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What does Apachectl graceful do?
apachectl graceful: Gracefully restarts the Apache daemon by sending it a SIGUSR1. If the daemon is not running, it is started. This differs from a normal restart in that currently open connections are not aborted. A side effect is that old log files will not be closed immediately.
What is Httpd worker process?
1) Upon a spike in heavier load, httpd. worker processes consume more CPU then they should until system reaches a CPU limit. Even if load subsides without hitting the limit, some httpd. worker processes still consume more CPU than others, but apparently not processing requests.
How does apachectl help control Apache HTTPd daemon?
It is designed to help the administrator control the functioning of the Apache httpd daemon. The apachectl script can operate in two modes. First, it can act as a simple front-end to the httpd command that simply sets any necessary environment variables and then invokes httpd, passing through any command line arguments.
Where can I find the Apache HTTP Server?
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What does apachectl-Apache HTTP server control interface-Apache?
This means that if used in a log rotation script, a substantial delay may be necessary to ensure that the old log files are closed before processing them. This command automatically checks the configuration files as in configtestbefore initiating the restart to make sure Apache doesn’t die.
Do you need to edit apachectlscript for non-standard paths?
If your Apache installation uses non-standard paths, you will need to edit the apachectlscript to set the appropriate paths to the httpdbinary. You can also specify any necessary httpdcommand line arguments. See the comments in the script for details.