apache/hadoop · error · IOException

Can't get key {} from key providerof type: {}.

Error message

Can't get key {} from key providerof type: {}.

What it means

Error "Can't get key {} from key providerof type: {}." thrown in apache/hadoop.

Source

Thrown at hadoop-common-project/hadoop-common/src/main/java/org/apache/hadoop/conf/Configuration.java:2482

   */
  public char[] getPasswordFromCredentialProviders(String name)
      throws IOException {
    char[] pass = null;
    try {
      List<CredentialProvider> providers =
          CredentialProviderFactory.getProviders(this);

      if (providers != null) {
        for (CredentialProvider provider : providers) {
          try {
            CredentialEntry entry = getCredentialEntry(provider, name);
            if (entry != null) {
              pass = entry.getCredential();
              break;
            }
          }
          catch (IOException ioe) {
            throw new IOException("Can't get key " + name + " from key provider" +
            		"of type: " + provider.getClass().getName() + ".", ioe);
          }
        }
      }
    }
    catch (IOException ioe) {
      throw new IOException("Configuration problem with provider path.", ioe);
    }

    return pass;
  }

  /**
   * Fallback to clear text passwords in configuration.
   * @param name the property name.
   * @return clear text password or null
   */
  protected char[] getPasswordFromConfig(String name) {

View on GitHub (pinned to 2add963021)

Solutions

1. Check the KeyProvider configuration and that the named key exists in the provider backing the credential.

Example fix

List keys with 'hadoop key list' and create the missing key.

When it happens

Trigger: Raised at runtime when the documented precondition or configuration requirement for this operation is violated.

Common situations: Misconfigured or missing property, invalid user input, or calling the API before its prerequisites are met.

AI-assisted analysis of apache/hadoop@2add963021 (2026-08-22). Data as JSON: /api/errors/cbe7a8aae8a1403b. Report an issue: GitHub.