In a production system SunOS we found the same processes witth ppid = 1, so there must be going on with the application and there are more than 3k processes and increasing, for instance
I could not kill those processes, so i escalete up this issue to our sys administrator who says there is no way to kill these processes because they are tied to the kernel, so it is necessary to restart the server, so these question come up:
1 its kind of odd to find the same processes with too many processes with ppid =1 ? so it has something to do with an application failure?
why did our sys admin say these processes are related to the kernel and its necessary to restart the server?
I appreciate your help in advanced?
Last edited by RavinderSingh13; 04-17-2020 at 12:23 AM..
Have you checked logs from those processes (ksh shell scripts)? One cause is when the free memory list becomes exhausted. This can be the result of a device wait. :ike a disk wait that does not get resolved because the disk was physically removed or went offline - like a cdrom for example. I've seen that on older SunOS machines - Solaris 9
Actually i have no evidence since Server was restarted yesterday and in ksh log there is nothing since it updates an oracle table, so when execute this command there is no problem
D is a device wait. I don't remember old SunOS having one, but OK, no problem, the result is the same - device not available or not online, etc. Both "real" and virtual I/O devices can cause this. If it happens again, the sysadmin is going to have to find the problem device first, in order to be able to consider remediation. A wild guess: network issues since this is a web app.
Are there any NFS mounts? That can be a source of interesting effects as well when abused.
This User Gave Thanks to jim mcnamara For This Post:
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