LBRYCommunity/lbrycrd
1
0
Fork 0
Code Issues 29 Pull requests 1 Projects Releases 32 Packages Wiki Activity

[qa] Handle disconnect_node race

Browse source 
Several tests call disconnect_nodes() on each node-pair in rapid
succession, resulting in a race condition if a node disconnects a peer
in-between the calculation of the nodeid's to disconnect and the
invocation of the disconnectnode rpc call.  Handle this.
This commit is contained in:
Suhas Daftuar 2018-05-09 13:14:21 -04:00
parent 08c1caf863
commit 09c6699900
1 changed files with 8 additions and 1 deletions
Show stats Download patch file Download diff file Expand all files Collapse all files

9
test/functional/test_framework/util.py
View file

@ -351,7 +351,14 @@ def set_node_times(nodes, t):
def disconnect_nodes(from_connection, node_num):
for peer_id in [peer['id'] for peer in from_connection.getpeerinfo() if "testnode%d" % node_num in peer['subver']]:
from_connection.disconnectnode(nodeid=peer_id)
try:
from_connection.disconnectnode(nodeid=peer_id)
except JSONRPCException as e:
# If this node is disconnected between calculating the peer id
# and issuing the disconnect, don't worry about it.
# This avoids a race condition if we're mass-disconnecting peers.
if e.error['code'] != -29: # RPC_CLIENT_NODE_NOT_CONNECTED
raise
# wait to disconnect
wait_until(lambda: [peer['id'] for peer in from_connection.getpeerinfo() if "testnode%d" % node_num in peer['subver']] == [], timeout=5)