01-01-2015
When you run "ulimit" from the command line, you're normally running a shell built-in, and thus showing or changing the limits of the running shell.
When you run "ulimit" under truss, you're running a separate process - usually "/usr/bin/ulimit" - but your PATH envval can change that - and you're displaying or modifying the limits of the subprocess. Those changes are lost when the subprocess exits.
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Hi,
We keep getting hanging Oracle process for our ETL. The dba's asked me to do o truss. All I see is pages and pages of the following,:cool:
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Hi
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Code
set -x
STATUS="0"
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hi, anyone can help on this piece of truss output?
8094: 0.7028 write(4, 0x0043BE90, 236) = 236
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LEARN ABOUT DEBIAN
initscript
INITSCRIPT(5) Linux System Administrator's Manual INITSCRIPT(5)
NAME
initscript - script that executes inittab commands.
SYNOPSIS
/bin/sh /etc/initscript id runlevels action process
DESCRIPTION
When the shell script /etc/initscript is present, init will use it to execute the commands from inittab. This script can be used to set
things like ulimit and umask default values for every process.
EXAMPLES
This is a sample initscript, which might be installed on your system as /etc/initscript.sample.
#
# initscript Executed by init(8) for every program it
# wants to spawn like this:
#
# /bin/sh /etc/initscript <id> <level> <action> <process>
#
# Set umask to safe level, and enable core dumps.
umask 022
ulimit -c 2097151
PATH=/bin:/sbin:/usr/bin:/usr/sbin
export PATH
# Increase the hard file descriptor limit for all processes
# to 8192. The soft limit is still 1024, but any unprivileged
# process can increase its soft limit up to the hard limit
# with "ulimit -Sn xxx" (needs a 2.2.13 or later Linux kernel).
ulimit -Hn 8192
# Execute the program.
eval exec "$4"
NOTES
This script is not meant as startup script for daemons or somesuch. It has nothing to do with a rc.local style script. It's just a handler
for things executed from /etc/inittab. Experimenting with this can make your system un(re)bootable.
FILES
/etc/inittab, /etc/initscript.
AUTHOR
Miquel van Smoorenburg ,<miquels@cistron.nl>
SEE ALSO
init(8), inittab(5).
July 10, 2003 INITSCRIPT(5)