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QAN API error: "agent not connected" Check whether percona-qan-agent is started.

soniahsoniah EntrantInactive User Role Beginner
I have the PMM server running, and the docker containers are up. But I'm getting the following error message in the web interface, and the init script referred to doesn't exist. I get it when I click on the settings wheel under a database; also there's no data for the database.

https://4.5.6.7/qan/#/management/mysql/deadbeefdeadbeef

QAN API error: "agent not connected".
Check whether percona-qan-agent is started.
sudo /etc/init.d/percona-qan-agent start|stop|restart|status

$ ls -1 /etc/init.d | grep perc # nothing

$ cat /etc/redhat-release
CentOS Linux release 7.2.1511 (Core)

$ s netstat -tanp
Active Internet connections (servers and established)
Proto Recv-Q Send-Q Local Address Foreign Address State PID/Program name
tcp 0 0 5.6.7.8:53 5.6.7.8:* LISTEN 1095/named
tcp 0 0 5.6.7.8:3030 5.6.7.8:* LISTEN 2204/ruby
tcp 0 0 5.6.7.8:22 5.6.7.8:* LISTEN 1001/sshd
tcp 0 0 5.6.7.8:25 5.6.7.8:* LISTEN 1629/master
tcp 0 0 5.6.7.8:953 5.6.7.8:* LISTEN 1095/named
tcp 0 0 5.6.7.8:56696 5.6.7.8:5672 ESTABLISHED 2204/ruby
tcp 0 0 5.6.7.8:22 5.6.7.8:56391 ESTABLISHED 11230/sshd: sonia [
tcp 0 36 5.6.7.8:22 5.6.7.8:12441 ESTABLISHED 27318/sshd: sonia [
tcp 0 0 5.6.7.8:43176 5.6.7.8:4505 ESTABLISHED 12783/python
tcp6 0 0 :::8080 :::* LISTEN 2966/docker-proxy
tcp6 0 0 :::80 :::* LISTEN 2863/docker-proxy
tcp6 0 0 ::1:53 :::* LISTEN 1095/named
tcp6 0 0 :::22 :::* LISTEN 1001/sshd
tcp6 0 0 ::1:25 :::* LISTEN 1629/master
tcp6 0 0 ::1:953 :::* LISTEN 1095/named
tcp6 0 0 :::443 :::* LISTEN 2849/docker-proxy

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