[jira] [Created] (SOLR-4709) dir lock error if reopening cores to fast?

["Hoss Man (JIRA)" <ji...@apache.org>]

Hoss Man created SOLR-4709:
------------------------------

             Summary: dir lock error if reopening cores to fast?
                 Key: SOLR-4709
                 URL: https://issues.apache.org/jira/browse/SOLR-4709
             Project: Solr
          Issue Type: Bug
            Reporter: Hoss Man


While testing my patch for SOLR-4629, i noticed a really random error that i traced back to the core reload (do to config file replication) failed because the directory was locked.

>From what i can tell, the lock checking code in the SolrCore constructor isn't even suppose to be used in the reload situation where there is a "prev" core, except that in SolrCore.reload there is this check...

{noformat}
    if (!getNewIndexDir().equals(getIndexDir())) {
      // the directory is changing, don't pass on state
      prev = null;
    }
{noformat}


..i'm not really sure i understand this logic, or what exactly the source of the problem is, or if the lock checking code should just be changed to work a differnet way completley, but it seemed worthy of tracking in it's own jira.

log details to follow

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