Am 29.04.2013 18:01, schrieb Robert Schetterer:
> doing touch method may slow down your i.e cluster filesystem, database > etc specially with high frequent logins, related how/what you need such > timestamps > you can get them from logs too, to get an idea If a system's breaking down by touching one file per login this system should never host users, that receive more then 20 mails per day. EVERY single stupid e-mail generates MUCH more I/O then touching last-login. Every log line generates as much I/O, als touching this file. Anyway, I never believed that cluster filesystems are a usable storage system for mailservers. I don't like and recommend cluster filesystems for that. But, sure, your way with cron saves some I/O, that's right. I just remembered, that in our LDAP-lastlogin-script we simply built in a check that READ lastlogin befor updating it and that just updated lastlogin, if lastlogin differs from the actual date. In that case every user generates just one LDAP-write per day, which was quite okay. Peer - Heinlein Support GmbH Schwedter Str. 8/9b, 10119 Berlin http://www.heinlein-support.de Tel: 030 / 405051-42 Fax: 030 / 405051-19 Zwangsangaben lt. §35a GmbHG: HRB 93818 B / Amtsgericht Berlin-Charlottenburg, Geschäftsführer: Peer Heinlein -- Sitz: Berlin
