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Re: Question about shared memory in Squid 3.5

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On 03/07/2016 04:49 AM, Silamael wrote:

> We're updating to Squid 3.5 under OpenBSD and have some issues with the
> apparently new shared memory behavior:

> 1. Squid always creates three shared memory files and does not remove
> these on shutdown

> 2. As we're running multiple complete different configuration on the
> same machine on different ports, the shared memory files collide and
> Squid does not start up properly

If Squid creates shared memory segments without you using SMP features,
it is a Squid bug. I recall fixing one such bug in Squid v4/trunk
recently. Perhaps it exists in v3.5 as well. I recommend filing a bug
report while specifying exactly which files are being created.

If Squid does not remove shared memory segments on shutdown, it is a
Squid bug. I recall fixing one such bug in Squid v4/trunk recently.
Perhaps it exists in v3.5 as well. I recommend filing a bug report while
specifying exactly which files are left behind.


FWIW, Squid v4 supports the "-n" command line option to assist with
running multiple instances on the same box (with or without using SMP
features). I do not remember whether v3.5 supports that as well but it
may. I do not remember whether "-n" support extends to shared memory
segment names but it should.

Alex.

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