Wallaroo SDK Essentials Guide: Model Uploads and Registrations: Hugging Face
How to upload and use Hugging Face ML Models with Wallaroo
Table of Contents
Model Naming Requirements
Model names map onto Kubernetes objects, and must be DNS compliant. The strings for model names must be lower case ASCII alpha-numeric characters or dash (-) only. . and _ are not allowed.
Wallaroo supports Hugging Face models by containerizing the model and running as an image.
| Parameter | Description |
|---|---|
| Web Site | https://huggingface.co/models |
| Supported Libraries |
|
| Frameworks | The following Hugging Face pipelines are supported by Wallaroo.
|
During the model upload process, the Wallaroo instance will attempt to convert the model to a Native Wallaroo Runtime. If unsuccessful, a Wallaroo Containerized Runtime for the model is generated instead. See the model deployment section for details on how to configure pipeline resources based on the model’s runtime.
Hugging Face Schemas
Input and output schemas for each Hugging Face pipeline are defined below. Note that adding additional inputs not specified below will raise errors, except for the following:
Framework.HUGGING_FACE_IMAGE_TO_TEXTFramework.HUGGING_FACE_TEXT_CLASSIFICATIONFramework.HUGGING_FACE_SUMMARIZATIONFramework.HUGGING_FACE_TRANSLATION
Additional inputs added to these Hugging Face pipelines will be added as key/pair value arguments to the model’s generate method. If the argument is not required, then the model will default to the values coded in the original Hugging Face model’s source code.
See the Hugging Face Pipeline documentation for more details on each pipeline and framework.
| Wallaroo Framework | Reference |
|---|---|
Framework.HUGGING_FACE_FEATURE_EXTRACTION |
Schemas:
input_schema = pa.schema([
pa.field('inputs', pa.string())
])
output_schema = pa.schema([
pa.field('output', pa.list_(
pa.list_(
pa.float64(),
list_size=128
),
))
])
| Wallaroo Framework | Reference |
|---|---|
Framework.HUGGING_FACE_IMAGE_CLASSIFICATION |
Schemas:
input_schema = pa.schema([
pa.field('inputs', pa.list_(
pa.list_(
pa.list_(
pa.int64(),
list_size=3
),
list_size=100
),
list_size=100
)),
pa.field('top_k', pa.int64()),
])
output_schema = pa.schema([
pa.field('score', pa.list_(pa.float64(), list_size=2)),
pa.field('label', pa.list_(pa.string(), list_size=2)),
])
| Wallaroo Framework | Reference |
|---|---|
Framework.HUGGING_FACE_IMAGE_SEGMENTATION |
Schemas:
input_schema = pa.schema([
pa.field('inputs',
pa.list_(
pa.list_(
pa.list_(
pa.int64(),
list_size=3
),
list_size=100
),
list_size=100
)),
pa.field('threshold', pa.float64()),
pa.field('mask_threshold', pa.float64()),
pa.field('overlap_mask_area_threshold', pa.float64()),
])
output_schema = pa.schema([
pa.field('score', pa.list_(pa.float64())),
pa.field('label', pa.list_(pa.string())),
pa.field('mask',
pa.list_(
pa.list_(
pa.list_(
pa.int64(),
list_size=100
),
list_size=100
),
)),
])
| Wallaroo Framework | Reference |
|---|---|
Framework.HUGGING_FACE_IMAGE_TO_TEXT |
Any parameter that is not part of the required inputs list will be forwarded to the model as a key/pair value to the underlying models generate method. If the additional input is not supported by the model, an error will be returned.
Schemas:
input_schema = pa.schema([
pa.field('inputs', pa.list_( #required
pa.list_(
pa.list_(
pa.int64(),
list_size=3
),
list_size=100
),
list_size=100
)),
# pa.field('max_new_tokens', pa.int64()), # optional
])
output_schema = pa.schema([
pa.field('generated_text', pa.list_(pa.string())),
])
| Wallaroo Framework | Reference |
|---|---|
Framework.HUGGING_FACE_OBJECT_DETECTION |
Schemas:
input_schema = pa.schema([
pa.field('inputs',
pa.list_(
pa.list_(
pa.list_(
pa.int64(),
list_size=3
),
list_size=100
),
list_size=100
)),
pa.field('threshold', pa.float64()),
])
output_schema = pa.schema([
pa.field('score', pa.list_(pa.float64())),
pa.field('label', pa.list_(pa.string())),
pa.field('box',
pa.list_( # dynamic output, i.e. dynamic number of boxes per input image, each sublist contains the 4 box coordinates
pa.list_(
pa.int64(),
list_size=4
),
),
),
])
| Wallaroo Framework | Reference |
|---|---|
Framework.HUGGING_FACE_QUESTION_ANSWERING |
Schemas:
input_schema = pa.schema([
pa.field('question', pa.string()),
pa.field('context', pa.string()),
pa.field('top_k', pa.int64()),
pa.field('doc_stride', pa.int64()),
pa.field('max_answer_len', pa.int64()),
pa.field('max_seq_len', pa.int64()),
pa.field('max_question_len', pa.int64()),
pa.field('handle_impossible_answer', pa.bool_()),
pa.field('align_to_words', pa.bool_()),
])
output_schema = pa.schema([
pa.field('score', pa.float64()),
pa.field('start', pa.int64()),
pa.field('end', pa.int64()),
pa.field('answer', pa.string()),
])
| Wallaroo Framework | Reference |
|---|---|
Framework.HUGGING_FACE_STABLE_DIFFUSION_TEXT_2_IMG |
Schemas:
input_schema = pa.schema([
pa.field('prompt', pa.string()),
pa.field('height', pa.int64()),
pa.field('width', pa.int64()),
pa.field('num_inference_steps', pa.int64()), # optional
pa.field('guidance_scale', pa.float64()), # optional
pa.field('negative_prompt', pa.string()), # optional
pa.field('num_images_per_prompt', pa.string()), # optional
pa.field('eta', pa.float64()) # optional
])
output_schema = pa.schema([
pa.field('images', pa.list_(
pa.list_(
pa.list_(
pa.int64(),
list_size=3
),
list_size=128
),
list_size=128
)),
])
| Wallaroo Framework | Reference |
|---|---|
Framework.HUGGING_FACE_SUMMARIZATION |
Any parameter that is not part of the required inputs list will be forwarded to the model as a key/pair value to the underlying models generate method. If the additional input is not supported by the model, an error will be returned.
Schemas:
input_schema = pa.schema([
pa.field('inputs', pa.string()),
pa.field('return_text', pa.bool_()),
pa.field('return_tensors', pa.bool_()),
pa.field('clean_up_tokenization_spaces', pa.bool_()),
# pa.field('extra_field', pa.int64()), # every extra field you specify will be forwarded as a key/value pair
])
output_schema = pa.schema([
pa.field('summary_text', pa.string()),
])
| Wallaroo Framework | Reference |
|---|---|
Framework.HUGGING_FACE_TEXT_CLASSIFICATION |
Schemas
input_schema = pa.schema([
pa.field('inputs', pa.string()),
pa.field('top_k', pa.int64()),
pa.field('function_to_apply', pa.string()),
])
output_schema = pa.schema([
pa.field('label', pa.list_(pa.string(), list_size=2)), # list with a number of items same as top_k, list_size can be skipped but may lead in worse performance
pa.field('score', pa.list_(pa.float64(), list_size=2)), # list with a number of items same as top_k, list_size can be skipped but may lead in worse performance
])
| Wallaroo Framework | Reference |
|---|---|
Framework.HUGGING_FACE_TRANSLATION |
Any parameter that is not part of the required inputs list will be forwarded to the model as a key/pair value to the underlying models generate method. If the additional input is not supported by the model, an error will be returned.
Schemas:
input_schema = pa.schema([
pa.field('inputs', pa.string()), # required
pa.field('return_tensors', pa.bool_()), # optional
pa.field('return_text', pa.bool_()), # optional
pa.field('clean_up_tokenization_spaces', pa.bool_()), # optional
pa.field('src_lang', pa.string()), # optional
pa.field('tgt_lang', pa.string()), # optional
# pa.field('extra_field', pa.int64()), # every extra field you specify will be forwarded as a key/value pair
])
output_schema = pa.schema([
pa.field('translation_text', pa.string()),
])
| Wallaroo Framework | Reference |
|---|---|
Framework.HUGGING_FACE_ZERO_SHOT_CLASSIFICATION |
Schemas:
input_schema = pa.schema([
pa.field('inputs', pa.string()), # required
pa.field('candidate_labels', pa.list_(pa.string(), list_size=2)), # required
pa.field('hypothesis_template', pa.string()), # optional
pa.field('multi_label', pa.bool_()), # optional
])
output_schema = pa.schema([
pa.field('sequence', pa.string()),
pa.field('scores', pa.list_(pa.float64(), list_size=2)), # same as number of candidate labels, list_size can be skipped by may result in slightly worse performance
pa.field('labels', pa.list_(pa.string(), list_size=2)), # same as number of candidate labels, list_size can be skipped by may result in slightly worse performance
])
| Wallaroo Framework | Reference |
|---|---|
Framework.HUGGING_FACE_ZERO_SHOT_IMAGE_CLASSIFICATION |
Schemas:
input_schema = pa.schema([
pa.field('inputs', # required
pa.list_(
pa.list_(
pa.list_(
pa.int64(),
list_size=3
),
list_size=100
),
list_size=100
)),
pa.field('candidate_labels', pa.list_(pa.string(), list_size=2)), # required
pa.field('hypothesis_template', pa.string()), # optional
])
output_schema = pa.schema([
pa.field('score', pa.list_(pa.float64(), list_size=2)), # same as number of candidate labels
pa.field('label', pa.list_(pa.string(), list_size=2)), # same as number of candidate labels
])
| Wallaroo Framework | Reference |
|---|---|
Framework.HUGGING_FACE_ZERO_SHOT_OBJECT_DETECTION |
Schemas:
input_schema = pa.schema([
pa.field('images',
pa.list_(
pa.list_(
pa.list_(
pa.int64(),
list_size=3
),
list_size=640
),
list_size=480
)),
pa.field('candidate_labels', pa.list_(pa.string(), list_size=3)),
pa.field('threshold', pa.float64()),
# pa.field('top_k', pa.int64()), # we want the model to return exactly the number of predictions, we shouldn't specify this
])
output_schema = pa.schema([
pa.field('score', pa.list_(pa.float64())), # variable output, depending on detected objects
pa.field('label', pa.list_(pa.string())), # variable output, depending on detected objects
pa.field('box',
pa.list_( # dynamic output, i.e. dynamic number of boxes per input image, each sublist contains the 4 box coordinates
pa.list_(
pa.int64(),
list_size=4
),
),
),
])
| Wallaroo Framework | Reference |
|---|---|
Framework.HUGGING_FACE_SENTIMENT_ANALYSIS | Hugging Face Sentiment Analysis |
| Wallaroo Framework | Reference |
|---|---|
Framework.HUGGING_FACE_TEXT_GENERATION |
Any parameter that is not part of the required inputs list will be forwarded to the model as a key/pair value to the underlying models generate method. If the additional input is not supported by the model, an error will be returned.
input_schema = pa.schema([
pa.field('inputs', pa.string()),
pa.field('return_tensors', pa.bool_()), # optional
pa.field('return_text', pa.bool_()), # optional
pa.field('return_full_text', pa.bool_()), # optional
pa.field('clean_up_tokenization_spaces', pa.bool_()), # optional
pa.field('prefix', pa.string()), # optional
pa.field('handle_long_generation', pa.string()), # optional
# pa.field('extra_field', pa.int64()), # every extra field you specify will be forwarded as a key/value pair
])
output_schema = pa.schema([
pa.field('generated_text', pa.list_(pa.string(), list_size=1))
])
| Wallaroo Framework | Reference |
|---|---|
Framework.HUGGING_FACE_AUTOMATIC_SPEECH_RECOGNITION |
Sample input and output schema.
input_schema = pa.schema([
pa.field('inputs', pa.list_(pa.float32())), # required: the audio stored in numpy arrays of shape (num_samples,) and data type `float32`
pa.field('return_timestamps', pa.string()) # optional: return start & end times for each predicted chunk
])
output_schema = pa.schema([
pa.field('text', pa.string()), # required: the output text corresponding to the audio input
pa.field('chunks', pa.list_(pa.struct([('text', pa.string()), ('timestamp', pa.list_(pa.float32()))]))), # required (if `return_timestamps` is set), start & end times for each predicted chunk
])
Uploading Hugging Face Models
Hugging Face models are uploaded to Wallaroo through the Wallaroo Client upload_model method.
Upload Hugging Face Model Parameters
The following parameters are required for Hugging Face models. Note that while some fields are considered as optional for the upload_model method, they are required for proper uploading of a Hugging Face model to Wallaroo.
| Parameter | Type | Description |
|---|---|---|
name | string (Required) | The name of the model. Model names are unique per workspace. Models that are uploaded with the same name are assigned as a new version of the model. |
path | string (Required) | The path to the model file being uploaded. |
framework | string (Required) | Set as the framework - see the list above for all supported Hugging Face frameworks. |
input_schema | pyarrow.lib.Schema (Required) | The input schema in Apache Arrow schema format. |
output_schema | pyarrow.lib.Schema (Required) | The output schema in Apache Arrow schema format. |
convert_wait | bool (Optional) (Default: True) |
|
arch | wallaroo.engine_config.Architecture | The architecture the model is deployed to. If a model is intended for deployment to an ARM architecture, it must be specified during this step. Values include: X86 (Default): x86 based architectures. ARM: ARM based architectures. |
Once the upload process starts, the model is containerized by the Wallaroo instance. This process may take up to 10 minutes.
Upload Hugging Face Model Return
upload_model returns a wallaroo.model_version.ModelVersion object with the following fields.
| Field | Type | Description |
|---|---|---|
name | String | The name of the model. |
version | String | The model version as a unique UUID. |
file_name | String | The file name of the model as stored in Wallaroo. |
SHA | String | The hash value of the model file. |
Status | String | The status of the model. |
image_path | String | The image used to deploy the model in the Wallaroo engine. |
last_update_time | DateTime | When the model was last updated. |
Upload Hugging Face Model Example
The following example is of uploading a Hugging Face Zero Shot Classification ML Model to a Wallaroo instance.
input_schema = pa.schema([
pa.field('inputs', pa.string()), # required
pa.field('candidate_labels', pa.list_(pa.string(), list_size=2)), # required
pa.field('hypothesis_template', pa.string()), # optional
pa.field('multi_label', pa.bool_()), # optional
])
output_schema = pa.schema([
pa.field('sequence', pa.string()),
pa.field('scores', pa.list_(pa.float64(), list_size=2)), # same as number of candidate labels, list_size can be skipped by may result in slightly worse performance
pa.field('labels', pa.list_(pa.string(), list_size=2)), # same as number of candidate labels, list_size can be skipped by may result in slightly worse performance
])
model = wl.upload_model("hf-zero-shot-classification",
"./models/model-auto-conversion_hugging-face_dummy-pipelines_zero-shot-classification-pipeline.zip",
framework=Framework.HUGGING_FACE_ZERO_SHOT_CLASSIFICATION,
input_schema=input_schema,
output_schema=output_schema,
convert_wait=True)
Waiting for model loading - this will take up to 10.0min.
Model is pending loading to a container runtime..
Model is attempting loading to a container runtime................................................successful
Ready