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/*
* 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.TimeUnit;
import org.apache.jackrabbit.oak.stats.HistogramStats;
import org.apache.jackrabbit.oak.stats.MeterStats;
import org.apache.jackrabbit.oak.stats.StatisticsProvider;
import org.apache.jackrabbit.oak.stats.StatsOptions;
import org.apache.jackrabbit.oak.stats.TimerStats;
public class DocumentNodeStoreStats implements DocumentNodeStoreStatsCollector {
private static final String BGR_READ_HEAD = "DOCUMENT_NS_BGR_READ_HEAD";
private static final String BGR_CACHE_INVALIDATE = "DOCUMENT_NS_BGR_CACHE_INVALIDATE";
private static final String BGR_DIFF_CACHE = "DOCUMENT_NS_BGR_DIFF_CACHE";
private static final String BGR_LOCK = "DOCUMENT_NS_BGR_LOCK";
private static final String BGR_DISPATCH = "DOCUMENT_NS_BGR_DISPATCH";
private static final String BGR_TOTAL_TIME = "DOCUMENT_NS_BGR_TOTAL_TIME";
static final String BGR_NUM_CHANGES_RATE = "DOCUMENT_NS_BGR_NUM_CHANGES_RATE";
private static final String BGR_NUM_CHANGES_HISTO = "DOCUMENT_NS_BGR_NUM_CHANGES_HISTO";
private static final String BGW_CLEAN = "DOCUMENT_NS_BGW_CLEAN";
private static final String BGW_SPLIT = "DOCUMENT_NS_BGW_SPLIT";
private static final String BGW_WRITE = "DOCUMENT_NS_BGW_LOCK";
private static final String BGW_SWEEP = "DOCUMENT_NS_BGW_SWEEP";
static final String BGW_NUM = "DOCUMENT_NS_BGW_NUM";
static final String BGW_NUM_WRITES_RATE = "DOCUMENT_NS_BGW_NUM_WRITE_RATE";
private static final String BGW_TOTAL = "DOCUMENT_NS_BGW_TOTAL_TIME";
private static final String MERGE_SUCCESS_NUM_RETRY = "DOCUMENT_NS_MERGE_SUCCESS_RETRY";
static final String MERGE_SUCCESS_COUNT = "DOCUMENT_NS_MERGE_SUCCESS_COUNT";
private static final String MERGE_SUCCESS_TIME = "DOCUMENT_NS_MERGE_SUCCESS_TIME";
private static final String MERGE_SUCCESS_SUSPENDED = "DOCUMENT_NS_MERGE_SUCCESS_SUSPENDED";
private static final String MERGE_SUCCESS_EXCLUSIVE = "DOCUMENT_NS_MERGE_SUCCESS_EXCLUSIVE";
static final String MERGE_FAILED_EXCLUSIVE = "DOCUMENT_NS_MERGE_FAILED_EXCLUSIVE";
private final TimerStats readHead;
private final TimerStats readCacheInvalidate;
private final TimerStats readDiffCache;
private final TimerStats readLock;
private final TimerStats readDispatch;
private final TimerStats readTotalTime;
private final MeterStats numChangesRate;
private final HistogramStats numChangesHisto;
private final TimerStats writeClean;
private final TimerStats writeSplit;
private final TimerStats writeSweep;
private final HistogramStats writeNum;
private final TimerStats writeWrite;
private final TimerStats writeTotal;
private final MeterStats numWritesRate;
private final HistogramStats mergeSuccessRetries;
private final MeterStats mergeSuccessRate;
private final TimerStats mergeSuccessTime;
private final MeterStats mergeSuccessExclusive;
private final MeterStats mergeSuccessSuspended;
private final MeterStats mergeFailedExclusive;
public DocumentNodeStoreStats(StatisticsProvider sp) {
readHead = sp.getTimer(BGR_READ_HEAD, StatsOptions.METRICS_ONLY);
readCacheInvalidate = sp.getTimer(BGR_CACHE_INVALIDATE, StatsOptions.METRICS_ONLY);
readDiffCache = sp.getTimer(BGR_DIFF_CACHE, StatsOptions.METRICS_ONLY);
readLock = sp.getTimer(BGR_LOCK, StatsOptions.METRICS_ONLY);
readDispatch = sp.getTimer(BGR_DISPATCH, StatsOptions.METRICS_ONLY);
readTotalTime = sp.getTimer(BGR_TOTAL_TIME, StatsOptions.METRICS_ONLY);
numChangesRate = sp.getMeter(BGR_NUM_CHANGES_RATE, StatsOptions.DEFAULT); //Enable time series
numChangesHisto = sp.getHistogram(BGR_NUM_CHANGES_HISTO, StatsOptions.METRICS_ONLY);
writeClean = sp.getTimer(BGW_CLEAN, StatsOptions.METRICS_ONLY);
writeSplit = sp.getTimer(BGW_SPLIT, StatsOptions.METRICS_ONLY);
writeSweep = sp.getTimer(BGW_SWEEP, StatsOptions.METRICS_ONLY);
writeWrite = sp.getTimer(BGW_WRITE, StatsOptions.METRICS_ONLY);
writeTotal = sp.getTimer(BGW_TOTAL, StatsOptions.METRICS_ONLY);
writeNum = sp.getHistogram(BGW_NUM, StatsOptions.METRICS_ONLY);
numWritesRate = sp.getMeter(BGW_NUM_WRITES_RATE, StatsOptions.DEFAULT); //Enable time series
mergeSuccessRetries = sp.getHistogram(MERGE_SUCCESS_NUM_RETRY, StatsOptions.METRICS_ONLY);
mergeSuccessRate = sp.getMeter(MERGE_SUCCESS_COUNT, StatsOptions.DEFAULT); //Enable time series
mergeSuccessTime = sp.getTimer(MERGE_SUCCESS_TIME, StatsOptions.METRICS_ONLY);
mergeSuccessExclusive = sp.getMeter(MERGE_SUCCESS_EXCLUSIVE, StatsOptions.METRICS_ONLY);
mergeSuccessSuspended = sp.getMeter(MERGE_SUCCESS_SUSPENDED, StatsOptions.METRICS_ONLY);
mergeFailedExclusive = sp.getMeter(MERGE_FAILED_EXCLUSIVE, StatsOptions.DEFAULT); //Enable time series
}
@Override
public void doneBackgroundRead(BackgroundReadStats stats) {
readHead.update(stats.readHead, TimeUnit.MILLISECONDS);
readCacheInvalidate.update(stats.cacheInvalidationTime, TimeUnit.MILLISECONDS);
readDiffCache.update(stats.populateDiffCache, TimeUnit.MILLISECONDS);
readLock.update(stats.lock, TimeUnit.MILLISECONDS);
readDispatch.update(stats.dispatchChanges, TimeUnit.MILLISECONDS);
readTotalTime.update(stats.totalReadTime, TimeUnit.MILLISECONDS);
//Record rate of num of external changes pulled per second
numChangesRate.mark(stats.numExternalChanges);
numChangesHisto.update(stats.numExternalChanges);
}
@Override
public void doneBackgroundUpdate(BackgroundWriteStats stats) {
writeClean.update(stats.clean, TimeUnit.MILLISECONDS);
writeSplit.update(stats.split, TimeUnit.MILLISECONDS);
writeSweep.update(stats.sweep, TimeUnit.MILLISECONDS);
writeWrite.update(stats.write, TimeUnit.MILLISECONDS);
writeTotal.update(stats.totalWriteTime, TimeUnit.MILLISECONDS);
writeNum.update(stats.num);
//Record rate of num of bg writes pushed per second
numWritesRate.mark(stats.num);
}
@Override
public void doneMerge(int numRetries, long timeTaken, boolean suspended, boolean exclusive) {
mergeSuccessRate.mark();
mergeSuccessRetries.update(numRetries);
mergeSuccessTime.update(timeTaken, TimeUnit.MILLISECONDS);
if (exclusive) {
mergeSuccessExclusive.mark();
}
if (suspended) {
mergeSuccessSuspended.mark();
}
}
@Override
public void failedMerge(int numRetries, long time, boolean suspended, boolean exclusive) {
if (exclusive){
mergeFailedExclusive.mark();
}
}
}
