[HDFS-12805] Ozone: Redundant characters printed in exception log

• Type: Sub-task
• Status: Resolved
• Priority: Minor
• Resolution: Fixed
• Affects Version/s: HDFS-7240
• Fix Version/s: HDFS-7240
• Component/s: ozone
• Labels: newbie
• Target Version/s: HDFS-7240
• Hadoop Flags: Reviewed
• Assignee: Yiqun Lin
• Reporter: Yiqun Lin
• Created: 13/Nov/17 02:56
• Updated: 26/Apr/18 21:55
• Resolved: 15/Nov/17 19:42

Description

Found some incorrect usage of sl4j in class Volume/Bucket/KeyProcessTemplate.class.
For Example line100 in VolumeProcessTemplate#handleCall(,
We use LOG.error("illegal argument. {}", ex); to print error info. It will invoke Logger.error(String msg, Throwable t) not Logger.debug(String format, Object arg1).
Redundant characters '{}' will be printed in exception log.

The correct usage of this should be LOG.error("illegal argument. {}", ex.toString());