Re: [pcp] Help with troubleshooting issue with postfix pmda

[Nathan Scott <nathans@xxxxxxxxxx>]

Hi Chandana,

----- Original Message -----
> All,
> I am seeing fairly regular issue with a bunch of hosts running postfix, using
> postfix pmda for monitoring,
> [...]
> 
> [Fri Aug 12 03:04:35] pmcd(28918) Warning: pduread: timeout (after 5.000 sec)
> while attempting to read 12 bytes out of 12 in HDR on fd=21

I would punt that the qshape command is blocking for at least one of the queues,
for a long time.  Best way to resolve this is probably in postfix_do_refresh() -
if this was run on an interval timer (see pmdamemcache.pl for example), instead
of serially during postfix_fetch_callback(), the problem should be resolved.

cheers.

--
Nathan