[jira] [Comment Edited] (HIVE-6495) TableDesc.getDeserializer() should use correct classloader when calling Class.forName()

["Ashutosh Chauhan (JIRA)" <ji...@apache.org>]

    [ https://issues.apache.org/jira/browse/HIVE-6495?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13911816#comment-13911816 ] 

Ashutosh Chauhan edited comment on HIVE-6495 at 2/25/14 6:13 PM:
-----------------------------------------------------------------

+1


was (Author: ashutoshc):
(+)1

> TableDesc.getDeserializer() should use correct classloader when calling Class.forName()
> ---------------------------------------------------------------------------------------
>
>                 Key: HIVE-6495
>                 URL: https://issues.apache.org/jira/browse/HIVE-6495
>             Project: Hive
>          Issue Type: Bug
>          Components: Serializers/Deserializers
>            Reporter: Jason Dere
>            Assignee: Jason Dere
>         Attachments: HIVE-6495.1.patch
>
>
> User is getting an error with the following stack trace below.  It looks like when Class.forName() is called, it may not be using the correct class loader (JavaUtils.getClassLoader() is used in other contexts when the loaded jar may be required).
> {noformat}
> FAILED: RuntimeException org.apache.hadoop.hive.ql.metadata.HiveException: Failed with exception java.lang.ClassNotFoundException: my.serde.ColonSerdejava.lang.RuntimeException: java.lang.ClassNotFoundException: my.serde.ColonSerde
>     at org.apache.hadoop.hive.ql.plan.TableDesc.getDeserializerClass(TableDesc.java:68)
>     at org.apache.hadoop.hive.ql.exec.FetchOperator.getRowInspectorFromTable(FetchOperator.java:231)
>     at org.apache.hadoop.hive.ql.exec.FetchOperator.getOutputObjectInspector(FetchOperator.java:608)
>     at org.apache.hadoop.hive.ql.exec.FetchTask.initialize(FetchTask.java:80)
>     at org.apache.hadoop.hive.ql.Driver.compile(Driver.java:497)
>     at org.apache.hadoop.hive.ql.Driver.compile(Driver.java:352)
>     at org.apache.hadoop.hive.ql.Driver.compileInternal(Driver.java:995)
>     at org.apache.hadoop.hive.ql.Driver.runInternal(Driver.java:1038)
>     at org.apache.hadoop.hive.ql.Driver.run(Driver.java:931)
>     at org.apache.hadoop.hive.ql.Driver.run(Driver.java:921)
>     at org.apache.hadoop.hive.cli.CliDriver.processLocalCmd(CliDriver.java:268)
>     at org.apache.hadoop.hive.cli.CliDriver.processCmd(CliDriver.java:220)
>     at org.apache.hadoop.hive.cli.CliDriver.processLine(CliDriver.java:422)
>     at org.apache.hadoop.hive.cli.CliDriver.executeDriver(CliDriver.java:790)
>     at org.apache.hadoop.hive.cli.CliDriver.run(CliDriver.java:684)
>     at org.apache.hadoop.hive.cli.CliDriver.main(CliDriver.java:623)
>     at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
>     at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:57)
>     at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)
>     at java.lang.reflect.Method.invoke(Method.java:606)
>     at org.apache.hadoop.util.RunJar.main(RunJar.java:212)
> Caused by: java.lang.ClassNotFoundException: my.serde.ColonSerde
>     at java.net.URLClassLoader$1.run(URLClassLoader.java:366)
>     at java.net.URLClassLoader$1.run(URLClassLoader.java:355)
>     at java.security.AccessController.doPrivileged(Native Method)
>     at java.net.URLClassLoader.findClass(URLClassLoader.java:354)
>     at java.lang.ClassLoader.loadClass(ClassLoader.java:425)
>     at sun.misc.Launcher$AppClassLoader.loadClass(Launcher.java:308)
>     at java.lang.ClassLoader.loadClass(ClassLoader.java:358)
>     at java.lang.Class.forName0(Native Method)
>     at java.lang.Class.forName(Class.java:190)
>     at org.apache.hadoop.hive.ql.plan.TableDesc.getDeserializerClass(TableDesc.java:66)
>     ... 20 more
> {noformat}



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