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01-13-2003 10:07 PM
01-13-2003 10:07 PM
System slow
I am facing this pblm in a J5000.One of the user, whose home directory is there in this exported filesystem ,complained that he is not able to login through his X-client program(it is taking about 5-7 minutes for him to login) but he is able to login through telnet,but that also is pretty slow.When checked in the system from which it is exported and found that also is working pretty slow,but swap
usage is only 37%.TOP is showing almost 100% idle.SAR also is showing the same.
Even an ls takes much time.WE have trimmed the history file.We observed that when .kshrc file is removed system is logging in much
faster what all things has to be checked now?.
SY
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01-13-2003 10:18 PM
01-13-2003 10:18 PM
Re: System slow
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01-13-2003 10:19 PM
01-13-2003 10:19 PM
Re: System slow
DNS
lan card definitions
Does the DNS resolve locally first and then a DNS server? Have a look at /etc/nsswitch.conf and /etc/resolv.conf
Does your LAN card run as full or half duplex?
Your lan card will perform poorly at half duples if your network switch is running at full duplex.
# lanadmin -x 0
Is this the only user who is the problem.
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01-13-2003 10:27 PM
01-13-2003 10:27 PM
Re: System slow
could u re-activate this user.
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01-13-2003 10:33 PM
01-13-2003 10:33 PM
Re: System slow
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01-13-2003 10:35 PM
01-13-2003 10:35 PM
Re: System slow
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01-13-2003 10:43 PM
01-13-2003 10:43 PM
Re: System slow
First thing ,the system is slow locally itself ,and in this case .sh_history is in local HDD only.
/etc/nsswitch.conf is having entries
files nis
and there is no /etc/resolv.conf.lanadmin shows the card is full duplex.
thx
Sy
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01-13-2003 10:51 PM
01-13-2003 10:51 PM
Re: System slow
# sar 5 5 (look in the column marked 'avserve', this should show under 20)
Are there any filesystems that are showing as full?
Check /var/adm/syslog/syslog.log file for any errors and notifications
run 'dmesg' as root
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01-14-2003 01:27 AM
01-14-2003 01:27 AM
Re: System slow
# sar 5 5
14:38:33 %usr %sys %wio %idle
14:38:38 0 0 0 99
14:38:43 0 0 0 100
14:38:48 0 0 0 99
14:38:53 0 0 0 99
14:38:58 0 0 0 100
Average 0 0 0 100
syslog also seems to be OK.
I am attaching the sysdef output for u r advices
thx
SY
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01-15-2003 03:55 AM
01-15-2003 03:55 AM
Re: System slow
use sar -d 1 5 to take the metric avserv
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01-15-2003 06:09 AM
01-15-2003 06:09 AM
Re: System slow
Just reading over your post and digesting all of the heavy-hitters bounce these things back and forth and I???m trying to apply this to situations I have been in personally.
You see, I have also had systems that slowed down to miserable levels and I also beat my head against the wall for hours (sometimes days) trying to come up with an answer. Unfortunately, this was when all I knew about Unix was how to search for a file and get to the directory that it was in. After that I had to ask other people what I should do and I didn???t have the benefit of this (or any other) forum at the time.
After running around for extended periods of time and chasing each suggestion to the best of my ability, someone asked me how long the box had been up without being reset. The answer to that was surpassing to us all (gotta love Unix in that respect).
At that point, nobody told me that you shouldn???t have to reboot a Unix box so that was my first response. You know what? It worked beautifully after that for yet another extended period of time. It wasn???t until I had gone through that process several times that someone told me I shouldn???t have to reboot Unix boxes.
Don???t tell anyone, but when all else fails I still will reset one that has been up too long and/or is slowing down beyond tolerable levels.
Oh, yeah. This is supposed to be a forum to help people find answers to problems, not a story post. Sorry.
It???s a shame that my story couldn???t be of assistance to you, but since it involves rebooting a Unix box to solve a problem I guess it won???t be a popular answer.
Thanks for reading anyway.
P.S. How long has it been since your box has been reset, anyway? Just currious???