Email/login failures due to ldap server overload (Apr 25, 2013)
Around 3:30pm yesterday (April 24, 2013) the load on our ldap server went up due to the large number of requests. This caused a slow down in ldap responses to our mail and file servers. Today, this slow down caused some login/webmail/email access as well as automounting of home directories on Linux machines to fail.
We have deployed an extra ldap server to remedy the problem. As of 3:10pm the new server is up and it seems to reduce the overall load and resolve the problem. If you are experiencing similar problems again (after 4 pm), please let us know via firstname.lastname@example.org.