SOLR-10182 Remove metrics collection at Directory level.

This commit is contained in:
Andrzej Bialecki 2017-02-27 14:39:13 +01:00
parent 048b24c64a
commit a248e6e3c0
9 changed files with 7 additions and 620 deletions

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@ -270,9 +270,10 @@ Detailed Change List
Bug Fixes
----------------------
* SOLR-10130: Serious performance degradation in Solr 6.4.1 due to the new metrics collection.
* SOLR-10130, SOLR-10182: Serious performance degradation in Solr 6.4.1 due to the new metrics collection.
Default settings in solrconfig.xml /config/indexConfig/metrics have been changed to turn off
IndexWriter and Directory level metrics collection. (ab, ishan)
IndexWriter metrics collection. Directory level metrics collection has been completely removed until
a better design is found. (ab, ishan)
* SOLR-10138: Transaction log replay can hit an NPE due to new Metrics code. (ab)

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@ -411,13 +411,6 @@ public abstract class DirectoryFactory implements NamedListInitializedPlugin,
dirFactory = new NRTCachingDirectoryFactory();
dirFactory.initCoreContainer(cc);
}
if (config.indexConfig.metricsInfo != null && config.indexConfig.metricsInfo.isEnabled()) {
final DirectoryFactory factory = new MetricsDirectoryFactory(cc.getMetricManager(),
registryName, dirFactory);
factory.init(config.indexConfig.metricsInfo.initArgs);
return factory;
} else {
return dirFactory;
}
}
}

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@ -1,537 +0,0 @@
/*
* 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.solr.core;
import java.io.IOException;
import java.util.Collection;
import com.codahale.metrics.Histogram;
import com.codahale.metrics.Meter;
import org.apache.lucene.store.Directory;
import org.apache.lucene.store.FilterDirectory;
import org.apache.lucene.store.IOContext;
import org.apache.lucene.store.IndexInput;
import org.apache.lucene.store.IndexOutput;
import org.apache.lucene.store.LockFactory;
import org.apache.solr.common.util.NamedList;
import org.apache.solr.metrics.SolrMetricManager;
import org.apache.solr.util.plugin.SolrCoreAware;
/**
* An implementation of {@link DirectoryFactory} that decorates provided factory by
* adding metrics for directory IO operations.
*/
public class MetricsDirectoryFactory extends DirectoryFactory implements SolrCoreAware {
private final SolrMetricManager metricManager;
private final String registry;
private final DirectoryFactory in;
private boolean directoryDetails = false;
private boolean directoryTotals = false;
public MetricsDirectoryFactory(SolrMetricManager metricManager, String registry, DirectoryFactory in) {
this.metricManager = metricManager;
this.registry = registry;
this.in = in;
}
public DirectoryFactory getDelegate() {
return in;
}
/**
* Currently the following arguments are supported:
* <ul>
* <li><code>directory</code> - (optional bool, default false) when true then coarse-grained metrics will be collected.</li>
* <li><code>directoryDetails</code> - (optional bool, default false) when true then additional detailed metrics
* will be collected. These include eg. IO size histograms and per-file counters and histograms</li>
* </ul>
* NOTE: please be aware that collecting even coarse-grained metrics can have significant performance impact
* (see SOLR-10130).
* @param args init args
*/
@Override
public void init(NamedList args) {
// should be already inited
// in.init(args);
if (args == null) {
return;
}
Boolean td = args.getBooleanArg("directory");
if (td != null) {
directoryTotals = td;
} else {
directoryTotals = false;
}
Boolean dd = args.getBooleanArg("directoryDetails");
if (dd != null) {
directoryDetails = dd;
} else {
directoryDetails = false;
}
if (directoryDetails) {
directoryTotals = true;
}
}
/**
* Unwrap just one level if the argument is a {@link MetricsDirectory}
* @param dir directory
* @return delegate if the instance was a {@link MetricsDirectory}, otherwise unchanged.
*/
private static Directory unwrap(Directory dir) {
if (dir instanceof MetricsDirectory) {
return ((MetricsDirectory)dir).getDelegate();
} else {
return dir;
}
}
@Override
public void doneWithDirectory(Directory dir) throws IOException {
dir = unwrap(dir);
in.doneWithDirectory(dir);
}
@Override
public void addCloseListener(Directory dir, CachingDirectoryFactory.CloseListener closeListener) {
dir = unwrap(dir);
in.addCloseListener(dir, closeListener);
}
@Override
public void close() throws IOException {
in.close();
}
@Override
protected Directory create(String path, LockFactory lockFactory, DirContext dirContext) throws IOException {
Directory dir = in.create(path, lockFactory, dirContext);
return new MetricsDirectory(metricManager, registry, dir, directoryTotals, directoryDetails);
}
@Override
protected LockFactory createLockFactory(String rawLockType) throws IOException {
return in.createLockFactory(rawLockType);
}
@Override
public boolean exists(String path) throws IOException {
return in.exists(path);
}
@Override
public void remove(Directory dir) throws IOException {
dir = unwrap(dir);
in.remove(dir);
}
@Override
public void remove(Directory dir, boolean afterCoreClose) throws IOException {
dir = unwrap(dir);
in.remove(dir, afterCoreClose);
}
@Override
public boolean isSharedStorage() {
return in.isSharedStorage();
}
@Override
public boolean isAbsolute(String path) {
return in.isAbsolute(path);
}
@Override
public boolean searchersReserveCommitPoints() {
return in.searchersReserveCommitPoints();
}
@Override
public String getDataHome(CoreDescriptor cd) throws IOException {
return in.getDataHome(cd);
}
@Override
public long size(Directory dir) throws IOException {
dir = unwrap(dir);
return in.size(dir);
}
@Override
public long size(String path) throws IOException {
return in.size(path);
}
@Override
public Collection<SolrInfoMBean> offerMBeans() {
return in.offerMBeans();
}
@Override
public void cleanupOldIndexDirectories(String dataDirPath, String currentIndexDirPath, boolean reload) {
in.cleanupOldIndexDirectories(dataDirPath, currentIndexDirPath, reload);
}
@Override
public void remove(String path, boolean afterCoreClose) throws IOException {
in.remove(path, afterCoreClose);
}
@Override
public void remove(String path) throws IOException {
in.remove(path);
}
@Override
public void move(Directory fromDir, Directory toDir, String fileName, IOContext ioContext) throws IOException {
fromDir = unwrap(fromDir);
toDir = unwrap(toDir);
in.move(fromDir, toDir, fileName, ioContext);
}
@Override
public Directory get(String path, DirContext dirContext, String rawLockType) throws IOException {
Directory dir = in.get(path, dirContext, rawLockType);
if (dir instanceof MetricsDirectory) {
return dir;
} else {
return new MetricsDirectory(metricManager, registry, dir, directoryTotals, directoryDetails);
}
}
@Override
public void renameWithOverwrite(Directory dir, String fileName, String toName) throws IOException {
dir = unwrap(dir);
in.renameWithOverwrite(dir, fileName, toName);
}
@Override
public String normalize(String path) throws IOException {
return in.normalize(path);
}
@Override
protected boolean deleteOldIndexDirectory(String oldDirPath) throws IOException {
return in.deleteOldIndexDirectory(oldDirPath);
}
@Override
public void initCoreContainer(CoreContainer cc) {
in.initCoreContainer(cc);
}
@Override
public void incRef(Directory dir) {
dir = unwrap(dir);
in.incRef(dir);
}
@Override
public boolean isPersistent() {
return in.isPersistent();
}
@Override
public void inform(SolrCore core) {
if (in instanceof SolrCoreAware) {
((SolrCoreAware)in).inform(core);
}
}
@Override
public void release(Directory dir) throws IOException {
dir = unwrap(dir);
in.release(dir);
}
private static final String SEGMENTS = "segments";
private static final String SEGMENTS_PREFIX = "segments_";
private static final String PENDING_SEGMENTS_PREFIX = "pending_segments_";
private static final String TEMP = "temp";
private static final String OTHER = "other";
public static class MetricsDirectory extends FilterDirectory {
private final Directory in;
private final String registry;
private final SolrMetricManager metricManager;
private final Meter totalReads;
private final Histogram totalReadSizes;
private final Meter totalWrites;
private final Histogram totalWriteSizes;
private final boolean directoryDetails;
private final boolean directoryTotals;
private final String PREFIX = SolrInfoMBean.Category.DIRECTORY.toString() + ".";
public MetricsDirectory(SolrMetricManager metricManager, String registry, Directory in, boolean directoryTotals,
boolean directoryDetails) throws IOException {
super(in);
this.metricManager = metricManager;
this.registry = registry;
this.in = in;
this.directoryDetails = directoryDetails;
this.directoryTotals = directoryTotals;
if (directoryTotals) {
this.totalReads = metricManager.meter(registry, "reads", SolrInfoMBean.Category.DIRECTORY.toString(), "total");
this.totalWrites = metricManager.meter(registry, "writes", SolrInfoMBean.Category.DIRECTORY.toString(), "total");
if (directoryDetails) {
this.totalReadSizes = metricManager.histogram(registry, "readSizes", SolrInfoMBean.Category.DIRECTORY.toString(), "total");
this.totalWriteSizes = metricManager.histogram(registry, "writeSizes", SolrInfoMBean.Category.DIRECTORY.toString(), "total");
} else {
this.totalReadSizes = null;
this.totalWriteSizes = null;
}
} else {
this.totalReads = null;
this.totalWrites = null;
this.totalReadSizes = null;
this.totalWriteSizes = null;
}
}
private String getMetricName(String name, boolean output) {
if (!directoryDetails) {
return null;
}
String lastName;
if (name.startsWith(SEGMENTS_PREFIX) || name.startsWith(PENDING_SEGMENTS_PREFIX)) {
lastName = SEGMENTS;
} else {
int pos = name.lastIndexOf('.');
if (pos != -1 && name.length() > pos + 1) {
lastName = name.substring(pos + 1);
} else {
lastName = OTHER;
}
}
StringBuilder sb = new StringBuilder(PREFIX);
sb.append(lastName);
sb.append('.');
if (output) {
sb.append("write");
} else {
sb.append("read");
}
return sb.toString();
}
@Override
public IndexOutput createOutput(String name, IOContext context) throws IOException {
IndexOutput output = in.createOutput(name, context);
if (!directoryTotals) {
return output;
}
if (output != null) {
return new MetricsOutput(totalWrites, totalWriteSizes, metricManager, registry, getMetricName(name, true), output);
} else {
return null;
}
}
@Override
public IndexOutput createTempOutput(String prefix, String suffix, IOContext context) throws IOException {
IndexOutput output = in.createTempOutput(prefix, suffix, context);
if (!directoryTotals) {
return output;
}
if (output != null) {
return new MetricsOutput(totalWrites, totalWriteSizes, metricManager, registry, getMetricName(TEMP, true), output);
} else {
return null;
}
}
@Override
public IndexInput openInput(String name, IOContext context) throws IOException {
IndexInput input = in.openInput(name, context);
if (!directoryTotals) {
return input;
}
if (input != null) {
return new MetricsInput(totalReads, totalReadSizes, metricManager, registry, getMetricName(name, false), input);
} else {
return null;
}
}
}
public static class MetricsOutput extends IndexOutput {
private final IndexOutput in;
private final Histogram histogram;
private final Meter meter;
private final Meter totalMeter;
private final Histogram totalHistogram;
private final boolean withDetails;
public MetricsOutput(Meter totalMeter, Histogram totalHistogram, SolrMetricManager metricManager,
String registry, String metricName, IndexOutput in) {
super(in.toString(), in.getName());
this.in = in;
this.totalMeter = totalMeter;
this.totalHistogram = totalHistogram;
if (metricName != null && totalHistogram != null) {
withDetails = true;
String histName = metricName + "Sizes";
String meterName = metricName + "s";
this.histogram = metricManager.histogram(registry, histName);
this.meter = metricManager.meter(registry, meterName);
} else {
withDetails = false;
this.histogram = null;
this.meter = null;
}
}
@Override
public void writeByte(byte b) throws IOException {
in.writeByte(b);
totalMeter.mark();
if (withDetails) {
totalHistogram.update(1);
meter.mark();
histogram.update(1);
}
}
@Override
public void writeBytes(byte[] b, int offset, int length) throws IOException {
in.writeBytes(b, offset, length);
totalMeter.mark(length);
if (withDetails) {
totalHistogram.update(length);
meter.mark(length);
histogram.update(length);
}
}
@Override
public void close() throws IOException {
in.close();
}
@Override
public long getFilePointer() {
return in.getFilePointer();
}
@Override
public long getChecksum() throws IOException {
return in.getChecksum();
}
}
public static class MetricsInput extends IndexInput {
private final IndexInput in;
private final Meter totalMeter;
private final Histogram totalHistogram;
private final Histogram histogram;
private final Meter meter;
private final boolean withDetails;
public MetricsInput(Meter totalMeter, Histogram totalHistogram, SolrMetricManager metricManager, String registry, String metricName, IndexInput in) {
super(in.toString());
this.in = in;
this.totalMeter = totalMeter;
this.totalHistogram = totalHistogram;
if (metricName != null && totalHistogram != null) {
withDetails = true;
String histName = metricName + "Sizes";
String meterName = metricName + "s";
this.histogram = metricManager.histogram(registry, histName);
this.meter = metricManager.meter(registry, meterName);
} else {
withDetails = false;
this.histogram = null;
this.meter = null;
}
}
public MetricsInput(Meter totalMeter, Histogram totalHistogram, Histogram histogram, Meter meter, IndexInput in) {
super(in.toString());
this.in = in;
this.totalMeter = totalMeter;
this.totalHistogram = totalHistogram;
this.histogram = histogram;
this.meter = meter;
if (totalHistogram != null && meter != null && histogram != null) {
withDetails = true;
} else {
withDetails = false;
}
}
@Override
public void close() throws IOException {
in.close();
}
@Override
public long getFilePointer() {
return in.getFilePointer();
}
@Override
public void seek(long pos) throws IOException {
in.seek(pos);
}
@Override
public long length() {
return in.length();
}
@Override
public IndexInput clone() {
return new MetricsInput(totalMeter, totalHistogram, histogram, meter, in.clone());
}
@Override
public IndexInput slice(String sliceDescription, long offset, long length) throws IOException {
IndexInput slice = in.slice(sliceDescription, offset, length);
if (slice != null) {
return new MetricsInput(totalMeter, totalHistogram, histogram, meter, slice);
} else {
return null;
}
}
@Override
public byte readByte() throws IOException {
totalMeter.mark();
if (withDetails) {
totalHistogram.update(1);
meter.mark();
histogram.update(1);
}
return in.readByte();
}
@Override
public void readBytes(byte[] b, int offset, int len) throws IOException {
totalMeter.mark(len);
if (withDetails) {
totalHistogram.update(len);
meter.mark(len);
histogram.update(len);
}
in.readBytes(b, offset, len);
}
}
}

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@ -114,9 +114,6 @@ public class SolrDeletionPolicy extends IndexDeletionPolicy implements NamedList
protected void appendDetails(StringBuilder sb, IndexCommit c) {
Directory dir = c.getDirectory();
if (dir instanceof MetricsDirectoryFactory.MetricsDirectory) { // unwrap
dir = ((MetricsDirectoryFactory.MetricsDirectory) dir).getDelegate();
}
if (dir instanceof FSDirectory) {
FSDirectory fsd = (FSDirectory) dir;
sb.append("dir=").append(fsd.getDirectory());
@ -197,9 +194,6 @@ public class SolrDeletionPolicy extends IndexDeletionPolicy implements NamedList
private String getId(IndexCommit commit) {
StringBuilder sb = new StringBuilder();
Directory dir = commit.getDirectory();
if (dir instanceof MetricsDirectoryFactory.MetricsDirectory) { // unwrap
dir = ((MetricsDirectoryFactory.MetricsDirectory) dir).getDelegate();
}
// For anything persistent, make something that will
// be the same, regardless of the Directory instance.

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@ -29,8 +29,6 @@
<indexConfig>
<metrics>
<bool name="directory">${solr.tests.metrics.directory:false}</bool>
<bool name="directoryDetails">${solr.tests.metrics.directoryDetails:false}</bool>
<bool name="merge">${solr.tests.metrics.merge:false}</bool>
<bool name="mergeDetails">${solr.tests.metrics.mergeDetails:false}</bool>
</metrics>

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@ -41,7 +41,6 @@ import org.apache.solr.cloud.StoppableIndexingThread;
import org.apache.solr.core.CoreContainer;
import org.apache.solr.core.DirectoryFactory;
import org.apache.solr.core.HdfsDirectoryFactory;
import org.apache.solr.core.MetricsDirectoryFactory;
import org.apache.solr.core.SolrCore;
import org.apache.solr.store.blockcache.BlockCache;
import org.apache.solr.store.blockcache.BlockDirectory;
@ -137,9 +136,6 @@ public class HdfsWriteToMultipleCollectionsTest extends BasicDistributedZkTest {
if (core.getCoreDescriptor().getCloudDescriptor().getCollectionName()
.startsWith(ACOLLECTION)) {
DirectoryFactory factory = core.getDirectoryFactory();
if (factory instanceof MetricsDirectoryFactory) {
factory = ((MetricsDirectoryFactory) factory).getDelegate();
}
assertTrue("Found: " + core.getDirectoryFactory().getClass().getName(), factory instanceof HdfsDirectoryFactory);
Directory dir = factory.get(core.getDataDir(), null, null);
try {
@ -159,8 +155,7 @@ public class HdfsWriteToMultipleCollectionsTest extends BasicDistributedZkTest {
.getSolrCoreState().getIndexWriter(core);
try {
IndexWriter iw = iwRef.get();
NRTCachingDirectory directory = (NRTCachingDirectory) ((MetricsDirectoryFactory.MetricsDirectory)iw
.getDirectory()).getDelegate();
NRTCachingDirectory directory = (NRTCachingDirectory) iw.getDirectory();
BlockDirectory blockDirectory = (BlockDirectory) directory
.getDelegate();
assertTrue(blockDirectory.isBlockCacheReadEnabled());

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@ -66,8 +66,6 @@ import org.apache.solr.common.params.SolrParams;
import org.apache.solr.common.util.NamedList;
import org.apache.solr.core.CachingDirectoryFactory;
import org.apache.solr.core.CoreContainer;
import org.apache.solr.core.DirectoryFactory;
import org.apache.solr.core.MetricsDirectoryFactory;
import org.apache.solr.core.SolrCore;
import org.apache.solr.core.StandardDirectoryFactory;
import org.apache.solr.core.snapshots.SolrSnapshotMetaDataManager;
@ -923,12 +921,7 @@ public class TestReplicationHandler extends SolrTestCaseJ4 {
}
private CachingDirectoryFactory getCachingDirectoryFactory(SolrCore core) {
DirectoryFactory df = core.getDirectoryFactory();
if (df instanceof MetricsDirectoryFactory) {
return (CachingDirectoryFactory)((MetricsDirectoryFactory)df).getDelegate();
} else {
return (CachingDirectoryFactory)df;
}
return (CachingDirectoryFactory) core.getDirectoryFactory();
}
private void checkForSingleIndex(JettySolrRunner jetty) {

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@ -25,7 +25,6 @@ import org.apache.solr.SolrTestCaseJ4;
import org.apache.solr.common.params.CoreAdminParams;
import org.apache.solr.core.CoreContainer;
import org.apache.solr.core.DirectoryFactory;
import org.apache.solr.core.MetricsDirectoryFactory;
import org.apache.solr.core.MockFSDirectoryFactory;
import org.apache.solr.core.SolrCore;
import org.apache.solr.response.SolrQueryResponse;
@ -78,12 +77,7 @@ public class CoreMergeIndexesAdminHandlerTest extends SolrTestCaseJ4 {
try (SolrCore core = cores.getCore("collection1")) {
DirectoryFactory df = core.getDirectoryFactory();
FailingDirectoryFactory dirFactory;
if (df instanceof MetricsDirectoryFactory) {
dirFactory = (FailingDirectoryFactory)((MetricsDirectoryFactory)df).getDelegate();
} else {
dirFactory = (FailingDirectoryFactory)df;
}
FailingDirectoryFactory dirFactory = (FailingDirectoryFactory) df;
try {
dirFactory.fail = true;

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@ -18,7 +18,6 @@ package org.apache.solr.update;
import java.util.Map;
import com.codahale.metrics.Histogram;
import com.codahale.metrics.Meter;
import com.codahale.metrics.Metric;
import com.codahale.metrics.MetricRegistry;
@ -59,8 +58,6 @@ public class SolrIndexMetricsTest extends SolrTestCaseJ4 {
public void testIndexMetricsNoDetails() throws Exception {
System.setProperty("solr.tests.metrics.merge", "true");
System.setProperty("solr.tests.metrics.mergeDetails", "false");
System.setProperty("solr.tests.metrics.directory", "true");
System.setProperty("solr.tests.metrics.directoryDetails", "false");
initCore("solrconfig-indexmetrics.xml", "schema.xml");
addDocs();
@ -71,7 +68,6 @@ public class SolrIndexMetricsTest extends SolrTestCaseJ4 {
Map<String, Metric> metrics = registry.getMetrics();
assertEquals(10, metrics.entrySet().stream().filter(e -> e.getKey().startsWith("INDEX")).count());
assertEquals(2, metrics.entrySet().stream().filter(e -> e.getKey().startsWith("DIRECTORY")).count());
// check basic index meters
Timer timer = (Timer)metrics.get("INDEX.merge.minor");
@ -82,30 +78,12 @@ public class SolrIndexMetricsTest extends SolrTestCaseJ4 {
assertNull((Meter)metrics.get("INDEX.merge.major.docs"));
Meter meter = (Meter)metrics.get("INDEX.flush");
assertTrue("flush: " + meter.getCount(), meter.getCount() > 10);
// check basic directory meters
meter = (Meter)metrics.get("DIRECTORY.total.reads");
assertTrue("totalReads", meter.getCount() > 0);
meter = (Meter)metrics.get("DIRECTORY.total.writes");
assertTrue("totalWrites", meter.getCount() > 0);
// check detailed meters
Histogram histogram = (Histogram)metrics.get("DIRECTORY.total.readSizes");
assertNull("readSizes", histogram);
histogram = (Histogram)metrics.get("DIRECTORY.total.writeSizes");
assertNull("writeSizes", histogram);
meter = (Meter)metrics.get("DIRECTORY.segments.writes");
assertNull("segmentsWrites", meter);
histogram = (Histogram)metrics.get("DIRECTORY.segments.writeSizes");
assertNull("segmentsWriteSizes", histogram);
}
@Test
public void testIndexNoMetrics() throws Exception {
System.setProperty("solr.tests.metrics.merge", "false");
System.setProperty("solr.tests.metrics.mergeDetails", "false");
System.setProperty("solr.tests.metrics.directory", "false");
System.setProperty("solr.tests.metrics.directoryDetails", "false");
initCore("solrconfig-indexmetrics.xml", "schema.xml");
addDocs();
@ -115,16 +93,12 @@ public class SolrIndexMetricsTest extends SolrTestCaseJ4 {
Map<String, Metric> metrics = registry.getMetrics();
assertEquals(0, metrics.entrySet().stream().filter(e -> e.getKey().startsWith("INDEX")).count());
// this is variable, depending on the codec and the number of created files
assertEquals(0, metrics.entrySet().stream().filter(e -> e.getKey().startsWith("DIRECTORY")).count());
}
@Test
public void testIndexMetricsWithDetails() throws Exception {
System.setProperty("solr.tests.metrics.merge", "false"); // test mergeDetails override too
System.setProperty("solr.tests.metrics.mergeDetails", "true");
System.setProperty("solr.tests.metrics.directory", "false");
System.setProperty("solr.tests.metrics.directoryDetails", "true");
initCore("solrconfig-indexmetrics.xml", "schema.xml");
addDocs();
@ -135,8 +109,6 @@ public class SolrIndexMetricsTest extends SolrTestCaseJ4 {
Map<String, Metric> metrics = registry.getMetrics();
assertTrue(metrics.entrySet().stream().filter(e -> e.getKey().startsWith("INDEX")).count() >= 12);
// this is variable, depending on the codec and the number of created files
assertTrue(metrics.entrySet().stream().filter(e -> e.getKey().startsWith("DIRECTORY")).count() > 20);
// check basic index meters
Timer timer = (Timer)metrics.get("INDEX.merge.minor");
@ -149,21 +121,5 @@ public class SolrIndexMetricsTest extends SolrTestCaseJ4 {
meter = (Meter)metrics.get("INDEX.flush");
assertTrue("flush: " + meter.getCount(), meter.getCount() > 10);
// check basic directory meters
meter = (Meter)metrics.get("DIRECTORY.total.reads");
assertTrue("totalReads", meter.getCount() > 0);
meter = (Meter)metrics.get("DIRECTORY.total.writes");
assertTrue("totalWrites", meter.getCount() > 0);
// check detailed meters
Histogram histogram = (Histogram)metrics.get("DIRECTORY.total.readSizes");
assertTrue("readSizes", histogram.getCount() > 0);
histogram = (Histogram)metrics.get("DIRECTORY.total.writeSizes");
assertTrue("writeSizes", histogram.getCount() > 0);
meter = (Meter)metrics.get("DIRECTORY.segments.writes");
assertTrue("segmentsWrites", meter.getCount() > 0);
histogram = (Histogram)metrics.get("DIRECTORY.segments.writeSizes");
assertTrue("segmentsWriteSizes", histogram.getCount() > 0);
}
}