1
我的Python軟件死鎖interminttently（可能是由於一些競爭條件）蟒蛇2.7多線程技術在印刷掛
內正在運行的線程中的一個，它運行
while True:
msg = printQ.get()
print msg
sys.stdout.flush()
在調試時，我看到我的一個線程掛起在 sys.stdout.flush（）。如果我刪除了沖洗線，線程會在打印時掛起。 這是打印到stdout
如果停用此線程，我的軟件犯規僵局
有沒有在多線程ENV沖洗標準輸出的任何已知問題的唯一線索？
這些是在軟件死鎖時正在運行線程的跟蹤。什麼東西都跳出來給你們？對我來說，它看起來像睡了幾次，等待隊列中的物品。只是很奇怪我的事情是sys.stdout.flush（）
# ThreadID: 139736001795840
File: "/usr/software/rats/bedrock/lib/python2.7/threading.py", line 783, in __bootstrap
self.__bootstrap_inner()
File: "/usr/software/rats/bedrock/lib/python2.7/threading.py", line 810, in __bootstrap_inner
self.run()
File: "/usr/software/rats/bedrock/lib/python2.7/threading.py", line 763, in run
self.__target(*self.__args, **self.__kwargs)
File: "/u/eugenep/bedrock/source/br-new-release/lib/btool/Dispatch_Factory.py", line 726, in worker
jobref = Host.r.blpop(Dispatch.rkey_completeQ, timeout=1)
File: "/usr/software/rats/bedrock/lib/python2.7/site-packages/redis/client.py", line 1090, in blpop
return self.execute_command('BLPOP', *keys)
File: "/usr/software/rats/bedrock/lib/python2.7/site-packages/redis/client.py", line 529, in execute_command
return self.parse_response(connection, command_name, **options)
File: "/usr/software/rats/bedrock/lib/python2.7/site-packages/redis/client.py", line 541, in parse_response
response = connection.read_response()
File: "/usr/software/rats/bedrock/lib/python2.7/site-packages/redis/connection.py", line 545, in read_response
response = self._parser.read_response()
File: "/usr/software/rats/bedrock/lib/python2.7/site-packages/redis/connection.py", line 213, in read_response
response = self._buffer.readline()
File: "/usr/software/rats/bedrock/lib/python2.7/site-packages/redis/connection.py", line 151, in readline
self._read_from_socket()
File: "/usr/software/rats/bedrock/lib/python2.7/site-packages/redis/connection.py", line 109, in _read_from_socket
data = self._sock.recv(socket_read_size)
# ThreadID: 139736012285696
File: "/usr/software/rats/bedrock/lib/python2.7/threading.py", line 783, in __bootstrap
self.__bootstrap_inner()
File: "/usr/software/rats/bedrock/lib/python2.7/threading.py", line 810, in __bootstrap_inner
self.run()
File: "/usr/software/rats/bedrock/lib/python2.7/threading.py", line 763, in run
self.__target(*self.__args, **self.__kwargs)
File: "/u/eugenep/bedrock/source/br-new-release/lib/btool/Dispatch_Factory.py", line 605, in worker
job = Factory.dispQ.get()
File: "/usr/software/rats/bedrock/lib/python2.7/Queue.py", line 168, in get
self.not_empty.wait()
File: "/usr/software/rats/bedrock/lib/python2.7/threading.py", line 340, in wait
waiter.acquire()
# ThreadID: 139736022775552
File: "/usr/software/rats/bedrock/lib/python2.7/threading.py", line 783, in __bootstrap
self.__bootstrap_inner()
File: "/usr/software/rats/bedrock/lib/python2.7/threading.py", line 810, in __bootstrap_inner
self.run()
File: "/usr/software/rats/bedrock/lib/python2.7/threading.py", line 763, in run
self.__target(*self.__args, **self.__kwargs)
File: "/u/eugenep/bedrock/source/br-new-release/lib/btool/Dispatch_Factory.py", line 605, in worker
job = Factory.dispQ.get()
File: "/usr/software/rats/bedrock/lib/python2.7/Queue.py", line 168, in get
self.not_empty.wait()
File: "/usr/software/rats/bedrock/lib/python2.7/threading.py", line 340, in wait
waiter.acquire()
# ThreadID: 139737333483264
File: "/usr/software/rats/bedrock/lib/python2.7/threading.py", line 783, in __bootstrap
self.__bootstrap_inner()
File: "/usr/software/rats/bedrock/lib/python2.7/threading.py", line 810, in __bootstrap_inner
self.run()
File: "/usr/software/rats/bedrock/lib/python2.7/threading.py", line 763, in run
self.__target(*self.__args, **self.__kwargs)
File: "/u/eugenep/bedrock/source/br-new-release/lib/btool/Dispatch_Factory.py", line 236, in worker
(job, msg, to_debug) = Factory.logQ.get()
File: "/usr/software/rats/bedrock/lib/python2.7/Queue.py", line 168, in get
self.not_empty.wait()
File: "/usr/software/rats/bedrock/lib/python2.7/threading.py", line 340, in wait
waiter.acquire()
# ThreadID: 139736461068032
File: "/usr/software/rats/bedrock/lib/python2.7/threading.py", line 783, in __bootstrap
self.__bootstrap_inner()
File: "/usr/software/rats/bedrock/lib/python2.7/threading.py", line 810, in __bootstrap_inner
self.run()
File: "/usr/software/rats/bedrock/lib/python2.7/threading.py", line 763, in run
self.__target(*self.__args, **self.__kwargs)
File: "/u/eugenep/bedrock/source/br-new-release/lib/btool/Dispatch_Factory.py", line 605, in worker
job = Factory.dispQ.get()
File: "/usr/software/rats/bedrock/lib/python2.7/Queue.py", line 168, in get
self.not_empty.wait()
File: "/usr/software/rats/bedrock/lib/python2.7/threading.py", line 340, in wait
waiter.acquire()
# ThreadID: 139736492537600
File: "/usr/software/rats/bedrock/lib/python2.7/threading.py", line 783, in __bootstrap
self.__bootstrap_inner()
File: "/usr/software/rats/bedrock/lib/python2.7/threading.py", line 810, in __bootstrap_inner
self.run()
File: "/usr/software/rats/bedrock/lib/python2.7/threading.py", line 763, in run
self.__target(*self.__args, **self.__kwargs)
File: "/u/eugenep/bedrock/source/br-new-release/lib/btool/Dispatch_Factory.py", line 470, in worker
job = Factory.rdyQ.get()
File: "/usr/software/rats/bedrock/lib/python2.7/Queue.py", line 168, in get
self.not_empty.wait()
File: "/usr/software/rats/bedrock/lib/python2.7/threading.py", line 340, in wait
waiter.acquire()
# ThreadID: 139737322993408
File: "/usr/software/rats/bedrock/lib/python2.7/threading.py", line 783, in __bootstrap
self.__bootstrap_inner()
File: "/usr/software/rats/bedrock/lib/python2.7/threading.py", line 810, in __bootstrap_inner
self.run()
File: "/usr/software/rats/bedrock/lib/python2.7/threading.py", line 763, in run
self.__target(*self.__args, **self.__kwargs)
File: "/u/eugenep/bedrock/source/br-new-release/lib/btool/Dispatch_Factory.py", line 313, in worker
sys.stdout.flush()
# ThreadID: 139736909850368
File: "/usr/software/rats/bedrock/lib/python2.7/threading.py", line 783, in __bootstrap
self.__bootstrap_inner()
File: "/usr/software/rats/bedrock/lib/python2.7/threading.py", line 810, in __bootstrap_inner
self.run()
File: "/usr/software/rats/bedrock/lib/python2.7/threading.py", line 763, in run
self.__target(*self.__args, **self.__kwargs)
File: "/u/eugenep/bedrock/source/br-new-release/lib/btool/Dispatch_Factory.py", line 470, in worker
job = Factory.rdyQ.get()
File: "/usr/software/rats/bedrock/lib/python2.7/Queue.py", line 168, in get
self.not_empty.wait()
File: "/usr/software/rats/bedrock/lib/python2.7/threading.py", line 340, in wait
waiter.acquire()
# ThreadID: 139736920340224
File: "/usr/software/rats/bedrock/lib/python2.7/threading.py", line 783, in __bootstrap
self.__bootstrap_inner()
File: "/usr/software/rats/bedrock/lib/python2.7/threading.py", line 810, in __bootstrap_inner
self.run()
File: "/usr/software/rats/bedrock/lib/python2.7/threading.py", line 763, in run
self.__target(*self.__args, **self.__kwargs)
File: "/u/eugenep/bedrock/source/br-new-release/lib/btool/Dispatch_Factory.py", line 470, in worker
job = Factory.rdyQ.get()
File: "/usr/software/rats/bedrock/lib/python2.7/Queue.py", line 168, in get
self.not_empty.wait()
File: "/usr/software/rats/bedrock/lib/python2.7/threading.py", line 340, in wait
waiter.acquire()
# ThreadID: 139737354462976
File: "/usr/software/rats/bedrock/lib/python2.7/threading.py", line 783, in __bootstrap
self.__bootstrap_inner()
File: "/usr/software/rats/bedrock/lib/python2.7/threading.py", line 810, in __bootstrap_inner
self.run()
File: "/usr/software/rats/bedrock/lib/python2.7/threading.py", line 763, in run
self.__target(*self.__args, **self.__kwargs)
File: "/u/eugenep/bedrock/source/br-new-release/lib/btool/Dispatch_Factory.py", line 350, in worker
item = Factory.streamQ.get()
File: "/usr/software/rats/bedrock/lib/python2.7/Queue.py", line 168, in get
self.not_empty.wait()
File: "/usr/software/rats/bedrock/lib/python2.7/threading.py", line 340, in wait
waiter.acquire()
# ThreadID: 139736930830080
File: "/usr/software/rats/bedrock/lib/python2.7/threading.py", line 783, in __bootstrap
self.__bootstrap_inner()
File: "/usr/software/rats/bedrock/lib/python2.7/threading.py", line 810, in __bootstrap_inner
self.run()
File: "/usr/software/rats/bedrock/lib/python2.7/threading.py", line 763, in run
self.__target(*self.__args, **self.__kwargs)
File: "/u/eugenep/bedrock/source/br-new-release/lib/btool/Dispatch_Factory.py", line 470, in worker
job = Factory.rdyQ.get()
File: "/usr/software/rats/bedrock/lib/python2.7/Queue.py", line 168, in get
self.not_empty.wait()
File: "/usr/software/rats/bedrock/lib/python2.7/threading.py", line 340, in wait
waiter.acquire()
# ThreadID: 139736471557888
File: "/usr/software/rats/bedrock/lib/python2.7/threading.py", line 783, in __bootstrap
self.__bootstrap_inner()
File: "/usr/software/rats/bedrock/lib/python2.7/threading.py", line 810, in __bootstrap_inner
self.run()
File: "/usr/software/rats/bedrock/lib/python2.7/threading.py", line 763, in run
self.__target(*self.__args, **self.__kwargs)
File: "/u/eugenep/bedrock/source/br-new-release/lib/btool/Dispatch_Factory.py", line 470, in worker
job = Factory.rdyQ.get()
File: "/usr/software/rats/bedrock/lib/python2.7/Queue.py", line 168, in get
self.not_empty.wait()
File: "/usr/software/rats/bedrock/lib/python2.7/threading.py", line 340, in wait
waiter.acquire()
# ThreadID: 139736951809792
File: "/usr/software/rats/bedrock/lib/python2.7/threading.py", line 783, in __bootstrap
self.__bootstrap_inner()
File: "/usr/software/rats/bedrock/lib/python2.7/threading.py", line 810, in __bootstrap_inner
self.run()
File: "/usr/software/rats/bedrock/lib/python2.7/threading.py", line 763, in run
self.__target(*self.__args, **self.__kwargs)
File: "/u/eugenep/bedrock/source/br-new-release/lib/btool/Dispatch_Factory.py", line 470, in worker
job = Factory.rdyQ.get()
File: "/usr/software/rats/bedrock/lib/python2.7/Queue.py", line 168, in get
self.not_empty.wait()
File: "/usr/software/rats/bedrock/lib/python2.7/threading.py", line 340, in wait
waiter.acquire()
# ThreadID: 139736962299648
File: "/usr/software/rats/bedrock/lib/python2.7/threading.py", line 783, in __bootstrap
self.__bootstrap_inner()
File: "/usr/software/rats/bedrock/lib/python2.7/threading.py", line 810, in __bootstrap_inner
self.run()
File: "/usr/software/rats/bedrock/lib/python2.7/threading.py", line 763, in run
self.__target(*self.__args, **self.__kwargs)
File: "/u/eugenep/bedrock/source/br-new-release/lib/btool/Dispatch_Factory.py", line 470, in worker
job = Factory.rdyQ.get()
File: "/usr/software/rats/bedrock/lib/python2.7/Queue.py", line 168, in get
self.not_empty.wait()
File: "/usr/software/rats/bedrock/lib/python2.7/threading.py", line 340, in wait
waiter.acquire()
# ThreadID: 139737474270976
File: "/usr/software/rats/bedrock/lib/python2.7/threading.py", line 783, in __bootstrap
self.__bootstrap_inner()
File: "/usr/software/rats/bedrock/lib/python2.7/threading.py", line 810, in __bootstrap_inner
self.run()
File: "/u/eugenep/bedrock/source/br-new-release/lib/btool/Status_thread.py", line 131, in run
request = self._queue.get(timeout=1) # blocking get with a timeout of 1 second
File: "/usr/software/rats/bedrock/lib/python2.7/Queue.py", line 177, in get
self.not_empty.wait(remaining)
File: "/usr/software/rats/bedrock/lib/python2.7/threading.py", line 359, in wait
_sleep(delay)
# ThreadID: 139736450578176
File: "/usr/software/rats/bedrock/lib/python2.7/threading.py", line 783, in __bootstrap
self.__bootstrap_inner()
File: "/usr/software/rats/bedrock/lib/python2.7/threading.py", line 810, in __bootstrap_inner
self.run()
File: "/usr/software/rats/bedrock/lib/python2.7/threading.py", line 763, in run
self.__target(*self.__args, **self.__kwargs)
File: "/u/eugenep/bedrock/source/br-new-release/lib/btool/Dispatch_Factory.py", line 605, in worker
job = Factory.dispQ.get()
File: "/usr/software/rats/bedrock/lib/python2.7/Queue.py", line 168, in get
self.not_empty.wait()
File: "/usr/software/rats/bedrock/lib/python2.7/threading.py", line 340, in wait
waiter.acquire()
# ThreadID: 139737364952832
File: "/usr/software/rats/bedrock/lib/python2.7/threading.py", line 783, in __bootstrap
self.__bootstrap_inner()
File: "/usr/software/rats/bedrock/lib/python2.7/threading.py", line 810, in __bootstrap_inner
self.run()
File: "/u/eugenep/bedrock/source/br-new-release/lib/btool/Stack_Tracer.py", line 56, in run
self.stacktraces()
File: "/u/eugenep/bedrock/source/br-new-release/lib/btool/Stack_Tracer.py", line 70, in stacktraces
fout.write(stacktraces())
File: "/u/eugenep/bedrock/source/br-new-release/lib/btool/Stack_Tracer.py", line 22, in stacktraces
for filename, lineno, name, line in traceback.extract_stack(stack):
# ThreadID: 139737343973120
File: "/usr/software/rats/bedrock/lib/python2.7/threading.py", line 783, in __bootstrap
self.__bootstrap_inner()
File: "/usr/software/rats/bedrock/lib/python2.7/threading.py", line 810, in __bootstrap_inner
self.run()
File: "/usr/software/rats/bedrock/lib/python2.7/threading.py", line 763, in run
self.__target(*self.__args, **self.__kwargs)
File: "/u/eugenep/bedrock/source/br-new-release/lib/btool/Dispatch_Factory.py", line 416, in worker
time.sleep(1)
# ThreadID: 139736440088320
File: "/usr/software/rats/bedrock/lib/python2.7/threading.py", line 783, in __bootstrap
self.__bootstrap_inner()
File: "/usr/software/rats/bedrock/lib/python2.7/threading.py", line 810, in __bootstrap_inner
self.run()
File: "/usr/software/rats/bedrock/lib/python2.7/threading.py", line 763, in run
self.__target(*self.__args, **self.__kwargs)
File: "/u/eugenep/bedrock/source/br-new-release/lib/btool/Dispatch_Factory.py", line 605, in worker
job = Factory.dispQ.get()
File: "/usr/software/rats/bedrock/lib/python2.7/Queue.py", line 168, in get
self.not_empty.wait()
File: "/usr/software/rats/bedrock/lib/python2.7/threading.py", line 340, in wait
waiter.acquire()
# ThreadID: 139736482047744
File: "/usr/software/rats/bedrock/lib/python2.7/threading.py", line 783, in __bootstrap
self.__bootstrap_inner()
File: "/usr/software/rats/bedrock/lib/python2.7/threading.py", line 810, in __bootstrap_inner
self.run()
File: "/usr/software/rats/bedrock/lib/python2.7/threading.py", line 763, in run
self.__target(*self.__args, **self.__kwargs)
File: "/u/eugenep/bedrock/source/br-new-release/lib/btool/Dispatch_Factory.py", line 470, in worker
job = Factory.rdyQ.get()
File: "/usr/software/rats/bedrock/lib/python2.7/Queue.py", line 168, in get
self.not_empty.wait()
File: "/usr/software/rats/bedrock/lib/python2.7/threading.py", line 340, in wait
waiter.acquire()
# ThreadID: 139737312503552
File: "/usr/software/rats/bedrock/lib/python2.7/threading.py", line 783, in __bootstrap
self.__bootstrap_inner()
File: "/usr/software/rats/bedrock/lib/python2.7/threading.py", line 810, in __bootstrap_inner
self.run()
File: "/usr/software/rats/bedrock/lib/python2.7/threading.py", line 763, in run
self.__target(*self.__args, **self.__kwargs)
File: "/u/eugenep/bedrock/source/br-new-release/lib/btool/Dispatch_Factory.py", line 470, in worker
job = Factory.rdyQ.get()
File: "/usr/software/rats/bedrock/lib/python2.7/Queue.py", line 168, in get
self.not_empty.wait()
File: "/usr/software/rats/bedrock/lib/python2.7/threading.py", line 340, in wait
waiter.acquire()
# ThreadID: 139737628997376
File: "/u/eugenep/bedrock/source/br-new-release/lib/btool/Br.py", line 86, in <module>
Command.main()
File: "/u/eugenep/bedrock/source/br-new-release/lib/btool/Command.py", line 149, in main
com.run(args)
File: "/u/eugenep/bedrock/source/br-new-release/lib/btool/Btool.py", line 181, in run
self.make_locked(args)
File: "/u/eugenep/bedrock/source/br-new-release/lib/btool/Btool.py", line 227, in make_locked
Dispatch.run_jobs()
File: "/u/eugenep/bedrock/source/br-new-release/lib/btool/Dispatch.py", line 732, in run_jobs
# we got any hung jobs??
File: "/u/eugenep/bedrock/source/br-new-release/lib/btool/Dispatch.py", line 332, in check_for_hung_jobs
really_running = job.log_check()
File: "/u/eugenep/bedrock/source/br-new-release/lib/btool/Job.py", line 391, in log_check
if Checkproc.check_remote_process(Options.options.rsh_cmd, lock.hostname, lock.pid, 20):
File: "/u/eugenep/bedrock/source/br-new-release/lib/btool/Checkproc.py", line 92, in check_remote_process
time.sleep(1)
# ThreadID: 139736941319936
File: "/usr/software/rats/bedrock/lib/python2.7/threading.py", line 783, in __bootstrap
self.__bootstrap_inner()
File: "/usr/software/rats/bedrock/lib/python2.7/threading.py", line 810, in __bootstrap_inner
self.run()
File: "/usr/software/rats/bedrock/lib/python2.7/threading.py", line 763, in run
self.__target(*self.__args, **self.__kwargs)
File: "/u/eugenep/bedrock/source/br-new-release/lib/btool/Dispatch_Factory.py", line 470, in worker
job = Factory.rdyQ.get()
File: "/usr/software/rats/bedrock/lib/python2.7/Queue.py", line 168, in get
self.not_empty.wait()
File: "/usr/software/rats/bedrock/lib/python2.7/threading.py", line 340, in wait
waiter.acquire()