On 03/09/2013 09:16 AM, Adam W. Dace wrote:
> This is Mac OS X v10.8.2.
>
> Yeah, I'm having all sorts of problems with shared memory.
and with inter-process communication (IPC) via Unix Domain Sockets (UDS):
> With "memory_cache_shared off", I get a different error where the
> child processes are unable to register with the coordinator process.
> Maybe there's some bizarre Mac-specific command I have to issue to
> enable shared memory support?
It is likely that you have that support enabled but Squid needs to do
something special and/or you need to tune settings such as UDS message
sizes and permissions for everything to work smoothly. Every platform
has its own shared memory and IPC oddities, unfortunately. Some known
ones are documented at
http://wiki.squid-cache.org/Features/SmpScale#Troubleshooting
> Any help would be appreciated.
You need to figure out what system call is failing first and go from
there. I recommend disabling shared memory and making sure IPC is
working first -- you will need IPC anyway.
Some of the things you can try are:
* Running Squid with debug_options ALL,9 and figuring out why kid
registration does not work. Often, the OS limit for UDS messages is too
low. There should be some error messages in ALL,9 cache.log about that,
but they are difficult to find and interpret.
* Running strace/ktrace (or Mac equivalent) and analyzing error codes of
the failing system call (by matching ALL,9 cache.log with the trace).
None of the above is easy or straightforward, unfortunately. And fewer
folks are going to volunteer their help since you are running on a
non-free OS (I am not saying this in a negative way -- just stating the
facts). You may want to file a bug report to post your logs, ask for
help, and keep a better record of your progress.
Good luck,
Alex.
Received on Sat Mar 09 2013 - 18:07:43 MST
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