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BioMAJ process service

Project description

# About

[![PyPI version](https://badge.fury.io/py/biomaj-process.svg)](https://badge.fury.io/py/biomaj-process)

Microservice to manage the process execution of biomaj.

A protobuf interface is available in biomaj_process/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_process/message:

protoc –python_out=. message.proto

# Development

flake8 biomaj_process

# Run

## Message consumer: export BIOMAJ_CONFIG=path_to_config.yml python bin/biomaj_process_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 ..path_to/gunicorn_conf.py biomaj_download.biomaj_process_web:app

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

A prometheus /metrics endpoint is exposed on web server

3.0.16:
In case of proxy comm failure, sleep a few seconds before retry
3.0.15:
Add proc name in logs for waiting and result
3.0.14:
Add env var BIOMAJ_HOST_DATA_DIR to use with docker process executor to specify data.dir location if different between host and container (if BIOMAJ_DATA_DIR not a subdirectory of BIOMAJ_DIR for example)
If variable is not set, container wil mount data.dir between host and container, else will mount BIOMAJ_HOST_DATA_DIR:data.dir
3.0.13:
Fix traefik prefix
3.0.12:
Update pika dependency release Add tags for traefik support
3.0.11:
Catch exception for microservices if remote server is not reachable Rename package for protobuf to avoid collisions
3.0.10:
README doc fixes Add dependency banks additional volumes for Docker
3.0.9:
Allow local_endpoint definition per service Fix volumes for docker with dependency banks
3.0.8:
Fix #1, DRMAA needs colon in front of output and error path (mandatory depending on versions)
3.0.7:
fix case if process desc or type is missing in bank properties
3.0.6:
disable web thread logging
3.0.5:
retry in case of contact failure with proxy
3.0.4:
for docker, restrict directory to bank directory and dependencies add host in prometheus stats
3.0.3:
fix prometheus + gunicorn multi process add consul supervision
3.0.2:
add logging info execute docker processes in biomaj micro service
3.0.1:
bug fixes
3.0.0:
move process management out of biomaj main package

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