mike kenny cibzxongmailcom feb 20 2008 929 macshane tracy kvsupyeuwjmpcairservicesaustraliacom wrote oigxspoibehdxpsropostfixorg mailtooigxspoibehdxpsropostfixorg behalf mike kenny sent wednesday 20 february 2008 612 pm postfix users subject postfix making many queries ldap know queried year ago received responses explained happening ie extra queries required ensure mail address another alias different components postfix require access related data however responses clarify important points 1 subsequent queries use different portions address lhs combinations rhs valid addresses 2 turn feature 3 turn cant achieve 2 least answer 1 andor 3 may help justify excess query traffic ldap admins whose complaints getting louder day claiming 80 queries ldap entries could exist eg help mike ________________________________ others might able speak query mechanism suggestion stop remote queries ldap possible doesnt mean take dumps windows ad required attributes twohourly basis day use generate hashed map files actual address resolution postfix servers dump interval probably represent kpis might relation accountmail account creation speeding query time looking local maps youre annoying ldap administrators constantly thrashing internal network lookups spurious course probably performance tradeoffs hash whatever maps get large dump process takes long believe hash maps comfortably deal enough entries largest organisations thanks tracy million relevant records ldap requirement minimize latency constant updates throughout day night dont think work us without major rearchitecture mike thu 07 aug 2008 115415 0200 postfix making many queries ldap