Recently I am working on LBaaS service. When I set up a pool and it serves, the haproxy process randomly returns 503:
503 Service Unavailabe
No server is available to handle this request
And I am pretty sure when this problrm happened, member servers are up.
Anyone can help me abt this problem?
PS:when i first build members in the loadbalancer,the status is active, however,it will turn to inactive in a few minutes. And I find a way to resolve this via executing
echo -e 'HTTP/1.0 200 OK\r\n\r\n<serverX>' | nc -l -p
then the status of members turns to active.