Connection Limit iRule vs Pool member connection limit

Forums Technical Forums
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1

Hi,

for some reason a pool member connection limit (set to 1) still lets another user connect to RDP. Only when an iRule is applied, it drops additional connections.

Can someone help?

the Rule follows:

--

when RULE_INIT {

set ::active_connections 0

set ::max_connections 1

}

when CLIENT_ACCEPTED {

if {$::active_connections > $::max_connections } {

set over_limit 1

} else {

incr ::active_connections 1

}

}

when USER_REQUEST {

if {$over_limit}{

TCP::respond “connection busy command\r\n”

TCP::close

}

}

when CLIENT_CLOSED {

incr ::active_connections -1

}

2

Hi,

What is the Load Balancing method configured for this pool ? This may have an impact on the behaviour.

Yoann

3

least connections

4

OK.

Normally the behaviour change is more related to Weighted least connection. Can you give it a go with Round Robin for example to see if you still have the same thing. Just to try to identify precisely the issue…

Yoann

5

Hi

Just tried, and seems OK on 14.1.0.3.

Also check if you are not impacted by this : myF5

Yoann

6

thank you for your help

by seems OK you mean the iRule is working?

7

No.

I implemented the limit on a pool, it it goes “Yellow” when limit is reached. So wihtoug iRule, the limitation is working…

Yoann