Textract GetDocumentAnalysis JobStatus is always In Progress

Hello all,

I am using Textract async StartDocumentAnalysis and GetDocumentAnalysis for detecting signatures. However, when I test the code with a PDF document the job status of GetDocumentAnalysis is always shown as In Progress.

Attached is my code for StartDocumentAnalysis and GetDocumentAnalysis:

def process_file(input_file):
    try:
        response = client.start_document_analysis(
            DocumentLocation={
                'S3Object': {
                    'Bucket': BUCKET_NAME,
                    'Name': input_file
                }
            },
            FeatureTypes=['FORMS'],
            NotificationChannel={
                'SNSTopicArn': 'arn:aws:sns:us-east-2:634358717878:Detect_Sign',
                'RoleArn': 'arn:aws:iam::634358717878:role/textract'
            },
        )
        job_id = response["JobId"]
        logger.info("Started analyzing the document for signatures %s on %s.", job_id, input_file)
    except ClientError:
        logger.exception("Couldn't analyze the document for signatures in %s.", input_file)
        raise
    else:
        return job_id


def parse_json_file(job_id_value):
    document_analysis_response = client.get_document_analysis(
        JobId=job_id_value,
        MaxResults=100

    )
    job_status = document_analysis_response['JobStatus']
    while job_status != "SUCCEEDED":
        if job_status == "SUCCEEDED":
            signature_array = []
            signature_detected = 0  # signature blanks with signatures
            signature = 0  # total number of signatures in a document
            blocks = document_analysis_response['Blocks']
            for block in blocks:
                if block['BlockType'] == 'SIGNATURE':
                    signature += 1
                    if block['Confidence'] != 0.0:
                        signature_detected += 1
                        signature_array.append(block)
            logger.info("Analyzing document completed. %s JobId and %s JobStatus ", job_id_value, job_status)
            logger.info("Total Number of signatures blanks: %s ", signature)
            logger.info("Number of signatures detected: %s ", signature_detected)
            break
        else:
            logger.info("Could not detect signatures. Job status is %s ", job_status)
        job_status = document_analysis_response['JobStatus']