109 lines
3.6 KiB
Java
109 lines
3.6 KiB
Java
// Copyright (C) 2017 The Android Open Source Project
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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 com.google.gerrit.server.notedb.rebuild;
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import com.google.common.base.Stopwatch;
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import com.google.gerrit.extensions.events.LifecycleListener;
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import com.google.gerrit.lifecycle.LifecycleModule;
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import com.google.gerrit.server.config.GerritServerConfig;
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import com.google.gerrit.server.index.OnlineUpgrader;
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import com.google.gerrit.server.index.VersionManager;
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import com.google.inject.Inject;
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import com.google.inject.Provider;
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import com.google.inject.Singleton;
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import com.google.inject.name.Named;
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import com.google.inject.name.Names;
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import java.util.concurrent.TimeUnit;
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import org.eclipse.jgit.lib.Config;
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import org.slf4j.Logger;
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import org.slf4j.LoggerFactory;
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@Singleton
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public class OnlineNoteDbMigrator implements LifecycleListener {
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private static final Logger log = LoggerFactory.getLogger(OnlineNoteDbMigrator.class);
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private static final String TRIAL = "OnlineNoteDbMigrator/trial";
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public static class Module extends LifecycleModule {
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private final boolean trial;
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public Module(boolean trial) {
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this.trial = trial;
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}
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@Override
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public void configure() {
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listener().to(OnlineNoteDbMigrator.class);
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bindConstant().annotatedWith(Names.named(TRIAL)).to(trial);
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}
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}
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private final GcAllUsers gcAllUsers;
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private final OnlineUpgrader indexUpgrader;
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private final Provider<NoteDbMigrator.Builder> migratorBuilderProvider;
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private final boolean upgradeIndex;
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private final boolean trial;
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@Inject
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OnlineNoteDbMigrator(
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@GerritServerConfig Config cfg,
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GcAllUsers gcAllUsers,
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OnlineUpgrader indexUpgrader,
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Provider<NoteDbMigrator.Builder> migratorBuilderProvider,
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@Named(TRIAL) boolean trial) {
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this.gcAllUsers = gcAllUsers;
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this.indexUpgrader = indexUpgrader;
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this.migratorBuilderProvider = migratorBuilderProvider;
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this.upgradeIndex = VersionManager.getOnlineUpgrade(cfg);
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this.trial = trial || NoteDbMigrator.getTrialMode(cfg);
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}
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@Override
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public void start() {
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Thread t = new Thread(this::migrate);
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t.setDaemon(true);
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t.setName(getClass().getSimpleName());
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t.start();
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}
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private void migrate() {
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log.info("Starting online NoteDb migration");
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if (upgradeIndex) {
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log.info("Online index schema upgrades will be deferred until NoteDb migration is complete");
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}
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Stopwatch sw = Stopwatch.createStarted();
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// TODO(dborowitz): Tune threads, maybe expose a progress monitor somewhere.
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try (NoteDbMigrator migrator =
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migratorBuilderProvider.get().setAutoMigrate(true).setTrialMode(trial).build()) {
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migrator.migrate();
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} catch (Exception e) {
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log.error("Error in online NoteDb migration", e);
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}
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gcAllUsers.runWithLogger();
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log.info("Online NoteDb migration completed in {}s", sw.elapsed(TimeUnit.SECONDS));
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if (upgradeIndex) {
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log.info("Starting deferred index schema upgrades");
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indexUpgrader.start();
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}
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}
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@Override
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public void stop() {
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// Do nothing; upgrade process uses daemon threads and knows how to recover from failures on
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// next attempt.
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}
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}
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