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https://issues.apache.org/jira/browse/DRILL-5044?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=15701673#comment-15701673
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Arina Ielchiieva commented on DRILL-5044:
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The reason of this failure is that when update to remote UDFs registry failed
with VersionMismatchException, retry logic was applied. Even though after
retry, update was successful, jars were removed from remote UDFs area in
finally block.
> After the dynamic registration of multiple jars simultaneously not all UDFs
> were registered
> -------------------------------------------------------------------------------------------
>
> Key: DRILL-5044
> URL: https://issues.apache.org/jira/browse/DRILL-5044
> Project: Apache Drill
> Issue Type: Bug
> Components: Functions - Drill
> Affects Versions: 1.9.0
> Reporter: Roman
> Assignee: Arina Ielchiieva
>
> I tried to register 21 jars simultaneously (property 'udf.retry-attempts' =
> 30) and not all jars were registered. As I see in output, all function were
> registered and /staging directory was empty, but not all of jars were moved
> into /registry directory.
> For example, after simultaneously registration I saw "The following UDFs in
> jar test-1.1.jar have been registered: [test1(VARCHAR-REQUIRED)" message, but
> this jar was not in /registry directory. When I tried to run function test1,
> I got this error: "Error: SYSTEM ERROR: SqlValidatorException: No match found
> for function signature test1(<CHARACTER>)". And when I tried to reregister
> this jar, I got "Jar with test-1.1.jar name has been already registered".
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