Anyone with experience on Linux with large numbers of users telneted in?
(500+)
9:23am up 1 day, 8:50, 482 users, load average: 143.52, 87.73, 44.33
typical usage is ~4-5 load
When ever a connection drops from a user the telnetd seems to spin out
of control for about 2 minutes before finally dieing. Some times one of
our off site clients with a shacky t1 line drops 100+ users. We are
keeping track of it with a script that parses a ps -ef and hunts down
and kills these processes as fast as it can find them. This seems like
quite a hack to me :)
also,
has anyone seen where a ps will take a long time to run. I know we have
quite a race condition (that hasn't really affected us that we know of)
in the way our script runs, because a ps seems to take from 2-5minutes
to run. This is a system with 2k processes at any one time.
any suggestions would be cool.
Thanks
ps...for the security concerned about telnet running this is all on a
firewalled lan. the off site connection is a dedicated t1. These
systems don't send any traffic over the Internet directly. Although not
great for keeping out inside hackers we are pretty secure from the
Internet.
--
Bill Warner
Unix/Linux Admin.
Direct Alliance Corporation
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