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| Name: pen | Distribution: SUSE Linux Enterprise 15 SP3 |
| Version: 0.26.1 | Vendor: openSUSE |
| Release: bp153.1.1 | Build date: Mon Feb 15 06:59:31 2021 |
| Group: Productivity/Clustering/HA | Build host: obs-arm-5 |
| Size: 187306 | Source RPM: pen-0.26.1-bp153.1.1.src.rpm |
| Packager: https://bugs.opensuse.org | |
| Url: http://siag.nu/pen/ | |
| Summary: A simple load balancer for tcp based protocols | |
Pen is a load balancer for "simple" tcp based protocols such as http or
smtp. It allows several servers to appear as one to the outside and
automatically detects servers that are down and distributes clients
among the available servers. This gives high availability and scalable
performance.
The load balancing algorithm keeps track of clients and will try to
send them back to the server they visited the last time. This is useful
for applications that maintain state between connections in the server,
including most modern web applications.
When pen detects that a server is unavailable, it scans for another
starting with the server after the most recently used one. That way we
get load balancing and "fair" failover for free.
Correctly configured, pen can ensure that a server farm is always
available, even when individual servers are brought down for
maintenance or reconfiguration.
The final single point of failure, pen itself, can be eliminated by
running pen on several servers, using vrrp to decide which is active.
Authors:
--------
Ulric Eriksson <ulric@siag.nu>
GPL-2.0+
* Tue Feb 10 2015 sfalken@opensuse.org
- Update to version 0.26.1:
+ More sensible autoconfiguration defaults
+ New event management defaults
+ New penctl commands
+ New command line option -O cmd, where cmd is any penctl command
+ New penctl option "listen [address:]port"
+ Reduced default timeout to 3 seconds
+ Event Management code broken out into select.c, poll.c,
kqueue.c and epoll.c
+ New command line option -m to accept multiple incoming
connections in a batch
+ Close upfd when falling over
+ Rewrote output_net and output_file to take a variable number of
arguments.
+ Fixed mainloop_kqueue
+ Code broken out from mainloop_select into seperate functions
+ Cleaned up and simplified add_client() and associated circuitry
+ Connections to back end servers are now nonblocking and
parallel.
+ Removed the -n option and all code explicitly using blocking
sockets
+ Removed the -D option and the "delayed forward" feature.\
+ Renamed server and client fields in the conn, client, and
server structures
+ Allow write_cfg to save IPv6 and GeoIP access lists.
- Changes from 0.25.0
+ Fixed a bug in write_cfg, where Pen would try to write to an
unwritable file
- Changes from 0.24.0
+ Return UDP replies from the server to the client
- Changes from 0.23.0
+ UDP load balancing code restructured and bugfixed.
- Changes from 0.22.1
+ mainloop_select: Performance improvements under load
+ It is now possible to use a mix of ipv4 and ipv6 addresses
+ Allow square brackets [] around server addresses to deal with
server addresses with : in the name (e.g [::1]:8080)
+ Pen can now listen on ipv6 sockets in addition to ipv4 and unix
ones.
+ snprintf format error fixes
- Changes from 0.22.0
+ Updated pen manpage to clarify what the control socket does
+ Resist openign control socket running as root
+ Remove the default file name for web log
+ New Feature: unix domain listening sockets
- Changes from 0.21.1
+ Redesigned server and client structs to allow ipv6 addresses
and require less casting in the code
+ Updated penctl manpage for IPv6 and GeoIP access lists.
+ Moved defines for ACE_IPV4 et al outside #ifdef HAVE_SSL clause
- Changes from 0.21.0
+ GeoIP access lists
- Changes from 0.20.2
+ Added "special exception" clause for linking with openSSL
- Changes from 0.20.1
+ Penlog ipv6 compatible
+ Updated autoconf to 2.69
- Changes from 0.20.0
+ Updated SSL code. Protocol ssl2 removed. Default changed to
tls1
- Changes from 0.19.0
+ Added UDP patch
* Tue Aug 19 2008 joe@suse.de
- update to version 0.18.0
- fixed issues with penctl.cgi
- new priority based server selection algorithm
* Fri Nov 09 2007 joe@suse.de
- update to version 0.17.2
* Fri Nov 09 2007 lrupp@suse.de
- fix rpmlint warnings
* Thu Jun 21 2007 adrian@suse.de
- fix changelog entry order
* Fri Aug 25 2006 joe@suse.de
- update to version 0.17.1
- bugfix: server_by_weight would never consider blacklisted
servers, which kept them blacklisted indefinitely
* Wed Jan 25 2006 mls@suse.de
- converted neededforbuild to BuildRequires
* Fri Dec 16 2005 joe@suse.de
- fixed the init script give feedback on restart action
- upgraded to version 0.16.0
- the configure option for ssl is now:
- -with-experimental-only-ssl
- new "abuse server", similar to the emergency server:
use "-B host:port" to enable
* Wed Jun 09 2004 joe@suse.de
- Initial version of SUSE pen package
* Sat Jan 24 2004 joe@suse.de
- upgraded to version 0.15.0
/etc/init.d/pen /etc/pen.cfg /usr/bin/mergelogs /usr/bin/pen /usr/bin/penctl /usr/bin/penlog /usr/bin/penlogd /usr/bin/runpen.sh /usr/sbin/rcpen /usr/share/doc/packages/pen /usr/share/doc/packages/pen/AUTHORS /usr/share/doc/packages/pen/COPYING /usr/share/doc/packages/pen/ChangeLog /usr/share/doc/packages/pen/HOWTO /usr/share/doc/packages/pen/README /usr/share/doc/packages/pen/penstats /usr/share/man/man1/mergelogs.1.gz /usr/share/man/man1/pen.1.gz /usr/share/man/man1/penctl.1.gz /usr/share/man/man1/penlog.1.gz /usr/share/man/man1/penlogd.1.gz
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