Exemplo n.º 1
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  /**
   * Test that we get notification if .META. moves.
   *
   * @throws IOException
   * @throws InterruptedException
   * @throws KeeperException
   */
  @Test
  public void testThatIfMETAMovesWeAreNotified()
      throws IOException, InterruptedException, KeeperException {
    HConnection connection = Mockito.mock(HConnection.class);
    constructAndStartCatalogTracker(connection);

    RootLocationEditor.setRootLocation(
        this.watcher, new ServerName("example.com", 1234, System.currentTimeMillis()));
  }
Exemplo n.º 2
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  private void testVerifyMetaRegionLocationWithException(Exception ex)
      throws IOException, InterruptedException, KeeperException {
    // Mock an HRegionInterface.
    final HRegionInterface implementation = Mockito.mock(HRegionInterface.class);
    HConnection connection = mockConnection(implementation);

    // If a 'get' is called on mocked interface, throw connection refused.
    Mockito.when(implementation.get((byte[]) Mockito.any(), (Get) Mockito.any())).thenThrow(ex);
    // Now start up the catalogtracker with our doctored Connection.
    final CatalogTracker ct = constructAndStartCatalogTracker(connection);
    RootLocationEditor.setRootLocation(this.watcher, SN);
    long timeout = UTIL.getConfiguration().getLong("hbase.catalog.verification.timeout", 1000);
    Assert.assertFalse(ct.verifyMetaRegionLocation(timeout));
  }
Exemplo n.º 3
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  @After
  public void after() {
    try {
      // Clean out root location or later tests will be confused... they presume
      // start fresh in zk.
      RootLocationEditor.deleteRootLocation(this.watcher);
    } catch (KeeperException e) {
      LOG.warn("Unable to delete root location", e);
    }

    // Clear out our doctored connection or could mess up subsequent tests.
    HConnectionManager.deleteConnection(UTIL.getConfiguration());

    this.watcher.close();
  }
Exemplo n.º 4
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 /**
  * Test get of root region fails properly if nothing to connect to.
  *
  * @throws IOException
  * @throws InterruptedException
  * @throws KeeperException
  */
 @Test
 public void testVerifyRootRegionLocationFails()
     throws IOException, InterruptedException, KeeperException {
   HConnection connection = Mockito.mock(HConnection.class);
   ConnectException connectException = new ConnectException("Connection refused");
   final HRegionInterface implementation = Mockito.mock(HRegionInterface.class);
   Mockito.when(implementation.getRegionInfo((byte[]) Mockito.any())).thenThrow(connectException);
   Mockito.when(
           connection.getHRegionConnection(
               Mockito.anyString(), Mockito.anyInt(), Mockito.anyBoolean()))
       .thenReturn(implementation);
   final CatalogTracker ct = constructAndStartCatalogTracker(connection);
   RootLocationEditor.setRootLocation(
       this.watcher, new ServerName("example.com", 1234, System.currentTimeMillis()));
   Assert.assertFalse(ct.verifyRootRegionLocation(100));
 }
Exemplo n.º 5
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 private ServerName setRootLocation() throws KeeperException {
   RootLocationEditor.setRootLocation(this.watcher, SN);
   return SN;
 }
Exemplo n.º 6
0
  /**
   * Test for HBASE-4288. Throw an IOE when trying to verify meta region and prove it doesn't cause
   * master shutdown.
   *
   * @see <a href="https://issues.apache.org/jira/browse/HBASE-4288">HBASE-4288</a>
   * @throws IOException
   * @throws InterruptedException
   * @throws KeeperException
   */
  @Test
  public void testServerNotRunningIOException()
      throws IOException, InterruptedException, KeeperException {
    // Mock an HRegionInterface.
    final HRegionInterface implementation = Mockito.mock(HRegionInterface.class);
    HConnection connection = mockConnection(implementation);

    // If a 'getRegionInfo' is called on mocked HRegionInterface, throw IOE
    // the first time.  'Succeed' the second time we are called.
    Mockito.when(implementation.getRegionInfo((byte[]) Mockito.any()))
        .thenThrow(new IOException("Server not running, aborting"))
        .thenReturn(new HRegionInfo());

    // After we encounter the above 'Server not running', we should catch the
    // IOE and go into retrying for the meta mode.  We'll do gets on -ROOT- to
    // get new meta location.  Return something so this 'get' succeeds
    // (here we mock up getRegionServerWithRetries, the wrapper around
    // the actual get).

    // TODO: Refactor.  This method has been moved out of HConnection.
    // It works for now but has been deprecated.
    Mockito.when(connection.getRegionServerWithRetries((ServerCallable<Result>) Mockito.any()))
        .thenReturn(getMetaTableRowResult());

    // Now start up the catalogtracker with our doctored Connection.
    final CatalogTracker ct = constructAndStartCatalogTracker(connection);
    try {
      // Set a location for root and meta.
      RootLocationEditor.setRootLocation(this.watcher, SN);
      ct.setMetaLocation(SN);
      // Call the method that HBASE-4288 calls.  It will try and verify the
      // meta location and will fail on first attempt then go into a long wait.
      // So, do this in a thread and then reset meta location to break it out
      // of its wait after a bit of time.
      final AtomicBoolean metaSet = new AtomicBoolean(false);
      final CountDownLatch latch = new CountDownLatch(1);
      Thread t =
          new Thread() {
            @Override
            public void run() {
              try {
                latch.countDown();
                metaSet.set(ct.waitForMeta(100000) != null);
              } catch (Exception e) {
                throw new RuntimeException(e);
              }
            }
          };
      t.start();
      latch.await();
      Threads.sleep(1);
      // Now reset the meta as though it were redeployed.
      ct.setMetaLocation(SN);
      t.join();
      Assert.assertTrue(metaSet.get());
    } finally {
      // Clean out root and meta locations or later tests will be confused...
      // they presume start fresh in zk.
      ct.resetMetaLocation();
    }
  }