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https://issues.apache.org/jira/browse/AVRO-2907?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=17168225#comment-17168225
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Paul Tzen commented on AVRO-2907:
---------------------------------
Submitted a PR here: [https://github.com/apache/avro/pull/937]
> Ruby schema.single_object_schema_fingerprint is reversed
> --------------------------------------------------------
>
> Key: AVRO-2907
> URL: https://issues.apache.org/jira/browse/AVRO-2907
> Project: Apache Avro
> Issue Type: Bug
> Components: ruby
> Affects Versions: 1.10.0
> Reporter: Paul Tzen
> Priority: Minor
>
> The Ruby
> [schema.single_object_schema_fingerprint|https://github.com/apache/avro/blob/release-1.10.0/lang/ruby/lib/avro/schema.rb#L180]
> method (originally added in [this
> PR|https://github.com/apache/avro/pull/317]) seems to return an incorrect
> fingerprint, which is reversed from what the [Java
> implementation|https://github.com/apache/avro/blob/release-1.10.0/lang/java/avro/src/main/java/org/apache/avro/SchemaNormalization.java#L64]
> returns.
> I believe that the cause is the unnecessary reverse array traversal order on
> [this
> line|https://github.com/apache/avro/blob/release-1.10.0/lang/ruby/lib/avro/schema.rb#L184]
> during the bit masking + shifting operation for converting the fingerprint
> into a little endian byte array.
> I'll also drop a comment in the [original
> PR|https://github.com/apache/avro/pull/317] that implements this Ruby
> functionality and see if there's more to the story.
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