def vote_using_majority(self,
remote_node,
proposal,
wait_for_global_commit=True):
# This function assumes that the proposal has just been proposed and
# that at most, only the proposer has already voted for it when
# proposing it
majority_count = int(len(self.get_active_members()) / 2 + 1)
for member in self.get_active_members():
if proposal.votes_for >= majority_count:
break
# If the proposer has already voted for the proposal when it
# was proposed, skip voting
if (proposal.proposer_id == member.member_id
and proposal.has_proposer_voted_for):
continue
response = member.vote(
remote_node,
proposal,
accept=True,
wait_for_global_commit=wait_for_global_commit,
)
assert response.status_code == http.HTTPStatus.OK.value
proposal.state = infra.proposal.ProposalState(
response.body["state"])
proposal.increment_votes_for()
if proposal.state is not ProposalState.Accepted:
raise infra.proposal.ProposalNotAccepted(proposal)
return proposal
def vote_using_majority(self,
remote_node,
proposal,
ballot,
wait_for_global_commit=True,
timeout=3):
response = None
if proposal.state != ProposalState.ACCEPTED:
active_members = self.get_active_members()
majority_count = int(len(self.get_active_members()) / 2 + 1)
for member in active_members:
if proposal.votes_for >= majority_count:
break
response = member.vote(remote_node, proposal, ballot)
if response.status_code != http.HTTPStatus.OK.value:
raise infra.proposal.ProposalNotAccepted(proposal)
proposal.state = infra.proposal.ProposalState(
response.body.json()["state"])
proposal.increment_votes_for(member.service_id)
if response is None:
if proposal.view is None or proposal.seqno is None:
raise RuntimeError(
"Don't know what to wait for - no target TxID")
seqno = proposal.seqno
view = proposal.view
else:
seqno = response.seqno
view = response.view
# Wait for proposal completion to be committed, even if no votes are issued
if wait_for_global_commit:
with remote_node.client() as c:
infra.commit.wait_for_commit(c, seqno, view, timeout=timeout)
if proposal.state == ProposalState.ACCEPTED:
proposal.set_completed(seqno, view)
else:
LOG.error(
json.dumps(self.get_proposal(remote_node,
proposal.proposal_id),
indent=2))
raise infra.proposal.ProposalNotAccepted(proposal)
return proposal
