Settings View Source ClickHouse.Telemetry (ClickHouse v0.27.2)

ClickHouse produces multiple telemetry events.

events

Events

• [:clickhouse, :init, :start] - Called when a ClickHouse client init starts.

  Measurements

  • :system_time - The current monotonic system time.

  Metadata

  • :client - The name of the client.

• [:clickhouse, :init, :stop] - Called when a ClickHouse client init stops.

  Measurements

  • :duration - The amount of time taken to start the ClickHouse client.

  Metadata

  • :client - The name of the client.

• [:clickhouse, :init, :exception] - Called when a ClickHouse client init has an exception.

  Measurements

  • :duration - The amount of time before the error occurred.

  Metadata

  • :client - The name of the client.
  • :kind - The kind of error raised.
  • :reason - The reason for the error.
  • :stacktrace - The stacktrace of the error.

• [:clickhouse, :prepare, :start] - Called when a ClickHouse query preparation starts.

  Measurements

  • :system_time - The current monotonic system time.

  Metadata

  • :client - The name of the client.

• [:clickhouse, :prepare, :stop] - Called when a ClickHouse query preparation stops.

  Measurements

  • :duration - The amount of time taken to prepare the query.

  Metadata

  • :client - The name of the client.

• [:clickhouse, :prepare, :exception] - Called when a ClickHouse query preparation has an exception.

  Measurements

  • :duration - The amount of time before the error occurred.

  Metadata

  • :client - The name of the client.
  • :kind - The kind of error raised.
  • :reason - The reason for the error.
  • :stacktrace - The stacktrace of the error.

• [:clickhouse, :execute, :start] - Called when a ClickHouse query execution starts.

  Measurements

  • :system_time - The current monotonic system time.

  Metadata

  • :client - The name of the client.

• [:clickhouse, :execute, :stop] - Called when a ClickHouse query execution stops.

  Measurements

  • :duration - The amount of time taken to execute the query.

  Metadata

  • :client - The name of the client.

• [:clickhouse, :execute, :error] - Called when a ClickHouse query execution has an error.

  Metadata

  • :client - The name of the client.
  • :error - The error that occured.

• [:clickhouse, :execute, :exception] - Called when a ClickHouse query execution has an exception.

  Measurements

  • :duration - The amount of time before the error occurred.

  Metadata

  • :client - The name of the client.
  • :kind - The kind of error raised.
  • :reason - The reason for the error.
  • :stacktrace - The stacktrace of the error.