Detailed information for the notes.ini Keyword: 

MailLeaveSessionsOpen


Short Description: Controlls if the server will close router sessions or not (can improve performance).

Description:

The MailLeaveSessionsOpen setting in notes.ini can be used to improve router performance by avoiding constant creation and destruction of sessions. This is handy for servers that do a lot of internal mail routing. Leaving the sessions open will lower bandwidth as handshaking between servers no longer needs to happen for each session.

MailLeaveSessionsOpen=1 will leave all sessions open.
MailLeaveSessionsOpen=2 will leave all LAN based sessions open.
MailLeaveSessionsOpen=3 will not leave any session open.

The performance savings are greater when used on servers within a cluster.

IBM Recommendation:
Ensure that the MailLeaveSessionsOpen setting in NOTES.INI has a value of '1' (or at least '2').

Restrictions:

Valid on all Domino platforms.
Valid for Domino versions 7.0 and beyond.

Related Settings:

MailLeaveSessionsOpen is a router specific setting and does not interfere with the DB server specific setting Server_Session_Timeout, or visa versa.





Default value:
When absent or set to 0, the default behavior is to leave no sessions open

Syntax:
MailLeaveSessionsOpen=0 / 1 / 2 / 3

Example:
MailLeaveSessionsOpen=2

UI equivalent:
There is no kown UI setting for this notes.ini variable. But you can specify this setting in the notes.ini settings tab of the configuration settings document.


Applies to:
Server


Valid for version:
7.0.0