Cisco MCS-7825-H3-IPC1 Service Guide - Page 217

Chapter 5 Cisco Unified Real-Time Monitoring Tool Tracing, PerfMon Counters, and Alerts Performance Monitoring in RTMT Table 5-46 Database Change Notification Client (continued) Counters QueueHeadPointer QueueMax QueueTailPointer TablesSubscribed Counter Descriptions This counter represents the head pointer to the change notification queue. The head pointer acts as the starting point in the change notification queue. To determine the number of notifications in the queue, subtract the head pointer value from the tail pointer value. By default, this counter refreshes every 15 seconds. This counter represents the largest number of change notification messages that will be processed for this client. This counter remains cumulative since the last restart of the Cisco Database Layer Monitor service. This counter represents the tail pointer to the change notification queue. The tail pointer represents the ending point in the change notification queue. To determine the number of notifications in the queue, subtract the head pointer value from the tail pointer value. By default, this counter refreshes every 15 seconds This counter represents the number of tables in which this client has subscribed. Database Change Notification Server The Database Change Notification Server object provides information on different change-notification-related statistics. Table 5-47 contains information on the Database Change Notification Server counters. Table 5-47 Database Change Notification Server Counter Clients Queue Delay QueuedRequestsInDB QueuedRequestsInMemory Counter Descriptions This counter represents the number of change notification clients (services/servlets) that have subscribed for change notification. This counter provides the number of seconds that the change notification process has messages to process but is not processing them. This condition is true if: • Either Change Notification Requests Queued in Database (QueuedRequestsInDB) and Change Notification Requests Queued in Memory (QueuedRequestsInMemory) are non-zero, or • The Latest Change Notification Messages Processed count is not changing. This condition gets checked every 15 seconds. This counter represents the number of change notification records that are in the DBCNQueue (Database Change Notification Queue) table via direct TCP/IP connection (not queued in shared memory). This counter refreshes every 15 seconds. This counter represents the number of change notification requests that are queued in shared memory. OL-22523-01 Cisco Unified Communications Manager Managed Services Guide 5-63