Start/notes.ini Parameters/Server_Max_Possible_Trans_Time

Server_Max_Possible_Trans_Time

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Parameter: Server_Max_Possible_Trans_Time
Short description: Upper bound of transaction time (in 1/100 seconds) for calculating the availability index – above this value the index drops to 0 %.

Profile

Parameter
Server_Max_Possible_Trans_Time
Category
Performance / Memory
Component
Server
Available since
9.0.1
Supported versions
9.0.1, 10.0, 11.0, 12.0, 14.0, 14.5, 14.5.1
GUI equivalent
notes.ini only (no GUI)
Possible values
Integer in 1/100 s (default 5000 = 50 s)

Description

The availability index (Server.AvailabilityIndex) scales linearly between a minimum and a maximum transaction time. Server_Max_Possible_Trans_Time is the upper bound: if the average transaction time within the observation window exceeds this value, the server is considered “fully overloaded” (index = 0 %).
The value is given in hundredths of a second – so 5000 corresponds to 50 seconds.

Example configuration

Server_Max_Possible_Trans_Time=3000

Notes & pitfalls

  • Unit: 1/100 s, not milliseconds.
  • Pairs with Server_Min_Possible_Trans_Time, Server_Transinfo_Range, Server_MaxConcurrentTrans.
  • A value that is too small makes the index drop to 0 % unrealistically often → cluster failover triggers more frequently.
  • A value that is too large hides real problems.
  • The change takes effect after a server restart.