mirror of
https://github.com/neondatabase/neon.git
synced 2025-12-22 21:59:59 +00:00
63ea4b0579
## Summary of changes All changes are no-op except that the tracing-appender lib is upgraded from 0.2.2 to 0.2.3
31 lines
1.3 KiB
Rust
31 lines
1.3 KiB
Rust
use anyhow::{Context, anyhow};
|
|
|
|
// Run `/usr/local/bin/pg_isready -p {port}`
|
|
// Check the connectivity of PG
|
|
// Success means PG is listening on the port and accepting connections
|
|
// Note that PG does not need to authenticate the connection, nor reserve a connection quota for it.
|
|
// See https://www.postgresql.org/docs/current/app-pg-isready.html
|
|
pub fn pg_isready(bin: &str, port: u16) -> anyhow::Result<()> {
|
|
let child_result = std::process::Command::new(bin)
|
|
.arg("-p")
|
|
.arg(port.to_string())
|
|
.spawn();
|
|
|
|
child_result
|
|
.context("spawn() failed")
|
|
.and_then(|mut child| child.wait().context("wait() failed"))
|
|
.and_then(|status| match status.success() {
|
|
true => Ok(()),
|
|
false => Err(anyhow!("process exited with {status}")),
|
|
})
|
|
// wrap any prior error with the overall context that we couldn't run the command
|
|
.with_context(|| format!("could not run `{bin} --port {port}`"))
|
|
}
|
|
|
|
// It's safe to assume pg_isready is under the same directory with postgres,
|
|
// because it is a PG util bin installed along with postgres
|
|
pub fn get_pg_isready_bin(pgbin: &str) -> String {
|
|
let split = pgbin.split("/").collect::<Vec<&str>>();
|
|
split[0..split.len() - 1].join("/") + "/pg_isready"
|
|
}
|