* Michael M Slusarz <slus...@horde.org> wrote: > >* Janne Peltonen <janne.pelto...@helsinki.fi> wrote: > > > >>Hi! > >> > >>We've been running IMP here at the University of Helsinki since 2001, > >>and performed a major upgrade last summer, straight into Horde Webmail > >>Edition 1.1.1. Since then, there has been no end of problems we've been > >>running into, most notably all kinds of performance problems > >>- so much so that we've been considering moving out of Horde/IMP > >>altogether. At least my boss is getting convinved that Horde just > >>doesn't work. > > > >We have 80k user accounts here. We tried to upgrade from 2.* to 3.* > >a few years ago and had to rollback due to a performance problem caused > >by a bad sql query in the code; adding more resources did not help. > > > >We tried again with Horde Webmail Edition a few weeks ago, and we had > >plenty of resources ready: 6 front-end redhat servers (in vmware - not > >my preference though), and a dual Quad-Core AMD Opteron redhat server > >(16GB mem) for the mysql database (it is used as a front-end server as > >well now). > > > >We immediately encountered performance problem, and found that it was > >caused by dynamic address matching in the compose window, and as it > >would match almost everything when you type in the first letter of an > >email address, our ldap server was brought to its knees! > > See http://bugs.horde.org/ticket/7322 - the threshold for searching is > now configurable in IMP. Additionally, there is an option that when a > compose window is opened, if a user has below a certain number of > contacts all of those contacts are loaded into the browser and any > autocomplete search is done entirely on the browser side. This is > only in IMP 5 however. > > In IMP 4 this can be worked around by modifying imp/js/autocomplete.js > - set 'minChars' to the number of characters desired before a search > is triggered.
Thanks very much for the tip. Much appreciated. Regards, Jie -- IMP mailing list - Join the hunt: http://horde.org/bounties/#imp Frequently Asked Questions: http://horde.org/faq/ To unsubscribe, mail: imp-unsubscr...@lists.horde.org
