[AOLSERVER] What does 'exiting: exceeded max connections per thread' mean?

[Levy Bajamundi]

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


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