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

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

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    // Upgrade is allowed only if there are
    // no previous fs states in any of the directories
    for (Iterator<StorageDirectory> it = storage.dirIterator(); it.hasNext();) {
      StorageDirectory sd = it.next();
      if (sd.getPreviousDir().exists())
        throw new InconsistentFSStateException(sd.getRoot(),
            "previous fs state should not exist during upgrade. "
            + "Finalize or rollback first.");
    }

    // load the latest image
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                                      getLayoutVersion())) {
      // In 0.22, we have the checksum stored in the VERSION file.
      String md5 = storage.getDeprecatedProperty(
          NNStorage.DEPRECATED_MESSAGE_DIGEST_PROPERTY);
      if (md5 == null) {
        throw new InconsistentFSStateException(sdForProperties.getRoot(),
            "Message digest property " +
            NNStorage.DEPRECATED_MESSAGE_DIGEST_PROPERTY +
            " not set for storage directory " + sdForProperties.getRoot());
      }
      loadFSImage(imageFile.getFile(), new MD5Hash(md5), target, recovery);
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          }
        } catch(SecurityException se) {
          isAccessible = false;
        }
        if(!isAccessible)
          throw new InconsistentFSStateException(sd.getRoot(),
              "cannot access checkpoint directory.");
        StorageState curState;
        try {
          curState = sd.analyzeStorage(HdfsConstants.StartupOption.REGULAR);
          // sd is locked but not opened
          switch(curState) {
          case NON_EXISTENT:
            // fail if any of the configured checkpoint dirs are inaccessible
            throw new InconsistentFSStateException(sd.getRoot(),
                  "checkpoint directory does not exist or is not accessible.");
          case NOT_FORMATTED:
            break;  // it's ok since initially there is no current and VERSION
          case NORMAL:
            break;
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        curState = sd.analyzeStorage(startOpt);
        // sd is locked but not opened
        switch(curState) {
        case NON_EXISTENT:
          // name-node fails if any of the configured storage dirs are missing
          throw new InconsistentFSStateException(sd.getRoot(),
                                                 "storage directory does not exist or is not accessible.");
        case NOT_FORMATTED:
          break;
        case NORMAL:
          break;
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    // no previous fs states in any of the directories
    for (Iterator<StorageDirectory> it =
                           dirIterator(); it.hasNext();) {
      StorageDirectory sd = it.next();
      if (sd.getPreviousDir().exists())
        throw new InconsistentFSStateException(sd.getRoot(),
                                               "previous fs state should not exist during upgrade. "
                                               + "Finalize or rollback first.");
    }

    // load the latest image
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        sDUS == null? false : Boolean.parseBoolean(sDUS),
        sDUV == null? getLayoutVersion() : Integer.parseInt(sDUV));
    String sMd5 = props.getProperty(MESSAGE_DIGEST_PROPERTY);
    if (layoutVersion <= -26) {
      if (sMd5 == null) {
        throw new InconsistentFSStateException(sd.getRoot(),
            "file " + STORAGE_FILE_VERSION + " does not have MD5 image digest.");
      }
      this.setImageDigest(new MD5Hash(sMd5));
    } else if (sMd5 != null) {
      throw new InconsistentFSStateException(sd.getRoot(),
          "file " + STORAGE_FILE_VERSION +
          " has image MD5 digest when version is " + layoutVersion);
    }
    this.checkpointTime = readCheckpointTime(sd);
  }
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  public boolean isConversionNeeded(StorageDirectory sd) throws IOException {
    File oldImageDir = new File(sd.getRoot(), "image");
    if (!oldImageDir.exists()) {
      if(sd.getVersionFile().exists())
        throw new InconsistentFSStateException(sd.getRoot(),
            oldImageDir + " does not exist.");
      return false;
    }
    // check the layout version inside the image file
    File oldF = new File(oldImageDir, "fsimage");
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        curState = sd.analyzeStorage(startOpt, storage);
        // sd is locked but not opened
        switch(curState) {
        case NON_EXISTENT:
          // name-node fails if any of the configured storage dirs are missing
          throw new InconsistentFSStateException(sd.getRoot(),
                      "storage directory does not exist or is not accessible.");
        case NOT_FORMATTED:
          break;
        case NORMAL:
          break;
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    // Upgrade or rolling upgrade is allowed only if there are
    // no previous fs states in any of the directories
    for (Iterator<StorageDirectory> it = storage.dirIterator(false); it.hasNext();) {
      StorageDirectory sd = it.next();
      if (sd.getPreviousDir().exists())
        throw new InconsistentFSStateException(sd.getRoot(),
            "previous fs state should not exist during upgrade. "
            + "Finalize or rollback first.");
    }
  }
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        LayoutVersion.Feature.FSIMAGE_CHECKSUM, getLayoutVersion())) {
      // In 0.22, we have the checksum stored in the VERSION file.
      String md5 = storage.getDeprecatedProperty(
          NNStorage.DEPRECATED_MESSAGE_DIGEST_PROPERTY);
      if (md5 == null) {
        throw new InconsistentFSStateException(sdForProperties.getRoot(),
            "Message digest property " +
            NNStorage.DEPRECATED_MESSAGE_DIGEST_PROPERTY +
            " not set for storage directory " + sdForProperties.getRoot());
      }
      loadFSImage(imageFile.getFile(), new MD5Hash(md5), target, recovery);
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Related Classes of org.apache.hadoop.hdfs.server.common.InconsistentFSStateException

  • org.apache.hadoop.hdfs.server.datanode.BlockPoolSliceStorage
  • org.apache.hadoop.hdfs.server.datanode.DataStorage
  • org.apache.hadoop.hdfs.server.datanode.DataStorage$RollbackThread
  • org.apache.hadoop.hdfs.server.datanode.NameSpaceSliceStorage
  • org.apache.hadoop.hdfs.server.namenode.BackupImage
  • org.apache.hadoop.hdfs.server.namenode.BackupStorage
  • org.apache.hadoop.hdfs.server.namenode.FSImage
  • org.apache.hadoop.hdfs.server.namenode.FSImageFormat$Loader
  • org.apache.hadoop.hdfs.server.namenode.NNStorage
  • org.apache.hadoop.hdfs.server.namenode.SecondaryNameNode$CheckpointStorage
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