[squid-users] SMP mode and StoreID rewriter

[Ivan Larionov]

Hello.

We're currently testing squid in SMP mode. One of our services uses Store
ID feature. The interesting thing we see is that store_id_program started
for every squid process (except main). Process tree looks like this:

> squid
>  \_ (squid-coord-4)
>  |   \_ (rewriter_3)
>  |   \_ (rewriter_3)
>  \_ (squid-disk-3)
>  |   \_ (rewriter_3)
>  |   \_ (rewriter_3)
>  \_ (squid-2)
>  |   \_ (rewriter_3)
>  |   \_ (rewriter_3)
>  \_ (squid-1)
>      \_ (rewriter_3)
>      \_ (rewriter_3)

>From my brief testing it seems like rewrite is working as expected, but I
just wanted to make sure it's ok to see store_id_program started for every
child or may be it's sort of a bug.

May be it should be started only for "worker" or only for "disk"?

Relevant parts of the config:

> workers 2
> store_id_program /mnt/services/squid-url-rewriter/rewriter_3
> store_id_children 5 startup=2 idle=2 concurrency=10

>From the log file:

2018/01/10 16:56:12 kid4| helperOpenServers: Starting 2/5 'rewriter_3'
processes
2018/01/10 16:56:12 kid2| helperOpenServers: Starting 2/5 'rewriter_3'
processes
2018/01/10 16:56:12 kid3| helperOpenServers: Starting 2/5 'rewriter_3'
processes
2018/01/10 16:56:12 kid1| helperOpenServers: Starting 2/5 'rewriter_3'
processes

Squid Cache: Version 3.5.27
Service Name: squid
configure options:  '--program-prefix=' '--prefix=/usr'
'--exec-prefix=/usr' '--bindir=/usr/sbin' '--sbindir=/usr/sbin'
'--sysconfdir=/etc/squid' '--libdir=/usr/lib' '--libexecdir=/usr/lib/squid'
'--includedir=/usr/include' '--datadir=/usr/share'
'--sharedstatedir=/usr/com' '--localstatedir=/var'
'--mandir=/usr/share/man' '--infodir=/usr/share/info' '--enable-epoll'
'--enable-removal-policies=heap,lru' '--enable-storeio=aufs,rock'
'--enable-delay-pools' '--with-pthreads' '--enable-cache-digests'
'--with-large-files' '--with-maxfd=16384' '--enable-htcp'

-- 
With best regards, Ivan Larionov.
-------------- next part --------------
An HTML attachment was scrubbed...
URL: <http://lists.squid-cache.org/pipermail/squid-users/attachments/20180110/fc415a4c/attachment.html>