Technical issues on Linux
Albert Cahalan
albert at ccs.neu.edu
Fri Aug 9 14:44:09 EDT 1996
> I'm looking for hints on fixing any of three technical problems
> associated with managing high-volume Linux servers...
I think you are looking in the wrong place.
> 1) The TCP connect() system call apparently never times out in current
> versions of Linux. This caused mail server crashes here during the AOL
> outage Tuesday (hundreds of sendmail processes building up, waiting
> indefinitely for the AOL server to come back up).
Tell Alan Cox, or linux-kernel at vger.rutgers.edu.
> 2) Packet fragmentation problems lead to frequent complaints that the
> web pages can't be viewed without glitches (this includes www.bcs.org).
Tell Alan Cox, or linux-kernel at vger.rutgers.edu.
> 3) I notice syslogd taking up an inordinate amount of processor time,
> causing slowdowns in POP3 email access and logins (ftp, etc). Sometimes
> it takes upwards of a minute for an item to get logged, if a lot of
> system activity is taking place, during which the syslogd process (on a
> P-133, mind you) is racking up 80% or more of CPU usage.
You need the person who runs the Linux network at some cancer
hospital. Dr. W... maybe.
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