mirror of
https://github.com/outbackdingo/patroni.git
synced 2026-08-25 07:20:20 +00:00
Alexander KukushkinandGitHub
bfbc4860d5
* new node can join the cluster dynamically and become a part of consensus * it is also possible to join only Patroni cluster (without adding the node to the raft), just comment or remove `raft.self_addr` for that * when the node joins the cluster it is using values from `raft.partner_addrs` only for initial discovery. * It is possible to run Patroni and Postgres on two nodes plus one node with `patroni_raft_controller` (without Patroni and Postgres). In such setup one can temporarily lose one node without affecting the primary.
189 lines
7.5 KiB
Python
189 lines
7.5 KiB
Python
import etcd
|
|
import logging
|
|
import os
|
|
import signal
|
|
import time
|
|
import unittest
|
|
|
|
import patroni.config as config
|
|
from mock import Mock, PropertyMock, patch
|
|
from patroni.api import RestApiServer
|
|
from patroni.async_executor import AsyncExecutor
|
|
from patroni.dcs.etcd import Client
|
|
from patroni.exceptions import DCSError
|
|
from patroni.postgresql import Postgresql
|
|
from patroni.postgresql.config import ConfigHandler
|
|
from patroni import Patroni, main as _main, patroni_main, check_psycopg2
|
|
from six.moves import BaseHTTPServer, builtins
|
|
from threading import Thread
|
|
|
|
from . import psycopg2_connect, SleepException
|
|
from .test_etcd import etcd_read, etcd_write
|
|
from .test_postgresql import MockPostmaster
|
|
|
|
|
|
class MockFrozenImporter(object):
|
|
|
|
toc = set(['patroni.dcs.etcd'])
|
|
|
|
|
|
@patch('time.sleep', Mock())
|
|
@patch('subprocess.call', Mock(return_value=0))
|
|
@patch('psycopg2.connect', psycopg2_connect)
|
|
@patch.object(ConfigHandler, 'append_pg_hba', Mock())
|
|
@patch.object(ConfigHandler, 'write_postgresql_conf', Mock())
|
|
@patch.object(ConfigHandler, 'write_recovery_conf', Mock())
|
|
@patch.object(Postgresql, 'is_running', Mock(return_value=MockPostmaster()))
|
|
@patch.object(Postgresql, 'call_nowait', Mock())
|
|
@patch.object(BaseHTTPServer.HTTPServer, '__init__', Mock())
|
|
@patch.object(AsyncExecutor, 'run', Mock())
|
|
@patch.object(etcd.Client, 'write', etcd_write)
|
|
@patch.object(etcd.Client, 'read', etcd_read)
|
|
class TestPatroni(unittest.TestCase):
|
|
|
|
def test_no_config(self):
|
|
self.assertRaises(SystemExit, patroni_main)
|
|
|
|
@patch('sys.argv', ['patroni.py', '--validate-config', 'postgres0.yml'])
|
|
def test_validate_config(self):
|
|
self.assertRaises(SystemExit, patroni_main)
|
|
|
|
@patch('pkgutil.iter_importers', Mock(return_value=[MockFrozenImporter()]))
|
|
@patch('sys.frozen', Mock(return_value=True), create=True)
|
|
@patch.object(BaseHTTPServer.HTTPServer, '__init__', Mock())
|
|
@patch.object(etcd.Client, 'read', etcd_read)
|
|
@patch.object(Thread, 'start', Mock())
|
|
@patch.object(Client, 'machines', PropertyMock(return_value=['http://remotehost:2379']))
|
|
def setUp(self):
|
|
self._handlers = logging.getLogger().handlers[:]
|
|
RestApiServer._BaseServer__is_shut_down = Mock()
|
|
RestApiServer._BaseServer__shutdown_request = True
|
|
RestApiServer.socket = 0
|
|
os.environ['PATRONI_POSTGRESQL_DATA_DIR'] = 'data/test0'
|
|
conf = config.Config('postgres0.yml')
|
|
self.p = Patroni(conf)
|
|
|
|
def tearDown(self):
|
|
logging.getLogger().handlers[:] = self._handlers
|
|
|
|
@patch('patroni.dcs.AbstractDCS.get_cluster', Mock(side_effect=[None, DCSError('foo'), None]))
|
|
def test_load_dynamic_configuration(self):
|
|
self.p.config._dynamic_configuration = {}
|
|
self.p.load_dynamic_configuration()
|
|
self.p.load_dynamic_configuration()
|
|
|
|
@patch('sys.argv', ['patroni.py', 'postgres0.yml'])
|
|
@patch('time.sleep', Mock(side_effect=SleepException))
|
|
@patch.object(etcd.Client, 'delete', Mock())
|
|
@patch.object(Client, 'machines', PropertyMock(return_value=['http://remotehost:2379']))
|
|
@patch.object(Thread, 'join', Mock())
|
|
def test_patroni_patroni_main(self):
|
|
with patch('subprocess.call', Mock(return_value=1)):
|
|
with patch.object(Patroni, 'run', Mock(side_effect=SleepException)):
|
|
os.environ['PATRONI_POSTGRESQL_DATA_DIR'] = 'data/test0'
|
|
self.assertRaises(SleepException, patroni_main)
|
|
with patch.object(Patroni, 'run', Mock(side_effect=KeyboardInterrupt())):
|
|
with patch('patroni.ha.Ha.is_paused', Mock(return_value=True)):
|
|
os.environ['PATRONI_POSTGRESQL_DATA_DIR'] = 'data/test0'
|
|
patroni_main()
|
|
|
|
@patch('os.getpid')
|
|
@patch('multiprocessing.Process')
|
|
@patch('patroni.patroni_main', Mock())
|
|
def test_patroni_main(self, mock_process, mock_getpid):
|
|
mock_getpid.return_value = 2
|
|
_main()
|
|
|
|
mock_getpid.return_value = 1
|
|
|
|
def mock_signal(signo, handler):
|
|
handler(signo, None)
|
|
|
|
with patch('signal.signal', mock_signal):
|
|
with patch('os.waitpid', Mock(side_effect=[(1, 0), (0, 0)])):
|
|
_main()
|
|
with patch('os.waitpid', Mock(side_effect=OSError)):
|
|
_main()
|
|
|
|
ref = {'passtochild': lambda signo, stack_frame: 0}
|
|
|
|
def mock_sighup(signo, handler):
|
|
if hasattr(signal, 'SIGHUP') and signo == signal.SIGHUP:
|
|
ref['passtochild'] = handler
|
|
|
|
def mock_join():
|
|
ref['passtochild'](0, None)
|
|
|
|
mock_process.return_value.join = mock_join
|
|
with patch('signal.signal', mock_sighup), patch('os.kill', Mock()):
|
|
self.assertIsNone(_main())
|
|
|
|
@patch('patroni.config.Config.save_cache', Mock())
|
|
@patch('patroni.config.Config.reload_local_configuration', Mock(return_value=True))
|
|
@patch('patroni.ha.Ha.is_leader', Mock(return_value=True))
|
|
@patch.object(Postgresql, 'state', PropertyMock(return_value='running'))
|
|
@patch.object(Postgresql, 'data_directory_empty', Mock(return_value=False))
|
|
def test_run(self):
|
|
self.p.postgresql.set_role('replica')
|
|
self.p.sighup_handler()
|
|
self.p.ha.dcs.watch = Mock(side_effect=SleepException)
|
|
self.p.api.start = Mock()
|
|
self.p.logger.start = Mock()
|
|
self.p.config._dynamic_configuration = {}
|
|
self.assertRaises(SleepException, self.p.run)
|
|
with patch('patroni.config.Config.reload_local_configuration', Mock(return_value=False)):
|
|
self.p.sighup_handler()
|
|
self.assertRaises(SleepException, self.p.run)
|
|
with patch('patroni.config.Config.set_dynamic_configuration', Mock(return_value=True)):
|
|
self.assertRaises(SleepException, self.p.run)
|
|
with patch('patroni.postgresql.Postgresql.data_directory_empty', Mock(return_value=False)):
|
|
self.assertRaises(SleepException, self.p.run)
|
|
|
|
def test_sigterm_handler(self):
|
|
self.assertRaises(SystemExit, self.p.sigterm_handler)
|
|
|
|
def test_schedule_next_run(self):
|
|
self.p.ha.cluster = Mock()
|
|
self.p.ha.dcs.watch = Mock(return_value=True)
|
|
self.p.schedule_next_run()
|
|
self.p.next_run = time.time() - self.p.dcs.loop_wait - 1
|
|
self.p.schedule_next_run()
|
|
|
|
def test_noloadbalance(self):
|
|
self.p.tags['noloadbalance'] = True
|
|
self.assertTrue(self.p.noloadbalance)
|
|
|
|
def test_nofailover(self):
|
|
self.p.tags['nofailover'] = True
|
|
self.assertTrue(self.p.nofailover)
|
|
self.p.tags['nofailover'] = None
|
|
self.assertFalse(self.p.nofailover)
|
|
|
|
def test_replicatefrom(self):
|
|
self.assertIsNone(self.p.replicatefrom)
|
|
self.p.tags['replicatefrom'] = 'foo'
|
|
self.assertEqual(self.p.replicatefrom, 'foo')
|
|
|
|
def test_reload_config(self):
|
|
self.p.reload_config()
|
|
self.p.get_tags = Mock(side_effect=Exception)
|
|
self.p.reload_config(local=True)
|
|
|
|
def test_nosync(self):
|
|
self.p.tags['nosync'] = True
|
|
self.assertTrue(self.p.nosync)
|
|
self.p.tags['nosync'] = None
|
|
self.assertFalse(self.p.nosync)
|
|
|
|
@patch.object(Thread, 'join', Mock())
|
|
def test_shutdown(self):
|
|
self.p.api.shutdown = Mock(side_effect=Exception)
|
|
self.p.ha.shutdown = Mock(side_effect=Exception)
|
|
self.p.shutdown()
|
|
|
|
def test_check_psycopg2(self):
|
|
with patch.object(builtins, '__import__', Mock(side_effect=ImportError)):
|
|
self.assertRaises(SystemExit, check_psycopg2)
|
|
with patch('psycopg2.__version__', '2.5.3.dev1 a b c'):
|
|
self.assertRaises(SystemExit, check_psycopg2)
|