The code that each connection thread runs to service a connection is wrapped
within a while loop that starts at whatever you set ns/threads -> maxconns to
and counts down to zero. When it reaches 0, a connection thread exits. If
ns/threads -> maxconns is set to 0, then your connection threads don't have a
limit on how many connections each one can handle and don't exit because
they've serviced a given number of connections. See the NsConnThread function
in queue.c.
/s.
On Feb 15, 2011, at 9:49 AM, Levy Bajamundi wrote:
> Hi,
>
> Since we moved to Aolserver 4.5.1, we've been getting alot of these on our
> logs: 'Notice: exiting: exceeded max connections per thread'. Does that mean
> that Aolserver is receiving more connections than it can handle? If so, what
> would you recommend us do? Our servers are running on Debian Lenny 64bit with
> 3gb ram.
>
> Here's our configurations file:
>
> set nsthread_stacksize [expr 10*128*1024]
> set adp_cachesize [expr 512*1024]
> set threads_maxthreads 18
> set threads_minthreads 1
> ...
> ns_section "ns/server/${servername}"
> ns_param directoryfile
> "index.tcl,index.tct,index.vuh,index.atcl,index.adp,index.html,index.htm"
> ns_param pageroot $pageroot
> ns_param enabletclpages true ;# Parse *.tcl files in pageroot.
> ns_param maxthreads $threads_maxthreads ;# Tune this to scale
> your server
> ns_param minthreads $threads_minthreads ;# Tune this to scale
> your server
> ns_param maxconnections [expr $threads_maxthreads * 7] ;# Max
> connections to put on queue
>
> ns_section "ns/threads"
> ns_param stacksize $nsthread_stacksize
> ns_param mutexmeter true
> ns_param maxthreads $threads_maxthreads ;# Tune this to scale
> your server
> ns_param minthreads $threads_minthreads ;# Tune this to scale
> your server
> ns_param maxconnections [expr $threads_maxthreads * 7] ;# Max
> connections to put on queue
>
>
> Here's our pools.tcl file:
>
> if {[info commands ns_pools] ne ""} {
> set cfgsection "ns/threads"
> set minthreads [ns_config $cfgsection minthreads 0]
> set maxthreads [ns_config $cfgsection maxthreads 10]
> set maxconns [ns_config $cfgsection maxconns [ns_config $cfgsection
> ConnsPerThread 100]]
> set timeout [ns_config $cfgsection threadtimeout 120]
> set spread [ns_config $cfgsection spread 20]
>
> ns_pools set default -minthreads $minthreads -maxthreads $maxthreads
> -maxconns $maxconns -timeout $timeout -spread $spread
>
> set cfgsection "ns/server/[ns_info server]"
>
> ns_log notice "default thread pool: [ns_pools get default]"
>
> set minbusythreads [ns_config $cfgsection MinBusyThreads 0]
> set maxbusythreads [ns_config $cfgsection MaxBusyThreads 10]
>
> ns_pools set error -minthreads $minbusythreads -maxthreads
> $maxbusythreads -timeout $timeout -maxconns $maxconns -spread $spread
>
> ns_log notice "error thread pool: [ns_pools get error]"
>
> if {[info commands ns_limits] ne ""} {
> if {[set maxinput [ns_config $cfgsection/module/nssock maxinput]] ne
> ""} {
> ns_limits set default -maxupload $maxinput
> }
>
> set maxwait [ns_config $cfgsection MaxWait 100]
> set maxwaittime [ns_config $cfgsection MaxWaitTime 60]
>
> ns_limits set default -maxrun $maxthreads -maxwait $maxwait -timeout
> $maxwaittime
> ns_log notice "default limits: [ns_limits get default]"
> }
> }
>
>
> Any help would be greatly appreciated.
>
>
> Thanks,
>
> Levy Bajamundi
>
> --
> AOLserver - http://www.aolserver.com/
>
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>
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