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Diffstat (limited to 'doc/benefits.html')
| -rw-r--r-- | doc/benefits.html | 10 |
1 files changed, 10 insertions, 0 deletions
diff --git a/doc/benefits.html b/doc/benefits.html index 193e734..b1687d9 100644 --- a/doc/benefits.html +++ b/doc/benefits.html @@ -37,6 +37,10 @@ This reliable interface to control daemons and supervisors obsoletes pid-guessing programs, such as <tt>pidof</tt>, <tt>killall</tt>, <tt>start-stop-daemon</tt>, which, due to guessing, are prone to failures by design. +It also obsoletes so called <tt>pid-files</tt>, no need for each and every +service daemon to include code to daemonize, to write the new process id +into a file, and to take care that the file is removed properly on shutdown, +which might be very difficult in case of a crash. <hr> <a name="state"><h3>Clean process state</h3></a> <i>runit</i> guarantees each service a clean process state, no matter if the @@ -81,6 +85,12 @@ With bad init scripts miraculous things could also happen when just doing # /etc/init.d/foo-daemon restart </pre> at the command line. +<p> +The clean process state includes open file descriptors, obsoleting the +widely used hack in many service daemons to force-close all file descriptors +that might be open, up to the limit of available file descriptors for the +daemon process (often results in 1024 unnecessary close() system calls in a +great number of service daemon implementations). <hr> <a name="log"><h3>Reliable logging facility</h3></a> The <a href="runsv.8.html">runsv</a> program provides a reliable logging |