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NAME | DESCRIPTION | INSTALLATION | FILES | PCP ENVIRONMENT | SEE ALSO | COLOPHON |
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PMDALIBVIRT(1) General Commands Manual PMDALIBVIRT(1)
pmdalibvirt - libvirt PMDA
pmdalibvirt is a Performance Metrics Domain Agent (PMDA) which
extracts live performance data from libvirt hypervisor and domains
(VMs).
See the libvirt documentation for detailed description of each
metric.
pmdalibvirt reads an optional ini-style configuration file
· $PCP_PMDAS_DIR/libvirt/libvirt.conf
This file can contain in its [pmda] section overriding values for the
following PMDA options:
· user
· uri
· backing
· oldapi
By default, root, qemu:///system, False, and False are used as values
for these options, respectively.
The backing setting can be used to expand block device information to
cover backing chains with recent libvirt versions.
The old API setting can be used in environments where recent libvirt
API additions are not available (e.g., RHEL 6 / libvirt-0.10.2) to
provide some of the metrics available with the newer API. Regardless
of the API version, no guest agent is needed for the metrics.
Note that using non-root user typically requires also libvirt side
configuration; please refer to libvirt documentation for further
details on this.
Once the needed setup is ready, you can test the connection and
install the PMDA to enable access to the names and values for the
libvirt performance metrics. To install, do the following as root:
# cd $PCP_PMDAS_DIR/libvirt
# ./connect
# ./Install
To uninstall, do the following as root:
# cd $PCP_PMDAS_DIR/libvirt
# ./Remove
pmdalibvirt 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_PMDAS_DIR/libvirt/libvirt.conf
configuration file for the pmdalibvirt agent
$PCP_PMDAS_DIR/libvirt/connect
connection test helper using the pmdalibvirt agent
configuration
$PCP_PMDAS_DIR/libvirt/Install
installation script for the pmdalibvirt agent
$PCP_PMDAS_DIR/libvirt/Remove
undo installation script for the pmdalibvirt agent
$PCP_LOG_DIR/pmcd/libvirt.log
default log file for messages from the pmdalibvirt agent
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), virsh(1) and libvirtd(8).
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
2018-02-02. (At that time, the date of the most recent commit that
was found in the repository was 2018-02-02.) 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 PMDALIBVIRT(1)
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