Example usage for org.apache.lucene.index TieredMergePolicy getMaxMergeAtOnce

Introduction

In this page you can find the example usage for org.apache.lucene.index TieredMergePolicy getMaxMergeAtOnce.

Prototype

public int getMaxMergeAtOnce() 

Source Link

Document

Returns the current maxMergeAtOnce setting.

Usage

From source file:org.apache.solr.core.TestMergePolicyConfig.java

License:Apache License

public void testLegacyMergePolicyConfig() throws Exception {
    final boolean expectCFS = Boolean.parseBoolean(System.getProperty("useCompoundFile"));

    initCore("solrconfig-mergepolicy-legacy.xml", "schema-minimal.xml");
    IndexWriterConfig iwc = solrConfig.indexConfig.toIndexWriterConfig(h.getCore().getLatestSchema());
    assertEquals(expectCFS, iwc.getUseCompoundFile());

    assertEquals("termIndexInteval", 256, iwc.getTermIndexInterval());

    TieredMergePolicy tieredMP = assertAndCast(TieredMergePolicy.class, iwc.getMergePolicy());

    assertEquals(7, tieredMP.getMaxMergeAtOnce());
    assertEquals(7.0D, tieredMP.getSegmentsPerTier(), 0.0D);
    assertEquals(expectCFS ? 1.0D : 0.0D, tieredMP.getNoCFSRatio(), 0.0D);

    assertCommitSomeNewDocs();/*  w  w w.j  a  va2s .  co m*/
    assertCompoundSegments(h.getCore(), expectCFS);
}

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From source file:org.apache.solr.core.TestMergePolicyConfig.java

License:Apache License

public void testTieredMergePolicyConfig() throws Exception {
    final boolean expectCFS = Boolean.parseBoolean(System.getProperty("useCompoundFile"));

    initCore("solrconfig-tieredmergepolicy.xml", "schema-minimal.xml");
    IndexWriterConfig iwc = solrConfig.indexConfig.toIndexWriterConfig(h.getCore().getLatestSchema());
    assertEquals(expectCFS, iwc.getUseCompoundFile());

    TieredMergePolicy tieredMP = assertAndCast(TieredMergePolicy.class, iwc.getMergePolicy());

    // set by legacy <mergeFactor> setting
    assertEquals(7, tieredMP.getMaxMergeAtOnce());

    // mp-specific setters
    assertEquals(19, tieredMP.getMaxMergeAtOnceExplicit());
    assertEquals(0.1D, tieredMP.getNoCFSRatio(), 0.0D);
    // make sure we overrode segmentsPerTier 
    // (split from maxMergeAtOnce out of mergeFactor)
    assertEquals(9D, tieredMP.getSegmentsPerTier(), 0.001);

    assertCommitSomeNewDocs();//from ww w.  ja  v  a 2  s  . co m
    // even though we have a single segment (which is 100% of the size of 
    // the index which is higher then our 0.6D threashold) the
    // compound ratio doesn't matter because the segment was never merged
    assertCompoundSegments(h.getCore(), expectCFS);

    assertCommitSomeNewDocs();
    assertNumSegments(h.getCore(), 2);
    assertCompoundSegments(h.getCore(), expectCFS);

    assertU(optimize());
    assertNumSegments(h.getCore(), 1);
    // we've now forced a merge, and the MP ratio should be in play
    assertCompoundSegments(h.getCore(), false);
}

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From source file:org.apache.solr.index.WrapperMergePolicyFactoryTest.java

License:Apache License

public void testProperlyInitializesWrappedMergePolicy() {
    final TieredMergePolicy defaultTMP = new TieredMergePolicy();
    final int testMaxMergeAtOnce = defaultTMP.getMaxMergeAtOnce() * 2;
    final double testMaxMergedSegmentMB = defaultTMP.getMaxMergedSegmentMB() * 10;

    final MergePolicyFactoryArgs args = new MergePolicyFactoryArgs();
    args.add(WrapperMergePolicyFactory.WRAPPED_PREFIX, "test");
    args.add("test.class", TieredMergePolicyFactory.class.getName());
    args.add("test.maxMergeAtOnce", testMaxMergeAtOnce);
    args.add("test.maxMergedSegmentMB", testMaxMergedSegmentMB);
    MergePolicyFactory mpf = new DefaultingWrapperMergePolicyFactory(resourceLoader, args, null) {
        @Override//from w  w w  .  jav  a2s. c  o m
        protected MergePolicy getDefaultWrappedMergePolicy() {
            throw new IllegalStateException("Should not have reached here!");
        }
    };
    final MergePolicy mp = mpf.getMergePolicy();
    assertSame(mp.getClass(), TieredMergePolicy.class);
    final TieredMergePolicy tmp = (TieredMergePolicy) mp;
    assertEquals("maxMergeAtOnce", testMaxMergeAtOnce, tmp.getMaxMergeAtOnce());
    assertEquals("maxMergedSegmentMB", testMaxMergedSegmentMB, tmp.getMaxMergedSegmentMB(), 0.0d);
}

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