| /* |
| * Licensed to the Apache Software Foundation (ASF) under one |
| * or more contributor license agreements. See the NOTICE file |
| * distributed with this work for additional information |
| * regarding copyright ownership. The ASF licenses this file |
| * to you under the Apache License, Version 2.0 (the |
| * "License"); you may not use this file except in compliance |
| * with the License. You may obtain a copy of the License at |
| * |
| * http://www.apache.org/licenses/LICENSE-2.0 |
| * |
| * Unless required by applicable law or agreed to in writing, |
| * software distributed under the License is distributed on an |
| * "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY |
| * KIND, either express or implied. See the License for the |
| * specific language governing permissions and limitations |
| * under the License. |
| */ |
| package org.apache.jackrabbit.oak.plugins.document; |
| |
| import java.util.concurrent.ScheduledExecutorService; |
| |
| import com.codahale.metrics.Counter; |
| import com.codahale.metrics.Meter; |
| import com.codahale.metrics.Timer; |
| |
| import org.apache.jackrabbit.oak.commons.concurrent.ExecutorCloser; |
| import org.apache.jackrabbit.oak.plugins.document.VersionGarbageCollector.VersionGCStats; |
| import org.apache.jackrabbit.oak.plugins.metric.MetricStatisticsProvider; |
| import org.junit.After; |
| import org.junit.Test; |
| |
| import static java.lang.management.ManagementFactory.getPlatformMBeanServer; |
| import static java.util.concurrent.Executors.newSingleThreadScheduledExecutor; |
| import static java.util.concurrent.TimeUnit.MILLISECONDS; |
| import static java.util.concurrent.TimeUnit.NANOSECONDS; |
| import static org.apache.jackrabbit.oak.plugins.document.RevisionGCStats.RGC; |
| import static org.junit.Assert.assertEquals; |
| import static org.junit.Assert.assertTrue; |
| |
| public class RevisionGCStatsTest { |
| |
| private ScheduledExecutorService executor = newSingleThreadScheduledExecutor(); |
| private MetricStatisticsProvider statsProvider = |
| new MetricStatisticsProvider(getPlatformMBeanServer(), executor); |
| private RevisionGCStats stats = new RevisionGCStats(statsProvider); |
| |
| @After |
| public void shutDown(){ |
| statsProvider.close(); |
| new ExecutorCloser(executor).close(); |
| } |
| |
| @Test |
| public void getReadDocCount() { |
| Meter m = getMeter(RevisionGCStats.READ_DOC); |
| long count = m.getCount(); |
| stats.documentRead(); |
| assertEquals(count + 1, m.getCount()); |
| assertEquals(count + 1, stats.getReadDocCount()); |
| } |
| |
| @Test |
| public void getDeletedDocCount() { |
| Meter m = getMeter(RevisionGCStats.DELETE_DOC); |
| long count = m.getCount(); |
| stats.documentsDeleted(17); |
| assertEquals(count + 17, m.getCount()); |
| assertEquals(count + 17, stats.getDeletedDocCount()); |
| } |
| |
| @Test |
| public void getDeletedLeafDocCount() { |
| Meter m = getMeter(RevisionGCStats.DELETE_LEAF_DOC); |
| long count = m.getCount(); |
| stats.leafDocumentsDeleted(17); |
| assertEquals(count + 17, m.getCount()); |
| assertEquals(count + 17, stats.getDeletedLeafDocCount()); |
| } |
| |
| @Test |
| public void getDeletedSplitDocCount() { |
| Meter m = getMeter(RevisionGCStats.DELETE_SPLIT_DOC); |
| long count = m.getCount(); |
| stats.splitDocumentsDeleted(17); |
| assertEquals(count + 17, m.getCount()); |
| assertEquals(count + 17, stats.getDeletedSplitDocCount()); |
| } |
| |
| @Test |
| public void getDeletedIntSplitDocCount() { |
| Meter m = getMeter(RevisionGCStats.DELETE_INT_SPLIT_DOC); |
| long count = m.getCount(); |
| stats.intermediateSplitDocumentsDeleted(17); |
| assertEquals(count + 17, m.getCount()); |
| assertEquals(count + 17, stats.getDeletedIntSplitDocCount()); |
| } |
| |
| @Test |
| public void getResetDeletedFlagCount() { |
| Meter m = getMeter(RevisionGCStats.RESET_DELETED_FLAG); |
| long count = m.getCount(); |
| stats.deletedOnceFlagReset(); |
| assertEquals(count + 1, m.getCount()); |
| assertEquals(count + 1, stats.getResetDeletedFlagCount()); |
| } |
| |
| @Test |
| public void timers() { |
| VersionGCStats vgcs = new VersionGCStats(); |
| vgcs.collectDeletedDocsElapsed = MILLISECONDS.toMicros(2); |
| vgcs.checkDeletedDocsElapsed = MILLISECONDS.toMicros(3); |
| vgcs.deleteDeletedDocsElapsed = MILLISECONDS.toMicros(5); |
| vgcs.collectAndDeleteSplitDocsElapsed = MILLISECONDS.toMicros(7); |
| vgcs.sortDocIdsElapsed = MILLISECONDS.toMicros(11); |
| vgcs.updateResurrectedDocumentsElapsed = MILLISECONDS.toMicros(13); |
| vgcs.active.start(); |
| while (vgcs.active.elapsed(MILLISECONDS) < 5) { |
| // busy wait |
| assertTrue(vgcs.active.isRunning()); |
| } |
| vgcs.active.stop(); |
| |
| stats.finished(vgcs); |
| assertTimer(vgcs.active.elapsed(MILLISECONDS), RevisionGCStats.ACTIVE_TIMER); |
| assertTimer(2, RevisionGCStats.READ_DOC_TIMER); |
| assertTimer(3, RevisionGCStats.CHECK_DELETED_TIMER); |
| assertTimer(5, RevisionGCStats.DELETE_DOC_TIMER); |
| assertTimer(7, RevisionGCStats.DELETE_SPLIT_DOC_TIMER); |
| assertTimer(11, RevisionGCStats.SORT_IDS_TIMER); |
| assertTimer(13, RevisionGCStats.RESET_DELETED_FLAG_TIMER); |
| } |
| |
| @Test |
| public void counters() { |
| Counter counter = getCounter(RevisionGCStats.COUNTER); |
| Counter failureCounter = getCounter(RevisionGCStats.FAILURE_COUNTER); |
| |
| VersionGCStats vgcs = new VersionGCStats(); |
| stats.started(); |
| stats.finished(vgcs); |
| assertEquals(1, counter.getCount()); |
| assertEquals(0, failureCounter.getCount()); |
| |
| vgcs.success = false; |
| stats.started(); |
| stats.finished(vgcs); |
| assertEquals(2, counter.getCount()); |
| assertEquals(1, failureCounter.getCount()); |
| } |
| |
| private void assertTimer(long expected, String name) { |
| assertEquals(expected, NANOSECONDS.toMillis(getTimer(name).getSnapshot().getMax())); |
| } |
| |
| private Timer getTimer(String name) { |
| return statsProvider.getRegistry().getTimers().get(RGC + "." + name); |
| } |
| |
| private Meter getMeter(String name) { |
| return statsProvider.getRegistry().getMeters().get(RGC + "." + name); |
| } |
| |
| private Counter getCounter(String name) { |
| return statsProvider.getRegistry().getCounters().get(RGC + "." + name); |
| } |
| |
| } |