Procedure

1. Install the following packages:

   # yum install grafana grafana-pcp

2. Restart and enable the following service:

   # systemctl restart grafana-server
   # systemctl enable grafana-server

Procedure

1. On the client system, open a browser and access the grafana-server on port 3000, using http://192.0.2.0:3000 link.

   Replace 192.0.2.0 with your machine IP.

2. For the first login, enter admin in both the username and password field.

   Figure 7.1. Grafana login page

   
3. To create a secured account, Grafana prompts to set a new password.

4. From the menu, hover over the       configuration icon > click Plugins > in the Filter by name or type, type performance co-pilot > click Performance Co-Pilot plugin and > click Enable to enable the grafana-pcp plugin.

   Figure 7.2. Home Dashboard

   
   Note

   The top corner of the screen has a similar       icon, but it controls the general Dashboard settings.

5. Click the       icon to view the Home Dashboard.

6. In the Home Dashboard, click Add data source to add PCP Redis, PCP bpftrace, and PCP Vector data sources.

   For more information on how to add PCP Redis, PCP bpftrace, and PCP Vector data sources, see:

   • Section 7.4, “Adding PCP Redis as a data source”
   • Section 7.6, “Adding PCP bpftrace as a data source”
   • Section 7.7, “Adding PCP Vector as a data source”.
7. Optional: In the pane, hover on the       icon to change the Preferences or to Sign out.

Procedure

1. Install the redis package:

   # yum install redis

2. Start and enable the following services:

   # systemctl start pmproxy redis
   # systemctl enable pmproxy redis

3. Log into the Grafana web UI. For more information, see Section 7.3, “Accessing the Grafana web UI”.

4. Click the       icon > click Add data source > in the Filter by name or type, type redis > and click PCP Redis > in the URL field, accept the given suggestion http://localhost:44322 and > click Save & Test.

   Figure 7.3. Adding PCP Redis in the data source

   

5. In the pane, hover on the       filter icon > click Manage > in the Filter Dashboard by name, type pcp redis > select PCP Redis Host Overview to see a dashboard with an overview of any useful metrics.

   Figure 7.4. PCP Redis Host Overview

   

6. In the pane, hover on the       icon > click Dashboard option > click Add Query > from the Query list, select the PCP Redis and > in the text field of A, enter metric, for example, kernel.all.load to visualize the kernel load graph.

   Figure 7.5. PCP Redis query

   

Procedure

1. Specify the supported authentication mechanism and the user database path in the pmcd.conf file:

   # vi /etc/sasl2/pmcd.conf
   
   mech_list: scram-sha-256
   
   sasldb_path: /etc/pcp/passwd.db

2. Create a new user:

   # useradd -r metrics

   Replace metrics by your user name.

3. Add the created user in the user database:

   # saslpasswd2 -a pmcd metrics
   
   Password:
   Again (for verification):

4. Set the permissions of the user database:

   # chown root:pcp /etc/pcp/passwd.db
   # chmod 640 /etc/pcp/passwd.db

5. Restart the pmcd service:

   # systemctl restart pmcd

Procedure

1. Install the pcp-pmda-bpftrace package:

   # yum install pcp-pmda-bpftrace

2. Edit the bpftrace.conf file and add your user, which you have created in the Section 7.5, “Setting up authentication between PCP components”:

   # vi /var/lib/pcp/pmdas/bpftrace/bpftrace.conf
   
   [dynamic_scripts]
   enabled = true
   auth_enabled = true
   allowed_users = root,metrics

   Replace metrics by your user name.

3. Install the bpftrace PMDA:

   # cd /var/lib/pcp/pmdas/bpftrace/
   # ./Install
   Updating the Performance Metrics Name Space (PMNS) ...
   Terminate PMDA if already installed ...
   Updating the PMCD control file, and notifying PMCD ...
   Check bpftrace metrics have appeared ... 7 metrics and 6 values

   The pmda-bpftrace is now installed, and can only be used after authenticating your user.

4. Log into the Grafana web UI. For more information, see Section 7.3, “Accessing the Grafana web UI”.

5. Click the       icon > click Add data source > in the Filter by name or type, type bpftrace > and click PCP bpftrace > in the URL field, accept the given suggestion http://localhost:44322.

   Select the Basic Auth option > add the created user credentials in the User and Password field and > click Save & Test.

   Figure 7.6. Adding PCP bpftrace in the data source

   

6. In the pane, hover on the       filter icon > click Manage > in the Filter Dashboard by name, type pcp bpftrace > select PCP bpftrace System Analysis to see a dashboard with an overview of useful metrics.

   Figure 7.7. PCP bpftrace System Analysis

   

Procedure

1. Install the pcp-pmda-bcc package:

   # yum install pcp-pmda-bcc

2. Install the bcc PMDA:

   # cd /var/lib/pcp/pmdas/bcc
   # ./Install
   [Wed Apr  1 00:27:48] pmdabcc(22341) Info: Initializing, currently in 'notready' state.
   [Wed Apr  1 00:27:48] pmdabcc(22341) Info: Enabled modules:
   [Wed Apr  1 00:27:48] pmdabcc(22341) Info: ['biolatency', 'sysfork',
   [...]
   Updating the Performance Metrics Name Space (PMNS) ...
   Terminate PMDA if already installed ...
   Updating the PMCD control file, and notifying PMCD ...
   Check bcc metrics have appeared ... 1 warnings, 1 metrics and 0 values

3. Log into the Grafana web UI. For more information, see Section 7.3, “Accessing the Grafana web UI”.

4. Click the       icon > click Add data source > in the Filter by name or type, type vector > and click PCP Vector > in the URL field, accept the given suggestion http://localhost:44322 and > click Save & Test.

   Figure 7.8. Adding PCP Vector in the data source

   

5. In the pane, hover on the       icon > click Manage > in the Filter Dashboard by name, type pcp vector > select PCP Vector Host Overview to see a dashboard with an overview of useful metrics.

   Figure 7.9. PCP Vector Host Overview