help = "Print additional information to stdout.")
args = parser.parse_args()
# create HOMEDIR/.hq directory
hqDir = "{home}/.hq".format( home=HOMEDIR )
if not os.path.exists( hqDir ):
os.makedirs( hqDir )
####################################
# send requests to hq-user-server
args.command = join(args.command,' ')
hqUserServer = hQServerProxy( serverType = 'user-server',
verboseMode = args.verboseMode )
hqUserServer.run()
if not hqUserServer.running:
sys.stderr.write("Could not start a hq-user-server!\n")
sys.exit(-1)
requests = []
# assembl requests
if args.showStatus:
requests = ['status']
else:
if args.jobsFile:
# send several jobs at once
def get_exec_server( self,
host_id,
host_name,
do_not_invoke=False,
logger=None,
delay=0 ):
"""! @brief invoke exec server on given host if necessary
"""
if not logger:
logger=self.logger.write
if host_id not in self.not_invoking_exec_server:
# create new event
self.not_invoking_exec_server[ host_id ] = threading.Event()
elif not self.not_invoking_exec_server[ host_id ].wait( 10 ): # wait until event has been set. maximal 10s
logger("TIMEOUT",logCategory="debug")
# clear event
self.not_invoking_exec_server[host_id].set()
return None
# unset event which indicates that a exec server is currently invoking
self.not_invoking_exec_server[host_id].clear()
if host_id not in self.exec_servers or not self.exec_servers[ host_id ]:
# create a server proxy for hq-exec-server
for cnt,delay in enumerate([0,2,5]):
if delay:
logger( "sleep for {t}s".format(t=delay) )
sleep( delay )
logger( "{c}. attempt to get exec server proxy for host {h}".format( c=cnt+1,
h=host_name ),
logCategory="debug" )
ExecServer = hQServerProxy( host = host_name,
serverType = "exec-server" )
if do_not_invoke:
# just connect to server without invoking it
ExecServer.connect()
else:
# connect
ExecServer.run()
if ExecServer.isRunning():
self.exec_servers[ host_id ] = ExecServer
logger( "get exec server proxy for host {h}:{p}".format( h=ExecServer.host,
p=ExecServer.port ) )
break
else:
self.exec_servers[ host_id ] = None
logger( "getting exec server proxy for host {h} failed".format( h=host_name ) )
else:
ExecServer = self.exec_servers[ host_id ]
# check if server is responsive
if not ExecServer.isRunning():
self.exec_servers[ host_id ] = None
# clear event
self.not_invoking_exec_server[host_id].set()
return self.exec_servers[ host_id ]
