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90 lines
3.5 KiB
Python
90 lines
3.5 KiB
Python
# -*- coding: utf-8 -*-
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# Copyright 2014-2016 OpenMarket Ltd
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# Copyright 2018 New Vector Ltd
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#
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# Licensed under the Apache License, Version 2.0 (the "License");
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# you may not use this file except in compliance with the License.
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# You may obtain a copy of the License at
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#
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# http://www.apache.org/licenses/LICENSE-2.0
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#
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# Unless required by applicable law or agreed to in writing, software
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# distributed under the License is distributed on an "AS IS" BASIS,
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# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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# See the License for the specific language governing permissions and
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# limitations under the License.
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import logging
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from prometheus_client.core import Counter, Histogram
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from synapse.util.logcontext import LoggingContext
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logger = logging.getLogger(__name__)
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# total number of responses served, split by method/servlet/tag
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response_count = Counter("synapse_http_server_response_count", "", ["method", "servlet", "tag"])
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requests_counter = Counter("synapse_http_server_requests_received", "", ["method", "servlet"])
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outgoing_responses_counter = Counter("synapse_http_server_responses", "", ["method", "code"])
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response_timer = Histogram("synapse_http_server_response_time_seconds", "", ["method", "servlet", "tag"])
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response_ru_utime = Counter("synapse_http_server_response_ru_utime_seconds", "", ["method", "servlet", "tag"])
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response_ru_stime = Counter("synapse_http_server_response_ru_stime_seconds", "", ["method", "servlet", "tag"])
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response_db_txn_count = Counter("synapse_http_server_response_db_txn_count", "", ["method", "servlet", "tag"])
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# seconds spent waiting for db txns, excluding scheduling time, when processing
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# this request
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response_db_txn_duration = Counter("synapse_http_server_response_db_txn_duration_seconds", "", ["method", "servlet", "tag"])
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# seconds spent waiting for a db connection, when processing this request
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response_db_sched_duration = Counter("synapse_http_request_response_db_sched_duration_seconds", "", ["method", "servlet", "tag"]
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)
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# size in bytes of the response written
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response_size = Counter("synapse_http_request_response_size", "", ["method", "servlet", "tag"]
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)
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class RequestMetrics(object):
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def start(self, time_msec, name):
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self.start = time_msec
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self.start_context = LoggingContext.current_context()
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self.name = name
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def stop(self, time_msec, request):
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context = LoggingContext.current_context()
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tag = ""
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if context:
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tag = context.tag
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if context != self.start_context:
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logger.warn(
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"Context have unexpectedly changed %r, %r",
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context, self.start_context
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)
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return
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outgoing_responses_counter.labels(request.method, str(request.code)).inc()
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response_count.labels(request.method, self.name, tag).inc()
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response_timer.labels(request.method, self.name, tag).observe(time_msec - self.start)
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ru_utime, ru_stime = context.get_resource_usage()
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response_ru_utime.labels(request.method, self.name, tag).inc(ru_utime)
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response_ru_stime.labels(request.method, self.name, tag).inc(ru_stime)
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response_db_txn_count.labels(request.method, self.name, tag).inc(context.db_txn_count)
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response_db_txn_duration.labels(request.method, self.name, tag).inc(context.db_txn_duration_ms / 1000.)
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response_db_sched_duration.labels(request.method, self.name, tag).inc(
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context.db_sched_duration_ms / 1000.)
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response_size.labels(request.method, self.name, tag).inc(request.sentLength)
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