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Stopping and restarting Apache httpd cleanly

If you'r running an Apache httpd server and you need to restart it, then you may be used to running:
apachectl stop
apachectl start

and in close succession, those should cause only a minor blip in service of perhaps a second or two; the sort of thing that can be put down to a "sticky internet". But you can do better

apachectl restart
Runs a configuration test before it stops the old daemon so that if you've editied your configuration file and introduced a fatal error, it won't go ahead with the stop. It also means that the restart is at electronic speed after the stop, curtting the blip. But you can do better

apachectl graceful
Runs the configuration test, AND allows currently open connections to be concluded before rebooting - thus ensuring that no-one gets a partial page as you cycle your httpd.

Note - if you have allowed per-directory changes to the configuration via .htaccess files, then you don't need to restart the server in any way when they're changed - they are checked at every web site "hit".
(written 2006-03-29, updated 2006-06-05)

 
Associated topics are indexed as below, or enter http://melksh.am/nnnn for individual articles
A602 - Web Application Deployment - Apache httpd - Sourcing, Installation, Testing
  [4437] Adding a PHP build option, rotating an image based on camera data, and a new look at thumbnails in PHP - (2015-02-22)
  [3426] Automed web site testing scripted in Ruby using watir-webdriver - (2011-09-09)
  [2520] Global and Enable - two misused words! - (2009-11-30)
  [2184] Choosing the right version of Java and Tomcat - (2009-05-16)
  [2096] Where is my new Apache httpd installed - (2009-03-22)
  [2080] Using ApacheBench and jconsole to test and monitor Tomcat - (2009-03-14)
  [1945] Summary - Apache httpd build on Linux - (2008-12-14)
  [1768] What is built in to this httpd and PHP? - (2008-08-23)
  [1731] Apache httpd, MySQL, PHP - installation procedure - (2008-08-01)
  [1707] Configuring Apache httpd - (2008-07-12)
  [1455] Connecting to MySQL 5 from PHP on Mac OSX Leopard - (2007-12-03)
  [1449] Upgrade Mac OSX to Leopard, Web Server Apache httpd config lost - (2007-11-29)
  [1292] DHCP automatic IP address v Static IP - (2007-08-06)
  [1095] Apache httpd , browser, MySQL and MySQL client downloads - (2007-02-28)
  [982] Notes from the white board - (2006-12-14)
  [907] Browser -> httpd -> Tomcat -> MySQL. Restarting. - (2006-10-28)
  [550] 2006 - Making business a pleasure - (2006-01-01)
  [526] Apache httpd - serving web documents from different directories - (2005-12-12)
  [523] Apache httpd release 2.2 - (2005-12-10)


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