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HBASE-23802 Remove unnecessary Configuration instantiation in LossyAccounting (#1127) 

Signed-off-by: stack <stack@apache.org>
This commit is contained in:
Nick Dimiduk 2020-02-05 14:41:51 -08:00 committed by GitHub
parent b49ec58073
commit 5b4545de5e
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4 changed files with 67 additions and 74 deletions
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47
hbase-server/src/main/java/org/apache/hadoop/hbase/coprocessor/MetaTableMetrics.java
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@ -1,4 +1,4 @@
/**
/*
*
* Licensed to the Apache Software Foundation (ASF) under one
* or more contributor license agreements. See the NOTICE file
@ -20,12 +20,12 @@
package org.apache.hadoop.hbase.coprocessor;
import java.io.IOException;
import java.nio.charset.StandardCharsets;
import java.util.HashSet;
import java.util.List;
import java.util.Optional;
import java.util.Set;
import org.apache.commons.lang3.StringUtils;
import org.apache.hadoop.conf.Configuration;
import org.apache.hadoop.hbase.Cell;
import org.apache.hadoop.hbase.CoprocessorEnvironment;
import org.apache.hadoop.hbase.TableName;
@ -36,13 +36,12 @@ import org.apache.hadoop.hbase.client.Put;
import org.apache.hadoop.hbase.client.Row;
import org.apache.hadoop.hbase.ipc.RpcServer;
import org.apache.hadoop.hbase.metrics.MetricRegistry;
import org.apache.hadoop.hbase.util.Bytes;
import org.apache.hadoop.hbase.util.LossyCounting;
import org.apache.hadoop.hbase.wal.WALEdit;
import org.apache.yetus.audience.InterfaceAudience;
import org.apache.hbase.thirdparty.com.google.common.collect.ImmutableMap;
/**
* A coprocessor that collects metrics from meta table.
* <p>
@ -57,16 +56,16 @@ public class MetaTableMetrics implements RegionCoprocessor {
private ExampleRegionObserverMeta observer;
private MetricRegistry registry;
private LossyCounting clientMetricsLossyCounting, regionMetricsLossyCounting;
private LossyCounting<String> clientMetricsLossyCounting, regionMetricsLossyCounting;
private boolean active = false;
private Set<String> metrics = new HashSet<String>();
private Set<String> metrics = new HashSet<>();
enum MetaTableOps {
GET, PUT, DELETE;
GET, PUT, DELETE,
}
private ImmutableMap<Class, MetaTableOps> opsNameMap =
ImmutableMap.<Class, MetaTableOps>builder()
private ImmutableMap<Class<? extends Row>, MetaTableOps> opsNameMap =
ImmutableMap.<Class<? extends Row>, MetaTableOps>builder()
.put(Put.class, MetaTableOps.PUT)
.put(Get.class, MetaTableOps.GET)
.put(Delete.class, MetaTableOps.DELETE)
@ -93,7 +92,7 @@ public class MetaTableMetrics implements RegionCoprocessor {
@Override
public void preDelete(ObserverContext<RegionCoprocessorEnvironment> e, Delete delete,
WALEdit edit, Durability durability) throws IOException {
WALEdit edit, Durability durability) {
registerAndMarkMetrics(e, delete);
}
@ -113,13 +112,12 @@ public class MetaTableMetrics implements RegionCoprocessor {
* @param op such as get, put or delete.
*/
private String getTableNameFromOp(Row op) {
String tableName = null;
String tableRowKey = new String(((Row) op).getRow(), StandardCharsets.UTF_8);
if (tableRowKey.isEmpty()) {
final String tableRowKey = Bytes.toString(op.getRow());
if (StringUtils.isEmpty(tableRowKey)) {
return null;
}
tableName = tableRowKey.split(",").length > 0 ? tableRowKey.split(",")[0] : null;
return tableName;
final String[] splits = tableRowKey.split(",");
return splits.length > 0 ? splits[0] : null;
}
/**
@ -127,13 +125,12 @@ public class MetaTableMetrics implements RegionCoprocessor {
* @param op such as get, put or delete.
*/
private String getRegionIdFromOp(Row op) {
String regionId = null;
String tableRowKey = new String(((Row) op).getRow(), StandardCharsets.UTF_8);
if (tableRowKey.isEmpty()) {
final String tableRowKey = Bytes.toString(op.getRow());
if (StringUtils.isEmpty(tableRowKey)) {
return null;
}
regionId = tableRowKey.split(",").length > 2 ? tableRowKey.split(",")[2] : null;
return regionId;
final String[] splits = tableRowKey.split(",");
return splits.length > 2 ? splits[2] : null;
}
private boolean isMetaTableOp(ObserverContext<RegionCoprocessorEnvironment> e) {
@ -279,13 +276,13 @@ public class MetaTableMetrics implements RegionCoprocessor {
.equals(TableName.META_TABLE_NAME)) {
RegionCoprocessorEnvironment regionCoprocessorEnv = (RegionCoprocessorEnvironment) env;
registry = regionCoprocessorEnv.getMetricRegistryForRegionServer();
LossyCounting.LossyCountingListener listener =
(LossyCounting.LossyCountingListener<String>) key -> {
LossyCounting.LossyCountingListener<String> listener = key -> {
registry.remove(key);
metrics.remove(key);
};
clientMetricsLossyCounting = new LossyCounting<String>("clientMetaMetrics",listener);
regionMetricsLossyCounting = new LossyCounting<String>("regionMetaMetrics",listener);
final Configuration conf = regionCoprocessorEnv.getConfiguration();
clientMetricsLossyCounting = new LossyCounting<>("clientMetaMetrics", conf, listener);
regionMetricsLossyCounting = new LossyCounting<>("regionMetaMetrics", conf, listener);
// only be active mode when this region holds meta table.
active = true;
}

15
hbase-server/src/main/java/org/apache/hadoop/hbase/regionserver/MetricsUserAggregateImpl.java
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@ -1,4 +1,4 @@
/**
/*
* 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
@ -21,7 +21,6 @@ package org.apache.hadoop.hbase.regionserver;
import java.io.IOException;
import java.net.InetAddress;
import java.util.Optional;
import org.apache.hadoop.conf.Configuration;
import org.apache.hadoop.hbase.CompatibilitySingletonFactory;
import org.apache.hadoop.hbase.ipc.RpcServer;
@ -37,13 +36,12 @@ public class MetricsUserAggregateImpl implements MetricsUserAggregate{
private final UserProvider userProvider;
private final MetricsUserAggregateSource source;
private final LossyCounting userMetricLossyCounting;
private final LossyCounting<MetricsUserSource> userMetricLossyCounting;
public MetricsUserAggregateImpl(Configuration conf) {
source = CompatibilitySingletonFactory.getInstance(MetricsRegionServerSourceFactory.class)
.getUserAggregate();
userMetricLossyCounting = new LossyCounting<MetricsUserSource>("userMetrics",
(LossyCounting.LossyCountingListener<MetricsUserSource>) key -> source.deregister(key));
userMetricLossyCounting = new LossyCounting<>("userMetrics", conf, source::deregister);
this.userProvider = UserProvider.instantiate(conf);
}
@ -61,7 +59,7 @@ public class MetricsUserAggregateImpl implements MetricsUserAggregate{
} catch (IOException ignore) {
}
}
return user.isPresent() ? user.get().getShortName() : null;
return user.map(User::getShortName).orElse(null);
}
@Override
@ -82,10 +80,7 @@ public class MetricsUserAggregateImpl implements MetricsUserAggregate{
private String getClient() {
Optional<InetAddress> ipOptional = RpcServer.getRemoteAddress();
if (ipOptional.isPresent()) {
return ipOptional.get().getHostName();
}
return null;
return ipOptional.map(InetAddress::getHostName).orElse(null);
}
private void incrementClientReadMetrics(MetricsUserSource userSource) {

32
hbase-server/src/main/java/org/apache/hadoop/hbase/util/LossyCounting.java
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@ -1,4 +1,4 @@
/**
/*
*
* Licensed to the Apache Software Foundation (ASF) under one
* or more contributor license agreements. See the NOTICE file
@ -26,13 +26,11 @@ import java.util.concurrent.ExecutorService;
import java.util.concurrent.Executors;
import java.util.concurrent.Future;
import java.util.concurrent.atomic.AtomicReference;
import org.apache.hadoop.hbase.HBaseConfiguration;
import org.apache.hadoop.conf.Configuration;
import org.apache.hadoop.hbase.HConstants;
import org.apache.yetus.audience.InterfaceAudience;
import org.slf4j.Logger;
import org.slf4j.LoggerFactory;
import org.apache.hbase.thirdparty.com.google.common.annotations.VisibleForTesting;
import org.apache.hbase.thirdparty.com.google.common.util.concurrent.ThreadFactoryBuilder;
@ -46,26 +44,27 @@ import org.apache.hbase.thirdparty.com.google.common.util.concurrent.ThreadFacto
* Based on paper:
* http://www.vldb.org/conf/2002/S10P03.pdf
*/
@InterfaceAudience.Private
public class LossyCounting<T> {
private static final Logger LOG = LoggerFactory.getLogger(LossyCounting.class);
private final ExecutorService executor;
private long bucketSize;
private int currentTerm;
private double errorRate;
private Map<T, Integer> data;
private long totalDataCount;
private final String name;
private LossyCountingListener listener;
private static AtomicReference<Future> fut = new AtomicReference<>(null);
private LossyCountingListener<T> listener;
private static AtomicReference<Future<?>> fut = new AtomicReference<>(null);
public interface LossyCountingListener<T> {
void sweep(T key);
}
public LossyCounting(double errorRate, String name, LossyCountingListener listener) {
this.errorRate = errorRate;
LossyCounting(String name, double errorRate) {
this(name, errorRate, null);
}
public LossyCounting(String name, double errorRate, LossyCountingListener<T> listener) {
this.name = name;
if (errorRate < 0.0 || errorRate > 1.0) {
throw new IllegalArgumentException(" Lossy Counting error rate should be within range [0,1]");
@ -80,9 +79,12 @@ public class LossyCounting<T> {
new ThreadFactoryBuilder().setDaemon(true).setNameFormat("lossy-count-%d").build());
}
public LossyCounting(String name, LossyCountingListener listener) {
this(HBaseConfiguration.create().getDouble(HConstants.DEFAULT_LOSSY_COUNTING_ERROR_RATE, 0.02),
name, listener);
LossyCounting(String name, Configuration conf) {
this(name, conf, null);
}
public LossyCounting(String name, Configuration conf, LossyCountingListener<T> listener) {
this(name, conf.getDouble(HConstants.DEFAULT_LOSSY_COUNTING_ERROR_RATE, 0.02), listener);
}
private void addByOne(T key) {
@ -100,7 +102,7 @@ public class LossyCounting<T> {
if(totalDataCount % bucketSize == 0) {
//sweep the entries at bucket boundaries
//run Sweep
Future future = fut.get();
Future<?> future = fut.get();
if (future != null && !future.isDone()){
return;
}
@ -166,7 +168,7 @@ public class LossyCounting<T> {
}
}
@VisibleForTesting public Future getSweepFuture() {
@VisibleForTesting public Future<?> getSweepFuture() {
return fut.get();
}
}

31
hbase-server/src/test/java/org/apache/hadoop/hbase/util/TestLossyCounting.java
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@ -1,4 +1,4 @@
/**
/*
*
* Licensed to the Apache Software Foundation (ASF) under one
* or more contributor license agreements. See the NOTICE file
@ -20,8 +20,10 @@
package org.apache.hadoop.hbase.util;
import static org.junit.Assert.assertEquals;
import static org.junit.Assert.assertTrue;
import org.apache.hadoop.conf.Configuration;
import org.apache.hadoop.hbase.HBaseClassTestRule;
import org.apache.hadoop.hbase.HBaseConfiguration;
import org.apache.hadoop.hbase.testclassification.MiscTests;
import org.apache.hadoop.hbase.testclassification.SmallTests;
import org.junit.ClassRule;
@ -35,17 +37,19 @@ public class TestLossyCounting {
public static final HBaseClassTestRule CLASS_RULE =
HBaseClassTestRule.forClass(TestLossyCounting.class);
private final Configuration conf = HBaseConfiguration.create();
@Test
public void testBucketSize() {
LossyCounting lossyCounting = new LossyCounting(0.01, "testBucketSize", null);
LossyCounting<?> lossyCounting = new LossyCounting<>("testBucketSize", 0.01);
assertEquals(100L, lossyCounting.getBucketSize());
LossyCounting lossyCounting2 = new LossyCounting("testBucketSize2", null);
LossyCounting<?> lossyCounting2 = new LossyCounting<>("testBucketSize2", conf);
assertEquals(50L, lossyCounting2.getBucketSize());
}
@Test
public void testAddByOne() {
LossyCounting lossyCounting = new LossyCounting(0.01, "testAddByOne", null);
LossyCounting<String> lossyCounting = new LossyCounting<>("testAddByOne", 0.01);
for (int i = 0; i < 100; i++) {
String key = "" + i;
lossyCounting.add(key);
@ -53,13 +57,13 @@ public class TestLossyCounting {
assertEquals(100L, lossyCounting.getDataSize());
for (int i = 0; i < 100; i++) {
String key = "" + i;
assertEquals(true, lossyCounting.contains(key));
assertTrue(lossyCounting.contains(key));
}
}
@Test
public void testSweep1() {
LossyCounting lossyCounting = new LossyCounting(0.01, "testSweep1", null);
public void testSweep1() throws Exception {
LossyCounting<String> lossyCounting = new LossyCounting<>("testSweep1", 0.01);
for(int i = 0; i < 400; i++){
String key = "" + i;
lossyCounting.add(key);
@ -72,21 +76,18 @@ public class TestLossyCounting {
assertEquals(lossyCounting.getBucketSize() - 1, lossyCounting.getDataSize());
}
private void waitForSweep(LossyCounting<Object> lossyCounting) {
private void waitForSweep(LossyCounting<?> lossyCounting) throws InterruptedException {
//wait for sweep thread to complete
int retry = 0;
while (!lossyCounting.getSweepFuture().isDone() && retry < 10) {
try {
Thread.sleep(100);
} catch (InterruptedException e) {
}
retry++;
}
}
@Test
public void testSweep2() {
LossyCounting lossyCounting = new LossyCounting(0.1, "testSweep2", null);
public void testSweep2() throws Exception {
LossyCounting<String> lossyCounting = new LossyCounting<>("testSweep2", 0.1);
for (int i = 0; i < 10; i++) {
String key = "" + i;
lossyCounting.add(key);
@ -100,6 +101,4 @@ public class TestLossyCounting {
waitForSweep(lossyCounting);
assertEquals(1L, lossyCounting.getDataSize());
}
}