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= |
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