Increase max input length for HuggingFace model in SageMaker deployment

AIML, Others 1 Minute

I deployed HuggingFace zephyr-7b-beta model to SageMaker by using the default deploy.py script. When trying to invoke the model endpoint, I received the error “ValueError: Error raised by inference endpoint: An error occurred (ModelError) when calling the InvokeEndpoint operation: Received client error (422) from primary with message “{“error”:”Input validation error: inputs must have less than 1024 tokens.”

It turns out that the default max input length is 1024 tokens. To increase it, I need to pass the MAX_INPUT_LENGTH parameter in the env setting. Here is the full code

import json
import sagemaker
import boto3
from sagemaker.huggingface import HuggingFaceModel, get_huggingface_llm_image_uri
try:
role = sagemaker.get_execution_role()
except ValueError:
iam = boto3.client('iam')
role = iam.get_role(RoleName='sagemaker_execution_role')['Role']['Arn']
# Hub Model configuration. https://huggingface.co/models
hub = {
'HF_MODEL_ID':'HuggingFaceH4/zephyr-7b-beta',
'SM_NUM_GPUS': json.dumps(1),
'MAX_TOTAL_TOKENS': json.dumps(4096),
'MAX_INPUT_LENGTH': json.dumps(3000),
}
# create Hugging Face Model Class
huggingface_model = HuggingFaceModel(
image_uri=get_huggingface_llm_image_uri("huggingface",version="1.1.0"),
env=hub,
role=role,
)
# deploy model to SageMaker Inference
predictor = huggingface_model.deploy(
initial_instance_count=1,
instance_type="ml.g5.2xlarge",
container_startup_health_check_timeout=300,
)
# send request
predictor.predict({
"inputs": "<|system|>\nYou are a pirate chatbot who always responds with Arr!</s>\n<|user|>\nThere's a llama on my lawn, how can I get rid of him?</s>\n<|assistant|>\n",
})
view raw deploy_zephyr_7b_beta_in_sagemaker.py hosted with ❤ by GitHub

Reference: https://huggingface.co/docs/text-generation-inference/basic_tutorials/launcher#maxinputlength

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Published by Jackie Chen

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