Hello,
Is there a possibility to check if the HttpUpstreamFairModule is
installed
right on our Nginx setup?
When we make a new setup to test the fair module it doesnt load balance.
We
are using the fair module in combination with ip hash to keep the
sessions
alive.
Weve tested it from several ip spaces but we always are thrown to the
same
web server.
Config upstream:
upstream testvip {
fair default; #default weighted least-connection round robin
#ip_hash;
server xxx.xxx.xxx.xxx max_fails=5 fail_timeout=20s weight=3;
server xxx.xxx.xxx.xxx max_fails=5 fail_timeout=20s weight=1 ;
} #end upstream
Any ideas?
Thank you
Grt
Jaap
Fair ModuleHi,
Is there a possibility to check if the HttpUpstreamFairModule is installed
right on our Nginx setup?
You can check compile-time options with “nginx -V”. They should contain
something like “–add-module=/path/to/fair” if you’ve got
“upstream_fair”
installed… But you’ve got it, otherwise nginx would complain about
unknown
“fair” directive.
We are using the fair module in combination with ip hash to keep the
sessions alive.
You can’t do that. Load balancers (“ip_hash” & “fair”) are exclusive, so
you
can’t combine them.
} #end upstream
Any ideas?
I don’t recall details (maybe Grzegorz will chime in), but I believe
that
“upstream_fair” will try to return idle backend before falling back to
least-connection round robin, which means that in limited testing
environment with single connection, you would be always redirected to
your
first backend.
Best regards,
Piotr S. < [email protected] >