Hello,
I just want to share a issue we have seen the other day.
I recently configured logrotate to rotate the hobbit logs
in /var/log/hobbit
(I know, it's XYmon, but we still run 4.2)
These were the lines I used:
/var/log/hobbit/* {
compress
dateext
maxage 60
rotate 1
missingok
notifempty
daily
olddir /var/log/oldlog/hobbit
create 640 root root
sharedscripts
postrotate
/etc/init.d/hobbit restart
endscript
}
After the logrotate happened - midnight - I received hundreds of hobbit
alerts - Ups - was the whole network down?
I logged in and could reach the hobbit server - network works...
But all (and only those) connection tests failed. Everything was red. A
ping however show results and the traceroute reached the systems as well.
The reason was simple.
The Logrotate has re-created the hobbit log files - with 640 root root -
as in the config.
Hobbit however was not able to write into these files, as it runs as
hobbit:users...
My fault... Changing permission and of course the failure in logrotate,
restart hobbit and everything becomes green again.
I would have assumed, that hobbit simply decide not to start as it could
not write to the logs...
Or that the conn tests went clean due to this...
This causes some calls this morning for the other guys on the alerting
lists... ;-)
mit freundlichen Grüßen - Best regards
med vänlig hälsning - Met vriendelijke groeten
Sincères salutations
Oliver Grube
Campbells Germany GmbH
Registergericht Luebeck Reg. Nr. HRB 4082
Geschaeftsfuehrer: Joseph B. Folds III
Geschaeftssitz:
Geniner Strasse 88 - 100
23560 Luebeck
Deutschland
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