LAG EXTRACT

Use LAG EXTRACT to determine a true lag time between Extract and the data source. LAG EXTRACT calculates the lag time more precisely than INFO EXTRACT because it communicates with Extract directly, rather than reading a checkpoint position in the trail.

For Extract, lag is the difference, in seconds, between the time that a record was processed by Extract (based on the system clock) and the timestamp of that record in the data source.

Syntax

LAG EXTRACT group_name

group_name: The name of an Extract group or a wildcard (*) to specify multiple groups. For example, T* determines lag time for all Extract groups whose names start with T.

Examples

Example 1

LAG EXTRACT *

Example 2

LAG EXTRACT *fin*

Example 3

The following is sample output for LAG EXTRACT.

Sending GETLAG request to EXTRACT CAPTPCC...
Last record lag: 2 seconds.
At EOF, no more records to process.