01-03-2012
Transferring file write operation to another host
I have a process running on two hosts in Active/Standby mode. Process running on active machine is handling the traffic while process running on Standby machine is sitting idle.
We have a debugging mechanism in which logs are generated on local machine. When logging is enabled then process running on Active machine starts creating log files on local machine which leads to high CPU consumption due to expensive file write operation.
What I want is to transfer file write operation to standby machine i.e. when I enable logging then process running on active machine should not do any write operation, instead it should send log info to any process running on another machine which will create log file on standby machine. This way I will be able to save CPU on active machine even when logging is enabled .
Can anyone tell me how to do it ?
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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)