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vtgatev2_test.py
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#!/usr/bin/env python
# coding: utf-8
import hmac
import json
import logging
import os
import struct
import threading
import time
import traceback
import unittest
import urllib
from multiprocessing.pool import ThreadPool
import environment
import tablet
import utils
from net import gorpc
from vtdb import keyrange
from vtdb import keyrange_constants
from vtdb import keyspace
from vtdb import dbexceptions
from vtdb import vtdb_logger
from vtdb import vtgatev2
from vtdb import vtgate_cursor
from zk import zkocc
conn_class = vtgatev2
shard_0_master = tablet.Tablet()
shard_0_replica1 = tablet.Tablet()
shard_0_replica2 = tablet.Tablet()
shard_1_master = tablet.Tablet()
shard_1_replica1 = tablet.Tablet()
shard_1_replica2 = tablet.Tablet()
vtgate_server = None
vtgate_port = None
KEYSPACE_NAME = 'test_keyspace'
shard_names = ['-80', '80-']
shard_kid_map = {'-80': [527875958493693904, 626750931627689502,
345387386794260318, 332484755310826578,
1842642426274125671, 1326307661227634652,
1761124146422844620, 1661669973250483744,
3361397649937244239, 2444880764308344533],
'80-': [9767889778372766922, 9742070682920810358,
10296850775085416642, 9537430901666854108,
10440455099304929791, 11454183276974683945,
11185910247776122031, 10460396697869122981,
13379616110062597001, 12826553979133932576],
}
create_vt_insert_test = '''create table vt_insert_test (
id bigint auto_increment,
msg varchar(64),
keyspace_id bigint(20) unsigned NOT NULL,
primary key (id)
) Engine=InnoDB'''
create_vt_a = '''create table vt_a (
eid bigint,
id int,
keyspace_id bigint(20) unsigned NOT NULL,
primary key(eid, id)
) Engine=InnoDB'''
create_tables = [create_vt_insert_test, create_vt_a]
pack_kid = struct.Struct('!Q').pack
def setUpModule():
logging.debug("in setUpModule")
try:
environment.topo_server().setup()
# start mysql instance external to the test
setup_procs = [shard_0_master.init_mysql(),
shard_0_replica1.init_mysql(),
shard_0_replica2.init_mysql(),
shard_1_master.init_mysql(),
shard_1_replica1.init_mysql(),
shard_1_replica2.init_mysql()
]
utils.wait_procs(setup_procs)
setup_tablets()
except:
tearDownModule()
raise
def tearDownModule():
global vtgate_server
logging.debug("in tearDownModule")
if utils.options.skip_teardown:
return
logging.debug("Tearing down the servers and setup")
utils.vtgate_kill(vtgate_server)
tablet.kill_tablets([shard_0_master,
shard_0_replica1, shard_0_replica2,
shard_1_master,
shard_1_replica1, shard_1_replica2])
teardown_procs = [shard_0_master.teardown_mysql(),
shard_0_replica1.teardown_mysql(),
shard_0_replica2.teardown_mysql(),
shard_1_master.teardown_mysql(),
shard_1_replica1.teardown_mysql(),
shard_1_replica2.teardown_mysql(),
]
utils.wait_procs(teardown_procs, raise_on_error=False)
environment.topo_server().teardown()
utils.kill_sub_processes()
utils.remove_tmp_files()
shard_0_master.remove_tree()
shard_0_replica1.remove_tree()
shard_0_replica2.remove_tree()
shard_1_master.remove_tree()
shard_1_replica1.remove_tree()
shard_1_replica2.remove_tree()
def setup_tablets():
global vtgate_server
global vtgate_port
# Start up a master mysql and vttablet
logging.debug("Setting up tablets")
utils.run_vtctl(['CreateKeyspace', KEYSPACE_NAME])
utils.run_vtctl(['SetKeyspaceShardingInfo', '-force', KEYSPACE_NAME,
'keyspace_id', 'uint64'])
shard_0_master.init_tablet('master', keyspace=KEYSPACE_NAME, shard='-80')
shard_0_replica1.init_tablet('replica', keyspace=KEYSPACE_NAME, shard='-80')
shard_0_replica2.init_tablet('replica', keyspace=KEYSPACE_NAME, shard='-80')
shard_1_master.init_tablet('master', keyspace=KEYSPACE_NAME, shard='80-')
shard_1_replica1.init_tablet('replica', keyspace=KEYSPACE_NAME, shard='80-')
shard_1_replica2.init_tablet('replica', keyspace=KEYSPACE_NAME, shard='80-')
utils.run_vtctl(['RebuildKeyspaceGraph', KEYSPACE_NAME], auto_log=True)
for t in [shard_0_master, shard_0_replica1, shard_0_replica2,
shard_1_master, shard_1_replica1, shard_1_replica2]:
t.create_db('vt_test_keyspace')
for create_table in create_tables:
t.mquery(shard_0_master.dbname, create_table)
t.start_vttablet(wait_for_state=None)
for t in [shard_0_master, shard_0_replica1, shard_0_replica2,
shard_1_master, shard_1_replica1, shard_1_replica2]:
t.wait_for_vttablet_state('SERVING')
utils.run_vtctl(['ReparentShard', '-force', KEYSPACE_NAME+'/-80',
shard_0_master.tablet_alias], auto_log=True)
utils.run_vtctl(['ReparentShard', '-force', KEYSPACE_NAME+'/80-',
shard_1_master.tablet_alias], auto_log=True)
utils.run_vtctl(['RebuildKeyspaceGraph', KEYSPACE_NAME],
auto_log=True)
utils.check_srv_keyspace('test_nj', KEYSPACE_NAME,
'Partitions(master): -80 80-\n' +
'Partitions(rdonly): -80 80-\n' +
'Partitions(replica): -80 80-\n')
vtgate_server, vtgate_port = utils.vtgate_start()
def get_connection(user=None, password=None, timeout=10.0):
global vtgate_port
conn = None
vtgate_addrs = {"vt": ["localhost:%s" % (vtgate_port),]}
conn = conn_class.connect(vtgate_addrs, timeout,
user=user, password=password)
return conn
def get_keyrange(shard_name):
kr = None
if shard_name == keyrange_constants.SHARD_ZERO:
kr = keyrange.KeyRange(keyrange_constants.NON_PARTIAL_KEYRANGE)
else:
kr = keyrange.KeyRange(shard_name)
return kr
def _delete_all(shard_index, table_name):
vtgate_conn = get_connection()
# This write is to set up the test with fresh insert
# and hence performing it directly on the connection.
vtgate_conn.begin()
vtgate_conn._execute("delete from %s" % table_name, {},
KEYSPACE_NAME, 'master',
keyranges=[get_keyrange(shard_names[shard_index])])
vtgate_conn.commit()
def do_write(count, shard_index):
kid_list = shard_kid_map[shard_names[shard_index]]
_delete_all(shard_index, 'vt_insert_test')
vtgate_conn = get_connection()
for x in xrange(count):
keyspace_id = kid_list[x%len(kid_list)]
cursor = vtgate_conn.cursor(KEYSPACE_NAME, 'master',
keyspace_ids=[pack_kid(keyspace_id)],
writable=True)
cursor.begin()
cursor.execute(
"insert into vt_insert_test (msg, keyspace_id) values (%(msg)s, %(keyspace_id)s)",
{'msg': 'test %s' % x, 'keyspace_id': keyspace_id})
cursor.commit()
def restart_vtgate(extra_args={}):
global vtgate_server, vtgate_port
utils.vtgate_kill(vtgate_server)
vtgate_server, vtgate_port = utils.vtgate_start(vtgate_port, extra_args=extra_args)
class TestVTGateFunctions(unittest.TestCase):
def setUp(self):
self.shard_index = 1
self.keyrange = get_keyrange(shard_names[self.shard_index])
self.master_tablet = shard_1_master
self.replica_tablet = shard_1_replica1
def test_status(self):
self.assertIn('</html>', utils.get_status(vtgate_port))
def test_connect(self):
try:
vtgate_conn = get_connection()
except Exception, e:
self.fail("Connection to vtgate failed with error %s" % str(e))
self.assertNotEqual(vtgate_conn, None)
def test_writes(self):
try:
vtgate_conn = get_connection()
_delete_all(self.shard_index, 'vt_insert_test')
count = 10
kid_list = shard_kid_map[shard_names[self.shard_index]]
for x in xrange(count):
keyspace_id = kid_list[count%len(kid_list)]
cursor = vtgate_conn.cursor(KEYSPACE_NAME, 'master',
keyspace_ids=[pack_kid(keyspace_id)],
writable=True)
cursor.begin()
cursor.execute(
"insert into vt_insert_test (msg, keyspace_id) values (%(msg)s, %(keyspace_id)s)",
{'msg': 'test %s' % x, 'keyspace_id': keyspace_id})
cursor.commit()
cursor = vtgate_conn.cursor(KEYSPACE_NAME, 'master',
keyranges=[self.keyrange])
rowcount = cursor.execute("select * from vt_insert_test", {})
self.assertEqual(rowcount, count, "master fetch works")
except Exception, e:
logging.debug("Write failed with error %s" % str(e))
raise
def test_query_routing(self):
"""Test VtGate routes queries to the right tablets"""
try:
row_counts = [50, 75]
for shard_index in [0,1]:
do_write(row_counts[shard_index], shard_index)
vtgate_conn = get_connection()
for shard_index in [0,1]:
# Fetch all rows in each shard
cursor = vtgate_conn.cursor(KEYSPACE_NAME, 'master',
keyranges=[get_keyrange(shard_names[shard_index])])
rowcount = cursor.execute("select * from vt_insert_test", {})
# Verify row count
self.assertEqual(rowcount, row_counts[shard_index])
# Verify keyspace id
for result in cursor.results:
kid = result[2]
self.assertTrue(kid in shard_kid_map[shard_names[shard_index]])
# Do a cross shard range query and assert all rows are fetched
cursor = vtgate_conn.cursor(KEYSPACE_NAME, 'master',
keyranges=[get_keyrange('75-95')])
rowcount = cursor.execute("select * from vt_insert_test", {})
self.assertEqual(rowcount, row_counts[0] + row_counts[1])
except Exception, e:
logging.debug("failed with error %s, %s" % (str(e), traceback.print_exc()))
raise
def test_rollback(self):
try:
vtgate_conn = get_connection()
count = 10
_delete_all(self.shard_index, 'vt_insert_test')
kid_list = shard_kid_map[shard_names[self.shard_index]]
for x in xrange(count):
keyspace_id = kid_list[x%len(kid_list)]
cursor = vtgate_conn.cursor(KEYSPACE_NAME, 'master',
keyspace_ids=[pack_kid(keyspace_id)],
writable=True)
cursor.begin()
cursor.execute(
"insert into vt_insert_test (msg, keyspace_id) values (%(msg)s, %(keyspace_id)s)",
{'msg': 'test %s' % x, 'keyspace_id': keyspace_id})
cursor.commit()
vtgate_conn.begin()
vtgate_conn._execute(
"delete from vt_insert_test", {},
KEYSPACE_NAME, 'master',
keyranges=[self.keyrange])
vtgate_conn.rollback()
cursor = vtgate_conn.cursor(KEYSPACE_NAME, 'master',
keyranges=[self.keyrange])
rowcount = cursor.execute("select * from vt_insert_test", {})
logging.debug("ROLLBACK TEST rowcount %d count %d" % (rowcount, count))
self.assertEqual(rowcount, count, "Fetched rows(%d) != inserted rows(%d), rollback didn't work" % (rowcount, count))
do_write(10, self.shard_index)
except Exception, e:
self.fail("Write failed with error %s %s" % (str(e), traceback.print_exc()))
def test_execute_entity_ids(self):
try:
vtgate_conn = get_connection()
count = 10
_delete_all(self.shard_index, 'vt_a')
eid_map = {}
kid_list = shard_kid_map[shard_names[self.shard_index]]
for x in xrange(count):
keyspace_id = kid_list[x%len(kid_list)]
eid_map[x] = pack_kid(keyspace_id)
cursor = vtgate_conn.cursor(KEYSPACE_NAME, 'master',
keyspace_ids=[pack_kid(keyspace_id)],
writable=True)
cursor.begin()
cursor.execute(
"insert into vt_a (eid, id, keyspace_id) \
values (%(eid)s, %(id)s, %(keyspace_id)s)",
{'eid': x, 'id': x, 'keyspace_id': keyspace_id})
cursor.commit()
cursor = vtgate_conn.cursor(KEYSPACE_NAME, 'master',
keyspace_ids=eid_map.values())
rowcount = cursor.execute_entity_ids("select * from vt_a", {}, eid_map,
'id')
self.assertEqual(rowcount, count, "entity_ids works")
except Exception, e:
self.fail("Execute entity ids failed with error %s %s" %
(str(e),
traceback.print_exc()))
def test_batch_read(self):
try:
vtgate_conn = get_connection()
count = 10
_delete_all(self.shard_index, 'vt_insert_test')
kid_list = shard_kid_map[shard_names[self.shard_index]]
for x in xrange(count):
keyspace_id = kid_list[x%len(kid_list)]
cursor = vtgate_conn.cursor(KEYSPACE_NAME, 'master',
keyspace_ids=[pack_kid(keyspace_id)],
writable=True)
cursor.begin()
cursor.execute(
"insert into vt_insert_test (msg, keyspace_id) values (%(msg)s, %(keyspace_id)s)",
{'msg': 'test %s' % x, 'keyspace_id': keyspace_id})
cursor.commit()
_delete_all(self.shard_index, 'vt_a')
for x in xrange(count):
keyspace_id = kid_list[x%len(kid_list)]
cursor = vtgate_conn.cursor(KEYSPACE_NAME, 'master',
keyspace_ids=[pack_kid(keyspace_id)],
writable=True)
cursor.begin()
cursor.execute(
"insert into vt_a (eid, id, keyspace_id) \
values (%(eid)s, %(id)s, %(keyspace_id)s)",
{'eid': x, 'id': x, 'keyspace_id': keyspace_id})
cursor.commit()
kid_list = [pack_kid(kid) for kid in kid_list]
cursor = vtgate_conn.cursor(KEYSPACE_NAME, 'master',
keyspace_ids=kid_list,
cursorclass=vtgate_cursor.BatchVTGateCursor)
cursor.execute("select * from vt_insert_test", {})
cursor.execute("select * from vt_a", {})
cursor.flush()
self.assertEqual(cursor.rowsets[0][1], count)
self.assertEqual(cursor.rowsets[1][1], count)
except Exception, e:
self.fail("Write failed with error %s %s" % (str(e),
traceback.print_exc()))
def test_batch_write(self):
try:
vtgate_conn = get_connection()
count = 10
query_list = []
bind_vars_list = []
query_list.append("delete from vt_insert_test")
bind_vars_list.append({})
kid_list = shard_kid_map[shard_names[self.shard_index]]
for x in xrange(count):
keyspace_id = kid_list[x%len(kid_list)]
query_list.append("insert into vt_insert_test (msg, keyspace_id) values (%(msg)s, %(keyspace_id)s)")
bind_vars_list.append({'msg': 'test %s' % x, 'keyspace_id': keyspace_id})
query_list.append("delete from vt_a")
bind_vars_list.append({})
for x in xrange(count):
keyspace_id = kid_list[x%len(kid_list)]
query_list.append("insert into vt_a (eid, id, keyspace_id) values (%(eid)s, %(id)s, %(keyspace_id)s)")
bind_vars_list.append({'eid': x, 'id': x, 'keyspace_id': keyspace_id})
vtgate_conn.begin()
vtgate_conn._execute_batch(
query_list, bind_vars_list,
KEYSPACE_NAME, 'master', keyspace_ids=[pack_kid(kid) for kid in kid_list])
vtgate_conn.commit()
results, rowcount, _, _ = vtgate_conn._execute(
"select * from vt_insert_test", {},
KEYSPACE_NAME, 'master',
keyranges=[self.keyrange])
self.assertEqual(rowcount, count)
results, rowcount, _, _ = vtgate_conn._execute(
"select * from vt_a", {},
KEYSPACE_NAME, 'master',
keyranges=[self.keyrange])
self.assertEqual(rowcount, count)
except Exception, e:
self.fail("Write failed with error %s" % str(e))
def test_streaming_fetchsubset(self):
try:
count = 100
do_write(count, self.shard_index)
# Fetch a subset of the total size.
vtgate_conn = get_connection()
stream_cursor = vtgate_conn.cursor(
KEYSPACE_NAME, 'master',
keyranges=[self.keyrange],
cursorclass=vtgate_cursor.StreamVTGateCursor)
stream_cursor.execute("select * from vt_insert_test", {})
fetch_size = 10
rows = stream_cursor.fetchmany(size=fetch_size)
rowcount = 0
for r in rows:
rowcount +=1
self.assertEqual(rowcount, fetch_size)
stream_cursor.close()
except Exception, e:
self.fail("Failed with error %s %s" % (str(e), traceback.print_exc()))
def test_streaming_fetchall(self):
try:
count = 100
do_write(count, self.shard_index)
# Fetch all.
vtgate_conn = get_connection()
stream_cursor = vtgate_conn.cursor(KEYSPACE_NAME, 'master',
keyranges=[self.keyrange],
cursorclass=vtgate_cursor.StreamVTGateCursor)
stream_cursor.execute("select * from vt_insert_test", {})
rows = stream_cursor.fetchall()
rowcount = 0
for r in rows:
rowcount +=1
self.assertEqual(rowcount, count)
stream_cursor.close()
except Exception, e:
self.fail("Failed with error %s %s" % (str(e), traceback.print_exc()))
def test_streaming_fetchone(self):
try:
count = 100
do_write(count, self.shard_index)
# Fetch one.
vtgate_conn = get_connection()
stream_cursor = vtgate_conn.cursor(KEYSPACE_NAME, 'master',
keyranges=[self.keyrange],
cursorclass=vtgate_cursor.StreamVTGateCursor)
stream_cursor.execute("select * from vt_insert_test", {})
rows = stream_cursor.fetchone()
self.assertTrue(type(rows) == tuple, "Received a valid row")
stream_cursor.close()
except Exception, e:
self.fail("Failed with error %s %s" % (str(e), traceback.print_exc()))
def test_streaming_multishards(self):
try:
count = 100
do_write(count, 0)
do_write(count, 1)
vtgate_conn = get_connection()
stream_cursor = vtgate_conn.cursor(
KEYSPACE_NAME, 'master',
keyranges=[keyrange.KeyRange(keyrange_constants.NON_PARTIAL_KEYRANGE)],
cursorclass=vtgate_cursor.StreamVTGateCursor)
stream_cursor.execute("select * from vt_insert_test", {})
rows = stream_cursor.fetchall()
rowcount = 0
for row in rows:
rowcount += 1
self.assertEqual(rowcount, count*2)
stream_cursor.close()
except Exception, e:
self.fail("Failed with error %s %s" % (str(e), traceback.print_exc()))
def test_streaming_zero_results(self):
try:
vtgate_conn = get_connection()
vtgate_conn.begin()
vtgate_conn._execute("delete from vt_insert_test", {},
KEYSPACE_NAME, 'master',
keyranges=[self.keyrange])
vtgate_conn.commit()
# After deletion, should result zero.
stream_cursor = vtgate_conn.cursor(KEYSPACE_NAME, 'master',
keyranges=[self.keyrange],
cursorclass=vtgate_cursor.StreamVTGateCursor)
stream_cursor.execute("select * from vt_insert_test", {})
rows = stream_cursor.fetchall()
rowcount = 0
for r in rows:
rowcount +=1
self.assertEqual(rowcount, 0)
except Exception, e:
self.fail("Failed with error %s %s" % (str(e), traceback.print_exc()))
def test_interleaving(self):
tablet_type = "master"
try:
vtgate_conn = get_connection()
vtgate_conn.begin()
vtgate_conn._execute(
"delete from vt_insert_test", {},
KEYSPACE_NAME, tablet_type,
keyranges=[self.keyrange])
kid_list = shard_kid_map[shard_names[self.shard_index]]
count = len(kid_list)
for x in xrange(count):
keyspace_id = kid_list[x]
vtgate_conn._execute(
"insert into vt_insert_test (msg, keyspace_id) values (%(msg)s, %(keyspace_id)s)",
{'msg': 'test %s' % x, 'keyspace_id': keyspace_id},
KEYSPACE_NAME, tablet_type, keyspace_ids=[pack_kid(keyspace_id)])
vtgate_conn.commit()
vtgate_conn2 = get_connection()
query = "select keyspace_id from vt_insert_test where keyspace_id = %(kid)s"
thd = threading.Thread(target=self._query_lots, args=(
vtgate_conn2,
query,
{'kid': kid_list[0]},
KEYSPACE_NAME,
tablet_type,
[pack_kid(kid_list[0])]))
thd.start()
for i in xrange(count):
(result, _, _, _) = vtgate_conn._execute(query,
{'kid':kid_list[i]},
KEYSPACE_NAME, tablet_type,
keyspace_ids=[pack_kid(kid_list[i])])
self.assertEqual(result, [(kid_list[i],)])
if i % 10 == 0:
vtgate_conn._stream_execute(query, {'kid':kid_list[i]}, KEYSPACE_NAME,
tablet_type,
keyspace_ids=[pack_kid(kid_list[i])])
while 1:
result = vtgate_conn._stream_next()
if not result:
break
self.assertEqual(result, (kid_list[i],))
thd.join()
except Exception, e:
self.fail("Failed with error %s %s" % (str(e), traceback.print_exc()))
def _query_lots(self,
conn,
query,
bind_vars,
keyspace_name,
tablet_type,
keyspace_ids):
for i in xrange(500):
(result, _, _, _) = conn._execute(query, bind_vars,
keyspace_name,
tablet_type,
keyspace_ids=keyspace_ids)
self.assertEqual(result, [tuple(bind_vars.values())])
class TestFailures(unittest.TestCase):
def setUp(self):
global vtgate_server, vtgate_port
self.shard_index = 1
self.keyrange = get_keyrange(shard_names[self.shard_index])
self.master_tablet = shard_1_master
self.master_tablet.kill_vttablet()
self.tablet_start(self.master_tablet, 'master')
self.replica_tablet = shard_1_replica1
self.replica_tablet.kill_vttablet()
self.tablet_start(self.replica_tablet, 'replica')
self.replica_tablet2 = shard_1_replica2
self.replica_tablet2.kill_vttablet()
self.tablet_start(self.replica_tablet2, 'replica')
utils.vtgate_kill(vtgate_server)
vtgate_server, vtgate_port = utils.vtgate_start(vtgate_port)
def tablet_start(self, tablet, tablet_type, lameduck_period='0.5s'):
return tablet.start_vttablet(lameduck_period=lameduck_period)
# target_tablet_type=tablet_type)
def test_tablet_restart_read(self):
try:
vtgate_conn = get_connection()
except Exception, e:
self.fail("Connection to vtgate failed with error %s" % (str(e)))
self.replica_tablet.kill_vttablet()
self.replica_tablet2.kill_vttablet()
with self.assertRaises(dbexceptions.DatabaseError):
vtgate_conn._execute(
"select 1 from vt_insert_test", {},
KEYSPACE_NAME, 'replica',
keyranges=[self.keyrange])
self.tablet_start(self.replica_tablet, 'replica')
self.tablet_start(self.replica_tablet2, 'replica')
try:
results = vtgate_conn._execute(
"select 1 from vt_insert_test", {},
KEYSPACE_NAME, 'replica',
keyranges=[self.keyrange])
except Exception, e:
self.fail("Communication with shard %s replica failed with error %s" %
(shard_names[self.shard_index], str(e)))
def test_vtgate_restart_read(self):
global vtgate_server, vtgate_port
try:
vtgate_conn = get_connection()
except Exception, e:
self.fail("Connection to vtgate failed with error %s" % (str(e)))
utils.vtgate_kill(vtgate_server)
with self.assertRaises(dbexceptions.OperationalError):
vtgate_conn._execute(
"select 1 from vt_insert_test", {},
KEYSPACE_NAME, 'replica',
keyranges=[self.keyrange])
vtgate_server, vtgate_port = utils.vtgate_start(vtgate_port)
vtgate_conn = get_connection()
vtgate_conn._execute(
"select 1 from vt_insert_test", {},
KEYSPACE_NAME, 'replica',
keyranges=[self.keyrange])
def test_tablet_restart_stream_execute(self):
try:
vtgate_conn = get_connection()
except Exception, e:
self.fail("Connection to vtgate failed with error %s" % (str(e)))
stream_cursor = vtgate_conn.cursor(
KEYSPACE_NAME, 'replica',
keyranges=[self.keyrange],
cursorclass=vtgate_cursor.StreamVTGateCursor)
self.replica_tablet.kill_vttablet()
self.replica_tablet2.kill_vttablet()
with self.assertRaises(dbexceptions.DatabaseError):
stream_cursor.execute("select * from vt_insert_test", {})
self.tablet_start(self.replica_tablet, 'replica')
self.tablet_start(self.replica_tablet2, 'replica')
try:
stream_cursor.execute("select * from vt_insert_test", {})
except Exception, e:
self.fail("Communication with shard0 replica failed with error %s" %
str(e))
def test_vtgate_restart_stream_execute(self):
global vtgate_server, vtgate_port
try:
vtgate_conn = get_connection()
except Exception, e:
self.fail("Connection to vtgate failed with error %s" % (str(e)))
stream_cursor = vtgate_conn.cursor(
KEYSPACE_NAME, 'replica',
keyranges=[self.keyrange],
cursorclass=vtgate_cursor.StreamVTGateCursor)
utils.vtgate_kill(vtgate_server)
with self.assertRaises(dbexceptions.OperationalError):
stream_cursor.execute("select * from vt_insert_test", {})
vtgate_server, vtgate_port = utils.vtgate_start(vtgate_port)
vtgate_conn = get_connection()
stream_cursor = vtgate_conn.cursor(
KEYSPACE_NAME, 'replica',
keyranges=[self.keyrange],
cursorclass=vtgate_cursor.StreamVTGateCursor)
try:
stream_cursor.execute("select * from vt_insert_test", {})
except Exception, e:
self.fail("Communication with shard0 replica failed with error %s" %
str(e))
# vtgate begin doesn't make any back-end connections to
# vttablet so the kill and restart shouldn't have any effect.
def test_tablet_restart_begin(self):
try:
vtgate_conn = get_connection()
except Exception, e:
self.fail("Connection to vtgate failed with error %s" % str(e))
self.master_tablet.kill_vttablet()
vtgate_conn.begin()
proc = self.tablet_start(self.master_tablet, 'master')
vtgate_conn.begin()
# this succeeds only if retry_count > 0
vtgate_conn._execute(
"delete from vt_insert_test", {},
KEYSPACE_NAME, 'master',
keyranges=[self.keyrange])
vtgate_conn.commit()
def test_vtgate_restart_begin(self):
global vtgate_server, vtgate_port
try:
vtgate_conn = get_connection()
except Exception, e:
self.fail("Connection to vtgate failed with error %s" % str(e))
utils.vtgate_kill(vtgate_server)
with self.assertRaises(dbexceptions.OperationalError):
vtgate_conn.begin()
vtgate_server, vtgate_port = utils.vtgate_start(vtgate_port)
vtgate_conn = get_connection()
vtgate_conn.begin()
def test_tablet_fail_write(self):
try:
vtgate_conn = get_connection()
except Exception, e:
self.fail("Connection to shard0 master failed with error %s" % str(e))
with self.assertRaises(dbexceptions.DatabaseError):
vtgate_conn.begin()
self.master_tablet.kill_vttablet()
vtgate_conn._execute(
"delete from vt_insert_test", {},
KEYSPACE_NAME, 'master',
keyranges=[self.keyrange])
vtgate_conn.commit()
proc = self.tablet_start(self.master_tablet, 'master')
vtgate_conn.begin()
vtgate_conn._execute(
"delete from vt_insert_test", {},
KEYSPACE_NAME, 'master',
keyranges=[self.keyrange])
vtgate_conn.commit()
def test_error_on_dml(self):
try:
vtgate_conn = get_connection()
except Exception, e:
self.fail("Connection to shard0 master failed with error %s" % str(e))
vtgate_conn.begin()
keyspace_id = shard_kid_map[shard_names[
(self.shard_index+1)%len(shard_names)
]][0]
try:
vtgate_conn._execute(
"insert into vt_insert_test values(:msg, :keyspace_id)",
{"msg": "test4", "keyspace_id": keyspace_id}, KEYSPACE_NAME, 'master',
keyranges=[self.keyrange])
vtgate_conn.commit()
self.fail("Failed to raise DatabaseError exception")
except dbexceptions.DatabaseError:
if conn_class == vtgatev2:
logging.info("SHARD SESSIONS: %s", vtgate_conn.session["ShardSessions"])
transaction_id = vtgate_conn.session["ShardSessions"][0]["TransactionId"]
else:
transaction_id = vtgate_conn.session.shard_sessions[0].transaction_id
self.assertTrue(transaction_id != 0)
except Exception, e:
self.fail("Expected DatabaseError as exception, got %s" % str(e))
finally:
vtgate_conn.rollback()
def test_vtgate_fail_write(self):
global vtgate_server, vtgate_port
try:
vtgate_conn = get_connection()
except Exception, e:
self.fail("Connection to shard0 master failed with error %s" % str(e))
with self.assertRaises(dbexceptions.OperationalError):
vtgate_conn.begin()
utils.vtgate_kill(vtgate_server)
vtgate_conn._execute(
"delete from vt_insert_test", {},
KEYSPACE_NAME, 'master',
keyranges=[self.keyrange])
vtgate_conn.commit()
vtgate_server, vtgate_port = utils.vtgate_start(vtgate_port)
try:
vtgate_conn = get_connection()
except Exception, e:
self.fail("Connection to shard0 master failed with error %s" % str(e))
vtgate_conn.begin()
vtgate_conn._execute(
"delete from vt_insert_test", {},
KEYSPACE_NAME, 'master',
keyranges=[self.keyrange])
vtgate_conn.commit()
# test timeout between py client and vtgate
def test_vtgate_timeout(self):
try:
vtgate_conn = get_connection(timeout=3.0)
except Exception, e:
self.fail("Connection to vtgate failed with error %s" % str(e))
with self.assertRaises(dbexceptions.TimeoutError):
vtgate_conn._execute(
"select sleep(4) from dual", {},
KEYSPACE_NAME, 'replica',
keyranges=[self.keyrange])
try:
vtgate_conn = get_connection(timeout=3.0)
except Exception, e:
self.fail("Connection to vtgate failed with error %s" % str(e))
with self.assertRaises(dbexceptions.TimeoutError):
vtgate_conn._execute(
"select sleep(4) from dual", {},
KEYSPACE_NAME, 'master',
keyranges=[self.keyrange])
# Currently this is causing vttablet to become unreachable at
# the timeout boundary and kill any query being executed
# at the time. Prevent flakiness in other tests by sleeping
# until the query times out.
# TODO fix b/17733518
time.sleep(3)
# test timeout between vtgate and vttablet
# the timeout is set to 5 seconds
def test_tablet_timeout(self):
# this test only makes sense if there is a shorter/protective timeout
# set for vtgate-vttablet connection.
# TODO(liguo): evaluate if we want such a timeout
return
try:
vtgate_conn = get_connection()
except Exception, e:
self.fail("Connection to vtgate failed with error %s" % str(e))
with self.assertRaises(dbexceptions.DatabaseError):
vtgate_conn.begin()
vtgate_conn._execute(
"select sleep(7) from dual", {},
KEYSPACE_NAME, 'replica',
keyranges=[self.keyrange])
try:
vtgate_conn = get_connection()
except Exception, e:
self.fail("Connection to vtgate failed with error %s" % str(e))
with self.assertRaises(dbexceptions.DatabaseError):
vtgate_conn.begin()
vtgate_conn._execute(
"select sleep(7) from dual", {},
KEYSPACE_NAME, 'master',
keyranges=[self.keyrange])
# Test the case that no query sent during tablet shuts down (single tablet)
def test_restart_mysql_tablet_idle(self):
self.replica_tablet2.kill_vttablet()
try:
vtgate_conn = get_connection()
except Exception, e:
self.fail("Connection to vtgate failed with error %s" % str(e))
utils.wait_procs([self.replica_tablet.shutdown_mysql(),])
try:
vtgate_conn._execute(
"select 1 from vt_insert_test", {},
KEYSPACE_NAME, 'replica',
keyranges=[self.keyrange])
self.fail("DatabaseError should have been raised")
except Exception, e:
self.assertIsInstance(e, dbexceptions.DatabaseError)
self.assertNotIsInstance(e, dbexceptions.IntegrityError)
self.assertNotIsInstance(e, dbexceptions.OperationalError)
self.assertNotIsInstance(e, dbexceptions.TimeoutError)
utils.wait_procs([self.replica_tablet.start_mysql(),])
# force health check so tablet can become serving
utils.run_vtctl(['RunHealthCheck', self.replica_tablet.tablet_alias, 'replica'],
auto_log=True)
self.replica_tablet.wait_for_vttablet_state('SERVING')
vtgate_conn._execute(
"select 1 from vt_insert_test", {},
KEYSPACE_NAME, 'replica',
keyranges=[self.keyrange])
self.replica_tablet.kill_vttablet()
self.tablet_start(self.replica_tablet, 'replica')
self.replica_tablet.wait_for_vttablet_state('SERVING')
# TODO: expect to fail until we can detect vttablet shuts down gracefully
# while VTGate is idle.
try:
vtgate_conn._execute(
"select 1 from vt_insert_test", {},
KEYSPACE_NAME, 'replica',
keyranges=[self.keyrange])
self.fail("DatabaseError should have been raised")
except Exception, e:
self.assertIsInstance(e, dbexceptions.DatabaseError)
self.assertNotIsInstance(e, dbexceptions.IntegrityError)
self.assertNotIsInstance(e, dbexceptions.OperationalError)
self.assertNotIsInstance(e, dbexceptions.TimeoutError)
self.tablet_start(self.replica_tablet2, 'replica')
# Test the case that there are queries sent during vttablet shuts down,
# and all querys fail because there is only one vttablet.
def test_restart_mysql_tablet_queries(self):
try:
vtgate_conn = get_connection()
except Exception, e:
self.fail("Connection to vtgate failed with error %s" % str(e))
utils.wait_procs([self.replica_tablet.shutdown_mysql(),])
utils.wait_procs([self.replica_tablet2.shutdown_mysql(),])
try:
vtgate_conn._execute(
"select 1 from vt_insert_test", {},
KEYSPACE_NAME, 'replica',
keyranges=[self.keyrange])
self.fail("DatabaseError should have been raised")
except Exception, e:
self.assertIsInstance(e, dbexceptions.DatabaseError)
self.assertNotIsInstance(e, dbexceptions.IntegrityError)
self.assertNotIsInstance(e, dbexceptions.OperationalError)
self.assertNotIsInstance(e, dbexceptions.TimeoutError)
utils.wait_procs([self.replica_tablet.start_mysql(),])
utils.wait_procs([self.replica_tablet2.start_mysql(),])
# force health check so tablet can become serving
utils.run_vtctl(['RunHealthCheck', self.replica_tablet.tablet_alias, 'replica'],
auto_log=True)
utils.run_vtctl(['RunHealthCheck', self.replica_tablet2.tablet_alias, 'replica'],
auto_log=True)
self.replica_tablet.wait_for_vttablet_state('SERVING')
self.replica_tablet2.wait_for_vttablet_state('SERVING')
self.replica_tablet2.kill_vttablet()
self.replica_tablet.kill_vttablet(wait=False)
# send query while vttablet is in lameduck, should fail as no vttablet
try:
vtgate_conn._execute(
"select 1 from vt_insert_test", {},
KEYSPACE_NAME, 'replica',
keyranges=[self.keyrange])
self.fail("DatabaseError should have been raised")
except Exception, e:
self.assertIsInstance(e, dbexceptions.DatabaseError)
self.assertNotIsInstance(e, dbexceptions.IntegrityError)
self.assertNotIsInstance(e, dbexceptions.OperationalError)
self.assertNotIsInstance(e, dbexceptions.TimeoutError)
# send another query, should also fail
try:
vtgate_conn._execute(
"select 1 from vt_insert_test", {},
KEYSPACE_NAME, 'replica',
keyranges=[self.keyrange])
self.fail("DatabaseError should have been raised")
except Exception, e:
self.assertIsInstance(e, dbexceptions.DatabaseError)
self.assertNotIsInstance(e, dbexceptions.IntegrityError)
self.assertNotIsInstance(e, dbexceptions.OperationalError)
self.assertNotIsInstance(e, dbexceptions.TimeoutError)
# sleep over the lameduck period
time.sleep(0.5)
self.tablet_start(self.replica_tablet, 'replica')
self.tablet_start(self.replica_tablet2, 'replica')
self.replica_tablet.wait_for_vttablet_state('SERVING')
self.replica_tablet2.wait_for_vttablet_state('SERVING')
# as the cached vtgate-tablet conn was marked down, it should succeed
vtgate_conn._execute(
"select 1 from vt_insert_test", {},
KEYSPACE_NAME, 'replica',
keyranges=[self.keyrange])
# Test the case that there are queries sent during one vttablet shuts down,
# and all querys succeed because there is another vttablet.
def test_restart_mysql_tablet_queries_multi_tablets(self):
try:
vtgate_conn = get_connection()
except Exception, e:
self.fail("Connection to vtgate failed with error %s" % str(e))
utils.wait_procs([self.replica_tablet.shutdown_mysql(),])
# should retry on tablet2 and succeed
vtgate_conn._execute(
"select 1 from vt_insert_test", {},
KEYSPACE_NAME, 'replica',
keyranges=[self.keyrange])
utils.wait_procs([self.replica_tablet.start_mysql(),])
# force health check so tablet can become serving
utils.run_vtctl(['RunHealthCheck', self.replica_tablet.tablet_alias, 'replica'],
auto_log=True)
self.replica_tablet.wait_for_vttablet_state('SERVING')
tablet2_vars = utils.get_vars(self.replica_tablet2.port)
t2_query_count_before = int(tablet2_vars['Queries']['TotalCount'])
vtgate_conn._execute(
"select 1 from vt_insert_test", {},
KEYSPACE_NAME, 'replica',
keyranges=[self.keyrange])
tablet2_vars = utils.get_vars(self.replica_tablet2.port)