| #!/usr/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 sys |
| import threading |
| import time |
| |
| import mesos.interface |
| from mesos.interface import mesos_pb2 |
| from mesos.executor import MesosExecutorDriver |
| |
| class MyExecutor(mesos.interface.Executor): |
| def launchTask(self, driver, task): |
| # Create a thread to run the task. Tasks should always be run in new |
| # threads or processes, rather than inside launchTask itself. |
| def run_task(): |
| print "Running task %s" % task.task_id.value |
| update = mesos_pb2.TaskStatus() |
| update.task_id.value = task.task_id.value |
| update.state = mesos_pb2.TASK_RUNNING |
| update.data = 'data with a \0 byte' |
| driver.sendStatusUpdate(update) |
| |
| # This is where one would perform the requested task. |
| |
| print "Sending status update..." |
| update = mesos_pb2.TaskStatus() |
| update.task_id.value = task.task_id.value |
| update.state = mesos_pb2.TASK_FINISHED |
| update.data = 'data with a \0 byte' |
| driver.sendStatusUpdate(update) |
| print "Sent status update" |
| |
| thread = threading.Thread(target=run_task) |
| thread.start() |
| |
| def frameworkMessage(self, driver, message): |
| # Send it back to the scheduler. |
| driver.sendFrameworkMessage(message) |
| |
| if __name__ == "__main__": |
| print "Starting executor" |
| driver = MesosExecutorDriver(MyExecutor()) |
| sys.exit(0 if driver.run() == mesos_pb2.DRIVER_STOPPED else 1) |