[metrics-alerts] monit alert -- Connection failed op-nl3-tgen

[Monit]

Connection failed Service op-nl3-tgen

    Date:        Tue, 04 Aug 2020 04:25:56
    Action:      alert
    Host:        op-hk3
    Description: failed protocol test [DEFAULT] at [op-nl3.onionperf.torproject.net]:8080 [TCP/IP] -- Connection timed out