[Yandex Cloud documentation](../index.md) > [Yandex Managed Service for Sharded PostgreSQL](index.md) > Audit Trails events

# Yandex Audit Trails event reference


Audit Trails supports tracking [control plane events](../audit-trails/concepts/format.md) and [data plane events](../audit-trails/concepts/format-data-plane.md) for Yandex Managed Service for Sharded PostgreSQL.

The general format of the `event_type` field value is as follows:

```text
yandex.cloud.audit.mdb.spqr.<event_name>
```

You can find the detailed JSON structure of the event record in the audit log reference. The events in it are sorted alphabetically without division into levels and contain all possible fields. In real logs, the field set depends on the parameters of the event and particular object.

## Control plane event reference {#control-plane-events}

Event name | Description
--- | ---
`AddClusterHosts` | Adding new hosts to a cluster
`BackupCluster` | Creating backups
`CreateCluster` | Creating a cluster
`DeleteBackup` | Deleting backups
`DeleteCluster` | Deleting a cluster
`DeleteClusterHosts` | Deleting hosts from a cluster
`MoveCluster` | Moving a cluster
`RescheduleMaintenance` | Changing scheduled maintenance date and time
`RestoreCluster` | Creating a new cluster from a backup
`StartCluster` | Starting a cluster
`StopCluster` | Stopping a cluster
`UpdateCluster` | Updating a cluster
`UpdateClusterHosts` | Editing hosts in a cluster

## Data plane event reference {#data-plane-events}

Event name | Description
--- | ---
`AddClusterShards` | Adding shards to a cluster
`CreateDatabase` | Creating a database
`CreateUser` | Creating a database user
`DeleteClusterShards` | Deleting shards from a cluster
`DeleteDatabase` | Deleting a database
`DeleteUser` | Deleting a database user
`UpdateUser` | Editing a database user