<div class="gmail_quote"><blockquote class="gmail_quote" style="border-left: 1px solid rgb(204, 204, 204); margin: 0pt 0pt 0pt 0.8ex; padding-left: 1ex;"><div link="blue" vlink="purple" lang="EN-US"><div><p><i>Jun 22 09:09:41 dns1 pdns[10957]:
/usr/sbin/pdns_server-instance(_ZN12UeberBackend11addNegCacheERKNS_8QuestionE+0x8e)
[0x80c32de]</i></p>
<p><i>Jun 22 09:09:41 dns1 pdns[10957]:
/usr/sbin/pdns_server-instance(_ZN12UeberBackend3getER17DNSResourceRecord+0x12f)
[0x80c351f]</i></p>
<p> </p>
<p>After this entry PDNS is down and stays down.</p>
<p></p></div></div></blockquote><div>We have not experienced problems like this (and I managed dns servers with 100k+ of domains so a lot of queries there).<br><br>But I am curious does the guardian not restart it automagicly? Or does the guardian even run at all?<br>
<br></div></div>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.<br><br>Apart from this we monitor all systems with nagios. Through an event handler it can also restart services.<br>
<br><br>Cheers,<br>Pascal<br><br>