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1c8451fea1
Trying to debug the 20s delay in requests, it would help to know if the delay happens before or after our code is called. Right now all we know is that the delay happens before our first loggin line, which is in RequestAuthenticator. ------------- Created by MOE: https://github.com/google/moe MOE_MIGRATED_REVID=182211285
68 lines
2.8 KiB
Java
68 lines
2.8 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.module.backend;
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import com.google.appengine.api.LifecycleManager;
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import com.google.monitoring.metrics.MetricReporter;
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import dagger.Lazy;
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import google.registry.util.FormattingLogger;
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import java.io.IOException;
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import java.security.Security;
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import java.util.concurrent.TimeUnit;
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import java.util.concurrent.TimeoutException;
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import javax.servlet.http.HttpServlet;
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import javax.servlet.http.HttpServletRequest;
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import javax.servlet.http.HttpServletResponse;
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import org.bouncycastle.jce.provider.BouncyCastleProvider;
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/** Servlet that should handle all requests to our "backend" App Engine module. */
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public final class BackendServlet extends HttpServlet {
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private static final BackendComponent component = DaggerBackendComponent.create();
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private static final BackendRequestHandler requestHandler = component.requestHandler();
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private static final Lazy<MetricReporter> metricReporter = component.metricReporter();
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private static final FormattingLogger logger = FormattingLogger.getLoggerForCallerClass();
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@Override
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public void init() {
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Security.addProvider(new BouncyCastleProvider());
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// If metric reporter failed to instantiate for any reason (bad keyring, bad json credential,
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// etc), we log the error but keep the main thread running. Also the shutdown hook will only be
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// registered if metric reporter starts up correctly.
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try {
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metricReporter.get().startAsync().awaitRunning(10, TimeUnit.SECONDS);
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logger.info("Started up MetricReporter");
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LifecycleManager.getInstance()
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.setShutdownHook(
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() -> {
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try {
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metricReporter.get().stopAsync().awaitTerminated(10, TimeUnit.SECONDS);
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logger.info("Shut down MetricReporter");
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} catch (TimeoutException timeoutException) {
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logger.severefmt("Failed to stop MetricReporter: %s", timeoutException);
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}
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});
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} catch (Exception e) {
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logger.severefmt(e, "Failed to initialize MetricReporter.");
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}
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}
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@Override
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public void service(HttpServletRequest req, HttpServletResponse rsp) throws IOException {
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logger.info("Received backend request");
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requestHandler.handleRequest(req, rsp);
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}
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}
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