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NAME | SYNOPSIS | DESCRIPTION | INSTALLATION | FILES | PCP ENVIRONMENT | SEE ALSO | COLOPHON |
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/recv 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@oss.sgi.com. This page was obtained from the project's upstream
Git repository ⟨git://git.pcp.io/pcp⟩ on 2017-07-05. 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)