[jira] [Created] (SOLR-12533) Collection collection fails if metrics are called during core creation

["Peter Cseh (JIRA)" <ji...@apache.org>]

Peter Cseh created SOLR-12533:
---------------------------------

             Summary: Collection collection fails if metrics are called during core creation
                 Key: SOLR-12533
                 URL: https://issues.apache.org/jira/browse/SOLR-12533
             Project: Solr
          Issue Type: Bug
      Security Level: Public (Default Security Level. Issues are Public)
          Components: SolrCloud
    Affects Versions: 7.0
            Reporter: Peter Cseh


There is a race condition in SorlCore's constructor:
- the metrics.indexSize call implicitly creates a data/index folder for that core
- if the data/index folder exists, no segments file will be created
- the searcher won't start up if there are no segments file in the data/index folder

This is probably the root cause for SOLR-2130 and SOLR-2801 as well.



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