[collectd] Bug#535787: collectd: powerdns monitoring hangs on the pdns socket (pdns 2.9.22)

Sebastian Harl sh at tokkee.org
Mon Jul 27 18:20:16 CEST 2009


On Sat, Jul 04, 2009 at 08:29:49PM -0600, thomas morgan wrote:
> Package: collectd
> Version: 4.6.3-1~bpo50+1
> There is some kind of incompatibility between collectd and powerdns
> 2.9.22. With powerdns support enabled in collectd, collectd connects
> to powerdns's unix socket. The connection hangs indefinitely.
> collectd will no longer even shutdown and must be kill -9'd. It render
> powerdns's control socket useless as well, so it can no longer be
> managed either (until collectd is killed). 
> Things work as expected with powerdns I tried collectd 4.6.2
> also, with the same problem.

Are there any error messages in the log? Does powerdns log any useful
messages? Does collectd log the message "Initialization complete,
entering read-loop" (in case you're using log-level "info" or higher)?
What does your configuration look like? Could you please try to find out
what collectd is doing, e.g. using strace or a debugger (install
collectd-dbg in that case)?

I do not use the "powerdns" plugin myself and I do not currently have
the time for in-depth debugging of this issue. With this E-mail, I've
forwarded the issue to the upstream mailinglist and Cc'ed the original
author of the plugin. Please keep <collectd at verplant.org> and
<535787 at bugs.debian.org> Cc'ed when replying to this E-mail.


Sebastian "tokkee" Harl +++ GnuPG-ID: 0x8501C7FC +++ http://tokkee.org/

Those who would give up Essential Liberty to purchase a little Temporary
Safety, deserve neither Liberty nor Safety.         -- Benjamin Franklin

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