[jira] [Created] (HBASE-8126) log4j hbase.root.logger is always overwritten by ENV, even if not defined

["philo vivero (JIRA)" <ji...@apache.org>]

philo vivero created HBASE-8126:
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             Summary: log4j hbase.root.logger is always overwritten by ENV, even if not defined
                 Key: HBASE-8126
                 URL: https://issues.apache.org/jira/browse/HBASE-8126
             Project: HBase
          Issue Type: Bug
          Components: regionserver
    Affects Versions: 0.92.1
         Environment: Ubuntu Linux 10.04 LTS
            Reporter: philo vivero


Go to log4j.properties. Note this sequence of definitions:

hbase.root.logger=INFO,console
log4j.rootLogger=${hbase.root.logger}

One would think they could change hbase.root.logger to something else. Say "INFO,console,SYSLOG" and then define syslogging, but they'd be wrong. The syslog won't take effect. The second line will always go back to "INFO,console" (or something, we're not able to determine what it's reverting to exactly).

What's happening is that the HBASE_ROOT_LOGGER environment variable from hbase-env.sh ALWAYS overwrites that variable before it's used.

However, in our environment, HBASE_ROOT_LOGGER wasn't being defined. It was commented out. Still, something sets that environment variable to a default and uses it, always clobbering the log4j.properties hbase.root.logger.

Suggestion: either don't define hbase.root.logger in log4j.properties at all (instead place a comment stating that HBASE_ROOT_LOGGER environment variable in hbase-env.sh is the proper place to change it), or have modifications in log4j take precedence (and comment such in hbase-env.sh).

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