I0609 18:10:41.526474       1 stats.go:136] "Error getting keys" err="empty key: \"\""
I0609 18:10:52.914419       1 stats.go:136] "Error getting keys" err="empty key: \"\""
I0609 18:11:53.363620       1 stats.go:136] "Error getting keys" err="empty key: \"\""
I0609 18:11:57.250981       1 stats.go:136] "Error getting keys" err="empty key: \"\""