+-----------+---------------------+----------+--------------+----------+----------+--------+---------+----------+------------------+------------------+------------+
| hostgroup | srv_host            | srv_port | status       | ConnUsed | ConnFree | ConnOK | ConnERR | Queries  | Bytes_data_sent | Bytes_data_recv | Latency_us |
+-----------+---------------------+----------+--------------+----------+----------+--------+---------+----------+------------------+------------------+------------+
| 10        | back001-db-master   | 6001     | ONLINE       | 69       | 423      | 524    | 0       | 8970367  | 9858463664      | 145193069937    | 17684      |
| 11        | back001-db-master   | 6002     | ONLINE       | 0        | 1        | 1      | 0       | 69       | 187675          | 2903             | 17684      |
| 11        | back001-db-reader   | 6003     | ONLINE       | 0        | 11       | 11     | 0       | 63488    | 163690013       | 4994101          | 113        |
| 20        | back002-db-master   | 6004     | ONLINE       | 9        | 188      | 197    | 2       | 849461   | 1086994186      | 266034339        | 101981     |
| 21        | back002-db-reader   | 6005     | OFFLINE_HARD | 0        | 1        | 1      | 0       | 8        | 6992            | 984              | 230        |
| 31        | back003-db-master   | 6006     | OFFLINE_SOFT | 0        | 3        | 3      | 0       | 3276     | 712803          | 81438709         | 231        |
| 31        | back003-db-reader   | 6007     | SHUNNED      | 1        | 70       | 71     | 0       | 2356904  | 411900849       | 115810708275    | 230        |
+-----------+---------------------+----------+--------------+----------+----------+--------+---------+----------+------------------+------------------+------------+