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Xymon no longer sending alerts

list Kris Springer
Tue, 30 Jan 2024 17:05:38 -0700
Message-Id: <user-fc2b199c353d@xymon.invalid>

Looks like your hosts.cfg file has an error in it. This happens to me sometimes if I'm not careful.? Especially if I'm using SSH and scrolling with my mouse wheel, for some reason it adds weird characters into the file.

Kris Springer


On 1/30/24 4:49 PM, Colin Coe wrote:
Hi all

Our Xymon server has recently stopped sending alert emails. This server is also running Postfix and is our mail relay.

From alert.log all I see is:
2024-01-31 02:17:39.813610 Whoops ! Failed to send message (Select(2) failed)
2024-01-31 02:17:39.829027 -> ?Select failure while sending to Xymon daemon at 10.10.10.10:1984 <http://daemon at 10.10.10.10:1984>
2024-01-31 02:17:39.829032 -> ?Recipient '10.10.10.10', timeout 50
2024-01-31 02:17:39.829037 -> ?1st line: 'config hosts.cfg'
2024-01-31 02:17:39.829042 Cannot load hosts.cfg from xymond: Select(2) failed
2024-01-31 02:17:39.829049 Failed to load from xymond, reverting to file-load
2024-01-31 02:22:40.932828 Whoops ! Failed to send message (Select(2) failed)
2024-01-31 02:22:40.932863 -> ?Select failure while sending to Xymon daemon at 10.10.10.10:1984 <http://daemon at 10.10.10.10:1984>
2024-01-31 02:22:40.932867 -> ?Recipient '10.10.10.10', timeout 50
2024-01-31 02:22:40.932871 -> ?1st line: 'config hosts.cfg'
2024-01-31 02:22:40.932876 Cannot load hosts.cfg from xymond: Select(2) failed
2024-01-31 02:22:40.932881 Failed to load from xymond, reverting to file-load

And notifications.log is zero bytes in size.

I added "--debug" to the "[alert]" section of?/etc/xymon/tasks.cfg and while the verbosity was increased, there was no indication of why alerts are not being sent.

Any clues how I can debug this?

Thanks