# PMM 2.2.0 - Dashboard without data (N/A) - Two MySQL Servers (Master) **URL:** \ **Category:** PMM 2.x\ **Created:** [January 13, 2020, 12:13pm UTC](https://forums.percona.com/t/pmm-2-2-0-dashboard-without-data-n-a-two-mysql-servers-master/7380 "2020-01-13T12:13:24Z")\ **Posts on this page:** 2\ **Page:** 1
**Author:** ![anacrl](https://avatars.discourse-cdn.com/v4/letter/a/4491bb/32.png) [@anacrl](https://forums.percona.com/u/anacrl)\ **Post date:** [January 13, 2020, 12:13pm UTC](https://forums.percona.com/t/pmm-2-2-0-dashboard-without-data-n-a-two-mysql-servers-master/7380/1 "2020-01-13T12:13:24Z")
We have eight nodes under monitoring, but two of them are without data. A node has two different IPs to mysql instances in the same port (3306). So, when I added the client, I put --host, --port and --servicename. For example: pmm-admin add mysql --query-source=slowlog --username=XXXX --password=‘XXXX’ --port=3306 --host=XX.XX.XX.XX --service-name=abc1. But there are no information. Its a mysql 5.7 server (master → slave) with slowlog enable. Thanks. ![photoid=55201](https://us1.discourse-cdn.com/flex019/uploads/percona1/original/2X/7/744e56042323e557ac9ade409bb725466f28e9bb.jpeg) ---
**Author:** ![nurlan](https://sea1.discourse-cdn.com/flex019/user_avatar/forums.percona.com/nurlan/32/1523_2.png) [@nurlan](https://forums.percona.com/u/nurlan)\ **Post date:** [January 7, 2021, 1:10pm UTC](https://forums.percona.com/t/pmm-2-2-0-dashboard-without-data-n-a-two-mysql-servers-master/7380/2 "2021-01-07T13:10:28Z")
Hi @anacrl, Could you check PMM Inventory page / Agents Tab? Do they have status running? If they do could you check if exporters are accessible from PMM Server? For it request exporters /metrics page via curl. Listening port of exporters can be learned in the same page. If they are not, please check your firewall settings for ports 42000-51999. Thank you.