Hoss Man created SOLR-11988:
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Summary: FullSolrCloudDistribCmdsTest failures due to SolrCore
initializating incorrectly thinking index directory already exists?
Key: SOLR-11988
URL: https://issues.apache.org/jira/browse/SOLR-11988
Project: Solr
Issue Type: Bug
Security Level: Public (Default Security Level. Issues are Public)
Reporter: Hoss Man
There's been quite a few jenkins failures from FullSolrCloudDistribCmdsTest
that all seem to follow a similar pattern:
* Failure manifests as "Could not find collection:collection2"
* Failing seeds _frequently_ reproduce, but aren't guaranteed to
* Root cause can be traced back to the collection creation failing because one
of more replica cores failed due to the brand new (Solr)IndexWriter expects to
find an existing segments file
** SolrCore should have already created an (empty) index in
{{SolrCore.initIndex(...)}}
** The fact that the {{SolrIndexWrite}} throws this exception in it's
constructor suggests that the earlier call to {{SolrCore.initIndex(...)}} is
not functioning reliably
** Based on some experimenting i've done, it seems like the underlying problem
is that in {{SolrCore.initIndex(...)}} the DirectoryFactory can "lie" about
wether a directory already exists.
More details to follow in comments.
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