topic Re: slow Login Issue in Operating System - HP-UX

slow Login Issue

wayne_104 — Wed, 06 Apr 2011 05:28:21 GMT

Hi

I am at my wits end.

I have a rx2600 8 gig ram 2 dual core 1.3 ghz processors.

They are aggregated with 3 gig pipe. (3 x 1 gig nics)

when loging in it takes about 2 seconds. after pressing the enter button.

On my other system with the exact same specs it is almost instantaneous.

Glance of quick system

CPU Util | 1% 2% 2%
Disk Util | 20% 24% 28%
Mem Util |100% 99% 100%
Swap Util | 65% 65% 65%

Glance of slow system

CPU Util | 4% 8% 40%
Disk Util | 11% 30% 100%
Mem Util | 99% 99% 100%
Swap Util | 52% 52% 52%

On the fast system there is more swap activity going on.

On the slow system there is more disk activity.

How can this account for the slow login?

Re: slow Login Issue

Shibin_2 — Wed, 06 Apr 2011 05:51:35 GMT

Did you check, why this disk utilization is high ?

Re: slow Login Issue

wayne_104 — Wed, 06 Apr 2011 06:22:28 GMT

yea we doing a migration of data.

Re: slow Login Issue

Laurent Menase — Wed, 06 Apr 2011 09:02:46 GMT

dns and nsswitch is the same?
are the directory local in the 2 cases or nfs mounted.

Re: slow Login Issue

Mel Burslan — Wed, 06 Apr 2011 13:46:45 GMT

Logging in using what ? Console ? ssh ? telnet (god-forbid) ?

Same type of question was here in the last couple of days. Did you check the sizes of /var/adm/wtmp /var/adm/wtmps /var/adm/btmp /var/adm/btmps.

I bet, on your slow login system, one or more of these files have a considerably larger size, compared to the faster login system.

Re: slow Login Issue

Aungshuman Paul — Thu, 07 Apr 2011 03:49:11 GMT

Hi,

We faced same problem for slow login when use ssh but telnet was ok. Most of the case it was due to nssswitch.conf file problem. Check the file.

Aungshu

Re: slow Login Issue

wayne_104 — Thu, 07 Apr 2011 05:17:03 GMT

hi the nsswitch files are exactly the same.

Re: slow Login Issue

Richard Hepworth — Thu, 07 Apr 2011 06:01:40 GMT

Wayne,

Compare the sizes of /var/adm/wtmps on both systems. If this is large it will delay login. We have to rotate this file everyday on some of our busier systems to ensure it keeps login times down.

regards,

Richard

Re: slow Login Issue

wayne_104 — Thu, 07 Apr 2011 06:08:35 GMT

Hi Mel and richard were on the money. MEl sorry you were supposed to get 10 points as well.Dont know what happned.