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WebSphere DataPower and ITCAM SOA - WSM agent pending records

Troubleshooting


Problem

The command 'show wsm-agent-status' from the DataPower command line shows the current status of the Web Services Management (WSM) buffer. The WSM buffer holds records in preparation for collection by ITCAM SOA. Here is an example of the 'show wsm-agent-status' command: Active Subscribers: 1 Polled Subscribers: 0 Records Seen: 1049 Records Lost: 0 Pending Records: 251 Complete Records: 87 Memory Used: 63 kbytes Complete Records are records ready to be collected. Pending Records are records for which the request, but not the response, has been processed. This same status is available in the DataPower Web GUI and via requests sent over SNMP and the DataPower XML Management interface.

Symptom

A low Pending Record count (less than 50 or 100) may not be a concern, because it simply indicates requests for which responses are still in flight.

A higher count in the Pending Records may indicate a loop hole in the DataPower configuration where responses are not being captured for the WSM processing. A high count indicates that the number of pending records has probably been increasing over time.

If the Pending Record count continues to increase, it eventually approaches the maximum amount of records allowed in the WSM buffer (see Resolving the Problem). When the WSM buffer is full, or nearly full, of pending records, ITCAM SOA data collection stops because there is no room in the buffer for Complete records to be recorded.

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Document Information

Modified date:
22 June 2018

UID

swg21568404