Migrating to hive 8.1 on EMR

[Ranjan Bagchi]

Hi,

I've built a datastore using Hive 7.1 backed by S3 using persistent metadata.  
Now that hive 8.1 is available, I'd like to migrate to the new version.

However, I'm having trouble reading tables with the persistent schema.  Looking 
in the logs, I'm getting stack traces like the following:
2012-06-18 19:51:23,176 ERROR org.apache.hadoop.hive.ql.exec.Task (SessionState.
java:printError(380)) - Failed with exception null
java.lang.NullPointerException
        at org.apache.hadoop.hive.ql.metadata.Table.checkValidity(Table.java:162
)
        at org.apache.hadoop.hive.ql.metadata.Hive.getTable(Hive.java:946)
        at org.apache.hadoop.hive.ql.metadata.Hive.getTable(Hive.java:860)
        at org.apache.hadoop.hive.ql.exec.DDLTask.describeTable(DDLTask.java:252
7)
        at org.apache.hadoop.hive.ql.exec.DDLTask.execute(DDLTask.java:298)
        at org.apache.hadoop.hive.ql.exec.Task.executeTask(Task.java:133)
        at org.apache.hadoop.hive.ql.exec.TaskRunner.runSequential(TaskRunner.ja
va:57)
        at org.apache.hadoop.hive.ql.Driver.launchTask(Driver.java:1332)
        at org.apache.hadoop.hive.ql.Driver.execute(Driver.java:1123)
        at org.apache.hadoop.hive.ql.Driver.run(Driver.java:931)
        at 
org.apache.hadoop.hive.cli.CliDriver.processLocalCmd(CliDriver.java:261)
        at org.apache.hadoop.hive.cli.CliDriver.processCmd(CliDriver.java:218)
        at org.apache.hadoop.hive.cli.CliDriver.processLine(CliDriver.java:409)
        at org.apache.hadoop.hive.cli.CliDriver.run(CliDriver.java:684)
        at org.apache.hadoop.hive.cli.CliDriver.main(CliDriver.java:567)
        at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
        at 
sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:39)
        at 
sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:25)
        at java.lang.reflect.Method.invoke(Method.java:597)
        at org.apache.hadoop.util.RunJar.main(RunJar.java:156)

2012-06-18 19:51:23,180 ERROR org.apache.hadoop.hive.ql.Driver 
(SessionState.java:printError(380)) - FAILED: Execution Error, return code 1 
from org.apache.hadoop.hive.ql.exec.DDLTask

Does anyone have experience with this?

Thanks,

Ranjan