[jira] [Created] (SOLR-18183) All EphemeralDirectoryFactory should permit LockType.NONE

["David Smiley (Jira)" <ji...@apache.org>]

David Smiley created SOLR-18183:
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             Summary: All EphemeralDirectoryFactory should permit LockType.NONE
                 Key: SOLR-18183
                 URL: https://issues.apache.org/jira/browse/SOLR-18183
             Project: Solr
          Issue Type: Improvement
            Reporter: David Smiley


RAMDirectoryFactory and ByteBuffersDirectoryFactory do not permit LockType.NONE -- but let's support that.  MockDirectoryFactory returns NONE with no complaint.  The comment their says it's "unused"... which is curious.

This change is motivated by the experienced observation that UpdateLog.initTlogDir hard-codes the choice of NONE when it temporarily creates a a Directory to aid in cleaning up its own files.  A test configuring RAMDirectoryFactory & updateLog configured, doesn't work.  Granted, it's questionable why an UpdateLog is enabled in the first place when an ephemeral directory is in use.  Arguably (separate issue), perhaps the DirectoryFactory should be responsible for also managing the UpdateLog creation so as to ensure one isn't created when it's not sensible.



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