Metadata-Version: 1.1
Name: sprockets.mixins.metrics
Version: 2.0.0
Summary: Record performance metrics about your application
Home-page: https://github.com/sprockets/sprockets.mixins.metrics
Author: AWeber Communications
Author-email: api@aweber.com
License: BSD
Description: 
        sprockets.mixins.metrics
        ========================
        Adjust counter and timer metrics in `InfluxDB`_ or `StatsD`_ using the same API.
        
        The mix-in is configured through the ``tornado.web.Application`` settings
        property using a key defined by the specific mix-in.
        
        Statsd Mixin
        ------------
        
        The following snippet configures the StatsD mix-in from common environment
        variables. This simple handler will emit a timer metric that identifies each
        call to the ``get`` method as well as a separate metric for the database query.
        
        .. code-block:: python
        
           import os
        
           from sprockets.mixins import mediatype
           from sprockets.mixins.metrics import statsd
           from tornado import gen, web
           import queries
        
           def make_application():
               settings = {
                   statsd.SETTINGS_KEY: {
                       'namespace': 'my-application',
                       'host': os.environ.get('STATSD_HOST', '127.0.0.1'),
                       'port': os.environ.get('STATSD_PORT', '8125'),
                   }
               }
               return web.Application([
                   # insert handlers here
               ], **settings)
        
           class MyHandler(statsd.StatsdMixin,
                           mediatype.ContentMixin,
                           web.RequestHandler):
        
               def initialize(self):
                   super(MyHandler, self).initialize()
                   self.db = queries.TornadoSession(os.environ['MY_PGSQL_DSN'])
        
               @gen.coroutine
               def get(self, obj_id):
                   with self.execution_timer('dbquery', 'get'):
                      result = yield self.db.query('SELECT * FROM foo WHERE id=%s',
                                                   obj_id)
                   self.send_response(result)
        
        Settings
        ^^^^^^^^
        
        :namespace: The namespace for the measurements
        :host: The Statsd host
        :port: The Statsd port
        
        InfluxDB Mixin
        --------------
        
        The following snippet configures the InfluxDB mix-in from common environment
        variables:
        
        .. code-block:: python
        
           import os
        
           from sprockets.mixins.metrics import influxdb
           from sprockets.mixins import postgresql
           from tornado import gen, web
        
           def make_app(**settings):
               settings[influxdb.SETTINGS_KEY] = {
                   'measurement': 'rollup',
               }
        
               application = web.Application(
                   [
                       web.url(r'/', RequestHandler),
                   ], **settings)
        
               influxdb.install({'url': 'http://localhost:8086',
                                 'database': 'tornado-app'})
               return application
        
        
           class MyHandler(influxdb.InfluxDBMixin,
                           postgresql.HandlerMixin,
                           web.RequestHandler):
        
               @gen.coroutine
               def get(self, obj_id):
                   with self.execution_timer('dbquery', 'get'):
                      result = yield self.postgresql_session.query(
                          'SELECT * FROM foo WHERE id=%s', obj_id)
                   self.send_response(result)
        
        If your application handles signal handling for shutdowns, the
        :meth:`~sprockets.mixins.influxdb.shutdown` method will try to cleanly ensure
        that any buffered metrics in the InfluxDB collector are written prior to
        shutting down. The method returns a :cls:`~tornado.concurrent.TracebackFuture`
        that should be waited on prior to shutting down.
        
        Settings
        ^^^^^^^^
        
        :url: The InfluxDB API URL
        :database: the database to write measurements into
        :submission_interval: How often to submit metric batches in
           milliseconds. Default: ``5000``
        :max_batch_size: The number of measurements to be submitted in a
           single HTTP request. Default: ``1000``
        :tags: Default tags that are to be submitted with each metric. The tag
           ``hostname`` is added by default along with ``environment`` and ``service``
           if the corresponding ``ENVIRONMENT`` or ``SERVICE`` environment variables
           are set.
        
        Development Quickstart
        ----------------------
        .. code-block:: bash
        
           $ python3.4 -mvenv env
           $ . ./env/bin/activate
           (env)$ env/bin/pip install -r requires/development.txt
           (env)$ nosetests
           test_metrics_with_buffer_not_flush (tests.InfluxDbTests) ... ok
           test_that_cached_db_connection_is_used (tests.InfluxDbTests) ... ok
           test_that_counter_is_tracked (tests.InfluxDbTests) ... ok
           test_that_execution_timer_is_tracked (tests.InfluxDbTests) ... ok
           test_that_http_method_call_details_are_recorded (tests.InfluxDbTests) ... ok
           test_that_metric_tag_is_tracked (tests.InfluxDbTests) ... ok
           test_that_add_metric_tag_is_ignored (tests.StatsdMethodTimingTests) ... ok
           test_that_cached_socket_is_used (tests.StatsdMethodTimingTests) ... ok
           test_that_counter_accepts_increment_value (tests.StatsdMethodTimingTests) ... ok
           test_that_counter_increment_defaults_to_one (tests.StatsdMethodTimingTests) ... ok
           test_that_default_prefix_is_stored (tests.StatsdMethodTimingTests) ... ok
           test_that_execution_timer_records_time_spent (tests.StatsdMethodTimingTests) ... ok
           test_that_http_method_call_is_recorded (tests.StatsdMethodTimingTests) ... ok
        
           ----------------------------------------------------------------------
           Ran 13 tests in 3.572s
        
           OK
           (env)$ ./setup.py build_sphinx -q
           running build_sphinx
           (env)$ open build/sphinx/html/index.html
        
        .. _StatsD: https://github.com/etsy/statsd
        .. _InfluxDB: https://influxdata.com
        
Platform: UNKNOWN
Classifier: Development Status :: 5 - Production/Stable
Classifier: Environment :: No Input/Output (Daemon)
Classifier: Intended Audience :: Developers
Classifier: License :: OSI Approved :: BSD License
Classifier: Natural Language :: English
Classifier: Operating System :: OS Independent
Classifier: Programming Language :: Python :: 2
Classifier: Programming Language :: Python :: 2.7
Classifier: Programming Language :: Python :: 3
Classifier: Programming Language :: Python :: 3.4
Classifier: Programming Language :: Python :: 3.5
Classifier: Programming Language :: Python :: Implementation :: CPython
Classifier: Programming Language :: Python :: Implementation :: PyPy
Classifier: Topic :: Internet :: WWW/HTTP
Classifier: Topic :: Software Development :: Libraries
Classifier: Topic :: Software Development :: Libraries :: Python Modules
