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Posted to hdfs-issues@hadoop.apache.org by "Daryn Sharp (JIRA)" <ji...@apache.org> on 2015/12/15 20:18:47 UTC

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

     [ https://issues.apache.org/jira/browse/HDFS-9557?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]

Daryn Sharp updated HDFS-9557:
------------------------------
    Attachment: HDFS-9557.patch

very simple patch

> 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
>         Attachments: HDFS-9557.patch
>
>
> 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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