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From "Rui Li (JIRA)" <j...@apache.org>
Subject [jira] [Updated] (HIVE-14139) NPE dropping permanent function
Date Mon, 04 Jul 2016 13:14:11 GMT

     [ https://issues.apache.org/jira/browse/HIVE-14139?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
]

Rui Li updated HIVE-14139:
--------------------------
    Attachment: HIVE-14139.2.patch

Patch v2 makes the persistent map of className -> refCount. This way, we don't have to
load function resource if not registering to session. And we don't have to load the resource
just in order to drop the function.
Also adds a UT to cover this.

> NPE dropping permanent function
> -------------------------------
>
>                 Key: HIVE-14139
>                 URL: https://issues.apache.org/jira/browse/HIVE-14139
>             Project: Hive
>          Issue Type: Bug
>            Reporter: Rui Li
>            Assignee: Rui Li
>         Attachments: HIVE-14139.1.patch, HIVE-14139.2.patch
>
>
> To reproduce:
> 1. Start a CLI session and create a permanent function.
> 2. Exit current CLI session.
> 3. Start a new CLI session and drop the function.
> Stack trace:
> {noformat}
> FAILED: error during drop function: java.lang.NullPointerException
> 	at org.apache.hadoop.hive.ql.exec.Registry.removePersistentFunctionUnderLock(Registry.java:513)
> 	at org.apache.hadoop.hive.ql.exec.Registry.unregisterFunction(Registry.java:501)
> 	at org.apache.hadoop.hive.ql.exec.FunctionRegistry.unregisterPermanentFunction(FunctionRegistry.java:1532)
> 	at org.apache.hadoop.hive.ql.exec.FunctionTask.dropPermanentFunction(FunctionTask.java:228)
> 	at org.apache.hadoop.hive.ql.exec.FunctionTask.execute(FunctionTask.java:95)
> 	at org.apache.hadoop.hive.ql.exec.Task.executeTask(Task.java:197)
> 	at org.apache.hadoop.hive.ql.exec.TaskRunner.runSequential(TaskRunner.java:100)
> 	at org.apache.hadoop.hive.ql.Driver.launchTask(Driver.java:1860)
> 	at org.apache.hadoop.hive.ql.Driver.execute(Driver.java:1564)
> 	at org.apache.hadoop.hive.ql.Driver.runInternal(Driver.java:1316)
> 	at org.apache.hadoop.hive.ql.Driver.run(Driver.java:1085)
> 	at org.apache.hadoop.hive.ql.Driver.run(Driver.java:1073)
> 	at org.apache.hadoop.hive.cli.CliDriver.processLocalCmd(CliDriver.java:232)
> {noformat}



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