Examples of org.apache.lucene.index.IndexWriter.commit()

Class org.apache.lucene.index.IndexWriter

Examples of org.apache.lucene.index.IndexWriter.commit()

org.apache.lucene.index.IndexWriter.commit()

Commits all pending changes (added & deleted documents, segment merges, added indexes, etc.) to the index, and syncs all referenced index files, such that a reader will see the changes and the index updates will survive an OS or machine crash or power loss. Note that this does not wait for any running background merges to finish. This may be a costly operation, so you should test the cost in your application and do it only when really necessary.

Note that this operation calls Directory.sync on the index files. That call should not return until the file contents & metadata are on stable storage. For FSDirectory, this calls the OS's fsync. But, beware: some hardware devices may in fact cache writes even during fsync, and return before the bits are actually on stable storage, to give the appearance of faster performance. If you have such a device, and it does not have a battery backup (for example) then on power loss it may still lose data. Lucene cannot guarantee consistency on such devices.

NOTE: if this method hits an OutOfMemoryError you should immediately close the writer. See above for details.
@see #prepareCommit @see #commit(Map)

    // swap in new codec for currently written segments
    if (VERBOSE) {
      System.out.println("TEST: add docs w/ Standard codec for content field");
    }
    addDocs2(writer, 10);
    writer.commit();
    codec = iwconf.getCodec();
    assertEquals(30, writer.maxDoc());
    assertQuery(new Term("content", "bbb"), dir, 10);
    assertQuery(new Term("content", "ccc"), dir, 10);   ////
    assertQuery(new Term("content", "aaa"), dir, 10);

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    if (VERBOSE) {
      System.out.println("TEST: add more docs w/ new codec");
    }
    addDocs2(writer, 10);
    writer.commit();
    assertQuery(new Term("content", "ccc"), dir, 10);
    assertQuery(new Term("content", "bbb"), dir, 20);
    assertQuery(new Term("content", "aaa"), dir, 10);
    assertEquals(40, writer.maxDoc());

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        writer.addDocument(doc);
      }
      if (random().nextBoolean()) {
        writer.forceMerge(1);
      }
      writer.commit();
      assertEquals((i + 1) * docsPerRound, writer.maxDoc());
      writer.close();
    }
    dir.close();
  }

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          afterRefreshCalled.set(true);
        }
      }
    });
    iw.addDocument(new Document());
    iw.commit();
    assertFalse(afterRefreshCalled.get());
    sm.maybeRefreshBlocking();
    assertTrue(afterRefreshCalled.get());
    sm.close();
    iw.close();

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          afterRefreshCalled.set(true);
        }
      }
    });
    iw.addDocument(new Document());
    iw.commit();
    assertFalse(afterRefreshCalled.get());
    sm.maybeRefreshBlocking();
    assertTrue(afterRefreshCalled.get());
    sm.close();
    iw.close();

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    } catch (Exception e) {
      throw new IOException(e);
    } finally {
      testWriter.commit();
      cvWriter.commit();
      trainingWriter.commit();
      // close IWs
      testWriter.close();
      cvWriter.close();
      trainingWriter.close();
    }

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    Directory dir = newDirectory();
    // Test can deadlock if we use SMS:
    IndexWriter writer = new IndexWriter(dir, newIndexWriterConfig(
        TEST_VERSION_CURRENT, new MockAnalyzer(random())).setMergeScheduler(new ConcurrentMergeScheduler()));
    writer.addDocument(new Document());
    writer.commit();
    final CountDownLatch awaitEnterWarm = new CountDownLatch(1);
    final CountDownLatch awaitClose = new CountDownLatch(1);
    final AtomicBoolean triedReopen = new AtomicBoolean(false);
    final ExecutorService es = random().nextBoolean() ? null : Executors.newCachedThreadPool(new NamedThreadFactory("testIntermediateClose"));
    final SearcherFactory factory = new SearcherFactory() {

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      assertEquals(1, searcher.getIndexReader().numDocs());
    } finally {
      searcherManager.release(searcher);
    }
    writer.addDocument(new Document());
    writer.commit();
    final AtomicBoolean success = new AtomicBoolean(false);
    final Throwable[] exc = new Throwable[1];
    Thread thread = new Thread(new Runnable() {
      @Override
      public void run() {

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    IndexWriter iw = getRunData().getIndexWriter();
    if (iw != null) {
      if (commitUserData != null) {
        iw.setCommitData(commitUserData);
      }
      iw.commit();
    }
    
    return 1;
  }
}

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    // Add a facet to the index
    addFacets(iParams, indexWriter, taxoWriter, "a", "b");


    // Commit Changes
    indexWriter.commit();
    taxoWriter.commit();


    // Open readers
    DirectoryReader indexReader = DirectoryReader.open(indexDir);
    TaxonomyReader taxoReader = new DirectoryTaxonomyReader(taxoDir);

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