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  1. Solr
  2. SOLR-5679

Shard splitting fails with ClassCastException on clusterstate.json with router as string

    Details

    • Type: Bug
    • Status: Closed
    • Priority: Major
    • Resolution: Fixed
    • Affects Version/s: 4.6, 4.6.1
    • Fix Version/s: 4.7
    • Component/s: SolrCloud
    • Labels:
      None

      Description

      SOLR-5246 added support for splitting collections configured with a router.field but the fix was not back-compatible.

      After upgrading an old SolrCloud cluster to 4.6 or 4.6.1, shard splitting can fail with the following message:

      ERROR o.a.s.handler.admin.CoreAdminHandler - ERROR executing split:
      java.lang.ClassCastException: java.lang.String cannot be cast to java.util.Map
      at org.apache.solr.handler.admin.CoreAdminHandler.handleSplitAction(CoreAdminHandler.java:285) [solr-core-4.6.1.jar:4.6.1 1560866 - mark - 2014-01-23 20:21:50]
      at org.apache.solr.handler.admin.CoreAdminHandler.handleRequestBody(CoreAdminHandler.java:193) [solr-core-4.6.1.jar:4.6.1 1560866 - mark - 2014-01-23 20:21:50]
      at org.apache.solr.handler.RequestHandlerBase.handleRequest(RequestHandlerBase.java:135) [solr-core-4.6.1.jar:4.6.1 1560866 - mark - 2014-01-23 20:21:50]

      This happens because the cluster state still contains the router as a string. The clusterstate.json is supposed to auto-upgrade if cluster state is upgraded but according to the user report that did not happen. In any case, we need to fix the core admin split.

        Activity

        Hide
        jira-bot ASF subversion and git services added a comment -

        Commit 1562872 from shalin@apache.org in branch 'dev/trunk'
        [ https://svn.apache.org/r1562872 ]

        SOLR-5679: SOLR-5679: Shard splitting fails with ClassCastException on collections upgraded from 4.5 and earlier versions

        Show
        jira-bot ASF subversion and git services added a comment - Commit 1562872 from shalin@apache.org in branch 'dev/trunk' [ https://svn.apache.org/r1562872 ] SOLR-5679 : SOLR-5679 : Shard splitting fails with ClassCastException on collections upgraded from 4.5 and earlier versions
        Hide
        jira-bot ASF subversion and git services added a comment -

        Commit 1562873 from shalin@apache.org in branch 'dev/branches/branch_4x'
        [ https://svn.apache.org/r1562873 ]

        SOLR-5679: Shard splitting fails with ClassCastException on collections upgraded from 4.5 and earlier versions

        Show
        jira-bot ASF subversion and git services added a comment - Commit 1562873 from shalin@apache.org in branch 'dev/branches/branch_4x' [ https://svn.apache.org/r1562873 ] SOLR-5679 : Shard splitting fails with ClassCastException on collections upgraded from 4.5 and earlier versions
        Hide
        shalinmangar Shalin Shekhar Mangar added a comment -

        This is fixed.

        I'll investigate the auto-upgrade of clusterstate.json separately.

        Show
        shalinmangar Shalin Shekhar Mangar added a comment - This is fixed. I'll investigate the auto-upgrade of clusterstate.json separately.
        Hide
        bretthoerner Brett Hoerner added a comment -

        Shalin Shekhar Mangar, is there a ticket for the auto-upgrade of clusterstate?

        Thanks a lot for this patch, btw!

        Show
        bretthoerner Brett Hoerner added a comment - Shalin Shekhar Mangar , is there a ticket for the auto-upgrade of clusterstate? Thanks a lot for this patch, btw!

          People

          • Assignee:
            shalinmangar Shalin Shekhar Mangar
            Reporter:
            shalinmangar Shalin Shekhar Mangar
          • Votes:
            0 Vote for this issue
            Watchers:
            3 Start watching this issue

            Dates

            • Created:
              Updated:
              Resolved:

              Development