COMPACTE command

Summary

Privileges

File Manager

Function

Combine as many page gaps between large objects as possible into contiguous, free Table E pages.

Syntax

COMPACTE FROM nn TO nn EXCL MAXPR nn

Where:

• FROM nn specifies the beginning segment number. The default is 0.

• TO nn specifies the ending segment number. The default is EHIGHPG segment.

• EXCL specifies an enqueue on file in exclusive mode and does not do constraints checking to speed up compaction process. The default is no.

• MAXPR specifies a number of page reads before the command allows a checkpoint and whether the user is being bumped or exceeding limits, such as I/O, CPU slices, or a higher priority user.

Usage

To effectively compact Table E, Rocket Software recommends running a TABLEE command with the SEG option, identifying segments with large number of gaps, running COMPACTE command for segments of interest, and then running another TABLEE command for compacted segments to check the results.

Example

The following is an example of COMPACTE output.

COMPACTE MAXPR 99 FROM 0 TO 10 EXCL *** M204.2811: NUMBER OF MOVED OBJECTS: 18327 *** M204.2812: NUMBER OF MOVED PAGES: 85849 *** M204.2813: NUMBER OF RECORD LOCKING CONFLICTS: 0 *** M204.2814: NUMBER OF MULTISEGMENT OBJECTS: 0