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danielc's avatar
danielc
Icon for Cirrus rankCirrus
Jul 07, 2022
Solved

A simple way to unset all variable during Client_CLOSED ?

Hello,

I have a CLOSED_CONNECTION irule at the end of the VS to unset all variables:

 
when CLIENT_CLOSED {
  TCP::close
  
  if { [info exists demo1] } {
    unset demo1
  }
  if { [info exists demo2] } {
    unset demo2
  }
 
,,,,,
 
 }
However If I have 1000 variable sauy demo1 to demo1000, then I will need to if 1000 times here to unset them, Is there any simple way can unset all variables during CLIENT_CLOSED ? Thanks
devops
  • Kevin_Davies's avatar
    Kevin_Davies
    Jul 07, 2022

    Variables are scoped to the connection. After its closed they no longer exist. The only time this is not the case when you create global variables via rule_init. So there is no need to delete these.

3 Replies

  • Kevin_Davies's avatar
    Kevin_Davies
    Icon for Nacreous rankNacreous
    Jul 07, 2022

    Variables are scoped to the connection. After its closed they no longer exist. The only time this is not the case when you create global variables via rule_init. So there is no need to delete these.

    • danielc's avatar
      danielc
      Icon for Cirrus rankCirrus
      Jul 11, 2022

      Hello Kevin,

      Thanks for the answer. Just want to confirm , what you said also apply to " TCP::close " , right?

      • Kevin_Davies's avatar
        Kevin_Davies
        Icon for Nacreous rankNacreous
        Jul 11, 2022

        TCP::close is triggered at the close of the connection. Right after the processing of any iRule events related to that connection, the variables should no longer exist. A connection is a TCP session defined by quatuple of source-ip:source-port and destination-ip:destination-port.