mirror of
https://github.com/google/nomulus.git
synced 2025-05-02 13:07:50 +02:00
7e42ee48a4
Dagger updated to 2.13, along with all its dependencies. Also allows us to have multiple config files for different environment (prod, sandbox, alpha, local, etc) and specify which one to use on the command line with a --env flag. Therefore the same binary can be used in all environments. ------------- Created by MOE: https://github.com/google/moe MOE_MIGRATED_REVID=176551289
125 lines
4.8 KiB
Java
125 lines
4.8 KiB
Java
// Copyright 2017 The Nomulus Authors. All Rights Reserved.
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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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package google.registry.proxy.metric;
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import com.google.common.collect.ImmutableSet;
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import google.registry.monitoring.metrics.CustomFitter;
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import google.registry.monitoring.metrics.EventMetric;
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import google.registry.monitoring.metrics.ExponentialFitter;
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import google.registry.monitoring.metrics.FibonacciFitter;
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import google.registry.monitoring.metrics.IncrementableMetric;
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import google.registry.monitoring.metrics.LabelDescriptor;
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import google.registry.monitoring.metrics.MetricRegistryImpl;
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import google.registry.util.NonFinalForTesting;
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import io.netty.handler.codec.http.FullHttpRequest;
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import io.netty.handler.codec.http.FullHttpResponse;
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import javax.inject.Inject;
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/** Backend metrics instrumentation. */
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public class BackendMetrics {
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// Maximum request size is defined in the config file, this is not realistic and we'd be out of
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// memory when the size approach 1 GB.
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private static final CustomFitter DEFAULT_SIZE_FITTER = FibonacciFitter.create(1073741824);
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// Maximum 1 hour latency, this is not specified by the spec, but given we have a one hour idle
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// timeout, it seems reasonable that maximum latency is set to 1 hour as well. If we are
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// approaching anywhere near 1 hour latency, we'd be way out of SLO anyway.
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private static final ExponentialFitter DEFAULT_LATENCY_FITTER =
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ExponentialFitter.create(22, 2, 1.0);
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private static final ImmutableSet<LabelDescriptor> LABELS =
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ImmutableSet.of(
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LabelDescriptor.create("protocol", "Name of the protocol."),
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LabelDescriptor.create(
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"client_cert_hash", "SHA256 hash of the client certificate, if available."));
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static final IncrementableMetric requestsCounter =
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MetricRegistryImpl.getDefault()
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.newIncrementableMetric(
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"/proxy/backend/requests",
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"Total number of requests send to the backend.",
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"Requests",
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LABELS);
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static final IncrementableMetric responsesCounter =
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MetricRegistryImpl.getDefault()
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.newIncrementableMetric(
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"/proxy/backend/responses",
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"Total number of responses received by the backend.",
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"Responses",
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ImmutableSet.<LabelDescriptor>builder()
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.addAll(LABELS)
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.add(LabelDescriptor.create("status", "HTTP status code."))
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.build());
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static final EventMetric requestBytes =
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MetricRegistryImpl.getDefault()
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.newEventMetric(
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"/proxy/backend/request_bytes",
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"Size of the backend requests sent.",
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"Bytes",
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LABELS,
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DEFAULT_SIZE_FITTER);
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static final EventMetric responseBytes =
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MetricRegistryImpl.getDefault()
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.newEventMetric(
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"/proxy/backend/response_bytes",
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"Size of the backend responses received.",
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"Bytes",
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LABELS,
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DEFAULT_SIZE_FITTER);
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static final EventMetric latencyMs =
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MetricRegistryImpl.getDefault()
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.newEventMetric(
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"/proxy/backend/latency_ms",
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"Round-trip time between a request sent and its corresponding response received.",
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"Milliseconds",
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LABELS,
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DEFAULT_LATENCY_FITTER);
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@Inject
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BackendMetrics() {}
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/**
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* Resets all backend metrics.
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*
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* <p>This should only used in tests to clear out states. No production code should call this
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* function.
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*/
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void resetMetric() {
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requestBytes.reset();
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requestsCounter.reset();
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responseBytes.reset();
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responsesCounter.reset();
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latencyMs.reset();
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}
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@NonFinalForTesting
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public void requestSent(String protocol, String certHash, FullHttpRequest request) {
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requestsCounter.increment(protocol, certHash);
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requestBytes.record(request.content().readableBytes(), protocol, certHash);
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}
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@NonFinalForTesting
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public void responseReceived(
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String protocol, String certHash, FullHttpResponse response, long latency) {
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latencyMs.record(latency, protocol, certHash);
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responseBytes.record(response.content().readableBytes(), protocol, certHash);
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responsesCounter.increment(protocol, certHash, response.status().toString());
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}
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}
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