96
This is for scheduling priority weight. Valid integer numbers are between 1 and 100. A
server that has a weight of 2 will be directed twice as much traffic as a server with a weight
of 1.
A special zero weight setting is provided for a graceful shutdown of a server. When the
weight is changed to zero, the WebMux will not send new connections, but will maintain all
current connections to the server. The connections will gradually reduce to zero as current
clients’ sessions terminated. When there are no connections, the server is functionally
“dead” or off line until the weight is changed back to a valid number. Then the server can
then be shutdown or taken out of service without affecting any users.
Warning!
Unlike a server that can go down unexpectedly, the WebMux will not move
a STANDBY server to ACTIVE when one or more
server’s weight is set to
zero. If the weight of all the servers in a farm were set to zero, then the
farm would
be “down” because none of the servers are accepting new
connections.
If your scheduling method is of the “persistent” type, be aware that the
WebMux will continue to honor those existing persistent sessions. If you have clients
that continue to return before the persistence timeout has expired, then you will
continue to see connections coming in.
Run State
Active
- The server will be put into service immediately after it is added. If there are
servers in the farm in Standby, the WebMux will activate a Standby server in its place if it
goes out of service. When the original server comes back in service, it will stay in
Standby mode until manually setting its run state to Active again through the browser
interface. This will give the system administrator time to fix the system or reboot the
server once some software/hardware update is completed.
Favorite Active
- The server will be put into service immediately after it is added. If a
Favorite Active server failed, once it is operational, the WebMux will automatically put it
back to the Active state.
Standby
- The server will be put into STANDBY, or backup, mode after it is added. The
WebMux will change a STANDBY server to ACTIVE when one or more ACTIVE servers
fail. The weights will also have an effect on the number of standby servers that are
activated. If the failed active server had a weight of 20 and there are two standby
servers with the weight of 10, the WebMux will activate the two standby servers to make
up the difference.
Last Resort Standby
- The server will be put into STANDBY state. Unless all other
servers are out of services, this server will not be switch in. This will allow the last server
to show a different web page from others.
Modify Farm
The
“Modify Farm” screen can be invoked from the main management console screen by clicking
on the farm IP address or selecting a radio button of a farm and clicking the “Modify Farm” button
on the left side of the screen.
