I0417 01:09:46.186402       1 stats.go:136] "Error getting keys" err="empty key: \"\""
I0417 01:09:50.356263       1 stats.go:136] "Error getting keys" err="empty key: \"\""
I0417 01:10:48.860706       1 stats.go:136] "Error getting keys" err="empty key: \"\""
I0417 01:10:53.612358       1 stats.go:136] "Error getting keys" err="empty key: \"\""