Displaying Technical Data for the
PCK
Use
You can display current technical data for several server nodes for the PCK.
Prerequisites
You have called the Message Monitor and have chosen System Status.
Procedure
To display current technical data, proceed as follows:
...
1. Select the required server node.
The system displays node-specific system information. Additional detailed information is displayed on the available tab pages.
2. Select the tab page with the required information.
The following tab pages are available:
Tab Page |
Content |
Backlog |
Selected as the default. For more information, see below the table. This display is not node-specific. |
Messaging |
Displays how many messages are in which status since the last restart of the PCK. You can display the data according to the mode and direction of message processing. The system displays an overview as well as a detailed view for each connection, showing the message status, number, and size, and the last status change. |
Queues |
Displays information about the individual adapter queues for each adapter. |
Message Store |
Displays how many messages are currently in processing. A differentiation is made between synchronous processing (Messages in Memory Cache) and asynchronous processing (Messages in Memory Store). |
Scheduler |
Displays all messages that currently have the status WAIT, including the time at which the messages will be executed again. |
Sequencer |
Displays all EOIO messages that currently have the status HOLD, including the serialization context and sequence number. |
EOIO Sequences |
Displays the EOIO message with status HOLD with their respective predecessor messages. This display is not node-specific. |
Event Handler |
Displays the registered event handler. |
Database Locks |
Displays database locks of messages, including the time of creation and locking user. You can release locked messages by selecting and deleting the corresponding lock entry. This display is not node-specific. |
Technical Settings |
Displays the number of threads for parallel message processing for each queue type and connection. More information:
|
Backlog Tab Page
This tab page shows an overview of all sender and receiver services that are defined for the PCK in the CPA cache.
The number of messages currently still in processing (backlog) is displayed in detail for each service. The number is not node-specific and represents the sum of messages across all nodes.
You can select a service for monitoring by the SAP NetWeaver Administrator. In addition to the selected services, this also always displays the total sum of messages for all services.
For performance reasons, only select particular services for monitoring, not all services.
To make the data
visible in SAP NetWeaver Administrator, proceed as described in
Modifying the State of
a Set of Monitors. In the monitoring tree, select the nodes Server
® Services
® Adapter Framework
® Messaging
System.
To display the monitored services, choose Messaging System ® Receiver Services or Messaging System ® Sender Services.
Four message categories are displayed:
● EOIO Backlog:
Held messages (status HOLD)
● Processing Backlog (with errors):
Waiting messages (status WAIT)
● Processing Backlog (without errors):
Messages to be delivered (status TBDL) and messages that have been delivered (status DLNG)
● Error Backlog:
Messages with system errors (status NDLV)
You can connect the monitor to the SAP Computing Center Management System (CCMS). There, you can define corresponding threshold values to generate alerts for individual backlog categories and services.
More information:
Current Number
of Messages in Processing