Summary: Closes https://github.com/facebook/rocksdb/pull/2551 Differential Revision: D5399288 Pulled By: sagar0 fbshipit-source-id: dd3df2ed6cc5ae612db0998ea746cc29fccf568emain
Adam Retter
8 years ago
committed by
Facebook Github Bot
parent
269d383d5d
commit
000bf0af38
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// Copyright (c) 2011-present, Facebook, Inc. All rights reserved.
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// This source code is licensed under the BSD-style license found in the
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// LICENSE file in the root directory of this source tree. An additional grant
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// of patent rights can be found in the PATENTS file in the same directory.
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//
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// This file implements the callback "bridge" between Java and C++ for
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// rocksdb::Statistics
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#include "rocksjni/statisticsjni.h" |
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namespace rocksdb { |
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StatisticsJni::StatisticsJni(std::shared_ptr<Statistics> stats) |
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: StatisticsImpl(stats, false), m_ignore_histograms() { |
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} |
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StatisticsJni::StatisticsJni(std::shared_ptr<Statistics> stats, |
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const std::set<uint32_t> ignore_histograms) : StatisticsImpl(stats, false), |
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m_ignore_histograms(ignore_histograms) { |
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} |
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bool StatisticsJni::HistEnabledForType(uint32_t type) const { |
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if (type >= HISTOGRAM_ENUM_MAX) { |
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return false; |
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} |
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if (m_ignore_histograms.count(type) > 0) { |
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return false; |
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} |
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return true; |
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} |
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}; |
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// Copyright (c) 2011-present, Facebook, Inc. All rights reserved.
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// This source code is licensed under the BSD-style license found in the
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// LICENSE file in the root directory of this source tree. An additional grant
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// of patent rights can be found in the PATENTS file in the same directory.
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//
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// This file implements the callback "bridge" between Java and C++ for
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// rocksdb::Statistics
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#ifndef JAVA_ROCKSJNI_STATISTICSJNI_H_ |
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#define JAVA_ROCKSJNI_STATISTICSJNI_H_ |
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#include <memory> |
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#include <set> |
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#include <string> |
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#include "rocksdb/statistics.h" |
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#include "monitoring/statistics.h" |
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namespace rocksdb { |
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class StatisticsJni : public StatisticsImpl { |
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public: |
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StatisticsJni(std::shared_ptr<Statistics> stats); |
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StatisticsJni(std::shared_ptr<Statistics> stats, |
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const std::set<uint32_t> ignore_histograms); |
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virtual bool HistEnabledForType(uint32_t type) const override; |
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private: |
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const std::set<uint32_t> m_ignore_histograms; |
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}; |
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} // namespace rocksdb
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#endif // JAVA_ROCKSJNI_STATISTICSJNI_H_
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// Copyright (c) 2011-present, Facebook, Inc. All rights reserved.
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// This source code is licensed under the BSD-style license found in the
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// LICENSE file in the root directory of this source tree. An additional grant
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// of patent rights can be found in the PATENTS file in the same directory.
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package org.rocksdb; |
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/** |
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* The level of Statistics to report. |
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*/ |
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public enum StatsLevel { |
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/** |
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* Collect all stats except time inside mutex lock AND time spent on |
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* compression. |
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*/ |
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EXCEPT_DETAILED_TIMERS((byte) 0x0), |
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/** |
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* Collect all stats except the counters requiring to get time inside the |
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* mutex lock. |
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*/ |
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EXCEPT_TIME_FOR_MUTEX((byte) 0x1), |
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/** |
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* Collect all stats, including measuring duration of mutex operations. |
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* |
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* If getting time is expensive on the platform to run, it can |
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* reduce scalability to more threads, especially for writes. |
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*/ |
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ALL((byte) 0x2); |
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private final byte value; |
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StatsLevel(final byte value) { |
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this.value = value; |
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} |
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/** |
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* <p>Returns the byte value of the enumerations value.</p> |
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* |
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* @return byte representation |
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*/ |
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public byte getValue() { |
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return value; |
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} |
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/** |
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* Get StatsLevel by byte value. |
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* |
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* @param value byte representation of StatsLevel. |
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* |
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* @return {@link org.rocksdb.StatsLevel} instance. |
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* @throws java.lang.IllegalArgumentException if an invalid |
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* value is provided. |
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*/ |
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public static StatsLevel getStatsLevel(final byte value) { |
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for (final StatsLevel statsLevel : StatsLevel.values()) { |
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if (statsLevel.getValue() == value){ |
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return statsLevel; |
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} |
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} |
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throw new IllegalArgumentException( |
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"Illegal value provided for InfoLogLevel."); |
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} |
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} |
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// Copyright (c) 2011-present, Facebook, Inc. All rights reserved.
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// This source code is licensed under the BSD-style license found in the
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// LICENSE file in the root directory of this source tree. An additional grant
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// of patent rights can be found in the PATENTS file in the same directory.
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package org.rocksdb; |
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import org.junit.ClassRule; |
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import org.junit.Rule; |
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import org.junit.Test; |
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import org.junit.rules.TemporaryFolder; |
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import java.nio.charset.StandardCharsets; |
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import static org.assertj.core.api.Assertions.assertThat; |
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public class StatisticsTest { |
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@ClassRule |
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public static final RocksMemoryResource rocksMemoryResource = |
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new RocksMemoryResource(); |
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@Rule |
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public TemporaryFolder dbFolder = new TemporaryFolder(); |
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@Test |
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public void statsLevel() throws RocksDBException { |
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final Statistics statistics = new Statistics(); |
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statistics.setStatsLevel(StatsLevel.ALL); |
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assertThat(statistics.statsLevel()).isEqualTo(StatsLevel.ALL); |
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} |
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@Test |
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public void getTickerCount() throws RocksDBException { |
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try (final Statistics statistics = new Statistics(); |
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final Options opt = new Options() |
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.setStatistics(statistics) |
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.setCreateIfMissing(true); |
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final RocksDB db = RocksDB.open(opt, |
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dbFolder.getRoot().getAbsolutePath())) { |
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final byte[] key = "some-key".getBytes(StandardCharsets.UTF_8); |
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final byte[] value = "some-value".getBytes(StandardCharsets.UTF_8); |
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db.put(key, value); |
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for(int i = 0; i < 10; i++) { |
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db.get(key); |
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} |
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assertThat(statistics.getTickerCount(TickerType.BYTES_READ)).isGreaterThan(0); |
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} |
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} |
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@Test |
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public void getAndResetTickerCount() throws RocksDBException { |
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try (final Statistics statistics = new Statistics(); |
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final Options opt = new Options() |
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.setStatistics(statistics) |
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.setCreateIfMissing(true); |
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final RocksDB db = RocksDB.open(opt, |
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dbFolder.getRoot().getAbsolutePath())) { |
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final byte[] key = "some-key".getBytes(StandardCharsets.UTF_8); |
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final byte[] value = "some-value".getBytes(StandardCharsets.UTF_8); |
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db.put(key, value); |
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for(int i = 0; i < 10; i++) { |
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db.get(key); |
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} |
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final long read = statistics.getAndResetTickerCount(TickerType.BYTES_READ); |
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assertThat(read).isGreaterThan(0); |
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final long readAfterReset = statistics.getTickerCount(TickerType.BYTES_READ); |
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assertThat(readAfterReset).isLessThan(read); |
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} |
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} |
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@Test |
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public void getHistogramData() throws RocksDBException { |
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try (final Statistics statistics = new Statistics(); |
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final Options opt = new Options() |
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.setStatistics(statistics) |
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.setCreateIfMissing(true); |
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final RocksDB db = RocksDB.open(opt, |
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dbFolder.getRoot().getAbsolutePath())) { |
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final byte[] key = "some-key".getBytes(StandardCharsets.UTF_8); |
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final byte[] value = "some-value".getBytes(StandardCharsets.UTF_8); |
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db.put(key, value); |
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for(int i = 0; i < 10; i++) { |
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db.get(key); |
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} |
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final HistogramData histogramData = statistics.getHistogramData(HistogramType.BYTES_PER_READ); |
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assertThat(histogramData).isNotNull(); |
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assertThat(histogramData.getAverage()).isGreaterThan(0); |
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} |
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} |
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@Test |
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public void getHistogramString() throws RocksDBException { |
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try (final Statistics statistics = new Statistics(); |
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final Options opt = new Options() |
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.setStatistics(statistics) |
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.setCreateIfMissing(true); |
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final RocksDB db = RocksDB.open(opt, |
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dbFolder.getRoot().getAbsolutePath())) { |
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final byte[] key = "some-key".getBytes(StandardCharsets.UTF_8); |
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final byte[] value = "some-value".getBytes(StandardCharsets.UTF_8); |
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for(int i = 0; i < 10; i++) { |
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db.put(key, value); |
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} |
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assertThat(statistics.getHistogramString(HistogramType.BYTES_PER_WRITE)).isNotNull(); |
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} |
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} |
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@Test |
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public void reset() throws RocksDBException { |
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try (final Statistics statistics = new Statistics(); |
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final Options opt = new Options() |
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.setStatistics(statistics) |
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.setCreateIfMissing(true); |
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final RocksDB db = RocksDB.open(opt, |
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dbFolder.getRoot().getAbsolutePath())) { |
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final byte[] key = "some-key".getBytes(StandardCharsets.UTF_8); |
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final byte[] value = "some-value".getBytes(StandardCharsets.UTF_8); |
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db.put(key, value); |
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for(int i = 0; i < 10; i++) { |
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db.get(key); |
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} |
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final long read = statistics.getTickerCount(TickerType.BYTES_READ); |
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assertThat(read).isGreaterThan(0); |
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statistics.reset(); |
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final long readAfterReset = statistics.getTickerCount(TickerType.BYTES_READ); |
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assertThat(readAfterReset).isLessThan(read); |
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} |
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} |
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@Test |
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public void ToString() throws RocksDBException { |
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try (final Statistics statistics = new Statistics(); |
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final Options opt = new Options() |
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.setStatistics(statistics) |
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.setCreateIfMissing(true); |
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final RocksDB db = RocksDB.open(opt, |
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dbFolder.getRoot().getAbsolutePath())) { |
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assertThat(statistics.toString()).isNotNull(); |
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} |
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} |
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} |
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