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Posted to dev@avro.apache.org by "David McIntosh (JIRA)" <ji...@apache.org> on 2013/09/09 07:09:56 UTC
[jira] [Updated] (AVRO-1332) Improve C# DatumReader performance
[ https://issues.apache.org/jira/browse/AVRO-1332?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]
David McIntosh updated AVRO-1332:
---------------------------------
Affects Version/s: (was: 1.7.4)
1.7.5
Hadoop Flags: (was: Incompatible change)
> Improve C# DatumReader performance
> ----------------------------------
>
> Key: AVRO-1332
> URL: https://issues.apache.org/jira/browse/AVRO-1332
> Project: Avro
> Issue Type: Improvement
> Components: csharp
> Affects Versions: 1.7.5
> Reporter: David McIntosh
> Priority: Minor
> Labels: performance
> Attachments: AVRO-1332.patch
>
>
> The current implementations of the C# datum readers perform resolution of the reader and writer schema on every call to Read. In my tests this was causing it to perform poorly when reading a large number of records (slower than parsing the same data from delimited text files). It would be more efficient if the reader only needed to resolve the schemas once.
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