def test_report_counters(self):
"""
C{report_counters} keeps the last value of a called function and on the
next call returns the difference between current return value and
previous return value.
"""
def generate():
yield {"foo": 1}
yield {"foo": 5}
yield {"foo": 10}
yield {"foo": 17}
generate = generate()
def reporter():
return generate.next()
wrapped = report_counters(reporter)
self.assertEqual({}, wrapped())
self.assertEqual({"foo": 4}, wrapped())
self.assertEqual({"foo": 5}, wrapped())
self.assertEqual({"foo": 7}, wrapped())
def test_report_counters(self):
"""
C{report_counters} keeps the last value of a called function and on the
next call returns the difference between current return value and
previous return value.
"""
def generate():
yield {"foo": 1}
yield {"foo": 5}
yield {"foo": 10}
yield {"foo": 17}
generate = generate()
def reporter():
return generate.next()
wrapped = report_counters(reporter)
self.assertEqual({}, wrapped())
self.assertEqual({"foo": 4}, wrapped())
self.assertEqual({"foo": 5}, wrapped())
self.assertEqual({"foo": 7}, wrapped())
from supervisor import childutils, states
from django.conf import settings
from metrics.metricsconnector import MetricsConnector
from txstatsd.process import (
report_file_stats, report_counters, report_system_stats,
parse_meminfo, parse_loadavg, parse_netdev, ProcessReport)
from ubuntuone.storage.server.logger import configure_logger
SYSTEM_STATS = (
report_file_stats("/proc/meminfo", parse_meminfo),
report_file_stats("/proc/loadavg", parse_loadavg),
report_counters(report_file_stats("/proc/net/dev", parse_netdev)),
report_counters(report_system_stats, percpu=True),
)
class StatsWorker(object):
"""Get stats from different processes and the machine."""
def __init__(self, interval, namespace_prefix, supervisor_rpc):
self.interval = interval
self.rpc = supervisor_rpc
self.process_cache = {}
self.metrics = MetricsConnector.new_metrics(
namespace="%s.resources" % (namespace_prefix))
self.logger = logging.getLogger("resources")
from supervisor import childutils, states
from metrics.metricsconnector import MetricsConnector
from txstatsd.process import (report_file_stats, report_counters,
report_system_stats, parse_meminfo,
parse_loadavg, parse_netdev, ProcessReport)
from ubuntuone.storage.server.logger import configure_logger
from config import config
SYSTEM_STATS = (
report_file_stats("/proc/meminfo", parse_meminfo),
report_file_stats("/proc/loadavg", parse_loadavg),
report_counters(report_file_stats("/proc/net/dev", parse_netdev)),
report_counters(report_system_stats, percpu=True),
)
class StatsWorker(object):
"""Get stats from different processes and the machine."""
def __init__(self, interval, namespace_prefix, supervisor_rpc):
self.interval = interval
self.rpc = supervisor_rpc
self.process_cache = {}
self.metrics = MetricsConnector.new_metrics(namespace="%s.resources" %
(namespace_prefix))
self.logger = logging.getLogger("resources")
