Package org.apache.hadoop.hdfs.server.common

Examples of org.apache.hadoop.hdfs.server.common.StorageInfo

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      NNStorage dstImage = Mockito.mock(NNStorage.class);
      Mockito.doReturn(Lists.newArrayList(new File("/wont-be-written")))
        .when(dstImage).getFiles(
            Mockito.<NameNodeDirType>anyObject(), Mockito.anyString());
     
      Mockito.doReturn(new StorageInfo(1, 1, "X", 1).toColonSeparatedString())
        .when(dstImage).toColonSeparatedString();

      try {
        TransferFsImage.downloadImageToStorage(fsName, 0, dstImage, false);
        fail("Storage info was not verified");
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   */
  public void testRollback() throws Exception {
    File[] baseDirs;
    UpgradeUtilities.initialize();
   
    StorageInfo storageInfo = null;
    for (int numDirs = 1; numDirs <= 2; numDirs++) {
      conf = new HdfsConfiguration();
      conf.setInt(DFSConfigKeys.DFS_DATANODE_SCAN_PERIOD_HOURS_KEY, -1);     
      conf = UpgradeUtilities.initializeStorageStateConf(numDirs, conf);
      String[] nameNodeDirs = conf.getStrings(DFSConfigKeys.DFS_NAMENODE_NAME_DIR_KEY);
      String[] dataNodeDirs = conf.getStrings(DFSConfigKeys.DFS_DATANODE_DATA_DIR_KEY);
     
      log("Normal NameNode rollback", numDirs);
      UpgradeUtilities.createNameNodeStorageDirs(nameNodeDirs, "current");
      UpgradeUtilities.createNameNodeStorageDirs(nameNodeDirs, "previous");
      cluster = new MiniDFSCluster.Builder(conf).numDataNodes(0)
                                                .format(false)
                                                .manageDataDfsDirs(false)
                                                .manageNameDfsDirs(false)
                                                .startupOption(StartupOption.ROLLBACK)
                                                .build();
      checkResult(NAME_NODE, nameNodeDirs);
      cluster.shutdown();
      UpgradeUtilities.createEmptyDirs(nameNodeDirs);
     
      log("Normal DataNode rollback", numDirs);
      UpgradeUtilities.createNameNodeStorageDirs(nameNodeDirs, "current");
      UpgradeUtilities.createNameNodeStorageDirs(nameNodeDirs, "previous");
      cluster = new MiniDFSCluster.Builder(conf).numDataNodes(0)
                                                .format(false)
                                                .manageDataDfsDirs(false)
                                                .manageNameDfsDirs(false)
                                                .startupOption(StartupOption.ROLLBACK)
                                                .build();
      UpgradeUtilities.createDataNodeStorageDirs(dataNodeDirs, "current");
      UpgradeUtilities.createDataNodeStorageDirs(dataNodeDirs, "previous");
      cluster.startDataNodes(conf, 1, false, StartupOption.ROLLBACK, null);
      checkResult(DATA_NODE, dataNodeDirs);
      cluster.shutdown();
      UpgradeUtilities.createEmptyDirs(nameNodeDirs);
      UpgradeUtilities.createEmptyDirs(dataNodeDirs);

      log("NameNode rollback without existing previous dir", numDirs);
      UpgradeUtilities.createNameNodeStorageDirs(nameNodeDirs, "current");
      startNameNodeShouldFail(StartupOption.ROLLBACK,
          "None of the storage directories contain previous fs state");
      UpgradeUtilities.createEmptyDirs(nameNodeDirs);
     
      log("DataNode rollback without existing previous dir", numDirs);
      UpgradeUtilities.createNameNodeStorageDirs(nameNodeDirs, "current");
      cluster = new MiniDFSCluster.Builder(conf).numDataNodes(0)
                                                .format(false)
                                                .manageDataDfsDirs(false)
                                                .manageNameDfsDirs(false)
                                                .startupOption(StartupOption.UPGRADE)
                                                .build();
      UpgradeUtilities.createDataNodeStorageDirs(dataNodeDirs, "current");
      cluster.startDataNodes(conf, 1, false, StartupOption.ROLLBACK, null);
      cluster.shutdown();
      UpgradeUtilities.createEmptyDirs(nameNodeDirs);
      UpgradeUtilities.createEmptyDirs(dataNodeDirs);

      log("DataNode rollback with future stored layout version in previous", numDirs);
      UpgradeUtilities.createNameNodeStorageDirs(nameNodeDirs, "current");
      UpgradeUtilities.createNameNodeStorageDirs(nameNodeDirs, "previous");
      cluster = new MiniDFSCluster.Builder(conf).numDataNodes(0)
                                                .format(false)
                                                .manageDataDfsDirs(false)
                                                .manageNameDfsDirs(false)
                                                .startupOption(StartupOption.ROLLBACK)
                                                .build();
      UpgradeUtilities.createDataNodeStorageDirs(dataNodeDirs, "current");
      baseDirs = UpgradeUtilities.createDataNodeStorageDirs(dataNodeDirs, "previous");
      storageInfo = new StorageInfo(Integer.MIN_VALUE,
          UpgradeUtilities.getCurrentNamespaceID(cluster),
          UpgradeUtilities.getCurrentClusterID(cluster),
          UpgradeUtilities.getCurrentFsscTime(cluster));
     
      UpgradeUtilities.createDataNodeVersionFile(baseDirs, storageInfo,
          UpgradeUtilities.getCurrentBlockPoolID(cluster));
     
      startBlockPoolShouldFail(StartupOption.ROLLBACK,
          cluster.getNamesystem().getBlockPoolId());
      cluster.shutdown();
      UpgradeUtilities.createEmptyDirs(nameNodeDirs);
      UpgradeUtilities.createEmptyDirs(dataNodeDirs);
     
      log("DataNode rollback with newer fsscTime in previous", numDirs);
      UpgradeUtilities.createNameNodeStorageDirs(nameNodeDirs, "current");
      UpgradeUtilities.createNameNodeStorageDirs(nameNodeDirs, "previous");
      cluster = new MiniDFSCluster.Builder(conf).numDataNodes(0)
                                                .format(false)
                                                .manageDataDfsDirs(false)
                                                .manageNameDfsDirs(false)
                                                .startupOption(StartupOption.ROLLBACK)
                                                .build();
     
      UpgradeUtilities.createDataNodeStorageDirs(dataNodeDirs, "current");
      baseDirs = UpgradeUtilities.createDataNodeStorageDirs(dataNodeDirs, "previous");
      storageInfo = new StorageInfo(UpgradeUtilities.getCurrentLayoutVersion(),
            UpgradeUtilities.getCurrentNamespaceID(cluster),
            UpgradeUtilities.getCurrentClusterID(cluster), Long.MAX_VALUE);
     
      UpgradeUtilities.createDataNodeVersionFile(baseDirs, storageInfo,
          UpgradeUtilities.getCurrentBlockPoolID(cluster));
     
      startBlockPoolShouldFail(StartupOption.ROLLBACK,
          cluster.getNamesystem().getBlockPoolId());
      cluster.shutdown();
      UpgradeUtilities.createEmptyDirs(nameNodeDirs);
      UpgradeUtilities.createEmptyDirs(dataNodeDirs);

      log("NameNode rollback with no edits file", numDirs);
      UpgradeUtilities.createNameNodeStorageDirs(nameNodeDirs, "current");
      baseDirs = UpgradeUtilities.createNameNodeStorageDirs(nameNodeDirs, "previous");
      deleteMatchingFiles(baseDirs, "edits.*");
      startNameNodeShouldFail(StartupOption.ROLLBACK,
          "but there are no logs to load");
      UpgradeUtilities.createEmptyDirs(nameNodeDirs);
     
      log("NameNode rollback with no image file", numDirs);
      UpgradeUtilities.createNameNodeStorageDirs(nameNodeDirs, "current");
      baseDirs = UpgradeUtilities.createNameNodeStorageDirs(nameNodeDirs, "previous");
      deleteMatchingFiles(baseDirs, "fsimage_.*");
      startNameNodeShouldFail(StartupOption.ROLLBACK,
          "No valid image files found");
      UpgradeUtilities.createEmptyDirs(nameNodeDirs);
     
      log("NameNode rollback with corrupt version file", numDirs);
      UpgradeUtilities.createNameNodeStorageDirs(nameNodeDirs, "current");
      baseDirs = UpgradeUtilities.createNameNodeStorageDirs(nameNodeDirs, "previous");
      for (File f : baseDirs) {
        UpgradeUtilities.corruptFile(
            new File(f,"VERSION"),
            "layoutVersion".getBytes(Charsets.UTF_8),
            "xxxxxxxxxxxxx".getBytes(Charsets.UTF_8));
      }
      startNameNodeShouldFail(StartupOption.ROLLBACK,
          "file VERSION has layoutVersion missing");

      UpgradeUtilities.createEmptyDirs(nameNodeDirs);
     
      log("NameNode rollback with old layout version in previous", numDirs);
      UpgradeUtilities.createNameNodeStorageDirs(nameNodeDirs, "current");
      baseDirs = UpgradeUtilities.createNameNodeStorageDirs(nameNodeDirs, "previous");
      storageInfo = new StorageInfo(1,
          UpgradeUtilities.getCurrentNamespaceID(null),
          UpgradeUtilities.getCurrentClusterID(null),
          UpgradeUtilities.getCurrentFsscTime(null));
     
      UpgradeUtilities.createNameNodeVersionFile(conf, baseDirs,
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   * a number of valid and invalid conditions.
   */
  @Test
  public void testUpgrade() throws Exception {
    File[] baseDirs;
    StorageInfo storageInfo = null;
    for (int numDirs = 1; numDirs <= 2; numDirs++) {
      conf = new HdfsConfiguration();
      conf = UpgradeUtilities.initializeStorageStateConf(numDirs, conf);
      String[] nameNodeDirs = conf.getStrings(DFSConfigKeys.DFS_NAMENODE_NAME_DIR_KEY);
      String[] dataNodeDirs = conf.getStrings(DFSConfigKeys.DFS_DATANODE_DATA_DIR_KEY);
     
      log("Normal NameNode upgrade", numDirs);
      UpgradeUtilities.createNameNodeStorageDirs(nameNodeDirs, "current");
      cluster = createCluster();
      checkNameNode(nameNodeDirs, EXPECTED_TXID);
      if (numDirs > 1)
        TestParallelImageWrite.checkImages(cluster.getNamesystem(), numDirs);
      cluster.shutdown();
      UpgradeUtilities.createEmptyDirs(nameNodeDirs);
     
      log("Normal DataNode upgrade", numDirs);
      UpgradeUtilities.createNameNodeStorageDirs(nameNodeDirs, "current");
      cluster = createCluster();
      UpgradeUtilities.createDataNodeStorageDirs(dataNodeDirs, "current");
      cluster.startDataNodes(conf, 1, false, StartupOption.REGULAR, null);
      checkDataNode(dataNodeDirs, UpgradeUtilities.getCurrentBlockPoolID(null));
      cluster.shutdown();
      UpgradeUtilities.createEmptyDirs(nameNodeDirs);
      UpgradeUtilities.createEmptyDirs(dataNodeDirs);
     
      log("NameNode upgrade with existing previous dir", numDirs);
      UpgradeUtilities.createNameNodeStorageDirs(nameNodeDirs, "current");
      UpgradeUtilities.createNameNodeStorageDirs(nameNodeDirs, "previous");
      startNameNodeShouldFail(StartupOption.UPGRADE);
      UpgradeUtilities.createEmptyDirs(nameNodeDirs);
     
      log("DataNode upgrade with existing previous dir", numDirs);
      UpgradeUtilities.createNameNodeStorageDirs(nameNodeDirs, "current");
      cluster = createCluster();
      UpgradeUtilities.createDataNodeStorageDirs(dataNodeDirs, "current");
      UpgradeUtilities.createDataNodeStorageDirs(dataNodeDirs, "previous");
      cluster.startDataNodes(conf, 1, false, StartupOption.REGULAR, null);
      checkDataNode(dataNodeDirs, UpgradeUtilities.getCurrentBlockPoolID(null));
      cluster.shutdown();
      UpgradeUtilities.createEmptyDirs(nameNodeDirs);
      UpgradeUtilities.createEmptyDirs(dataNodeDirs);

      log("DataNode upgrade with future stored layout version in current", numDirs);
      UpgradeUtilities.createNameNodeStorageDirs(nameNodeDirs, "current");
      cluster = createCluster();
      baseDirs = UpgradeUtilities.createDataNodeStorageDirs(dataNodeDirs, "current");
      storageInfo = new StorageInfo(Integer.MIN_VALUE,
          UpgradeUtilities.getCurrentNamespaceID(cluster),
          UpgradeUtilities.getCurrentClusterID(cluster),
          UpgradeUtilities.getCurrentFsscTime(cluster));
     
      UpgradeUtilities.createDataNodeVersionFile(baseDirs, storageInfo,
          UpgradeUtilities.getCurrentBlockPoolID(cluster));
     
      startBlockPoolShouldFail(StartupOption.REGULAR, UpgradeUtilities
          .getCurrentBlockPoolID(null));
      cluster.shutdown();
      UpgradeUtilities.createEmptyDirs(nameNodeDirs);
      UpgradeUtilities.createEmptyDirs(dataNodeDirs);
     
      log("DataNode upgrade with newer fsscTime in current", numDirs);
      UpgradeUtilities.createNameNodeStorageDirs(nameNodeDirs, "current");
      cluster = createCluster();
      baseDirs = UpgradeUtilities.createDataNodeStorageDirs(dataNodeDirs, "current");
      storageInfo = new StorageInfo(UpgradeUtilities.getCurrentLayoutVersion(),
          UpgradeUtilities.getCurrentNamespaceID(cluster),
          UpgradeUtilities.getCurrentClusterID(cluster), Long.MAX_VALUE);
         
      UpgradeUtilities.createDataNodeVersionFile(baseDirs, storageInfo,
          UpgradeUtilities.getCurrentBlockPoolID(cluster));
      // Ensure corresponding block pool failed to initialized
      startBlockPoolShouldFail(StartupOption.REGULAR, UpgradeUtilities
          .getCurrentBlockPoolID(null));
      cluster.shutdown();
      UpgradeUtilities.createEmptyDirs(nameNodeDirs);
      UpgradeUtilities.createEmptyDirs(dataNodeDirs);

      log("NameNode upgrade with no edits file", numDirs);
      UpgradeUtilities.createNameNodeStorageDirs(nameNodeDirs, "current");
      deleteStorageFilesWithPrefix(nameNodeDirs, "edits_");
      startNameNodeShouldFail(StartupOption.UPGRADE);
      UpgradeUtilities.createEmptyDirs(nameNodeDirs);
     
      log("NameNode upgrade with no image file", numDirs);
      UpgradeUtilities.createNameNodeStorageDirs(nameNodeDirs, "current");
      deleteStorageFilesWithPrefix(nameNodeDirs, "fsimage_");
      startNameNodeShouldFail(StartupOption.UPGRADE);
      UpgradeUtilities.createEmptyDirs(nameNodeDirs);
     
      log("NameNode upgrade with corrupt version file", numDirs);
      baseDirs = UpgradeUtilities.createNameNodeStorageDirs(nameNodeDirs, "current");
      for (File f : baseDirs) {
        UpgradeUtilities.corruptFile(
            new File(f,"VERSION"),
            "layoutVersion".getBytes(Charsets.UTF_8),
            "xxxxxxxxxxxxx".getBytes(Charsets.UTF_8));
      }
      startNameNodeShouldFail(StartupOption.UPGRADE);
      UpgradeUtilities.createEmptyDirs(nameNodeDirs);
     
      log("NameNode upgrade with old layout version in current", numDirs);
      baseDirs = UpgradeUtilities.createNameNodeStorageDirs(nameNodeDirs, "current");
      storageInfo = new StorageInfo(Storage.LAST_UPGRADABLE_LAYOUT_VERSION + 1,
          UpgradeUtilities.getCurrentNamespaceID(null),
          UpgradeUtilities.getCurrentClusterID(null),
          UpgradeUtilities.getCurrentFsscTime(null));
     
      UpgradeUtilities.createNameNodeVersionFile(conf, baseDirs, storageInfo,
          UpgradeUtilities.getCurrentBlockPoolID(cluster));
     
      startNameNodeShouldFail(StartupOption.UPGRADE);
      UpgradeUtilities.createEmptyDirs(nameNodeDirs);
     
      log("NameNode upgrade with future layout version in current", numDirs);
      baseDirs = UpgradeUtilities.createNameNodeStorageDirs(nameNodeDirs, "current");
      storageInfo = new StorageInfo(Integer.MIN_VALUE,
          UpgradeUtilities.getCurrentNamespaceID(null),
          UpgradeUtilities.getCurrentClusterID(null),
          UpgradeUtilities.getCurrentFsscTime(null));
     
      UpgradeUtilities.createNameNodeVersionFile(conf, baseDirs, storageInfo,
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      NamenodeProtocols rpcServer = cluster.getNameNodeRpc();

      // register a datanode
      String nodeName = DN_IP_ADDR + ":" + DN_XFER_PORT;
      long nnCTime = cluster.getNameNodeRpc().versionRequest().getCTime();
      StorageInfo mockStorageInfo = mock(StorageInfo.class);
      doReturn(nnCTime).when(mockStorageInfo).getCTime();
      doReturn(HdfsConstants.LAYOUT_VERSION).when(mockStorageInfo)
          .getLayoutVersion();
      doReturn("fake-storage-id").when(mockStorageInfo).getClusterID();
      DatanodeRegistration dnReg = new DatanodeRegistration(nodeName);
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  DatanodeRegistration createBPRegistration(NamespaceInfo nsInfo) {
    DatanodeRegistration bpRegistration = createUnknownBPRegistration();
    String blockPoolId = nsInfo.getBlockPoolID();
   
    bpRegistration.setStorageID(getStorageId());
    StorageInfo storageInfo = storage.getBPStorage(blockPoolId);
    if (storageInfo == null) {
      // it's null in the case of SimulatedDataSet
      bpRegistration.storageInfo.layoutVersion = HdfsConstants.LAYOUT_VERSION;
      bpRegistration.setStorageInfo(nsInfo);
    } else {
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        throw new IOException("Startup option not set.");
      }
      final String bpid = nsInfo.getBlockPoolID();
      //read storage info, lock data dirs and transition fs state if necessary
      storage.recoverTransitionRead(this, bpid, nsInfo, dataDirs, startOpt);
      final StorageInfo bpStorage = storage.getBPStorage(bpid);
      LOG.info("Setting up storage: nsid=" + bpStorage.getNamespaceID()
          + ";bpid=" + bpid + ";lv=" + storage.getLayoutVersion()
          + ";nsInfo=" + nsInfo);
    }

    synchronized(this)  {
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      NNStorage dstImage = Mockito.mock(NNStorage.class);
      Mockito.doReturn(Lists.newArrayList(new File("/wont-be-written")))
        .when(dstImage).getFiles(
            Mockito.<NameNodeDirType>anyObject(), Mockito.anyString());
     
      Mockito.doReturn(new StorageInfo(1, 1, "X", 1).toColonSeparatedString())
        .when(dstImage).toColonSeparatedString();

      try {
        TransferFsImage.downloadImageToStorage(fsName, 0, dstImage, false);
        fail("Storage info was not verified");
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  /**
   * Create a DatanodeRegistration for a specific block pool.
   * @param nsInfo the namespace info from the first part of the NN handshake
   */
  DatanodeRegistration createBPRegistration(NamespaceInfo nsInfo) {
    StorageInfo storageInfo = storage.getBPStorage(nsInfo.getBlockPoolID());
    if (storageInfo == null) {
      // it's null in the case of SimulatedDataSet
      storageInfo = new StorageInfo(
          DataNodeLayoutVersion.CURRENT_LAYOUT_VERSION,
          nsInfo.getNamespaceID(), nsInfo.clusterID, nsInfo.getCTime(),
          NodeType.DATA_NODE);
    }

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        throw new IOException("Startup option not set.");
      }
      final String bpid = nsInfo.getBlockPoolID();
      //read storage info, lock data dirs and transition fs state if necessary
      storage.recoverTransitionRead(this, bpid, nsInfo, dataDirs, startOpt);
      final StorageInfo bpStorage = storage.getBPStorage(bpid);
      LOG.info("Setting up storage: nsid=" + bpStorage.getNamespaceID()
          + ";bpid=" + bpid + ";lv=" + storage.getLayoutVersion()
          + ";nsInfo=" + nsInfo + ";dnuuid=" + storage.getDatanodeUuid());
    }

    // If this is a newly formatted DataNode then assign a new DatanodeUuid.
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        DFSConfigKeys.DFS_DATANODE_IPC_DEFAULT_PORT);
    return new DatanodeDescriptor(dnId, rackLocation);
  }
 
  public static DatanodeRegistration getLocalDatanodeRegistration() {
    return new DatanodeRegistration(getLocalDatanodeID(), new StorageInfo(
        NodeType.DATA_NODE), new ExportedBlockKeys(), VersionInfo.getVersion());
  }
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