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)

               writer = LuceneSettings.openWriter(masterDirectory, 3); // 3 or any low setting
               Document doc = new Document();
               Field field = new Field(FIELDNAME, "HA" + toWrite, Store.YES, Index.NOT_ANALYZED);
               doc.add(field);
               writer.addDocument(doc);
               writer.commit();
               lastWrittenTermId = toWrite;
               if (VISUAL_PROGRESS_FEEDBACK) System.out.println("Written: " + doc);
               Thread.sleep( 1000 / WRITES_PER_SECOND );
            } catch (IOException e) {
               failed(e);

View Full Code Here

   }


   public static void initializeDirectory(Directory directory) throws IOException {
      IndexWriterConfig indexWriterConfig = new IndexWriterConfig(LuceneSettings.LUCENE_VERSION, LuceneSettings.analyzer);
      IndexWriter iwriter = new IndexWriter(directory, indexWriterConfig);
      iwriter.commit();
      iwriter.close();
      //reopen to check for index
      IndexReader reader = IndexReader.open(directory);
      reader.close();
   }

View Full Code Here

    */
   public static void removeByTerm(Directory dir, String term) throws IOException {
      IndexWriterConfig indexWriterConfig = new IndexWriterConfig(LuceneSettings.LUCENE_VERSION, LuceneSettings.analyzer);
      IndexWriter iw = new IndexWriter(dir, indexWriterConfig);
      iw.deleteDocuments(new Term("body", term));
      iw.commit();
      iw.close();
   }


   /**
    * Used in test to verify an Index

View Full Code Here

      IndexWriter iw = new IndexWriter(dir, indexWriterConfig);
      Document doc = new Document();
      doc.add(new Field("id", String.valueOf(id), Field.Store.YES, Field.Index.NOT_ANALYZED));
      doc.add(new Field("body", text, Field.Store.NO, Field.Index.ANALYZED));
      iw.addDocument(doc);
      iw.commit();
      iw.close();
   }


   /**
    * Optimizing an index is not recommended nowadays, still it's an interesting

View Full Code Here

         else {
            doc.add(new Field("secondaryField", term, Store.NO, Index.NOT_ANALYZED));
         }
         iwriter.addDocument(doc);
      }
      iwriter.commit();
      iwriter.close();
      return state;
   }


   @BeforeClass

View Full Code Here

   */
  public void commitIndexWriter(ErrorContextBuilder errorContextBuilder) {
    IndexWriter indexWriter = writer.get();
    if ( indexWriter != null ) {
      try {
        indexWriter.commit();
        log.trace( "Index changes committed." );
      }
      catch (IOException ioe) {
        handleIOException( ioe, errorContextBuilder );
      }

View Full Code Here

        dir.setWrapLockFactory(false); // we are gonna explicitly test we get this back
        assertTrue("RAMDirectory.setLockFactory did not take",
                   NoLockFactory.class.isInstance(dir.getLockFactory()));


        IndexWriter writer = new IndexWriter(dir, new IndexWriterConfig(TEST_VERSION_CURRENT, new MockAnalyzer(random())));
        writer.commit(); // required so the second open succeed 
        // Create a 2nd IndexWriter.  This is normally not allowed but it should run through since we're not
        // using any locks:
        IndexWriter writer2 = null;
        try {
            writer2 = new IndexWriter(dir, new IndexWriterConfig(TEST_VERSION_CURRENT, new MockAnalyzer(random())).setOpenMode(OpenMode.APPEND));

View Full Code Here

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

View Full Code Here

      if (i > 0 && i % 50 == 0) {
        Thread commitThread =  new Thread(new Runnable() {
            @Override
            public void run() {
              try {
                iw.commit();
                IndexCommit ic = sdp.snapshot();
                for (String name : ic.getFileNames()) {
                  //distribute, and backup
                  //System.out.println(names);
                  assertTrue(dir.fileExists(name));

View Full Code Here

    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() {

View Full Code Here

0 1 2 3 4 5 6 7 8 9

TOP

All source code are property of their respective owners. Java is a trademark of Sun Microsystems, Inc and owned by ORACLE Inc. Contact coftware#gmail.com.