7.7. Loading Capacity Data from a File


The Administration Console uses the same Admin Stats library used by the oo-stats command to collect capacity data. Record the YAML or JSON output from the oo-stats command and use the output directly instead of the actual system data using the following procedure:

Procedure 7.1. To Load Capacity Data from a File:

  1. Run the following command to gather capacity data on a broker host, which then records the output to a file. Replace yaml with json, if needed:
    # oo-stats -f yaml > /tmp/stats.yamloo-stats -f yaml > /tmp/stats.yamloo-stats -f yaml > /tmp/stats.yamloo-stats -f yaml > /tmp/stats.yaml
    Copy to Clipboard Toggle word wrap
  2. Copy /tmp/stats.yaml to the host running the Administration Console, if needed.
  3. Set /tmp/stats.yaml in the STATS_FROM_FILE parameter in the /etc/openshift/plugins.d/openshift-origin-admin-console.conf file.
  4. SELinux limits what the broker application can read (for example, it cannot ordinarily read /tmp entries). To ensure that the broker can read the data file, adjust its context as follows:
    # chcon system_u:object_r:httpd_sys_content_t:s0 /tmp/stats.yamlchcon system_u:object_r:httpd_sys_content_t:s0 /tmp/stats.yaml
    Copy to Clipboard Toggle word wrap
  5. Restart the broker:
    # service openshift-broker restart
    Copy to Clipboard Toggle word wrap
The Administration Console will now use the loaded file for capacity views and suggestions, although navigation still only works for entities actually present.
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