Accessing reference on client machine

[Eyal Cohen]

Hey All,

This is the first time I'm writing on this group.

I have being using rpyc for more that 3 years now. It is a great package!!!

I encounter a scenario that is stuck in a deadlock and I would like to know what am I doing wrong here.

I'm using rpyc 3.2.3 with python 2.7.8.

This is the code that reproduce the issue:

script file:

>> cat /tmp/script_lock.py

from threading import Lock

from time import sleep

lock = Lock()

def deadlock_repro(a):

    print type(a)

    with lock: # Thread-2 will be lock here 

        print 'going to sleep'

        sleep(1)

        print 'trying to access a'

        print a # Thread-1 will be lock here

        print 'finish'

------ 

open a new rpyc_classic.py on port 5555:

>> rpyc_classic.py -p 5555

-----

running the following python code:

>> python

from threading import Thread

import rpyc

conn = rpyc.classic.connect('localhost', 5555)

conn.modules["sys"].path += ["/tmp"]

t1 = Thread(target=conn.modules["script_lock"].deadlock_repro, args=(range(10),) )

t2 = Thread(target=conn.modules["script_lock"].deadlock_repro, args=(range(10),) )

t1.start()

t2.start()

t1.join() # this will never join 

-----

here is an output example of the rpyc_classic:

[root@clx-0128 tmp]# rpyc_classic.py -p 5555

INFO:SLAVE/5555:server started on [0.0.0.0]:5555

INFO:SLAVE/5555:accepted ('127.0.0.1', 33495)

INFO:SLAVE/5555:welcome ('127.0.0.1', 33495)

<netref class '__builtin__.list'>

going to sleep

trying to access a

<netref class '__builtin__.list'>

Can someone please explain me what I'm doing wrong here?

Thanks

Eyal Cohen.