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https://issues.apache.org/jira/browse/AVRO-798?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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Doug Cutting updated AVRO-798:
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Attachment: AVRO-798.patch
Here's a patch that implements this.
> add checksums to Snappy codec
> -----------------------------
>
> Key: AVRO-798
> URL: https://issues.apache.org/jira/browse/AVRO-798
> Project: Avro
> Issue Type: Improvement
> Components: java, spec
> Reporter: Doug Cutting
> Assignee: Doug Cutting
> Fix For: 1.5.1
>
> Attachments: AVRO-798.patch
>
>
> A checksum might be included with each compressed block to better detect
> errors. While some filesystems (e.g. HDFS) may checksum data, not all do.
> Data files may also accumulate errors when copied between filesystems. For
> back-compatibility, we cannot easily add checksums to existing data files,
> but a new codec provides us with the opportunity to do this.
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