def __init__(self, pgRoot,configPath, configuration = Configuration(), serviceName = ''):
self.configPath = configPath
self.ha2Configuration =Ha2Configuration(configPath)
self.configuration = configuration
self.ha2ToolPath = configuration.ha2ToolPath
self.ha2Tool = Ha2Tool(pgRoot,configPath,self.ha2ToolPath)
self.serviceName = serviceName
self.serviceStatus = None
self.logger = logging.getLogger()
#old serving index version:
self.indexVersionMap = dict()
#service checker
self.serviceChecker = ServiceChecker(pgRoot,configPath, configuration)
#for rollback
self.restarted = False
class RuntimeService:
intervalSecond = 10
def __init__(self, pgRoot,configPath, configuration = Configuration(), serviceName = ''):
self.configPath = configPath
self.ha2Configuration =Ha2Configuration(configPath)
self.configuration = configuration
self.ha2ToolPath = configuration.ha2ToolPath
self.ha2Tool = Ha2Tool(pgRoot,configPath,self.ha2ToolPath)
self.serviceName = serviceName
self.serviceStatus = None
self.logger = logging.getLogger()
#old serving index version:
self.indexVersionMap = dict()
#service checker
self.serviceChecker = ServiceChecker(pgRoot,configPath, configuration)
#for rollback
self.restarted = False
#rollback to last correct version.
#if not known last correct version, will return False
def rollback(self, configVersion, clusterIndexVersionMap):
self.logger.info(']]]]]:rollback config path: [%s]' % self.configPath)
self.logger.info(']]]]]:rollback index path: [%s]' % self.configPath)
return True
def deployConfiguration(self):
self.logger.info('deploy configuration for: [%s]' % self.configPath)
timeout = self.configuration.deployConfigurationTimeout
if not self.ha2Tool.deployConfiguration(self.serviceName,timeout):
self.logger.error('deploy configuration error: [%s]' % self.serviceName)
return False
return True
def checkStartCorrect(self):
if not self.serviceChecker.checkService(self.serviceName):
return False
return True
#check service is ready for serving, all partition load success
def isServiceServing(self):
serviceStatus = self.getServiceInternalStatus()
if serviceStatus != 'loaddone':
return False
return True
#stop service
def stopService(self):
self.logger.info('stop service: [%s]' % self.configPath)
timeout = self.configuration.stopServiceTimeout
if not self.ha2Tool.stopService(self.serviceName,timeout):
return False
self.restarted = False
self.waitForServiceUnload()
#remove nuwa path for this service
serviceNuwaRootPath = self.ha2Configuration.getServiceNuwaRootAddress()
self.logger.info('remove nuwa dir for [%s]' % serviceNuwaRootPath)
nuwaConsole = NuwaConsoleWrapper(self.configuration.nuwaConsoleBin)
timeout = self.configuration.commandTimeout
nuwaConsole.removeIfExists(serviceNuwaRootPath, timeout)
return True
def _startServiceByTool(self, timeout):
return self.ha2Tool.startService(self.serviceName, timeout)
def startService(self):
self.logger.info('start service: [%s]' % self.configPath)
timeout = self.configuration.serviceStartTimeout
self.serviceName = self._startServiceByTool(timeout)
if self.serviceName == None:
self.logger.error('start service failed: [%s]' % self.configPath)
return error.ERROR_HA2_TOOL_START_SERVICE
self.logger.debug('start by tool success, service name: [%s]' % self.serviceName)
timeout = self.configuration.loadPartitionTimeout + self.configuration.serviceWaitingTimeout
if not self.waitForLoadPartition(timeout):
return error.ERROR_LOAD_PARTITION_FAILED
if not self.checkStartCorrect():
return error.ERROR_LOAD_PARTITION_FAILED
self.restarted = True
return error.NO_ERROR
def buildIncrIndex(self, incr_data):
self.logger.info('build Inrease data: ', incr_data)
if not isServiceServing():
return error.ERROR_CHECK_START_FAILED
return self.ha2Tool.buildIndex(self.serviceName, timeout)
def waitForRunningStatus(self, timeout):
self.logger.info('waiting for running...')
startTime = time.time()
statusStr = self.getServiceStatus()
while statusStr == None or statusStr == 'Waiting':
currTime = time.time()
if startTime + timeout < currTime:
self.logger.error("wait for service running timeout")
return False
time.sleep(self.intervalSecond)
statusStr = self.getServiceStatus()
if statusStr == 'Failed':
self.logger.error("start service failed")
return False
self.logger.debug('service is running...')
return True
def waitForServiceUnload(self):
self.logger.info('wait for service unload')
serviceStatus = self.getServiceInternalStatus()
while serviceStatus != None:
time.sleep(5)
serviceStatus = self.getServiceInternalStatus()
def waitForLoadPartition(self, timeout):
self.logger.info('waiting for load partition...')
startTime = time.time()
while not self.isServiceServing():
currTime = time.time()
if startTime + timeout < currTime:
self.logger.error("service load index timeout")
return False
time.sleep(self.intervalSecond)
self.logger.debug('service load partition success...')
return True
#get service status from fuxi master
def getServiceStatus(self):
timeout = self.configuration.commandTimeout
rpcCallerWrapper = RpcCallerWrapper(self.ha2Configuration)
return rpcCallerWrapper.getServiceStatusByFullName(self.serviceName, timeout)
#get status from server admin
def getServiceInternalStatus(self):
timeout = self.configuration.commandTimeout
return self.ha2Tool.getClusterStatus(self.serviceName,self.configuration, timeout)
