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Posted to server-dev@james.apache.org by "Luc DUZAN (JIRA)" <se...@james.apache.org> on 2017/07/10 12:02:00 UTC

[jira] [Created] (JAMES-2095) Optimize IO upon saving Attachment in Cassandra

Luc DUZAN created JAMES-2095:
--------------------------------

             Summary: Optimize IO upon saving Attachment in Cassandra
                 Key: JAMES-2095
                 URL: https://issues.apache.org/jira/browse/JAMES-2095
             Project: James Server
          Issue Type: Improvement
          Components: cassandra
            Reporter: Luc DUZAN


In CassandraAttachmentMapper::asyncStoreAttachment:

 - We wrap a stream in an array without specifying the size while we know it -> GC and many copies and reallocations
 - We generate a byte array from a stream from a byte array

This can be easily optimised.



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