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Documentation cleanups for github release.
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=pod | ||
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=head1 SUMMARY | ||
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IPC::Locker provides a server for locks and a Perl package for clients to | ||
access that server. The result is that clients can access named locks on a | ||
Internet wide basis, solving critical section problems without the mess of | ||
NFS or other file locking techniques. | ||
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The latest version is available from CPAN and from | ||
L<https://www.veripool.org/ipc-locker>. | ||
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=head1 EXAMPLE | ||
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use IPC::Locker; | ||
# ... | ||
my $lock = IPC::Locker->lock(host=>'example.std.com'); | ||
# ... Critical section ... | ||
$lock->unlock; | ||
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=head1 INSTALLATION | ||
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=head2 Build and Install the Package | ||
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=head3 Install from CPAN: | ||
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cpan install IPC::Locker | ||
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=head3 Or, build from sources: | ||
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# Obtain distribution kit | ||
git clone git@github.com:veripool/IPC-Locker.git | ||
# Build | ||
cd IPC-Locker | ||
git pull | ||
perl Makefile.PL | ||
make | ||
make test | ||
make install | ||
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=head2 Install the Daemons | ||
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You may wish to install C<lockerd> and C<pidstatd> in a init.rc file so | ||
that it is run at system startup. Depending on your distribution, you may | ||
be able to just: | ||
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cp init.d/lockerd /etc/init.d/lockerd # On one server only | ||
cp init.d/pidstatd /etc/init.d/pidstatd # On all machines | ||
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Edit paths in above to point to /usr/bin instead of /usr/local/bin, if needed. | ||
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service lockerd start # On one server only | ||
service pidstatd start # On all machines | ||
chkconfig lockerd on # On one server only | ||
chkconfig pidstatd on # On all machines | ||
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If you get "This account is currently not available." you need to change | ||
the daemon account from a shell of /sbin/nologin to /sbin/bash. | ||
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=head2 Nagios | ||
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If you are using Nagios http://www.nagios.org, sample scripts to check the | ||
daemons are included in the nagios subdirectory. | ||
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=head1 DOCUMENTATION | ||
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IPC::Locker provides the following programs/packages: | ||
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=head2 lockerd | ||
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C<lockerd> is the daemon that supports IPC::Locker. See C<man | ||
lockerd> after installation. | ||
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=head2 IPC::PidStat | ||
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C<IPC::PidStat> is a Perl package which answers the question, "is pid X | ||
running on host Y?". See C<man IPC::PidStat> after installation. | ||
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=head2 pidstat | ||
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C<pidstat> is a program which answers the question, "is pid X running on | ||
host Y?". See C<man pidstat> after installation. | ||
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=head2 pidstatd | ||
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C<pidstat> is the daemon that supports C<IPC::PidStat> and C<pidstat>. See | ||
C<man pidstatd> after installation. | ||
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=head2 pidwatch | ||
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C<pidwatch> is a program which starts other programs, and kill that program | ||
when another job exists. See C<man pidwatch> after installation. | ||
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=head2 uriexec | ||
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C<uriexec> is a simple wrapper which allows executing a command which is | ||
quoted using URI escapes. This prevents layered shells from interpreting | ||
special characters. See C<man uriexec> after installation. | ||
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=head2 check_lockerd and check_pidstatd | ||
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C<check_lockerd> and C<check_pidstatd> are Nagios plugins to check | ||
C<lockerd> and C<pidstatd>. See the Nagios documentation at | ||
https://www.nagios.org for information on installing plugins. | ||
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=head1 LICENSE | ||
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This package is Copyright 1999-2019 by Wilson Snyder <wsnyder@wsnyder.org>. | ||
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This program is free software; you can redistribute it and/or modify it | ||
under the terms of either the GNU Lesser General Public License Version 3 | ||
or the Perl Artistic License Version 2.0. This code is provided with no | ||
warranty of any kind, and is used entirely at your own risk. |
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