[HDFS-10876] Dispatcher#dispatch should log IOException stacktrace

• Type: Improvement
• Status: Resolved
• Priority: Trivial
• Resolution: Fixed
• Affects Version/s: 2.6.0
• Fix Version/s: 2.8.0, 3.0.0-alpha2
• Component/s: balancer & mover
• Labels: newbie
• Target Version/s: 3.0.0-alpha2
• Hadoop Flags: Reviewed
• Assignee: Manoj Govindassamy
• Reporter: Wei-Chiu Chuang
• Created: 20/Sep/16 15:46
• Updated: 02/Oct/19 17:14
• Resolved: 23/Sep/16 20:33

Description

This error logging should be improved. A warning log should record the stacktrace as well.

Dispatcher#dispatch

try {
...
} catch (IOException e) {
        LOG.warn("Failed to move " + this + ": " + e.getMessage());
...
}