Not able to override default settings

[noqcks]

We're trying to alter the setting JOB_MAX_INSTANCES, but not having any luck.

Dockerfile

FROM python:2-alpine3.7

RUN apk update && apk add git postgresql-dev gcc python-dev musl-dev

COPY requirements.txt requirements.txt
RUN pip install -r requirements.txt

ENV NDSCHEDULER_SETTINGS_MODULE=settings

ADD . .

CMD ["python", "scheduler.py"]

settings.py

JOB_MAX_INSTANCES = 10

scheduler.py

"""Run the scheduler process."""
from ndscheduler.server import server

class Tassadar(server.SchedulerServer):
  pass

if __name__ == "__main__":
    Tassadar.run()

And we boot up the container and try to run more than 3 instances:

ndscheduler.core.scheduler_manager - WARNING - Execution of job "REDACTED (trigger: cron[month='*', day='*', day_of_week='*', hour='*', minute='0'], next run at: 2018-07-13 04:00:00 UTC)" skipped: maximum number of running instances reached (3)

Any ideas? I would expect it to not limit out at 3 any more, but rather 10.

Thanks!

[kartick]

Hi,

Are you sure your settings.py is being read?

We run NDS via supervisor, and config looks like this:

[program:scheduler]
directory=/scheduler
command=python scheduler/scheduler.py
environment=PYTHONPATH="scheduler:${PYTHONPATH}",NDSCHEDULER_SETTINGS_MODULE=settings,SCHEDULER_DATA_ROOT=/scheduler/data
autostart=true
autorestart=true
startretries=5
exitcodes=0
stdout_logfile=/dev/stdout
stdout_logfile_maxbytes=0
stderr_logfile=/dev/stderr
stderr_logfile_maxbytes=0

Our custom settings.py is in the /scheduler directory and it is sucked in using the NDSCHEDULER_SETTINGS_MODULE environment variable.

[sabw8217]

@noqcks can you share the rest of the logs you see on startup? As @kartick is suggesting, the likely problem is that your settings file is not being loaded at all because it is not on sys.path.

[noqcks]

Ahhh that was it.