Querying performance data shown in the GUI through CLI

You can query the performance data that is displayed in the GUI through the CLI. This is usually used for external system integration or to troubleshoot any issues with the performance data displayed in the GUI.

The following example shows how to query the performance data through CLI:

 mmperfmon query "sum(netdev_bytes_r)"

This query displays the following output:

Legend:
 1:     mr-31.localnet.com|Network|eth0|netdev_bytes_r
 2:     mr-31.localnet.com|Network|eth1|netdev_bytes_r
 3:     mr-31.localnet.com|Network|lo|netdev_bytes_r

Row           Timestamp netdev_bytes_r netdev_bytes_r netdev_bytes_r
  1 2016-03-15-14:52:09          10024
  2 2016-03-15-14:52:10           9456
  3 2016-03-15-14:52:11           9456
  4 2016-03-15-14:52:12           9456
  5 2016-03-15-14:52:13           9456
  6 2016-03-15-14:52:14           9456
  7 2016-03-15-14:52:15          27320
  8 2016-03-15-14:52:16           9456
  9 2016-03-15-14:52:17           9456
 10 2016-03-15-14:52:18          11387

The sensor gets the performance data for the collector and the collector passes it to the performance monitoring tool to display it in the CLI and GUI. If sensors and collectors are not enabled in the system, the system does not display the performance data and when you try to query data from a system resource, it returns an error message. For example, if performance monitoring tools are not configured properly for the resource type Transparent Cloud Tiering, the system displays the following output while querying the performance data:

mmperfmon query "sum(mcs_total_requests)" number_buckets 1
Error: No data available for query: 3169

mmperfmon: Command failed. Examine previous error messages to determine cause.