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Merge pull request #1110 from Graylog2/fix-cluster-event-bus
Fix cluster event bus
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114 changes: 114 additions & 0 deletions
114
graylog2-server/src/main/java/org/graylog2/events/ClusterEventCleanupPeriodical.java
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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 +1,114 @@ | ||
| /** | ||
| * This file is part of Graylog. | ||
| * | ||
| * Graylog is free software: you can redistribute it and/or modify | ||
| * it under the terms of the GNU General Public License as published by | ||
| * the Free Software Foundation, either version 3 of the License, or | ||
| * (at your option) any later version. | ||
| * | ||
| * Graylog is distributed in the hope that it will be useful, | ||
| * but WITHOUT ANY WARRANTY; without even the implied warranty of | ||
| * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the | ||
| * GNU General Public License for more details. | ||
| * | ||
| * You should have received a copy of the GNU General Public License | ||
| * along with Graylog. If not, see <http://www.gnu.org/licenses/>. | ||
| */ | ||
| package org.graylog2.events; | ||
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| import com.google.common.annotations.VisibleForTesting; | ||
| import com.google.common.primitives.Ints; | ||
| import com.mongodb.WriteConcern; | ||
| import org.graylog2.bindings.providers.MongoJackObjectMapperProvider; | ||
| import org.graylog2.database.MongoConnection; | ||
| import org.graylog2.plugin.periodical.Periodical; | ||
| import org.joda.time.DateTime; | ||
| import org.joda.time.DateTimeZone; | ||
| import org.mongojack.DBQuery; | ||
| import org.mongojack.JacksonDBCollection; | ||
| import org.mongojack.WriteResult; | ||
| import org.slf4j.Logger; | ||
| import org.slf4j.LoggerFactory; | ||
|
|
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| import javax.inject.Inject; | ||
| import java.util.concurrent.TimeUnit; | ||
|
|
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| import static com.google.common.base.Preconditions.checkNotNull; | ||
|
|
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| public class ClusterEventCleanupPeriodical extends Periodical { | ||
| private static final Logger LOG = LoggerFactory.getLogger(ClusterEventCleanupPeriodical.class); | ||
| private static final String COLLECTION_NAME = ClusterEventPeriodical.COLLECTION_NAME; | ||
|
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| @VisibleForTesting | ||
| static final long DEFAULT_MAX_EVENT_AGE = TimeUnit.HOURS.toMillis(1L); | ||
|
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| private final JacksonDBCollection<ClusterEvent, String> dbCollection; | ||
| private final long maxEventAge; | ||
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| @Inject | ||
| public ClusterEventCleanupPeriodical(final MongoJackObjectMapperProvider mapperProvider, | ||
| final MongoConnection mongoConnection) { | ||
| this(JacksonDBCollection.wrap(mongoConnection.getDatabase().getCollection(COLLECTION_NAME), | ||
| ClusterEvent.class, String.class, mapperProvider.get()), DEFAULT_MAX_EVENT_AGE); | ||
| } | ||
|
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| ClusterEventCleanupPeriodical(final JacksonDBCollection<ClusterEvent, String> dbCollection, final long maxEventAge) { | ||
| this.dbCollection = checkNotNull(dbCollection); | ||
| this.maxEventAge = maxEventAge; | ||
| } | ||
|
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| @Override | ||
| public boolean runsForever() { | ||
| return false; | ||
| } | ||
|
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| @Override | ||
| public boolean stopOnGracefulShutdown() { | ||
| return true; | ||
| } | ||
|
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| @Override | ||
| public boolean masterOnly() { | ||
| return true; | ||
| } | ||
|
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| @Override | ||
| public boolean startOnThisNode() { | ||
| return true; | ||
| } | ||
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| @Override | ||
| public boolean isDaemon() { | ||
| return true; | ||
| } | ||
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| @Override | ||
| public int getInitialDelaySeconds() { | ||
| return 0; | ||
| } | ||
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| @Override | ||
| public int getPeriodSeconds() { | ||
| return Ints.saturatedCast(TimeUnit.MINUTES.toSeconds(5L)); | ||
| } | ||
|
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| @Override | ||
| protected Logger getLogger() { | ||
| return LOG; | ||
| } | ||
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| @Override | ||
| public void doRun() { | ||
| try { | ||
| LOG.debug("Removing stale events from MongoDB collection \"{}\"", COLLECTION_NAME); | ||
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| final long timestamp = DateTime.now(DateTimeZone.UTC).getMillis() - maxEventAge; | ||
| final DBQuery.Query query = DBQuery.lessThan("timestamp", timestamp); | ||
| final WriteResult<ClusterEvent, String> writeResult = dbCollection.remove(query, WriteConcern.MAJORITY); | ||
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| LOG.debug("Removed {} stale events from \"{}\"", writeResult.getN(), COLLECTION_NAME); | ||
| } catch (Exception e) { | ||
| LOG.warn("Error while removing stale cluster events from MongoDB", e); | ||
| } | ||
| } | ||
| } |
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