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How to use tokio-console in GreptimeDB ​

This document introduces how to use the tokio-console in GreptimeDB.

First, build GreptimeDB with feature cmd/tokio-console. Also the tokio_unstable cfg must be enabled:

bash
RUSTFLAGS="--cfg tokio_unstable" cargo build -F cmd/tokio-console

Then start GreptimeDB with tokio console binding address config: --tokio-console-addr. Remember to run with the tokio_unstable cfg. For example:

bash
RUSTFLAGS="--cfg tokio_unstable" greptime --tokio-console-addr="127.0.0.1:6669" standalone start

Now you can use tokio-console to connect to GreptimeDB's tokio console subscriber:

bash
tokio-console [TARGET_ADDR]

"TARGET_ADDR" defaults to "http://127.0.0.1:6669".