mirror of
https://github.com/ClickHouse/ClickHouse.git
synced 2024-11-23 16:12:01 +00:00
84 lines
4.6 KiB
Markdown
84 lines
4.6 KiB
Markdown
---
|
|
slug: /en/operations/system-tables/session_log
|
|
---
|
|
# session_log
|
|
|
|
Contains information about all successful and failed login and logout events.
|
|
|
|
Columns:
|
|
|
|
- `hostname` ([LowCardinality(String)](../../sql-reference/data-types/string.md)) — Hostname of the server executing the query.
|
|
- `type` ([Enum8](../../sql-reference/data-types/enum.md)) — Login/logout result. Possible values:
|
|
- `LoginFailure` — Login error.
|
|
- `LoginSuccess` — Successful login.
|
|
- `Logout` — Logout from the system.
|
|
- `auth_id` ([UUID](../../sql-reference/data-types/uuid.md)) — Authentication ID, which is a UUID that is automatically generated each time user logins.
|
|
- `session_id` ([String](../../sql-reference/data-types/string.md)) — Session ID that is passed by client via [HTTP](../../interfaces/http.md) interface.
|
|
- `event_date` ([Date](../../sql-reference/data-types/date.md)) — Login/logout date.
|
|
- `event_time` ([DateTime](../../sql-reference/data-types/datetime.md)) — Login/logout time.
|
|
- `event_time_microseconds` ([DateTime64](../../sql-reference/data-types/datetime64.md)) — Login/logout starting time with microseconds precision.
|
|
- `user` ([String](../../sql-reference/data-types/string.md)) — User name.
|
|
- `auth_type` ([Enum8](../../sql-reference/data-types/enum.md)) — The authentication type. Possible values:
|
|
- `NO_PASSWORD`
|
|
- `PLAINTEXT_PASSWORD`
|
|
- `SHA256_PASSWORD`
|
|
- `DOUBLE_SHA1_PASSWORD`
|
|
- `LDAP`
|
|
- `KERBEROS`
|
|
- `SSL_CERTIFICATE`
|
|
- `profiles` ([Array](../../sql-reference/data-types/array.md)([LowCardinality(String)](../../sql-reference/data-types/lowcardinality.md))) — The list of profiles set for all roles and/or users.
|
|
- `roles` ([Array](../../sql-reference/data-types/array.md)([LowCardinality(String)](../../sql-reference/data-types/lowcardinality.md))) — The list of roles to which the profile is applied.
|
|
- `settings` ([Array](../../sql-reference/data-types/array.md)([Tuple](../../sql-reference/data-types/tuple.md)([LowCardinality(String)](../../sql-reference/data-types/lowcardinality.md), [String](../../sql-reference/data-types/string.md)))) — Settings that were changed when the client logged in/out.
|
|
- `client_address` ([IPv6](../../sql-reference/data-types/ipv6.md)) — The IP address that was used to log in/out.
|
|
- `client_port` ([UInt16](../../sql-reference/data-types/int-uint.md)) — The client port that was used to log in/out.
|
|
- `interface` ([Enum8](../../sql-reference/data-types/enum.md)) — The interface from which the login was initiated. Possible values:
|
|
- `TCP`
|
|
- `HTTP`
|
|
- `gRPC`
|
|
- `MySQL`
|
|
- `PostgreSQL`
|
|
- `client_hostname` ([String](../../sql-reference/data-types/string.md)) — The hostname of the client machine where the [clickhouse-client](../../interfaces/cli.md) or another TCP client is run.
|
|
- `client_name` ([String](../../sql-reference/data-types/string.md)) — The `clickhouse-client` or another TCP client name.
|
|
- `client_revision` ([UInt32](../../sql-reference/data-types/int-uint.md)) — Revision of the `clickhouse-client` or another TCP client.
|
|
- `client_version_major` ([UInt32](../../sql-reference/data-types/int-uint.md)) — The major version of the `clickhouse-client` or another TCP client.
|
|
- `client_version_minor` ([UInt32](../../sql-reference/data-types/int-uint.md)) — The minor version of the `clickhouse-client` or another TCP client.
|
|
- `client_version_patch` ([UInt32](../../sql-reference/data-types/int-uint.md)) — Patch component of the `clickhouse-client` or another TCP client version.
|
|
- `failure_reason` ([String](../../sql-reference/data-types/string.md)) — The exception message containing the reason for the login/logout failure.
|
|
|
|
**Example**
|
|
|
|
Query:
|
|
|
|
``` sql
|
|
SELECT * FROM system.session_log LIMIT 1 FORMAT Vertical;
|
|
```
|
|
|
|
Result:
|
|
|
|
``` text
|
|
Row 1:
|
|
──────
|
|
hostname: clickhouse.eu-central1.internal
|
|
type: LoginSuccess
|
|
auth_id: 45e6bd83-b4aa-4a23-85e6-bd83b4aa1a23
|
|
session_id:
|
|
event_date: 2021-10-14
|
|
event_time: 2021-10-14 20:33:52
|
|
event_time_microseconds: 2021-10-14 20:33:52.104247
|
|
user: default
|
|
auth_type: PLAINTEXT_PASSWORD
|
|
profiles: ['default']
|
|
roles: []
|
|
settings: [('load_balancing','random'),('max_memory_usage','10000000000')]
|
|
client_address: ::ffff:127.0.0.1
|
|
client_port: 38490
|
|
interface: TCP
|
|
client_hostname:
|
|
client_name: ClickHouse client
|
|
client_revision: 54449
|
|
client_version_major: 21
|
|
client_version_minor: 10
|
|
client_version_patch: 0
|
|
failure_reason:
|
|
```
|