CODEWITHSUNDEEP
apacheperformanceamazon-ec2
Gavin Reynoldson
Gavin Reynoldson

Reputation: 631

Tuning AWS Apache Server

I am trying to tune my AWS apache server. I have looked in: 

$: httpd/conf/httpd.conf

And I cannot find this section to edit: 

<IfModule prefork.c>
    StartServers            10
    MinSpareServers         10
    MaxSpareServers         25
    ServerLimit             128
    MaxClients              128
    MaxRequestsPerChild     0
</IfModule>

Where will I find the above settings if they are not in: httpd/conf/httpd.conf

Upvotes: 2

Views: 2314

Answers (4)

Paulo Costa
Paulo Costa

Reputation: 337

The Apache main configuration file on Amazon Linux:

/etc/httpd/conf/httpd.conf

Other configuration loaded files:

- conf.modules.d/*.conf
- conf.d/*.conf

I could not find section, then i´ve added to the main file and solve my problem.

Upvotes: 0

Abdelaziz Dabebi
Abdelaziz Dabebi

Reputation: 1638

Be sure the prefork module is enabled ( Unless you disabled it, it's enabled by default ).

The section you're looking for is in the prefork configuration file, which is in this case, in the enabled modules directory:

   /etc/apache2/mods-enabled/mpm_prefork.conf

Upvotes: 3

Mohit M
Mohit M

Reputation: 829

There are multiple factors which impact apache performance.

  1. Tune JVM
  2. Log rotation policy
  3. Tune linux kernal parameters
  4. Tune apache MPM

I assumed you have done first 3 steps and want to understand about 4th.

Step 4. check which MPM your are using with command:

[root@mohitm ~]# apachectl -V|grep "Server MPM:"
Server MPM:     prefork
[root@mohitm ~]#

To locate the httpd config file

$ /usr/sbin/apache2 -V | grep SERVER_CONFIG_FILE

-D SERVER_CONFIG_FILE="/etc/apache2/apache2.conf"
# 
# MinSpareServers: minimum number of server processes which are kept spare
# MaxSpareServers: maximum number of server processes which are kept spare
# ServerLimit: maximum value for MaxClients for the lifetime of the server
# MaxClients: maximum number of server processes allowed to start
# MaxRequestsPerChild: maximum number of requests a server process serves

<IfModule prefork.c>
StartServers      16
MinSpareServers   10
MaxSpareServers   20
ServerLimit      5024
MaxClients       5024
MaxRequestsPerChild     10000
</IfModule>
#

Upvotes: 0

Bogdan Stoica
Bogdan Stoica

Reputation: 4539

It depends on how apache was compiled. If apache was compiled with mod_event instead of prefork that section might not exist in the apache httpd.conf file. On redhat/centos distros the default location for httpd.conf file is in /etc/httpd/conf. On debian/ubuntru distros you will find httpd.conf in /etc/apache2

Upvotes: 0

Related Questions