Apache Kafka Schema Registry Metrics

The Kafka Schema Registry metrics contain 3 categories of metrics collected directly from the Kafka Schema Registry server. Following are the metrics available:

Global metrics

• • Active TCP connections
  • Total number of active TCP connections.
  • TCP Connections opened
  • The average rate per second of opened TCP connections.
  • TCP Connections closed
  • The average rate per second of closed TCP connections.
  • Master Slave Role

The current role of this Schema Registry instance. A value of 1 indicates this instance is the primary, 0 indicates it is a secondary.

Request Metrics

• • Incoming Requests
  • Bytes/second of incoming requests
  • Requests resulted with Error
  • The average number of requests per second that resulted in HTTP error responses
  • Average Request Latency
  • The average request latency in ms
  • Max Request Latency
  • The maximum request latency in ms
  • HTTP Request Rate
  • The average number of HTTP requests per second.
  • Average Request Size
  • The average request size in bytes
  • Maximum Request Size
  • The maximum request size in bytes

Response Metrics

• • Outgoing responses
  • Bytes/second of outgoing requests
  • Average HTTP responses
  • The average number of HTTP responses per second.
  • Average Response Size
  • The average response size in bytes
  • Maximum Response Size

The maximum response size is in bytes.