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https://issues.apache.org/jira/browse/HIVE-11288?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=14634411#comment-14634411
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Yongzhi Chen commented on HIVE-11288:
-------------------------------------
The failure may not be related. It failed on build 4640 too. Build 4640 does
not have this patch.
> Avro SerDe InstanceCache returns incorrect schema
> -------------------------------------------------
>
> Key: HIVE-11288
> URL: https://issues.apache.org/jira/browse/HIVE-11288
> Project: Hive
> Issue Type: Bug
> Reporter: Greg Phillips
> Attachments: HIVE-11288.2.patch, HIVE-11288.patch
>
>
> To reproduce this error, take two fields in an avro schema document matching
> the following:
> "type" : { "type": "array", "items": [ "null", { "type": "map", "values": [
> "null", "string" ] } ] }
> "type" : { "type": "map", "values": [ "null" , { "type": "array", "items": [
> "null" , "string"] } ] }
> After creating two tables in hive with these schemas, the describe statement
> on each of them will only return the schema for the first one loaded. This
> is due to a hashCode() collision in the InstanceCache.
> A patch will be included in this ticket shortly which removes the hashCode
> call from the InstanceCache's internal HashMap, and instead provides the
> entire schema object.
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