| Name : perl-Proc-Watchdog
| |
| Version : 1.01
| Vendor : obs://build_opensuse_org/devel:languages:perl
|
| Release : lp155.7.1
| Date : 2023-07-20 19:46:02
|
| Group : Development/Libraries/Perl
| Source RPM : perl-Proc-Watchdog-1.01-lp155.7.1.src.rpm
|
| Size : 0.01 MB
| |
| Packager : https://www_suse_com/
| |
| Summary : Perl extension to implement (more) reliable watchdog of processes
|
Description :
This code implements a simple but effective mechanism to support Watchdogs
in your code. A watchdog is a timer that fires a determined action after a
timeout period has expired and can be used to recover hung processes. In
our particular scenario, we found a number of possible failures that would
let perl daemons that access database servers hung forever. alarm() was not
an option as the client libraries supplied by the vendor already used the
ALRM signal internally, so there was no way to quickly recover from these
failures.
It works by creating a file in the path supplied by the `-path\' argument as
seen in the synopsis. If the path is not specified, it will default to
\'/tmp\', which is nice because this dir is usually cleaned-up as part of the
boot process.
The file is created each time the \'->alarm($time)\' method is invoked, and
the value of \'$time\' is stored in it. The call to \'->reset\' unlink()s the
file.
A separate daemon (watchd) included along with this module, is called from
cron or another similar service to check on the path. It scans the watchdog
files in there looking for files older than the number of seconds in them.
After files matching this criteria are found, thus hung processes, a
SIGTERM followed by a SIGKILL are sent to the pid and the watchdog file is
unlinked. The amount of time between the TERM and KILL are configurable in
the command line.
Please do a
watchd -h
for more information about its usage.
|
RPM found in directory: /packages/linux-pbone/ftp5.gwdg.de/pub/opensuse/repositories/devel:/languages:/perl:/CPAN-P/15.5/noarch |
