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NAME | SYNOPSIS | DESCRIPTION | INSTALLATION | FILES | PCP ENVIRONMENT | SEE ALSO | COLOPHON |
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PMDALUSTERCOMM(1) General Commands Manual PMDALUSTERCOMM(1)
pmdalustrecomm - Lustre filesystem comms performance metrics
domain agent (PMDA)
$PCP_PMDAS_DIR/lustrecomm/pmdalustrecomm [-d domain] [-l logfile]
[-U username]
pmdalustrecomm is a Performance Metrics Domain Agent (PMDA) which
extracts performance metrics from the Linux procfs filesystem
about the state of various aspects of the Lustre filesystem.
The lustrecomm PMDA exports metrics that focus on distributed
communication in the filesystem, including metrics related to
timeouts, network drops, send/receive information and route
lengths. However, it also covers the memory use of some of the
Lustre filesystem components.
A brief description of the pmdalustrecomm command line options
follows:
-d It is absolutely crucial that the performance metrics domain
number specified here is unique and consistent. That is,
domain should be different for every PMDA on the one host,
and the same domain number should be used for the same PMDA
on all hosts.
-l Location of the log file. By default, a log file named
lustrecomm.log is written in the current directory of
pmcd(1) when pmdalustrecomm is started, i.e.
$PCP_LOG_DIR/pmcd. If the log file cannot be created or is
not writable, output is written to the standard error
instead.
-U User account under which to run the agent. The default is
the unprivileged "pcp" account in current versions of PCP,
but in older versions the superuser account ("root") was
used by default.
If you want access to the names, help text and values for the
lustrecomm performance metrics, do the following as root:
# cd $PCP_PMDAS_DIR/lustrecomm
# ./Install
If you want to undo the installation, do the following as root:
# cd $PCP_PMDAS_DIR/lustrecomm
# ./Remove
pmdalustrecomm is launched by pmcd(1) and should never be
executed directly. The Install and Remove scripts notify pmcd(1)
when the agent is installed or removed.
$PCP_PMCDCONF_PATH
command line options used to launch pmdalustrecomm
$PCP_PMDAS_DIR/lustrecomm/help
default help text file for the lustrecomm metrics
$PCP_PMDAS_DIR/lustrecomm/Install
installation script for the pmdalustrecomm agent
$PCP_PMDAS_DIR/lustrecomm/Remove
undo installation script for the pmdalustrecomm agent
$PCP_LOG_DIR/pmcd/lustrecomm.log
default log file for error messages and other information
from pmdalustrecomm
Environment variables with the prefix PCP_ are used to
parameterize the file and directory names used by PCP. On each
installation, the file /etc/pcp.conf contains the local values
for these variables. The $PCP_CONF variable may be used to
specify an alternative configuration file, as described in
pcp.conf(5).
PCPIntro(1), pmcd(1), pcp.conf(5) and pcp.env(5).
This page is part of the PCP (Performance Co-Pilot) project.
Information about the project can be found at
⟨http://www.pcp.io/⟩. If you have a bug report for this manual
page, send it to pcp@groups.io. This page was obtained from the
project's upstream Git repository
⟨https://github.com/performancecopilot/pcp.git⟩ on 2024-06-14.
(At that time, the date of the most recent commit that was found
in the repository was 2024-06-14.) If you discover any rendering
problems in this HTML version of the page, or you believe there
is a better or more up-to-date source for the page, or you have
corrections or improvements to the information in this COLOPHON
(which is not part of the original manual page), send a mail to
man-pages@man7.org
Performance Co-Pilot PCP PMDALUSTERCOMM(1)
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HTML rendering created 2024-06-26 by Michael Kerrisk, author of The Linux Programming Interface. For details of in-depth Linux/UNIX system programming training courses that I teach, look here. Hosting by jambit GmbH. |
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