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Posted to common-dev@hadoop.apache.org by "Thomas Demoor (JIRA)" <ji...@apache.org> on 2015/09/08 19:29:46 UTC

[jira] [Created] (HADOOP-12387) Improve S3AFastOutputStream memory management

Thomas Demoor created HADOOP-12387:
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             Summary: Improve S3AFastOutputStream memory management
                 Key: HADOOP-12387
                 URL: https://issues.apache.org/jira/browse/HADOOP-12387
             Project: Hadoop Common
          Issue Type: Sub-task
            Reporter: Thomas Demoor
            Assignee: Thomas Demoor


The use of ByteArrayOutputStream causes unexpected memory copies that causes unintuitive memory usage for certain combinations of the configuration parameters. Replacing it by more fine grained memory buffer management would fix this, reduce memory usage and eliminate a memory copy.



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