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From Adam Silberstein <a...@trifacta.com>
Subject Re: org.apache.hadoop.hive.metastore.HiveMetaStoreClient with webhcat REST
Date Mon, 17 Mar 2014 22:12:57 GMT
Hi,
Didn't get any answers on this, trying one more time.

Thanks,
Adam

On Mar 14, 2014, at 9:50 AM, Adam Silberstein <adam@trifacta.com> wrote:

> Hi,
> I'm testing out the REST interface to webhcat and stuck doing basic DDL operations.
> 
> Background on installation:
> --I installed packages with apt-get
> --I'm on CDH4.5
> 
> I successfully have created and loaded tables with chat command line.  E.g.: hcat -e
'create table testtable (a string, b string, c int);'
> I did some loading by hand and via Pig.  So I think the HCatalog service is running correctly.
> 
> Here's what I am seeing via curl:
> $ curl http://localhost:50111/templeton/v1/ddl/database/testtable?user.name=<myname>
> 
> {"errorDetail":"\norg.apache.hadoop.hive.ql.metadata.HiveException: org.apache.hadoop.hive.ql.metadata.HiveException:
java.lang.RuntimeException: Unable to instantiate org.apache.hadoop.hive.metastore.HiveMetaStoreClient\n\tat
org.apache.hadoop.hive.ql.exec.DDLTask.descDatabase(DDLTask.java:2647)\n\tat org.apache.hadoop.hive.ql.exec.DDLTask.execute(DDLTask.java:244)\n\tat
org.apache.hadoop.hive.ql.exec.Task.executeTask(Task.java:138)\n\tat org.apache.hadoop.hive.ql.exec.TaskRunner.runSequential(TaskRunner.java:66)\n\tat
org.apache.hadoop.hive.ql.Driver.launchTask(Driver.java:1383)\n\tat org.apache.hadoop.hive.ql.Driver.execute(Driver.java:1169)\n\tat
org.apache.hadoop.hive.ql.Driver.run(Driver.java:982)\n\tat org.apache.hadoop.hive.ql.Driver.run(Driver.java:902)\n\tat
org.apache.hcatalog.cli.HCatDriver.run(HCatDriver.java:43)\n\tat org.apache.hcatalog.cli.HCatCli.processCmd(HCatCli.java:251)\n\tat
org.apache.hcatalog.cli.HCatCli.processLine(HCatCli.java:205)\n\tat org.apache.hcatalog.cli.HCatCli.main(HCatCli.java:164)\n\tat
sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)\n\tat sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:57)\n\tat
sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)\n\tat
java.lang.reflect.Method.invoke(Method.java:622)\n\tat org.apache.hadoop.util.RunJar.main(RunJar.java:208)\n","error":"FAILED:
Error in metadata: org.apache.hadoop.hive.ql.metadata.HiveException: java.lang.RuntimeException:
Unable to instantiate org.apache.hadoop.hive.metastore.HiveMetaStoreClient","errorCode":500}
> 
> I found a bunch of help online so I tried adding some things in webhcat-site.xml
> -templeton.libjars: I added paths to a bunch of libraries, including '/usr/lib/hive/lib/hive-metastore-0.10.0-cdh4.5.0.jar'
which has the missing HiveMetaStoreClient class.  Then restarted webhcat, can't tell if it
picked up this property.
> -Less promising, I uploaded the hive tar.gz file to HDFS and updated their paths in templeton.hive.archive
and templeton.hive.path.  Skeptical the server would be looking in HDFS for libraries, and
this didn't help either.
> -There is older material from ~2011 as well, but ignoring that.
> 
> If you have any suggestions please share.  Thanks in advance!
> 
> -Adam
> 
> 
> 
> 
> 


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