def push():
try:
pack_tid = None # TODO
for tid in tid_list:
if tid in peer_tid_set:
peer_tid_set.remove(tid)
else:
t = dm.getTransaction(tid)
if t is None:
conn.send(
Errors.ReplicationError(
"partition %u dropped" % partition),
msg_id)
return
oid_list, user, desc, ext, packed, ttid = t
conn.send(
Packets.AddTransaction(tid, user, desc, ext,
packed, ttid, oid_list),
msg_id)
yield
conn.send(
Packets.AnswerFetchTransactions(pack_tid, next_tid,
peer_tid_set), msg_id)
yield
except (weakref.ReferenceError, ConnectionClosed):
pass
def push():
try:
pack_tid = None # TODO
for tid in tid_list:
if tid in peer_tid_set:
peer_tid_set.remove(tid)
else:
t = dm.getTransaction(tid)
if t is None:
conn.send(
Errors.ReplicationError(
"partition %u dropped" % partition),
msg_id)
return
oid_list, user, desc, ext, packed, ttid = t
# Sending such packet does not mark the connection
# for writing if there's too little data in the buffer.
conn.send(
Packets.AddTransaction(tid, user, desc, ext,
bool(packed), ttid,
oid_list), msg_id)
# To avoid delaying several connections simultaneously,
# and also prevent the backend from scanning different
# parts of the DB at the same time, we ask the
# scheduler not to switch to another background task.
# Ideally, we are filling a buffer while the kernel
# is flushing another one for a concurrent connection.
yield conn.buffering
conn.send(
Packets.AnswerFetchTransactions(pack_tid, next_tid,
peer_tid_set), msg_id)
yield
except (weakref.ReferenceError, ConnectionClosed):
pass