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From "Thiruvalluvan M. G. (JIRA)" <j...@apache.org>
Subject [jira] Updated: (AVRO-383) Optimizing ResolvingDecoder for default values
Date Tue, 02 Feb 2010 05:08:53 GMT

     [ https://issues.apache.org/jira/browse/AVRO-383?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
]

Thiruvalluvan M. G. updated AVRO-383:
-------------------------------------

    Resolution: Fixed
        Status: Resolved  (was: Patch Available)

Committed revision 905516. Thanks Doug for reviewing.

> Optimizing ResolvingDecoder for default values
> ----------------------------------------------
>
>                 Key: AVRO-383
>                 URL: https://issues.apache.org/jira/browse/AVRO-383
>             Project: Avro
>          Issue Type: Improvement
>          Components: java
>            Reporter: Thiruvalluvan M. G.
>            Assignee: Thiruvalluvan M. G.
>         Attachments: AVRO-383-new-test.patch, AVRO-383-new.patch, AVRO-383-test.patch,
AVRO-383.patch
>
>
> When the reader's and writer's schemas are records and the reader's schema has a field
with default value and the writer's schema doesn't have the field, the ResolvingDecoder keeps
the default value in a byte array. This byte array is in Json format. Moving this to Avro
binary format improves performance.
> Apply the test patch and try "Perf -M". Then apply the patch and run it again. On my
machine, the performance is three times the original.

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