Mick, Thanks for your expertise and time. Here are my settings in httpd.conf, which I've tweaked in the last couple days per some advice from my host. <IfModule prefork.c> StartServers 2 MinSpareServers 2 MaxSpareServers 5 ServerLimit 200 MaxClients 200 MaxRequestsPerChild 4000 </IfModule> And here's the ulimit: # ulimit -a core file size (blocks, -c) 0 data seg size (kbytes, -d) unlimited file size (blocks, -f) unlimited pending signals (-i) 1024 max locked memory (kbytes, -l) 32 max memory size (kbytes, -m) unlimited open files (-n) 1024 pipe size (512 bytes, -p) 8 POSIX message queues (bytes, -q) 819200 stack size (kbytes, -s) 10240 cpu time (seconds, -t) unlimited max user processes (-u) 137215 virtual memory (kbytes, -v) unlimited file locks (-x) unlimited How would I do the sort of math you propose? Thanks, Ben. Mick Sheppard wrote: > > Hi, > > Just to throw a slight spanner in the works here. My understanding of > 'open files' is open file descriptors. As far as a file descriptor is > concerned there is no real difference between a physical file on disk > and a socket (network connection). So eliminating physical files, whilst > it might get you a little more headroom, is unlikely to solve the > problem. > > I would look at the Apache configuration to see how many connections > your server is configured to handle and compare that to the max files > value from ulimit. I suspect that this is your issue. > > Remember that as you add connectivity to databases that this will > increase the number of sockets, and therefore open files, used for each > page served. > > Mick > > -----Original Message----- > From: palewire [mailto:ben.welsh@xxxxxxxxx] > Sent: 20 May 2009 23:55 > To: users@xxxxxxxxxxxxxxxx > Subject: Re: What is the best way to handle "too many open > files" errors? > > > Sean -- > > Thanks for the lengthy and thoughtful response. > > What I've found most successful so far is hunting through the lsof | > grep > http and finding ways to eliminate unnecessary files. And I'm also > exploring > an expansion of my production resources to include a second tier machine > that houses the database. > > If either of these ideas are stupid -- or there's something more > efficient > -- I'd really appreciate the pointers. > > Thank you. > > Ben. > -- > View this message in context: > http://www.nabble.com/-users%40httpd--What-is-the-best-way-to-handle-%22 > too-many-open-files%22-errors--tp23629492p23644950.html > Sent from the Apache HTTP Server - Users mailing list archive at > Nabble.com. > > > --------------------------------------------------------------------- > The official User-To-User support forum of the Apache HTTP Server > Project. > See <URL:http://httpd.apache.org/userslist.html> for more info. > To unsubscribe, e-mail: users-unsubscribe@xxxxxxxxxxxxxxxx > " from the digest: users-digest-unsubscribe@xxxxxxxxxxxxxxxx > For additional commands, e-mail: users-help@xxxxxxxxxxxxxxxx > > > This is an email from the CPP Group Plc, Holgate Park, York, YO26 4GA; > telephone +44 (0)1904 544500. > This message may contain information that is confidential. If you are not > the intended recipient, > you may not peruse, use, disseminate, distribute or copy this message. If > you have received this > message in error, please notify the sender immediately by email, facsimile > or telephone and either > return or destroy the original message. > > The CPP Group Plc accepts no responsibility for any changes made to this > message after it has been > sent by the original author. This email has been scanned for all viruses > by the MessageLabs > Email Security System. > > --------------------------------------------------------------------- > The official User-To-User support forum of the Apache HTTP Server Project. > See <URL:http://httpd.apache.org/userslist.html> for more info. > To unsubscribe, e-mail: users-unsubscribe@xxxxxxxxxxxxxxxx > " from the digest: users-digest-unsubscribe@xxxxxxxxxxxxxxxx > For additional commands, e-mail: users-help@xxxxxxxxxxxxxxxx > > > -- View this message in context: http://www.nabble.com/-users%40httpd--What-is-the-best-way-to-handle-%22too-many-open-files%22-errors--tp23629492p23662369.html Sent from the Apache HTTP Server - Users mailing list archive at Nabble.com. --------------------------------------------------------------------- The official User-To-User support forum of the Apache HTTP Server Project. See <URL:http://httpd.apache.org/userslist.html> for more info. To unsubscribe, e-mail: users-unsubscribe@xxxxxxxxxxxxxxxx " from the digest: users-digest-unsubscribe@xxxxxxxxxxxxxxxx For additional commands, e-mail: users-help@xxxxxxxxxxxxxxxx
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