can not use count() to determine whether there is a machine actived

[ckeyer]

What did you do?
time() - container_last_seen=""} <=10 no data
count(time() - container_last_seen <=10) return no data

What did you expect to see?

count(time() - container_last_seen <=10) return no data

What did you see instead? Under which circumstances?

count(time() - container_last_seen <=10) return 0

Environment

latest

• System information:

  insert output of uname -srm here

• Prometheus version:

  insert output of prometheus -version here

• Alertmanager version:

  insert output of alertmanager -version here (if relevant to the issue)

• Prometheus configuration file:

insert configuration here

• Alertmanager configuration file:

insert configuration here (if relevant to the issue)

• Logs:

insert Prometheus and Alertmanager logs relevant to the issue here

[brian-brazil]

Usage questions are best asked at https://groups.google.com/forum/#!forum/prometheus-users

[lock]

This thread has been automatically locked since there has not been any recent activity after it was closed. Please open a new issue for related bugs.