Kbase P95174: What is the -PendConnTime parameter?
| Autor |
Progress Software Corporation - Progress |
| Acesso |
Público |
| Publicação |
30/12/2004 |
|
Status: Unverified
GOAL:
What is the -PendConnTime parameter?
FACT(s) (Environment):
Progress 9.1B
Progress 9.1C
Progress 9.1D
OpenEdge 10.x
FIX:
Use Pending Connection Time (-PendConnTime) to prevent connection errors caused by network problems.
Syntax: -PendConnTime n, where n is the time, in seconds, allowed to the client to connect to a server.
When a client attempts to connect to a Progress database, the RDBMS assumes that if the client can reach the broker, it can also reach the server. Network problems or incorrect configuration of network devices can prevent the client from reaching the server. In such an instance, the broker, unaware that the client's connection failed, continues to increment its count of connected users. To prevent this problem, OpenEdge brokers use a "reservation" count on each server and they increment this count whenever they redirect a client to that server.
When -PendConnTime is used, the servers examine the timestamp on the latest reservation and, if the Pending Connection Time period has elapsed, the broker assumes that the client has failed to connect. The broker then clears the reservation, making the server available for new clients.