This is the command pmdaroot that can be run in the OnWorks free hosting provider using one of our multiple free online workstations such as Ubuntu Online, Fedora Online, Windows online emulator or MAC OS online emulator
PROGRAM:
NAME
pmdaroot - a privileged PMCD helper performance metrics domain agent
SYNOPSIS
$PCP_PMDAS_DIR/root/pmdaroot [-d domain] [-l logfile] [-s sockname]
DESCRIPTION
pmdaroot is a special Performance Metrics Domain Agent (PMDA) which cooperates closely
with pmcd(1) and other PMDAs to provide limited privileged services to these unprivileged
processes.
In this role it is used to discover operating system containers running on the local host.
It also enables access to performance data from within those containers by other PMDAs
running on the bare-metal host, using the pmdaRootConnect(3) and the associated namespace
interfaces.
Like all other PMDAs, it also exports performance metrics from the domain it controls.
Currently, this is limited to information about the containers on the local system, and
currently only Docker containers can be detected.
-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 root.log is written in the
current directory of pmcd(1) when pmdaroot 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.
-s Location of the unix(7) domain socket for communication with clients seeking
privileged operations. By default, a socket file named $PCP_TMP_DIR/pmcd/root.socket
is used.
INSTALLATION
Access to the names, help text and values for the kernel performance metrics is available
by default - unlike most other agents, no action is required to enable them and they
should not be removed.
Use pmdaroot online using onworks.net services
