def record_queue_size():
"""Records the rabbitmq size in statsd"""
statsd.gauge('rabbitmq.size', rabbitmq_queue_size())
def record_queue_size():
"""Records the rabbitmq size in statsd"""
statsd.gauge('rabbitmq.size', rabbitmq_queue_size())
def monitor(request):
"""View for services monitor."""
status = {}
# Note: To add a new component to the services monitor, do your
# testing and then add a name -> list of output tuples map to
# status.
# Check memcached.
memcache_results = []
try:
for cache_name, cache_props in settings.CACHES.items():
result = True
backend = cache_props['BACKEND']
location = cache_props['LOCATION']
# LOCATION can be a string or a list of strings
if isinstance(location, basestring):
location = location.split(';')
if 'memcache' in backend:
for loc in location:
# TODO: this doesn't handle unix: variant
ip, port = loc.split(':')
result = test_memcached(ip, int(port))
memcache_results.append(
(INFO, '%s:%s %s' % (ip, port, result)))
if not memcache_results:
memcache_results.append((ERROR, 'memcache is not configured.'))
elif len(memcache_results) < 2:
memcache_results.append(
(ERROR, ('You should have at least 2 memcache servers. '
'You have %s.' % len(memcache_results))))
else:
memcache_results.append((INFO, 'memcached servers look good.'))
except Exception as exc:
memcache_results.append(
(ERROR, 'Exception while looking at memcached: %s' % str(exc)))
status['memcached'] = memcache_results
# Check Libraries and versions
libraries_results = []
try:
Image.new('RGB', (16, 16)).save(StringIO.StringIO(), 'JPEG')
libraries_results.append((INFO, 'PIL+JPEG: Got it!'))
except Exception as exc:
libraries_results.append(
(ERROR,
'PIL+JPEG: Probably missing: '
'Failed to create a jpeg image: %s' % exc))
status['libraries'] = libraries_results
# Check file paths.
msg = 'We want read + write.'
filepaths = (
(settings.USER_AVATAR_PATH, os.R_OK | os.W_OK, msg),
(settings.IMAGE_UPLOAD_PATH, os.R_OK | os.W_OK, msg),
(settings.THUMBNAIL_UPLOAD_PATH, os.R_OK | os.W_OK, msg),
(settings.GALLERY_IMAGE_PATH, os.R_OK | os.W_OK, msg),
(settings.GALLERY_IMAGE_THUMBNAIL_PATH, os.R_OK | os.W_OK, msg),
(settings.GALLERY_VIDEO_PATH, os.R_OK | os.W_OK, msg),
(settings.GALLERY_VIDEO_THUMBNAIL_PATH, os.R_OK | os.W_OK, msg),
(settings.GROUP_AVATAR_PATH, os.R_OK | os.W_OK, msg),
)
filepath_results = []
for path, perms, notes in filepaths:
path = os.path.join(settings.MEDIA_ROOT, path)
path_exists = os.path.isdir(path)
path_perms = os.access(path, perms)
if path_exists and path_perms:
filepath_results.append(
(INFO, '%s: %s %s %s' % (path, path_exists, path_perms,
notes)))
status['filepaths'] = filepath_results
# Check RabbitMQ.
rabbitmq_results = []
try:
rabbit_conn = establish_connection(connect_timeout=2)
rabbit_conn.connect()
rabbitmq_results.append(
(INFO, 'Successfully connected to RabbitMQ.'))
rabbitmq_results.append(
(INFO, 'Queue size: %s' % rabbitmq_queue_size()))
except (socket.error, IOError) as exc:
rabbitmq_results.append(
(ERROR, 'Error connecting to RabbitMQ: %s' % str(exc)))
except Exception as exc:
rabbitmq_results.append(
(ERROR, 'Exception while looking at RabbitMQ: %s' % str(exc)))
status['RabbitMQ'] = rabbitmq_results
# Check ES.
es_results = []
try:
es_utils.get_doctype_stats(es_utils.all_read_indexes()[0])
es_results.append(
(INFO, ('Successfully connected to ElasticSearch and index '
'exists.')))
except es_utils.ES_EXCEPTIONS as exc:
es_results.append(
(ERROR, 'ElasticSearch problem: %s' % str(exc)))
except Exception as exc:
es_results.append(
(ERROR, 'Exception while looking at ElasticSearch: %s' % str(exc)))
status['ElasticSearch'] = es_results
# Check Celery.
# start = time.time()
# pong = celery.task.ping()
# rabbit_results = r = {'duration': time.time() - start}
# status_summary['rabbit'] = pong == 'pong' and r['duration'] < 1
# Check Redis.
redis_results = []
if hasattr(settings, 'REDIS_BACKENDS'):
for backend in settings.REDIS_BACKENDS:
try:
redis_client(backend)
redis_results.append((INFO, '%s: Pass!' % backend))
except RedisError:
redis_results.append((ERROR, '%s: Fail!' % backend))
status['Redis'] = redis_results
status_code = 200
status_summary = {}
for component, output in status.items():
if ERROR in [item[0] for item in output]:
status_code = 500
status_summary[component] = False
else:
status_summary[component] = True
return render(request, 'services/monitor.html', {
'component_status': status,
'status_summary': status_summary},
status=status_code)
def monitor(request):
"""View for services monitor."""
status = {}
# Note: To add a new component to the services monitor, do your
# testing and then add a name -> list of output tuples map to
# status.
# Check memcached.
memcache_results = []
try:
for cache_name, cache_props in settings.CACHES.items():
result = True
backend = cache_props['BACKEND']
location = cache_props['LOCATION']
# LOCATION can be a string or a list of strings
if isinstance(location, basestring):
location = location.split(';')
if 'memcache' in backend:
for loc in location:
# TODO: this doesn't handle unix: variant
ip, port = loc.split(':')
result = test_memcached(ip, int(port))
memcache_results.append(
(INFO, '%s:%s %s' % (ip, port, result)))
if not memcache_results:
memcache_results.append((ERROR, 'memcache is not configured.'))
elif len(memcache_results) < 2:
memcache_results.append(
(ERROR, ('You should have at least 2 memcache servers. '
'You have %s.' % len(memcache_results))))
else:
memcache_results.append((INFO, 'memcached servers look good.'))
except Exception as exc:
memcache_results.append(
(ERROR, 'Exception while looking at memcached: %s' % str(exc)))
status['memcached'] = memcache_results
# Check Libraries and versions
libraries_results = []
try:
Image.new('RGB', (16, 16)).save(StringIO.StringIO(), 'JPEG')
libraries_results.append((INFO, 'PIL+JPEG: Got it!'))
except Exception as exc:
libraries_results.append((ERROR, 'PIL+JPEG: Probably missing: '
'Failed to create a jpeg image: %s' % exc))
status['libraries'] = libraries_results
# Check file paths.
msg = 'We want read + write.'
filepaths = (
(settings.USER_AVATAR_PATH, os.R_OK | os.W_OK, msg),
(settings.IMAGE_UPLOAD_PATH, os.R_OK | os.W_OK, msg),
(settings.THUMBNAIL_UPLOAD_PATH, os.R_OK | os.W_OK, msg),
(settings.GALLERY_IMAGE_PATH, os.R_OK | os.W_OK, msg),
(settings.GALLERY_IMAGE_THUMBNAIL_PATH, os.R_OK | os.W_OK, msg),
(settings.GALLERY_VIDEO_PATH, os.R_OK | os.W_OK, msg),
(settings.GALLERY_VIDEO_THUMBNAIL_PATH, os.R_OK | os.W_OK, msg),
(settings.GROUP_AVATAR_PATH, os.R_OK | os.W_OK, msg),
)
filepath_results = []
for path, perms, notes in filepaths:
path = os.path.join(settings.MEDIA_ROOT, path)
path_exists = os.path.isdir(path)
path_perms = os.access(path, perms)
if path_exists and path_perms:
filepath_results.append(
(INFO,
'%s: %s %s %s' % (path, path_exists, path_perms, notes)))
status['filepaths'] = filepath_results
# Check RabbitMQ.
rabbitmq_results = []
try:
rabbit_conn = establish_connection(connect_timeout=2)
rabbit_conn.connect()
rabbitmq_results.append((INFO, 'Successfully connected to RabbitMQ.'))
rabbitmq_results.append(
(INFO, 'Queue size: %s' % rabbitmq_queue_size()))
except (socket.error, IOError) as exc:
rabbitmq_results.append(
(ERROR, 'Error connecting to RabbitMQ: %s' % str(exc)))
except Exception as exc:
rabbitmq_results.append(
(ERROR, 'Exception while looking at RabbitMQ: %s' % str(exc)))
status['RabbitMQ'] = rabbitmq_results
# Check ES.
es_results = []
try:
es_utils.get_doctype_stats(es_utils.all_read_indexes()[0])
es_results.append(
(INFO, ('Successfully connected to ElasticSearch and index '
'exists.')))
except es_utils.ES_EXCEPTIONS as exc:
es_results.append((ERROR, 'ElasticSearch problem: %s' % str(exc)))
except Exception as exc:
es_results.append(
(ERROR, 'Exception while looking at ElasticSearch: %s' % str(exc)))
status['ElasticSearch'] = es_results
# Check Celery.
# start = time.time()
# pong = celery.task.ping()
# rabbit_results = r = {'duration': time.time() - start}
# status_summary['rabbit'] = pong == 'pong' and r['duration'] < 1
# Check Redis.
redis_results = []
if hasattr(settings, 'REDIS_BACKENDS'):
for backend in settings.REDIS_BACKENDS:
try:
redis_client(backend)
redis_results.append((INFO, '%s: Pass!' % backend))
except RedisError:
redis_results.append((ERROR, '%s: Fail!' % backend))
status['Redis'] = redis_results
status_code = 200
status_summary = {}
for component, output in status.items():
if ERROR in [item[0] for item in output]:
status_code = 500
status_summary[component] = False
else:
status_summary[component] = True
return render(request,
'services/monitor.html', {
'component_status': status,
'status_summary': status_summary
},
status=status_code)