Differences

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--- apache:architecture [2014/09/26 13:44] – [MPM Prefork Architecture] admin
+++ apache:architecture [2016/01/27 04:58] – [optimize load module apache] admin
@@ Line 11: / Line 11: @@
 Config example:<code>
 <IfModule mpm_prefork_module>
-    StartServers          4
+    StartServers          6
-    MinSpareServers       2
+    MinSpareServers       6
-    MaxSpareServers      6
+    MaxSpareServers      12
     MaxClients          12
     MaxRequestsPerChild   0
-</IfModule>
+</IfModule></code>
-</code>
 check config:
-  * check number of httpd process with 1 client request:<code bash>
+  * check number of httpd process with none client request:<code bash>
 ps -eaf | grep httpd
 </code>output:<code>
-root      1349     1  0 20:39 ?        00:00:00 /usr/local/apache/bin/httpd
+root      1629     1  0 20:56 ?        00:00:00 /usr/local/apache/bin/httpd
-apache    1351  1349  0 20:39 ?        00:00:00 /usr/local/apache/bin/httpd
+apache    1631  1629  0 20:56 ?        00:00:00 /usr/local/apache/bin/httpd
-apache    1352  1349  0 20:39 ?        00:00:00 /usr/local/apache/bin/httpd
+apache    1632  1629  0 20:56 ?        00:00:00 /usr/local/apache/bin/httpd
-apache    1353  1349  0 20:39 ?        00:00:00 /usr/local/apache/bin/httpd
+apache    1633  1629  0 20:56 ?        00:00:00 /usr/local/apache/bin/httpd
-apache    1354  1349  0 20:39 ?        00:00:00 /usr/local/apache/bin/httpd
+apache    1634  1629  0 20:56 ?        00:00:00 /usr/local/apache/bin/httpd
-</code> => 5 processes = StartServers + 1
+apache    1635  1629  0 20:56 ?        00:00:00 /usr/local/apache/bin/httpd
+apache    1636  1629  0 20:56 ?        00:00:00 /usr/local/apache/bin/httpd
+</code> => 7 processes = MinSpareServers + 1
   * run load test with 20 concurrecy requests to server:<code bash>
 ab -n 200 -c 20 http://shop.babies.vn/
@@ Line 182: / Line 183: @@
 apache    5360  0.1  7.6 283964 38312 ?   S    15:59   0:00 /usr/sbin/httpd
 </code>With VSZ is Virtual Memory Size(address space allocated) , and RSS is Resident Set Size (physically resident memory)
-  * pmap -x 6726 | sort -ak +2<code bash>
+  * pmap -x 6726 | sort -nk +2<code bash>
 pmap -x 6812 | sort -nk +2
 fcacac95000    2048       0       0 -----  mod_mime_magic.so
@@ Line 197: / Line 198: @@
 ===== Optimize apache and PHP config =====
 ==== optimize load module apache ====
-Config load modules below:
+Config Optimize load modules for httpd with Explain directives with these modules:
-<code bash>
-LoadModule authz_host_module modules/mod_authz_host.so
-LoadModule log_config_module modules/mod_log_config.so
-LoadModule expires_module modules/mod_expires.so
-LoadModule deflate_module modules/mod_deflate.so
-LoadModule headers_module modules/mod_headers.so
-LoadModule env_module modules/mod_env.so
-LoadModule setenvif_module modules/mod_setenvif.so
-LoadModule mime_module modules/mod_mime.so
-LoadModule autoindex_module modules/mod_autoindex.so
-LoadModule negotiation_module modules/mod_negotiation.so
-LoadModule dir_module modules/mod_dir.so
-LoadModule alias_module modules/mod_alias.so
-LoadModule rewrite_module modules/mod_rewrite.so
-</code>
-Explain directives with these modules:
 <code bash>
 LoadModule authz_host_module modules/mod_authz_host.so#Order
+LoadModule access_compat_module modules/mod_access_compat.so#Require
 LoadModule log_config_module modules/mod_log_config.so#LogFormat,TransferLog
 LoadModule expires_module modules/mod_expires.so
@@ Line 231: / Line 216: @@
 </code>
 ==== optimize load module php ====
+===== Custom Config for Apache =====
+==== Config disable warning log from browser ====
+With this config, the log will display in PHP error log but they don't display in browser side\\\
+Update httpd.conf
+<code php>
+<IfModule mod_php5.c>
+    php_admin_flag display_errors off
+</IfModule>
+</code>