/
system_tests_common.py
1091 lines (872 loc) · 35.3 KB
/
system_tests_common.py
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"""
This file is part of Arakoon, a distributed key-value store. Copyright
(C) 2010 Incubaid BVBA
Licensees holding a valid Incubaid license may use this file in
accordance with Incubaid's Arakoon commercial license agreement. For
more information on how to enter into this agreement, please contact
Incubaid (contact details can be found on www.arakoon.org/licensing).
Alternatively, this file may be redistributed and/or modified under
the terms of the GNU Affero General Public License version 3, as
published by the Free Software Foundation. Under this license, this
file is distributed in the hope that it will be useful, but WITHOUT
ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
FITNESS FOR A PARTICULAR PURPOSE.
See the GNU Affero General Public License for more details.
You should have received a copy of the
GNU Affero General Public License along with this program (file "COPYING").
If not, see <http://www.gnu.org/licenses/>.
"""
import sys
import logging
from nose.tools import *
from functools import wraps
import traceback
import struct
import subprocess
import signal
import os
import random
import threading
import time
import arakoon.ArakoonProtocol
from arakoon.ArakoonExceptions import *
from arakoon_ext.server import ArakoonManagement
from arakoon_ext.server import NurseryManagement
from arakoon_ext.client import ArakoonClient
test_failed = False
from Compat import X
class Config:
def __init__(self):
self.lease_duration = 2.0
self.tlog_entries_per_tlog = 1000
self.node_names = [ "sturdy_0", "sturdy_1", "sturdy_2" ]
self.cluster_id = 'sturdy'
self.key_format_str = "key_%012d"
self.value_format_str = "value_%012d"
self.data_base_dir = None
self.binary_full_path = ArakoonManagement.which_arakoon()
self.nursery_nodes = {
'nurse_0' : [ 'nurse_0_0', 'nurse_0_1', 'nurse_0_2'],
'nurse_1' : [ 'nurse_1_0', 'nurse_1_1', 'nurse_1_2'],
'nurse_2' : [ 'nurse_2_0', 'nurse_2_1', 'nurse_2_2']
}
self.nursery_cluster_ids = self.nursery_nodes.keys()
self.node_client_base_port = 7080
self.node_msg_base_port = 10000
self.nursery_keeper_id = self.nursery_cluster_ids[0]
self.node_ips = [ "127.0.0.1", "127.0.0.1", "127.0.0.1"]
CONFIG = Config()
def _getCluster( c_id = None):
if c_id is None:
c_id = CONFIG.cluster_id
mgmt = ArakoonManagement.ArakoonManagement()
cluster = mgmt.getCluster(c_id)
return cluster
class with_custom_setup ():
def __init__ (self, setup, teardown):
self.__setup = setup
self.__teardown = teardown
def __call__ (self, func ):
@wraps(func)
def decorate(*args,**kwargs):
CONFIG.data_base_dir = '%s/%s/%s' % (X.tmpDir, 'arakoon_system_tests' , func.func_name )
global test_failed
test_failed = False
fatal_ex = None
if X.fileExists( CONFIG.data_base_dir):
X.removeDirTree( CONFIG.data_base_dir )
self.__setup( CONFIG.data_base_dir )
try:
func(*args,**kwargs)
except Exception, outer :
tb = traceback.format_exc()
X.logging.fatal( tb )
fatal_ex = outer
finally:
self.__teardown( fatal_ex is None )
if fatal_ex is not None:
raise fatal_ex
return decorate
def generate_lambda( f, *args, **kwargs ):
return lambda: f( *args, **kwargs )
def dump_tlog (node_id, tlog_number) :
cluster = _getCluster()
node_home_dir = cluster.getNodeConfig(node_id ) ['home']
tlog_full_path = '/'.join ([node_home_dir, "%03d.tlog" % tlog_number])
cmd = [CONFIG.binary_full_path, "--dump-tlog", tlog_full_path]
X.logging.debug( "Dumping file %s" % tlog_full_path )
X.logging.debug("Command is : '%s'" % cmd )
output = X.subprocess.check_output(cmd)
return output
def get_arakoon_binary() :
return '/'.join([get_arakoon_bin_dir(), 'arakoon'])
def get_arakoon_bin_dir():
return '/'.join([X.appDir, "arakoon", "bin" ])
def get_tcbmgr_path ():
return '/'.join([get_arakoon_bin_dir(), "tcbmgr" ])
def get_diff_path():
return "/usr/bin/diff"
def get_node_db_file( node_id ) :
cluster = _getCluster()
node_home_dir = cluster.getNodeConfig(node_id ) ['home']
db_file = '/'.join( [node_home_dir, node_id + ".db" ])
return db_file
def dump_store( node_id ):
cluster = _getCluster()
stat = cluster.getStatusOne(node_id )
msg = "Can only dump the store of a node that is not running (status is %s)" % stat
assert_equals( stat, X.AppStatusType.HALTED, msg)
db_file = get_node_db_file ( node_id )
dump_file = db_file + ".dump"
cmd = get_tcbmgr_path() + " list -pv " + db_file
try:
dump_fd = open( dump_file, 'w' )
X.logging.debug( "Dumping store of %s to %s" % (node_id, dump_file) )
(exit,stdout,stderr) = proc.run( cmd , captureOutput=True, stdout=dump_fd )
dump_fd.close()
except:
X.logging.info("Unexpected error: %s" % sys.exc_info()[0])
return dump_file
def compare_stores( node1_id, node2_id ):
le1 = get_last_entries (node1_id)
le2 = get_last_entries (node2_id)
for (e1,e2) in zip(le1,le2):
assert_equals(e1,e2, "Different entries found (e1: %s) (e2: %s)" % (e1, e2))
return True
def get_tlog_count (node_id ):
cluster = _getCluster()
node_home_dir = cluster.getNodeConfig(node_id ) ['home']
ls = X.listFilesInDir
tlogs = ls( node_home_dir, filter="*.tlog" )
tlogs.extend(ls( node_home_dir, filter="*.tlc" ) )
tlogs.extend(ls( node_home_dir, filter="*.tlf" ) )
return len(tlogs)
def get_last_tlog_id ( node_id ):
cluster = _getCluster()
node_home_dir = cluster.getNodeConfig(node_id ) ['home']
tlog_max_id = 0
tlog_id = None
tlogs_for_node = X.listFilesInDir( node_home_dir, filter="*.tlog" )
for tlog in tlogs_for_node:
tlog = tlog [ len(node_home_dir):]
tlog = tlog.strip('/')
tlog_id = tlog.split(".")[0]
tlog_id = int( tlog_id )
if tlog_id > tlog_max_id :
tlog_max_id = tlog_id
if tlog_id is not None:
X.logging.debug("get_last_tlog_id('%s') => %s" % (node_id, tlog_id))
else :
raise Exception ("Not a single tlog found in %s" % node_home_dir )
return tlog_max_id
def get_last_i_tlog2(node_id):
""" should be way faster """
number = get_last_tlog_id(node_id)
cluster = _getCluster()
home = cluster.getNodeConfig(node_id )['home']
tlog_full_path = '/'.join([home, "%03d.tlog" % number])
f = open(tlog_full_path,'rb')
data = f.read()
f.close()
index = 0
dlen = len(data)
sn = None
while index < dlen:
sn = struct.unpack_from("q", data, index)[0]
index = index + 8
index = index + 4 # skip crc32
elen = struct.unpack_from("I", data,index)[0]
index = index + 4 + elen
return sn
def last_entry_code(node_id):
number = get_last_tlog_id(node_id)
cluster = _getCluster()
home = cluster.getNodeConfig(node_id )['home']
tlog_full_path = '/'.join([home, "%03d.tlog" % number])
f = open(tlog_full_path,'rb')
data = f.read()
f.close()
index = 0
dlen = len(data)
sn = None
while index < dlen:
sn = struct.unpack_from("q", data, index)[0]
index = index + 8
index = index + 4 # skip crc32
elen = struct.unpack_from("I", data,index)[0]
index = index + 4
typ = struct.unpack_from("I", data, index)[0]
index = index + elen
return typ
def get_last_i_tlog ( node_id ):
tlog_dump = dump_tlog ( node_id, get_last_tlog_id(node_id) )
tlog_dump_list = tlog_dump.split("\n")
tlog_first_entry = tlog_dump_list[0]
tlog_first_i = int(tlog_first_entry.split(":") [0].lstrip(" "))
if tlog_first_i % CONFIG.tlog_entries_per_tlog != 0 :
test_failed = True
raise Exception( "Problem with tlog rollover, first entry (%d) incorrect" % tlog_first_i )
tlog_last_entry = tlog_dump_list [-2]
tlog_last_i = tlog_last_entry.split(":") [0].lstrip( " 0" )
return tlog_last_i
def stopOne(name):
cluster = _getCluster()
cluster.stopOne(name)
def startOne(name):
cluster = _getCluster()
cluster.startOne(name)
def catchupOnly(name):
cluster = _getCluster()
cluster.catchupOnly(name)
def restart_all():
cluster = _getCluster()
cluster.restart()
def rotate_logs( max_logs_to_keep = 5, compress_old_files = True):
for node_name in node_names:
rotate_log( node_name, max_logs_to_keep, compress_old_files)
def send_signal ( node_name, signal ):
cluster = _getCluster()
pid = cluster._getPid(node_name)
if pid is not None:
q.system.process.kill( pid, signal )
def rotate_log(node_name, max_logs_to_keep, compress_old_files ):
cfg = getConfig(node_name)
log_dir = cfg['log_dir']
log_file = fs.joinPaths(log_dir, "%s.log" % (node_name) )
if compress_old_files:
old_log_fmt = fs.joinPaths(log_dir, "%s.log.%%d.gz" % (node_name) )
else :
old_log_fmt = fs.joinPaths(log_dir, "%s.log.%%d" % (node_name) )
tmp_log_file = log_file + ".1"
def shift_logs ( ) :
log_to_remove = old_log_fmt % (max_logs_to_keep - 1)
if fs.isFile ( log_to_remove ) :
fs.unlink(log_to_remove)
for i in range( 1, max_logs_to_keep - 1) :
j = max_logs_to_keep - 1 - i
log_to_move = old_log_fmt % j
new_log_name = old_log_fmt % (j + 1)
if fs.isFile( log_to_move ) :
fs.renameFile ( log_to_move, new_log_name )
cluster = _getCluster()
shift_logs()
if fs.isFile( log_file ):
fs.renameFile ( log_file, tmp_log_file )
if cluster.getStatusOne(node_name) == q.enumerators.AppStatusType.RUNNING:
send_signal ( node_name, signal.SIGUSR1 )
if compress_old_files:
cf = gzip.open( old_log_fmt % 1 , 'w')
orig = open(tmp_log_file, 'r' )
cf.writelines(orig)
cf.close()
orig.close()
fs.unlink(tmp_log_file)
def getConfig(name):
cluster = _getCluster()
return cluster.getNodeConfig(name)
def regenerateClientConfig( cluster_id ):
h = '%s/%s' % (X.cfgDir,'arakoonclients')
p = X.getConfig(h)
if cluster_id in p.sections():
clusterDir = p.get(cluster_id, "path")
clientCfgFile = '/'.join([clusterDir, "%s_client.cfg" % cluster_id])
if X.fileExists(clientCfgFile):
X.removeFile(clientCfgFile)
client = ArakoonClient.ArakoonClient()
cliCfg = client.getClientConfig( cluster_id )
cliCfg.generateFromServerConfig()
def whipe(name):
config = getConfig(name)
data_dir = config['home']
X.removeDirTree(data_dir)
X.createDir(data_dir)
clu = _getCluster()
clu._initialize(name)
X.logging.info("whiped %s" % name)
def get_memory_usage(node_name):
cluster = _getCluster()
pid = cluster._getPid(node_name )
if pid is None:
return 0
cmd = "ps -p %s -o vsz" % (pid)
(exit_code, stdout,stderr) = q.system.process.run( cmd, stopOnError=False)
if (exit_code != 0 ):
X.logging.error( "Coud not determine memory usage: %s" % stderr )
return 0
try:
size_str = stdout.split("\n") [1]
return int( size_str )
except Exception as ex:
X.logging.error( "Coud not determine memory usage: %s" % ex )
return 0
def collapse(name, n = 1):
config = getConfig(name)
ip = config['ip']
port = config['client_port']
rc = subprocess.call([CONFIG.binary_full_path,
'--collapse-remote',
CONFIG.cluster_id,
ip,port,str(n)])
return rc
def add_node ( i ):
ni = CONFIG.node_names[i]
X.logging.info( "Adding node %s to config", ni )
(db_dir,log_dir) = build_node_dir_names(ni)
cluster = _getCluster()
cluster.addNode (
ni,
CONFIG.node_ips[i],
clientPort = CONFIG.node_client_base_port + i,
messagingPort= CONFIG.node_msg_base_port + i,
logDir = log_dir,
logLevel = 'debug',
home = db_dir)
cluster.addLocalNode (ni )
cluster.createDirs(ni)
def start_all(clusterId = None) :
cluster = _getCluster(clusterId )
cluster.start()
time.sleep(3.0)
def start_nursery( nursery_size ):
for i in range(nursery_size):
clu = _getCluster( nursery_cluster_ids[i])
clu.start()
time.sleep(0.2)
def stop_all(clusterId = None ):
X.logging.info("stop_all")
cluster = _getCluster( clusterId )
cluster.stop()
def stop_nursery( nursery_size ):
for i in range(nursery_size):
clu = _getCluster( nursery_cluster_ids[i])
clu.stop()
def restart_nursery( nursery_size ):
stop_nursery(nursery_size)
start_nursery(nursery_size)
def restart_all(clusterId = None):
stop_all(clusterId)
start_all(clusterId)
def restart_random_node():
node_index = random.randint(0, len(node_names) - 1)
node_name = node_names [node_index ]
delayed_restart_nodes( [ node_name ] )
def delayed_restart_all_nodes() :
delayed_restart_nodes( node_names )
def delayed_restart_nodes(node_list) :
downtime = random.random() * 60.0
for node_name in node_list :
stopOne(node_name )
time.sleep( downtime )
for node_name in node_list :
startOne(node_name )
def delayed_restart_1st_node ():
delayed_restart_nodes( [ node_names[0] ] )
def delayed_restart_2nd_node ():
delayed_restart_nodes( [ node_names[1] ] )
def delayed_restart_3rd_node ():
delayed_restart_nodes( [ node_names[2] ] )
def restart_nodes_wf_sim( n ):
wf_step_duration = 0.2
for i in range (n):
stopOne(CONFIG.node_names[i] )
time.sleep( wf_step_duration )
for i in range (n):
startOne(CONFIG.node_names[i] )
time.sleep( wf_step_duration )
def getRandomString( length = 16 ) :
def getRC ():
return chr(random.randint(0,25) + ord('A'))
retVal = ""
for i in range( length ) :
retVal += getRC()
return retVal
def build_node_dir_names ( nodeName, base_dir = None ):
if base_dir is None:
base_dir = X.tmpDir
data_dir = '%s/%s' % (base_dir, nodeName)
db_dir = '%s/%s' % ( data_dir, "db")
log_dir = '%s/%s' % ( data_dir, "log")
return (db_dir, log_dir)
def setup_n_nodes_base(c_id,
node_names,
force_master,
base_dir,
base_msg_port,
base_client_port,
extra = None):
cluster = _getCluster( c_id )
print cluster
cluster.tearDown()
cluster = _getCluster( c_id )
if base_dir:
X.logging.info( "Creating data base dir %s" % base_dir )
X.createDir(base_dir)
n = len(node_names)
for i in range (n) :
nodeName = node_names[ i ]
(db_dir,log_dir) = build_node_dir_names( nodeName, base_dir )
cluster.addNode(name=nodeName,
clientPort = base_client_port+i,
messagingPort = base_msg_port+i,
logDir = log_dir,
home = db_dir )
cluster.addLocalNode(nodeName)
cluster.createDirs(nodeName)
if force_master:
X.logging.info( "Forcing master to %s", node_names[0] )
cluster.forceMaster(node_names[0] )
else :
X.logging.info( "Using master election" )
cluster.forceMaster(None )
#
#
#
if extra :
X.logging.info("EXTRA!")
config = cluster._getConfigFile()
for k,v in extra.items():
logging.info("%s -> %s", k, v)
config.add_param("global", k, v)
X.logging.info("config=\n%s", config.getContent())
f = open
config.write ()
X.logging.info( "Creating client config" )
regenerateClientConfig( c_id )
X.logging.info( "Changing log level to debug for all nodes" )
cluster.setLogLevel("debug")
lease = int(CONFIG.lease_duration)
X.logging.info( "Setting lease expiration to %d" % lease)
cluster.setMasterLease( lease )
def setup_n_nodes ( n, force_master, home_dir , extra = None):
setup_n_nodes_base(CONFIG.cluster_id,
CONFIG.node_names[0:n],
force_master,
home_dir,
CONFIG.node_msg_base_port,
CONFIG.node_client_base_port,
extra = extra)
X.logging.info( "Starting cluster" )
start_all( CONFIG.cluster_id )
X.logging.info( "Setup complete" )
def setup_3_nodes_forced_master (home_dir):
setup_n_nodes( 3, True, home_dir)
def setup_2_nodes_forced_master (home_dir):
setup_n_nodes( 2, True, home_dir)
def setup_1_node_forced_master (home_dir):
setup_n_nodes( 1, True, home_dir)
def setup_3_nodes_mini(home_dir):
extra = {'__tainted_tlog_entries_per_file':'1000'}
setup_n_nodes( 3, False, home_dir, extra)
def setup_3_nodes (home_dir) :
setup_n_nodes( 3, False, home_dir)
def setup_2_nodes (home_dir) :
setup_n_nodes( 2, False, home_dir)
def setup_1_node (home_dir):
setup_n_nodes( 1, False, home_dir )
default_setup = setup_3_nodes
def setup_nursery_n (n, home_dir):
for i in range(n):
c_id = CONFIG.nursery_cluster_ids[i]
base_dir = '/'.join([CONFIG.data_base_dir, c_id])
setup_n_nodes_base( c_id, CONFIG.nursery_nodes[c_id], False, base_dir,
CONFIG.node_msg_base_port + 3*i,
CONFIG.node_client_base_port+3*i)
clu = _getCluster(c_id)
clu.setNurseryKeeper(CONFIG.nursery_keeper_id)
X.logging.info("Starting cluster %s", c_id)
clu.start()
X.logging.info("Initializing nursery to contain %s" % CONFIG.nursery_keeper_id )
time.sleep(5.0)
nmgmt = NurseryManagement.NurseryManagement()
n = nmgmt.getNursery( CONFIG.nursery_keeper_id )
n.initialize( CONFIG.nursery_keeper_id )
logging.info("Setup complete")
def setup_nursery_2 (home_dir):
setup_nursery_n(2, home_dir)
def setup_nursery_3 (home_dir):
setup_nursery_n(3, home_dir)
def dummy_teardown(home_dir):
pass
def common_teardown( removeDirs, cluster_ids):
X.logging.info("common_teardown(%s,%s)", removeDirs, cluster_ids)
for cluster_id in cluster_ids:
X.logging.info( "Stopping arakoon daemons for cluster %s" % cluster_id )
stop_all (cluster_id )
cluster = _getCluster( cluster_id)
cluster.tearDown(removeDirs )
cluster.remove()
if removeDirs:
X.removeDirTree(CONFIG.data_base_dir )
def basic_teardown( removeDirs ):
X.logging.info("basic_teardown(%s)" % removeDirs)
for i in range( len(CONFIG.node_names) ):
destroy_ram_fs( i )
common_teardown( removeDirs, [CONFIG.cluster_id])
X.logging.info( "Teardown complete" )
def nursery_teardown( removeDirs ):
common_teardown(removeDirs, CONFIG.nursery_cluster_ids)
def get_client ( c_id = None):
if c_id is None:
c_id = CONFIG.cluster_id
ext = ArakoonClient.ArakoonClient()
c = ext.getClient(c_id)
X.logging.debug("client's config = %s", c._config)
return c
def get_nursery_client():
client = get_client (CONFIG.nursery_keeper_id)
return client
def get_nursery():
ext = NurseryManagement.NurseryManagement()
return ext.getNursery(CONFIG.nursery_keeper_id)
def iterate_n_times (n, f, startSuffix = 0, failure_max=0, valid_exceptions=None ):
client = get_client ()
failure_count = 0
client.recreate = False
if valid_exceptions is None:
valid_exceptions = []
global test_failed
for i in range ( n ) :
if test_failed :
X.logging.error( "Test marked as failed. Aborting.")
break
suffix = ( i + startSuffix )
key = CONFIG.key_format_str % suffix
value = CONFIG.value_format_str % suffix
try:
f(client, key, value )
except Exception, ex:
failure_count += 1
fatal = True
for valid_ex in valid_exceptions:
if isinstance(ex, valid_ex ) :
fatal = False
if failure_count > failure_max or fatal :
client._dropConnections()
test_failed = True
X.logging.critical( "!!! Failing test")
tb = traceback.format_exc()
X.logging.critical( tb )
raise
if client.recreate :
client._dropConnections()
client = get_client()
client.recreate = False
client._dropConnections()
def create_and_start_thread (f ):
class MyThread ( threading.Thread ):
def __init__ (self, f, *args, **kwargs ):
threading.Thread.__init__ ( self )
self._f = f
self._args = args
self._kwargs = kwargs
def run (self):
try:
self._f ( *(self._args), **(self._kwargs) )
except Exception, ex:
global test_failed
X.logging.critical("!!! Failing test")
tb = traceback.format_exc()
X.logging.critical( tb )
test_failed = True
raise
t = MyThread( f )
t.start ()
return t
def create_and_start_thread_list ( f_list ):
return map ( create_and_start_thread, f_list )
def create_and_wait_for_thread_list ( f_list , timeout=None, assert_failure=True ):
class SyncThread ( threading.Thread ):
def __init__ (self, thr_list):
threading.Thread.__init__ ( self )
self.thr_list = thr_list
def run (self):
for thr in thr_list :
thr.join()
global test_failed
test_failed = False
thr_list = create_and_start_thread_list ( f_list )
sync_thr = SyncThread ( thr_list )
sync_thr.start()
sync_thr.join( timeout )
assert_false( sync_thr.isAlive() )
if assert_failure :
assert_false( test_failed )
def create_and_wait_for_threads ( thr_cnt, iter_cnt, f, timeout=None ):
f_list = []
for i in range( thr_cnt ) :
g = lambda : iterate_n_times(iter_cnt, f )
f_list.append( g )
create_and_wait_for_thread_list( f_list, timeout)
def mindless_simple_set( client, key, value):
try:
client.set( key, value)
except Exception, ex:
logging.info( "Error while setting => %s: %s" , ex.__class__.__name__, ex)
def simple_set(client, key, value):
client.set( key, value )
def assert_get( client, key, value):
assert_equals( client.get(key), value )
def set_get_and_delete( client, key, value):
client.set( key, value )
assert_equals( client.get(key), value )
try:
client.delete( key )
except ArakoonNotFound as ex:
logging.debug( "Caught ArakoonNotFound on delete. Ignoring" )
assert_raises ( ArakoonNotFound, client.get, key )
def mindless_retrying_set_get_and_delete( client, key, value ):
def validate_ex ( ex, tryCnt ):
return True
generic_retrying_set_get_and_delete( client, key, value, validate_ex )
def generic_retrying_set_get_and_delete( client, key, value, is_valid_ex ):
start = time.time()
failed = True
tryCnt = 0
global test_failed
last_ex = None
while ( failed and time.time() < start + 5.0 ) :
try :
tryCnt += 1
client.set( key,value )
assert_equals( client.get(key), value )
try:
client.delete( key )
except ArakoonNotFound:
X.logging.debug("Master switch while deleting key")
# assert_raises ( ArakoonNotFound, client.get, key )
failed = False
last_ex = None
except (ArakoonNoMaster, ArakoonNodeNotMaster), ex:
if isinstance(ex, ArakoonNoMaster) :
X.logging.debug("No master in cluster. Recreating client.")
else :
X.logging.debug("Old master is not yet ready to succumb. Recreating client")
# Make sure we propagate the need to recreate the client
# (or the next iteration we are back to using the old one)
client.recreate = True
client._dropConnections()
client = get_client()
except Exception, ex:
X.logging.debug( "Caught an exception => %s: %s", ex.__class__.__name__, ex )
time.sleep( 0.5 )
last_ex = ex
if not is_valid_ex( ex, tryCnt ) :
# test_failed = True
X.logging.debug( "Re-raising exception => %s: %s", ex.__class__.__name__, ex )
raise
if last_ex is not None:
raise last_ex
def retrying_set_get_and_delete( client, key, value ):
def validate_ex ( ex, tryCnt ):
ex_msg = "%s" % ex
validEx = False
validEx = validEx or isinstance( ex, ArakoonSockNotReadable )
validEx = validEx or isinstance( ex, ArakoonSockReadNoBytes )
validEx = validEx or isinstance( ex, ArakoonSockRecvError )
validEx = validEx or isinstance( ex, ArakoonSockRecvClosed )
validEx = validEx or isinstance( ex, ArakoonSockSendError )
validEx = validEx or isinstance( ex, ArakoonNotConnected )
validEx = validEx or isinstance( ex, ArakoonNodeNotMaster )
if validEx:
X.logging.debug( "Ignoring exception: %s", ex_msg )
return validEx
generic_retrying_set_get_and_delete( client, key, value, validate_ex)
def add_node_scenario ( node_to_add_index ):
X.logging.info("(1) some sets")
iterate_n_times( 100, simple_set )
X.logging.info("(2) stopping & adding node")
stop_all()
add_node( node_to_add_index )
regenerateClientConfig(CONFIG.cluster_id)
X.logging.info("(3) starting all nodes")
start_all()
X.logging.info("(4) some asserts")
iterate_n_times( 100, assert_get )
X.logging.info("(5) some crud")
iterate_n_times( 100, set_get_and_delete, 100)
def assert_key_value_list( start_suffix, list_size, list ):
assert_equals( len(list), list_size )
for i in range( list_size ) :
suffix = start_suffix + i
key = CONFIG.key_format_str % (suffix )
value = CONFIG.value_format_str % (suffix )
assert_equals ( (key,value) , list [i] )
def get_last_entries (node_id, start_i=0):
config = getConfig(node_id)
ip = config["ip"]
port = config["client_port"]
cmd = [CONFIG.binary_full_path, "--last-entries", CONFIG.cluster_id, ip, port, str(start_i)]
X.logging.debug( "Getting last entries for %s" % node_id )
X.logging.debug("Command is : '%s'" % cmd )
output = X.subprocess.check_output(cmd)
result = []
cur_i = start_i - 1
cur_updates = []
for l in output.splitlines():
if l == '':
continue
parts = l.split(":")
li = parts[0]
lup = ":".join(parts[1:])
if li == cur_i :
cur_updates.append(lup)
else:
if cur_updates != []:
result.append( (cur_i, cur_updates) )
cur_i = li
cur_updates = [lup]
if cur_updates != [] :
result.append( (cur_i, cur_updates) )
return result
def assert_last_i_in_sync ( node1, node2 ):
le1 = get_last_entries (node1)
li1, lus1 = le1[-1]
le2 = get_last_entries (node2, int(li1) - 10 )
li2, lus2 = le2[-1]
diff = abs( int(li1) - int(li2) )
assert_true (diff <= 1, "Store i's differ too much i1: %s, i2: %s" % (li1, li2))
def assert_running_nodes ( n ):
cluster = _getCluster()
status = cluster.getStatus()
ok = [k for k in status.keys() if status[k] == X.AppStatusType.RUNNING]
nr = len(ok)
assert_equals (nr, n, "Number of expected running nodes missmatch: %s <> %s (STATUS=%s)" % (nr,n,status))
def assert_value_list ( start_suffix, list_size, list ) :
assert_list( CONFIG.value_format_str, start_suffix, list_size, list )
def assert_key_list ( start_suffix, list_size, list ) :
assert_list( CONFIG.key_format_str, start_suffix, list_size, list )
def assert_list ( format_str, start_suffix, list_size, list ) :
assert_equals( len(list), list_size )
for i in range( list_size ) :
elem = format_str % (start_suffix + i)
assert_equals ( elem , list [i] )
def dir_to_fs_file_name (dir_name):
return dir_name.replace( "/", "_")
def destroy_ram_fs( node_index ) :
nn = CONFIG.node_names[node_index]
(mount_target,log_dir) = build_node_dir_names(nn)
try :
cmd = "umount %s" % mount_target
run_cmd ( cmd )
except :
pass
def delayed_master_restart_loop ( iter_cnt, delay ) :
for i in range( iter_cnt ):
global test_failed
try:
time.sleep( delay )
cli = get_client()
cli.set('delayed_master_restart_loop','delayed_master_restart_loop')
master_id = cli.whoMaster()
cli._dropConnections()
stopOne( master_id )
startOne( master_id )
except:
X.logging.critical("!!!! Failing test. Exception in restart loop.")
test_failed = True
raise
def restart_loop( node_index, iter_cnt, int_start_stop, int_stop_start ) :
for i in range (iter_cnt) :
node = CONFIG.node_names[node_index]
time.sleep( 1.0 * int_start_stop )
stopOne(node)
time.sleep( 1.0 * int_stop_start )
startOne(node)
def restart_single_slave_scenario( restart_cnt, set_cnt ) :
start_stop_wait = 3.0
stop_start_wait = 1.0
slave_loop = lambda : restart_loop( 1, restart_cnt, start_stop_wait, stop_start_wait )
set_loop = lambda : iterate_n_times( set_cnt, set_get_and_delete )
create_and_wait_for_thread_list( [slave_loop, set_loop] )
# Give the slave some time to catch up
time.sleep( 5.0 )
assert_last_i_in_sync ( CONFIG.node_names[0], CONFIG.node_names[1] )
compare_stores( CONFIG.node_names[0], CONFIG.node_names[1] )
def get_entries_per_tlog():
cmd = [CONFIG.binary_full_path, "--version"]
stdout = X.subprocess.check_process(cmd)
return int(stdout.split('\n')[-2].split(':')[1])
def prefix_scenario( start_suffix ):
iterate_n_times( 100, simple_set, startSuffix = start_suffix )
test_key_pref = CONFIG.key_format_str % ( start_suffix + 90 )
test_key_pref = test_key_pref [:-1]
client = get_client()
key_list = client.prefix( test_key_pref )
X.logging.debug("key_list = %s", key_list)
assert_key_list ( start_suffix + 90, 10, key_list)
key_list = client.prefix( test_key_pref, 7 )
X.logging.debug("key_list = %s", key_list)
assert_key_list ( start_suffix + 90, 7, key_list)
client._dropConnections ()
def range_scenario ( start_suffix ):
iterate_n_times( 100, simple_set, startSuffix = start_suffix )
client = get_client()
start_key = CONFIG.key_format_str % (start_suffix )
end_key = CONFIG.key_format_str % (start_suffix + 100 )