chdig 命令

常用示例

说明

chdig provides an interactive terminal dashboard for ClickHouse, similar to how top or htop work for Linux system processes. It consolidates ClickHouse's extensive system introspection tables into a navigable TUI with flamegraph visualization directly in the terminal (CPU, real-time, memory), EXPLAIN integration for analyzing query plans and pipelines, cluster mode for aggregating queries across all shards, and historical mode for examining rotated system log tables.

参数

-u, --url _URL_

Connection URL. Also reads CHDIG_URL environment variable.

--host _HOST_

Override host (clickhouse-client compatible).

--port _PORT_

Override port.

--user _USER_

Override user. Also reads CLICKHOUSE_USER.

--password _PASS_

Override password. Also reads CLICKHOUSE_PASSWORD.

--secure

Use TLS/SSL.

--config _FILE_

ClickHouse-like config file (YAML).

-C, --connection _NAME_

Named connection profile from config file.

-c, --cluster _NAME_

Cluster name; enables distributed queries across shards.

--history

Aggregate historical system log data using merge().

-d, --delay-interval _MS_

Refresh interval in milliseconds (default: 30000).

-g, --group-by

Group distributed queries (default in cluster mode).

-b, --start _TIME_

Begin of time interval (default: 1 hour ago).

-e, --end _TIME_

End of time interval.

--completion _SHELL_

Generate shell completion script.