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Top Forums UNIX for Beginners Questions & Answers Cannot kill many processes whose ppid is 1 Post 303045881 by alexcol on Thursday 16th of April 2020 09:14:23 PM
Old 04-16-2020
Cannot kill many processes whose ppid is 1

Good evening please

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


Code:
ps -fu xpinvoice| grep launch_web|wc -l
    3086

Code:
bash-3.2$ ps -fea | grep launch_web
xpinvoice 56525     1   0 15:00:29 ?           0:00 sh //produccion/explotacion/xpinvoice/facturacion/ksh/launch_web.ksh -u/ -l3 -eFG
xpinvoice 68873     1   0 12:08:37 ?           0:00 sh //produccion/explotacion/xpinvoice/facturacion/ksh/launch_web.ksh -u/ -l3 -eFG
xpinvoice 15141     1   0 14:36:50 ?           0:00 sh //produccion/explotacion/xpinvoice/facturacion/ksh/launch_web.ksh -u/ -l3 -eFG
xpinvoice  6962     1   0 12:10:16 ?           0:00 sh //produccion/explotacion/xpinvoice/facturacion/ksh/launch_web.ksh -u/ -l3 -eFG
xpinvoice 69284     1   0 16:31:45 ?           0:00 sh //produccion/explotacion/xpinvoice/facturacion/ksh/launch_web.ksh -u/ -l3 -eFG
xpinvoice 37469     1   0 15:25:49 ?           0:00 sh //produccion/explotacion/xpinvoice/facturacion/ksh/launch_web.ksh -u/ -l3 -eFG
xpinvoice 48415     1   0 12:33:02 ?           0:00 sh //produccion/explotacion/xpinvoice/facturacion/ksh/launch_web.ksh -u/ -l3 -eFG
xpinvoice 47245     1   0 12:18:31 ?           0:00 sh //produccion/explotacion/xpinvoice/facturacion/ksh/launch_web.ksh -u/ -l3 -eFG
xpinvoice 62592     1   0 12:07:21 ?           0:00 sh //produccion/explotacion/xpinvoice/facturacion/ksh/launch_web.ksh -u/ -l3 -eFG
xpinvoice 66140     1   0 16:46:16 ?           0:00 sh //produccion/explotacion/xpinvoice/facturacion/ksh/launch_web.ksh -u/ -l3 -eFG
xpinvoice 15841     1   0 15:50:22 ?           0:00 sh //produccion/explotacion/xpinvoice/facturacion/ksh/launch_web.ksh -u/ -l3 -eFG
xpinvoice 11251     1   0 14:21:22 ?           0:00 sh //produccion/explotacion/xpinvoice/facturacion/ksh/launch_web.ksh -u/ -l3 -eFG
xpinvoice 26343     1   0 15:08:44 ?           0:00 sh //produccion/explotacion/xpinvoice/facturacion/ksh/launch_web.ksh -u/ -l3 -eFG

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..
 

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PKILL(1)						    BSD General Commands Manual 						  PKILL(1)

NAME
pgrep, pkill -- find or signal processes by name SYNOPSIS
pgrep [-Lafilnoqvx] [-F pidfile] [-G gid] [-P ppid] [-U uid] [-d delim] [-g pgrp] [-t tty] [-u euid] pattern ... pkill [-signal] [-ILafilnovx] [-F pidfile] [-G gid] [-P ppid] [-U uid] [-g pgrp] [-t tty] [-u euid] pattern ... DESCRIPTION
The pgrep command searches the process table on the running system and prints the process IDs of all processes that match the criteria given on the command line. The pkill command searches the process table on the running system and signals all processes that match the criteria given on the command line. The following options are available: -F pidfile Restrict matches to a process whose PID is stored in the pidfile file. -G gid Restrict matches to processes with a real group ID in the comma-separated list gid. -I Request confirmation before attempting to signal each process. -L The pidfile file given for the -F option must be locked with the flock(2) syscall or created with pidfile(3). -P ppid Restrict matches to processes with a parent process ID in the comma-separated list ppid. -U uid Restrict matches to processes with a real user ID in the comma-separated list uid. -d delim Specify a delimiter to be printed between each process ID. The default is a newline. This option can only be used with the pgrep command. -a Include process ancestors in the match list. By default, the current pgrep or pkill process and all of its ancestors are excluded (unless -v is used). -f Match against full argument lists. The default is to match against process names. -g pgrp Restrict matches to processes with a process group ID in the comma-separated list pgrp. The value zero is taken to mean the process group ID of the running pgrep or pkill command. -i Ignore case distinctions in both the process table and the supplied pattern. -l Long output. For pgrep, print the process name in addition to the process ID for each matching process. If used in conjunction with -f, print the process ID and the full argument list for each matching process. For pkill, display the kill command used for each process killed. -n Select only the newest (most recently started) of the matching processes. -o Select only the oldest (least recently started) of the matching processes. -q Do not write anything to standard output. -t tty Restrict matches to processes associated with a terminal in the comma-separated list tty. Terminal names may be of the form ttyxx or the shortened form xx. A single dash ('-') matches processes not associated with a terminal. -u euid Restrict matches to processes with an effective user ID in the comma-separated list euid. -v Reverse the sense of the matching; display processes that do not match the given criteria. -x Require an exact match of the process name, or argument list if -f is given. The default is to match any substring. -signal A non-negative decimal number or symbolic signal name specifying the signal to be sent instead of the default TERM. This option is valid only when given as the first argument to pkill. If any pattern operands are specified, they are used as regular expressions to match the command name or full argument list of each process. Note that a running pgrep or pkill process will never consider itself as a potential match. EXIT STATUS
The pgrep and pkill utilities return one of the following values upon exit: 0 One or more processes were matched. 1 No processes were matched. 2 Invalid options were specified on the command line. 3 An internal error occurred. SEE ALSO
kill(1), killall(1), ps(1), flock(2), kill(2), sigaction(2), pidfile(3), re_format(7) HISTORY
The pkill and pgrep utilities first appeared in NetBSD 1.6. They are modelled after utilities of the same name that appeared in Sun Solaris 7. They made their first appearance in FreeBSD 5.3. AUTHORS
Andrew Doran <ad@NetBSD.org> BSD
February 11, 2010 BSD

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