Module mz_storage::healthcheck

Healthcheck common

Structs

• DefaultWriter
  A default HealthOperator for use in normal cases.
• HealthState 🔒
• HealthStatusMessage
  A health message consumed by the health_operator.
• PerWorkerHealthStatus 🔒

Enums

• HealthStatusUpdate
  NB: we derive Ord here, so the enum order matters. Generally, statuses later in the list take precedence over earlier ones: so if one worker is stalled, we’ll consider the entire source to be stalled.
• OverallStatus
• StatusNamespace
  The namespace of the update. The Ord impl matter here, later variants are displayed over earlier ones.

Constants

• SUSPEND_AND_RESTART_DELAY 🔒
  How long to wait before initiating a SuspendAndRestart command, to prevent hot restart loops.

Traits

• HealthOperator
  A trait that lets a user configure the health_operator with custom behavior. This is mostly useful for testing, and the DefaultWriter should be the correct implementation for everyone.

Functions

• health_operator 🔒
  Writes updates that come across health_stream to the collection’s status shards, as identified by their CollectionMetadata.