80 is the default unless specified for each node, ea;
upstream myLoadBalancer {
server 127.0.0.1:9001 weight=1 fail_timeout=5;
server 127.0.0.1:9002 weight=1 fail_timeout=5;
}
upstream myLoadBalancer {
server 127.0.0.1:9001 weight=1 fail_timeout=5;
server 127.0.0.1:9002 weight=1 fail_timeout=5;
}