You are confusing number of Apache processes with file handles/sockets.  The 
error message
>>>>> Too many open files in system:Some/path/on/system
refers to the latter, the number of connections is the former.


Chuck


On Apr 6, 2011, at 12:10 PM, Johnny Miller wrote:

> Mssr. Robert,
> 
> Thank you for the suggestion.  If I run the command you suggested I get a 
> fluctuating count between 3 and 9.  While that is way below the threshold you 
> suggested I'm not sure I'm convinced that is the whole story.  Otherwise why 
> would I be having a problem?
> 
> Best,
> 
> Johnny
> 
> On Apr 6, 2011, at 8:54 AM, Pascal Robert wrote:
> 
>> 
>> Le 2011-04-06 à 14:38, Johnny Miller a écrit :
>> 
>>> Hi Johan,
>>> 
>>> Yeah, I'm not doing anything unusual like creating a DB connection per 
>>> server.
>>> 
>>> If I run from the CLI:
>>> 
>>> sudo lsof | grep httpd | wc -l
>>> 
>>> The count kind of bounces up and down between 500 - 1,500
>>> 
>>> If I just look at the contents instead of the count I see a bunch of 
>>> redundant connections to access_log and the various modules (see below)
>>> 
>>> To be honest I'm out of my element here, so I'm not sure if this is unusual 
>>> or not.  I've updated the apache's launch daemon plist to increase the 
>>> number of connections apache is allowed to 2048
>> 
>> MaxClient and ServerLimit set to 2048??  Are you sure that you need that 
>> much clients? I think I never set that value pass 384.
>> 
>> How many httpd processes do you have? You can find out like this:
>> 
>>   # lsof -P | grep "/usr/sbin/httpd" | wc -l
>> 
>>> and I've gone a couple of days without a failure.  But I did do an 
>>> intentional restart last night.  Prior to altering the plist I was seeing 
>>> apache going into the unresponsive state about every 24 hours.
>>> 
>>> When I called Apple they told me to run netstat -m and look at this section:
>>> 
>>> 0 requests for memory denied
>>> 0 requests for memory delayed
>>> 
>>> If that goes over 0 you can increase the memory buffer per this article: 
>>> http://support.apple.com/kb/HT3512  But I've yet to see that number go over 
>>> zero.
>>> 
>>> (this prints out several times)
>>> httpd     6511           _www  txt       REG       14,2    1996352   
>>> 17733353 /usr/sbin/httpd
>>> httpd     6511           _www  txt       REG       14,2     393792   
>>> 17733502 /usr/lib/libaprutil-1.0.2.7.dylib
>>> httpd     6511           _www  txt       REG       14,2     651248      
>>> 15133 /usr/lib/libexpat.1.5.0.dylib
>>> httpd     6511           _www  txt       REG       14,2    4147008      
>>> 15324 /usr/lib/libiconv.2.dylib
>>> httpd     6511           _www  txt       REG       14,2     578656   
>>> 17733501 /usr/lib/libapr-1.0.2.7.dylib
>>> httpd     6511           _www  txt       REG       14,2      53888   
>>> 17733291 /usr/libexec/apache2/mod_authn_file.so
>>> httpd     6511           _www  txt       REG       14,2      66500   
>>> 17733295 /usr/libexec/apache2/mod_authz_host.so
>>> httpd     6511           _www  txt       REG       14,2     201360   
>>> 17733299 /usr/libexec/apache2/mod_cache.so
>>> httpd     6511           _www  txt       REG       14,2      70660   
>>> 17733308 /usr/libexec/apache2/mod_dumpio.so
>>> httpd     6511           _www  txt       REG       14,2     126528   
>>> 17733321 /usr/libexec/apache2/mod_mem_cache.so
>>> httpd     6511           _www  txt       REG       14,2     117296   
>>> 17733307 /usr/libexec/apache2/mod_disk_cache.so
>>> httpd     6511           _www  txt       REG       14,2     105944   
>>> 17733311 /usr/libexec/apache2/mod_ext_filter.so
>>> httpd     6511           _www  txt       REG       14,2     245316   
>>> 17733316 /usr/libexec/apache2/mod_include.so
>>> httpd     6511           _www  txt       REG       14,2      91784   
>>> 17733312 /usr/libexec/apache2/mod_filter.so
>>> httpd     6511           _www  txt       REG       14,2     121380   
>>> 17733305 /usr/libexec/apache2/mod_deflate.so
>>> httpd     6511           _www  txt       REG       14,2     126208   
>>> 17733318 /usr/libexec/apache2/mod_log_config.so
>>> httpd     6511           _www  txt       REG       14,2      54200   
>>> 17733320 /usr/libexec/apache2/mod_logio.so
>>> httpd     6511           _www  txt       REG       14,2      53956   
>>> 17733309 /usr/libexec/apache2/mod_env.so
>>> httpd     6511           _www  txt       REG       14,2      71040   
>>> 17733310 /usr/libexec/apache2/mod_expires.so
>>> httpd     6511           _www  txt       REG       14,2     100768   
>>> 17733313 /usr/libexec/apache2/mod_headers.so
>>> httpd     6511           _www  txt       REG       14,2      66568   
>>> 17733314 /usr/libexec/apache2/mod_ident.so
>>> httpd     6511           _www  txt       REG       14,2      70940   
>>> 17733334 /usr/libexec/apache2/mod_setenvif.so
>>> httpd     6511           _www  txt       REG       14,2     378832   
>>> 17733325 /usr/libexec/apache2/mod_proxy.so
>>> httpd     6511           _www  txt       REG       14,2     168484   
>>> 17733330 /usr/libexec/apache2/mod_proxy_http.so
>>> httpd     6511           _www  txt       REG       14,2     138088   
>>> 17733327 /usr/libexec/apache2/mod_proxy_balancer.so
>>> httpd     6511           _www  txt       REG       14,2     786308   
>>> 17733336 /usr/libexec/apache2/mod_ssl.so
>>> httpd     6511           _www  txt       REG       14,2     915632   
>>> 17731671 /usr/lib/libssl.0.9.7.dylib
>>> httpd     6511           _www  txt       REG       14,2     100588   
>>> 17733322 /usr/libexec/apache2/mod_mime.so
>>> httpd     6511           _www  txt       REG       14,2     120612   
>>> 17733337 /usr/libexec/apache2/mod_status.so
>>> httpd     6511           _www  txt       REG       14,2     176016   
>>> 17733298 /usr/libexec/apache2/mod_autoindex.so
>>> httpd     6511           _www  txt       REG       14,2      54000   
>>> 17733284 /usr/libexec/apache2/mod_asis.so
>>> httpd     6511           _www  txt       REG       14,2     101080   
>>> 17733317 /usr/libexec/apache2/mod_info.so
>>> httpd     6511           _www  txt       REG       14,2     127384   
>>> 17733301 /usr/libexec/apache2/mod_cgi.so
>>> httpd     6511           _www  txt       REG       14,2      70560   
>>> 17733343 /usr/libexec/apache2/mod_vhost_alias.so
>>> httpd     6511           _www  txt       REG       14,2     167388   
>>> 17733324 /usr/libexec/apache2/mod_negotiation.so
>>> httpd     6511           _www  txt       REG       14,2      66448   
>>> 17733306 /usr/libexec/apache2/mod_dir.so
>>> httpd     6511           _www  txt       REG       14,2      95568   
>>> 17733315 /usr/libexec/apache2/mod_imagemap.so
>>> httpd     6511           _www  txt       REG       14,2      58204   
>>> 17733282 /usr/libexec/apache2/mod_actions.so
>>> httpd     6511           _www  txt       REG       14,2      71144   
>>> 17733335 /usr/libexec/apache2/mod_speling.so
>>> httpd     6511           _www  txt       REG       14,2      66460   
>>> 17733340 /usr/libexec/apache2/mod_userdir.so
>>> httpd     6511           _www  txt       REG       14,2      79308   
>>> 17733283 /usr/libexec/apache2/mod_alias.so
>>> httpd     6511           _www  txt       REG       14,2     448160     
>>> 698607 /System/Library/WebObjects/Adaptors/Apache2.2/mod_WebObjects.so
>>> httpd     6511           _www  txt       REG       14,2     305712   
>>> 17733333 /usr/libexec/apache2/mod_rewrite.so
>>> httpd     6511           _www  txt       REG       14,2     290736    
>>> 3429086 /usr/lib/libexslt.0.dylib
>>> httpd     6511           _www  txt       REG       14,2    1297968      
>>> 15260 /usr/lib/libiodbc.2.dylib
>>> httpd     6511           _www  txt       REG       14,2    1046544   
>>> 17731388 /System/Library/Frameworks/LDAP.framework/Versions/A/LDAP
>>> httpd     6511           _www  txt       REG       14,2     958864   
>>> 17733803 /usr/lib/libcurl.4.dylib
>>> httpd     6511           _www  txt       REG       14,2     401216   
>>> 17733947 /usr/lib/libsasl2.2.dylib
>>> httpd     6511           _www  txt       REG       14,2      88356     
>>> 172780 /usr/libexec/apache2/mod_auth_apple.so
>>> httpd     6511           _www  txt       REG       14,2     101284     
>>> 172785 /usr/libexec/apache2/mod_spnego_apple.so
>>> httpd     6511           _www  txt       REG       14,2     105824     
>>> 172775 
>>> /System/Library/PrivateFrameworks/SpnegoApache.framework/Versions/A/SpnegoApache
>>> httpd     6511           _www  txt       REG       14,2     684032   
>>> 17731066 
>>> /System/Library/Frameworks/DirectoryService.framework/Versions/A/DirectoryService
>>> httpd     6511           _www  txt       REG       14,2     135724     
>>> 172782 /usr/libexec/apache2/mod_digest_apple.so
>>> httpd     6511           _www  txt       REG       14,2      66280     
>>> 174412 /usr/libexec/apache2/mod_hfs_apple.so
>>> httpd     6511           _www  txt       REG       14,2    1380352   
>>> 18089764 /private/tmp/WOAdaptorState
>>> httpd     6511           _www  txt       REG       14,2   31641660   
>>> 17733495 /usr/libexec/apache2/libphp5.so
>>> httpd     6511           _www  txt       REG       14,2    1380352   
>>> 18089793 /private/tmp/WOAdaptorState
>>> httpd     6511           _www  txt       REG       14,2    1059792    
>>> 8952176 /usr/lib/dyld
>>> httpd     6511           _www  txt       REG       14,2   98283520   
>>> 17736835 /private/var/db/dyld/dyld_shared_cache_x86_64
>>> httpd     6511           _www    0r      CHR        3,2        0t0  
>>> 345489284 /dev/null
>>> 
>>> (same here this repeats many times)
>>> httpd     6511           _www   11w      REG       14,2 5055271697     
>>> 474173 /private/var/log/apache2/access_log
>>> httpd     6511           _www   12w      REG       14,2 5055271697     
>>> 474173 /private/var/log/apache2/access_log
>>> httpd     6511           _www   13w      REG       14,2 5055271697     
>>> 474173 /private/var/log/apache2/access_log
>>> httpd     6511           _www   14w      REG       14,2 5055271697     
>>> 474173 /private/var/log/apache2/access_log
>>> httpd     6511           _www   15w      REG       14,2 5055271697     
>>> 474173 /private/var/log/apache2/access_log
>>> httpd     6511           _www   16w      REG       14,2 5055271697     
>>> 474173 /private/var/log/apache2/access_log
>>> httpd     6511           _www   17w      REG       14,2 5055271697     
>>> 474173 /private/var/log/apache2/access_log
>>> httpd     6511           _www   18w      REG       14,2 5055271697     
>>> 474173 /private/var/log/apache2/access_log
>>> httpd     6511           _www   19w      REG       14,2 5055271697     
>>> 474173 /private/var/log/apache2/access_log
>>> httpd     6511           _www   20w      REG       14,2 5055271697     
>>> 474173 /private/var/log/apache2/access_log
>>> httpd     6511           _www   21w      REG       14,2 5055271697     
>>> 474173 /private/var/log/apache2/access_log
>>> httpd     6511           _www   22w      REG       14,2 5055271697     
>>> 474173 /private/var/log/apache2/access_log
>>> httpd     6511           _www   23w      REG       14,2 5055271697     
>>> 474173 /private/var/log/apache2/access_log
>>> httpd     6511           _www   24w      REG       14,2 5055271697     
>>> 474173 /private/var/log/apache2/access_log
>>> httpd     6511           _www   25w      REG       14,2 5055271697     
>>> 474173 /private/var/log/apache2/access_log
>>> httpd     6511           _www   26w      REG       14,2 5055271697     
>>> 474173 /private/var/log/apache2/access_log
>>> httpd     6511           _www   27w      REG       14,2 5055271697     
>>> 474173 /private/var/log/apache2/access_log
>>> httpd     6511           _www   28w      REG       14,2 5055271697     
>>> 474173 /private/var/log/apache2/access_log
>>> httpd     6511           _www   29w      REG       14,2 5055271697     
>>> 474173 /private/var/log/apache2/access_log
>>> httpd     6511           _www   30w      REG       14,2 5055271697     
>>> 474173 /private/var/log/apache2/access_log
>>> httpd     6511           _www   31w      REG       14,2 5055271697     
>>> 474173 /private/var/log/apache2/access_log
>>> httpd     6511           _www   32w      REG       14,2 5055271697     
>>> 474173 /private/var/log/apache2/access_log
>>> httpd     6511           _www   33w      REG       14,2 5055271697     
>>> 474173 /private/var/log/apache2/access_log
>>> httpd     6511           _www   34w      REG       14,2 5055271697     
>>> 474173 /private/var/log/apache2/access_log
>>> httpd     6511           _www   35w      REG       14,2 5055271697     
>>> 474173 /private/var/log/apache2/access_log
>>> httpd     6511           _www   36w      REG       14,2 5055271697     
>>> 474173 /private/var/log/apache2/access_log
>>> httpd     6511           _www   37w      REG       14,2 5055271697     
>>> 474173 /private/var/log/apache2/access_log
>>> 
>>> 
>>> 
>>> On Apr 6, 2011, at 7:53 AM, Johan Henselmans wrote:
>>> 
>>>> 
>>>> On 5 apr 2011, at 02:40, Johnny Miller wrote:
>>>> 
>>>>> Hi,
>>>>> 
>>>>> I was wondering if anyone else had experienced the same thing.  I have a 
>>>>> X-Serve running OS X 10.5.8 whose apache server is going into a frozen 
>>>>> state where it stops serving requests and can only be restarted by 
>>>>> rebooting the machine.  All other services seem to being running normally.
>>>>> 
>>>>> If I look at the error_log I see many variations of this error:
>>>>> 
>>>>> Too many open files in system:Some/path/on/system
>>>>> 
>>>>> I've seen this thread on the Apple discussion board: 
>>>>> http://discussions.apple.com/thread.jspa?threadID=1449787&start=15&tstart=0
>>>>> And this article in the knowledge base: http://support.apple.com/kb/HT3512
>>>>> 
>>>>> Does anyone have more wisdom to share?
>>>>> 
>>>> 
>>>> I once had a similar problem when I started my own objectstore coordinator 
>>>> for each session, along the line of:
>>>> // this causes all kinds of mayhem: do not do this at home, it creates a 
>>>> new database connection for every session
>>>> 
>>>> // EOObjectStoreCoordinator coord = new EOObjectStoreCoordinator();
>>>> // myEc = ERXEC.newEditingContext(coord);
>>>> // myEc().setDelegate(this);
>>>> 
>>>> 
>>>> After that, the database would have so many open connections after a while 
>>>> that the database would have too many open files, and would break down. 
>>>> 
>>>> I also seem to remember that some apache configuration would freeze with a 
>>>> specific log-rotation setup. (that was apache 1.3 on a FreeBSD machine)
>>>> 
>>>> Furthermore I would look for something in apache that opens a file but 
>>>> never closes these. You might use opensnoop for that, see man opensnoop, 
>>>> or lsof might give you some clues. 
>>>> 
>>>>> Thanks in advance,
>>>>> 
>>>>> Johnny Miller
>>>>> Kahalawai Media Corp
>>>>> http://www.kahalawai.com
>>>>> 
>>>>> 
>>>>> 
>>>>> _______________________________________________
>>>>> Do not post admin requests to the list. They will be ignored.
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>>>>> Help/Unsubscribe/Update your Subscription:
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>>>>> 
>>>>> This email sent to jo...@netsense.nl
>>>> 
>>>> Johan Henselmans
>>>> jo...@netsense.nl
>>>> 
>>>> 
>>>> 
>>> 
>>> Johnny Miller
>>> Kahalawai Media Corp
>>> http://www.kahalawai.com
>>> 
>>> 
>>> 
>>> _______________________________________________
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>>> This email sent to prob...@macti.ca
>> 
> 
> Johnny Miller
> Kahalawai Media Corp
> http://www.kahalawai.com
> 
> 
> 
> _______________________________________________
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-- 
Chuck Hill             Senior Consultant / VP Development

Practical WebObjects - for developers who want to increase their overall 
knowledge of WebObjects or who are trying to solve specific problems.    
http://www.global-village.net/products/practical_webobjects







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