Source code for apache_beam.runners.job.manager

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"""A object to control to the Job API Co-Process
"""

import logging
import subprocess
import time

import grpc

from apache_beam.portability.api import beam_job_api_pb2_grpc


[docs]class DockerRPCManager(object): """A native co-process to start a contianer that speaks the JobApi """ def __init__(self, run_command=None): # TODO(BEAM-2431): Change this to a docker container from a command. self.process = subprocess.Popen( ['python', '-m', 'apache_beam.runners.experimental.python_rpc_direct.server']) self.channel = grpc.insecure_channel('localhost:50051') self.service = beam_job_api_pb2_grpc.JobServiceStub(self.channel) # Sleep for 2 seconds for process to start completely # This is just for the co-process and would be removed # once we migrate to docker. time.sleep(2) def __del__(self): """Terminate the co-process when the manager is GC'ed """ logging.info('Shutting the co-process') self.process.terminate()