I0608 15:35:09.768336       1 stats.go:136] "Error getting keys" err="empty key: \"\""
I0608 15:35:32.669517       1 stats.go:136] "Error getting keys" err="empty key: \"\""
I0608 15:36:26.484249       1 stats.go:136] "Error getting keys" err="empty key: \"\""
I0608 15:36:52.236289       1 stats.go:136] "Error getting keys" err="empty key: \"\""