def run(self):
"""
Check if slaves are alive
"""
while True:
yield gen.sleep(gConfigurationData.getSlavesGraceTime())
self._checkSlavesStatus()
def __checkSlavesStatus(self, forceWriteConfiguration=False):
gLogger.info("Checking status of slave servers")
iGraceTime = gConfigurationData.getSlavesGraceTime()
lSlaveURLs = self.dAliveSlaveServers.keys()
bModifiedSlaveServers = False
for sSlaveURL in lSlaveURLs:
if time.time() - self.dAliveSlaveServers[sSlaveURL] > iGraceTime:
gLogger.info("Found dead slave", sSlaveURL)
del self.dAliveSlaveServers[sSlaveURL]
bModifiedSlaveServers = True
if bModifiedSlaveServers or forceWriteConfiguration:
gConfigurationData.setServers("%s, %s" % (self.sURL, ", ".join(self.dAliveSlaveServers.keys())))
self.__generateNewVersion()
def forceSlavesUpdate(self):
"""
Force updating configuration on all the slave configuration servers
:return: Nothing
"""
gLogger.info("Updating configuration on slave servers")
iGraceTime = gConfigurationData.getSlavesGraceTime()
urlSet = set()
for slaveURL in self.dAliveSlaveServers:
if time.time() - self.dAliveSlaveServers[slaveURL] <= iGraceTime:
urlSet.add(slaveURL)
self._updateServiceConfiguration(urlSet, fromMaster=True)
def __checkSlavesStatus(self, forceWriteConfiguration=False):
gLogger.info("Checking status of slave servers")
iGraceTime = gConfigurationData.getSlavesGraceTime()
bModifiedSlaveServers = False
for sSlaveURL in self.dAliveSlaveServers.keys():
if time.time() - self.dAliveSlaveServers[sSlaveURL] > iGraceTime:
gLogger.info("Found dead slave", sSlaveURL)
del self.dAliveSlaveServers[sSlaveURL]
bModifiedSlaveServers = True
if bModifiedSlaveServers or forceWriteConfiguration:
gConfigurationData.setServers("%s, %s" % (self.sURL,
", ".join(self.dAliveSlaveServers.keys())))
self.__generateNewVersion()
def forceSlavesUpdate(self):
"""
Force updating configuration on all the slave configuration servers
:return: S_OK/S_ERROR, Value Successful/Failed dict with service URLs
"""
gLogger.info("Updating configuration on slave servers")
iGraceTime = gConfigurationData.getSlavesGraceTime()
self.__updateResultDict = {"Successful": {}, "Failed": {}}
urlSet = set()
for slaveURL in self.dAliveSlaveServers:
if time.time() - self.dAliveSlaveServers[slaveURL] <= iGraceTime:
urlSet.add(slaveURL)
return self.__updateServiceConfiguration(urlSet, fromMaster=True)
def _checkSlavesStatus(self, forceWriteConfiguration=False):
"""
Check if Slaves server are still availlable
:param forceWriteConfiguration: (default False) Force rewriting configuration after checking slaves
"""
gLogger.info("Checking status of slave servers")
iGraceTime = gConfigurationData.getSlavesGraceTime()
bModifiedSlaveServers = False
for sSlaveURL in list(self.dAliveSlaveServers):
if time.time() - self.dAliveSlaveServers[sSlaveURL] > iGraceTime:
gLogger.warn("Found dead slave", sSlaveURL)
del self.dAliveSlaveServers[sSlaveURL]
bModifiedSlaveServers = True
if bModifiedSlaveServers or forceWriteConfiguration:
gConfigurationData.setServers(", ".join(self.dAliveSlaveServers))
self.__generateNewVersion()
def run( self ):
while True:
iWaitTime = gConfigurationData.getSlavesGraceTime()
time.sleep( iWaitTime )
self.__checkSlavesStatus()
def run(self):
while True:
iWaitTime = gConfigurationData.getSlavesGraceTime()
time.sleep(iWaitTime)
self._checkSlavesStatus()
