void replica::handle_remote_failure(partition_status st, const end_point& node, int error)
{
ddebug(
"%s: handle remote failure error %u, status = %s, node = %s:%d",
name(),
error,
enum_to_string(st),
node.name.c_str(), static_cast<int>(node.port)
);
dassert (status() == PS_PRIMARY, "");
dassert(node != primary_address(), "");
switch (st)
{
case PS_SECONDARY:
dassert (_primary_states.check_exist(node, PS_SECONDARY), "");
{
configuration_update_request request;
request.node = node;
request.type = CT_DOWNGRADE_TO_INACTIVE;
request.config = _primary_states.membership;
downgrade_to_inactive_on_primary(request);
}
break;
case PS_POTENTIAL_SECONDARY:
// potential secondary failure does not lead to ballot change
// therefore, it is possible to have multiple exec here
if (_primary_states.learners.erase(node) > 0)
{
if (_primary_states.check_exist(node, PS_INACTIVE))
_primary_states.statuses[node] = PS_INACTIVE;
else
_primary_states.statuses.erase(node);
}
break;
case PS_INACTIVE:
case PS_ERROR:
break;
default:
dassert (false, "");
break;
}
}
void replica::handle_remote_failure(partition_status st, ::dsn::rpc_address node, error_code error)
{
derror(
"%s: handle remote failure error %s, status = %s, node = %s",
name(),
error.to_string(),
enum_to_string(st),
node.to_string()
);
error.end_tracking();
dassert (status() == PS_PRIMARY, "");
dassert (node != _stub->_primary_address, "");
switch (st)
{
case PS_SECONDARY:
dassert (_primary_states.check_exist(node, PS_SECONDARY), "");
{
configuration_update_request request;
request.node = node;
request.type = CT_DOWNGRADE_TO_INACTIVE;
request.config = _primary_states.membership;
downgrade_to_inactive_on_primary(request);
}
break;
case PS_POTENTIAL_SECONDARY:
// potential secondary failure does not lead to ballot change
// therefore, it is possible to have multiple exec here
_primary_states.learners.erase(node);
_primary_states.statuses.erase(node);
break;
case PS_INACTIVE:
case PS_ERROR:
break;
default:
dassert (false, "");
break;
}
}
void replica::on_config_proposal(configuration_update_request& proposal)
{
check_hashed_access();
ddebug(
"%s: on_config_proposal %s for %s",
name(),
enum_to_string(proposal.type),
proposal.node.to_string()
);
if (proposal.config.ballot < get_ballot())
{
dwarn(
"%s: on_config_proposal is out-dated, %lld vs %lld",
name(),
proposal.config.ballot,
get_ballot()
);
return;
}
if (_primary_states.reconfiguration_task != nullptr)
{
dinfo(
"%s: reconfiguration on the way, skip the incoming proposal",
name()
);
return;
}
if (proposal.config.ballot > get_ballot())
{
if (!update_configuration(proposal.config))
{
// is closing or update failed
return;
}
}
switch (proposal.type)
{
case CT_ASSIGN_PRIMARY:
case CT_UPGRADE_TO_PRIMARY:
assign_primary(proposal);
break;
case CT_ADD_SECONDARY:
add_potential_secondary(proposal);
break;
case CT_DOWNGRADE_TO_SECONDARY:
downgrade_to_secondary_on_primary(proposal);
break;
case CT_DOWNGRADE_TO_INACTIVE:
downgrade_to_inactive_on_primary(proposal);
break;
case CT_REMOVE:
remove(proposal);
break;
default:
dassert (false, "");
}
}
