[jira] [Commented] (HIVE-2935) Implement HiveServer2

["Nicolas Fouché (JIRA)" <ji...@apache.org>]

    [ https://issues.apache.org/jira/browse/HIVE-2935?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13545973#comment-13545973 ] 

Nicolas Fouché commented on HIVE-2935:
--------------------------------------

Using CDH 4.1.2, which includes this patch. I think there's a problem with hive-jdbc which includes a JDBC driver for the two version of hiveserver.

For the first version of hiveserver, hive-jdbc-0.9.0-cdh4.1.2 depends on libthrift-1.5.0, which defines org.apache.thrift.TServiceClient as an Interface.

For hiveserver2, hive-jdbc-0.9.0-cdh4.1.2 depends on hive-service-0.9.0-cdh4.1.2, which depends on hive-service-0.9.0-cdh4.1.2. The later seems to include code from libthrift, and defines org.apache.thrift.TServiceClient as an abstract class.

Thus this happens:

java.lang.IncompatibleClassChangeError: class org.apache.hive.service.cli.thrift.TCLIService$Client has interface org.apache.thrift.TServiceClient as super class
	at java.lang.ClassLoader.defineClass1(Native Method)
	at java.lang.ClassLoader.defineClassCond(Unknown Source)
	at java.lang.ClassLoader.defineClass(Unknown Source)
	at java.security.SecureClassLoader.defineClass(Unknown Source)
	at java.net.URLClassLoader.defineClass(Unknown Source)
	at java.net.URLClassLoader.access$000(Unknown Source)
	at java.net.URLClassLoader$1.run(Unknown Source)
	at java.security.AccessController.doPrivileged(Native Method)
	at java.net.URLClassLoader.findClass(Unknown Source)
	at java.lang.ClassLoader.loadClass(Unknown Source)
	at sun.misc.Launcher$AppClassLoader.loadClass(Unknown Source)
	at java.lang.ClassLoader.loadClass(Unknown Source)
	at org.apache.hive.jdbc.HiveConnection.openTransport(HiveConnection.java:157)
	at org.apache.hive.jdbc.HiveConnection.<init>(HiveConnection.java:96)

Of course, I just have to remove libthrift from my libpath. But I just wanted to make Carl Steinbach know. (I used maven-dependency-plugin to get all dependent JARs, without thinking about what would be useless, or incompatible)
                
> Implement HiveServer2
> ---------------------
>
>                 Key: HIVE-2935
>                 URL: https://issues.apache.org/jira/browse/HIVE-2935
>             Project: Hive
>          Issue Type: New Feature
>          Components: Server Infrastructure
>            Reporter: Carl Steinbach
>            Assignee: Carl Steinbach
>              Labels: HiveServer2
>         Attachments: beelinepositive.tar.gz, HIVE-2935.1.notest.patch.txt, HIVE-2935.2.notest.patch.txt, HIVE-2935.2.nothrift.patch.txt, HS2-changed-files-only.patch, HS2-with-thrift-patch-rebased.patch
>
>


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