Adjusts the Availability Index (AI) calculation to match the speed of
your server. To adjust
the Availability Index calculation for your server using this variable,
monitor your system
during a period of heavy usage and note the values of Expansion Factor.
Use the console
show stat server.expansionfactor. Select a value for
SERVER_TRANSINFO_RANGE such that 2 raised to the power
SERVER_TRANSINFO_RANGE is a reasonable upper bound for
expansion factor values.
For example, if
SERVER_TRANSINFO_RANGE=6, then we expect
that the expansion
factor values will not rise above 64. Monitor your system during periods
of heavy usage to
note what value of AI you want to set for your threshold. Select a value
which matches the
drop in response time at which you want failover to occur. You can also
use the console
show ai to display the server's expansion factor and
AI histories and
suggest an appropriate value for this variable.
Server_TransInfo_Range = value