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https://issues.apache.org/jira/browse/HIVE-22397?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=16967134#comment-16967134
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Naveen Gangam commented on HIVE-22397:
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[~Rajkumar Singh] Are you running this reproducer from Hive CLI or from
beeline? The {{ADD JAR}} is a carry-over from the hive CLI fat client era. Its
not really ideal to be used in the beeline/hiveserver2 model.
The recommended way to configure custom UDFs and SerDes with HiveServer to is
to use {{hive.aux.jars.path}} or {{hive.reloadable.aux.jars.path}} to have a
user-configurable location for such central resources on the server side. Once
configured, the users can just drop jars into this directory/path, without
having to restart the HS2. Then there would not be a need for {{add jars}} from
any of the beeline sessions. Please refer to the documentation below.
https://docs.cloudera.com/documentation/enterprise/5-9-x/topics/cm_mc_hive_udf.html#concept_t1x_srm_2r
> "describe table" statement for the table backed by custom storage handler
> fail with CNF
> ----------------------------------------------------------------------------------------
>
> Key: HIVE-22397
> URL: https://issues.apache.org/jira/browse/HIVE-22397
> Project: Hive
> Issue Type: Bug
> Components: Hive
> Affects Versions: 3.1.2
> Reporter: Rajkumar Singh
> Assignee: Rajkumar Singh
> Priority: Major
> Attachments: HIVE-22397.patch
>
>
> Steps to Repro:
> {code:java}
> 1) describe customsdtable;
> 2) ADD JAR hdfs:///user/hive/customsdtable.jar;
> 3) describe customsdtable;
> CNF is expected for #1 but even adding the custome serde, hive fail with
> following exception for statement #3
> Error: Error while processing statement: FAILED: Execution Error, return code
> 1 from org.apache.hadoop.hive.ql.exec.DDLTask.
> java.lang.ClassNotFoundException
> {code}
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