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Hello Linux LVS List!
I'm proud to anounce the ipvsman/d program as a contribution to
the LVS project.
http://sourceforge.net/projects/ipvsman/
ipvsman is a curses based GUI to the IPVS loadbalancer written in python.
ipvsmand is a monitoring instance of ipvsman to achive the desired state
of the loadbalancing as ldirectord does.
Design goals:
-----------------
* model-view-controller paradigma:
- model : IPVS modul (does the loadbalancing)
- view : ipvsman GUI (shows the state of IPVS and ipvsmand)
- controller : ipvsmand Daemon (checks the availability of
realservers and suspendes or resumes them)
* robustness: ipvsman and ipvsmand were operating on the same (99%)
datastructures. So they are "thinking"
exactly the same way. ipvsman shares nothing with ipvsmand at runtime.
ipvsman communicates with ipvsmand only
on behalf of the admin over one unix signal kill -HUP. The GUI is not
capable to do any harm to the daemon.
Advantages:
----------------
* Steer your ipvs-Cluster in realtime. View number of connections and
connection per second for all your realservers.
* Adjust weigth of realservers by simply pressing + or -
* Assign/Remove realservers from services by choosing them from your
easily defined service topology
* Define a service topology with one config-line:
MyService:t:193.123.45.12:80
["Intel_web1-10:10.3.0.10+:8080","AMD_spare5+:10.4.6.24-28:80"] (-m -swrr)
Defines a TCP service named "MyService" at Port 80
using the real servers "Intel_web1", "Intel_web2",..,"Intel_web10" with
IPs 10.3.0.10, 10.3.0.11, .., 10.3.0.21 at Port 8080
and the realservers "AMD_spare5", "AMD_spare6",..,"AMD_spare9" at IPs
10.4.6.24 .. 10.4.6.24 at port 80. Using
"-m" Masquerading as forwarding mechanism and "-swrr" weigthed round
robin as sheduling strategy.
* Chronology of your configuration files
* Extendible plugin architecture
* Debian Packages and python installer avaible
* Is in use on portals like best-price.com with some 100.000 clicks per day.
* Open source, Python License
* Instant migration from ldirectord, can be used in parallel with ldirectord
Disadvantages:
* Still under development
* Plugins currently only for http and DNS.
* Not all topologies possible to define that are thinkable.
Please give it a look at
http://sourceforge.net/projects/ipvsman/
and read the preliminary documentation at
http://sourceforge.net/docman/display_doc.php?docid=50582&group_id=171517
Steering a loadbalancer with a realtime GUI and a monitoring daemon in
parallel
is a very complex task -
so if you have any questions or critic do not hessitate to ask me.
Best regards
Volker Jaenisch
--
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inqbus it-consulting +49 ( 341 ) 5643800
Dr. Volker Jaenisch http://www.inqbus.de
Herloßsohnstr. 12 0 4 1 5 5 Leipzig
N O T - F Ä L L E +49 ( 170 ) 3113748
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