4. Record metrics from a remote system

  1. Setup instructions for client systems

    • Install required packages:

    # dnf -y install pcp
    • Allow incoming connections on TCP/44321:

    # firewall-cmd --permanent --zone=public --add-port=44321/tcp
    # firewall-cmd --reload
    • Ensure that PMCD talks to the outer world:

    #  if grep -q ^PMCD_LOCAL /etc/sysconfig/pmcd; then
          sed -ie 's,PMCD_LOCAL.*,PMCD_LOCAL=0,' /etc/sysconfig/pmcd
          echo 'PMCD_LOCAL=0' >>/etc/sysconfig/pmcd
    # grep ^PMCD_LOCAL /etc/sysconfig/pmcd
    • Restart & activate PMCD:

    # systemctl restart pmcd
    # systemctl enable pmcd
  2. Setup instructions for collector system

    • Install required packages:

    # dnf -y install pcp-zeroconf
    • Create a default config for the clients:

    # CLIENT='rhel7u8a'
    # pmlogconf /var/lib/pcp/config/pmlogger/config.$CLIENT
    • Optionally: execute again, to customize:

    # pmlogconf /var/lib/pcp/config/pmlogger/config.$CLIENT
    • Create the controller config for the client:

    # echo "$CLIENT.local n n PCP_ARCHIVE_DIR/$CLIENT.local" " -r -T30d -c config.$CLIENT" \
    • Restart pmlogger:

    # systemctl restart pmlogger
  3. Verify data collection on collector system

    # pcp
    Performance Co-Pilot configuration on rhel8u2a.local:
    platform: Linux rhel8u2a.local 4.18.0-167.el8.x86_64 #1 SMP Sun [..] 2019 x86_64
    hardware: 4 cpus, 1 disk, 1 node, 3938MB RAM
    timezone: CET-1
    services: pmcd
    pmcd: Version 5.0.2-1, 11 agents, 4 clients
    pmda: root pmcd proc pmproxy xfs linux nfsclient mmv kvm jbd2 dm
    pmlogger: primary logger: /var/log/pcp/pmlogger/rhel8u2a.local/20200317.05.32
    rhel7u8a: /var/log/pcp/pmlogger/rhel7u8a.local/20200317.06.20
    pmie: primary engine: /var/log/pcp/pmie/rhel8u2a.local/pmie.log