[Fix issue] Fix issue 1170 (#1171)

* API change of kvstore

* add demo for kvstore

* update

* remove duplicated log

* change queue size

* update

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* fix lint

* change name

* update

* fix lint

* update

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* change message queue size to a python argument

* change default queue size to 2GB

* OMP_NUM_THREADS=1

* add multiple NICs support for kvstore

* test

* fix lint

* update

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* fix lint

* fix lint

* update

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* fix lint

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* fix lint

python/dgl/network.py

@@ -2,7 +2,6 @@
 from __future__ import absolute_import
 
 import time
-import signal
 from enum import Enum
 from collections import namedtuple
 
@@ -18,13 +17,6 @@ _init_api("dgl.network")
 
 _WAIT_TIME_SEC = 3  # 3 seconds
 
-def keyboard_interrupt_handler(my_signal):
-    """Users can use [Ctl + C] to exit loop service
-    """
-    print("KeyboardInterrupt (ID: {}) has been caught. Cleaning up DGL ...".format(my_signal))
-    exit(0)
-
-signal.signal(signal.SIGINT, keyboard_interrupt_handler)
 
 def _network_wait():
     """Sleep for a few seconds