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Diffstat (limited to 'man/man1/pmdalustrecomm.1')
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diff --git a/man/man1/pmdalustrecomm.1 b/man/man1/pmdalustrecomm.1 new file mode 100644 index 0000000..dd5fa85 --- /dev/null +++ b/man/man1/pmdalustrecomm.1 @@ -0,0 +1,141 @@ +'\"macro stdmacro +.\" +.\" Copyright (c) 2014 Red Hat. +.\" +.\" This program is free software; you can redistribute it and/or modify it +.\" under the terms of the GNU General Public License as published by the +.\" Free Software Foundation; either version 2 of the License, or (at your +.\" option) any later version. +.\" +.\" This program is distributed in the hope that it will be useful, but +.\" WITHOUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY +.\" or FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License +.\" for more details. +.\" +.TH PMDALUSTERCOMM 1 "PCP" "Performance Co-Pilot" +.SH NAME +\f3pmdalustrecomm\f1 \- Lustre filesystem comms performance metrics domain agent (PMDA) +.SH SYNOPSIS +\f3$PCP_PMDAS_DIR/lustrecomm/pmdalustrecomm\f1 +[\f3\-d\f1 \f2domain\f1] +[\f3\-l\f1 \f2logfile\f1] +[\f3\-U\f1 \f2username\f1] +.SH DESCRIPTION +.B 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. +.PP +The +.B 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. +.PP +A brief description of the +.B pmdalustrecomm +command line options follows: +.TP 5 +.B \-d +It is absolutely crucial that the performance metrics +.I domain +number specified here is unique and consistent. +That is, +.I domain +should be different for every PMDA on the one host, and the same +.I domain +number should be used for the same PMDA on all hosts. +.TP +.B \-l +Location of the log file. By default, a log file named +.I lustrecomm.log +is written in the current directory of +.BR pmcd (1) +when +.B pmdalustrecomm +is started, i.e. +.BR $PCP_LOG_DIR/pmcd . +If the log file cannot +be created or is not writable, output is written to the standard error instead. +.TP +.B \-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. +.SH INSTALLATION +If you want access to the names, help text and values for the lustrecomm +performance metrics, do the following as root: +.PP +.ft CW +.nf +.in +0.5i +# cd $PCP_PMDAS_DIR/lustrecomm +# ./Install +.in +.fi +.ft 1 +.PP +If you want to undo the installation, do the following as root: +.PP +.ft CW +.nf +.in +0.5i +# cd $PCP_PMDAS_DIR/lustrecomm +# ./Remove +.in +.fi +.ft 1 +.PP +.B pmdalustrecomm +is launched by +.BR pmcd (1) +and should never be executed directly. +The Install and Remove scripts notify +.BR pmcd (1) +when the agent is installed or removed. +.SH FILES +.PD 0 +.TP 10 +.B $PCP_PMCDCONF_PATH +command line options used to launch +.B pmdalustrecomm +.TP 10 +.B $PCP_PMDAS_DIR/lustrecomm/help +default help text file for the lustrecomm metrics +.TP 10 +.B $PCP_PMDAS_DIR/lustrecomm/Install +installation script for the +.B pmdalustrecomm +agent +.TP 10 +.B $PCP_PMDAS_DIR/lustrecomm/Remove +undo installation script for the +.B pmdalustrecomm +agent +.TP 10 +.B $PCP_LOG_DIR/pmcd/lustrecomm.log +default log file for error messages and other information from +.B pmdalustrecomm +.PD +.SH "PCP ENVIRONMENT" +Environment variables with the prefix +.B PCP_ +are used to parameterize the file and directory names +used by PCP. +On each installation, the file +.I /etc/pcp.conf +contains the local values for these variables. +The +.B $PCP_CONF +variable may be used to specify an alternative +configuration file, +as described in +.BR pcp.conf (5). +.SH SEE ALSO +.BR PCPIntro (1), +.BR pmcd (1), +.BR pcp.conf (5) +and +.BR pcp.env (5). |