Topology data includes the following:

  • The server ID of the current primary, if the primary is not known.
  • The instance name of the current primary, or if a primary is not set, a description stating why a primary is not set.
  • A flag indicating if this server thinks that it should be the primary.
  • A flag indicating if this server is the current primary.
  • A flag indicating if this server was forced as primary.
  • The total number of configured peers in the topology group.
  • The peers connected to this server.
  • The current availability of this server
  • A flag indicating whether or not this server is not synchronized with its primary, or another node in the topology if the primary is unknown.
  • The amount of time in milliseconds where multiple primaries were detected by this server.
  • The amount of time in milliseconds where no suitable server is found to act as primary.
  • A SHA-256 digest encoded as a base-64 string for the current subtree contents.
The following metrics are included if this server has processed any operations as primary:
  • The number of operations processed by this server as primary.
  • The number of operations processed by this server as primary that were successful.
  • The number of operations processed by this server as primary that failed to validate.
  • The number of operations processed by this server as primary that failed to apply.
  • The average amount of time taken (in milliseconds) by this server to process operations as the primary.
  • The maximum amount of time taken (in milliseconds) by this server to process an operation as the primary.