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  1. Solr
  2. SOLR-4478

Allow cores to specify a named config set in non-SolrCloud mode

    Details

    • Type: Improvement
    • Status: Closed
    • Priority: Major
    • Resolution: Fixed
    • Affects Version/s: 4.2, 6.0
    • Fix Version/s: 4.8, 6.0
    • Component/s: None
    • Labels:
      None

      Description

      Part of moving forward to "the new way", after SOLR-4196 etc... I propose an additional parameter specified on the <core> node in solr.xml or as a parameter in the "discovery" mode core.properties file, call it configSet, where the value provided is a path to a directory, either absolute or relative. Really, this is as though you copied the conf directory somewhere to be used by more than one core.

      Straw-man: There will be a directory <solr_home>/configsets which will be the default. If the configSet parameter is, say, "myconf", then I'd expect a directory named "myconf" to exist in <solr_home>/configsets, which would look something like
      <solr_home>/configsets/myconf/schema.xml
      solrconfig.xml
      stopwords.txt
      velocity
      velocity/query.vm

      etc.

      If multiple cores used the same configSet, schema, solrconfig etc. would all be shared (i.e. shareSchema="true" would be assumed). I don't see a good use-case for not sharing schemas, so I don't propose to allow this to be turned off. Hmmm, what if shareSchema is explicitly set to false in the solr.xml or properties file? I'd guess it should be honored but maybe log a warning?

      Mostly I'm putting this up for comments. I know that there are already thoughts about how this all should work floating around, so before I start any work on this I thought I'd at least get an idea of whether this is the way people are thinking about going.

      Configset can be either a relative or absolute path, if relative it's assumed to be relative to <solr_home>.

      Thoughts?

        Attachments

        1. SOLR-4478.patch
          29 kB
          Erick Erickson
        2. SOLR-4478.patch
          29 kB
          Erick Erickson
        3. SOLR-4478-take2.patch
          71 kB
          Alan Woodward
        4. SOLR-4478-take2.patch
          71 kB
          Alan Woodward
        5. SOLR-4478-take2.patch
          71 kB
          Alan Woodward
        6. SOLR-4478-take2.patch
          88 kB
          Alan Woodward
        7. solr.log
          53 kB
          Shalin Shekhar Mangar

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              • Assignee:
                romseygeek Alan Woodward
                Reporter:
                erickerickson Erick Erickson
              • Votes:
                5 Vote for this issue
                Watchers:
                15 Start watching this issue

                Dates

                • Created:
                  Updated:
                  Resolved: