[HADOOP-7577] TT does not start due to backwards compatibility wrt. EventCounter

• Type: Bug
• Status: Resolved
• Priority: Minor
• Resolution: Fixed
• Affects Version/s: 0.22.0
• Fix Version/s: 0.22.0
• Component/s: metrics
• Hadoop Flags: Reviewed
• Assignee: Joep Rottinghuis
• Reporter: Joep Rottinghuis
• Created: 24/Aug/11 22:31
• Updated: 24/Nov/11 00:50
• Resolved: 01/Sep/11 01:53

Description

Between metrics1 and mertrics2 EventCounter was moved from o.a.h.log to o.a.h.metrics.jvm.
On 0.20-security a wrapper marked with @Deprecated was added back to o.a.h.log for compatibility, the same wrapper exists on trunk, but no on 0.22.

Without it the TT will fail to start with a ClassNotFoundException.
Hive configuration also point to this class in the log4j.properties.