Examples with Gauge com.codahale.metrics.Gauge used on opensource projects

Example 46 with Gauge

use of com.codahale.metrics.Gauge in project lucene-solr by apache.

the class TestIndexSearcher method testReopen.

public void testReopen() throws Exception {
    assertU(adoc("id", "1", "v_t", "Hello Dude", "v_s1", "string1"));
    assertU(adoc("id", "2", "v_t", "Hello Yonik", "v_s1", "string2"));
    assertU(commit());
    SolrQueryRequest sr1 = req("q", "foo");
    IndexReader r1 = sr1.getSearcher().getRawReader();
    String sval1 = getStringVal(sr1, "v_s1", 0);
    assertEquals("string1", sval1);
    assertU(adoc("id", "3", "v_s1", "{!literal}"));
    assertU(adoc("id", "4", "v_s1", "other stuff"));
    assertU(commit());
    SolrQueryRequest sr2 = req("q", "foo");
    IndexReader r2 = sr2.getSearcher().getRawReader();
    // make sure the readers share the first segment
    // Didn't work w/ older versions of lucene2.9 going from segment -> multi
    assertEquals(r1.leaves().get(0).reader(), r2.leaves().get(0).reader());
    assertU(adoc("id", "5", "v_f", "3.14159"));
    assertU(adoc("id", "6", "v_f", "8983", "v_s1", "string6"));
    assertU(commit());
    SolrQueryRequest sr3 = req("q", "foo");
    IndexReader r3 = sr3.getSearcher().getRawReader();
    // make sure the readers share segments
    // assertEquals(r1.getLeafReaders()[0], r3.getLeafReaders()[0]);
    assertEquals(r2.leaves().get(0).reader(), r3.leaves().get(0).reader());
    assertEquals(r2.leaves().get(1).reader(), r3.leaves().get(1).reader());
    sr1.close();
    sr2.close();
    // should currently be 1, but this could change depending on future index management
    int baseRefCount = r3.getRefCount();
    assertEquals(1, baseRefCount);
    Map<String, Metric> metrics = h.getCore().getCoreMetricManager().getRegistry().getMetrics();
    Gauge<Date> g = (Gauge<Date>) metrics.get("SEARCHER.searcher.registeredAt");
    Date sr3SearcherRegAt = g.getValue();
    // nothing has changed
    assertU(commit());
    SolrQueryRequest sr4 = req("q", "foo");
    assertSame("nothing changed, searcher should be the same", sr3.getSearcher(), sr4.getSearcher());
    assertEquals("nothing changed, searcher should not have been re-registered", sr3SearcherRegAt, g.getValue());
    IndexReader r4 = sr4.getSearcher().getRawReader();
    // force an index change so the registered searcher won't be the one we are testing (and
    // then we should be able to test the refCount going all the way to 0
    assertU(adoc("id", "7", "v_f", "7574"));
    assertU(commit());
    // test that reader didn't change
    assertSame(r3, r4);
    assertEquals(baseRefCount, r4.getRefCount());
    sr3.close();
    assertEquals(baseRefCount, r4.getRefCount());
    sr4.close();
    assertEquals(baseRefCount - 1, r4.getRefCount());
    SolrQueryRequest sr5 = req("q", "foo");
    IndexReaderContext rCtx5 = sr5.getSearcher().getTopReaderContext();
    assertU(delI("1"));
    assertU(commit());
    SolrQueryRequest sr6 = req("q", "foo");
    IndexReaderContext rCtx6 = sr6.getSearcher().getTopReaderContext();
    // only a single doc left in the first segment
    assertEquals(1, rCtx6.leaves().get(0).reader().numDocs());
    // readers now different
    assertTrue(!rCtx5.leaves().get(0).reader().equals(rCtx6.leaves().get(0).reader()));
    sr5.close();
    sr6.close();
}

Example 47 with Gauge

use of com.codahale.metrics.Gauge in project lucene-solr by apache.

the class MetricUtils method convertMetric.

/**
   * Convert a single instance of metric into a map or flattened object.
   * @param n metric name
   * @param metric metric instance
   * @param propertyFilter limit what properties of a metric are returned
   * @param skipHistograms discard any {@link Histogram}-s and histogram parts of {@link Timer}-s.
   * @param skipAggregateValues discard internal values of {@link AggregateMetric}-s.
   * @param compact use compact representation for counters and gauges.
   * @param simple use simplified representation for complex metrics - instead of a (name, map)
   *             only the selected (name "." key, value) pairs will be produced.
   * @param consumer consumer that accepts produced objects
   */
static void convertMetric(String n, Metric metric, PropertyFilter propertyFilter, boolean skipHistograms, boolean skipAggregateValues, boolean compact, boolean simple, BiConsumer<String, Object> consumer) {
    if (metric instanceof Counter) {
        Counter counter = (Counter) metric;
        convertCounter(n, counter, propertyFilter, compact, consumer);
    } else if (metric instanceof Gauge) {
        Gauge gauge = (Gauge) metric;
        try {
            convertGauge(n, gauge, propertyFilter, simple, compact, consumer);
        } catch (InternalError ie) {
            if (n.startsWith("memory.") && ie.getMessage().contains("Memory Pool not found")) {
                LOG.warn("Error converting gauge '" + n + "', possible JDK bug: SOLR-10362", ie);
                consumer.accept(n, null);
            } else {
                throw ie;
            }
        }
    } else if (metric instanceof Meter) {
        Meter meter = (Meter) metric;
        convertMeter(n, meter, propertyFilter, simple, consumer);
    } else if (metric instanceof Timer) {
        Timer timer = (Timer) metric;
        convertTimer(n, timer, propertyFilter, skipHistograms, simple, consumer);
    } else if (metric instanceof Histogram) {
        if (!skipHistograms) {
            Histogram histogram = (Histogram) metric;
            convertHistogram(n, histogram, propertyFilter, simple, consumer);
        }
    } else if (metric instanceof AggregateMetric) {
        convertAggregateMetric(n, (AggregateMetric) metric, propertyFilter, skipAggregateValues, simple, consumer);
    }
}

Example 48 with Gauge

use of com.codahale.metrics.Gauge in project lucene-solr by apache.

the class BasicFunctionalityTest method testSomeStuff.

@Test
public void testSomeStuff() throws Exception {
    clearIndex();
    SolrCore core = h.getCore();
    // test that we got the expected config, not just hardcoded defaults
    assertNotNull(core.getRequestHandler("mock"));
    // test stats call
    SolrMetricManager manager = core.getCoreContainer().getMetricManager();
    String registry = core.getCoreMetricManager().getRegistryName();
    Map<String, Metric> metrics = manager.registry(registry).getMetrics();
    assertTrue(metrics.containsKey("CORE.coreName"));
    assertTrue(metrics.containsKey("CORE.refCount"));
    Gauge<Number> g = (Gauge<Number>) metrics.get("CORE.refCount");
    assertTrue(g.getValue().intValue() > 0);
    lrf.args.put(CommonParams.VERSION, "2.2");
    assertQ("test query on empty index", req("qlkciyopsbgzyvkylsjhchghjrdf"), "//result[@numFound='0']");
    // test escaping of ";"
    assertU("deleting 42 for no reason at all", delI("42"));
    assertU("adding doc#42", adoc("id", "42", "val_s", "aa;bb"));
    assertU("does commit work?", commit());
    assertQ("backslash escaping semicolon", req("id:42 AND val_s:aa\\;bb"), "//*[@numFound='1']", "//int[@name='id'][.='42']");
    assertQ("quote escaping semicolon", req("id:42 AND val_s:\"aa;bb\""), "//*[@numFound='1']", "//int[@name='id'][.='42']");
    assertQ("no escaping semicolon", req("id:42 AND val_s:aa"), "//*[@numFound='0']");
    assertU(delI("42"));
    assertU(commit());
    assertQ(req("id:42"), "//*[@numFound='0']");
    // test overwrite default of true
    assertU(adoc("id", "42", "val_s", "AAA"));
    assertU(adoc("id", "42", "val_s", "BBB"));
    assertU(commit());
    assertQ(req("id:42"), "//*[@numFound='1']", "//str[.='BBB']");
    assertU(adoc("id", "42", "val_s", "CCC"));
    assertU(adoc("id", "42", "val_s", "DDD"));
    assertU(commit());
    assertQ(req("id:42"), "//*[@numFound='1']", "//str[.='DDD']");
    // test deletes
    String[] adds = new String[] { add(doc("id", "101"), "overwrite", "true"), add(doc("id", "101"), "overwrite", "true"), add(doc("id", "105"), "overwrite", "false"), add(doc("id", "102"), "overwrite", "true"), add(doc("id", "103"), "overwrite", "false"), add(doc("id", "101"), "overwrite", "true") };
    for (String a : adds) {
        assertU(a, a);
    }
    assertU(commit());
    // test maxint
    assertQ(req("q", "id:[100 TO 110]", "rows", "2147483647"), "//*[@numFound='4']");
    // test big limit
    assertQ(req("q", "id:[100 TO 111]", "rows", "1147483647"), "//*[@numFound='4']");
    assertQ(req("id:[100 TO 110]"), "//*[@numFound='4']");
    assertU(delI("102"));
    assertU(commit());
    assertQ(req("id:[100 TO 110]"), "//*[@numFound='3']");
    assertU(delI("105"));
    assertU(commit());
    assertQ(req("id:[100 TO 110]"), "//*[@numFound='2']");
    assertU(delQ("id:[100 TO 110]"));
    assertU(commit());
    assertQ(req("id:[100 TO 110]"), "//*[@numFound='0']");
    assertU(h.simpleTag("rollback"));
    assertU(commit());
}

Example 49 with Gauge

use of com.codahale.metrics.Gauge in project sling by apache.

the class MetricWebConsolePlugin method addGaugeDetails.

private void addGaugeDetails(PrintWriter pw, SortedMap<String, Gauge> gauges) {
    if (gauges.isEmpty()) {
        return;
    }
    pw.println("<br>");
    pw.println("<div class='table'>");
    pw.println("<div class='ui-widget-header ui-corner-top buttonGroup'>Gauges</div>");
    pw.println("<table class='nicetable' id='data-gauges'>");
    pw.println("<thead>");
    pw.println("<tr>");
    pw.println("<th class='header'>Name</th>");
    pw.println("<th class='header'>Value</th>");
    pw.println("</tr>");
    pw.println("</thead>");
    pw.println("<tbody>");
    String rowClass = "odd";
    for (Map.Entry<String, Gauge> e : gauges.entrySet()) {
        Gauge g = e.getValue();
        String name = e.getKey();
        pw.printf("<tr class='%s ui-state-default'>%n", rowClass);
        pw.printf("<td>%s</td>", name);
        pw.printf("<td>%s</td>", g.getValue());
        pw.println("</tr>");
        rowClass = "odd".equals(rowClass) ? "even" : "odd";
    }
    pw.println("</tbody>");
    pw.println("</table>");
    pw.println("</div>");
}

Example 50 with Gauge

use of com.codahale.metrics.Gauge in project metrics by dropwizard.

the class JmxReporterTest method registersMBeansForMetricObjectsUsingProvidedObjectNameFactory.

@Test
public void registersMBeansForMetricObjectsUsingProvidedObjectNameFactory() throws Exception {
    ObjectName n = new ObjectName(name + ":name=dummy");
    try {
        String widgetName = "something";
        when(mockObjectNameFactory.createName(any(String.class), any(String.class), any(String.class))).thenReturn(n);
        Gauge aGauge = mock(Gauge.class);
        when(aGauge.getValue()).thenReturn(1);
        JmxReporter reporter = JmxReporter.forRegistry(registry).registerWith(mBeanServer).inDomain(name).createsObjectNamesWith(mockObjectNameFactory).build();
        registry.register(widgetName, aGauge);
        reporter.start();
        verify(mockObjectNameFactory).createName(eq("gauges"), any(String.class), eq("something"));
    // verifyNoMoreInteractions(mockObjectNameFactory);
    } finally {
        reporter.stop();
        if (mBeanServer.isRegistered(n)) {
            mBeanServer.unregisterMBean(n);
        }
    }
}