forked from thepaul/cassandra-dtest
/
consistency_test.py
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/
consistency_test.py
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import time
from dtest import Tester, debug, ENABLE_VNODES
from assertions import assert_unavailable
from tools import (create_c1c2_table, insert_c1c2, query_c1c2, retry_till_success,
insert_columns)
class TestConsistency(Tester):
def quorum_quorum_test(self):
cluster = self.cluster
cluster.populate(3).start()
[node1, node2, node3] = cluster.nodelist()
cursor1 = self.cql_connection(node1).cursor()
self.create_ks(cursor1, 'ks', 3)
create_c1c2_table(self, cursor1)
cursor2 = self.cql_connection(node2, 'ks').cursor()
# insert and get at CL.QUORUM
for n in xrange(0, 100):
insert_c1c2(cursor1, n, "QUORUM")
query_c1c2(cursor2, n, "QUORUM")
# shutdown a node an test again
node3.stop(wait_other_notice=True)
for n in xrange(100, 200):
insert_c1c2(cursor1, n, "QUORUM")
query_c1c2(cursor2, n, "QUORUM")
# shutdown another node and test we get unavailabe exception
node2.stop(wait_other_notice=True)
assert_unavailable(insert_c1c2, cursor1, 200, "QUORUM")
def all_all_test(self):
cluster = self.cluster
cluster.populate(3).start()
[node1, node2, node3] = cluster.nodelist()
cursor1 = self.cql_connection(node1).cursor()
self.create_ks(cursor1, 'ks', 3)
create_c1c2_table(self, cursor1)
cursor2 = self.cql_connection(node2, 'ks').cursor()
# insert and get at CL.ALL
for n in xrange(0, 100):
insert_c1c2(cursor1, n, "ALL")
query_c1c2(cursor2, n, "ALL")
# shutdown one node and test we get unavailabe exception
node3.stop(wait_other_notice=True)
assert_unavailable(insert_c1c2, cursor1, 100, "ALL")
def one_one_test(self):
cluster = self.cluster
cluster.populate(3).start()
[node1, node2, node3] = cluster.nodelist()
cursor1 = self.cql_connection(node1).cursor()
self.create_ks(cursor1, 'ks', 3)
create_c1c2_table(self, cursor1)
cursor2 = self.cql_connection(node2, 'ks').cursor()
# insert and get at CL.ONE
for n in xrange(0, 100):
insert_c1c2(cursor1, n, "ONE")
retry_till_success(query_c1c2, cursor2, n, "ONE", timeout=5)
# shutdown a node an test again
node3.stop(wait_other_notice=True)
for n in xrange(100, 200):
insert_c1c2(cursor1, n, "ONE")
retry_till_success(query_c1c2, cursor2, n, "ONE", timeout=5)
# shutdown a second node an test again
node2.stop(wait_other_notice=True)
for n in xrange(200, 300):
insert_c1c2(cursor1, n, "ONE")
retry_till_success(query_c1c2, cursor1, n, "ONE", timeout=5)
def one_all_test(self):
cluster = self.cluster
cluster.populate(3).start()
[node1, node2, node3] = cluster.nodelist()
cursor1 = self.cql_connection(node1).cursor()
self.create_ks(cursor1, 'ks', 3)
create_c1c2_table(self, cursor1)
cursor2 = self.cql_connection(node2, 'ks').cursor()
# insert and get at CL.ONE
for n in xrange(0, 100):
insert_c1c2(cursor1, n, "ONE")
query_c1c2(cursor2, n, "ALL")
# shutdown a node an test again
node3.stop(wait_other_notice=True)
insert_c1c2(cursor1, 100, "ONE")
assert_unavailable(query_c1c2, cursor2, 100, "ALL")
def all_one_test(self):
cluster = self.cluster
cluster.populate(3).start()
[node1, node2, node3] = cluster.nodelist()
cursor1 = self.cql_connection(node1).cursor()
self.create_ks(cursor1, 'ks', 3)
create_c1c2_table(self, cursor1)
cursor2 = self.cql_connection(node2, 'ks').cursor()
# insert and get at CL.ONE
for n in xrange(0, 100):
insert_c1c2(cursor1, n, "ALL")
query_c1c2(cursor2, n, "ONE")
# shutdown a node an test again
node3.stop(wait_other_notice=True)
assert_unavailable(insert_c1c2, cursor1, 100, "ALL")
def short_read_test(self):
cluster = self.cluster
# Disable hinted handoff and set batch commit log so this doesn't
# interfer with the test
cluster.set_configuration_options(values={ 'hinted_handoff_enabled' : False}, batch_commitlog=True)
cluster.populate(3).start()
[node1, node2, node3] = cluster.nodelist()
time.sleep(.5)
cursor = self.cql_connection(node1).cursor()
self.create_ks(cursor, 'ks', 3)
self.create_cf(cursor, 'cf', read_repair=0.0)
# insert 9 columns in one row
insert_columns(self, cursor, 0, 9)
cursor.close()
# Deleting 3 first columns with a different node dead each time
self.stop_delete_and_restart(1, 0)
self.stop_delete_and_restart(2, 1)
self.stop_delete_and_restart(3, 2)
# Query 3 firsts columns
cursor = self.cql_connection(node1, 'ks').cursor()
if self.cluster.version() >= "1.2":
cursor.execute('SELECT c, v FROM cf WHERE key=\'k0\' LIMIT 3', consistency_level="QUORUM")
res = cursor.fetchall()
assert len(res) == 3, 'Expecting 3 values, got %d (%s)' % (len(res), str(res))
# value 0, 1 and 2 have been deleted
for i in xrange(1, 4):
assert res[i-1][1] == 'value%d' % (i+2), 'Expecting value%d, got %s (%s)' % (i+2, res[i-1][1], str(res))
else:
cursor.execute('SELECT FIRST 3 * FROM cf USING CONSISTENCY QUORUM WHERE key=k0')
assert cursor.rowcount == 1
res = cursor.fetchone()
# the key is returned
assert len(res) == 3, 'Expecting 3 values, got %d (%s)' % (len(res), str(res))
# value 0, 1 and 2 have been deleted
for i in xrange(1, 4):
assert res[i] == 'value%d' % (i+2), 'Expecting value%d, got %s (%s)' % (i+2, res[i], str(res))
def short_read_delete_test(self):
""" Test short reads ultimately leaving no columns alive [#4000] """
cluster = self.cluster
# Disable hinted handoff and set batch commit log so this doesn't
# interfer with the test
cluster.set_configuration_options(values={ 'hinted_handoff_enabled' : False}, batch_commitlog=True)
cluster.populate(2).start()
[node1, node2] = cluster.nodelist()
time.sleep(.5)
cursor = self.cql_connection(node1).cursor()
self.create_ks(cursor, 'ks', 3)
self.create_cf(cursor, 'cf', read_repair=0.0)
# insert 2 columns in one row
insert_columns(self, cursor, 0, 2)
cursor.close()
# Delete the row while first node is dead
node1.flush()
node1.stop(wait_other_notice=True)
cursor = self.cql_connection(node2, 'ks').cursor()
if self.cluster.version() >= "1.2":
cursor.execute('DELETE FROM cf WHERE key=\'k0\'', consistency_level="ONE")
else:
cursor.execute('DELETE FROM cf USING CONSISTENCY ONE WHERE key=k0')
cursor.close()
node1.start(wait_other_notice=True)
time.sleep(.5)
# Query first column
cursor = self.cql_connection(node1, 'ks').cursor()
if self.cluster.version() >= "1.2":
cursor.execute('SELECT c, v FROM cf WHERE key=\'k0\' LIMIT 1', consistency_level="QUORUM")
res = cursor.fetchone()
assert cursor.rowcount == 0, res
else:
cursor.execute('SELECT FIRST 1 * FROM cf USING CONSISTENCY QUORUM WHERE key=k0')
assert cursor.rowcount == 1
res = cursor.fetchone()
assert len(res) == 0, 'Expecting no value, got %d (%s)' % (len(res), str(res))
def hintedhandoff_test(self):
cluster = self.cluster
if ENABLE_VNODES:
tokens = cluster.balanced_tokens(2)
cluster.populate(2, tokens=tokens).start()
else:
cluster.populate(2).start()
[node1, node2] = cluster.nodelist()
cursor = self.cql_connection(node1).cursor()
self.create_ks(cursor, 'ks', 2)
create_c1c2_table(self, cursor)
node2.stop(wait_other_notice=True)
for n in xrange(0, 100):
insert_c1c2(cursor, n, "ONE")
log_mark = node1.mark_log()
node2.start()
node1.watch_log_for(["Finished hinted"], from_mark=log_mark, timeout=90)
node1.stop(wait_other_notice=True)
# Check node2 for all the keys that should have been delivered via HH
cursor = self.cql_connection(node2, keyspace='ks').cursor()
for n in xrange(0, 100):
query_c1c2(cursor, n, "ONE")
def readrepair_test(self):
cluster = self.cluster
cluster.set_configuration_options(values={ 'hinted_handoff_enabled' : False})
if ENABLE_VNODES:
tokens = cluster.balanced_tokens(2)
cluster.populate(2, tokens=tokens).start()
else:
cluster.populate(2).start()
[node1, node2] = cluster.nodelist()
cursor = self.cql_connection(node1).cursor()
self.create_ks(cursor, 'ks', 2)
create_c1c2_table(self, cursor, read_repair=1.0)
node2.stop(wait_other_notice=True)
for n in xrange(0, 10000):
insert_c1c2(cursor, n, "ONE")
node2.start(wait_other_notice=True)
time.sleep(5)
# query everything to cause RR
for n in xrange(0, 10000):
query_c1c2(cursor, n, "QUORUM")
node1.stop(wait_other_notice=True)
# Check node2 for all the keys that should have been repaired
cursor = self.cql_connection(node2, keyspace='ks').cursor()
for n in xrange(0, 10000):
query_c1c2(cursor, n, "ONE")
def short_read_reversed_test(self):
cluster = self.cluster
# Disable hinted handoff and set batch commit log so this doesn't
# interfer with the test
cluster.set_configuration_options(values={ 'hinted_handoff_enabled' : False}, batch_commitlog=True)
cluster.populate(3).start()
[node1, node2, node3] = cluster.nodelist()
time.sleep(.5)
cursor = self.cql_connection(node1).cursor()
self.create_ks(cursor, 'ks', 3)
self.create_cf(cursor, 'cf', read_repair=0.0)
# insert 9 columns in one row
insert_columns(self, cursor, 0, 9)
cursor.close()
# Deleting 3 last columns with a different node dead each time
self.stop_delete_and_restart(1, 6)
self.stop_delete_and_restart(2, 7)
self.stop_delete_and_restart(3, 8)
# Query 3 firsts columns
cursor = self.cql_connection(node1, 'ks').cursor()
if self.cluster.version() >= "1.2":
cursor.execute('SELECT c, v FROM cf WHERE key=\'k0\' ORDER BY c DESC LIMIT 3', consistency_level="QUORUM")
res = cursor.fetchall()
assert len(res) == 3, 'Expecting 3 values, got %d (%s)' % (len(res), str(res))
# value 6, 7 and 8 have been deleted
for i in xrange(0, 3):
assert res[i][1] == 'value%d' % (5-i), 'Expecting value%d, got %s (%s)' % (5-i, res[i][1], str(res))
else:
cursor.execute('SELECT FIRST 3 REVERSED * FROM cf USING CONSISTENCY QUORUM WHERE key=k0')
assert cursor.rowcount == 1
res = cursor.fetchone()
# the key is returned
assert len(res) == 3, 'Expecting 3 values, got %d (%s)' % (len(res), str(res))
# value 6, 7 and 8 have been deleted
for i in xrange(0, 3):
assert res[i] == 'value%d' % (5-i), 'Expecting value%d, got %s (%s)' % (5-i, res[i], str(res))
def quorum_available_during_failure_test(self):
CL = 'QUORUM'
RF = 3
debug("Creating a ring")
cluster = self.cluster
if ENABLE_VNODES:
tokens = cluster.balanced_tokens(3)
cluster.populate(3, tokens=tokens).start()
else:
cluster.populate(3).start()
[node1, node2, node3] = cluster.nodelist()
cluster.start()
debug("Set to talk to node 2")
cursor = self.cql_connection(node2).cursor()
self.create_ks(cursor, 'ks', RF)
create_c1c2_table(self, cursor)
debug("Generating some data")
for n in xrange(100):
insert_c1c2(cursor, n, CL)
debug("Taking down node1")
node1.stop(wait_other_notice=True)
debug("Reading back data.")
for n in xrange(100):
query_c1c2(cursor, n, CL)
def stop_delete_and_restart(self, node_number, column):
to_stop = self.cluster.nodes["node%d" % node_number]
next_node = self.cluster.nodes["node%d" % (((node_number + 1) % 3) + 1)]
to_stop.flush()
to_stop.stop(wait_other_notice=True)
cursor = self.cql_connection(next_node, 'ks').cursor()
if self.cluster.version() >= "1.2":
query = 'BEGIN BATCH '
query = query + 'DELETE FROM cf WHERE key=\'k0\' AND c=\'c%06d\'; ' % column
query = query + 'DELETE FROM cf WHERE key=\'k0\' AND c=\'c2\'; '
query = query + 'APPLY BATCH;'
cursor.execute(query, consistency_level="QUORUM")
else:
cursor.execute('DELETE c%06d, c2 FROM cf USING CONSISTENCY QUORUM WHERE key=k0' % column)
cursor.close()
to_stop.start(wait_other_notice=True)