patroni.postgresql.postmaster module

class patroni.postgresql.postmaster.PostmasterProcess(pid: int)

Bases: Process

classmethod from_pid(pid: int) → Optional[PostmasterProcess]

static from_pidfile(data_dir: str) → Optional[PostmasterProcess]

pg_ctl_kill(mode: str, pg_ctl: str) → Optional[bool]

signal_kill() → bool

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') → Optional[bool]

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]) → Optional[PostmasterProcess]

wait_for_user_backends_to_close(stop_timeout: Optional[float]) → None

patroni.postgresql.postmaster.pg_ctl_start(conn: Connection, cmdline: List[str], env: Dict[str, str]) → None