How to use systemd notify
I'm learning how to use systemd notify. I'm thinking it is a kind of mechanism, which allows a process to send a notification to another process.
So, I tried to make a notification with the command systemd-notify --ready --status="hello". Then I got an error: No status data could be sent: $NOTIFY_SOCKET was not set. It seems that it needs a listener, just like the socket. But I don't know how to make a listener to receive this notification.
Also, I've known that the service of systemd has some different types, one of them is notify. The doc said, Type=notify: identical to Type=simple, but with the stipulation that the daemon will send a signal to systemd when it is ready.. So it seems that the service whose type is notify can send notification too, but I don't know how to use it either.
systemd notification
asked 25 mins ago
YvesYves
402418
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I'm learning how to use systemd notify. I'm thinking it is a kind of mechanism, which allows a process to send a notification to another process.
So, I tried to make a notification with the command systemd-notify --ready --status="hello". Then I got an error: No status data could be sent: $NOTIFY_SOCKET was not set. It seems that it needs a listener, just like the socket. But I don't know how to make a listener to receive this notification.
Also, I've known that the service of systemd has some different types, one of them is notify. The doc said, Type=notify: identical to Type=simple, but with the stipulation that the daemon will send a signal to systemd when it is ready.. So it seems that the service whose type is notify can send notification too, but I don't know how to use it either.
systemd notification
asked 25 mins ago
YvesYves
402418
add a comment |
I'm learning how to use systemd notify. I'm thinking it is a kind of mechanism, which allows a process to send a notification to another process.
So, I tried to make a notification with the command systemd-notify --ready --status="hello". Then I got an error: No status data could be sent: $NOTIFY_SOCKET was not set. It seems that it needs a listener, just like the socket. But I don't know how to make a listener to receive this notification.
Also, I've known that the service of systemd has some different types, one of them is notify. The doc said, Type=notify: identical to Type=simple, but with the stipulation that the daemon will send a signal to systemd when it is ready.. So it seems that the service whose type is notify can send notification too, but I don't know how to use it either.
systemd notification
asked 25 mins ago
YvesYves
402418
I'm learning how to use systemd notify. I'm thinking it is a kind of mechanism, which allows a process to send a notification to another process.
So, I tried to make a notification with the command systemd-notify --ready --status="hello". Then I got an error: No status data could be sent: $NOTIFY_SOCKET was not set. It seems that it needs a listener, just like the socket. But I don't know how to make a listener to receive this notification.
Also, I've known that the service of systemd has some different types, one of them is notify. The doc said, Type=notify: identical to Type=simple, but with the stipulation that the daemon will send a signal to systemd when it is ready.. So it seems that the service whose type is notify can send notification too, but I don't know how to use it either.
systemd notification
systemd notification
asked 25 mins ago
YvesYves
402418
asked 25 mins ago
YvesYves
402418
asked 25 mins ago
YvesYves
402418
asked 25 mins ago
YvesYves
402418
asked 25 mins ago
YvesYves
402418
402418
add a comment |
add a comment |
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