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Definition for v_monitor.cpu_usage

Hi,
We extract a number of dc performance tables to a monitoring Vertica database, each of our clusters has its own schema and use Grafana as a dashboard.
In the past we have copied some of the v_monitor views to select from our history tables, but I can't remember where the DDL for the original definitions are stored.

Particularly looking at the query used by v_monitor.CPU_USAGE, does anyone have a copy or remember where they are kept?

We just copy the original view and point it our history schema.

Regards
Tim

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Best Answer

  • SruthiASruthiA Employee
    Answer ✓

    @Tim_1 Please run the below query so that you can get the view definition for cpu_usage.

    select * from vs_system_views where view_name ilike 'cpu_usage';
    view_schema | view_name | view_description | query_string
    -------------+-----------+-------------------+----------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------
    v_monitor | cpu_usage | CPU usage history | create view "v_monitor"."cpu_usage" as SELECT
    node_name,
    round(start_time, 'MI') as start_time,
    round(end_time, 'MI') as end_time,
    round(100 -
    ((idle_microseconds_end_value - idle_microseconds_start_value)::float /
    (user_microseconds_end_value + nice_microseconds_end_value + system_microseconds_end_value
    + idle_microseconds_end_value + io_wait_microseconds_end_value + irq_microseconds_end_value
    + soft_irq_microseconds_end_value + steal_microseconds_end_value + guest_microseconds_end_value
    - user_microseconds_start_value - nice_microseconds_start_value - system_microseconds_start_value
    - idle_microseconds_start_value - io_wait_microseconds_start_value - irq_microseconds_start_value
    - soft_irq_microseconds_start_value - steal_microseconds_start_value - guest_microseconds_start_value)
    ) * 100, 2.0) average_cpu_usage_percent
    FROM v_internal.dc_cpu_aggregate_by_minute
    ;

    (1 row)

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