Re: [squid-users] Squid 3.2: squid -z forking?

On 02/06/2013 10:42 PM, Alex Rousskov wrote:
> Yes, it is. In old Squids, -z implied no-daemon mode. Then folks wanted
> to use SMP macros in their configurations, including their cache_dir
> lines. Those macros require SMP mode (each Squid kid gets its own set of
> macro values) so we removed that implication. IIRC, there was a bug
> report and/or a squid-dev thread discussing this choice and the
> alternatives. In other words, this change and its backward
> incompatibility were not accidental.
>
> Technically, it would be possible to revert -z to no-daemon mode if and
> only if there are no SMP macros (or similar SMP dependencies) in the
> configuration file, but there is currently no patch implementing that
> feature.
>
>
> FWIW, neither rock nor ufs-based cache_dirs themselves require daemon
> mode for initialization. However, if your cache_dirs use SMP macros for
> directory names (and most ufs-based cache_dirs do), then daemon mode is
> required.
>
>
>> There's a race for cases like: squid -z; squid
>
> If you want squid to block (i.e., prevent the parent process from
> exiting immediately), and your configuration allows cache_dir
> initialization without SMP, then start Squid in no-daemon mode using the
> -N command line option:
>
> squid -z -N
>
> If that does not work, please file a bug report.
>
>
> If your configuration does not allow blocking cache_dir initialization,
> then you need to adjust your startup script to wait for the Squid daemon
> to exit.

Hi Alex!

Thank you for the clarification. We don't need these new SMP macros so I
can use the -N option. Works like intended now.

Greetings,

Matthias
Received on Thu Feb 07 2013 - 08:55:51 MST