Re: [squid-users] squid proccess freeze

From: Alexandre Correa <alexandre@dont-contact.us>
Date: Fri, 2 Nov 2007 06:33:34 -0300

> How many users is your Squid box serving? It's strange that there is no
> errors. Where have you defined the cache_log directive in your squid.conf?

+- 300~400 users simultaneously

cache_access_log none
cache_log /var/log/squid/cache.log
cache_store_log none

cache_dir aufs /var/spool/squid 110000 72 256
cache_mem 256 MB

>
> When you say "after some time running .. squid proccess refusing
> connections", is it a few minutes or hours or even days?
an accurate time does not exist, after some hours, when the load increases ..
>
> Can you post the output of "squidclient mgr:info"?
>
> Posting your squid.conf may help too.

maresia# squidclient mgr:info
Squid Object Cache: Version 2.6.STABLE16
Start Time: Fri, 02 Nov 2007 04:43:44 GMT
Current Time: Fri, 02 Nov 2007 07:24:54 GMT
Connection information for squid:
        Number of clients accessing cache: 0
        Number of HTTP requests received: 28162
        Number of ICP messages received: 21
        Number of ICP messages sent: 21
        Number of queued ICP replies: 0
        Request failure ratio: 0.00
        Average HTTP requests per minute since start: 100.2
        Average ICP messages per minute since start: 0.1
        Select loop called: 795855 times, 21.196 ms avg
Cache information for squid:
        Request Hit Ratios: 5min: 48.1%, 60min: 43.4%
        Byte Hit Ratios: 5min: 4.5%, 60min: 6.6%
        Request Memory Hit Ratios: 5min: 2.2%, 60min: 1.2%
        Request Disk Hit Ratios: 5min: 50.0%, 60min: 26.6%
        Storage Swap size: 2980474 KB
        Storage Mem size: 50900 KB
        Mean Object Size: 17.57 KB
        Requests given to unlinkd: 0
Median Service Times (seconds) 5 min 60 min:
        HTTP Requests (All): 0.08265 0.09736
        Cache Misses: 0.39928 0.37825
        Cache Hits: 0.00286 0.00463
        Near Hits: 0.09219 0.09219
        Not-Modified Replies: 0.00286 0.00000
        DNS Lookups: 0.10428 0.17826
        ICP Queries: 0.00000 0.00000
Resource usage for squid:
        UP Time: 16869.319 seconds
        CPU Time: 85.383 seconds
        CPU Usage: 0.51%
        CPU Usage, 5 minute avg: 0.38%
        CPU Usage, 60 minute avg: 0.28%
        Process Data Segment Size via sbrk(): 154172 KB
        Maximum Resident Size: 159328 KB
        Page faults with physical i/o: 1
Memory accounted for:
        Total accounted: 75685 KB
        memPoolAlloc calls: 4466729
        memPoolFree calls: 4009299
File descriptor usage for squid:
        Maximum number of file descriptors: 4096
        Largest file desc currently in use: 26
        Number of file desc currently in use: 21
        Files queued for open: 0
        Available number of file descriptors: 4075
        Reserved number of file descriptors: 100
        Store Disk files open: 0
        IO loop method: kqueue
Internal Data Structures:
        169850 StoreEntries
          5569 StoreEntries with MemObjects
          5564 Hot Object Cache Items
        169667 on-disk objects

at this moment i have less traffic/users .. i will run later when load
increase.. (if squid not freeze before).. itīs very strange..

kernel compiled with options: (6.2-RELEASE-p8 FreeBSD)

options SYSVSHM # SYSV-style shared memory
options SYSVMSG # SYSV-style message queues
options SYSVSEM # SYSV-style semaphores

options MSGMNB=16384
options MSGMNI=41
options MSGSEG=2049
options MSGSSZ=64
options MSGTQL=512
options SHMSEG=16
options SHMMNI=32
options SHMMAX=2097152
options SHMALL=3096

thanks !!

regards,

AlexandrE

>
>
>
> >
> > # ps auwx | grep squid
> >
> > USER PID %CPU %MEM VSZ RSS TT STAT STARTED TIME COMMAND
> > squid 807 0.0 16.1 679548 671268 ?? T 10:52PM 10:50.02 (squid)
> > -D -s (squid)
> > squid 864 0.0 0.0 2472 752 ?? Is 10:52PM 0:00.00 (unlinkd)
> > (unlinkd)
> > root 36341 0.0 0.0 5852 1212 p0 R+ 10:59AM 0:00.00 grep squi=
> > d
> >
> > using AUFS !!
> >
> > squid 2.6.STABLE16
> > configure options:
> >
> > '--program-prefix=3D' '--prefix=3D/usr' '--exec-prefix=3D/usr'
> > '--bindir=3D/usr/bin' '--sbindir=3D/usr/sbin' '--sysconfdir=3D/etc'
> > '--includedir=3D/usr/include' '--libdir=3D/usr/lib' '--libexecdir=3D/usr/li=
> > bexec'
> > '--sharedstatedir=3D/usr/com' '--mandir=3D/usr/share/man'
> > '--infodir=3D/usr/share/info' '--exec_prefix=3D/usr' '--bindir=3D/usr/sbin'
> > '--libexecdir=3D/usr/lib/squid' '--localstatedir=3D/var'
> > '--sysconfdir=3D/etc/squid' '--disable-useragent-log' '--disable-referer-lo=
> > g'
> > '--enable-kqueue' '--enable-snmp' '--enable-removal-policies=3Dheap,lru'
> > '--enable-storeio=3Daufs,coss,diskd,ufs' '--enable-ssl'
> > '--enable-ipf-transparent' '--enable-linux-netfilter' '--with-pthreads'
> > '--disable-dependency-tracking' '--enable-cachemgr-hostname=3Dlocalhost'
> > '--disable-ident-lookups' '--enable-underscores' '--datadir=3D/usr/share'
> > '--with-maxfd=3D4096' '--enable-async-io' '--disable-dlmalloc' '--with-aio'
> >
> > somebody knowns wat=B4s happens ?!
>
> Is that the output of "squid -v"? By the way, what is the 3D reference
> in your compilation parameters for?
>
> Did you install Squid from FreeBSD ports or did you compile it yourself?
>
> >
> >
> > thanks..
> >
> > regards,
> >
>
>
> --
>
> With best regards and good wishes,
>
> Yours sincerely,
>
> Tek Bahadur Limbu
>
> System Administrator
>
> (TAG/TDG Group)
> Jwl Systems Department
>
> Worldlink Communications Pvt. Ltd.
>
> Jawalakhel, Nepal
>
> http://www.wlink.com.np
>
> http://teklimbu.wordpress.com
>

-- 
Sds.
Alexandre J. Correa
Onda Internet / OPinguim.net
http://www.ondainternet.com.br
http://www.opinguim.net
Received on Fri Nov 02 2007 - 03:33:41 MDT

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