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Homework and Emergencies Emergency UNIX and Linux Support AIX prompt delayed when users increase Post 302990905 by bakunin on Thursday 2nd of February 2017 02:26:07 PM
Old 02-02-2017
Quote:
Originally Posted by ggayathri
Can someone suggest a way to overcome this situation?
Maybe, but to do so we need to know more about the system:

How many is an "increased number" of users? (no exact number required, but are we talking about 10, 100 or 1000 users here?)

What is the size of the system? How many processors? How much memory? Have you tried a vmstat -tw 1 in a time of many users? also a vmstat -vs might help. If so, please post significant portions of the outpput here (within CODE-tags).

How is the name resolution done? We had "network problems", where the network was working fine but the name server took a long time to answer so that the connection seemed to be made slowly. Overall, can you describe you network a bit (in case the culprit is there)?

How is your system used by the many users you describe? Are they using a certain application, working on the command line mainly, do they only connect via the application layer (like a database running on the server and your users use DB Visualizer or a similar tool to connect to it)?

This is - off the top of my head - all i can come up with. Please provide a few more data and we take it from there.

I hope this helps.

bakunin

/PS: seems like i am not typing fast enough to catch up with Don. ;-)
 

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rwho(1) 						      General Commands Manual							   rwho(1)

NAME
rwho - show who is logged in on local machines SYNOPSIS
DESCRIPTION
produces output similar to the output of the HP-UX command for all machines on the local network that are running the daemon (see who(1) and rwhod(1M)). If has not received a report from a machine for 11 minutes, assumes the machine is down and does not report users last known to be logged into that machine. output line has fields for the name of the user, the name of the machine, the user's terminal line, the time the user logged in, and the amount of time the user has been idle. Idle time is shown as: If a user has not typed to the system for a minute or more, reports this as idle time. If a user has not typed to the system for an hour or more, the user is omitted from output unless the flag is given. An example output line from would look similar to: This output line could be interpreted as is logged into and his terminal line is has been logged on since September 12 at 13:28 (1:28 p.m.). has not typed anything into for 11 minutes. WARNINGS
output becomes unwieldy when the number of users for each machine on the local network running becomes large. One line of output occurs for each user on each machine on the local network that is running AUTHOR
was developed by the University of California, Berkeley. FILES
Information about other machines. SEE ALSO
ruptime(1), rusers(1), rwhod(1M). rwho(1)
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