> Also, during the test, the status of various backend's change often between > OK to DOWN, > and then gets back to OK almost immediately: > > www-backend,nginx-3,0,0,0,10,30000,184,23843,96517588,,0,,27,0,0,180,DOWN > 1/2,1,1,0,7,3,6,39,,7,3,1,,220,,2,0,,37,L4CON,,0,0,184,0,0,0,0,0,,,,0,0,,,,,6,Out > of local source ports on the system,,0,2,3,92,
this error is curious with the type of traffic your generating! Maybe you should let HAProxy manage the source ports on behalf of the server. Try adding the "source 0.0.0.0:1024-65535" parameter in your backend description. > Please let me know if this can be fixed, as it might help performance even > more. > > In short, for small file sizes, haproxy results are *much* better than > running against a single > backend server directly (with some failures as shown above). For big files, > the numbers for > haproxy are slightly lower. devil might be in your sysctls. Baptiste
