[jira] [Updated] (HIVE-14555) JDBC:ClassNotFoundException when executing a map join query with UDF

["Stamatis Zampetakis (Jira)" <ji...@apache.org>]

     [ https://issues.apache.org/jira/browse/HIVE-14555?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]

Stamatis Zampetakis updated HIVE-14555:
---------------------------------------
    Fix Version/s:     (was: 1.1.0)

I cleared the fixVersion field since this ticket is still open. Please review this ticket and if the fix is already committed to a specific version please set the version accordingly and mark the ticket as RESOLVED.

According to the [JIRA guidelines|https://cwiki.apache.org/confluence/display/Hive/HowToContribute] the fixVersion should be set only when the issue is resolved/closed.

> JDBC:ClassNotFoundException when executing a map join query with UDF
> --------------------------------------------------------------------
>
>                 Key: HIVE-14555
>                 URL: https://issues.apache.org/jira/browse/HIVE-14555
>             Project: Hive
>          Issue Type: Bug
>          Components: Query Planning
>    Affects Versions: 1.1.0
>            Reporter: hizero
>            Assignee: hizero
>            Priority: Major
>         Attachments: HIVE-14555.patch
>
>
> when I submit a map join query with UDF using JDBC  and sometimes it throws:
> Error while compiling statement: FAILED: SemanticException Generate Map Join Task Error: Unable to find class: com.kingnetdc.hive.udf.FilterByMap Serialization trace: genericUDF (org.apache.hadoop.hive.ql.plan.ExprNodeGenericFuncDesc) colExprMap (org.apache.hadoop.hive.ql.exec.SelectOperator) childOperators (org.apache.hadoop.hive.ql.exec.FilterOperator) childOperators (org.apache.hadoop.hive.ql.exec.JoinOperator) reducer (org.apache.hadoop.hive.ql.plan.ReduceWork) reduceWork (org.apache.hadoop.hive.ql.plan.MapredWork)
>  I have found the fact that it fails at cloning plan when invoking Utilities.deserializePlan.
> An existing thread deals with the query and its static threadlocal variable,cloningQueryPlanKryo has been initialed at most once per thread.When this thread registered UDF setting in aux_jar_paths  it wont reinitialize the cloningQueryPlanKryo.



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