apache/hadoop · error · InvalidRequestException

No path specified.

Error message

No path specified.

What it means

Error "No path specified." thrown in apache/hadoop.

Source

Thrown at hadoop-hdfs-project/hadoop-hdfs/src/main/java/org/apache/hadoop/hdfs/server/namenode/CacheManager.java:381

    }
  }

  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;
  }

  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;
  }

  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;
  }

View on GitHub (pinned to 2add963021)

Solutions

1. Specify the path to cache with the -path option of hdfs cacheadmin -addDirective.

When it happens

Trigger: addCacheDirective without specifying a path.

Common situations: See trigger scenarios.

AI-assisted analysis of apache/hadoop@2add963021 (2026-08-22). Data as JSON: /api/errors/6cdcd8fd52b80d6d. Report an issue: GitHub.