CA APM Cluster is unstable. Seeing message: "TransactionTrace arrival buffer full, discarding trace(s)."

Products

• CA Application Performance Management Agent (APM / Wily / Introscope)
• INTROSCOPE

Issue/Introduction

  CA APM Collectors starts to slow down after few hours.

IntroscopeEnterpriseManager Log contains many of the following informational messages:

[INFO] [PO:WatchedAgentPO Mailman ##] [Manager] TransactionTrace arrival buffer full, discarding trace(s)

 

 

 

Environment

CA APM 10.0CA APM 10.1CA APM 10.2CA APM 10.3

Cause

  CA APM Team Center uses Transaction trace data as the source for the Team Center Map by default. This causes the MOM to retrieve the Transaction Traces Data from Agents, occasionally which slows down the Collectors. However, the data source can be switched to use the Triage map data using the property in IntroscopeEnterpriseManager.properties:


introscope.apm.appmap.legacy.data.source =

When set to false (default), appmap data derived from transaction traces will be used

When set to true, legacy appmap data sent by the agents will be used

 

Resolution

 

Set the below property to true on the MOM and Collectors IntroscopeEnterpriseManager.properties and restart the APM Cluster.

 

introscope.apm.appmap.legacy.data.source=true

 

 

Additional Information

Switching Data Source

Addressing "arrival buffer full error"

APM Team Center Map - Frontends & Backends