├── .gitignore ├── LICENSE ├── README.md ├── authorizer.py ├── config.py ├── locustfile.py ├── mme ├── authorizer.py ├── config.py ├── construct_payload.py └── locustfile.py └── requirements.txt /.gitignore: -------------------------------------------------------------------------------- 1 | # Byte-compiled / optimized / DLL files 2 | __pycache__/ 3 | *.py[cod] 4 | *$py.class 5 | 6 | # C extensions 7 | *.so 8 | 9 | # Distribution / packaging 10 | .Python 11 | build/ 12 | develop-eggs/ 13 | dist/ 14 | downloads/ 15 | eggs/ 16 | .eggs/ 17 | lib/ 18 | lib64/ 19 | parts/ 20 | sdist/ 21 | var/ 22 | wheels/ 23 | pip-wheel-metadata/ 24 | share/python-wheels/ 25 | *.egg-info/ 26 | .installed.cfg 27 | *.egg 28 | MANIFEST 29 | 30 | # PyInstaller 31 | # Usually these files are written by a python script from a template 32 | # before PyInstaller builds the exe, so as to inject date/other infos into it. 33 | *.manifest 34 | *.spec 35 | 36 | # Installer logs 37 | pip-log.txt 38 | pip-delete-this-directory.txt 39 | 40 | # Unit test / coverage reports 41 | htmlcov/ 42 | .tox/ 43 | .nox/ 44 | .coverage 45 | .coverage.* 46 | .cache 47 | nosetests.xml 48 | coverage.xml 49 | *.cover 50 | *.py,cover 51 | .hypothesis/ 52 | .pytest_cache/ 53 | 54 | # Translations 55 | *.mo 56 | *.pot 57 | 58 | # Django stuff: 59 | *.log 60 | local_settings.py 61 | db.sqlite3 62 | db.sqlite3-journal 63 | 64 | # Flask stuff: 65 | instance/ 66 | .webassets-cache 67 | 68 | # Scrapy stuff: 69 | .scrapy 70 | 71 | # Sphinx documentation 72 | docs/_build/ 73 | 74 | # PyBuilder 75 | target/ 76 | 77 | # Jupyter Notebook 78 | .ipynb_checkpoints 79 | 80 | # IPython 81 | profile_default/ 82 | ipython_config.py 83 | 84 | # pyenv 85 | .python-version 86 | 87 | # pipenv 88 | # According to pypa/pipenv#598, it is recommended to include Pipfile.lock in version control. 89 | # However, in case of collaboration, if having platform-specific dependencies or dependencies 90 | # having no cross-platform support, pipenv may install dependencies that don't work, or not 91 | # install all needed dependencies. 92 | #Pipfile.lock 93 | 94 | # PEP 582; used by e.g. github.com/David-OConnor/pyflow 95 | __pypackages__/ 96 | 97 | # Celery stuff 98 | celerybeat-schedule 99 | celerybeat.pid 100 | 101 | # SageMath parsed files 102 | *.sage.py 103 | 104 | # Environments 105 | .env 106 | .venv 107 | env/ 108 | venv/ 109 | ENV/ 110 | env.bak/ 111 | venv.bak/ 112 | 113 | # Spyder project settings 114 | .spyderproject 115 | .spyproject 116 | 117 | # Rope project settings 118 | .ropeproject 119 | 120 | # mkdocs documentation 121 | /site 122 | 123 | # mypy 124 | .mypy_cache/ 125 | .dmypy.json 126 | dmypy.json 127 | 128 | # Pyre type checker 129 | .pyre/ 130 | 131 | .idea/ 132 | .git/ 133 | -------------------------------------------------------------------------------- /LICENSE: -------------------------------------------------------------------------------- 1 | Apache License 2 | Version 2.0, January 2004 3 | http://www.apache.org/licenses/ 4 | 5 | TERMS AND CONDITIONS FOR USE, REPRODUCTION, AND DISTRIBUTION 6 | 7 | 1. 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Create a Python virtual or conda environment or use native Python on your desktop 7 | 2. Using your terminal 8 | `$ pip install locust` or `$ pip install -r requirements.txt` 9 | 3. Set your parameters in `config.py` 10 | 4. Start the locust server: 11 | `$ locust --host=http://localhost:8080 --locustfile=locustfile.py` 12 | 5. Access Locust UI running at this location: http://localhost:8089/ 13 | 14 | 15 | > This document encompasses all the instructions to calibrate a SageMaker model endpoint using Locust. Also, it includes pointers to help pick the optimal strategy for auto scaling. 16 | 17 | ### **Locust Resources:** 18 | 19 | * [Locust Quick Start](https://docs.locust.io/en/stable/quickstart.html) 20 | * [Writing a Locust file](https://docs.locust.io/en/stable/writing-a-locustfile.html) 21 | 22 | 23 | In the Locust UI, we need to set 2 main parameters: 24 | 25 | * *The number of users =* the number of users testing your application. Each user opens a TCP connection to your application and tests it. 26 | * *Hatch or spawn rate*: For each second, how many users will be added to the current pool of users until the total amount of users is reached. At each hatch, Locust calls the `on_start` function if you have one defined in the `locustfile.py`. 27 | 28 | *Example:* 29 | 30 | * Number of users: 1000 31 | * Hatch rate: 10 32 | * For every second, 10 users will be added to current pool of users starting from 0. So in 100 seconds, you will have 1000 users. Locust tries to distribute the load equally for each user. 33 | 34 | Basically, requests per second (RPS) or throughput indicates the number of transactions per second your application can handle. And response time or latency is the amount of time from the moment that a user sends a request until the time that your application indicates that the request has completed. 35 | 36 | The overall throughput tends to decrease as you increase the response time for an average transaction. The reason is, after sending the 1st request, locust needs to wait (blocking) until the request is completed or processed before sending the 2nd request. 37 | 38 | In the Locust UI, we can track the following parameters: 39 | 40 | * Request — Total number of requests made so far 41 | * Fails — Number of requests that have failed 42 | * Median — Response speed for 50 percentile in ms 43 | * 90%ile — Response speed for 90 percentile in ms 44 | * Average — Average response speed in ms 45 | * Min — Minimum response speed in ms 46 | * Max — Maximum response speed in ms 47 | * Average bytes — Average response size in bytes 48 | * Current RPS — Current requests per second 49 | * Current Failure/s — Total number of failures per second 50 | 51 | 52 | In Locust, each simulated user does the following: 53 | 54 | 1. Pick one of the tasks from your locust file 55 | 2. Run the task (execute that task function) 56 | 3. Pick a random wait time between `min_wait` and `max_wait` (specified in your `locustfile.py`) 57 | 4. Wait that amount of time 58 | 5. Repeat from 1 59 | 60 | 61 | 62 | 63 | -------------------------------------------------------------------------------- /authorizer.py: -------------------------------------------------------------------------------- 1 | import config as conf 2 | import datetime 3 | import hashlib 4 | import logging 5 | import hmac 6 | 7 | logging.basicConfig(level=logging.INFO) 8 | 9 | """ 10 | Please refer to the documentation below for more details on SageMaker endpoint access using 11 | authorization headers. 12 | https://docs.amazonaws.cn/en_us/general/latest/gr/sigv4-signed-request-examples.html 13 | """ 14 | 15 | 16 | def sign(key, msg): 17 | return hmac.new(key, msg.encode('utf-8'), hashlib.sha256).digest() 18 | 19 | 20 | def get_canonical_url(endpoint_url): 21 | canonical_uri = '/' + '/'.join(endpoint_url.split('/')[-3:]) 22 | return canonical_uri 23 | 24 | 25 | def get_date_time(): 26 | date_time = datetime.datetime.utcnow() 27 | date = date_time.strftime('%Y%m%d') 28 | time = date_time.strftime('%Y%m%dT%H%M%SZ') 29 | return date, time 30 | 31 | 32 | def construct_signature_key(key, date_stamp, region_name, service_name): 33 | signature_date = sign(('AWS4' + key).encode('utf-8'), date_stamp) 34 | signature_region = sign(signature_date, region_name) 35 | signature_service = sign(signature_region, service_name) 36 | signature_key = sign(signature_service, 'aws4_request') 37 | return signature_key 38 | 39 | 40 | def construct_canonical_headers(time): 41 | canonical_headers = f'content-type:{conf.CONTENT_TYPE}\nhost:{conf.HOST}\nx-amz-date:{time}\n' 42 | return canonical_headers 43 | 44 | 45 | def get_payload_hash(payload): 46 | payload = payload.encode('utf-8') 47 | payload_hash = hashlib.sha256(payload).hexdigest() 48 | return payload_hash 49 | 50 | 51 | def construct_canonical_request(canonical_uri, canonical_headers, payload_hash): 52 | canonical_request = f'{conf.METHOD}\n{canonical_uri}\n{conf.CANONICAL_QUERY_STRING}\n{canonical_headers}\n{conf.SIGNED_HEADERS}\n{payload_hash}' 53 | return canonical_request 54 | 55 | 56 | def get_credential_scope(date): 57 | credential_scope = f'{date}/{conf.REGION}/{conf.SERVICE}/aws4_request' 58 | return credential_scope 59 | 60 | 61 | def get_string_to_sign(time, credential_scope, canonical_request): 62 | digest = hashlib.sha256(canonical_request.encode('utf-8')).hexdigest() 63 | string_to_sign = f'{conf.ALGORITHM}\n{time}\n{credential_scope}\n{digest}' 64 | return string_to_sign 65 | 66 | 67 | def get_signing_key(date): 68 | key = construct_signature_key(conf.SECRET_KEY, date, conf.REGION, conf.SERVICE) 69 | return key 70 | 71 | 72 | def get_signature(key, string_to_sign): 73 | signature = hmac.new(key, string_to_sign.encode('utf-8'), hashlib.sha256).hexdigest() 74 | return signature 75 | 76 | 77 | def construct_authorization_headers(credential_scope, signature): 78 | authorization_headers = f'{conf.ALGORITHM} Credential={conf.ACCESS_KEY}/{credential_scope}, SignedHeaders={conf.SIGNED_HEADERS}, Signature={signature}' 79 | return authorization_headers 80 | 81 | 82 | def get_headers(time, authorization_headers): 83 | headers = {'Content-Type': conf.CONTENT_TYPE, 84 | 'X-Amz-Date': time, 85 | 'Authorization': authorization_headers} 86 | return headers 87 | 88 | 89 | def authorize(payload): 90 | # Comment out logging when running load test 91 | date, time = get_date_time() 92 | canonical_headers = construct_canonical_headers(time) 93 | logging.info(f'[CANONICAL HEADERS: {canonical_headers}]') 94 | 95 | canonical_uri = get_canonical_url(conf.SAGEMAKER_ENDPOINT_URL) 96 | payload_hash = get_payload_hash(payload) 97 | canonical_request = construct_canonical_request(canonical_uri, canonical_headers, payload_hash) 98 | logging.info(f'[CANONICAL REQ: {canonical_request}]') 99 | 100 | credential_scope = get_credential_scope(date) 101 | string_to_sign = get_string_to_sign(time, credential_scope, canonical_request) 102 | signing_key = get_signing_key(date) 103 | signature = get_signature(signing_key, string_to_sign) 104 | logging.info(f'[SIGNATURE: {signature}]') 105 | 106 | authorization_headers = construct_authorization_headers(credential_scope, signature) 107 | logging.info(f'[AUTHORIZATION HEADER: {authorization_headers}]') 108 | 109 | headers = get_headers(time, authorization_headers) 110 | logging.info(f'[HEADERS: {headers}]') 111 | return headers 112 | 113 | 114 | if __name__ == '__main__': 115 | # Execute this script alone for testing authorize function 116 | 117 | # Use below format for content type=text/csv 118 | # payload = '0.234234,0.234345,0.5634,-0.23535' 119 | # Use below format for content type=application/json 120 | payload = "{'instances': [[-1.1617474484872234,-0.7582725561441886,0.3944614964772361,0.4812270430077439]]}" 121 | authorize(payload) 122 | -------------------------------------------------------------------------------- /config.py: -------------------------------------------------------------------------------- 1 | HOST = 'runtime.sagemaker.us-east-1.amazonaws.com' 2 | REGION = 'us-east-1' 3 | # replace the url below with the sagemaker endpoint you are load testing 4 | SAGEMAKER_ENDPOINT_URL = 'https://runtime.sagemaker.us-east-1.amazonaws.com/endpoints/emr-byoc-sklearn-2021-03-28-21-08-24/invocations' 5 | # ACCESS_KEY = '' 6 | # SECRET_KEY = '' 7 | # replace the context type below as per your requirements 8 | # CONTENT_TYPE = 'text/csv' 9 | CONTENT_TYPE = 'application/json' 10 | METHOD = 'POST' 11 | SERVICE = 'sagemaker' 12 | SIGNED_HEADERS = 'content-type;host;x-amz-date' 13 | CANONICAL_QUERY_STRING = '' 14 | ALGORITHM = 'AWS4-HMAC-SHA256' 15 | -------------------------------------------------------------------------------- /locustfile.py: -------------------------------------------------------------------------------- 1 | from locust import HttpUser, task 2 | from authorizer import authorize 3 | import config as conf 4 | import json 5 | 6 | # For content type=text/csv use below line 7 | # PAYLOAD = '0.234234,0.234345,0.5634,-0.23535' 8 | 9 | # For content type=application/json use similar to below 2 lines 10 | PAYLOAD = {'instances': [[-1.1617474484872234,-0.7582725561441886,0.3944614964772361,0.4812270430077439]]} 11 | PAYLOAD = json.dumps(PAYLOAD) 12 | 13 | 14 | class WebsiteUser(HttpUser): 15 | min_wait = 1 16 | max_wait = 5 # time in ms 17 | 18 | @task 19 | def test_post(self): 20 | """ 21 | Load Test SageMaker Endpoint (POST request) 22 | """ 23 | headers = authorize(PAYLOAD) 24 | self.client.post(conf.SAGEMAKER_ENDPOINT_URL, data=PAYLOAD, headers=headers, name='Post Request') 25 | -------------------------------------------------------------------------------- /mme/authorizer.py: -------------------------------------------------------------------------------- 1 | import config as conf 2 | import datetime 3 | import hashlib 4 | import logging 5 | import hmac 6 | import json 7 | 8 | logging.basicConfig(level=logging.INFO) 9 | 10 | """ 11 | Please refer to the documentation below for more details on SageMaker endpoint access using 12 | authorization headers. 13 | https://docs.amazonaws.cn/en_us/general/latest/gr/sigv4-signed-request-examples.html 14 | """ 15 | 16 | 17 | def sign(key, msg): 18 | return hmac.new(key, msg.encode('utf-8'), hashlib.sha256).digest() 19 | 20 | 21 | def get_canonical_url(endpoint_url): 22 | canonical_uri = '/' + '/'.join(endpoint_url.split('/')[-3:]) 23 | return canonical_uri 24 | 25 | 26 | def get_date_time(): 27 | date_time = datetime.datetime.utcnow() 28 | date = date_time.strftime('%Y%m%d') 29 | time = date_time.strftime('%Y%m%dT%H%M%SZ') 30 | return date, time 31 | 32 | 33 | def construct_signature_key(key, date_stamp, region_name, service_name): 34 | signature_date = sign(('AWS4' + key).encode('utf-8'), date_stamp) 35 | signature_region = sign(signature_date, region_name) 36 | signature_service = sign(signature_region, service_name) 37 | signature_key = sign(signature_service, 'aws4_request') 38 | return signature_key 39 | 40 | 41 | def construct_canonical_headers(time): 42 | canonical_headers = f'content-type:{conf.CONTENT_TYPE}\nhost:{conf.HOST}\nx-amz-date:{time}\n' 43 | return canonical_headers 44 | 45 | 46 | def get_payload_hash(payload): 47 | payload = payload.encode('utf-8') 48 | payload_hash = hashlib.sha256(payload).hexdigest() 49 | return payload_hash 50 | 51 | 52 | def construct_canonical_request(canonical_uri, canonical_headers, payload_hash): 53 | canonical_request = f'{conf.METHOD}\n{canonical_uri}\n{conf.CANONICAL_QUERY_STRING}\n{canonical_headers}\n{conf.SIGNED_HEADERS}\n{payload_hash}' 54 | return canonical_request 55 | 56 | 57 | def get_credential_scope(date): 58 | credential_scope = f'{date}/{conf.REGION}/{conf.SERVICE}/aws4_request' 59 | return credential_scope 60 | 61 | 62 | def get_string_to_sign(time, credential_scope, canonical_request): 63 | digest = hashlib.sha256(canonical_request.encode('utf-8')).hexdigest() 64 | string_to_sign = f'{conf.ALGORITHM}\n{time}\n{credential_scope}\n{digest}' 65 | return string_to_sign 66 | 67 | 68 | def get_signing_key(date): 69 | key = construct_signature_key(conf.SECRET_KEY, date, conf.REGION, conf.SERVICE) 70 | return key 71 | 72 | 73 | def get_signature(key, string_to_sign): 74 | signature = hmac.new(key, string_to_sign.encode('utf-8'), hashlib.sha256).hexdigest() 75 | return signature 76 | 77 | 78 | def construct_authorization_headers(credential_scope, signature): 79 | authorization_headers = f'{conf.ALGORITHM} Credential={conf.ACCESS_KEY}/{credential_scope}, SignedHeaders={conf.SIGNED_HEADERS}, Signature={signature}' 80 | return authorization_headers 81 | 82 | 83 | def get_headers(time, authorization_headers, target): 84 | headers = {'Content-Type': conf.CONTENT_TYPE, 85 | 'X-Amz-Date': time, 86 | 'X-Amzn-SageMaker-Target-Model': target, 87 | 'Authorization': authorization_headers} 88 | return headers 89 | 90 | 91 | def authorize(payload, target): 92 | # print(payload) 93 | # Comment out logging when running load test 94 | date, time = get_date_time() 95 | canonical_headers = construct_canonical_headers(time) 96 | # logging.info(f'[CANONICAL HEADERS: {canonical_headers}]') 97 | 98 | canonical_uri = get_canonical_url(conf.SAGEMAKER_ENDPOINT_URL) 99 | payload_hash = get_payload_hash(payload) 100 | canonical_request = construct_canonical_request(canonical_uri, canonical_headers, payload_hash) 101 | # logging.info(f'[CANONICAL REQ: {canonical_request}]') 102 | 103 | credential_scope = get_credential_scope(date) 104 | string_to_sign = get_string_to_sign(time, credential_scope, canonical_request) 105 | signing_key = get_signing_key(date) 106 | signature = get_signature(signing_key, string_to_sign) 107 | # logging.info(f'[SIGNATURE: {signature}]') 108 | 109 | authorization_headers = construct_authorization_headers(credential_scope, signature) 110 | # logging.info(f'[AUTHORIZATION HEADER: {authorization_headers}]') 111 | 112 | headers = get_headers(time, authorization_headers, target) 113 | # logging.info(f'[HEADERS: {headers}]') 114 | return headers 115 | 116 | 117 | if __name__ == '__main__': 118 | # Execute this script alone for testing authorize function 119 | 120 | # Use below format for content type=text/csv 121 | payload = '0.234234,0.234345,0.5634,-0.23535' 122 | # Use below format for content type=application/json 123 | """ 124 | PAYLOAD = {'instances': [[2.804030096111861, 125 | -0.5078493396918523, 126 | 0.9696087678038148, 127 | -0.3296902366978934, 128 | 1.2317458148495393, 129 | 0.11934137168357777, 130 | 1.1473978828301732, 131 | -0.9193527632708587, 132 | 1.6060928595608375, 133 | 1.4077822707538348, 134 | 0.9051304120610045, 135 | -4.278295167692499, 136 | 2.513247725276389]]} 137 | payload = json.dumps(PAYLOAD) 138 | """ 139 | authorize(payload, 'model2.tar.gz') 140 | -------------------------------------------------------------------------------- /mme/config.py: -------------------------------------------------------------------------------- 1 | HOST = 'runtime.sagemaker.us-east-1.amazonaws.com' 2 | REGION = 'us-east-1' 3 | # replace the url below with the sagemaker endpoint you are load testing 4 | SAGEMAKER_ENDPOINT_URL = '' 5 | # ACCESS_KEY = '' 6 | # SECRET_KEY = '' 7 | ACCESS_KEY = '' 8 | SECRET_KEY = '' 9 | # replace the context type below as per your requirements 10 | CONTENT_TYPE = 'text/csv' 11 | # CONTENT_TYPE = 'application/json' 12 | # TARGET_MODEL = 'model1.tar.gz' 13 | METHOD = 'POST' 14 | SERVICE = 'sagemaker' 15 | SIGNED_HEADERS = 'content-type;host;x-amz-date' 16 | CANONICAL_QUERY_STRING = '' 17 | ALGORITHM = 'AWS4-HMAC-SHA256' 18 | -------------------------------------------------------------------------------- /mme/construct_payload.py: -------------------------------------------------------------------------------- 1 | headers = 'id,text,filename__v,format__v,size__v,charsize,pages__v' 2 | 3 | id_ = '31011' 4 | text = """Investigational Product Accountability Log 5 | 6 | 7 | """ 8 | filename__v = 'foo.docx' 9 | format__v = 'application/vnd.openxmlformats-officedocument.wordprocessingml.document' 10 | size__v = '16290' 11 | charsize = '768' 12 | pages__v = '1' 13 | 14 | row = ','.join([id_, repr(text), filename__v, format__v, size__v, charsize, pages__v]) 15 | PAYLOAD = headers + '\n' + row -------------------------------------------------------------------------------- /mme/locustfile.py: -------------------------------------------------------------------------------- 1 | from construct_payload import PAYLOAD 2 | from locust import HttpUser, task 3 | from authorizer import authorize 4 | from random import choice 5 | import config as config 6 | 7 | # For content type=text/csv use below line 8 | # PAYLOAD = '0.234234,0.234345,0.5634,-0.23535' 9 | 10 | # For content type=text/csv (with header) use below style 11 | # PAYLOAD = 'id,text,filename__v,format__v,size__v,charsize,pages__v\n31011,foo,foo,foo,16290,768,1' 12 | 13 | # For content type=application/json use similar to below 2 lines 14 | """ 15 | PAYLOAD = {'instances': [[2.804030096111861, 16 | -0.5078493396918523, 17 | 0.9696087678038148, 18 | -0.3296902366978934, 19 | 1.2317458148495393, 20 | 0.11934137168357777, 21 | 1.1473978828301732, 22 | -0.9193527632708587, 23 | 1.6060928595608375, 24 | 1.4077822707538348, 25 | 0.9051304120610045, 26 | -4.278295167692499, 27 | 2.513247725276389]]} 28 | PAYLOAD = json.dumps(PAYLOAD) 29 | """ 30 | 31 | target_models = [f'customer{i}.tar.gz' for i in range(1, 1001)] 32 | 33 | 34 | class WebsiteUser(HttpUser): 35 | min_wait = 1 36 | max_wait = 5 # time in ms 37 | 38 | """ 39 | @task(20) # Model-1 gets called 20x times more than Model-2 40 | def test_post_model_1(self): 41 | # Load Test SageMaker Endpoint (POST request) 42 | headers = authorize(PAYLOAD, 'customer1.tar.gz') 43 | self.client.post(conf.SAGEMAKER_ENDPOINT_URL, data=PAYLOAD, headers=headers, name='Post Request') 44 | # time.sleep(5) 45 | 46 | @task(1) 47 | def test_post_model_2(self): 48 | # Load Test SageMaker Endpoint (POST request) 49 | headers = authorize(PAYLOAD, 'customer2.tar.gz') 50 | self.client.post(conf.SAGEMAKER_ENDPOINT_URL, data=PAYLOAD, headers=headers, name='Post Request') 51 | # time.sleep(15) 52 | """ 53 | @task 54 | def test_post(self): 55 | headers = authorize(PAYLOAD, choice(target_models)) 56 | self.client.post(config.SAGEMAKER_ENDPOINT_URL, data=PAYLOAD, headers=headers, name='Post Request') 57 | -------------------------------------------------------------------------------- /requirements.txt: -------------------------------------------------------------------------------- 1 | locust==1.5.3 2 | pandas==1.2.3 --------------------------------------------------------------------------------