Examples of org.apache.hadoop.fs.InvalidRequestException

org.apache.hadoop.fs.InvalidRequestException
Thrown when the user makes a malformed request, for example missing required parameters or parameters that are not valid.

      throw new UnsupportedOperationException();
    }
    ShmId shmId = slotId.getShmId();
    RegisteredShm shm = segments.get(shmId);
    if (shm == null) {
      throw new InvalidRequestException("there is no shared memory segment " +
          "registered with shmId " + shmId);
    }
    Slot slot = shm.registerSlot(slotId.getSlotIdx(), blockId);
    if (isCached) {
      slot.makeAnchorable();

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      throw new UnsupportedOperationException();
    }
    ShmId shmId = slotId.getShmId();
    RegisteredShm shm = segments.get(shmId);
    if (shm == null) {
      throw new InvalidRequestException("there is no shared memory segment " +
          "registered with shmId " + shmId);
    }
    Slot slot = shm.getSlot(slotId.getSlotIdx());
    slot.makeInvalid();
    shm.unregisterSlot(slotId.getSlotIdx());

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  private static String validatePoolName(CacheDirectiveInfo directive)
      throws InvalidRequestException {
    String pool = directive.getPool();
    if (pool == null) {
      throw new InvalidRequestException("No pool specified.");
    }
    if (pool.isEmpty()) {
      throw new InvalidRequestException("Invalid empty pool name.");
    }
    return pool;
  }

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  }


  private static String validatePath(CacheDirectiveInfo directive)
      throws InvalidRequestException {
    if (directive.getPath() == null) {
      throw new InvalidRequestException("No path specified.");
    }
    String path = directive.getPath().toUri().getPath();
    if (!DFSUtil.isValidName(path)) {
      throw new InvalidRequestException("Invalid path '" + path + "'.");
    }
    return path;
  }

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  private static short validateReplication(CacheDirectiveInfo directive,
      short defaultValue) throws InvalidRequestException {
    short repl = (directive.getReplication() != null)
        ? directive.getReplication() : defaultValue;
    if (repl <= 0) {
      throw new InvalidRequestException("Invalid replication factor " + repl
          + " <= 0");
    }
    return repl;
  }

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    if (info == null || info.getExpiration() == null) {
      return maxAbsoluteExpiryTime;
    }
    Expiration expiry = info.getExpiration();
    if (expiry.getMillis() < 0l) {
      throw new InvalidRequestException("Cannot set a negative expiration: "
          + expiry.getMillis());
    }
    long relExpiryTime, absExpiryTime;
    if (expiry.isRelative()) {
      relExpiryTime = expiry.getMillis();
      absExpiryTime = now + relExpiryTime;
    } else {
      absExpiryTime = expiry.getMillis();
      relExpiryTime = absExpiryTime - now;
    }
    // Need to cap the expiry so we don't overflow a long when doing math
    if (relExpiryTime > Expiration.MAX_RELATIVE_EXPIRY_MS) {
      throw new InvalidRequestException("Expiration "
          + expiry.toString() + " is too far in the future!");
    }
    // Fail if the requested expiry is greater than the max
    if (relExpiryTime > maxRelativeExpiryTime) {
      throw new InvalidRequestException("Expiration " + expiry.toString()
          + " exceeds the max relative expiration time of "
          + maxRelativeExpiryTime + " ms.");
    }
    return absExpiryTime;
  }

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    if (pool.getLimit() == CachePoolInfo.LIMIT_UNLIMITED) {
      return;
    }
    if (pool.getBytesNeeded() + (stats.getBytesNeeded() * replication) > pool
        .getLimit()) {
      throw new InvalidRequestException("Caching path " + path + " of size "
          + stats.getBytesNeeded() / replication + " bytes at replication "
          + replication + " would exceed pool " + pool.getPoolName()
          + "'s remaining capacity of "
          + (pool.getLimit() - pool.getBytesNeeded()) + " bytes.");
    }

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   * exists.
   */
  private CacheDirective getById(long id) throws InvalidRequestException {
    // Check for invalid IDs.
    if (id <= 0) {
      throw new InvalidRequestException("Invalid negative ID.");
    }
    // Find the directive.
    CacheDirective directive = directivesById.get(id);
    if (directive == null) {
      throw new InvalidRequestException("No directive with ID " + id
          + " found.");
    }
    return directive;
  }

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   */
  private CachePool getCachePool(String poolName)
      throws InvalidRequestException {
    CachePool pool = cachePools.get(poolName);
    if (pool == null) {
      throw new InvalidRequestException("Unknown pool " + poolName);
    }
    return pool;
  }

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  void modifyDirectiveFromEditLog(CacheDirectiveInfo info)
      throws InvalidRequestException {
    // Check for invalid IDs.
    Long id = info.getId();
    if (id == null) {
      throw new InvalidRequestException("Must supply an ID.");
    }
    CacheDirective prevEntry = getById(id);
    CacheDirectiveInfo newInfo = createFromInfoAndDefaults(info, prevEntry);
    removeInternal(prevEntry);
    addInternal(new CacheDirective(newInfo), getCachePool(newInfo.getPool()));

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org.apache.hadoop.hdfs.protocol.CachePoolInfo

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org.apache.hadoop.hdfs.server.namenode.CacheManager

org.apache.hadoop.hdfs.shortcircuit.ShortCircuitShm

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