Package org.apache.lucene.store

Examples of org.apache.lucene.store.Lock$With

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      ensureOpen();
      if (stale)
        throw new StaleReaderException("IndexReader out of date and no longer valid for delete, undelete, or setNorm operations");

      if (writeLock == null) {
        Lock writeLock = directory.makeLock(IndexWriter.WRITE_LOCK_NAME);
        if (!writeLock.obtain(IndexWriter.WRITE_LOCK_TIMEOUT)) // obtain write lock
          throw new LockObtainFailedException("Index locked for write: " + writeLock);
        this.writeLock = writeLock;

        // we have to check whether index has changed since this reader was opened.
        // if so, this reader is no longer valid for
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    @Test public void testSimpleLocking() throws Exception {
        ByteBufferCache cache = new ByteBufferCache(40, 80, true);
        ByteBufferDirectory dir = new ByteBufferDirectory(cache);

        Lock lock = dir.makeLock("testlock");

        assertThat(lock.isLocked(), equalTo(false));
        assertThat(lock.obtain(200), equalTo(true));
        assertThat(lock.isLocked(), equalTo(true));
        try {
            assertThat(lock.obtain(200), equalTo(false));
            assertThat("lock should be thrown", false, equalTo(true));
        } catch (LockObtainFailedException e) {
            // all is well
        }
        lock.release();
        assertThat(lock.isLocked(), equalTo(false));
        dir.close();
        cache.close();
    }
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            return NO_SNAPSHOT_LOCK;
        }
        AbstractFsBlobContainer fsBlobContainer = (AbstractFsBlobContainer) blobContainer;
        NativeFSLockFactory lockFactory = new NativeFSLockFactory(fsBlobContainer.filePath());

        Lock lock = lockFactory.makeLock("snapshot.lock");
        boolean obtained = lock.obtain();
        if (!obtained) {
            throw new ElasticSearchIllegalStateException("failed to obtain snapshot lock [" + lock + "]");
        }
        return new FsSnapshotLock(lock);
    }
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            lock = null;
            localNodeId = -1;
            return;
        }

        Lock lock = null;
        File dir = null;
        int localNodeId = -1;
        IOException lastException = null;
        for (int i = 0; i < 50; i++) {
            dir = new File(new File(environment.dataWithClusterFile(), "nodes"), Integer.toString(i));
            if (!dir.exists()) {
                FileSystemUtils.mkdirs(dir);
            }
            logger.trace("obtaining node lock on {} ...", dir.getAbsolutePath());
            try {
                NativeFSLockFactory lockFactory = new NativeFSLockFactory(dir);
                Lock tmpLock = lockFactory.makeLock("node.lock");
                boolean obtained = tmpLock.obtain();
                if (obtained) {
                    lock = tmpLock;
                    localNodeId = i;
                    break;
                } else {
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  @Override
  public Lock makeLock(String lockName) {
    final Path lockPath = new Path(_dir, lockName);
    final AtomicLong _lastCheck = new AtomicLong();

    return new Lock() {
      private boolean _set;

      @Override
      public boolean obtain() throws IOException {
        Tracer trace = Trace.trace("filesystem - obtain", Trace.param("lockPath", lockPath));
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  }

  @Override
  public Lock makeLock(String lockName) {
    final Path lockPath = new Path(_dir, lockName);
    return new Lock() {
      private boolean _set;

      @Override
      public boolean obtain() throws IOException {
        Tracer trace = Trace.trace("filesystem - release", Trace.param("lockPath", lockPath));
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  void createSnapshot(final IndexCommit indexCommit, ReplicationHandler replicationHandler) {
    NamedList details = new NamedList();
    details.add("startTime", new Date().toString());
    File snapShotDir = null;
    String directoryName = null;
    Lock lock = null;
    try {
      SimpleDateFormat fmt = new SimpleDateFormat(DATE_FMT);
      directoryName = "snapshot." + fmt.format(new Date());
      lock = lockFactory.makeLock(directoryName + ".lock");
      if (lock.isLocked()) return;
      snapShotDir = new File(snapDir, directoryName);
      if (!snapShotDir.mkdir()) {
        LOG.warn("Unable to create snapshot directory: " + snapShotDir.getAbsolutePath());
        return;
      }
      Collection<String> files = indexCommit.getFileNames();
      FileCopier fileCopier = new FileCopier(solrCore.getDeletionPolicy(), indexCommit);
      fileCopier.copyFiles(files, snapShotDir);

      details.add("fileCount", files.size());
      details.add("status", "success");
      details.add("snapshotCompletedAt", new Date().toString());
    } catch (Exception e) {
      SnapPuller.delTree(snapShotDir);
      LOG.error("Exception while creating snapshot", e);
      details.add("snapShootException", e.getMessage());
    } finally {
        replicationHandler.core.getDeletionPolicy().releaseCommitPoint(indexCommit.getVersion());  
        replicationHandler.snapShootDetails = details;
      if (lock != null) {
        try {
          lock.release();
        } catch (IOException e) {
          LOG.error("Unable to release snapshoot lock: " + directoryName + ".lock");
        }
      }
    }
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      ensureOpen();
      if (stale)
        throw new StaleReaderException("IndexReader out of date and no longer valid for delete, undelete, or setNorm operations");

      if (writeLock == null) {
        Lock writeLock = directory.makeLock(IndexWriter.WRITE_LOCK_NAME);
        if (!writeLock.obtain(IndexWriterConfig.WRITE_LOCK_TIMEOUT)) // obtain write lock
          throw new LockObtainFailedException("Index locked for write: " + writeLock);
        this.writeLock = writeLock;

        // we have to check whether index has changed since this reader was opened.
        // if so, this reader is no longer valid for
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  private void aquireWriteLock() throws IOException {
    if (stale)
      throw new IOException("IndexReader out of date and no longer valid for delete, undelete, or setNorm operations");

    if (writeLock == null) {
      Lock writeLock = directory.makeLock(IndexWriter.WRITE_LOCK_NAME);
      if (!writeLock.obtain(IndexWriter.WRITE_LOCK_TIMEOUT)) // obtain write lock
        throw new IOException("Index locked for write: " + writeLock);
      this.writeLock = writeLock;

      // we have to check whether index has changed since this reader was opened.
      // if so, this reader is no longer valid for deletion
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    if (create) {
      // Clear the write lock in case it's leftover:
      directory.clearLock(IndexWriter.WRITE_LOCK_NAME);
    }

    Lock writeLock = directory.makeLock(IndexWriter.WRITE_LOCK_NAME);
    if (!writeLock.obtain(writeLockTimeout)) // obtain write lock
      throw new IOException("Index locked for write: " + writeLock);
    this.writeLock = writeLock;                   // save it

    try {
      if (create) {
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  • com.esri.gpt.catalog.lucene.LuceneIndexOptimizer
  • com.esri.gpt.catalog.lucene.LuceneIndexSynchronizer
  • com.senseidb.indexing.hadoop.reduce.FileSystemDirectory
  • net.paoding.analysis.knife.PaodingMaker
  • org.apache.blur.index.OptimisticLockFactory
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