#### 27.12.21.7 The tls\_channel\_status Table

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 Connection interface TLS properties are set at server startup, and can be updated at runtime using the [`ALTER INSTANCE RELOAD TLS`](alter-instance.html#alter-instance-reload-tls) statement. See [Server-Side Runtime Configuration and Monitoring for Encrypted Connections](using-encrypted-connections.html#using-encrypted-connections-server-side-runtime-configuration).

 The [`tls_channel_status`](performance-schema-tls-channel-status-table.html) table (available as of MySQL 8.0.21) provides information about connection interface TLS properties:

```
mysql> SELECT * FROM performance_schema.tls_channel_status\G
*************************** 1. row ***************************
 CHANNEL: mysql_main
PROPERTY: Enabled
   VALUE: Yes
*************************** 2. row ***************************
 CHANNEL: mysql_main
PROPERTY: ssl_accept_renegotiates
   VALUE: 0
*************************** 3. row ***************************
 CHANNEL: mysql_main
PROPERTY: Ssl_accepts
   VALUE: 2
...
*************************** 29. row ***************************
 CHANNEL: mysql_admin
PROPERTY: Enabled
   VALUE: No
*************************** 30. row ***************************
 CHANNEL: mysql_admin
PROPERTY: ssl_accept_renegotiates
   VALUE: 0
*************************** 31. row ***************************
 CHANNEL: mysql_admin
PROPERTY: Ssl_accepts
   VALUE: 0
...
```

 The [`tls_channel_status`](performance-schema-tls-channel-status-table.html) table has these columns:

* `CHANNEL`

   The name of the connection interface to which the TLS property row applies. `mysql_main` and `mysql_admin` are the channel names for the main and administrative connection interfaces, respectively. For information about the different interfaces, see [Section 5.1.12.1, “Connection Interfaces”](connection-interfaces.html).

* `PROPERTY`

   The TLS property name. The row for the `Enabled` property indicates overall interface status, where the interface and its status are named in the `CHANNEL` and `VALUE` columns, respectively. Other property names indicate particular TLS properties. These often correspond to the names of TLS-related status variables.

* `VALUE`

   The TLS property value.

 The properties exposed by this table are not fixed and depend on the instrumentation implemented by each channel.

 For each channel, the row with a `PROPERTY` value of `Enabled` indicates whether the channel supports encrypted connections, and other channel rows indicate TLS context properties:

* For `mysql_main`, the `Enabled` property is `yes` or `no` to indicate whether the main interface supports encrypted connections. Other channel rows display TLS context properties for the main interface.

   For the main interface, similar status information can be obtained using these statements:

  ```
  SHOW GLOBAL STATUS LIKE 'current_tls%';
  SHOW GLOBAL STATUS LIKE 'ssl%';
  ```

* For `mysql_admin`, the `Enabled` property is `no` if the administrative interface is not enabled or it is enabled but does not support encrypted connections. `Enabled` is `yes` if the interface is enabled and supports encrypted connections.

   When `Enabled` is `yes`, the other `mysql_admin` rows indicate channel properties for the administrative interface TLS context only if some nondefault TLS parameter value is configured for that interface. (This is the case if any `admin_tls_*`xxx`*` or `admin_ssl_*`xxx`*` system variable is set to a value different from its default.) Otherwise, the administrative interface uses the same TLS context as the main interface.

 The [`tls_channel_status`](performance-schema-tls-channel-status-table.html) table has no indexes.

[`TRUNCATE TABLE`](truncate-table.html) is not permitted for the [`tls_channel_status`](performance-schema-tls-channel-status-table.html) table.

