def _process_query(self, input, parser):
self._run_stats['linesRead'] += 1
line_time = get_line_time(input)
if line_time is not None:
if ((self._run_stats['timeRange']['start'] is None)
or (self._run_stats['timeRange']['start'] > line_time)):
self._run_stats['timeRange']['start'] = line_time
if ((self._run_stats['timeRange']['end'] is None)
or (self._run_stats['timeRange']['end'] < line_time)):
self._run_stats['timeRange']['end'] = line_time
parsed = parser.parse(input)
if parsed is not None:
if parsed['supported']:
self._run_stats['linesAnalyzed'] += 1
namespace_tuple = self._tuplefy_namespace(parsed['ns'])
# If the query is for a requested namespace ....
if self._namespace_requested(parsed['ns']):
db_name = namespace_tuple[0]
collection_name = namespace_tuple[1]
query_report = None
if parsed['stats']['millis'] >= self._slowms:
try:
query_report = self.generate_query_report(
self._db_uri, parsed, db_name, collection_name)
except Exception as e:
#print traceback.print_exc()
return 1
if query_report is not None:
if query_report['recommendation'] is not None:
self._run_stats['linesWithRecommendations'] += 1
self._report.add_query_occurrence(query_report)
else:
self._run_stats['unparsableLineInfo']['unparsableLines'] += 1
self._run_stats['unparsableLineInfo'][
'unparsableLinesWithTime'] += 1
self._run_stats['unparsableLineInfo'][
'unparsedTimeMillis'] += int(parsed['stats']['millis'])
self._run_stats['unparsableLineInfo'][
'unparsedAvgTimeMillis'] = self._run_stats[
'unparsableLineInfo'][
'unparsedTimeMillis'] / self._run_stats[
'unparsableLineInfo']['unparsableLinesWithTime']
else:
self._run_stats['unparsableLineInfo']['unparsableLines'] += 1
self._run_stats['unparsableLineInfo'][
'unparsableLinesWithoutTime'] += 1
def watch_logfile(self, logfile_path):
"""Analyzes queries from the tail of a given log file"""
self._run_stats['logSource'] = logfile_path
log_parser = LogParser()
# For each new line in the logfile ...
output_time = time.time() + WATCH_DISPLAY_REFRESH_SECONDS
try:
firstLine = True
for line in self._tail_file(open(logfile_path),
WATCH_INTERVAL_SECONDS):
if firstLine:
self._run_stats['timeRange']['start'] = get_line_time(line)
self._process_query(line, log_parser)
self._run_stats['timeRange']['end'] = get_line_time(line)
if time.time() >= output_time:
self._output_aggregated_report(sys.stderr)
output_time = time.time() + WATCH_DISPLAY_REFRESH_SECONDS
except KeyboardInterrupt:
sys.stderr.write("Interrupt received\n")
finally:
self._output_aggregated_report(sys.stdout)
return 0
def watch_logfile(self, logfile_path):
"""Analyzes queries from the tail of a given log file"""
self._run_stats['logSource'] = logfile_path
log_parser = LogParser()
# For each new line in the logfile ...
output_time = time.time() + WATCH_DISPLAY_REFRESH_SECONDS
try:
firstLine = True
for line in self._tail_file(open(logfile_path),
WATCH_INTERVAL_SECONDS):
if firstLine:
self._run_stats['timeRange']['start'] = get_line_time(line)
self._process_query(line, log_parser)
self._run_stats['timeRange']['end'] = get_line_time(line)
if time.time() >= output_time:
self._output_aggregated_report(sys.stderr)
output_time = time.time() + WATCH_DISPLAY_REFRESH_SECONDS
except KeyboardInterrupt:
sys.stderr.write("Interrupt received\n")
finally:
self._output_aggregated_report(sys.stdout)
return 0
def _process_query(self, input, parser):
self._run_stats['linesRead'] += 1
line_time = get_line_time(input)
if line_time is not None:
if ((self._run_stats['timeRange']['start'] is None) or
(self._run_stats['timeRange']['start'] > line_time)):
self._run_stats['timeRange']['start'] = line_time
if ((self._run_stats['timeRange']['end'] is None) or
(self._run_stats['timeRange']['end'] < line_time)):
self._run_stats['timeRange']['end'] = line_time
parsed = parser.parse(input)
if parsed is not None:
if parsed['supported']:
self._run_stats['linesAnalyzed'] += 1
namespace_tuple = self._tuplefy_namespace(parsed['ns'])
# If the query is for a requested namespace ....
if self._namespace_requested(parsed['ns']):
db_name = namespace_tuple[0]
collection_name = namespace_tuple[1]
query_report = None
if parsed['stats']['millis'] >= self._slowms:
try:
query_report = self.generate_query_report(self._db_uri,
parsed,
db_name,
collection_name)
except Exception as e:
#print traceback.print_exc()
return 1
if query_report is not None:
if query_report['recommendation'] is not None:
self._run_stats['linesWithRecommendations'] += 1
self._report.add_query_occurrence(query_report)
else:
self._run_stats['unparsableLineInfo']['unparsableLines'] += 1
self._run_stats['unparsableLineInfo']['unparsableLinesWithTime'] += 1
self._run_stats['unparsableLineInfo']['unparsedTimeMillis'] += int(parsed['stats']['millis'])
self._run_stats['unparsableLineInfo']['unparsedAvgTimeMillis'] = self._run_stats['unparsableLineInfo']['unparsedTimeMillis'] / self._run_stats['unparsableLineInfo']['unparsableLinesWithTime']
else:
self._run_stats['unparsableLineInfo']['unparsableLines'] += 1
self._run_stats['unparsableLineInfo']['unparsableLinesWithoutTime'] += 1
