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BioMAJ download service

Project description

# About

Microservice to manage the downloads of biomaj.

A protobuf interface is available in biomaj_download/message/message_pb2.py to exchange messages between BioMAJ and the download service.
Messages go through RabbitMQ (to be installed).

# Protobuf

To compile protobuf, in biomaj_download/message:

protoc --python_out=. message.proto

# Development

flake8 biomaj_download/\*.py biomaj_download/download


# Run

## Message consumer:

export BIOMAJ_CONFIG=path_to_config.yml
python bin/biomaj_download_consumer.py

## Web server

If package is installed via pip, you need a file named *gunicorn_conf.py* containing somehwhere on local server:

def worker_exit(server, worker):
from prometheus_client import multiprocess
multiprocess.mark_process_dead(worker.pid)

If you cloned the repository and installed it via python setup.py install, just refer to the *gunicorn_conf.py* in the cloned repository.


export BIOMAJ_CONFIG=path_to_config.yml
rm -rf ..path_to/prometheus-multiproc
mkdir -p ..path_to/prometheus-multiproc
export prometheus_multiproc_dir=..path_to/prometheus-multiproc
gunicorn -c gunicorn_conf.py biomaj_download.biomaj_download_web:app

Web processes should be behind a proxy/load balancer, API base url /api/download

Prometheus endpoint metrics are exposed via /metrics on web server


3.0.22:
Fix **/* remote.files parsing
3.0.21:
Fix traefik labels
3.0.20:
Update pika dependency release
Add tags for traefik support
3.0.19:
Check archives after download
Fix python regexps syntax (deprecation)
3.0.18:
Rename protobuf and use specific package to avoid conflicts
3.0.17:
Regenerate protobuf message desc, failing on python3
3.0.16:
Add missing req in setup.py
3.0.15:
Fix progress download control where could have infinite loop
Add irods download

3.0.14:
Allow setup of local_endpoint per service, else use default local_endpoint

3.0.13:
In rate limiting, add progress vs total of download
Fix rate limiting submission

3.0.12:
Add retry in case of session creation failure
disable web thread logging

3.0.11:
Display progress of download by percent of downloads
In case of contact error in downloadclient, retry connection

3.0.10:
Feature #3: Add rate limiting option to limit number of parallel downloads for a client

3.0.9:
Add host in prometheus stats
Fix #2: allow setting http.group.file.size or http.group.file.date to -1 if not avalaible in http(s) page for regexp

3.0.8:
Fix prometheus stats
Add consul supervision

3.0.7:
Change size type to int64

3.0.6:
Fix download_or_copy to avoid downloading a file existing in a previous production directory

3.0.4:
Fixes on messages

3.0.3:
Fix management of timeout leading to a crash when using biomaj.download parameter.

3.0.2:
set rabbitmq parameter optional

3.0.1:
add missing README etc.. in package

3.0.0:
move download management out of biomaj main package


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