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  v$qmon_server_stats tips

Oracle Database Tips by Donald BurlesonApril 14, 2015

Question:  What does the v$qmon_server_stats view do?
 
Answer: The v$qmon_server_stats view display statistics on all active queue monitor server processes.  Oracle notes that this view contains one row for each server process.  All rows in this view are created and destroyed when the instanced is bounced.  Also see:

The Oracle docs note these columns in the v$qmon_server_stats view:

Column

Description

QMNC_PID

Process ID of the Queue Monitor Coordinator for this server

SERVER_PID

Process ID of the server

SERVER_NAME

Name of the server

STATUS

Current state of the server:

  • UNUSED
  • RUNNING
  • IDLE WAIT
  • EXITING
  • NOT ACTIVE

SERVER_START_TIME

Start time of the server

TASK_NAME

Current executing task

TASK_NUMBER

Unique task number of the running task

TASK_START_TIME

Start time of the running task

LAST_WAIT_TIME

Time when the server last waited

MAX_LATENCY

Maximum task latency for this server (in seconds)

MIN_LATENCY

Minimum task latency for this server (in seconds)

TOTAL_LATENCY

Cumulative task latency for this server (in seconds)

NUM_TASKS

Number of tasks processed by the server

LAST_FAILURE

Last failure encountered by the server

LAST_FAILURE_TIME

Last failure time

LAST_FAILURE_TASK

Task being run at the time of the last failure



   
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