Modify Dovetail logs

JIRA: DOVETAIL-450

Change-Id: I795679c9559d1bead3aecefff28d21b6567aac2f
Signed-off-by: xudan <xudan16@huawei.com>

7 files changed, 127 insertions, 108 deletions

diff --git a/dovetail/container.py b/dovetail/container.py
index 9f624f36..2108cdc1 100644
--- a/dovetail/container.py
+++ b/dovetail/container.py
@@ -42,7 +42,8 @@ class Container(object):
             return '%s:%s' % (dt_cfg.dovetail_config[type]['image_name'],
                               dt_cfg.dovetail_config[type]['docker_tag'])
         except KeyError as e:
-            cls.logger.error('There is no %s in %s config file.', e, type)
+            cls.logger.exception(
+                'There is no key {} in {} config file.'.format(e, type))
             return None
 
     # get the openrc_volume for creating the container
@@ -56,7 +57,8 @@ class Container(object):
                                      dovetail_config[type]['openrc'])
             return openrc
         else:
-            cls.logger.error("File %s is not exist", dovetail_config['openrc'])
+            cls.logger.error(
+                "File {} doesn't exist.".format(dovetail_config['openrc']))
             return None
 
     # set functest envs and TEST_DB_URL for creating functest container
@@ -113,14 +115,14 @@ class Container(object):
         pod_file = os.path.join(dovetail_config['config_dir'],
                                 dovetail_config['pod_file'])
         if not os.path.isfile(pod_file):
-            cls.logger.error("File %s doesn't exist.", pod_file)
+            cls.logger.error("File {} doesn't exist.".format(pod_file))
             return None
         key_file = os.path.join(dovetail_config['config_dir'],
                                 dovetail_config['pri_key'])
         key_container_path = dovetail_config["yardstick"]['result']['key_path']
         if not os.path.isfile(key_file):
-            cls.logger.debug("Key file %s is not found, maybe can use passwd "
-                             "method in %s to do HA test.", key_file, pod_file)
+            cls.logger.debug("Key file {} is not found, must use password in "
+                             "{} to do HA test.".format(key_file, pod_file))
             key_vol = ''
         else:
             key_vol = '-v %s:%s ' % (key_file, key_container_path)
@@ -166,11 +168,11 @@ class Container(object):
                 for host in hosts_info['hosts_info']:
                     hosts_config += " --add-host "
                     hosts_config += str(host)
-            cls.logger.info('get hosts info %s', hosts_config)
+                cls.logger.info('Get hosts info {}.'.format(hosts_config))
         except Exception:
-            cls.logger.warn('fail to get hosts info in %s/hosts.yaml, \
-                            maybe some issue with domain name resolution',
-                            hosts_config_path)
+            cls.logger.warn('Failed to get hosts info in {}/hosts.yaml, '
+                            'maybe some issues with domain name resolution.'
+                            .format(hosts_config_path))
 
         cacert_volume = ""
         https_enabled = dt_utils.check_https_enabled(cls.logger)
@@ -179,13 +181,14 @@ class Container(object):
             cls.logger.info("https enabled...")
             if cacert is not None:
                 if not os.path.isfile(cacert):
-                    cls.logger.error("env variable 'OS_CACERT' is set to %s"
-                                     "but the file does not exist", cacert)
+                    cls.logger.error("Env variable 'OS_CACERT' is set to {}"
+                                     "but the file does not exist."
+                                     .format(cacert))
                     return None
                 elif not dovetail_config['config_dir'] in cacert:
-                    cls.logger.error("credential file has to be put in %s,"
-                                     "which can be mount into container",
-                                     dovetail_config['config_dir'])
+                    cls.logger.error("Credential file has to be put in {},"
+                                     "which can be mount into container."
+                                     .format(dovetail_config['config_dir']))
                     return None
                 cacert_volume = ' -v %s:%s ' % (cacert, cacert)
             else:
@@ -227,15 +230,15 @@ class Container(object):
         cmd = "sudo docker ps -aq -f 'ancestor=%s'" % (image_id)
         ret, msg = dt_utils.exec_cmd(cmd, cls.logger)
         if msg and ret == 0:
-            cls.logger.debug('image %s has containers, skip.', image_id)
+            cls.logger.debug('Image {} has containers, skip.'.format(image_id))
             return True
         cmd = 'sudo docker rmi %s' % (image_id)
-        cls.logger.debug('remove image %s', image_id)
+        cls.logger.debug('Remove image {}.'.format(image_id))
         ret, msg = dt_utils.exec_cmd(cmd, cls.logger)
         if ret == 0:
-            cls.logger.debug('remove image %s successfully', image_id)
+            cls.logger.debug('Remove image {} successfully.'.format(image_id))
             return True
-        cls.logger.error('fail to remove image %s.', image_id)
+        cls.logger.error('Failed to remove image {}.'.format(image_id))
         return False
 
     @classmethod
@@ -243,9 +246,10 @@ class Container(object):
         cmd = 'sudo docker pull %s' % (image_name)
         ret, msg = dt_utils.exec_cmd(cmd, cls.logger)
         if ret != 0:
-            cls.logger.error('fail to pull docker image %s!', image_name)
+            cls.logger.error(
+                'Failed to pull docker image {}!'.format(image_name))
             return False
-        cls.logger.debug('success to pull docker image %s!', image_name)
+        cls.logger.debug('Success to pull docker image {}!'.format(image_name))
         return True
 
     @classmethod
@@ -254,7 +258,8 @@ class Container(object):
         if not docker_image:
             return None
         if cls.has_pull_latest_image[validate_type] is True:
-            cls.logger.debug('%s is already the newest version.', docker_image)
+            cls.logger.debug(
+                '{} is already the newest version.'.format(docker_image))
             return docker_image
         old_image_id = cls.get_image_id(docker_image)
         if not cls.pull_image_only(docker_image):
@@ -262,13 +267,14 @@ class Container(object):
         cls.has_pull_latest_image[validate_type] = True
         new_image_id = cls.get_image_id(docker_image)
         if not new_image_id:
-            cls.logger.error("fail to get the new image's id %s", docker_image)
+            cls.logger.error(
+                "Failed to get the id of image {}.".format(docker_image))
             return None
         if not old_image_id:
             return docker_image
         if new_image_id == old_image_id:
-            cls.logger.debug('image %s has no changes, no need to remove.',
-                             docker_image)
+            cls.logger.debug('Image {} has no changes, no need to remove.'
+                             .format(docker_image))
         else:
             cls.remove_image(old_image_id)
         return docker_image
diff --git a/dovetail/parser.py b/dovetail/parser.py
index fdde4f9e..1b539c85 100644
--- a/dovetail/parser.py
+++ b/dovetail/parser.py
@@ -32,15 +32,16 @@ class Parser(object):
             kwargs = {}
             for arg in dt_cfg.dovetail_config['parameters']:
                 path = eval(arg['path'])
-                cls.logger.debug('name: %s, eval path: %s ',
-                                 arg['name'], path)
+                cls.logger.debug(
+                    'name: {}, eval path: {}'.format(arg['name'], path))
                 kwargs[arg['name']] = \
                     dt_utils.get_obj_by_path(testcase.testcase, path)
 
-            cls.logger.debug('kwargs: %s', kwargs)
+            cls.logger.debug('kwargs: {}'.format(kwargs))
             cmd_lines = template.render(**kwargs)
         except Exception as e:
-            cls.logger.error('failed to parse cmd %s, exception:%s', cmd, e)
+            cls.logger.exception(
+                'Failed to parse cmd {}, exception: {}'.format(cmd, e))
             return None
 
         return cmd_lines
diff --git a/dovetail/report.py b/dovetail/report.py
index b864de98..08780b88 100644
--- a/dovetail/report.py
+++ b/dovetail/report.py
@@ -112,8 +112,8 @@ class Report(object):
                 '|'.join(dt_cfg.dovetail_config['testarea_supported']))
             area = pattern.findall(testcase['name'])
             if not area:
-                cls.logger.error("testcase %s not in supported testarea",
-                                 testcase['name'])
+                cls.logger.error("Test case {} not in supported testarea."
+                                 .format(testcase['name']))
                 return None
             area = area[0]
             testarea_scope.append(area)
@@ -170,9 +170,9 @@ class Report(object):
             with open(os.path.join(dt_cfg.dovetail_config['result_dir'],
                       report_file_name), 'w') as report_file:
                 report_file.write(report)
-            cls.logger.info('save report to %s', report_file_name)
+            cls.logger.info('Save report to {}'.format(report_file_name))
         except Exception:
-            cls.logger.error('Failed to save: %s', report_file_name)
+            cls.logger.exception('Failed to save: {}'.format(report_file_name))
 
     @classmethod
     def get_result(cls, testcase):
@@ -180,7 +180,7 @@ class Report(object):
         type = testcase.validate_type()
         crawler = CrawlerFactory.create(type)
         if crawler is None:
-            cls.logger.error('crawler is None:%s', testcase.name())
+            cls.logger.error('Crawler is None: {}'.format(testcase.name()))
             return None
 
         # if validate_testcase in cls.results[type]:
@@ -191,12 +191,12 @@ class Report(object):
         if result is not None:
             cls.results[type][validate_testcase] = result
             # testcase.script_result_acquired(True)
-            cls.logger.debug('testcase: %s -> result acquired',
-                             validate_testcase)
+            cls.logger.debug(
+                'Test case: {} -> result acquired'.format(validate_testcase))
         else:
             retry = testcase.increase_retry()
-            cls.logger.debug('testcase: %s -> result acquired retry:%d',
-                             validate_testcase, retry)
+            cls.logger.debug('Test case: {} -> result acquired retry: {}'
+                             .format(validate_testcase, retry))
         return result
 
 
@@ -206,7 +206,7 @@ class FunctestCrawler(object):
 
     def __init__(self):
         self.type = 'functest'
-        self.logger.debug('create crawler:%s', self.type)
+        self.logger.debug('Create crawler: {}'.format(self.type))
 
     @classmethod
     def create_log(cls):
@@ -234,14 +234,15 @@ class FunctestCrawler(object):
             os.path.join(dovetail_config['result_dir'],
                          dovetail_config[self.type]['result']['file_path'])
         if not os.path.exists(file_path):
-            self.logger.info('result file not found: %s', file_path)
+            self.logger.error('Result file not found: {}'.format(file_path))
             return None
         if testcase_name in dt_cfg.dovetail_config['functest_testcase']:
             complex_testcase = False
         elif testcase_name in dt_cfg.dovetail_config['functest_testsuite']:
             complex_testcase = True
         else:
-            self.logger.error("Wrong Functest test case %s.", testcase_name)
+            self.logger.error(
+                "Wrong Functest test case {}.".format(testcase_name))
             return None
         with open(file_path, 'r') as f:
             for jsonfile in f:
@@ -264,7 +265,8 @@ class FunctestCrawler(object):
                                        "errors": error_case,
                                        "skipped": skipped_case}
                 except KeyError as e:
-                    self.logger.error("Result data don't have key %s.", e)
+                    self.logger.exception(
+                        "Result data don't have key {}.".format(e))
                     return None
                 except ValueError:
                     continue
@@ -273,20 +275,20 @@ class FunctestCrawler(object):
                         'timestop': timestop, 'duration': duration,
                         'details': details}
 
-        self.logger.debug('Results: %s', str(json_results))
+        self.logger.debug('Results: {}'.format(str(json_results)))
         return json_results
 
     def crawl_from_url(self, testcase=None):
         url = "%s?case=%s&last=1" % \
             (dt_cfg.dovetail_config['report_dest'],
              testcase.validate_testcase())
-        self.logger.debug("Query to rest api: %s", url)
+        self.logger.debug("Query to rest api: {}".format(url))
         try:
             data = json.load(urllib2.urlopen(url))
             return data['results'][0]
         except Exception as e:
-            self.logger.error("Cannot read content from the url: %s, "
-                              "exception: %s", url, e)
+            self.logger.exception("Cannot read content from the url: {}, "
+                                  "exception: {}".format(url, e))
             return None
 
 
@@ -296,7 +298,7 @@ class YardstickCrawler(object):
 
     def __init__(self):
         self.type = 'yardstick'
-        self.logger.debug('create crawler:%s', self.type)
+        self.logger.debug('Create crawler: {}'.format(self.type))
 
     @classmethod
     def create_log(cls):
@@ -315,7 +317,7 @@ class YardstickCrawler(object):
         file_path = os.path.join(dt_cfg.dovetail_config['result_dir'],
                                  testcase.name() + '.out')
         if not os.path.exists(file_path):
-            self.logger.info('result file not found: %s', file_path)
+            self.logger.error('Result file not found: {}'.format(file_path))
             return None
         criteria = 'FAIL'
         with open(file_path, 'r') as f:
@@ -327,9 +329,10 @@ class YardstickCrawler(object):
                         if 1 == v:
                             criteria = 'PASS'
                     except KeyError as e:
-                        self.logger.error('pass flag not found %s', e)
+                        self.logger.exception(
+                            'Pass flag not found {}'.format(e))
         json_results = {'criteria': criteria}
-        self.logger.debug('Results: %s', str(json_results))
+        self.logger.debug('Results: {}'.format(str(json_results)))
         return json_results
 
     def crawl_from_url(self, testcase=None):
@@ -420,7 +423,7 @@ class FunctestChecker(object):
 
         testcase_passed = 'SKIP'
         for sub_testcase in sub_testcase_list:
-            self.logger.debug('check sub_testcase:%s', sub_testcase)
+            self.logger.debug('Check sub_testcase: {}'.format(sub_testcase))
             try:
                 if self.get_sub_testcase(sub_testcase,
                                          db_result['details']['errors']):
diff --git a/dovetail/run.py b/dovetail/run.py
index a8fa6470..5c0b2ddb 100755
--- a/dovetail/run.py
+++ b/dovetail/run.py
@@ -46,11 +46,11 @@ def run_test(testsuite, testarea, logger):
     duration = 0
     start_time = time.time()
     for testcase_name in testarea_list:
-        logger.info('>>[testcase]: %s', testcase_name)
+        logger.info('>>[testcase]: {}'.format(testcase_name))
         testcase = Testcase.get(testcase_name)
         if testcase is None:
-            logger.error('test case %s is not defined in testcase folder, \
-                         skipping', testcase_name)
+            logger.error('Test case {} is not defined in testcase folder, '
+                         'skipping.'.format(testcase_name))
             continue
         run_testcase = True
 
@@ -82,21 +82,23 @@ def check_tc_result(testcase, logger):
                                      testcase.name(), dovetail_result,
                                      logger):
             logger.info("Results have been pushed to database and stored "
-                        "with local file %s.", dovetail_result)
+                        "with local file {}.".format(dovetail_result))
         else:
-            logger.error("Fail to push results to database.")
+            logger.error("Failed to push results to database.")
     if dt_cfg.dovetail_config['report_dest'] == "file":
         if validate_type.lower() == 'yardstick':
             result_file = os.path.join(result_dir, testcase.name() + '.out')
         elif validate_type.lower() == 'functest':
             result_file = os.path.join(result_dir, functest_result)
         else:
-            logger.error("Don't support %s now.", validate_type)
+            logger.error("Don't support {} now.".format(validate_type))
             return
         if os.path.isfile(result_file):
-            logger.info("Results have been stored with file %s.", result_file)
+            logger.info(
+                "Results have been stored with file {}.".format(result_file))
         else:
-            logger.error("Fail to store results with file %s.", result_file)
+            logger.error(
+                "Failed to store results with file {}.".format(result_file))
         result = Report.get_result(testcase)
         Report.check_result(testcase, result)
 
@@ -107,18 +109,20 @@ def validate_input(input_dict, check_dict, logger):
     yard_tag = input_dict['yard_tag']
     valid_tag = check_dict['valid_docker_tag']
     if func_tag is not None and func_tag not in valid_tag:
-        logger.error("func_tag can't be %s, valid in %s", func_tag, valid_tag)
+        logger.error("The input option 'func_tag' can't be {}, "
+                     "valid values are {}.".format(func_tag, valid_tag))
         raise SystemExit(1)
     if yard_tag is not None and yard_tag not in valid_tag:
-        logger.error("yard_tag can't be %s, valid in %s", yard_tag, valid_tag)
+        logger.error("The input option 'yard_tag' can't be {}, "
+                     "valid values are {}.".format(yard_tag, valid_tag))
         raise SystemExit(1)
 
     # for 'report' option
     report = input_dict['report']
     if report:
         if not (report.startswith("http") or report == "file"):
-            logger.error("report can't be %s", input_dict['report'])
-            logger.info("valid report types are 'file' and 'http'")
+            logger.error("Report type can't be {}, valid types are 'file' "
+                         "and 'http'.".format(input_dict['report']))
             raise SystemExit(1)
 
 
@@ -147,7 +151,7 @@ def filter_config(input_dict, logger):
                         configs[key.upper()] = value_dict
                         break
                 except KeyError as e:
-                    logger.exception('%s lacks subsection %s', config_key, e)
+                    logger.exception('KeyError {}.'.format(e))
                     raise SystemExit(1)
     if not configs:
         return None
@@ -210,7 +214,7 @@ def env_init(logger):
     openrc = os.path.join(dt_cfg.dovetail_config['config_dir'],
                           dt_cfg.dovetail_config['env_file'])
     if not os.path.isfile(openrc):
-        logger.error("openrc file %s does not exist", openrc)
+        logger.error("File {} does not exist.".format(openrc))
     dt_utils.source_env(openrc)
 
 
@@ -226,9 +230,9 @@ def main(*args, **kwargs):
     create_logs()
     logger = dt_logger.Logger('run').getLogger()
     logger.info('================================================')
-    logger.info('Dovetail compliance: %s!', (kwargs['testsuite']))
+    logger.info('Dovetail compliance: {}!'.format(kwargs['testsuite']))
     logger.info('================================================')
-    logger.info('Build tag: %s', dt_cfg.dovetail_config['build_tag'])
+    logger.info('Build tag: {}'.format(dt_cfg.dovetail_config['build_tag']))
     env_init(logger)
     copy_userconfig_files(logger)
     dt_utils.check_docker_version(logger)
@@ -263,8 +267,8 @@ def main(*args, **kwargs):
         if dt_cfg.dovetail_config['report_dest'] == "file":
             Report.generate(testsuite_yaml, testarea, duration)
     else:
-        logger.error('invalid input commands, testsuite %s testarea %s',
-                     kwargs['testsuite'], testarea)
+        logger.error('Invalid input commands, testsuite {} testarea {}'
+                     .format(kwargs['testsuite'], testarea))
 
 
 dt_cfg.load_config_files()
diff --git a/dovetail/test_runner.py b/dovetail/test_runner.py
index 6ae410c1..b3fd7a3f 100644
--- a/dovetail/test_runner.py
+++ b/dovetail/test_runner.py
@@ -22,7 +22,7 @@ class DockerRunner(object):
 
     def __init__(self, testcase):
         self.testcase = testcase
-        self.logger.debug('create runner: %s', self.type)
+        self.logger.debug('Create runner: {}'.format(self.type))
 
     @classmethod
     def create_log(cls):
@@ -31,8 +31,8 @@ class DockerRunner(object):
     def pre_copy(self, container_id=None, dest_path=None,
                  src_file=None, exist_file=None):
         if not dest_path:
-            self.logger.error("There has no dest_path in %s config file.",
-                              self.testcase.name())
+            self.logger.error("There has no dest_path in {} config file."
+                              .format(self.testcase.name()))
             return None
         if src_file:
             self.testcase.mk_src_file()
@@ -49,8 +49,8 @@ class DockerRunner(object):
         if dt_cfg.dovetail_config['offline']:
             exist = Container.check_image_exist(self.testcase.validate_type())
             if not exist:
-                self.logger.error('%s image not exist when running offline',
-                                  self.testcase.validate_type())
+                self.logger.error("{} image doesn't exist, can't run offline."
+                                  .format(self.testcase.validate_type()))
                 return
         else:
             if not Container.pull_image(self.testcase.validate_type()):
@@ -63,15 +63,15 @@ class DockerRunner(object):
             img_file = os.path.join(dt_cfg.dovetail_config['config_dir'],
                                     img_name)
             if not os.path.isfile(img_file):
-                self.logger.error('image %s not found', img_name)
+                self.logger.error('Image {} not found.'.format(img_name))
                 return
         container_id = Container.create(self.testcase.validate_type(),
                                         self.testcase.name())
         if not container_id:
-            self.logger.error('failed to create container')
+            self.logger.error('Failed to create container.')
             return
 
-        self.logger.debug('container id:%s', container_id)
+        self.logger.debug('container id: {}'.format(container_id))
 
         dest_path = self.testcase.pre_copy_path("dest_path")
         src_file_name = self.testcase.pre_copy_path("src_file")
@@ -95,14 +95,14 @@ class DockerRunner(object):
                 self.testcase.prepared(True)
 
         if not self.testcase.prepare_cmd(self.type):
-            self.logger.error('failed to prepare testcase:%s',
-                              self.testcase.name())
+            self.logger.error(
+                'Failed to prepare test case: {}'.format(self.testcase.name()))
         else:
             for cmd in self.testcase.cmds:
                 ret, msg = Container.exec_cmd(container_id, cmd)
                 if ret != 0:
-                    self.logger.error('Failed to exec %s, ret:%d, msg:%s',
-                                      cmd, ret, msg)
+                    self.logger.error('Failed to exec {}, ret: {}, msg: {}'
+                                      .format(cmd, ret, msg))
                     break
 
         cmds = self.testcase.post_condition()
@@ -140,7 +140,7 @@ class ShellRunner(object):
         super(ShellRunner, self).__init__()
         self.testcase = testcase
         self.type = 'shell'
-        self.logger.debug('create runner:%s', self.type)
+        self.logger.debug('Create runner: {}'.format(self.type))
 
     def run(self):
         testcase_passed = 'PASS'
@@ -158,8 +158,8 @@ class ShellRunner(object):
                 self.testcase.prepared(True)
 
         if not self.testcase.prepare_cmd(self.type):
-            self.logger.error('failed to prepare cmd:%s',
-                              self.testcase.name())
+            self.logger.error(
+                'Failed to prepare cmd: {}'.format(self.testcase.name()))
         else:
             for cmd in self.testcase.cmds:
                 ret, msg = dt_utils.exec_cmd(cmd, self.logger)
@@ -176,13 +176,13 @@ class ShellRunner(object):
 
         result_filename = os.path.join(dt_cfg.dovetail_config['result_dir'],
                                        self.testcase.name()) + '.out'
-        self.logger.debug('save result:%s', result_filename)
+        self.logger.debug('Save result: {}'.format(result_filename))
         try:
             with open(result_filename, 'w') as f:
                 f.write(json.dumps(result))
         except Exception as e:
-            self.logger.exception('Failed to write result into file:%s, \
-                                   except:%s', result_filename, e)
+            self.logger.exception('Failed to write result into file: {}, '
+                                  'exception: {}'.format(result_filename, e))
 
 
 class TestRunnerFactory(object):
diff --git a/dovetail/testcase.py b/dovetail/testcase.py
index 2ceb8f20..7b012c88 100644
--- a/dovetail/testcase.py
+++ b/dovetail/testcase.py
@@ -39,7 +39,7 @@ class Testcase(object):
                 return False
             # self.logger.debug('cmd_lines:%s', cmd_lines)
             self.cmds.append(cmd_lines)
-        self.logger.debug('cmds:%s', self.cmds)
+        self.logger.debug('cmds: {}'.format(self.cmds))
         return True
 
     def prepare_cmd(self, test_type):
@@ -55,7 +55,7 @@ class Testcase(object):
             return self.parse_cmd(testcase_cmds)
         if config_cmds:
             return self.parse_cmd(config_cmds)
-        self.logger.error('testcase %s has no cmds', self.name())
+        self.logger.error('Test case {} has no cmds.'.format(self.name()))
         return False
 
     def __str__(self):
@@ -75,7 +75,8 @@ class Testcase(object):
 
     def sub_testcase_passed(self, name, passed=None):
         if passed is not None:
-            self.logger.debug('sub_testcase_passed:%s %s', name, passed)
+            self.logger.debug(
+                'sub_testcase_passed: {} {}'.format(name, passed))
             self.sub_testcase_status[name] = passed
         return self.sub_testcase_status[name]
 
@@ -111,8 +112,8 @@ class Testcase(object):
             return pre_condition
         pre_condition = self.pre_condition_cls(self.validate_type())
         if not pre_condition:
-            self.logger.debug('testcase:%s pre_condition is empty',
-                              self.name())
+            self.logger.debug(
+                'Test case: {} pre_condition is empty.'.format(self.name()))
         return pre_condition
 
     def pre_copy_path(self, key_name):
@@ -131,8 +132,8 @@ class Testcase(object):
             return post_condition
         post_condition = self.post_condition_cls(self.validate_type())
         if not post_condition:
-            self.logger.debug('testcae:%s post_condition is empty',
-                              self.name())
+            self.logger.debug(
+                'Test case: {} post_condition is empty.'.format(self.name()))
         return post_condition
 
     def mk_src_file(self):
@@ -143,12 +144,13 @@ class Testcase(object):
             with open(file_path, 'w+') as src_file:
                 if self.sub_testcase() is not None:
                     for sub_test in self.sub_testcase():
-                        self.logger.debug('save testcases %s', sub_test)
+                        self.logger.debug(
+                            'Save test cases {}'.format(sub_test))
                         src_file.write(sub_test + '\n')
-            self.logger.debug('save testcases to %s', file_path)
+            self.logger.debug('Save test cases to {}'.format(file_path))
             return file_path
         except Exception:
-            self.logger.error('Failed to save: %s', file_path)
+            self.logger.exception('Failed to save: {}'.format(file_path))
             return None
 
     def run(self):
@@ -156,7 +158,8 @@ class Testcase(object):
         try:
             runner.run()
         except AttributeError as e:
-            self.logger.exception('testcase:%s except:%s', self.name, e)
+            self.logger.exception(
+                'Test case: {} Exception: {}'.format(self.name, e))
 
     # testcase in upstream testing project
     # validate_testcase_list = {'functest': {}, 'yardstick': {}, 'shell': {}}
@@ -230,8 +233,8 @@ class Testcase(object):
                         cls.testcase_list[next(testcase_yaml.iterkeys())] = \
                             testcase
                     else:
-                        cls.logger.error('failed to create testcase: %s',
-                                         testcase_file)
+                        cls.logger.error('Failed to create test case: {}'
+                                         .format(testcase_file))
 
     @classmethod
     def get(cls, testcase_name):
diff --git a/dovetail/utils/dovetail_utils.py b/dovetail/utils/dovetail_utils.py
index aeb8ea00..8112d28d 100644
--- a/dovetail/utils/dovetail_utils.py
+++ b/dovetail/utils/dovetail_utils.py
@@ -119,7 +119,7 @@ def source_env(env_file):
 
 
 def check_https_enabled(logger=None):
-    logger.info("checking if https enabled or not...")
+    logger.debug("Checking if https enabled or not...")
     cmd = "openstack catalog show identity |awk '/public/ {print $4}'| \
         grep 'https'"
     ret, msg = exec_cmd(cmd, logger)
@@ -135,13 +135,14 @@ def get_ext_net_name(env_file, logger=None):
         if insecure.lower() == "true":
             insecure_option = ' --insecure '
         else:
-            logger.warn("env variable OS_INSECURE is %s, if https + no"
-                        "credential used, should be set as True" % insecure)
+            logger.warn("Env variable OS_INSECURE is {}, if https + no "
+                        "credential used, should be set as True."
+                        .format(insecure))
 
     cmd_check = "openstack %s network list" % insecure_option
     ret, msg = exec_cmd(cmd_check, logger)
     if ret:
-        logger.error("The credentials info in %s is invalid." % env_file)
+        logger.error("The credentials info in {} is invalid.".format(env_file))
         return None
     cmd = "openstack %s network list --long | grep 'External' | head -1 | \
            awk '{print $4}'" % insecure_option
@@ -153,7 +154,7 @@ def get_ext_net_name(env_file, logger=None):
 
 def store_db_results(db_url, build_tag, testcase, dest_file, logger):
     url = "%s?build_tag=%s-%s" % (db_url, build_tag, testcase)
-    logger.debug("Query to rest api: %s", url)
+    logger.debug("Query to rest api: {}".format(url))
     try:
         data = json.load(urllib2.urlopen(url))
         if data['results']:
@@ -163,7 +164,8 @@ def store_db_results(db_url, build_tag, testcase, dest_file, logger):
         else:
             return False
     except Exception as e:
-        logger.error("Cannot read content from %s, exception: %s", url, e)
+        logger.exception(
+            "Cannot read content from {}, exception: {}".format(url, e))
         return False
 
 
@@ -176,7 +178,7 @@ def get_duration(start_date, stop_date, logger):
         res = "%sm%ss" % (delta / 60, delta % 60)
         return res
     except ValueError as e:
-        logger.error("ValueError: %s", e)
+        logger.exception("ValueError: {}".format(e))
         return None
 
 
@@ -195,12 +197,12 @@ def check_docker_version(logger=None):
     client_ret, client_ver = \
         exec_cmd("sudo docker version -f'{{.Client.Version}}'", logger=logger)
     if server_ret == 0:
-        logger.debug("docker server version: %s", server_ver)
+        logger.debug("docker server version: {}".format(server_ver))
     if server_ret != 0 or (LooseVersion(server_ver) < LooseVersion('1.12.3')):
         logger.error("Don't support this Docker server version. "
                      "Docker server should be updated to at least 1.12.3.")
     if client_ret == 0:
-        logger.debug("docker client version: %s", client_ver)
+        logger.debug("docker client version: {}".format(client_ver))
     if client_ret != 0 or (LooseVersion(client_ver) < LooseVersion('1.12.3')):
         logger.error("Don't support this Docker client version. "
                      "Docker client should be updated to at least 1.12.3.")