1 Star 0 Fork 1

majortom / djl-serving

forked from Azcarlo / djl-serving 
加入 Gitee
与超过 1200万 开发者一起发现、参与优秀开源项目,私有仓库也完全免费 :)
免费加入
克隆/下载
贡献代码
同步代码
取消
提示: 由于 Git 不支持空文件夾,创建文件夹后会生成空的 .keep 文件
Loading...
README
Apache-2.0

DJL Serving

Overview

DJL Serving is a high performance universal stand-alone model serving solution powered by DJL. It takes a deep learning model, several models, or workflows and makes them available through an HTTP endpoint. It can serve the following model types out of the box:

  • PyTorch TorchScript model
  • TensorFlow SavedModel bundle
  • Apache MXNet model
  • ONNX model (CPU)
  • TensorRT model
  • Python script model

You can install extra extensions to enable the following models:

  • PaddlePaddle model
  • TFLite model
  • Neo DLR (TVM) model
  • XGBoost model
  • Sentencepiece model
  • fastText/BlazingText model

Key features

  • Performance - DJL serving running multithreading inference in a single JVM. Our benchmark shows DJL serving has higher throughput than most C++ model servers on the market
  • Ease of use - DJL serving can serve most models out of the box
  • Easy to extend - DJL serving plugins make it easy to add custom extensions
  • Auto-scale - DJL serving automatically scales up/down worker threads based on the load
  • Dynamic batching - DJL serving supports dynamic batching to increase throughput
  • Model versioning - DJL allows users to load different versions of a model on a single endpoint
  • Multi-engine support - DJL allows users to serve models from different engines at the same time

Installation

For macOS

brew install djl-serving

# Start djl-serving as service:
brew services start djl-serving

# Stop djl-serving service
brew services stop djl-serving

For Ubuntu

curl -O https://publish.djl.ai/djl-serving/djl-serving_0.18.0-1_all.deb
sudo dpkg -i djl-serving_0.18.0-1_all.deb

For Windows

We are considering to create a chocolatey package for Windows. For the time being, you can download djl-serving zip file from here.

curl -O https://publish.djl.ai/djl-serving/serving-0.18.0.zip
unzip serving-0.18.0.zip
# start djl-serving
serving-0.18.0\bin\serving.bat

Docker

You can also use docker to run DJL Serving:

docker run -itd -p 8080:8080 deepjavalibrary/djl-serving

Usage

Sample Usage

Use the following command to start model server locally:

djl-serving

The model server will be listening on port 8080. You can also load a model for serving on start up:

djl-serving -m "https://resources.djl.ai/demo/mxnet/resnet18_v1.zip"

Open another terminal, and type the following command to test the inference REST API:

curl -O https://resources.djl.ai/images/kitten.jpg
curl -X POST http://localhost:8080/predictions/resnet18_v1 -T kitten.jpg

or:

curl -X POST http://localhost:8080/predictions/resnet18_v1 -F "data=@kitten.jpg"

[
  {
    "className": "n02123045 tabby, tabby cat",
    "probability": 0.4838452935218811
  },
  {
    "className": "n02123159 tiger cat",
    "probability": 0.20599420368671417
  },
  {
    "className": "n02124075 Egyptian cat",
    "probability": 0.18810515105724335
  },
  {
    "className": "n02123394 Persian cat",
    "probability": 0.06411745399236679
  },
  {
    "className": "n02127052 lynx, catamount",
    "probability": 0.010215568356215954
  }
]

Examples for loading models

# Load models from the DJL model zoo on startup
djl-serving -m "djl://ai.djl.pytorch/resnet"

# Load version v1 of a PyTorch model on GPU(0) from the local file system
djl-serving -m "resnet:v1:PyTorch:0=file:$HOME/models/pytorch/resnet18/"

# Load a TensorFlow model from TFHub
djl-serving -m "resnet=https://tfhub.dev/tensorflow/resnet_50/classification/1"

Examples for customizing data processing

# Use the default data processing for a well-known application
djl-serving -m "file:/resnet?application=CV/image_classification"

# Specify a custom data processing with a Translator
djl-serving -m "file:/resnet?translatorFactory=MyFactory"

## Pass parameters for data processing
djl-serving -m "djl://ai.djl.pytorch/resnet?applySoftmax=false"

Using DJL Extensions

# Load a model from an AWS S3 Bucket
djl-serving -m "s3://djl-ai/demo/resnet/resnet18.zip"

# Load a model from HDFS
djl-serving -m "hdfs://localhost:50070/models/pytorch/resnet18/"

# Use a HuggingFace tokenizer
djl-serving -m "file:/resnet?transaltorFactory=ai.djl.huggingface.BertQATranslator"

More examples

More command line options

djl-serving --help
usage: djl-serving [OPTIONS]
 -f,--config-file <CONFIG-FILE>    Path to the configuration properties file.
 -h,--help                         Print this help.
 -m,--models <MODELS>              Models to be loaded at startup.
 -s,--model-store <MODELS-STORE>   Model store location where models can be loaded.
 -w,--workflows <WORKFLOWS>   Workflows to be loaded at startup.

See configuration for more details about defining models, model-store, and workflows.

REST API

DJL Serving uses a RESTful API for both inference and management calls.

When DJL Serving starts up, it has two web services:

  • Inference API - Used by clients to query the server and run models
  • Management API - Used to add, remove, and scale models on the server

By default, DJL Serving listens on port 8080 and is only accessible from localhost. Please see DJL Serving Configuration for how to enable access from a remote host.

Architecture

DJL serving is built on top of Deep Java Library. You can visit the DJL github repository to learn more.

It is also possible to leverage only the worker thread pool using the separate WorkLoadManager module. The separate WorkLoadManager can be used to take advantage of DJL serving's model batching and threading and integrate it into a custom Java service.

Architecture Diagram

Plugin management

DJL Serving supports plugins, user can implement their own plugins to enrich DJL Serving features. See DJL Plugin Management for how to install plugins to DJL Serving.

Logging

you can set the logging level on the command-line adding a parameter for the JVM

-Dai.djl.logging.level={FATAL|ERROR|WARN|INFO|DEBUG|TRACE}
Apache License Version 2.0, January 2004 http://www.apache.org/licenses/ TERMS AND CONDITIONS FOR USE, REPRODUCTION, AND DISTRIBUTION 1. Definitions. "License" shall mean the terms and conditions for use, reproduction, and distribution as defined by Sections 1 through 9 of this document. "Licensor" shall mean the copyright owner or entity authorized by the copyright owner that is granting the License. "Legal Entity" shall mean the union of the acting entity and all other entities that control, are controlled by, or are under common control with that entity. For the purposes of this definition, "control" means (i) the power, direct or indirect, to cause the direction or management of such entity, whether by contract or otherwise, or (ii) ownership of fifty percent (50%) or more of the outstanding shares, or (iii) beneficial ownership of such entity. "You" (or "Your") shall mean an individual or Legal Entity exercising permissions granted by this License. "Source" form shall mean the preferred form for making modifications, including but not limited to software source code, documentation source, and configuration files. "Object" form shall mean any form resulting from mechanical transformation or translation of a Source form, including but not limited to compiled object code, generated documentation, and conversions to other media types. "Work" shall mean the work of authorship, whether in Source or Object form, made available under the License, as indicated by a copyright notice that is included in or attached to the work (an example is provided in the Appendix below). "Derivative Works" shall mean any work, whether in Source or Object form, that is based on (or derived from) the Work and for which the editorial revisions, annotations, elaborations, or other modifications represent, as a whole, an original work of authorship. For the purposes of this License, Derivative Works shall not include works that remain separable from, or merely link (or bind by name) to the interfaces of, the Work and Derivative Works thereof. "Contribution" shall mean any work of authorship, including the original version of the Work and any modifications or additions to that Work or Derivative Works thereof, that is intentionally submitted to Licensor for inclusion in the Work by the copyright owner or by an individual or Legal Entity authorized to submit on behalf of the copyright owner. For the purposes of this definition, "submitted" means any form of electronic, verbal, or written communication sent to the Licensor or its representatives, including but not limited to communication on electronic mailing lists, source code control systems, and issue tracking systems that are managed by, or on behalf of, the Licensor for the purpose of discussing and improving the Work, but excluding communication that is conspicuously marked or otherwise designated in writing by the copyright owner as "Not a Contribution." "Contributor" shall mean Licensor and any individual or Legal Entity on behalf of whom a Contribution has been received by Licensor and subsequently incorporated within the Work. 2. Grant of Copyright License. Subject to the terms and conditions of this License, each Contributor hereby grants to You a perpetual, worldwide, non-exclusive, no-charge, royalty-free, irrevocable copyright license to reproduce, prepare Derivative Works of, publicly display, publicly perform, sublicense, and distribute the Work and such Derivative Works in Source or Object form. 3. Grant of Patent License. Subject to the terms and conditions of this License, each Contributor hereby grants to You a perpetual, worldwide, non-exclusive, no-charge, royalty-free, irrevocable (except as stated in this section) patent license to make, have made, use, offer to sell, sell, import, and otherwise transfer the Work, where such license applies only to those patent claims licensable by such Contributor that are necessarily infringed by their Contribution(s) alone or by combination of their Contribution(s) with the Work to which such Contribution(s) was submitted. If You institute patent litigation against any entity (including a cross-claim or counterclaim in a lawsuit) alleging that the Work or a Contribution incorporated within the Work constitutes direct or contributory patent infringement, then any patent licenses granted to You under this License for that Work shall terminate as of the date such litigation is filed. 4. Redistribution. You may reproduce and distribute copies of the Work or Derivative Works thereof in any medium, with or without modifications, and in Source or Object form, provided that You meet the following conditions: (a) You must give any other recipients of the Work or Derivative Works a copy of this License; and (b) You must cause any modified files to carry prominent notices stating that You changed the files; and (c) You must retain, in the Source form of any Derivative Works that You distribute, all copyright, patent, trademark, and attribution notices from the Source form of the Work, excluding those notices that do not pertain to any part of the Derivative Works; and (d) If the Work includes a "NOTICE" text file as part of its distribution, then any Derivative Works that You distribute must include a readable copy of the attribution notices contained within such NOTICE file, excluding those notices that do not pertain to any part of the Derivative Works, in at least one of the following places: within a NOTICE text file distributed as part of the Derivative Works; within the Source form or documentation, if provided along with the Derivative Works; or, within a display generated by the Derivative Works, if and wherever such third-party notices normally appear. The contents of the NOTICE file are for informational purposes only and do not modify the License. You may add Your own attribution notices within Derivative Works that You distribute, alongside or as an addendum to the NOTICE text from the Work, provided that such additional attribution notices cannot be construed as modifying the License. You may add Your own copyright statement to Your modifications and may provide additional or different license terms and conditions for use, reproduction, or distribution of Your modifications, or for any such Derivative Works as a whole, provided Your use, reproduction, and distribution of the Work otherwise complies with the conditions stated in this License. 5. Submission of Contributions. Unless You explicitly state otherwise, any Contribution intentionally submitted for inclusion in the Work by You to the Licensor shall be under the terms and conditions of this License, without any additional terms or conditions. Notwithstanding the above, nothing herein shall supersede or modify the terms of any separate license agreement you may have executed with Licensor regarding such Contributions. 6. Trademarks. This License does not grant permission to use the trade names, trademarks, service marks, or product names of the Licensor, except as required for reasonable and customary use in describing the origin of the Work and reproducing the content of the NOTICE file. 7. Disclaimer of Warranty. Unless required by applicable law or agreed to in writing, Licensor provides the Work (and each Contributor provides its Contributions) on an "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied, including, without limitation, any warranties or conditions of TITLE, NON-INFRINGEMENT, MERCHANTABILITY, or FITNESS FOR A PARTICULAR PURPOSE. You are solely responsible for determining the appropriateness of using or redistributing the Work and assume any risks associated with Your exercise of permissions under this License. 8. Limitation of Liability. In no event and under no legal theory, whether in tort (including negligence), contract, or otherwise, unless required by applicable law (such as deliberate and grossly negligent acts) or agreed to in writing, shall any Contributor be liable to You for damages, including any direct, indirect, special, incidental, or consequential damages of any character arising as a result of this License or out of the use or inability to use the Work (including but not limited to damages for loss of goodwill, work stoppage, computer failure or malfunction, or any and all other commercial damages or losses), even if such Contributor has been advised of the possibility of such damages. 9. Accepting Warranty or Additional Liability. While redistributing the Work or Derivative Works thereof, You may choose to offer, and charge a fee for, acceptance of support, warranty, indemnity, or other liability obligations and/or rights consistent with this License. However, in accepting such obligations, You may act only on Your own behalf and on Your sole responsibility, not on behalf of any other Contributor, and only if You agree to indemnify, defend, and hold each Contributor harmless for any liability incurred by, or claims asserted against, such Contributor by reason of your accepting any such warranty or additional liability.

简介

High performance universal stand-alone model serving solution powered by DJL 展开 收起
Java
Apache-2.0
取消

发行版

暂无发行版

贡献者

全部

近期动态

加载更多
不能加载更多了
Java
1
https://gitee.com/majortomLT/djl-serving.git
git@gitee.com:majortomLT/djl-serving.git
majortomLT
djl-serving
djl-serving
master

搜索帮助