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Code Issues Releases Wiki Activity

Support Prometheus_client 0.4.0+ (#5636)

pull/5713/head
Amber Brown 2019-07-18 23:57:15 +10:00 committed by GitHub
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commit 7ad1d76356
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7
UPGRADE.rst
View File

@ -49,6 +49,13 @@ returned by the Client-Server API:
# configured on port 443.
curl -kv https://<host.name>/_matrix/client/versions 2>&1 | grep "Server:"
Upgrading to v1.2.0
===================
Some counter metrics have been renamed, with the old names deprecated. See
`the metrics documentation <docs/metrics-howto.rst#renaming-of-metrics--deprecation-of-old-names-in-12>`_
for details.
Upgrading to v1.1.0
===================

1
changelog.d/5636.misc Normal file
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@ -0,0 +1 @@
Some counter metrics exposed over Prometheus have been renamed, with the old names preserved for backwards compatibility and deprecated. See `docs/metrics-howto.rst` for details.

102
docs/metrics-howto.rst
View File

@ -59,6 +59,108 @@ How to monitor Synapse metrics using Prometheus
Restart Prometheus.
Renaming of metrics & deprecation of old names in 1.2
-----------------------------------------------------
Synapse 1.2 updates the Prometheus metrics to match the naming convention of the
upstream ``prometheus_client``. The old names are considered deprecated and will
be removed in a future version of Synapse.
+-----------------------------------------------------------------------------+-----------------------------------------------------------------------+
| New Name | Old Name |
+=============================================================================+=======================================================================+
| python_gc_objects_collected_total | python_gc_objects_collected |
+-----------------------------------------------------------------------------+-----------------------------------------------------------------------+
| python_gc_objects_uncollectable_total | python_gc_objects_uncollectable |
+-----------------------------------------------------------------------------+-----------------------------------------------------------------------+
| python_gc_collections_total | python_gc_collections |
+-----------------------------------------------------------------------------+-----------------------------------------------------------------------+
| process_cpu_seconds_total | process_cpu_seconds |
+-----------------------------------------------------------------------------+-----------------------------------------------------------------------+
| synapse_federation_client_sent_transactions_total | synapse_federation_client_sent_transactions |
+-----------------------------------------------------------------------------+-----------------------------------------------------------------------+
| synapse_federation_client_events_processed_total | synapse_federation_client_events_processed |
+-----------------------------------------------------------------------------+-----------------------------------------------------------------------+
| synapse_event_processing_loop_count_total | synapse_event_processing_loop_count |
+-----------------------------------------------------------------------------+-----------------------------------------------------------------------+
| synapse_event_processing_loop_room_count_total | synapse_event_processing_loop_room_count |
+-----------------------------------------------------------------------------+-----------------------------------------------------------------------+
| synapse_util_metrics_block_count_total | synapse_util_metrics_block_count |
+-----------------------------------------------------------------------------+-----------------------------------------------------------------------+
| synapse_util_metrics_block_time_seconds_total | synapse_util_metrics_block_time_seconds |
+-----------------------------------------------------------------------------+-----------------------------------------------------------------------+
| synapse_util_metrics_block_ru_utime_seconds_total | synapse_util_metrics_block_ru_utime_seconds |
+-----------------------------------------------------------------------------+-----------------------------------------------------------------------+
| synapse_util_metrics_block_ru_stime_seconds_total | synapse_util_metrics_block_ru_stime_seconds |
+-----------------------------------------------------------------------------+-----------------------------------------------------------------------+
| synapse_util_metrics_block_db_txn_count_total | synapse_util_metrics_block_db_txn_count |
+-----------------------------------------------------------------------------+-----------------------------------------------------------------------+
| synapse_util_metrics_block_db_txn_duration_seconds_total | synapse_util_metrics_block_db_txn_duration_seconds |
+-----------------------------------------------------------------------------+-----------------------------------------------------------------------+
| synapse_util_metrics_block_db_sched_duration_seconds_total | synapse_util_metrics_block_db_sched_duration_seconds |
+-----------------------------------------------------------------------------+-----------------------------------------------------------------------+
| synapse_background_process_start_count_total | synapse_background_process_start_count |
+-----------------------------------------------------------------------------+-----------------------------------------------------------------------+
| synapse_background_process_ru_utime_seconds_total | synapse_background_process_ru_utime_seconds |
+-----------------------------------------------------------------------------+-----------------------------------------------------------------------+
| synapse_background_process_ru_stime_seconds_total | synapse_background_process_ru_stime_seconds |
+-----------------------------------------------------------------------------+-----------------------------------------------------------------------+
| synapse_background_process_db_txn_count_total | synapse_background_process_db_txn_count |
+-----------------------------------------------------------------------------+-----------------------------------------------------------------------+
| synapse_background_process_db_txn_duration_seconds_total | synapse_background_process_db_txn_duration_seconds |
+-----------------------------------------------------------------------------+-----------------------------------------------------------------------+
| synapse_background_process_db_sched_duration_seconds_total | synapse_background_process_db_sched_duration_seconds |
+-----------------------------------------------------------------------------+-----------------------------------------------------------------------+
| synapse_storage_events_persisted_events_total | synapse_storage_events_persisted_events |
+-----------------------------------------------------------------------------+-----------------------------------------------------------------------+
| synapse_storage_events_persisted_events_sep_total | synapse_storage_events_persisted_events_sep |
+-----------------------------------------------------------------------------+-----------------------------------------------------------------------+
| synapse_storage_events_state_delta_total | synapse_storage_events_state_delta |
+-----------------------------------------------------------------------------+-----------------------------------------------------------------------+
| synapse_storage_events_state_delta_single_event_total | synapse_storage_events_state_delta_single_event |
+-----------------------------------------------------------------------------+-----------------------------------------------------------------------+
| synapse_storage_events_state_delta_reuse_delta_total | synapse_storage_events_state_delta_reuse_delta |
+-----------------------------------------------------------------------------+-----------------------------------------------------------------------+
| synapse_federation_server_received_pdus_total | synapse_federation_server_received_pdus |
+-----------------------------------------------------------------------------+-----------------------------------------------------------------------+
| synapse_federation_server_received_edus_total | synapse_federation_server_received_edus |
+-----------------------------------------------------------------------------+-----------------------------------------------------------------------+
| synapse_handler_presence_notified_presence_total | synapse_handler_presence_notified_presence |
+-----------------------------------------------------------------------------+-----------------------------------------------------------------------+
| synapse_handler_presence_federation_presence_out_total | synapse_handler_presence_federation_presence_out |
+-----------------------------------------------------------------------------+-----------------------------------------------------------------------+
| synapse_handler_presence_presence_updates_total | synapse_handler_presence_presence_updates |
+-----------------------------------------------------------------------------+-----------------------------------------------------------------------+
| synapse_handler_presence_timers_fired_total | synapse_handler_presence_timers_fired |
+-----------------------------------------------------------------------------+-----------------------------------------------------------------------+
| synapse_handler_presence_federation_presence_total | synapse_handler_presence_federation_presence |
+-----------------------------------------------------------------------------+-----------------------------------------------------------------------+
| synapse_handler_presence_bump_active_time_total | synapse_handler_presence_bump_active_time |
+-----------------------------------------------------------------------------+-----------------------------------------------------------------------+
| synapse_federation_client_sent_edus_total | synapse_federation_client_sent_edus |
+-----------------------------------------------------------------------------+-----------------------------------------------------------------------+
| synapse_federation_client_sent_pdu_destinations_count_total | synapse_federation_client_sent_pdu_destinations:count |
+-----------------------------------------------------------------------------+-----------------------------------------------------------------------+
| synapse_federation_client_sent_pdu_destinations_total | synapse_federation_client_sent_pdu_destinations:total |
+-----------------------------------------------------------------------------+-----------------------------------------------------------------------+
| synapse_handlers_appservice_events_processed_total | synapse_handlers_appservice_events_processed |
+-----------------------------------------------------------------------------+-----------------------------------------------------------------------+
| synapse_notifier_notified_events_total | synapse_notifier_notified_events |
+-----------------------------------------------------------------------------+-----------------------------------------------------------------------+
| synapse_push_bulk_push_rule_evaluator_push_rules_invalidation_counter_total | synapse_push_bulk_push_rule_evaluator_push_rules_invalidation_counter |
+-----------------------------------------------------------------------------+-----------------------------------------------------------------------+
| synapse_push_bulk_push_rule_evaluator_push_rules_state_size_counter_total | synapse_push_bulk_push_rule_evaluator_push_rules_state_size_counter |
+-----------------------------------------------------------------------------+-----------------------------------------------------------------------+
| synapse_http_httppusher_http_pushes_processed_total | synapse_http_httppusher_http_pushes_processed |
+-----------------------------------------------------------------------------+-----------------------------------------------------------------------+
| synapse_http_httppusher_http_pushes_failed_total | synapse_http_httppusher_http_pushes_failed |
+-----------------------------------------------------------------------------+-----------------------------------------------------------------------+
| synapse_http_httppusher_badge_updates_processed_total | synapse_http_httppusher_badge_updates_processed |
+-----------------------------------------------------------------------------+-----------------------------------------------------------------------+
| synapse_http_httppusher_badge_updates_failed_total | synapse_http_httppusher_badge_updates_failed |
+-----------------------------------------------------------------------------+-----------------------------------------------------------------------+
Removal of deprecated metrics & time based counters becoming histograms in 0.31.0
---------------------------------------------------------------------------------

3
synapse/app/_base.py
View File

@ -149,8 +149,7 @@ def listen_metrics(bind_addresses, port):
"""
Start Prometheus metrics server.
"""
from synapse.metrics import RegistryProxy
from prometheus_client import start_http_server
from synapse.metrics import RegistryProxy, start_http_server
for host in bind_addresses:
logger.info("Starting metrics listener on %s:%d", host, port)

3
synapse/app/appservice.py
View File

@ -27,8 +27,7 @@ from synapse.config.homeserver import HomeServerConfig
from synapse.config.logger import setup_logging
from synapse.http.site import SynapseSite
from synapse.logging.context import LoggingContext, run_in_background
from synapse.metrics import RegistryProxy
from synapse.metrics.resource import METRICS_PREFIX, MetricsResource
from synapse.metrics import METRICS_PREFIX, MetricsResource, RegistryProxy
from synapse.replication.slave.storage.appservice import SlavedApplicationServiceStore
from synapse.replication.slave.storage.directory import DirectoryStore
from synapse.replication.slave.storage.events import SlavedEventStore

3
synapse/app/client_reader.py
View File

@ -28,8 +28,7 @@ from synapse.config.logger import setup_logging
from synapse.http.server import JsonResource
from synapse.http.site import SynapseSite
from synapse.logging.context import LoggingContext
from synapse.metrics import RegistryProxy
from synapse.metrics.resource import METRICS_PREFIX, MetricsResource
from synapse.metrics import METRICS_PREFIX, MetricsResource, RegistryProxy
from synapse.replication.slave.storage._base import BaseSlavedStore
from synapse.replication.slave.storage.account_data import SlavedAccountDataStore
from synapse.replication.slave.storage.appservice import SlavedApplicationServiceStore

3
synapse/app/event_creator.py
View File

@ -28,8 +28,7 @@ from synapse.config.logger import setup_logging
from synapse.http.server import JsonResource
from synapse.http.site import SynapseSite
from synapse.logging.context import LoggingContext
from synapse.metrics import RegistryProxy
from synapse.metrics.resource import METRICS_PREFIX, MetricsResource
from synapse.metrics import METRICS_PREFIX, MetricsResource, RegistryProxy
from synapse.replication.slave.storage._base import BaseSlavedStore
from synapse.replication.slave.storage.account_data import SlavedAccountDataStore
from synapse.replication.slave.storage.appservice import SlavedApplicationServiceStore

3
synapse/app/federation_reader.py
View File

@ -29,8 +29,7 @@ from synapse.config.logger import setup_logging
from synapse.federation.transport.server import TransportLayerServer
from synapse.http.site import SynapseSite
from synapse.logging.context import LoggingContext
from synapse.metrics import RegistryProxy
from synapse.metrics.resource import METRICS_PREFIX, MetricsResource
from synapse.metrics import METRICS_PREFIX, MetricsResource, RegistryProxy
from synapse.replication.slave.storage._base import BaseSlavedStore
from synapse.replication.slave.storage.account_data import SlavedAccountDataStore
from synapse.replication.slave.storage.appservice import SlavedApplicationServiceStore

3
synapse/app/federation_sender.py
View File

@ -28,9 +28,8 @@ from synapse.config.logger import setup_logging
from synapse.federation import send_queue
from synapse.http.site import SynapseSite
from synapse.logging.context import LoggingContext, run_in_background
from synapse.metrics import RegistryProxy
from synapse.metrics import METRICS_PREFIX, MetricsResource, RegistryProxy
from synapse.metrics.background_process_metrics import run_as_background_process
from synapse.metrics.resource import METRICS_PREFIX, MetricsResource
from synapse.replication.slave.storage.deviceinbox import SlavedDeviceInboxStore
from synapse.replication.slave.storage.devices import SlavedDeviceStore
from synapse.replication.slave.storage.events import SlavedEventStore

3
synapse/app/frontend_proxy.py
View File

@ -30,8 +30,7 @@ from synapse.http.server import JsonResource
from synapse.http.servlet import RestServlet, parse_json_object_from_request
from synapse.http.site import SynapseSite
from synapse.logging.context import LoggingContext
from synapse.metrics import RegistryProxy
from synapse.metrics.resource import METRICS_PREFIX, MetricsResource
from synapse.metrics import METRICS_PREFIX, MetricsResource, RegistryProxy
from synapse.replication.slave.storage._base import BaseSlavedStore
from synapse.replication.slave.storage.appservice import SlavedApplicationServiceStore
from synapse.replication.slave.storage.client_ips import SlavedClientIpStore

3
synapse/app/homeserver.py
View File

@ -55,9 +55,8 @@ from synapse.http.additional_resource import AdditionalResource
from synapse.http.server import RootRedirect
from synapse.http.site import SynapseSite
from synapse.logging.context import LoggingContext
from synapse.metrics import RegistryProxy
from synapse.metrics import METRICS_PREFIX, MetricsResource, RegistryProxy
from synapse.metrics.background_process_metrics import run_as_background_process
from synapse.metrics.resource import METRICS_PREFIX, MetricsResource
from synapse.module_api import ModuleApi
from synapse.python_dependencies import check_requirements
from synapse.replication.http import REPLICATION_PREFIX, ReplicationRestResource

3
synapse/app/media_repository.py
View File

@ -28,8 +28,7 @@ from synapse.config.homeserver import HomeServerConfig
from synapse.config.logger import setup_logging
from synapse.http.site import SynapseSite
from synapse.logging.context import LoggingContext
from synapse.metrics import RegistryProxy
from synapse.metrics.resource import METRICS_PREFIX, MetricsResource
from synapse.metrics import METRICS_PREFIX, MetricsResource, RegistryProxy
from synapse.replication.slave.storage._base import BaseSlavedStore
from synapse.replication.slave.storage.appservice import SlavedApplicationServiceStore
from synapse.replication.slave.storage.client_ips import SlavedClientIpStore

3
synapse/app/pusher.py
View File

@ -27,8 +27,7 @@ from synapse.config.homeserver import HomeServerConfig
from synapse.config.logger import setup_logging
from synapse.http.site import SynapseSite
from synapse.logging.context import LoggingContext, run_in_background
from synapse.metrics import RegistryProxy
from synapse.metrics.resource import METRICS_PREFIX, MetricsResource
from synapse.metrics import METRICS_PREFIX, MetricsResource, RegistryProxy
from synapse.replication.slave.storage._base import __func__
from synapse.replication.slave.storage.account_data import SlavedAccountDataStore
from synapse.replication.slave.storage.events import SlavedEventStore

3
synapse/app/synchrotron.py
View File

@ -32,8 +32,7 @@ from synapse.handlers.presence import PresenceHandler, get_interested_parties
from synapse.http.server import JsonResource
from synapse.http.site import SynapseSite
from synapse.logging.context import LoggingContext, run_in_background
from synapse.metrics import RegistryProxy
from synapse.metrics.resource import METRICS_PREFIX, MetricsResource
from synapse.metrics import METRICS_PREFIX, MetricsResource, RegistryProxy
from synapse.replication.slave.storage._base import BaseSlavedStore, __func__
from synapse.replication.slave.storage.account_data import SlavedAccountDataStore
from synapse.replication.slave.storage.appservice import SlavedApplicationServiceStore

3
synapse/app/user_dir.py
View File

@ -29,8 +29,7 @@ from synapse.config.logger import setup_logging
from synapse.http.server import JsonResource
from synapse.http.site import SynapseSite
from synapse.logging.context import LoggingContext, run_in_background
from synapse.metrics import RegistryProxy
from synapse.metrics.resource import METRICS_PREFIX, MetricsResource
from synapse.metrics import METRICS_PREFIX, MetricsResource, RegistryProxy
from synapse.replication.slave.storage._base import BaseSlavedStore
from synapse.replication.slave.storage.appservice import SlavedApplicationServiceStore
from synapse.replication.slave.storage.client_ips import SlavedClientIpStore

17
synapse/metrics/__init__.py
View File

@ -29,8 +29,16 @@ from prometheus_client.core import REGISTRY, GaugeMetricFamily, HistogramMetricF
from twisted.internet import reactor
from synapse.metrics._exposition import (
MetricsResource,
generate_latest,
start_http_server,
)
logger = logging.getLogger(__name__)
METRICS_PREFIX = "/_synapse/metrics"
running_on_pypy = platform.python_implementation() == "PyPy"
all_metrics = []
all_collectors = []
@ -470,3 +478,12 @@ try:
gc.disable()
except AttributeError:
pass
__all__ = [
"MetricsResource",
"generate_latest",
"start_http_server",
"LaterGauge",
"InFlightGauge",
"BucketCollector",
]

258
synapse/metrics/_exposition.py Normal file
View File

@ -0,0 +1,258 @@
# -*- coding: utf-8 -*-
# Copyright 2015-2019 Prometheus Python Client Developers
# Copyright 2019 Matrix.org Foundation C.I.C.
#
# Licensed under the Apache License, Version 2.0 (the "License");
# you may not use this file except in compliance with the License.
# You may obtain a copy of the License at
#
# http://www.apache.org/licenses/LICENSE-2.0
#
# Unless required by applicable law or agreed to in writing, software
# distributed under the License is distributed on an "AS IS" BASIS,
# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
# See the License for the specific language governing permissions and
# limitations under the License.
"""
This code is based off `prometheus_client/exposition.py` from version 0.7.1.
Due to the renaming of metrics in prometheus_client 0.4.0, this customised
vendoring of the code will emit both the old versions that Synapse dashboards
expect, and the newer "best practice" version of the up-to-date official client.
"""
import math
import threading
from collections import namedtuple
from http.server import BaseHTTPRequestHandler, HTTPServer
from socketserver import ThreadingMixIn
from urllib.parse import parse_qs, urlparse
from prometheus_client import REGISTRY
from twisted.web.resource import Resource
try:
from prometheus_client.samples import Sample
except ImportError:
Sample = namedtuple("Sample", ["name", "labels", "value", "timestamp", "exemplar"])
CONTENT_TYPE_LATEST = str("text/plain; version=0.0.4; charset=utf-8")
INF = float("inf")
MINUS_INF = float("-inf")
def floatToGoString(d):
d = float(d)
if d == INF:
return "+Inf"
elif d == MINUS_INF:
return "-Inf"
elif math.isnan(d):
return "NaN"
else:
s = repr(d)
dot = s.find(".")
# Go switches to exponents sooner than Python.
# We only need to care about positive values for le/quantile.
if d > 0 and dot > 6:
mantissa = "{0}.{1}{2}".format(s[0], s[1:dot], s[dot + 1 :]).rstrip("0.")
return "{0}e+0{1}".format(mantissa, dot - 1)
return s
def sample_line(line, name):
if line.labels:
labelstr = "{{{0}}}".format(
",".join(
[
'{0}="{1}"'.format(
k,
v.replace("\\", r"\\").replace("\n", r"\n").replace('"', r"\""),
)
for k, v in sorted(line.labels.items())
]
)
)
else:
labelstr = ""
timestamp = ""
if line.timestamp is not None:
# Convert to milliseconds.
timestamp = " {0:d}".format(int(float(line.timestamp) * 1000))
return "{0}{1} {2}{3}\n".format(
name, labelstr, floatToGoString(line.value), timestamp
)
def nameify_sample(sample):
"""
If we get a prometheus_client<0.4.0 sample as a tuple, transform it into a
namedtuple which has the names we expect.
"""
if not isinstance(sample, Sample):
sample = Sample(*sample, None, None)
return sample
def generate_latest(registry, emit_help=False):
output = []
for metric in registry.collect():
if metric.name.startswith("__unused"):
continue
if not metric.samples:
# No samples, don't bother.
continue
mname = metric.name
mnewname = metric.name
mtype = metric.type
# OpenMetrics -> Prometheus
if mtype == "counter":
mnewname = mnewname + "_total"
elif mtype == "info":
mtype = "gauge"
mnewname = mnewname + "_info"
elif mtype == "stateset":
mtype = "gauge"
elif mtype == "gaugehistogram":
mtype = "histogram"
elif mtype == "unknown":
mtype = "untyped"
# Output in the old format for compatibility.
if emit_help:
output.append(
"# HELP {0} {1}\n".format(
mname,
metric.documentation.replace("\\", r"\\").replace("\n", r"\n"),
)
)
output.append("# TYPE {0} {1}\n".format(mname, mtype))
for sample in map(nameify_sample, metric.samples):
# Get rid of the OpenMetrics specific samples
for suffix in ["_created", "_gsum", "_gcount"]:
if sample.name.endswith(suffix):
break
else:
newname = sample.name.replace(mnewname, mname)
if ":" in newname and newname.endswith("_total"):
newname = newname[: -len("_total")]
output.append(sample_line(sample, newname))
# Get rid of the weird colon things while we're at it
if mtype == "counter":
mnewname = mnewname.replace(":total", "")
mnewname = mnewname.replace(":", "_")
if mname == mnewname:
continue
# Also output in the new format, if it's different.
if emit_help:
output.append(
"# HELP {0} {1}\n".format(
mnewname,
metric.documentation.replace("\\", r"\\").replace("\n", r"\n"),
)
)
output.append("# TYPE {0} {1}\n".format(mnewname, mtype))
for sample in map(nameify_sample, metric.samples):
# Get rid of the OpenMetrics specific samples
for suffix in ["_created", "_gsum", "_gcount"]:
if sample.name.endswith(suffix):
break
else:
output.append(
sample_line(
sample, sample.name.replace(":total", "").replace(":", "_")
)
)
return "".join(output).encode("utf-8")
class MetricsHandler(BaseHTTPRequestHandler):
"""HTTP handler that gives metrics from ``REGISTRY``."""
registry = REGISTRY
def do_GET(self):
registry = self.registry
params = parse_qs(urlparse(self.path).query)
if "help" in params:
emit_help = True
else:
emit_help = False
try:
output = generate_latest(registry, emit_help=emit_help)
except Exception:
self.send_error(500, "error generating metric output")
raise
self.send_response(200)
self.send_header("Content-Type", CONTENT_TYPE_LATEST)
self.end_headers()
self.wfile.write(output)
def log_message(self, format, *args):
"""Log nothing."""
@classmethod
def factory(cls, registry):
"""Returns a dynamic MetricsHandler class tied
to the passed registry.
"""
# This implementation relies on MetricsHandler.registry
# (defined above and defaulted to REGISTRY).
# As we have unicode_literals, we need to create a str()
# object for type().
cls_name = str(cls.__name__)
MyMetricsHandler = type(cls_name, (cls, object), {"registry": registry})
return MyMetricsHandler
class _ThreadingSimpleServer(ThreadingMixIn, HTTPServer):
"""Thread per request HTTP server."""
# Make worker threads "fire and forget". Beginning with Python 3.7 this
# prevents a memory leak because ``ThreadingMixIn`` starts to gather all
# non-daemon threads in a list in order to join on them at server close.
# Enabling daemon threads virtually makes ``_ThreadingSimpleServer`` the
# same as Python 3.7's ``ThreadingHTTPServer``.
daemon_threads = True
def start_http_server(port, addr="", registry=REGISTRY):
"""Starts an HTTP server for prometheus metrics as a daemon thread"""
CustomMetricsHandler = MetricsHandler.factory(registry)
httpd = _ThreadingSimpleServer((addr, port), CustomMetricsHandler)
t = threading.Thread(target=httpd.serve_forever)
t.daemon = True
t.start()
class MetricsResource(Resource):
"""
Twisted ``Resource`` that serves prometheus metrics.
"""
isLeaf = True
def __init__(self, registry=REGISTRY):
self.registry = registry
def render_GET(self, request):
request.setHeader(b"Content-Type", CONTENT_TYPE_LATEST.encode("ascii"))
return generate_latest(self.registry)

20
synapse/metrics/resource.py
View File

@ -1,20 +0,0 @@
# -*- coding: utf-8 -*-
# Copyright 2015, 2016 OpenMarket Ltd
#
# Licensed under the Apache License, Version 2.0 (the "License");
# you may not use this file except in compliance with the License.
# You may obtain a copy of the License at
#
# http://www.apache.org/licenses/LICENSE-2.0
#
# Unless required by applicable law or agreed to in writing, software
# distributed under the License is distributed on an "AS IS" BASIS,
# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
# See the License for the specific language governing permissions and
# limitations under the License.
from prometheus_client.twisted import MetricsResource
METRICS_PREFIX = "/_synapse/metrics"
__all__ = ["MetricsResource", "METRICS_PREFIX"]

4
synapse/python_dependencies.py
View File

@ -65,9 +65,7 @@ REQUIREMENTS = [
"msgpack>=0.5.2",
"phonenumbers>=8.2.0",
"six>=1.10",
# prometheus_client 0.4.0 changed the format of counter metrics
# (cf https://github.com/matrix-org/synapse/issues/4001)
"prometheus_client>=0.0.18,<0.4.0",
"prometheus_client>=0.0.18,<0.8.0",
# we use attr.s(slots), which arrived in 16.0.0
# Twisted 18.7.0 requires attrs>=17.4.0
"attrs>=17.4.0",

4
tests/storage/test_event_metrics.py
View File

@ -13,9 +13,7 @@
# See the License for the specific language governing permissions and
# limitations under the License.
from prometheus_client.exposition import generate_latest
from synapse.metrics import REGISTRY
from synapse.metrics import REGISTRY, generate_latest
from synapse.types import Requester, UserID
from tests.unittest import HomeserverTestCase