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https://issues.apache.org/jira/browse/AVRO-1332?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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David McIntosh updated AVRO-1332:
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Attachment: AVRO-1332-missing-files-plus-defaults-patch.patch
AVRO-1332-defaults-patch-only.patch
I've noticed two problems with this patch. The first is that only the modified
files from the patch got committed into SVN. The newly added files were missed.
I also found a bug with default value handling that was introduced with this
patch. I adjusted the unit tests to trigger it and have made a fix.
The "defaults-patch-only" patch includes only the new fix. The
"missing-fles-plus-defaults-patch" patch includes the fix and the files from
the "-4" patch that didn't make it into svn.
If needed I can submit the defaults fix as a separate issue.
> 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
> Assignee: David McIntosh
> Priority: Minor
> Labels: performance
> Fix For: 1.7.6
>
> Attachments: AVRO-1332-2.patch, AVRO-1332-3.patch, AVRO-1332-4.patch,
> AVRO-1332-defaults-patch-only.patch,
> AVRO-1332-missing-files-plus-defaults-patch.patch, 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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