[users@httpd] unable to create worker thread

[edward.dunkle@xxxxxxxxxxx]

Apache seems to be running out of memory
on one 512Meg box but not another.  What affects the amount of memory
available to Apache?

It also fails on a 1Gig server.  But
it starts fine on one of the 512Meg servers.  I am using this configuration
on a Linux 2.4 OS:

ServerLimit 1
ThreadLimit   512
StartServers 1
MaxClients   512
MinSpareThreads 1
MaxSpareThreads   512
ThreadsPerChild   512
MaxRequestsPerChild  0


[Tue Apr 04 19:57:50 2006] [alert] (12)Cannot
allocate memory: apr_thread_create: unable to create worker thread 253
(I modified the log to give the thread
count)

Apache fails to start on a box with
this mem config:
[root@adgdevweb1 apache]# free
           
 total       used       free  
  shared    buffers     cached
Mem:        513208
    226340     286868          0
     41900      93548
-/+ buffers/cache:      90892
    422316
Swap:      1044216  
       0    1044216


But it starts OK on another box with
this config:
[root@adgsit1web apache]# free
           
 total       used       free  
  shared    buffers     cached
Mem:        515756
    342412     173344          0
     65552     158268
-/+ buffers/cache:     118592
    397164
Swap:      1048552  
    2340    1046212


And it fails to start on a box like
this:
[root@vlabptlweb1 conf]# free
         
   total       used       free
    shared    buffers     cached
Mem:       1025412
    997136      28276        
 0     131756     685040
-/+ buffers/cache:    
180340     845072
Swap:      1052248
      1272    1050976