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https://issues.apache.org/jira/browse/DRILL-6762?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=16627862#comment-16627862
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Kunal Khatua commented on DRILL-6762:
-------------------------------------

The issue was introduced with DRILL-6053 
([https://github.com/apache/drill/commit/590a72bc667f6bc373130bcae58c22c11f13edaf).]
 There seems to be a race condition because sometimes the version number is not 
set correctly, so the registries are not updated.

> Dynamic UDFs registered on one Drillbit are not visible on other Drillbits
> --------------------------------------------------------------------------
>
>                 Key: DRILL-6762
>                 URL: https://issues.apache.org/jira/browse/DRILL-6762
>             Project: Apache Drill
>          Issue Type: Bug
>          Components: Functions - Drill
>    Affects Versions: 1.14.0
>            Reporter: Kunal Khatua
>            Assignee: Arina Ielchiieva
>            Priority: Critical
>             Fix For: 1.15.0
>
>
> Originally Reported : 
> https://stackoverflow.com/questions/52480160/dynamic-udf-in-apache-drill-cluster
> When using a 4-node Drill 1.14 cluster, UDF jars registered on one node are 
> not usable on other nodes despite the {{/registry}} and ZK showing the UDFs 
> as registered.
> This was previously working on 1.14.0



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