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offline_tools_test.py
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offline_tools_test.py
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import json
import os
import random
import re
import subprocess
import pytest
import logging
from ccmlib import common
from ccmlib.node import ToolError
from dtest import Tester, create_ks
since = pytest.mark.since
logger = logging.getLogger(__name__)
class TestOfflineTools(Tester):
@pytest.fixture(autouse=True)
def fixture_add_additional_log_patterns(self, fixture_dtest_setup):
fixture_dtest_setup.ignore_log_patterns = (
# In 2.0, we will get this error log message due to jamm not being
# in the classpath
"Unable to initialize MemoryMeter"
)
def test_sstablelevelreset(self):
"""
Insert data and call sstablelevelreset on a series of
tables. Confirm level is reset to 0 using its output.
Test a variety of possible errors and ensure response is resonable.
@since 2.1.5
@jira_ticket CASSANDRA-7614
"""
cluster = self.cluster
cluster.populate(1).start()
node1 = cluster.nodelist()[0]
# test by trying to run on nonexistent keyspace
cluster.stop(gently=False)
try:
node1.run_sstablelevelreset("keyspace1", "standard1")
except ToolError as e:
assert re.search("ColumnFamily not found: keyspace1/standard1", str(e))
# this should return exit code 1
assert e.exit_status == 1, "Expected sstablelevelreset to have a return code of 1 == but instead return code was {}".format(
e.exit_status)
# now test by generating keyspace but not flushing sstables
cluster.start()
node1.stress(['write', 'n=100', 'no-warmup', '-schema', 'replication(factor=1)',
'-rate', 'threads=8'])
cluster.stop(gently=False)
output, error, rc = node1.run_sstablelevelreset("keyspace1", "standard1")
self._check_stderr_error(error)
assert re.search("Found no sstables, did you give the correct keyspace", output)
assert rc == 0, str(rc)
# test by writing small amount of data and flushing (all sstables should be level 0)
cluster.start()
session = self.patient_cql_connection(node1)
session.execute(
"ALTER TABLE keyspace1.standard1 with compaction={'class': 'LeveledCompactionStrategy', 'sstable_size_in_mb':1};")
node1.stress(['write', 'n=1K', 'no-warmup', '-schema', 'replication(factor=1)',
'-rate', 'threads=8'])
node1.flush()
cluster.stop(gently=False)
output, error, rc = node1.run_sstablelevelreset("keyspace1", "standard1")
self._check_stderr_error(error)
assert re.search("since it is already on level 0", output)
assert rc == 0, str(rc)
# test by loading large amount data so we have multiple levels and checking all levels are 0 at end
cluster.start()
node1.stress(['write', 'n=50K', 'no-warmup', '-schema', 'replication(factor=1)',
'-rate', 'threads=8'])
cluster.flush()
node1.wait_for_compactions()
cluster.stop()
initial_levels = self.get_levels(node1.run_sstablemetadata(keyspace="keyspace1", column_families=["standard1"]))
_, error, rc = node1.run_sstablelevelreset("keyspace1", "standard1")
final_levels = self.get_levels(node1.run_sstablemetadata(keyspace="keyspace1", column_families=["standard1"]))
self._check_stderr_error(error)
assert rc == 0, str(rc)
logger.debug(initial_levels)
logger.debug(final_levels)
# let's make sure there was at least L1 before resetting levels
assert max(initial_levels) > 0
# let's check all sstables are on L0 after sstablelevelreset
assert max(final_levels) == 0
# verify that the cluster can still start after messing with the sstables
cluster.start()
def get_levels(self, data):
(out, err, rc) = data
return list(map(int, re.findall("SSTable Level: ([0-9])", out)))
def test_sstableofflinerelevel(self):
"""
Generate sstables of varying levels.
Reset sstables to L0 with sstablelevelreset
Run sstableofflinerelevel and ensure tables are promoted correctly
Also test a variety of bad inputs including nonexistent keyspace and sstables
@since 2.1.5
@jira_ticket CASSANDRA-8031
"""
cluster = self.cluster
cluster.set_configuration_options(values={'compaction_throughput_mb_per_sec': 0})
cluster.populate(1).start()
node1 = cluster.nodelist()[0]
# NOTE - As of now this does not return when it encounters Exception and causes test to hang, temporarily commented out
# test by trying to run on nonexistent keyspace
# cluster.stop(gently=False)
# output, error, rc = node1.run_sstableofflinerelevel("keyspace1", "standard1", output=True)
# assert "java.lang.IllegalArgumentException: Unknown keyspace/columnFamily keyspace1.standard1" in error
# # this should return exit code 1
# assert rc, 1 == msg=str(rc)
# cluster.start()
# now test by generating keyspace but not flushing sstables
node1.stress(['write', 'n=1', 'no-warmup',
'-schema', 'replication(factor=1)',
'-col', 'n=FIXED(10)', 'SIZE=FIXED(1024)',
'-rate', 'threads=8'])
cluster.stop(gently=False)
try:
output, error, _ = node1.run_sstableofflinerelevel("keyspace1", "standard1")
except ToolError as e:
assert re.search("No sstables to relevel for keyspace1.standard1", e.stdout)
assert e.exit_status == 1, str(e.exit_status)
# test by flushing (sstable should be level 0)
cluster.start()
session = self.patient_cql_connection(node1)
logger.debug("Altering compaction strategy to LCS")
session.execute(
"ALTER TABLE keyspace1.standard1 with compaction={'class': 'LeveledCompactionStrategy', 'sstable_size_in_mb':1, 'enabled':'false'};")
node1.stress(['write', 'n=1K', 'no-warmup',
'-schema', 'replication(factor=1)',
'-col', 'n=FIXED(10)', 'SIZE=FIXED(1024)',
'-rate', 'threads=8'])
node1.flush()
cluster.stop()
output, _, rc = node1.run_sstableofflinerelevel("keyspace1", "standard1")
assert re.search("L0=1", output)
assert rc == 0, str(rc)
cluster.start()
node1.nodetool('enableautocompaction keyspace1 standard1')
# test by loading large amount data so we have multiple sstables
# must write enough to create more than just L1 sstables
keys = 8 * cluster.data_dir_count
node1.stress(['write', 'n={0}K'.format(keys), 'no-warmup',
'-schema', 'replication(factor=1)',
'-col', 'n=FIXED(10)', 'SIZE=FIXED(1200)',
'-rate', 'threads=8'])
node1.flush()
logger.debug("Waiting for compactions to finish")
node1.wait_for_compactions()
logger.debug("Stopping node")
cluster.stop()
logger.debug("Done stopping node")
# Let's reset all sstables to L0
logger.debug("Getting initial levels")
initial_levels = list(
self.get_levels(node1.run_sstablemetadata(keyspace="keyspace1", column_families=["standard1"])))
assert [] != initial_levels
logger.debug('initial_levels:')
logger.debug(initial_levels)
logger.debug("Running sstablelevelreset")
node1.run_sstablelevelreset("keyspace1", "standard1")
logger.debug("Getting final levels")
final_levels = list(
self.get_levels(node1.run_sstablemetadata(keyspace="keyspace1", column_families=["standard1"])))
assert [] != final_levels
logger.debug('final levels:')
logger.debug(final_levels)
# let's make sure there was at least 3 levels (L0, L1 and L2)
assert max(initial_levels) > 1
# let's check all sstables are on L0 after sstablelevelreset
assert max(final_levels) == 0
# time to relevel sstables
logger.debug("Getting initial levels")
initial_levels = self.get_levels(node1.run_sstablemetadata(keyspace="keyspace1", column_families=["standard1"]))
logger.debug("Running sstableofflinerelevel")
output, error, _ = node1.run_sstableofflinerelevel("keyspace1", "standard1")
logger.debug("Getting final levels")
final_levels = self.get_levels(node1.run_sstablemetadata(keyspace="keyspace1", column_families=["standard1"]))
logger.debug(output)
logger.debug(error)
logger.debug(initial_levels)
logger.debug(final_levels)
# let's check sstables were promoted after releveling
assert max(final_levels) > 1
# verify that the cluster can still start after messing with the sstables
cluster.start()
@since('2.2')
def test_sstableverify(self):
"""
Generate sstables and test offline verification works correctly
Test on bad input: nonexistent keyspace and sstables
Test on potential situations: deleted sstables, corrupted sstables
"""
cluster = self.cluster
cluster.populate(1).start()
node1 = cluster.nodelist()[0]
options = []
# In versions >= 4.1, we need to explicitly enable force on verify as it's guarded by default
# see CASSANDRA-17017
if cluster.version() >= '4.1':
options.append('-f')
# test on nonexistent keyspace
try:
(out, err, rc) = node1.run_sstableverify("keyspace1", "standard1", options=options)
except ToolError as e:
assert "Unknown keyspace/table keyspace1.standard1" in repr(e)
assert e.exit_status == 1, str(e.exit_status)
# test on nonexistent sstables:
node1.stress(['write', 'n=100', 'no-warmup', '-schema', 'replication(factor=1)',
'-rate', 'threads=8'])
(out, err, rc) = node1.run_sstableverify("keyspace1", "standard1", options=options)
assert rc == 0, str(rc)
# only works on existing ks/cf, but we just created them
node1.nodetool("disableautocompaction")
# Generate multiple sstables and test works properly in the simple case
node1.stress(['write', 'n=100K', 'no-warmup', '-schema', 'replication(factor=1)',
'-rate', 'threads=8'])
node1.flush()
node1.stress(['write', 'n=100K', 'no-warmup', '-schema', 'replication(factor=1)',
'-rate', 'threads=8'])
node1.flush()
cluster.stop()
(out, error, rc) = node1.run_sstableverify("keyspace1", "standard1", options=options)
assert rc == 0, str(rc)
# STDOUT of the sstableverify command consists of multiple lines which may contain
# Java-normalized paths. To later compare these with Python-normalized paths, we
# map over each line of out and replace Java-normalized paths with Python equivalents.
outlines = [re.sub("(?<=path=').*(?=')",
lambda match: os.path.normcase(match.group(0)),
line) for line in out.splitlines()]
# check output is correct for each sstable
sstables = self._get_final_sstables(node1, "keyspace1", "standard1")
for sstable in sstables:
verified = False
hashcomputed = False
for line in outlines:
if sstable in line:
if re.search(re.compile(r"Verifying \w+TableReader"), line):
verified = True
elif re.search(re.compile(r"Checking computed hash of \w+TableReader"), line):
hashcomputed = True
else:
logger.debug(line)
logger.debug(verified)
logger.debug(hashcomputed)
logger.debug(sstable)
assert verified and hashcomputed
# now try intentionally corrupting an sstable to see if hash computed is different and error recognized
sstable1 = sstables[1]
with open(sstable1, 'rb') as f:
sstabledata = bytearray(f.read())
with open(sstable1, 'wb') as out:
position = random.randrange(0, len(sstabledata))
sstabledata[position] = (sstabledata[position] + 1) % 256
out.write(sstabledata)
# use verbose to get some coverage on it
try:
options.append('-v')
(out, error, rc) = node1.run_sstableverify("keyspace1", "standard1", options=options)
assert False, "sstable verify did not fail; rc={}\nout={}\nerr={}".format(str(rc), out, error)
except ToolError as e:
m = None
if cluster.version() >= '4.2':
m = re.match("(?ms).*Corrupted file: integrity check .* failed for (?P<sstable>\S+?):.*", str(e))
else:
m = re.match("(?ms).*Corrupted SSTable : (?P<sstable>\S+)", str(e))
assert m is not None, str(e)
# MacOS might use the "private" prefix.
assert os.path.normcase(m.group('sstable')).replace("/private/var/folders", "/var/folders") == sstable1
assert e.exit_status == 1, str(e.exit_status)
def test_sstableexpiredblockers(self):
cluster = self.cluster
cluster.populate(1).start()
[node1] = cluster.nodelist()
session = self.patient_cql_connection(node1)
create_ks(session, 'ks', 1)
session.execute("create table ks.cf (key int PRIMARY KEY, val int) with gc_grace_seconds=0")
# create a blocker:
session.execute("insert into ks.cf (key, val) values (1,1)")
node1.flush()
session.execute("delete from ks.cf where key = 2")
node1.flush()
session.execute("delete from ks.cf where key = 3")
node1.flush()
out, error, _ = node1.run_sstableexpiredblockers(keyspace="ks", column_family="cf")
assert "blocks 2 expired sstables from getting dropped" in out
# 4.0 removes back compatibility with pre-3.0 versions, so testing upgradesstables for
# paths from those versions to 4.0 is invalid (and can only fail). There isn't currently
# any difference between the 3.0 and 4.0 sstable format though, but when the version is
# bumped for 4.0, remove the max_version & add a case for testing a 3.0 -> 4.0 upgrade
@since('2.2', max_version='3.X')
def test_sstableupgrade(self):
"""
Test that sstableupgrade functions properly offline on a same-version Cassandra sstable, a
stdout message of "Found 0 sstables that need upgrading." should be returned.
"""
# Set up original node version to test for upgrade
cluster = self.cluster
testversion = cluster.version()
original_install_dir = cluster.get_install_dir()
logger.debug('Original install dir: {}'.format(original_install_dir))
# Set up last major version to upgrade from, assuming 2.1 branch is the oldest tested version
if testversion < '2.2':
# Upgrading from 2.0->2.1 fails due to the jamm 0.2.5->0.3.0 jar update.
# ** This will happen again next time jamm version is upgraded.
# CCM doesn't handle this upgrade correctly and results in an error when flushing 2.1:
# Error opening zip file or JAR manifest missing : /home/mshuler/git/cassandra/lib/jamm-0.2.5.jar
# The 2.1 installed jamm version is 0.3.0, but bin/cassandra.in.sh used by nodetool still has 0.2.5
# (when this is fixed in CCM issue #463, install version='github:apache/cassandra-2.0' as below)
pytest.skip(reason='Skipping 2.1 test due to jamm.jar version upgrade problem in CCM node configuration.')
elif testversion < '3.0':
logger.debug('Test version: {} - installing github:apache/cassandra-2.1'.format(testversion))
cluster.set_install_dir(version='github:apache/cassandra-2.1')
# As of 3.5, sstable format 'ma' from 3.0 is still the latest - install 2.2 to upgrade from
elif testversion < '4.0':
logger.debug('Test version: {} - installing github:apache/cassandra-2.2'.format(testversion))
cluster.set_install_dir(version='github:apache/cassandra-2.2')
# From 4.0, one can only upgrade from 3.0
else:
logger.debug('Test version: {} - installing github:apache/cassandra-3.0'.format(testversion))
cluster.set_install_dir(version='github:apache/cassandra-3.0')
# Start up last major version, write out an sstable to upgrade, and stop node
cluster.populate(1).start()
self.install_nodetool_legacy_parsing()
[node1] = cluster.nodelist()
# Check that node1 is actually what we expect
logger.debug('Downgraded install dir: {}'.format(node1.get_install_dir()))
session = self.patient_cql_connection(node1)
create_ks(session, 'ks', 1)
session.execute('create table ks.cf (key int PRIMARY KEY, val int) with gc_grace_seconds=0')
session.execute('insert into ks.cf (key, val) values (1,1)')
node1.flush()
cluster.stop()
logger.debug('Beginning ks.cf sstable: {}'.format(node1.get_sstables(keyspace='ks', column_family='cf')))
# Upgrade Cassandra to original testversion and run sstableupgrade
cluster.set_install_dir(original_install_dir)
# Check that node1 is actually upgraded
logger.debug('Upgraded to original install dir: {}'.format(node1.get_install_dir()))
# Perform a node start/stop so system tables get internally updated, otherwise we may get "Unknown keyspace/table ks.cf"
cluster.start()
self.install_nodetool_legacy_parsing()
node1.flush()
cluster.stop()
# A bit hacky, but we can only upgrade to 4.0 from 3.0, but both use the
# same sstable major format currently, so there is no upgrading to do.
# So on 4.0, we only test that sstable upgrade detect there is no
# upgrade. We'll removed that test if 4.0 introduce a major sstable
# change before it's release.
if testversion < '4.0':
(out, error, rc) = node1.run_sstableupgrade(keyspace='ks', column_family='cf')
out = str(out)
error = str(error)
logger.debug(out)
logger.debug(error)
logger.debug('Upgraded ks.cf sstable: {}'.format(node1.get_sstables(keyspace='ks', column_family='cf')))
assert 'Found 1 sstables that need upgrading.' in str(out)
# Check that sstableupgrade finds no upgrade needed on current version.
(out, error, rc) = node1.run_sstableupgrade(keyspace='ks', column_family='cf')
out = str(out)
error = str(error)
logger.debug(out)
logger.debug(error)
assert 'Found 0 sstables that need upgrading.' in out
@since('3.0')
def test_sstabledump(self):
"""
Test that sstabledump functions properly offline to output the contents of a table.
"""
cluster = self.cluster
# disable JBOD conf since the test expects exactly one SSTable to be written.
cluster.set_datadir_count(1)
cluster.populate(1).start()
[node1] = cluster.nodelist()
session = self.patient_cql_connection(node1)
create_ks(session, 'ks', 1)
session.execute('create table ks.cf (key int PRIMARY KEY, val int) with gc_grace_seconds=0')
session.execute('insert into ks.cf (key, val) values (1,1)')
# delete a partition and then insert a row to test CASSANDRA-13177
session.execute('DELETE FROM ks.cf WHERE key = 2')
session.execute('INSERT INTO ks.cf (key, val) VALUES (2, 2)')
node1.flush()
cluster.stop()
[(out, error, rc)] = node1.run_sstabledump(keyspace='ks', column_families=['cf'])
logger.debug(out)
logger.debug(error)
# Load the json output and check that it contains the inserted key=1
s = json.loads(out)
logger.debug(s)
assert len(s) == 2
# order the rows so that we have key=1 first, then key=2
row0, row1 = s
(row0, row1) = (row0, row1) if row0['partition']['key'] == ['1'] else (row1, row0)
assert row0['partition']['key'] == ['1']
assert row1['partition']['key'] == ['2']
assert row1['partition'].get('deletion_info') is not None
assert row1.get('rows') is not None
# Check that we only get the key back using the enumerate option
[(out, error, rc)] = node1.run_sstabledump(keyspace='ks', column_families=['cf'], enumerate_keys=True)
logger.debug(out)
logger.debug(error)
s = json.loads(out)
logger.debug(s)
assert len(s) == 2
dumped_keys = set(row[0] for row in s)
assert {'1', '2'} == dumped_keys
def _check_stderr_error(self, error):
acceptable = ["Max sstable size of",
"Consider adding more capacity",
"JNA link failure",
"Class JavaLaunchHelper is implemented in both",
"Picked up JAVA_TOOL_OPTIONS:",
# Warnings for backward compatibility should be logged CASSANDRA-15234
"Small commitlog volume detected",
"parameters have been deprecated. They have new names and/or value format",
"Unable to determine block size for commit log directory: null"]
if len(error) > 0:
for line in error.splitlines():
assert any([msg in line for msg in acceptable]), \
'Found line \n\n"{line}"\n\n in error\n\n{error}'.format(line=line, error=error)
def _get_final_sstables(self, node, ks, table):
"""
Return the node final sstable data files, excluding the temporary tables.
If sstableutil exists (>= 3.0) then we rely on this tool since the table
file names no longer contain tmp in their names (CASSANDRA-7066).
"""
# Get all sstable data files
allsstables = list(map(os.path.normcase, node.get_sstables(ks, table)))
# Remove any temporary files
tool_bin = node.get_tool('sstableutil')
if os.path.isfile(tool_bin):
args = [tool_bin, '--type', 'tmp', ks, table]
env = common.make_cassandra_env(node.get_install_cassandra_root(), node.get_node_cassandra_root())
p = subprocess.Popen(args, env=env, stdout=subprocess.PIPE, stderr=subprocess.PIPE)
(stdout, stderr) = p.communicate()
tmpsstables = list(map(os.path.normcase, stdout.splitlines()))
ret = list(set(allsstables) - set(tmpsstables))
else:
ret = [sstable for sstable in allsstables if "tmp" not in sstable[50:]]
return ret