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Absence of Protocol Metrics

If protocol metrics obtained from network requests and responses are missing, it indicates that collectors cannot capture conversations in their entirety.

Long-Running TCP Connections

Epoch collectors need to capture conversations from the beginning of a TCP connection. It cannot reconstruct a conversation from the middle of an already established connection. If your applications exhibit long-running TCP connections, try the following.

  • Reduce timeouts for DB connections so that apps frequently re-establishes connections.
  • Ensure that the collector is running before you start your app.

SSL Connections

If you are encrypting your traffic using SSL, you neet to set up SSLsplit.

Absence of Infrastructure Metrics

If infrastructure metrics exposed by the database (obtained using dd-agent) are missing, you might not have configured the infrastructure integration correctly. Refer the integrations section for details on how to correctly configure this particular integration. Note that protocol metrics (layer4 or layer7) are automatically available without any additional configuration.