Oozie workflow: Hive table not found but it does exist

Question

I got a oozie workflow, running on a CDH4 cluster of 4 machines (one master-for-everything, three "dumb" workers). The hive metastore runs on the master using mysql (driver is present), the oozie server also runs on the master using mysql, too. Using the web interface I can import and query hive as expected, but when I do the same queries within an oozie workflow it fails. Even the addition of the "IF EXISTS" leads to the error below. I tried to add the connection information as properties to the hive job without any success.

Can anybody give me a hint? Did I miss anything? Any further information needed?

This is the output of the job's log:

  Script [drop.sql] content:
  ------------------------
  DROP TABLE IF EXISTS performance_log;

  ------------------------

  Hive command arguments :
  -f
  drop.sql

  =================================================================

  >>> Invoking Hive command line now >>>

  Intercepting System.exit(10001)

  <<< Invocation of Main class completed <<<

  Failing Oozie Launcher, Main class [org.apache.oozie.action.hadoop.HiveMain], exit code [10001]

  Oozie Launcher failed, finishing Hadoop job gracefully

And this is the error message:

  FAILED: SemanticException [Error 10001]: Table not found performance_log
  Intercepting System.exit(10001)
  Failing Oozie Launcher, Main class [org.apache.oozie.action.hadoop.HiveMain], exit code [10001]

Solution

The problem is other nodes don't know where your MYSQL is , so you are getting error table not found.

You need to do 2 things

1. Copy hive-site.xml in the oozie workflow directory
2. In your Hive action tell oozie that use my hive-site.xml

Something like below

action name="hive-node"> <hive xmlns="uri:oozie:hive-action:0.2"> <job-tracker>${jobTracker}</job-tracker> <name-node>${nameNode}</name-node> <job-xml>hive-site.xml</job-xml>

This should work.

Thanks