is this something to be concerned about - MUTATION message dropped

[Poziombka, Wade L]

INFO [ScheduledTasks:1] 2012-06-14 07:49:54,355 MessagingService.java (line 
615) 15 MUTATION message dropped in last 5000ms

It is at INFO level so I'm inclined to think not but is seems like whenever 
messages are dropped there may be some issue?