dir system property at run time, and have total control over
> where the data dir is at runtime, indepndent of where the solr home dir
> is.
>
> -Hoss
>
