Changes between Version 4 and Version 5 of ApacheTuning

Timestamp:

Mar 10, 2011, 9:56:02 AM (15 years ago)

Author:

Serge CHASTEL

Comment:

--

ApacheTuning

@@ -1 +1 @@
 = Apache Tuning =
 
-The goal of this page is to give some details about Apache tuning for Nebulous.
+The goal of this page is to give some details about experiments for Apache tuning in Nebulous use context. When many requests are sent to Nebulous, the Apache server displays messages in its log looking like:
 
+{{{
+[Thu Mar 10 09:11:09 2011] [info] server seems busy, (you may need to increase StartServers,
+                           or Min/MaxSpareServers), spawning 8 children, there are 0 idle, 
+                           and 128 total children
+[Thu Mar 10 09:11:10 2011] [notice] child pid 6790 exit signal Segmentation fault (11)
+[Thu Mar 10 09:11:10 2011] [notice] child pid 6791 exit signal Segmentation fault (11)
+[Thu Mar 10 09:11:10 2011] [notice] child pid 6792 exit signal Segmentation fault (11)
+[Thu Mar 10 09:11:10 2011] [notice] child pid 6793 exit signal Segmentation fault (11)
+}}}
+
+Such messages are seen when the server is overwhelmed by requests. The goal of the experiments is to determine the Apache configuration where such messages could be avoided.
 == Introduction ==