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https://issues.apache.org/jira/browse/AVRO-1142?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13455175#comment-13455175
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Doug Cutting commented on AVRO-1142:
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Sorry for the confusion this created!
How would you propose we better say this? Perhaps, "followed by the 4-byte,
big-endian CRC32 checksum of the uncompressed block"?
> Specification is misleading in regards to CRC32 checksum of Snappy blocks
> -------------------------------------------------------------------------
>
> Key: AVRO-1142
> URL: https://issues.apache.org/jira/browse/AVRO-1142
> Project: Avro
> Issue Type: Bug
> Components: spec
> Reporter: Martin Nagy
>
> The specification says:
> ??Each compressed block is followed by its 4-byte, big-endian CRC32
> checksum.??
> This, in my opinion, suggests that the CRC32 checksum is calculated from the
> compressed block, when in fact it is computed from the block before
> compression (as it is implemented in java). I've implemented a snappy codec
> for C++ and had trouble with this :(
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