apache/hadoop · error · SAXException

Invalid XML

Error message

Invalid XML

What it means

Error "Invalid XML" thrown in apache/hadoop.

Source

Thrown at hadoop-tools/hadoop-azure/src/main/java/org/apache/hadoop/fs/azurebfs/contracts/services/BlobListXmlParser.java:134

  /**
   * <pre>Receive notification of the end of an element.</pre>
   * Whenever an XML-tag is closed, the parent-tag and current-tag shall be
   * checked and correct property shall be set in the active {@link #currentBlobEntry}.
   * If the current-tag is "Blob", it means that there are no more properties to
   * be set in the  the active {@link #currentBlobEntry}, and it shall be the
   * {@link #listResultSchema}.
   */
  @Override
  public void endElement(final String uri,
      final String localName,
      final String qName)
      throws SAXException {
    String currentNode = elements.pop();

    // Check if the ending tag is correct to the starting tag in the stack.
    if (!currentNode.equals(localName)) {
      throw new SAXException(AbfsHttpConstants.XML_TAG_INVALID_XML);
    }

    String parentNode = EMPTY_STRING;
    if (elements.size() > 0) {
      parentNode = elements.peek();
    }

    String value = bld.toString();
    if (value.isEmpty()) {
      value = null;
    }

    /*
     * If the closing tag is Blob, there are no more properties to be set in
     * currentBlobEntry.
     */
    if (AbfsHttpConstants.XML_TAG_BLOB.equals(currentNode)) {
      listResultSchema.addBlobListEntry(currentBlobEntry);

View on GitHub (pinned to 2add963021)

Solutions

1. Verify the storage account returned a well-formed XML list response; enable DEBUG logging for AbfsBlobClient to capture the raw payload.
2. Check for proxy or firewall appliances altering the response body.
3. Retry the request; if persistent, capture the response and report it to the storage service.

When it happens

Trigger: Listing blobs over the Blob endpoint returns malformed or truncated XML, often under network interference or service-side errors.

Common situations: See trigger scenarios.

AI-assisted analysis of apache/hadoop@2add963021 (2026-08-22). Data as JSON: /api/errors/9edb678e061582db. Report an issue: GitHub.