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From "Ben McCann (JIRA)" <j...@apache.org>
Subject [jira] [Commented] (HADOOP-12527) Upgrade Avro dependency to 1.7.7
Date Mon, 18 Jul 2016 22:57:21 GMT

    [ https://issues.apache.org/jira/browse/HADOOP-12527?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=15383245#comment-15383245
] 

Ben McCann commented on HADOOP-12527:
-------------------------------------

Note that there are no incompatible changes introduced in Avro 1.7.5-1.7.7. See https://github.com/apache/avro/blob/master/CHANGES.txt

> Upgrade Avro dependency to 1.7.7
> --------------------------------
>
>                 Key: HADOOP-12527
>                 URL: https://issues.apache.org/jira/browse/HADOOP-12527
>             Project: Hadoop Common
>          Issue Type: Improvement
>          Components: build
>    Affects Versions: 2.7.1
>            Reporter: Jonathan Kelly
>
> Hadoop has depended upon Avro 1.7.4 for a couple of years now (see HADOOP-9672), but
Apache Spark depends upon what is currently the latest version of Avro (1.7.7).
> This can cause issues if Spark is configured to include the full Hadoop classpath, as
the classpath would then contain both Avro 1.7.4 and 1.7.7, with the 1.7.4 classes possibly
winning depending on ordering. Here is an example of this issue: http://stackoverflow.com/questions/33159254/avro-error-on-aws-emr/33403111#33403111
> Would it be possible to upgrade Hadoop's Avro dependency to 1.7.7 now?



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