asked on

How to keep my process running when connection is lost?

Hi

I login to the AIX server using Exceed HostExplorer. I have root access but no access to the physical machine.

Today I lost the connection while doing a long time restore. How do I know if the restore process is still running or not? How can I keep the process running when losing the connection? Thanks.

Another un-related question. We have performance problem on the server. How can I convince the admin that the server is overload, not our application issue? Please give some commands to list some data, thanks.

Jirong

ASKER CERTIFIED SOLUTION

sjm_ee

membership

This solution is only available to members.

To access this solution, you must be a member of Experts Exchange.

Start Free Trial

SOLUTION

gheist

membership

This solution is only available to members.

To access this solution, you must be a member of Experts Exchange.

Start Free Trial

hujirong

ASKER

Here is the data. I don't really know how to read this. Thanks.

/home/jihu $ uptime
09:23AM up 2 days, 6:42, 2 users, load average: 0.04, 0.12, 0.14
/home/jihu $ vmstat 15
System Configuration: lcpu=2 mem=4096MB
kthr memory page faults cpu
----- ----------- ------------------------ ------------ -----------
r b avm fre re pi po fr sr cy in sy cs us sy id wa
1 1 263598 535790 0 0 0 23 60 0 432 5651 628 2 2 94 2
0 0 263580 535808 0 0 0 0 0 0 283 481 243 0 0 99 0
0 0 263580 535808 0 0 0 0 0 0 284 282 246 0 0 99 0
2 0 263581 535787 0 0 0 0 0 0 291 791 270 1 0 98 1
1 0 263581 535787 0 0 0 0 0 0 289 669 250 0 3 97 0
1 0 271209 527765 0 0 0 0 0 0 455 75446 559 3 6 89 1
^C/home/jihu $ oslevel -r
5200-03
/home/jihu $

gheist

uptime says taht another process waited .04 of time for another to free processor - all os fine
wa is 2% at maxmum - it is fine
id is 90+% - at disposal of your app - it is fine
no swapping, lots of free RAM - everything seems bright.

Admin can upgrade, but all after all it seems more like application program , sorry for disapointment.
http://www-912.ibm.com/eserver/support/fixes/maintpkg.jsp?system=2&release=52

Is your application something you wrote, something off the shelf (name it then) or something written by someone unknown to world ???

hujirong

ASKER

Thanks a lot for your help.

The application is IBM Rational ClearCase. We are still OK, but I have to monitor its performance. I am glad to hear that the server is in a quite good condition, for we have many new users joined recently.

Jirong

gheist

Suggestion for your admin - disable Nagle's algorithm fo network adapters:
ifconfig en0 tcp_nodelay 1
ifconfig lo0 tcp_nodelay 1

Problem can be extra traffic, no problem if you do not use 9600bps lines.
It fixes apps that do not disable that on sockets, and makes at least one database system very speedy.

gheist

No comment has been added to this question in more than 21 days, so it is now classified as abandoned.
I will leave the following recommendation for this question in the Cleanup topic area:

Split between sjm_ee http:#16240731 and gheist http:#16252884

Any objections should be posted here in the next 4 days. After that time, the question will be closed.

gheist
EE Cleanup Volunteer