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Full Discussion: Process to use open files
Operating Systems Linux Red Hat Process to use open files Post 302965372 by MadeInGermany on Thursday 28th of January 2016 01:39:11 AM
Old 01-28-2016
Do you trink that one process can steal file descriptors from another process??
It cannot. Each process has its own 1024 (or 2048 if set with ulimit) descriptors.
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filebyproc.d(1m)						   USER COMMANDS						  filebyproc.d(1m)

NAME
filebyproc.d - snoop opens by process name. Uses DTrace. SYNOPSIS
filebyproc.d DESCRIPTION
filebyproc.d is a DTrace OneLiner to print file pathnames as they are opened, including the name of the process calling the open. A line will be printed regardless of whether the open is actually successful or not. This is useful to learn which files applications are attempting to open, such as config files, database files, log files, etc. Docs/oneliners.txt and Docs/Examples/oneliners_examples.txt in the DTraceToolkit contain this as a oneliner that can be cut-n-paste to run. Since this uses DTrace, only users with root privileges can run this command. EXAMPLES
This prints new process name and pathnames until Ctrl-C is hit. # filebyproc.d FIELDS
CPU The CPU that recieved the event ID A DTrace probe ID for the event FUNCTION:NAME The DTrace probe name for the event remaining fields The first is the name of the process, the second is the file pathname. DOCUMENTATION
See the DTraceToolkit for further documentation under the Docs directory. The DTraceToolkit docs may include full worked examples with ver- bose descriptions explaining the output. EXIT
filebyproc.d will run forever until Ctrl-C is hit. AUTHOR
Brendan Gregg [Sydney, Australia] SEE ALSO
opensnoop(1M), dtrace(1M), truss(1) version 1.00 May 15, 2005 filebyproc.d(1m)
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