def next(self):
""" get next line, adjust for year rollover and hint datetime format. """
# use readline here because next() iterator uses internal readahead buffer so seek position is wrong
line = self.filehandle.readline()
if line == '':
raise StopIteration
line = line.rstrip('\n')
le = LogEvent(line)
# hint format and nextpos from previous line
if self._datetime_format and self._datetime_nextpos != None:
ret = le.set_datetime_hint(self._datetime_format,
self._datetime_nextpos,
self.year_rollover)
if not ret:
# logevent indicates timestamp format has changed, invalidate hint info
self._datetime_format = None
self._datetime_nextpos = None
elif le.datetime:
# gather new hint info from another logevent
self._datetime_format = le.datetime_format
self._datetime_nextpos = le._datetime_nextpos
return le
def next(self):
""" get next line, adjust for year rollover and hint datetime format. """
# use readline here because next() iterator uses internal readahead buffer so seek position is wrong
line = self.filehandle.readline()
if line == '':
raise StopIteration
line = line.rstrip('\n')
le = LogEvent(line)
# hint format and nextpos from previous line
if self._datetime_format and self._datetime_nextpos != None:
ret = le.set_datetime_hint(self._datetime_format, self._datetime_nextpos, self.year_rollover)
if not ret:
# logevent indicates timestamp format has changed, invalidate hint info
self._datetime_format = None
self._datetime_nextpos = None
elif le.datetime:
# print "not hinting"
# gather new hint info from another logevent
self._datetime_format = le.datetime_format
self._datetime_nextpos = le._datetime_nextpos
return le
def test_logevent_profile_pattern_parsing():
le = LogEvent(profile_doc1)
assert (le.pattern == '{"test": 1}')
le = LogEvent(profile_doc2)
assert (le.pattern == '{"test": 1}')
le = LogEvent(profile_doc3)
assert (le.pattern == '{"test": 1}')
def test_logevent_profile_sort_pattern_parsing():
le = LogEvent(profile_doc1)
assert (le.sort_pattern == None)
le = LogEvent(profile_doc2)
assert (le.sort_pattern == '{"field": 1}')
le = LogEvent(profile_doc3)
assert (le.sort_pattern == '{"field": 1}')
def test_logevent_actual_sort_parsing():
le = LogEvent(line_pattern_26_a)
assert (le.actual_sort) is None
le = LogEvent(line_pattern_26_b)
assert (le.actual_sort) == '{ b: 1.0 }'
le = LogEvent(line_pattern_26_c)
assert (le.actual_sort) == '{ b: 1.0 }'
def test_logevent_sort_pattern_parsing():
le = LogEvent(line_pattern_26_a)
assert (le.sort_pattern) is None
le = LogEvent(line_pattern_26_b)
assert (le.sort_pattern) == '{"b": 1}'
le = LogEvent(line_pattern_26_c)
assert (le.sort_pattern) == '{"b": 1}'
def test_logevent_command_parsing():
le = LogEvent(line_command_26_a)
assert (le.command) == 'replsetgetstatus'
le = LogEvent(line_command_26_b)
assert (le.command) == 'aggregate'
le = LogEvent(line_getmore)
assert (le.command) is None
def test_logevent_actual_query_parsing():
le = LogEvent(line_pattern_26_a)
assert (le.actual_query) == '{ a: 1.0 }'
le = LogEvent(line_pattern_26_b)
assert (le.actual_query) == '{ a: 1.0 }'
le = LogEvent(line_pattern_26_c)
assert (le.actual_query) == '{ a: 1.0 }'
def test_logevent_pattern_parsing():
le = LogEvent(line_pattern_26_a)
assert (le.pattern) == '{"a": 1}'
le = LogEvent(line_pattern_26_b)
assert (le.pattern) == '{"a": 1}'
le = LogEvent(line_pattern_26_c)
assert (le.pattern) == '{"a": 1}'
def _calculate_bounds(self):
""" calculate beginning and end of logfile. """
if self._bounds_calculated:
# Assume no need to recalc bounds for lifetime of a Logfile object
return
if self.from_stdin:
return False
# we should be able to find a valid log line within max_start_lines
max_start_lines = 10
lines_checked = 0
# get start datetime
for line in self.filehandle:
logevent = LogEvent(line)
lines_checked += 1
if logevent.datetime:
self._start = logevent.datetime
self._timezone = logevent.datetime.tzinfo
self._datetime_format = logevent.datetime_format
self._datetime_nextpos = logevent._datetime_nextpos
break
if lines_checked > max_start_lines:
break
# sanity check before attempting to find end date
if (self._start is None):
raise SystemExit(
"Error: <%s> does not appear to be a supported MongoDB log file format"
% self.filehandle.name)
# get end datetime (lines are at most 10k, go back 30k at most to make sure we catch one)
self.filehandle.seek(0, 2)
self._filesize = self.filehandle.tell()
self.filehandle.seek(-min(self._filesize, 30000), 2)
for line in reversed(self.filehandle.readlines()):
logevent = LogEvent(line)
if logevent.datetime:
self._end = logevent.datetime
break
# if there was a roll-over, subtract 1 year from start time
if self._end < self._start:
self._start = self._start.replace(year=self._start.year - 1)
self._year_rollover = self._end
else:
self._year_rollover = False
# reset logfile
self.filehandle.seek(0)
self._bounds_calculated = True
return True
def test_merge_same(self):
file_length = len(self.logfile)
self.tool.run('%s %s' % (self.logfile_path, self.logfile_path))
output = sys.stdout.getvalue()
lines = output.splitlines()
assert len(lines) == 2 * file_length
for prev, next in zip(lines[:-1], lines[1:]):
prev_le = LogEvent(prev)
next_le = LogEvent(next)
if not prev_le.datetime or not next_le.datetime:
continue
assert prev_le.datetime <= next_le.datetime
def test_logevent_lazy_evaluation():
""" Check that all LogEvent variables are evaluated lazily. """
fields = ['_thread', '_operation', '_namespace', '_duration', '_numYields', '_r', '_ntoreturn', '_nreturned', '_pattern']
# before parsing all member variables need to be None
le = LogEvent(line_getmore)
for attr in fields:
assert(getattr(le, attr) == None)
# after parsing, they all need to be filled out
le.parse_all()
for attr in fields:
assert(getattr(le, attr) != None)
def test_no_timestamp_format(self):
self.tool.run('%s --timestamp-format none --timezone 5'%self.logfile_path)
output = sys.stdout.getvalue()
for line in output.splitlines():
le = LogEvent(line)
if le.datetime:
assert le.datetime_format == 'ctime-pre2.4'
def _iterate_lines(self):
""" count number of lines (can be expensive). """
self._num_lines = 0
self._restarts = []
l = 0
for l, line in enumerate(self.filehandle):
# find version string
if "version" in line:
restart = None
# differentiate between different variations
if "mongos" in line or "MongoS" in line:
self._binary = 'mongos'
elif "db version v" in line:
self._binary = 'mongod'
else:
continue
version = re.search(r'(\d\.\d\.\d+)', line)
if version:
version = version.group(1)
restart = (version, LogEvent(line))
self._restarts.append(restart)
self._num_lines = l + 1
# reset logfile
self.filehandle.seek(0)
def test_from_to_26_log(self):
logfile_26_path = os.path.join(os.path.dirname(mtools.__file__),
'test/logfiles/', 'mongod_26.log')
logfile_26 = LogFile(open(logfile_26_path, 'r'))
random_start = random_date(logfile_26.start, logfile_26.end)
random_end = random_date(random_start + timedelta(minutes=1),
logfile_26.end + timedelta(minutes=1))
print random_start, random_end
print logfile_26.start, logfile_26.end
self.tool.run(
'%s --from %s --to %s' %
(logfile_26_path, random_start.strftime("%b %d %H:%M:%S"),
random_end.strftime("%b %d %H:%M:%S")))
output = sys.stdout.getvalue()
assert len(output.splitlines()) > 0
at_least_one = False
for line in output.splitlines():
le = LogEvent(line)
if not le.datetime:
continue
at_least_one = True
assert (le.datetime >= random_start and le.datetime <= random_end)
assert at_least_one
def test_pattern(self):
# test that pattern is correctly parsed, reordered and compared to logevent pattern
self.tool.run('%s --pattern {ns:1,_id:1,host:1}' % self.logfile_path)
output = sys.stdout.getvalue()
for line in output.splitlines():
le = LogEvent(line)
assert (le.pattern == '{"_id": 1, "host": 1, "ns": 1}')
def test_slow_fast(self):
self.tool.run('%s --slow 145 --fast 500' % self.logfile_path)
output = sys.stdout.getvalue()
assert (len(output.splitlines()) > 0)
for line in output.splitlines():
le = LogEvent(line)
assert (le.duration >= 145 and le.duration <= 500)
def test_command(self):
self.tool.run('%s --command dropDatabase deleteIndexes' %
self.logfile_path)
output = sys.stdout.getvalue()
for line in output.splitlines():
le = LogEvent(line)
assert (le.command in ['dropDatabase', 'deleteIndexes'])
def test_logevent_lazy_evaluation():
""" Check that all LogEvent variables are evaluated lazily. """
fields = [
'_thread', '_operation', '_namespace', '_duration', '_numYields', '_r',
'_ntoreturn', '_nreturned', '_pattern'
]
# before parsing all member variables need to be None
le = LogEvent(line_getmore)
for attr in fields:
assert (getattr(le, attr) == None)
# after parsing, they all need to be filled out
le.parse_all()
for attr in fields:
assert (getattr(le, attr) != None)
def __iter__(self):
"""Iterate over host object. Return LogEvent obj for each document."""
self.cursor = self.coll_handle.find().sort([("ts", ASCENDING)])
for doc in self.cursor:
doc['thread'] = self.name
le = LogEvent(doc)
yield le
def test_from(self):
random_start = random_date(self.logfile.start, self.logfile.end)
self.tool.run('%s --from %s'%(self.logfile_path, random_start.strftime("%b %d %H:%M:%S")))
output = sys.stdout.getvalue()
for line in output.splitlines():
le = LogEvent(line)
if not le.datetime:
continue
assert(le.datetime >= random_start)
def test_from_iso8601_timestamp(self):
random_start = random_date(self.logfile.start, self.logfile.end)
self.tool.run('%s --from %s'%(self.logfile_path, random_start.isoformat()))
output = sys.stdout.getvalue()
for line in output.splitlines():
le = LogEvent(line)
if not le.datetime:
continue
assert(le.datetime >= random_start)
def next(self):
""" makes iterators. """
if not self.cursor:
self.cursor = self.coll_handle.find().sort([("ts", ASCENDING)])
doc = self.cursor.next()
doc['thread'] = self.name
le = LogEvent(doc)
return le
def __iter__(self):
""" iteration over ProfileCollection object will return a LogEvent object for each document. """
self.cursor = self.coll_handle.find().sort([("ts", ASCENDING)])
for doc in self.cursor:
doc['thread'] = self.name
le = LogEvent(doc)
yield le
def test_planSummary(self):
logfile_path = os.path.join(os.path.dirname(mtools.__file__),
'test/logfiles/', 'mongod_26_corrupt.log')
self.tool.run('%s --planSummary IXSCAN' % logfile_path)
output = sys.stdout.getvalue()
lines = output.splitlines()
assert (len(lines) > 0)
for line in lines:
le = LogEvent(line)
assert (le.planSummary == "IXSCAN")
def _test_thread(self,path,thread):
self.tool.run('%s --thread mongosMain'%path )
output = sys.stdout.getvalue()
for line in output.splitlines():
le = LogEvent(line)
assert(le.thread == thread)
md = re.match("^.* connection accepted from [0-9\.:]+ #(?P<conn>[0-9]+) " , le.line_str)
if md is None:
assert(le.conn is None)
else:
assert(le.conn == "conn" + md.group('conn'))
def _test_thread_conn1(self,path,thread):
self.tool.run('%s --thread conn1'%path )
output = sys.stdout.getvalue()
for line in output.splitlines():
le = LogEvent(line)
md = re.match("^.* connection accepted from [0-9\.:]+ #(?P<conn>[0-9]+) " , le.line_str)
assert(le.conn == 'conn1')
if md is None:
assert(le.thread == 'conn1')
else:
assert(le.thread == thread)
def test_from_to_stdin(self):
year = datetime.now().year
start = datetime(year, 8, 5, 20, 45)
end = datetime(year, 8, 5, 21, 01)
self.tool.is_stdin = True
self.tool.run('%s --from %s --to %s'%(self.logfile_path, start.strftime("%b %d %H:%M:%S"), end.strftime("%b %d %H:%M:%S")))
self.tool.is_stdin = False
output = sys.stdout.getvalue()
for line in output.splitlines():
le = LogEvent(line)
assert(le.datetime >= start and le.datetime <= end)
def test_logevent_value_extraction():
""" Check for correct value extraction of all fields. """
le = LogEvent(line_getmore)
assert (le.thread == 'conn9')
assert (le.operation == 'getmore')
assert (le.namespace == 'local.oplog.rs')
assert (le.duration == 144)
assert (le.numYields == 107)
assert (le.r == 85093)
assert (le.ntoreturn == 0)
assert (le.nreturned == 13551)
assert (le.pattern == '{"ts": 1}')
def _calculate_bounds(self):
""" calculate beginning and end of logfile. """
if self.from_stdin:
return False
# get start datetime
for line in self.filehandle:
logevent = LogEvent(line)
if logevent.datetime:
self._start = logevent.datetime
self._timezone = logevent.datetime.tzinfo
self._datetime_format = logevent.datetime_format
self._datetime_nextpos = logevent._datetime_nextpos
break
# get end datetime (lines are at most 10k, go back 30k at most to make sure we catch one)
self.filehandle.seek(0, 2)
self._filesize = self.filehandle.tell()
self.filehandle.seek(-min(self._filesize, 30000), 2)
for line in reversed(self.filehandle.readlines()):
logevent = LogEvent(line)
if logevent.datetime:
self._end = logevent.datetime
break
# if there was a roll-over, subtract 1 year from start time
if self._end < self._start:
self._start = self._start.replace(year=self._start.year - 1)
self._year_rollover = self._end
else:
self._year_rollover = False
# reset logfile
self.filehandle.seek(0)
return True
def test_logevent_non_log_line():
""" Check that LogEvent correctly ignores non log lines"""
le = LogEvent(line_fassert)
assert (le.thread == None)
assert (le.operation == None)
assert (le.namespace == None)
assert (le.duration == None)
assert (le.numYields == None)
assert (le.r == None)
assert (le.ntoreturn == None)
assert (le.nreturned == None)
assert (le.pattern == None)
le = LogEvent(line_empty)
assert (le.thread == None)
assert (le.operation == None)
assert (le.namespace == None)
assert (le.duration == None)
assert (le.numYields == None)
assert (le.r == None)
assert (le.ntoreturn == None)
assert (le.nreturned == None)
assert (le.pattern == None)
def test_logevent_datetime_parsing():
""" Check that all four timestamp formats are correctly parsed. """
le = LogEvent(line_ctime_pre24)
this_year = datetime.datetime.now().year
le_str = le.line_str
assert (str(le.datetime) == '%s-08-03 21:52:05+00:00' % this_year)
assert (le._datetime_format == 'ctime-pre2.4')
assert (le.line_str[4:] == le_str[4:])
# make sure all datetime objects are timezone aware
assert (le.datetime.tzinfo != None)
le = LogEvent(line_ctime)
le_str = le.line_str
assert (str(le.datetime) == '%s-08-03 21:52:05.095000+00:00' % this_year)
assert (le._datetime_format == 'ctime')
assert (le.line_str[4:] == le_str[4:])
# make sure all datetime objects are timezone aware
assert (le.datetime.tzinfo != None)
le = LogEvent(line_iso8601_utc)
le_str = le.line_str
assert (str(le.datetime) == '2013-08-03 11:52:05.095000+00:00')
assert (le._datetime_format == 'iso8601-utc')
assert (le.line_str[4:] == le_str[4:])
# make sure all datetime objects are timezone aware
assert (le.datetime.tzinfo != None)
le = LogEvent(line_iso8601_local)
le_str = le.line_str
assert (str(le.datetime) == '2013-08-03 21:52:05.095000+10:00')
assert (le._datetime_format == 'iso8601-local')
assert (le.line_str[4:] == le_str[4:])
# make sure all datetime objects are timezone aware
assert (le.datetime.tzinfo != None)
