def __init__(self, config):
self.name = config['name']
self.scope = config['scope']
self._data_dir = config['data_dir']
self._database = config.get('database', 'postgres')
self._version_file = os.path.join(self._data_dir, 'PG_VERSION')
self._pg_control = os.path.join(self._data_dir, 'global', 'pg_control')
self._major_version = self.get_major_version()
self._state_lock = Lock()
self.set_state('stopped')
self._pending_restart = False
self._connection = Connection()
self.config = ConfigHandler(self, config)
self.config.check_directories()
self._bin_dir = config.get('bin_dir') or ''
self.bootstrap = Bootstrap(self)
self.bootstrapping = False
self.__thread_ident = current_thread().ident
self.slots_handler = SlotsHandler(self)
self._callback_executor = CallbackExecutor()
self.__cb_called = False
self.__cb_pending = None
self.cancellable = CancellableSubprocess()
self._sysid = None
self.retry = Retry(max_tries=-1, deadline=config['retry_timeout']/2.0, max_delay=1,
retry_exceptions=PostgresConnectionException)
# Retry 'pg_is_in_recovery()' only once
self._is_leader_retry = Retry(max_tries=1, deadline=config['retry_timeout']/2.0, max_delay=1,
retry_exceptions=PostgresConnectionException)
self._role_lock = Lock()
self.set_role(self.get_postgres_role_from_data_directory())
self._state_entry_timestamp = None
self._cluster_info_state = {}
self._cached_replica_timeline = None
# Last known running process
self._postmaster_proc = None
if self.is_running():
self.set_state('running')
self.set_role('master' if self.is_leader() else 'replica')
self.config.write_postgresql_conf() # we are "joining" already running postgres
hba_saved = self.config.replace_pg_hba()
ident_saved = self.config.replace_pg_ident()
if hba_saved or ident_saved:
self.reload()
elif self.role == 'master':
self.set_role('demoted')
def setUp(self):
self.c = CancellableSubprocess()