| #!/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 json |
| import logging |
| import time |
| from pprint import pformat |
| |
| from ActionQueue import ActionQueue |
| import AmbariConfig |
| import hostname |
| from HostInfo import HostInfo |
| from Hardware import Hardware |
| |
| |
| logger = logging.getLogger() |
| |
| firstContact = True |
| class Heartbeat: |
| |
| def __init__(self, actionQueue, config=None): |
| self.actionQueue = actionQueue |
| self.config = config |
| self.reports = [] |
| |
| def build(self, id='-1', state_interval=-1, componentsMapped=False): |
| global clusterId, clusterDefinitionRevision, firstContact |
| timestamp = int(time.time()*1000) |
| queueResult = self.actionQueue.result() |
| |
| |
| nodeStatus = { "status" : "HEALTHY", |
| "cause" : "NONE"} |
| |
| heartbeat = { 'responseId' : int(id), |
| 'timestamp' : timestamp, |
| 'hostname' : hostname.hostname(), |
| 'nodeStatus' : nodeStatus |
| } |
| |
| commandsInProgress = False |
| if not self.actionQueue.commandQueue.empty(): |
| commandsInProgress = True |
| if len(queueResult) != 0: |
| heartbeat['reports'] = queueResult['reports'] |
| heartbeat['componentStatus'] = queueResult['componentStatus'] |
| if len(heartbeat['reports']) > 0: |
| # There may be IN_PROGRESS tasks |
| commandsInProgress = True |
| pass |
| |
| # For first request/heartbeat assume no components are mapped |
| if int(id) == 0: |
| componentsMapped = False |
| |
| logger.info("Sending heartbeat with response id: " + str(id) + " and " |
| "timestamp: " + str(timestamp) + |
| ". Command(s) in progress: " + repr(commandsInProgress) + |
| ". Components mapped: " + repr(componentsMapped)) |
| logger.debug("Heartbeat : " + pformat(heartbeat)) |
| |
| if (int(id) >= 0) and state_interval > 0 and (int(id) % state_interval) == 0: |
| hostInfo = HostInfo(self.config) |
| nodeInfo = { } |
| # for now, just do the same work as registration |
| # this must be the last step before returning heartbeat |
| hostInfo.register(nodeInfo, componentsMapped, commandsInProgress) |
| heartbeat['agentEnv'] = nodeInfo |
| logger.debug("agentEnv : " + str(nodeInfo)) |
| mounts = Hardware.osdisks() |
| heartbeat['mounts'] = mounts |
| logger.debug("mounts : " + str(mounts)) |
| |
| return heartbeat |
| |
| def main(argv=None): |
| actionQueue = ActionQueue(AmbariConfig.config) |
| heartbeat = Heartbeat(actionQueue) |
| print json.dumps(heartbeat.build('3',3)) |
| |
| if __name__ == '__main__': |
| main() |