Track number of connections for each pool member
I am looking for a way to track the number of connections each pool member has currently and if that number exceeds a value write to the log file. This is in preparation to setting max connections for each pool member, but we first want to log what would occur for a week or so before we implement the hard limits. vs_a >> pool_a pool_a has four members: server_[1-10] When server_[1-10] is selected, increment the associated variable (server_[1-10]) by 1 and when that connection is closed decrease by 1. If any of the variables is greater than 100 write an entry to the log file. I already have the following code to track the virtual server connections, but I am having trouble tracking the pool member connections. Thanks in advance! when RULE_INIT { Set a global max for number of concurrent TCP connections set ::capture_sco2_max_connections 8800 Initialize a counter for active connections (don't modify this) set ::capture_sco2_active_connections 0 } when HTTP_REQUEST { If we're over the limit for this connection, write to log file if {$::capture_sco2_active_connections > $::capture_sco2_max_connections} { log local0. "capture_sco2 has exceeded its connection limit and the status page would have been presented" } else { If we're over the limit for this connection, write to log file incr $::capture_sco2_active_connections 1 } } when CLIENT_CLOSED { Decrease capture_sco2_active_connections by 1 incr $::capture_sco2_active_connections -1 }
Question about iRule or other methods for remote logging
Hello We'd like to log any traffic coming from a certain list of subnets and going to a couple of virtual servers. It sounds like an iRule is the way to go but I'm only just starting to learn about them so I'm looking for some examples of what they should look like. We'd like to log traffic coming in to one virtual server on port 80 and the other on port 443. Any pointers? It may be a non-issue but we're also concerned about the potential resource impact on the F5, as the virtual servers we would be applying the iRules to receive a huge number of connections per second. Are there other better ways to achieve the logging we need? Thanks LB