MONITOR ENQ command

Summary

Privileges

System administrator

Function

Monitors the record locking table of an Online system

Syntax

MONITOR ENQ

Usage notes

The table below shows the Model 204 messages and display output of a MONITOR ENQ command at the terminal and in CCAAUDIT.

MONITOR ENQ output

Message	Display information	Meaning
M204.1929:	NUMBER OF USERS=nnn	The number of active users.
M204.1929:	NUMBER OF COMPACTIONS=nnn	The number of compactions of the record locking table.
M204.1930:	CURRENT # BYTES=nnn	The current number of bytes used in the record locking table.
M204.1930:	HWM # BYTES=nnn	The current high water mark for the number of bytes used in the record locking table.
M204.1931:	CURRENT # HEADERS=nnn	The current number of headers used in the record locking table.
M204.1931:	HWM HEADERS=nnn	The current high-water mark for the number of headers used in the record locking table.
M204.1932:	REQUIRED LRETBL= HWM # BYTES / NUSERS	Use as a rule of thumb: The required LRETBL setting for the current system load is equal to the high water mark for the number of bytes, divided by the number of active users. You might require more bytes-for example, if a user runs a table that requires large amounts of record enqueuing space.

Example

MONITOR ENQ AD /// M204.1929: NUMBER OF USERS = 3, NUMBER OF COMPACTIONS = 0 AD /// M204.1930: CURRENT # BYTES = 108, HWM # BYTES = 152 AD /// M204.1931: CURRENT # HEADERS = 3, HWM HEADERS = 3 AD /// M204.1932: REQUIRED LRETBL = 8