patroni.postgresql.postmaster module

class patroni.postgresql.postmaster.PostmasterProcess(pid: int)View on GitHub

Bases: Process

__init__(pid: int) → NoneView on GitHub

classmethod _from_pidfile(data_dir: str) → PostmasterProcess | NoneView on GitHub

_is_postmaster_process() → boolView on GitHub

static _read_postmaster_pidfile(data_dir: str) → Dict[str, str]View on GitHub

Reads and parses postmaster.pid from the data directory

:returns dictionary of values if successful, empty dictionary otherwise

classmethod from_pid(pid: int) → PostmasterProcess | NoneView on GitHub

static from_pidfile(data_dir: str) → PostmasterProcess | NoneView on GitHub

pg_ctl_kill(mode: str, pg_ctl: str) → bool | NoneView on GitHub

signal_kill() → boolView on GitHub

to suspend and kill postmaster and all children

:returns True if postmaster and children are killed, False if error

signal_stop(mode: str, pg_ctl: str = 'pg_ctl') → bool | NoneView on GitHub

Signal postmaster process to stop

:returns None if signaled, True if process is already gone, False if error

static start(pgcommand: str, data_dir: str, conf: str, options: List[str]) → PostmasterProcess | NoneView on GitHub

wait_for_user_backends_to_close(stop_timeout: float | None) → NoneView on GitHub

patroni.postgresql.postmaster.pg_ctl_start(conn: Connection, cmdline: List[str], env: Dict[str, str]) → NoneView on GitHub