/usr/lib/python3/dist-packages/lib389/repltools.py is in python3-lib389 1.3.7.10-1ubuntu1.
This file is owned by root:root, with mode 0o644.
The actual contents of the file can be viewed below.
1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 61 62 63 64 65 66 67 68 69 70 71 72 73 74 75 76 77 78 79 80 81 82 83 84 85 86 87 88 89 90 91 92 93 94 95 96 97 98 99 100 101 102 103 104 105 106 107 108 109 110 111 112 113 114 115 116 117 118 119 120 121 122 123 124 125 126 127 128 129 130 131 132 133 134 135 136 137 138 139 140 141 142 143 144 145 146 147 148 149 150 151 152 153 154 155 156 157 158 159 160 161 162 163 164 165 166 167 168 169 170 171 172 173 174 175 176 177 178 179 180 181 182 183 184 185 186 187 188 189 190 191 192 193 194 195 196 197 198 199 200 201 202 203 204 205 206 207 208 209 210 211 212 213 214 215 216 217 218 219 220 221 222 223 224 225 226 227 228 229 230 231 232 233 234 235 236 237 238 239 240 241 242 243 244 245 246 247 248 249 250 251 252 253 254 255 256 257 258 259 260 261 262 263 264 265 266 267 268 269 270 271 272 273 274 275 276 277 278 279 280 281 282 283 284 285 286 287 288 289 290 291 292 293 294 295 296 297 | import os
import os.path
import re
import subprocess
import ldap
import logging
from lib389._constants import *
from lib389.properties import *
logging.getLogger(__name__).setLevel(logging.INFO)
log = logging.getLogger(__name__)
# Helper functions
def _alphanum_key(s):
"""Turn the string into a list of string and number parts"""
return [int(c) if c.isdigit() else c for c in
re.split('([0-9]+)', s)]
def smart_sort(str_list):
"""Sort the given list in the way that humans expect.
:param str_list: A list of strings to sort
:type str_list: list
"""
str_list.sort(key=_alphanum_key)
def _getCSNTime(inst, csn):
"""Take a CSN and get the access log timestamp in seconds
:param inst: An instance to check access log
:type inst: lib389.DirSrv
:param csn: A "csn" string that is used to find when the csn was logged in
the access log, and what time in seconds it was logged.
:type csn: str
:returns: The time is seconds that the operation was logged
"""
op_line = inst.ds_access_log.match('.*csn=%s' % csn)
if op_line:
#vals = inst.ds_access_log.parse_line(op_line[0])
return inst.ds_access_log.get_time_in_secs(op_line[0])
else:
return None
def _getCSNandTime(inst, line):
"""Take the line and find the CSN from the inst's access logs
:param inst: An instance to check access log
:type inst: lib389.DirSrv
:param line: A "RESULT" line from the access log that contains a "csn"
:type line: str
:returns: A tuple containing the "csn" value and the time in seconds when
it was logged.
"""
op_line = inst.ds_access_log.match('.*%s.*' % line)
if op_line:
vals = inst.ds_access_log.parse_line(op_line[0])
op = vals['op']
conn = vals['conn']
# Now find the result line and CSN
result_line = inst.ds_access_log.match_archive(
'.*conn=%s op=%s RESULT.*' % (conn, op))
if result_line:
vals = inst.ds_access_log.parse_line(result_line[0])
if 'csn' in vals:
ts = inst.ds_access_log.get_time_in_secs(result_line[0])
return (vals['csn'], ts)
return (None, None)
class ReplTools(object):
"""Replication tools"""
@staticmethod
def checkCSNs(dirsrv_replicas, ignoreCSNs=None):
"""Gather all the CSN strings from the access and verify all of those
CSNs exist on all the other replicas.
:param dirsrv_replicas: A list of DirSrv objects. The list must begin
with master replicas
:type dirsrv_replicas: list of lib389.DirSrv
:param ignoreCSNs: An optional string of csns to be ignored if
the caller knows that some csns can differ eg.:
'57e39e72000000020000|vucsn-57e39e76000000030000'
:type ignoreCSNs: str
:returns: True if all the CSNs are present, otherwise False
"""
csn_logs = []
csn_log_count = 0
for replica in dirsrv_replicas:
logdir = '%s*' % replica.ds_access_log._get_log_path()
outfile = '/tmp/csn' + str(csn_log_count)
csn_logs.append(outfile)
csn_log_count += 1
if ignoreCSNs:
cmd = ("grep csn= " + logdir +
" | awk '{print $10}' | egrep -v '" + ignoreCSNs + "' | sort -u > " + outfile)
else:
cmd = ("grep csn= " + logdir +
" | awk '{print $10}' | sort -u > " + outfile)
os.system(cmd)
# Set a side the first master log - we use this for our "diffing"
main_log = csn_logs[0]
csn_logs.pop(0)
# Now process the remaining csn logs
for csnlog in csn_logs:
cmd = 'diff %s %s' % (main_log, csnlog)
proc = subprocess.Popen(cmd, stdout=subprocess.PIPE, shell=True)
line = proc.stdout.readline()
if line != "" and line != "\n":
if not line.startswith("\\"):
log.fatal("We have a CSN mismatch between (%s vs %s): %s" %
(main_log, csnlog, line))
return False
return True
@staticmethod
def replConvReport(suffix, ops, replica, all_replicas):
"""Find and measure the convergence of entries from a replica, and
print a report on how fast all the "ops" replicated to the other
replicas.
:param suffix: Replicated suffix
:type suffix: str
:param ops: a list of "operations" to search for in the access logs
:type ops: list
:param replica: Instance where the entries originated
:type replica: lib389.DirSrv
:param all_replicas: Suppliers, hubs, consumers
:type all_replicas: list of lib389.DirSrv
:returns: The longest time in seconds for an operation to fully converge
"""
highest_time = 0
total_time = 0
print('Convergence Report for replica: %s (%s)' %
(replica.serverid, suffix))
print('-' * 80)
# Loop through each operation checking all the access logs
for op in ops:
csnstr, csntime = _getCSNandTime(replica, op)
if csnstr is None and csntime is None:
# Didn't find a csn, move on
continue
conv_time = []
longest_time = 0
for inst in all_replicas:
replObj = inst.replicas.get(suffix)
if replObj is None:
inst.log.warn('(%s) not setup for replication of (%s)' %
(inst.serverid, suffix))
continue
ctime = _getCSNTime(inst, csnstr)
if ctime:
role = replObj.get_role()
if role == ReplicaRole.MASTER:
txt = ' Master (%s)' % (inst.serverid)
elif role == ReplicaRole.HUB:
txt = ' Hub (%s)' % (inst.serverid)
elif role == ReplicaRole.CONSUMER:
txt = ' Consumer (%s)' % (inst.serverid)
else:
txt = '?'
ctime = ctime - csntime
conv_time.append(str(ctime) + txt)
if ctime > longest_time:
longest_time = ctime
smart_sort(conv_time)
print('\n Operation: %s\n %s' % (op, '-' * 40))
print('\n Convergence times:')
for line in conv_time:
parts = line.split(' ', 1)
print(' %8s secs - %s' % (parts[0], parts[1]))
print('\n Longest Convergence Time: ' +
str(longest_time))
if longest_time > highest_time:
highest_time = longest_time
total_time += longest_time
print('\n Summary for "{}"'.format(replica.serverid))
print(' ----------------------------------------')
print(' Highest convergence time: {} seconds'.format(highest_time))
print(' Average longest convergence time: {} seconds\n'.format(int(total_time / len(ops))))
return highest_time
@staticmethod
def replIdle(replicas, suffix=DEFAULT_SUFFIX):
"""Take a list of DirSrv Objects and check to see if all of the present
replication agreements are idle for a particular backend
:param replicas: Suppliers, hubs, consumers
:type replicas: list of lib389.DirSrv
:param suffix: Replicated suffix
:type suffix: str
:raises: LDAPError: if unable to search for the replication agreements
:returns: True if all the agreements are idle, otherwise False
"""
IDLE_MSG = ('Replica acquired successfully: Incremental ' +
'update succeeded')
STATUS_ATTR = 'nsds5replicaLastUpdateStatus'
FILTER = ('(&(nsDS5ReplicaRoot=' + suffix +
')(objectclass=nsds5replicationAgreement))')
repl_idle = True
for inst in replicas:
try:
entries = inst.search_s("cn=config",
ldap.SCOPE_SUBTREE, FILTER, [STATUS_ATTR])
if entries:
for entry in entries:
if IDLE_MSG not in entry.getValue(STATUS_ATTR):
repl_idle = False
break
if not repl_idle:
break
except ldap.LDAPError as e:
log.fatal('Failed to search the repl agmts on ' +
'%s - Error: %s' % (inst.serverid, str(e)))
assert False
return repl_idle
@staticmethod
def createReplManager(server, repl_manager_dn=None, repl_manager_pw=None):
"""Create an entry that will be used to bind as replication manager.
:param server: An instance to connect to
:type server: lib389.DirSrv
:param repl_manager_dn: DN of the bind entry. If not provided use
the default one
:type repl_manager_dn: str
:param repl_manager_pw: Password of the entry. If not provide use
the default one
:type repl_manager_pw: str
:returns: None
:raises: - KeyError - if can not find valid values of Bind DN and Pwd
- LDAPError - if we fail to add the replication manager
"""
# check the DN and PW
try:
repl_manager_dn = repl_manager_dn or \
defaultProperties[REPLICATION_BIND_DN]
repl_manager_pw = repl_manager_pw or \
defaultProperties[REPLICATION_BIND_PW]
if not repl_manager_dn or not repl_manager_pw:
raise KeyError
except KeyError:
if not repl_manager_pw:
server.log.warning("replica_createReplMgr: bind DN password " +
"not specified")
if not repl_manager_dn:
server.log.warning("replica_createReplMgr: bind DN not " +
"specified")
raise
# If the replication manager entry already exists, just return
try:
entries = server.search_s(repl_manager_dn, ldap.SCOPE_BASE,
"objectclass=*")
if entries:
# it already exist, fine
return
except ldap.NO_SUCH_OBJECT:
pass
# ok it does not exist, create it
attrs = {'nsIdleTimeout': '0',
'passwordExpirationTime': '20381010000000Z'}
server.setupBindDN(repl_manager_dn, repl_manager_pw, attrs)
|