为什么我在Azure容器实例中进行ML模型部署仍然失败? [英] Why does my ML model deployment in Azure Container Instance still fail?
问题描述
我正在使用Azure机器学习服务将ML模型部署为Web服务。
我
另外,运行 service.get_logs()
给我
WebserviceException:收到来自模型管理
服务的错误响应:响应代码:404
可能是罪魁祸首?
如果ACI部署失败,一种解决方案正在尝试分配 less 个资源,例如
aciconfig = AciWebservice.deploy_configuration (cpu_cores = 1,
memory_gb = 8,
标签= {数据:文本,方法: NB},
description ='预测某事')
虽然抛出的错误消息不是特别有用,但实际上在文档:
当区域位于如果负载很大,则
部署实例时可能会失败。为了减轻这种部署失败,请尝试
部署具有较低资源设置的实例[...]
文档还指出这是不同区域中可用的CPU / RAM资源的最大值(在编写本文时,要求使用 memory_gb = 32
进行的部署可能会在所有区域中失败,因为
在需要更少的资源后,部署应该成功
创建服务
正在运行....................................... ......
SucceededACI服务创建操作已完成,操作
成功运行正常
I am using Azure Machine Learning Service to deploy a ML model as web service.
I registered a model
and now would like to deploy it as an ACI web service as in the guide.
To do so I define
from azureml.core.webservice import Webservice, AciWebservice
from azureml.core.image import ContainerImage
aciconfig = AciWebservice.deploy_configuration(cpu_cores=4,
memory_gb=32,
tags={"data": "text", "method" : "NB"},
description='Predict something')
and
image_config = ContainerImage.image_configuration(execution_script="score.py",
docker_file="Dockerfile",
runtime="python",
conda_file="myenv.yml")
and create an image with
image = ContainerImage.create(name = "scorer-image",
models = [model],
image_config = image_config,
workspace = ws
)
Image creation succeeds with
Creating image Image creation operation finished for image scorer-image:5, operation "Succeeded"
Also, troubleshooting the image by running it locally on an Azure VM with
sudo docker run -p 8002:5001 myscorer0588419434.azurecr.io/scorer-image:5
allows me to run (locally) queries successfully against http://localhost:8002/score
.
However, deployment with
service_name = 'scorer-svc'
service = Webservice.deploy_from_image(deployment_config = aciconfig,
image = image,
name = service_name,
workspace = ws)
fails with
Creating service
Running.
FailedACI service creation operation finished, operation "Failed"
Service creation polling reached terminal state, current service state: Transitioning
Service creation polling reached terminal state, unexpected response received. Transitioning
I tried setting in the aciconfig
more generous memory_gb
, but to no avail: the deployment stays in a transitioning state (like in the image below if monitored on the Azure portal):
Also, running service.get_logs()
gives me
WebserviceException: Received bad response from Model Management Service: Response Code: 404
What could possibly be the culprit?
If ACI deployment fails, one solution is trying to allocate less resources, e.g.
aciconfig = AciWebservice.deploy_configuration(cpu_cores=1,
memory_gb=8,
tags={"data": "text", "method" : "NB"},
description='Predict something')
While the error messages thrown are not particularly informative, this is actually clearly stated in the documentation:
When a region is under heavy load, you may experience a failure when deploying instances. To mitigate such a deployment failure, try deploying instances with lower resource settings [...]
The documentation also states which are the maximum values of the CPU/RAM resources available in the different regions (at the time of writing, requiring a deployment with memory_gb=32
would likely fail in all regions because of insufficient resources).
Upon requiring less resources, deployment should succeed with
Creating service
Running......................................................
SucceededACI service creation operation finished, operation
"Succeeded" Healthy
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