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154d19ce72
* The time format (connected_time field) is incorrect * Change the description and increase the field list display * Update 02735_system_zookeeper_connection.reference * Update 02735_system_zookeeper_connection.sql * Update 02735_system_zookeeper_connection.sql * Update 02735_system_zookeeper_connection.reference * fix test --------- Co-authored-by: Alexander Tokmakov <tavplubix@gmail.com> Co-authored-by: Alexander Tokmakov <tavplubix@clickhouse.com>
2.3 KiB
2.3 KiB
| slug |
|---|
| /en/operations/system-tables/zookeeper_connection |
#zookeeper_connection
This table does not exist if ZooKeeper is not configured. The 'system.zookeeper_connection' table shows current connections to ZooKeeper (including auxiliary ZooKeepers). Each row shows information about one connection.
Columns:
name(String) — ZooKeeper cluster's name.host(String) — The hostname/IP of the ZooKeeper node that ClickHouse connected to.port(String) — The port of the ZooKeeper node that ClickHouse connected to.index(UInt8) — The index of the ZooKeeper node that ClickHouse connected to. The index is from ZooKeeper config.connected_time(DateTime) — When the connection was establishedsession_uptime_elapsed_seconds(UInt64) — Seconds elapsed since the connection was establishedis_expired(UInt8) — Is the current connection expired.keeper_api_version(String) — Keeper API version.client_id(UInt64) — Session id of the connection.
Example:
SELECT * FROM system.zookeeper_connection;
┌─name────┬─host──────┬─port─┬─index─┬──────connected_time─┬─session_uptime_elapsed_seconds─┬─is_expired─┬─keeper_api_version─┬─client_id─┐
│ default │ 127.0.0.1 │ 9181 │ 0 │ 2023-06-15 14:36:01 │ 3058 │ 0 │ 3 │ 5 │
└─────────┴───────────┴──────┴───────┴─────────────────────┴────────────────────────────────┴────────────┴────────────────────┴───────────┘