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Posted to issues@tez.apache.org by "David Mollitor (Jira)" <ji...@apache.org> on 2021/01/28 21:43:00 UTC

[jira] [Created] (TEZ-4275) Use Google Guava Intern Facility

David Mollitor created TEZ-4275:
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             Summary: Use Google Guava Intern Facility
                 Key: TEZ-4275
                 URL: https://issues.apache.org/jira/browse/TEZ-4275
             Project: Apache Tez
          Issue Type: Improvement
            Reporter: David Mollitor
            Assignee: David Mollitor


Google Guava has a pretty cool Interner facility.

 
 * More memory efficient than current offering.  Map contains a weak key and a static dummy value (current implementation uses a weak value)
 * Current implementation has a single lock around the entire data structure.  Google segments their data structure into (default: 4) segments for better concurrency
 * All the other thoughtful stuff Google has added into this feature



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