Package org.apache.hadoop.hbase.regionserver

Examples of org.apache.hadoop.hbase.regionserver.RegionServerServices

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   * @throws KeeperException
   */
  @Test public void testFailedFlushAborts()
  throws IOException, NodeExistsException, KeeperException {
    final Server server = new MockServer(HTU, false);
    final RegionServerServices rss = new MockRegionServerServices();
    HTableDescriptor htd = TEST_HTD;
    final HRegionInfo hri =
      new HRegionInfo(htd.getName(), HConstants.EMPTY_END_ROW,
        HConstants.EMPTY_END_ROW);
    HRegion region =
      HRegion.createHRegion(hri, HTU.getDataTestDir(),
        HTU.getConfiguration(), htd);
    assertNotNull(region);
    // Spy on the region so can throw exception when close is called.
    HRegion spy = Mockito.spy(region);
    final boolean abort = false;
    Mockito.when(spy.close(abort)).
      thenThrow(new RuntimeException("Mocked failed close!"));
    // The CloseRegionHandler will try to get an HRegion that corresponds
    // to the passed hri -- so insert the region into the online region Set.
    rss.addToOnlineRegions(spy);
    // Assert the Server is NOT stopped before we call close region.
    assertFalse(server.isStopped());
    CloseRegionHandler handler =
      new CloseRegionHandler(server, rss, hri, false, false, -1);
    boolean throwable = false;
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   * @throws KeeperException
   */
  @Test public void testZKClosingNodeVersionMismatch()
  throws IOException, NodeExistsException, KeeperException {
    final Server server = new MockServer(HTU);
    final RegionServerServices rss = new MockRegionServerServices();

    HTableDescriptor htd = TEST_HTD;
    final HRegionInfo hri = TEST_HRI;

    // open a region first so that it can be closed later
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   * @throws KeeperException
   */
  @Test public void testCloseRegion()
  throws IOException, NodeExistsException, KeeperException {
    final Server server = new MockServer(HTU);
    final RegionServerServices rss = new MockRegionServerServices();

    HTableDescriptor htd = TEST_HTD;
    HRegionInfo hri = TEST_HRI;

    // open a region first so that it can be closed later
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      this.zookeeper = new ZooKeeperWatcher(zkConf, TokenServer.class.getSimpleName(),
          this, true);
      this.rpcServer.start();

      // mock RegionServerServices to provide to coprocessor environment
      final RegionServerServices mockServices = new MockRegionServerServices() {
        @Override
        public RpcServerInterface getRpcServer() { return rpcServer; }
      };

      // mock up coprocessor environment
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   * @throws KeeperException
   */
  @Test public void testFailedFlushAborts()
  throws IOException, NodeExistsException, KeeperException {
    final Server server = new MockServer(HTU, false);
    final RegionServerServices rss = new MockRegionServerServices();
    HTableDescriptor htd = TEST_HTD;
    final HRegionInfo hri =
      new HRegionInfo(htd.getTableName(), HConstants.EMPTY_END_ROW,
        HConstants.EMPTY_END_ROW);
    HRegion region =
      HRegion.createHRegion(hri, HTU.getDataTestDir(),
        HTU.getConfiguration(), htd);
    try {
      assertNotNull(region);
      // Spy on the region so can throw exception when close is called.
      HRegion spy = Mockito.spy(region);
      final boolean abort = false;
      Mockito.when(spy.close(abort)).
      thenThrow(new RuntimeException("Mocked failed close!"));
      // The CloseRegionHandler will try to get an HRegion that corresponds
      // to the passed hri -- so insert the region into the online region Set.
      rss.addToOnlineRegions(spy);
      // Assert the Server is NOT stopped before we call close region.
      assertFalse(server.isStopped());
      CloseRegionHandler handler =
          new CloseRegionHandler(server, rss, hri, false, false, -1);
      boolean throwable = false;
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   * @throws KeeperException
   */
  @Test public void testYankingRegionFromUnderIt()
  throws IOException, NodeExistsException, KeeperException {
    final Server server = new MockServer(HTU);
    final RegionServerServices rss = new MockRegionServerServices(HTU.getZooKeeperWatcher());

    HTableDescriptor htd = TEST_HTD;
    final HRegionInfo hri = TEST_HRI;
    HRegion region =
         HRegion.createHRegion(hri, HTU.getDataTestDir(), HTU
            .getConfiguration(), htd);
    assertNotNull(region);
    try {
      OpenRegionHandler handler = new OpenRegionHandler(server, rss, hri, htd) {
        HRegion openRegion() {
          // Open region first, then remove znode as though it'd been hijacked.
          HRegion region = super.openRegion();

          // Don't actually open region BUT remove the znode as though it'd
          // been hijacked on us.
          ZooKeeperWatcher zkw = this.server.getZooKeeper();
          String node = ZKAssign.getNodeName(zkw, hri.getEncodedName());
          try {
            ZKUtil.deleteNodeFailSilent(zkw, node);
          } catch (KeeperException e) {
            throw new RuntimeException("Ugh failed delete of " + node, e);
          }
          return region;
        }
      };
      rss.getRegionsInTransitionInRS().put(
        hri.getEncodedNameAsBytes(), Boolean.TRUE);
      // Call process without first creating OFFLINE region in zk, see if
      // exception or just quiet return (expected).
      handler.process();
      rss.getRegionsInTransitionInRS().put(
        hri.getEncodedNameAsBytes(), Boolean.TRUE);
      ZKAssign.createNodeOffline(server.getZooKeeper(), hri, server.getServerName());
      // Call process again but this time yank the zk znode out from under it
      // post OPENING; again will expect it to come back w/o NPE or exception.
      handler.process();
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  }
 
  @Test
  public void testFailedOpenRegion() throws Exception {
    Server server = new MockServer(HTU);
    RegionServerServices rsServices = new MockRegionServerServices();

    // Create it OFFLINE, which is what it expects
    ZKAssign.createNodeOffline(server.getZooKeeper(), TEST_HRI, server.getServerName());

    // Create the handler
    OpenRegionHandler handler =
      new OpenRegionHandler(server, rsServices, TEST_HRI, TEST_HTD) {
        @Override
        HRegion openRegion() {
          // Fake failure of opening a region due to an IOE, which is caught
          return null;
        }
    };
    rsServices.getRegionsInTransitionInRS().put(
      TEST_HRI.getEncodedNameAsBytes(), Boolean.TRUE);
    handler.process();

    // Handler should have transitioned it to FAILED_OPEN
    RegionTransition rt = RegionTransition.parseFrom(
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  }
 
  @Test
  public void testFailedUpdateMeta() throws Exception {
    Server server = new MockServer(HTU);
    RegionServerServices rsServices = new MockRegionServerServices();

    // Create it OFFLINE, which is what it expects
    ZKAssign.createNodeOffline(server.getZooKeeper(), TEST_HRI, server.getServerName());

    // Create the handler
    OpenRegionHandler handler =
      new OpenRegionHandler(server, rsServices, TEST_HRI, TEST_HTD) {
        @Override
        boolean updateMeta(final HRegion r) {
          // Fake failure of updating META
          return false;
        }
    };
    rsServices.getRegionsInTransitionInRS().put(
      TEST_HRI.getEncodedNameAsBytes(), Boolean.TRUE);
    handler.process();

    // Handler should have transitioned it to FAILED_OPEN
    RegionTransition rt = RegionTransition.parseFrom(
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  }
 
  @Test
  public void testTransitionToFailedOpenEvenIfCleanupFails() throws Exception {
    Server server = new MockServer(HTU);
    RegionServerServices rsServices = new MockRegionServerServices();
    // Create it OFFLINE, which is what it expects
    ZKAssign.createNodeOffline(server.getZooKeeper(), TEST_HRI, server.getServerName());
    // Create the handler
    OpenRegionHandler handler = new OpenRegionHandler(server, rsServices, TEST_HRI, TEST_HTD) {
      @Override
      boolean updateMeta(HRegion r) {
        return false;
      };

      @Override
      void cleanupFailedOpen(HRegion region) throws IOException {
        throw new IOException("FileSystem got closed.");
      }
    };
    rsServices.getRegionsInTransitionInRS().put(TEST_HRI.getEncodedNameAsBytes(), Boolean.TRUE);
    try {
      handler.process();
    } catch (Exception e) {
      // Ignore the IOException that we have thrown from cleanupFailedOpen
    }
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  }

  @Test
  public void testTransitionToFailedOpenFromOffline() throws Exception {
    Server server = new MockServer(HTU);
    RegionServerServices rsServices = new MockRegionServerServices(server.getZooKeeper(),
        server.getServerName());
    // Create it OFFLINE, which is what it expects
    ZKAssign.createNodeOffline(server.getZooKeeper(), TEST_HRI, server.getServerName());
    // Create the handler
    OpenRegionHandler handler = new OpenRegionHandler(server, rsServices, TEST_HRI, TEST_HTD) {

      @Override
      boolean transitionZookeeperOfflineToOpening(String encodedName, int versionOfOfflineNode) {
        return false;
      }
    };
    rsServices.getRegionsInTransitionInRS().put(TEST_HRI.getEncodedNameAsBytes(), Boolean.TRUE);

    handler.process();

    RegionTransition rt = RegionTransition.parseFrom(ZKAssign.getData(server.getZooKeeper(),
        TEST_HRI.getEncodedName()));
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Related Classes of org.apache.hadoop.hbase.regionserver.RegionServerServices

  • org.apache.hadoop.hbase.client.CoprocessorHConnection
  • org.apache.hadoop.hbase.index.coprocessor.regionserver.IndexRegionObserver
  • org.apache.hadoop.hbase.regionserver.handler.TestCloseRegionHandler
  • org.apache.hadoop.hbase.regionserver.handler.TestOpenRegionHandler
  • org.apache.hadoop.hbase.regionserver.LocalIndexSplitter
  • org.apache.hadoop.hbase.regionserver.wal.TestWALReplay
  • org.apache.hadoop.hbase.regionserver.wal.TestWALReplayWithIndexWritesAndCompressedWAL
  • org.apache.hadoop.hbase.regionserver.wal.WALReplayWithIndexWritesAndCompressedWALIT
  • org.apache.hadoop.hbase.security.token.TestTokenAuthentication$TokenServer
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