UNIX for Advanced & Expert Users

when i give "ps -elf" or "ps" system gets hung.
if i press "^c" come out from it...


pls help..what should i do to get it resolved.


thanks
CKanth

That sounds strange, can you make sure that the system is not heavily loaded, or try to execute the binary directly from the full path ?
Also, please let us know the output of "ps --info" and "uname -a"

Sounds like there are not enough resources available for the "ps" command to complete.

O/P of ps --info command

Code:

<SERVER /home/kanth>ps --info
ps: ERROR: Illegal option -- -
ps: ERROR: Illegal option -- i
UX:ps: WARNING: -n option ignored
UX:ps: TO FIX: Usage:
        ps [ -eAdalfcjP ] [ -t termlist ]
           [ -u uidlist ] [ -U uidlist ] [ -p proclist ] [ -g grplist ]
           [ -s sidlist ] [ -G grplist ] [ -o format ]

and O/P of uname -a

Code:

SERVER SERVER 4.0 3.0 3516 Pentium IV(TM)-ISA/PCI

this problem get resolved after restarting the srever...

Lot of scripts are being executed through crontab but ps -elf command was used in scirpts which get hung due to this issue...


Any help would be greatly appreciated.

well I think you've answered your own question there. Usually if a reboot works then I would guess it's a resource issue too. If you have lots of scripts that are being executed there could be a memory leak in one of them too.

Might be worth writing a short script that checks the amount of used/available memory the system has every so often and outputting it into a file. Java has a memory printer built into it but that of course would only help your scripts/apps were Java based.