On 26.9.2012, at 20.34, Kelsey Cummings wrote: > The following errors on the directors that started after this went unnoticed > until this AM. > > director: User bb host lookup failed: Timeout - queued for 30 secs (Ring > synced for 36 secs) > director: User cc host lookup failed: Timeout - queued for 48 secs (Ring > synced for 66 secs, user refreshed 12 secs ago) > director: User dd host lookup failed: Timeout - queued for 124 secs (Ring > synced for 119 secs, weak user, user refreshed 155 secs ago) > director: User ee host lookup failed: Timeout - queued for 79 secs (Ring > synced for 119 secs, weak user, user refreshed 113 secs ago) > ... > User ff host lookup failed: Timeout - queued for 30 secs (Ring synced for > 7427 secs, weak user, user refreshed 620 secs ago) > > This continued, combined with occasional login timeouts (as reported by some > internal imap clients.) The login delays/timeouts got bad enough that our > load balancers dropped both the servers while I was investigating. They seem > to be okay after being restarted.
After the first few minutes, did all the rest of the error messages contain "weak user" string? Did this happen to a lot of different users (few/some/most)? director_user_expire setting is the default 15 minutes?
