mirror of https://github.com/apache/lucene.git
SOLR-10130 Serious performance degradation in Solr 6.4.1 due to the
new metrics collection.
This commit is contained in:
Andrzej Bialecki
parent
787a388ec8
commit
b6f49dc1fb
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@ -205,6 +205,28 @@ Other Changes
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* SOLR-9890: factor out ShardResultTransformerUtils.[un]marshSortValue methods
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(Judith Silverman, Christine Poerschke)
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================== 6.4.2 ==================
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Consult the LUCENE_CHANGES.txt file for additional, low level, changes in this release.
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Versions of Major Components
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---------------------
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Apache Tika 1.13
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Carrot2 3.15.0
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Velocity 1.7 and Velocity Tools 2.0
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Apache UIMA 2.3.1
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Apache ZooKeeper 3.4.6
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Jetty 9.3.14.v20161028
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Detailed Change List
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----------------------
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Bug Fixes
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----------------------
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* SOLR-10130: Serious performance degradation in Solr 6.4.1 due to the new metrics collection.
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Default settings in solrconfig.xml /config/indexConfig/metrics have been changed to turn off
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IndexWriter and Directory level metrics collection. (ab, ishan)
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================== 6.4.1 ==================
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Consult the LUCENE_CHANGES.txt file for additional, low level, changes in this release.
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@ -40,6 +40,7 @@ public class MetricsDirectoryFactory extends DirectoryFactory implements SolrCor
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private final String registry;
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private final DirectoryFactory in;
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private boolean directoryDetails = false;
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private boolean directoryTotals = false;
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public MetricsDirectoryFactory(SolrMetricManager metricManager, String registry, DirectoryFactory in) {
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this.metricManager = metricManager;
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@ -54,9 +55,12 @@ public class MetricsDirectoryFactory extends DirectoryFactory implements SolrCor
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/**
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* Currently the following arguments are supported:
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* <ul>
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* <li><code>directoryDetails</code> - (optional bool) when true then additional detailed metrics
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* <li><code>directory</code> - (optional bool, default false) when true then coarse-grained metrics will be collected.</li>
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* <li><code>directoryDetails</code> - (optional bool, default false) when true then additional detailed metrics
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* will be collected. These include eg. IO size histograms and per-file counters and histograms</li>
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* </ul>
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* NOTE: please be aware that collecting even coarse-grained metrics can have significant performance impact
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* (see SOLR-10130).
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* @param args init args
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*/
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@Override
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@ -66,12 +70,21 @@ public class MetricsDirectoryFactory extends DirectoryFactory implements SolrCor
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if (args == null) {
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return;
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}
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Boolean td = args.getBooleanArg("directory");
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if (td != null) {
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directoryTotals = td;
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} else {
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directoryTotals = false;
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}
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Boolean dd = args.getBooleanArg("directoryDetails");
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if (dd != null) {
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directoryDetails = dd;
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} else {
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directoryDetails = false;
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}
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if (directoryDetails) {
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directoryTotals = true;
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}
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}
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/**
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@ -107,7 +120,7 @@ public class MetricsDirectoryFactory extends DirectoryFactory implements SolrCor
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@Override
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protected Directory create(String path, LockFactory lockFactory, DirContext dirContext) throws IOException {
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Directory dir = in.create(path, lockFactory, dirContext);
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return new MetricsDirectory(metricManager, registry, dir, directoryDetails);
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return new MetricsDirectory(metricManager, registry, dir, directoryTotals, directoryDetails);
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}
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@Override
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@ -196,7 +209,7 @@ public class MetricsDirectoryFactory extends DirectoryFactory implements SolrCor
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if (dir instanceof MetricsDirectory) {
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return dir;
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} else {
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return new MetricsDirectory(metricManager, registry, dir, directoryDetails);
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return new MetricsDirectory(metricManager, registry, dir, directoryTotals, directoryDetails);
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}
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}
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@ -263,15 +276,19 @@ public class MetricsDirectoryFactory extends DirectoryFactory implements SolrCor
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private final Meter totalWrites;
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private final Histogram totalWriteSizes;
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private final boolean directoryDetails;
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private final boolean directoryTotals;
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private final String PREFIX = SolrInfoMBean.Category.DIRECTORY.toString() + ".";
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public MetricsDirectory(SolrMetricManager metricManager, String registry, Directory in, boolean directoryDetails) throws IOException {
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public MetricsDirectory(SolrMetricManager metricManager, String registry, Directory in, boolean directoryTotals,
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boolean directoryDetails) throws IOException {
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super(in);
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this.metricManager = metricManager;
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this.registry = registry;
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this.in = in;
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this.directoryDetails = directoryDetails;
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this.directoryTotals = directoryTotals;
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if (directoryTotals) {
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this.totalReads = metricManager.meter(registry, "reads", SolrInfoMBean.Category.DIRECTORY.toString(), "total");
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this.totalWrites = metricManager.meter(registry, "writes", SolrInfoMBean.Category.DIRECTORY.toString(), "total");
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if (directoryDetails) {
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@ -281,6 +298,12 @@ public class MetricsDirectoryFactory extends DirectoryFactory implements SolrCor
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this.totalReadSizes = null;
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this.totalWriteSizes = null;
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}
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} else {
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this.totalReads = null;
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this.totalWrites = null;
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this.totalReadSizes = null;
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this.totalWriteSizes = null;
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}
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}
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private String getMetricName(String name, boolean output) {
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@ -312,6 +335,9 @@ public class MetricsDirectoryFactory extends DirectoryFactory implements SolrCor
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@Override
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public IndexOutput createOutput(String name, IOContext context) throws IOException {
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IndexOutput output = in.createOutput(name, context);
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if (!directoryTotals) {
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return output;
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}
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if (output != null) {
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return new MetricsOutput(totalWrites, totalWriteSizes, metricManager, registry, getMetricName(name, true), output);
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} else {
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@ -322,6 +348,9 @@ public class MetricsDirectoryFactory extends DirectoryFactory implements SolrCor
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@Override
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public IndexOutput createTempOutput(String prefix, String suffix, IOContext context) throws IOException {
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IndexOutput output = in.createTempOutput(prefix, suffix, context);
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if (!directoryTotals) {
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return output;
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}
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if (output != null) {
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return new MetricsOutput(totalWrites, totalWriteSizes, metricManager, registry, getMetricName(TEMP, true), output);
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} else {
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@ -332,6 +361,9 @@ public class MetricsDirectoryFactory extends DirectoryFactory implements SolrCor
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@Override
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public IndexInput openInput(String name, IOContext context) throws IOException {
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IndexInput input = in.openInput(name, context);
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if (!directoryTotals) {
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return input;
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}
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if (input != null) {
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return new MetricsInput(totalReads, totalReadSizes, metricManager, registry, getMetricName(name, false), input);
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} else {
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@ -71,25 +71,26 @@ public class SolrIndexWriter extends IndexWriter {
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// metrics
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private long majorMergeDocs = 512 * 1024;
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private final Timer majorMerge;
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private final Timer minorMerge;
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private final Meter majorMergedDocs;
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private final Meter majorDeletedDocs;
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private final Counter mergeErrors;
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private final Meter flushMeter; // original counter is package-private in IndexWriter
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private final boolean mergeDetails;
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private Timer majorMerge;
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private Timer minorMerge;
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private Meter majorMergedDocs;
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private Meter majorDeletedDocs;
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private Counter mergeErrors;
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private Meter flushMeter; // original counter is package-private in IndexWriter
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private boolean mergeTotals = false;
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private boolean mergeDetails = false;
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private final AtomicInteger runningMajorMerges = new AtomicInteger();
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private final Gauge<Integer> runningMajorMergesGauge;
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private Gauge<Integer> runningMajorMergesGauge;
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private final AtomicInteger runningMinorMerges = new AtomicInteger();
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private final Gauge<Integer> runningMinorMergesGauge;
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private Gauge<Integer> runningMinorMergesGauge;
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private final AtomicInteger runningMajorMergesSegments = new AtomicInteger();
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private final Gauge<Integer> runningMajorMergesSegmentsGauge;
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private Gauge<Integer> runningMajorMergesSegmentsGauge;
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private final AtomicInteger runningMinorMergesSegments = new AtomicInteger();
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private final Gauge<Integer> runningMinorMergesSegmentsGauge;
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private Gauge<Integer> runningMinorMergesSegmentsGauge;
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private final AtomicLong runningMajorMergesDocs = new AtomicLong();
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private final Gauge<Long> runningMajorMergesDocsGauge;
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private Gauge<Long> runningMajorMergesDocsGauge;
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private final AtomicLong runningMinorMergesDocs = new AtomicLong();
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private final Gauge<Long> runningMinorMergesDocsGauge;
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private Gauge<Long> runningMinorMergesDocsGauge;
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public static SolrIndexWriter create(SolrCore core, String name, String path, DirectoryFactory directoryFactory, boolean create, IndexSchema schema, SolrIndexConfig config, IndexDeletionPolicy delPolicy, Codec codec) throws IOException {
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@ -116,18 +117,7 @@ public class SolrIndexWriter extends IndexWriter {
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numOpens.incrementAndGet();
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log.debug("Opened Writer " + name);
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// no metrics
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minorMerge = null;
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majorMerge = null;
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mergeErrors = null;
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majorMergedDocs = null;
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majorDeletedDocs = null;
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runningMinorMergesGauge = null;
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runningMinorMergesDocsGauge = null;
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runningMinorMergesSegmentsGauge = null;
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runningMajorMergesGauge = null;
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runningMajorMergesDocsGauge = null;
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runningMajorMergesSegmentsGauge = null;
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flushMeter = null;
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mergeTotals = false;
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mergeDetails = false;
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}
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@ -144,6 +134,33 @@ public class SolrIndexWriter extends IndexWriter {
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numOpens.incrementAndGet();
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SolrMetricManager metricManager = core.getCoreDescriptor().getCoreContainer().getMetricManager();
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String registry = core.getCoreMetricManager().getRegistryName();
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if (config.metricsInfo != null && config.metricsInfo.initArgs != null) {
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Object v = config.metricsInfo.initArgs.get("majorMergeDocs");
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if (v != null) {
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try {
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majorMergeDocs = Long.parseLong(String.valueOf(v));
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} catch (Exception e) {
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log.warn("Invalid 'majorMergeDocs' argument, using default 512k", e);
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}
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}
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Boolean Totals = config.metricsInfo.initArgs.getBooleanArg("merge");
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Boolean Details = config.metricsInfo.initArgs.getBooleanArg("mergeDetails");
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if (Details != null) {
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mergeDetails = Details;
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} else {
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mergeDetails = false;
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}
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if (Totals != null) {
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mergeTotals = Totals;
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} else {
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mergeTotals = false;
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}
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if (mergeDetails) {
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mergeTotals = true; // override
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majorMergedDocs = metricManager.meter(registry, "docs", SolrInfoMBean.Category.INDEX.toString(), "merge", "major");
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majorDeletedDocs = metricManager.meter(registry, "deletedDocs", SolrInfoMBean.Category.INDEX.toString(), "merge", "major");
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}
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if (mergeTotals) {
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minorMerge = metricManager.timer(registry, "minor", SolrInfoMBean.Category.INDEX.toString(), "merge");
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majorMerge = metricManager.timer(registry, "major", SolrInfoMBean.Category.INDEX.toString(), "merge");
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mergeErrors = metricManager.counter(registry, "errors", SolrInfoMBean.Category.INDEX.toString(), "merge");
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@ -160,33 +177,8 @@ public class SolrIndexWriter extends IndexWriter {
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metricManager.register(registry, runningMajorMergesSegmentsGauge, true, "running.segments", SolrInfoMBean.Category.INDEX.toString(), "merge", "major");
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metricManager.register(registry, runningMinorMergesSegmentsGauge, true, "running.segments", SolrInfoMBean.Category.INDEX.toString(), "merge", "minor");
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flushMeter = metricManager.meter(registry, "flush", SolrInfoMBean.Category.INDEX.toString());
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if (config.metricsInfo != null && config.metricsInfo.initArgs != null) {
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Object v = config.metricsInfo.initArgs.get("majorMergeDocs");
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if (v != null) {
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try {
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majorMergeDocs = Long.parseLong(String.valueOf(v));
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} catch (Exception e) {
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log.warn("Invalid 'majorMergeDocs' argument, using default 512k", e);
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}
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}
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Boolean Details = config.metricsInfo.initArgs.getBooleanArg("mergeDetails");
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if (Details != null) {
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mergeDetails = Details;
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} else {
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mergeDetails = false;
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}
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if (mergeDetails) {
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majorMergedDocs = metricManager.meter(registry, "docs", SolrInfoMBean.Category.INDEX.toString(), "merge", "major");
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majorDeletedDocs = metricManager.meter(registry, "deletedDocs", SolrInfoMBean.Category.INDEX.toString(), "merge", "major");
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} else {
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majorMergedDocs = null;
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majorDeletedDocs = null;
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}
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} else {
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mergeDetails = false;
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majorMergedDocs = null;
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majorDeletedDocs = null;
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}
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}
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@SuppressForbidden(reason = "Need currentTimeMillis, commit time should be used only for debugging purposes, " +
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@ -205,6 +197,10 @@ public class SolrIndexWriter extends IndexWriter {
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// we override this method to collect metrics for merges.
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@Override
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public void merge(MergePolicy.OneMerge merge) throws IOException {
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if (!mergeTotals) {
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super.merge(merge);
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return;
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}
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long deletedDocs = 0;
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long totalNumDocs = merge.totalNumDocs();
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for (SegmentCommitInfo info : merge.segments) {
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@ -251,7 +247,7 @@ public class SolrIndexWriter extends IndexWriter {
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@Override
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protected void doAfterFlush() throws IOException {
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if (flushMeter != null) { // this is null when writer is used only for snapshot cleanup
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flushMeter.mark();
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flushMeter.mark(); // or if mergeTotals == false
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}
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super.doAfterFlush();
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}
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@ -29,8 +29,10 @@
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<indexConfig>
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<metrics>
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<bool name="directoryDetails">${solr.tests.directoryDetails:false}</bool>
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<bool name="mergeDetails">${solr.tests.mergeDetails:false}</bool>
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<bool name="directory">${solr.tests.metrics.directory:false}</bool>
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<bool name="directoryDetails">${solr.tests.metrics.directoryDetails:false}</bool>
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<bool name="merge">${solr.tests.metrics.merge:false}</bool>
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<bool name="mergeDetails">${solr.tests.metrics.mergeDetails:false}</bool>
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</metrics>
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<!-- intentionally set very low values here to trigger multiple flushes and merges.
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DO NOT USE THESE ABSURD VALUES IN PRODUCTION. -->
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@ -26,7 +26,7 @@ import com.codahale.metrics.Timer;
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import org.apache.solr.SolrTestCaseJ4;
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import org.apache.solr.common.SolrInputDocument;
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import org.apache.solr.request.SolrQueryRequest;
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import org.junit.BeforeClass;
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import org.junit.After;
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import org.junit.Test;
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/**
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@ -34,15 +34,12 @@ import org.junit.Test;
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*/
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public class SolrIndexMetricsTest extends SolrTestCaseJ4 {
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@BeforeClass
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public static void beforeClass() throws Exception {
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System.setProperty("solr.tests.mergeDetails", "true");
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System.setProperty("solr.tests.directoryDetails", "true");
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initCore("solrconfig-indexmetrics.xml", "schema.xml");
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@After
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public void afterMethod() throws Exception {
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deleteCore();
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}
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@Test
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public void testIndexMetrics() throws Exception {
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private void addDocs() throws Exception {
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SolrQueryRequest req = lrf.makeRequest();
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UpdateHandler uh = req.getCore().getUpdateHandler();
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AddUpdateCommand add = new AddUpdateCommand(req);
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@ -54,10 +51,86 @@ public class SolrIndexMetricsTest extends SolrTestCaseJ4 {
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uh.addDoc(add);
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}
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uh.commit(new CommitUpdateCommand(req, false));
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MetricRegistry registry = h.getCoreContainer().getMetricManager().registry(h.getCore().getCoreMetricManager().getRegistryName());
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assertNotNull(registry);
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// make sure all merges are finished
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h.reload();
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}
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@Test
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public void testIndexMetricsNoDetails() throws Exception {
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System.setProperty("solr.tests.metrics.merge", "true");
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System.setProperty("solr.tests.metrics.mergeDetails", "false");
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System.setProperty("solr.tests.metrics.directory", "true");
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System.setProperty("solr.tests.metrics.directoryDetails", "false");
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initCore("solrconfig-indexmetrics.xml", "schema.xml");
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addDocs();
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MetricRegistry registry = h.getCoreContainer().getMetricManager().registry(h.getCore().getCoreMetricManager().getRegistryName());
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assertNotNull(registry);
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Map<String, Metric> metrics = registry.getMetrics();
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assertEquals(10, metrics.entrySet().stream().filter(e -> e.getKey().startsWith("INDEX")).count());
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assertEquals(2, metrics.entrySet().stream().filter(e -> e.getKey().startsWith("DIRECTORY")).count());
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// check basic index meters
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Timer timer = (Timer)metrics.get("INDEX.merge.minor");
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assertTrue("minorMerge: " + timer.getCount(), timer.getCount() >= 3);
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timer = (Timer)metrics.get("INDEX.merge.major");
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assertEquals("majorMerge: " + timer.getCount(), 0, timer.getCount());
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// check detailed meters
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assertNull((Meter)metrics.get("INDEX.merge.major.docs"));
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Meter meter = (Meter)metrics.get("INDEX.flush");
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assertTrue("flush: " + meter.getCount(), meter.getCount() > 10);
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// check basic directory meters
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meter = (Meter)metrics.get("DIRECTORY.total.reads");
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assertTrue("totalReads", meter.getCount() > 0);
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meter = (Meter)metrics.get("DIRECTORY.total.writes");
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assertTrue("totalWrites", meter.getCount() > 0);
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// check detailed meters
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Histogram histogram = (Histogram)metrics.get("DIRECTORY.total.readSizes");
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assertNull("readSizes", histogram);
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histogram = (Histogram)metrics.get("DIRECTORY.total.writeSizes");
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assertNull("writeSizes", histogram);
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meter = (Meter)metrics.get("DIRECTORY.segments.writes");
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assertNull("segmentsWrites", meter);
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histogram = (Histogram)metrics.get("DIRECTORY.segments.writeSizes");
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assertNull("segmentsWriteSizes", histogram);
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}
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@Test
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public void testIndexNoMetrics() throws Exception {
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System.setProperty("solr.tests.metrics.merge", "false");
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System.setProperty("solr.tests.metrics.mergeDetails", "false");
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System.setProperty("solr.tests.metrics.directory", "false");
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System.setProperty("solr.tests.metrics.directoryDetails", "false");
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initCore("solrconfig-indexmetrics.xml", "schema.xml");
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addDocs();
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|
||||
MetricRegistry registry = h.getCoreContainer().getMetricManager().registry(h.getCore().getCoreMetricManager().getRegistryName());
|
||||
assertNotNull(registry);
|
||||
|
||||
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();
|
||||
|
||||
MetricRegistry registry = h.getCoreContainer().getMetricManager().registry(h.getCore().getCoreMetricManager().getRegistryName());
|
||||
assertNotNull(registry);
|
||||
|
||||
Map<String, Metric> metrics = registry.getMetrics();
|
||||
|
||||
|
|
@ -70,8 +143,10 @@ public class SolrIndexMetricsTest extends SolrTestCaseJ4 {
|
|||
assertTrue("minorMerge: " + timer.getCount(), timer.getCount() >= 3);
|
||||
timer = (Timer)metrics.get("INDEX.merge.major");
|
||||
assertEquals("majorMerge: " + timer.getCount(), 0, timer.getCount());
|
||||
// check detailed meters
|
||||
Meter meter = (Meter)metrics.get("INDEX.merge.major.docs");
|
||||
assertEquals("majorMergeDocs: " + meter.getCount(), 0, meter.getCount());
|
||||
|
||||
meter = (Meter)metrics.get("INDEX.flush");
|
||||
assertTrue("flush: " + meter.getCount(), meter.getCount() > 10);
|
||||
|
||||
|
|
@ -80,11 +155,11 @@ public class SolrIndexMetricsTest extends SolrTestCaseJ4 {
|
|||
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);
|
||||
// check detailed meters
|
||||
meter = (Meter)metrics.get("DIRECTORY.segments.writes");
|
||||
assertTrue("segmentsWrites", meter.getCount() > 0);
|
||||
histogram = (Histogram)metrics.get("DIRECTORY.segments.writeSizes");
|
||||
|
|
|
|||
Loading…
Reference in New Issue