Jun 22 09:09:41 dns1 pdns[10957]:
/usr/sbin/pdns_server-instance(_ZN12UeberBackend11addNegCacheERKNS_8QuestionE+0x8e)
[0x80c32de]
Jun 22 09:09:41 dns1 pdns[10957]:
/usr/sbin/pdns_server-instance(_ZN12UeberBackend3getER17DNSResourceRecord+0x12f)
[0x80c351f]
After this entry PDNS is down and stays down.
We have not experienced problems like this (and I managed dns servers with 100k+ of domains so a lot of queries there).
But I am curious does the guardian not restart it automagicly? Or does the guardian even run at all?
As for me the guardian keeps on respawning until forever or until the problem is fixed. Not that that happens a lot and is usually because the database is (intentionally) down.
Apart from this we monitor all systems with nagios. Through an event handler it can also restart services.
Cheers,
Pascal
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