15.10 - Miscellaneous Housekeeping Columns - Teradata Database

Teradata Database Resource Usage Macros and Tables
Product
Teradata Database
Release Number
15.10
Published
April 2016
Language
English (United States)
Last Update
2018-05-17
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These columns provide the general characteristics of the housekeeping columns.

Column Name Mode Description Data Type
GmtTime n/a Greenwich Mean Time is not affected by the Daylight Savings Time adjustments that occur twice a year. FLOAT
VprId n/a Identifies the AMP vproc.

In Summary Mode, the value of the AMP vproc ID is -1.

 INTEGER
NodeType n/a Type of node, representing the per node system family type. CHAR(8)
Secs n/a Actual number of seconds in the log period represented by this row. Normally the same as NominalSecs, but can be different in three cases:
  • The first interval after a log rate change
  • A sample logged late because of load on the system
  • System clock adjustments affect reported Secs

Useful for normalizing the count statistics contained in this row, for example, to a per-second measurement.

 SMALLINT
CentiSecs n/a Number of centiseconds in the logging period. This column is useful when performing data calculations with small elapsed times where the difference between centisecond-based data and whole seconds results in a percentage error. INTEGER
NominalSecs n/a Specified or nominal number of seconds in the logging period. SMALLINT
SummaryFlag n/a Summarization status of this row. If the value is 'N,' the row is a non-summary row. If the value is 'S,' the row is a summary row. CHAR(1)
Active max Controls whether or not the rows will be logged to the resource usage tables if Active Row Filter Mode is enabled.

If Active is set to a non-zero value, the row contains data columns.

If Active is set to a zero value, none of the data columns in the row have been updated during the logging period.

For example, if you enable Active Row Filter Mode, the rows that have a zero Active column value will not be logged to the resource usage tables.

 FLOAT
TheTimestamp n/a Number of seconds since midnight, January 1, 1970.

This column is useful for aligning data with the DBQL log.

 BIGINT
PM_CPU_COD n/a Platform Metering CPU COD value in one tenths of a percent. For example, a value of 500 represents a PM CPU COD value of 50.0%.

The value is set to 1000 if the PM CPU COD is disabled.

 SMALLINT
WM_CPU_COD n/a Workload Management CPU COD value in one tenths of a percent. For example, a value of 500 represents a WM CPU COD value of 50.0%.

The value is set to 1000 if the WM CPU COD is disabled.

WM CPU COD is not supported on SLES 10. Its value is set to 1000 on SLES 10.
 SMALLINT
PM_IO_COD n/a Platform Metering I/O COD value in whole percent. For example, a value of 50 represents a PM I/O COD value of 50.0%.

The value is set to 100 if the PM I/O COD is disabled.

 SMALLINT
WM_IO_COD n/a Workload Management I/O COD value in whole percent. For example, a value of 50 represents a WM I/O COD value of 50.0%.

The value is set to 100 if the WM I/O COD is disabled.

WM I/O COD is not supported on SLES 10. Its value is set to 100 on SLES 10.
 SMALLINT