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Linux Virtual Server Development STATUS:
Last modified at [$Date: 1999/3/23 $]
Plan:
Everyone with plans on things they want to do for Linux Virtual Server
should add them to the repository now.
Open issues:
* Porting the virtual server patch to kernel 2.2
The virtual server patch is ported to kernel 2.2 still as a part of
IP masquerading.
Status: brad has volunteered. wensong will merge most of the vs codes
into the separate file like ip_pfvs.c, and may help the
porting too.
* Adding the virtual server patch into the Rusty's netfilter framework.
See http://www.rustcorp.com/linux/index.html
The NAT/masq/redirect/load-sharing/packet filtering is merged together
in the netfilter framework. It should be the final place for the vs
codes to stay. It is a long time work, the netfilter framework
is aimed for 2.3, and it will take quite a long time for 2.4 to be used
in the production environment. However, it is the long future plan of
the virtual server.
+1: wensong
-0:
* Minimizing the overhead of timing of masquerading entries
+1: peter, wensong
-0:
Status: peter has volunteered
* The separate virtual service handling modules.
Since the ip_masq application modules are provided for the masquerading
users to access the remote service, the virtual server handling is just
in the reverse for the protocol that transmit addresses or port numberes
as application data. If we just change those ip_masq application to
support virtual service for those protocols (like current virtual FTP
service implementation, it is not efficent solution. A good solution
is to develop separate virtual service handling modules.
+1: wensong
-0:
Status: nobody has volunteered yet.
* Implement the dispatching technology of IBM Network Dispatcher into
the virtual server patch.
See http://www.software.ibm.com/enetwork/dispatcher
+1:
-0:
* The easy-install and easy-use cluster management software
+1: rob
-0:
Status: Rob has done 30% of job. He has been caught up in other
pay-rob-lots-of-money-to-write-code projects, and he will get
back into it when he has time. :-)
* Integrate (improve if needed) Alan's heartbeat code in the virtual server
to setup a backup of LinuxDirector.
See http://www.henge.com/~alanr/ha/
+1: wensong
-0:
Status: Wensong used the heartbeat code to build a backup of
LinuxDirector. The backup will take over the virtual IP
address if it cannot hear the heartbeat message "I'm alive"
from the primary in two seconds. wensong will put the
setup instruction on the web page soon.
* Load-informed scheduling
The agents running on real servers collect the load and memory information
and send them to the agent(poller) running on the LinuxDirector, and the
poller give load information to the ippfvs in the kernel, the ippfvs
balances packets over real servers according to load information.
+1: matthew, wensong
-0:
Status: matthew has implemented this scheduling in the Zaphod project
(a rack-mounted multiple computer web server) in the Corel
Computer Corpration. wensong will try to merge his patch
into the next version or
next-next version...
Closed issues:
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