| #!/bin/env python |
| |
| # |
| # Licensed to the Apache Software Foundation (ASF) under one or more |
| # contributor license agreements. See the NOTICE file distributed with |
| # this work for additional information regarding copyright ownership. |
| # The ASF licenses this file to You under the Apache License, Version 2.0 |
| # (the "License"); you may not use this file except in compliance with |
| # the License. You may obtain a copy of the License at |
| # |
| # http://www.apache.org/licenses/LICENSE-2.0 |
| # |
| # Unless required by applicable law or agreed to in writing, software |
| # distributed under the License is distributed on an "AS IS" BASIS, |
| # WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. |
| # See the License for the specific language governing permissions and |
| # limitations under the License. |
| # |
| |
| import argparse |
| import os |
| import json |
| import sys |
| from common.utils import Util |
| from common.kerberos import Kerberos |
| from common.kafka_client import KafkaTopic |
| import datetime |
| |
| # get master configuration. |
| script_path = os.path.dirname(os.path.abspath(__file__)) |
| conf_file = "{0}/ingest_conf.json".format(script_path) |
| master_conf = json.loads(open (conf_file).read()) |
| |
| def main(): |
| |
| # input Parameters |
| parser = argparse.ArgumentParser(description="Master Collector Ingest Daemon") |
| parser.add_argument('-t','--type',dest='type',required=True,help='Type of data that will be ingested (Pipeline Configuration)',metavar='') |
| parser.add_argument('-w','--workers',dest='workers_num',required=True,help='Number of workers for the ingest process',metavar='') |
| parser.add_argument('-id','--ingestId',dest='ingest_id',required=False,help='Ingest ID',metavar='') |
| args = parser.parse_args() |
| |
| # start collector based on data source type. |
| start_collector(args.type,args.workers_num,args.ingest_id) |
| |
| def start_collector(type,workers_num,id=None): |
| |
| # generate ingest id |
| ingest_id = str(datetime.datetime.time(datetime.datetime.now())).replace(":","_").replace(".","_") |
| |
| # create logger. |
| logger = Util.get_logger("SPOT.INGEST") |
| |
| # validate the given configuration exists in ingest_conf.json. |
| if not type in master_conf["pipelines"]: |
| logger.error("'{0}' type is not a valid configuration.".format(type)); |
| sys.exit(1) |
| |
| # validate the type is a valid module. |
| if not Util.validate_data_source(master_conf["pipelines"][type]["type"]): |
| logger.error("'{0}' type is not configured. Please check you ingest conf file".format(master_conf["pipelines"][type]["type"])); |
| sys.exit(1) |
| |
| # validate if kerberos authentication is required. |
| if os.getenv('KRB_AUTH'): |
| kb = Kerberos() |
| kb.authenticate() |
| |
| # kafka server info. |
| logger.info("Initializing kafka instance") |
| k_server = master_conf["kafka"]['kafka_server'] |
| k_port = master_conf["kafka"]['kafka_port'] |
| |
| # required zookeeper info. |
| zk_server = master_conf["kafka"]['zookeper_server'] |
| zk_port = master_conf["kafka"]['zookeper_port'] |
| |
| topic = "SPOT-INGEST-{0}_{1}".format(type,ingest_id) if not id else id |
| kafka = KafkaTopic(topic,k_server,k_port,zk_server,zk_port,workers_num) |
| |
| # create a collector instance based on data source type. |
| logger.info("Starting {0} ingest instance".format(topic)) |
| module = __import__("pipelines.{0}.collector".format(master_conf["pipelines"][type]["type"]),fromlist=['Collector']) |
| |
| # start collector. |
| ingest_collector = module.Collector(master_conf['hdfs_app_path'],kafka,type) |
| ingest_collector.start() |
| |
| if __name__=='__main__': |
| main() |