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https://issues.apache.org/jira/browse/HBASE-16242?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=15384181#comment-15384181
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Sean Busbey commented on HBASE-16242:
-------------------------------------

we get it from Hadoop in most module (those are all the 1.7.4 versions), and in 
the hbase-spark module we have direct use of 1.7.6 as Ben mentions and we pull 
in the 1.7.7 versions from the Spark version we use. The final assembly ends up 
with 1.7.6 instead of the version Hadoop ships with, as well, since the direct 
dependency in the hbase-spark module gets primacy.

It's kind of ugly, this mismatch. those are all different minor versions 
according to Avro's versioning rules. Luckily the project is pretty strict 
about compatibility. That said, I haven't checked these versions for known 
issues wrt mixing.

> Upgrade Avro
> ------------
>
>                 Key: HBASE-16242
>                 URL: https://issues.apache.org/jira/browse/HBASE-16242
>             Project: HBase
>          Issue Type: Task
>          Components: dependencies
>            Reporter: Ben McCann
>
> I'd like to see Avro upgraded to 1.8.1 or at the very least 1.7.7



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