def compression_cql_enabled_with_alter_test(self):
"""
@jira_ticket CASSANDRA-8384
starting with compression disabled and enabling it
"""
cluster = self.cluster
cluster.populate(1).start(wait_for_binary_proto=True)
[node] = cluster.nodelist()
session = self.patient_cql_connection(node)
self.create_ks(session, 'ks', 1)
session.execute(
"create table start_disabled_compression_table (id uuid PRIMARY KEY ) WITH compression = {'enabled': false};"
)
meta = session.cluster.metadata.keyspaces['ks'].tables[
'start_disabled_compression_table']
self.assertEqual('false', meta.options['compression']['enabled'])
session.execute("""alter table start_disabled_compression_table
WITH compression = {
'class': 'SnappyCompressor',
'chunk_length_in_kb': 256
} AND crc_check_chance = 0.25;""")
session.cluster.refresh_schema_metadata()
meta = session.cluster.metadata.keyspaces['ks'].tables[
'start_disabled_compression_table']
self.assertEqual('org.apache.cassandra.io.compress.SnappyCompressor',
meta.options['compression']['class'])
self.assertEqual('256',
meta.options['compression']['chunk_length_in_kb'])
assert_crc_check_chance_equal(session,
"start_disabled_compression_table", 0.25)
def test_compression_cql_enabled_with_alter(self):
"""
@jira_ticket CASSANDRA-8384
starting with compression disabled and enabling it
"""
cluster = self.cluster
cluster.populate(1).start(wait_for_binary_proto=True)
[node] = cluster.nodelist()
session = self.patient_cql_connection(node)
create_ks(session, 'ks', 1)
session.execute("create table start_disabled_compression_table (id uuid PRIMARY KEY ) WITH compression = {'enabled': false};")
meta = session.cluster.metadata.keyspaces['ks'].tables['start_disabled_compression_table']
assert 'false' == meta.options['compression']['enabled']
session.execute("""alter table start_disabled_compression_table
WITH compression = {
'class': 'SnappyCompressor',
'chunk_length_in_kb': 256
} AND crc_check_chance = 0.25;""")
session.cluster.refresh_schema_metadata()
meta = session.cluster.metadata.keyspaces['ks'].tables['start_disabled_compression_table']
assert 'org.apache.cassandra.io.compress.SnappyCompressor' == meta.options['compression']['class']
assert '256' == meta.options['compression']['chunk_length_in_kb']
assert_crc_check_chance_equal(session, "start_disabled_compression_table", 0.25)
def compression_cql_disabled_with_alter_test(self):
"""
@jira_ticket CASSANDRA-8384
starting with compression enabled then disabling it
"""
cluster = self.cluster
cluster.populate(1).start(wait_for_binary_proto=True)
[node] = cluster.nodelist()
session = self.patient_cql_connection(node)
create_ks(session, "ks", 1)
session.execute(
"""
create table start_enabled_compression_table
(id uuid PRIMARY KEY )
WITH compression = {
'class': 'SnappyCompressor',
'chunk_length_in_kb': 256
}
AND crc_check_chance = 0.25;
"""
)
meta = session.cluster.metadata.keyspaces["ks"].tables["start_enabled_compression_table"]
self.assertEqual("org.apache.cassandra.io.compress.SnappyCompressor", meta.options["compression"]["class"])
self.assertEqual("256", meta.options["compression"]["chunk_length_in_kb"])
assert_crc_check_chance_equal(session, "start_enabled_compression_table", 0.25)
session.execute("alter table start_enabled_compression_table with compression = {'enabled': false};")
session.cluster.refresh_schema_metadata()
meta = session.cluster.metadata.keyspaces["ks"].tables["start_enabled_compression_table"]
self.assertEqual("false", meta.options["compression"]["enabled"])
def test_compression_cql_options(self):
"""
@jira_ticket CASSANDRA-8384
using new cql create table syntax to configure compression
"""
cluster = self.cluster
cluster.populate(1).start(wait_for_binary_proto=True)
[node] = cluster.nodelist()
session = self.patient_cql_connection(node)
create_ks(session, 'ks', 1)
session.execute("""
create table compression_opts_table
(id uuid PRIMARY KEY )
WITH compression = {
'class': 'DeflateCompressor',
'chunk_length_in_kb': 256
}
AND crc_check_chance = 0.25;
""")
session.cluster.refresh_schema_metadata()
meta = session.cluster.metadata.keyspaces['ks'].tables['compression_opts_table']
assert 'org.apache.cassandra.io.compress.DeflateCompressor' == meta.options['compression']['class']
assert '256' == meta.options['compression']['chunk_length_in_kb']
assert_crc_check_chance_equal(session, "compression_opts_table", 0.25)
warn = node.grep_log("The option crc_check_chance was deprecated as a compression option.")
assert len(warn) == 0
session.execute("""
alter table compression_opts_table
WITH compression = {
'class': 'DeflateCompressor',
'chunk_length_in_kb': 256,
'crc_check_chance': 0.6
}
""")
warn = node.grep_log("The option crc_check_chance was deprecated as a compression option.")
assert len(warn) == 1
# check metadata again after crc_check_chance_update
session.cluster.refresh_schema_metadata()
meta = session.cluster.metadata.keyspaces['ks'].tables['compression_opts_table']
assert 'org.apache.cassandra.io.compress.DeflateCompressor' == meta.options['compression']['class']
assert '256' == meta.options['compression']['chunk_length_in_kb']
assert_crc_check_chance_equal(session, "compression_opts_table", 0.6)
for n in range(0, 100):
session.execute("insert into compression_opts_table (id) values (uuid());")
sstables = self.flush('compression_opts_table')
sstable_paths = self.get_table_paths('compression_opts_table')
found = False
for sstable_path in sstable_paths:
sstable = os.path.join(sstable_path, sstables['compression_opts_table'][1])
if os.path.exists(sstable):
assert 'DEFLATE' == self._get_compression_type(sstable)
found = True
assert found
def verify_new_crc_check_chance(self, node):
session = self.patient_exclusive_cql_connection(node)
session.cluster.refresh_schema_metadata(0)
meta = session.cluster.metadata.keyspaces['ks'].tables['cf1']
assert 'org.apache.cassandra.io.compress.DeflateCompressor' == meta.options['compression']['class']
assert '256' == meta.options['compression']['chunk_length_in_kb']
assert_crc_check_chance_equal(session, "cf1", 0.6)
session.shutdown()
def verify_new_crc_check_chance(self, node):
session = self.patient_exclusive_cql_connection(node)
session.cluster.refresh_schema_metadata(0)
meta = session.cluster.metadata.keyspaces['ks'].tables['cf1']
self.assertEqual('org.apache.cassandra.io.compress.DeflateCompressor', meta.options['compression']['class'])
self.assertEqual('256', meta.options['compression']['chunk_length_in_kb'])
assert_crc_check_chance_equal(session, "cf1", 0.6)
session.shutdown()
