apache/hadoop · error · HadoopIllegalArgumentException

Invalid buffer found, not allowing null

Error message

Invalid buffer found, not allowing null

What it means

Error "Invalid buffer found, not allowing null" thrown in apache/hadoop.

Source

Thrown at hadoop-common-project/hadoop-common/src/main/java/org/apache/hadoop/io/erasurecode/rawcoder/ByteBufferDecodingState.java:132

      validInputs++;
    }

    if (validInputs < decoder.getNumDataUnits()) {
      throw new HadoopIllegalArgumentException(
          "No enough valid inputs are provided, not recoverable");
    }
  }

  /**
   * Check and ensure the buffers are of the desired length and type, direct
   * buffers or not.
   * @param buffers the buffers to check
   */
  void checkOutputBuffers(ByteBuffer[] buffers) {
    for (ByteBuffer buffer : buffers) {
      if (buffer == null) {
        throw new HadoopIllegalArgumentException(
            "Invalid buffer found, not allowing null");
      }

      if (buffer.remaining() != decodeLength) {
        throw new HadoopIllegalArgumentException(
            "Invalid buffer, not of length " + decodeLength);
      }
      if (buffer.isDirect() != usingDirectBuffer) {
        throw new HadoopIllegalArgumentException(
            "Invalid buffer, isDirect should be " + usingDirectBuffer);
      }
    }
  }
}

View on GitHub (pinned to 2add963021)

Solutions

1. Do not pass null entries in the inputs array except for erased positions that are properly marked in erasedIndexes.
2. Validate the inputs array for nulls before calling decode.

When it happens

Trigger: Thrown at hadoop-common-project/hadoop-common/src/main/java/org/apache/hadoop/io/erasurecode/rawcoder/ByteBufferDecodingState.java:132 when the library encounters an invalid state.

Common situations: Occurs when a null buffer is passed into a decoding state. Validate all input/output buffers are non-null before performing the decode step.

AI-assisted analysis of apache/hadoop@2add963021 (2026-08-22). Data as JSON: /api/errors/b1ee64178ff100b5. Report an issue: GitHub.