[jira] [Created] (HDFS-9557) Reduce object allocation in PB conversion

[Daryn Sharp (JIRA)]

Daryn Sharp created HDFS-9557:
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             Summary: Reduce object allocation in PB conversion
                 Key: HDFS-9557
                 URL: https://issues.apache.org/jira/browse/HDFS-9557
             Project: Hadoop HDFS
          Issue Type: Improvement
          Components: hdfs-client
    Affects Versions: 2.8.0
            Reporter: Daryn Sharp
            Assignee: Daryn Sharp


PB conversions use {{ByteString.copyFrom}} to populate the builder.  
Unfortunately this creates unique instances for empty arrays instead of 
returning the singleton {{ByteString.EMPTY}}.



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