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Fixes #8613: Missing documentation about InputTCPMaxSessions and when to change its value in rsyslog #390

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Jan 3, 2018
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Fixes #8613: Missing documentation about InputTCPMaxSessions and when to change its value in rsyslog #390

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13 changes: 13 additions & 0 deletions 43_advanced_administration/20_application_tuning.txt
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Expand Up @@ -230,6 +230,19 @@ You have two options in this situation:
All settings needing to modify '/etc/sysctl.conf' require to run 'sysctl -p'
to be applied.

===== Maximum number of TCP sessions in rsyslog

You may need to increase the maximum number of TCP sessions that rsyslog will accept.
Add to your '/etc/rsyslog.conf':

----
$ModLoad imtcp
# 500 for example, depends on the number of nodes and the agent run frequency
$InputTCPMaxSessions 500
----

Note: You can use 'MaxSessions' instead of 'InputTCPMaxSessions' on rsyslog >= 7.

===== Maximum number of file descriptors

If you plan to manage hundreds of Nodes behind a relay or a root server, you should increase
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