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To generate a
license file that uses redundant servers, three servers must be
specified when the license is created. Unlike independent servers,
each SERVER line requires a port number, which can be any number
from 1024 to 32000, which is unused at your end-user site.
The order of SERVER lines in the license file (for redundant
servers) specifies the end user's desired selection order for the
master server node. If the order of the SERVER lines does not agree
in all license files, FLEMlm uses alphabetical order to determine
the master and the following messages are generated in the debug
log file.
6/26 11:00 (lmgrd) License File SERVER line order mismatch.
6/26 11:00 (lmgrd) Using alphabetical order
If the server order does not
match, the daemons come up initially but reconnection in the event
of license server node failure may not work, depending on which
node fails and who the master was before the failure. If the
automatic failover in the event of node failure is important, then
you must ensure that the order of the service lines is consistent
on all license server nodes.
When only two of the three license server nodes are up, it is
possible for the client application to experience a timeout before
connecting to the license server. Specifically, if the first
license server in the license file is down, the client application
timeouts before attempting to connect to the second server in the
license file. This timeout is set to ten seconds by default, so
there is a ten second delay before the license is granted.
NOTE:
If the first license server node is to be down for a while, the
order of the SERVER lines in the license file which the client
application reads, could be changed to avoid this timeout.
Related Topics
Example
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