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Suresh_Joshi_01's avatar
Suresh_Joshi_01
Icon for Nimbostratus rankNimbostratus
Dec 01, 2013

irule_rate shaping

Hi All,   When we enabled irule_rate shaping in LTM we are facing cpu spiking issue,CPU is reached almost 90% but when we disable irule_rate shaping cpu normalize.   Pls suggest how we can solv...
nitass's avatar
nitass
Icon for Employee rankEmployee
Dec 01, 2013

can you post the irule?

 

  • Suresh_Joshi_01's avatar
    Suresh_Joshi_01
    Icon for Nimbostratus rankNimbostratus
    Dec 01, 2013
    irule_rate shaping -: when RULE_INIT { set static::maxquery 200 set static::period 300 set static::holdtime 300 } when CLIENT_DATA { if { [table lookup -subtable "blacklist" [IP::client_addr]] != "" } { reject return } set reqno [table incr "reqs:[IP::client_addr]"] table timeout "reqs:[IP::client_addr]" [expr { $static::period * 2 }] table set -subtable "reqrate:[IP::client_addr]" $reqno "ignored" indefinite $static::period if { [table keys -count -subtable "reqrate:[IP::client_addr]"] > $static::maxquery } { table add -subtable "blacklist" [IP::client_addr] "blocked" indefinite $static::holdtime log local0. "Allowed QPS exceeded for user ip [IP::client_addr]" reject return } }