Hi Jay,
Am 16.08.2016 um 17:20 schrieb Jay Modha:
We are in the process of upgrading to 1.5.x however when we deploy our
app using 1.5.8 the GSS keepalive no longer detects any nodes as being
alive and ultimately results in DNS error when some tries to access
the application via the DNS.
tcpdump both the working 1.4 keepalive and the non-working 1.5
keepalive. The 2 network captures will show whats happening.
The major change between 1.4 and 1.5 is the default http-mode. Unless
explicitly configured, keep-alive is now enabled on 1.5. If GSS (and/or
your backend) is buggy that may cause issues. Configure "option
http-tunnel" [1] in the default section to return the 1.4 default, which
is tunnel mode.
Regarding the upgrade per-se, I would recommend evaluating 1.6.8 instead
- there are no open issue in the 1.6 stable branch and it would will be
supported for a longer time. Also see Willy's announcement [2]. It has
nothing to do with your problem though.
Regards,
Lukas
[1]
http://cbonte.github.io/haproxy-dconv/1.5/configuration.html#option%20http-tunnel
[2] https://www.mail-archive.com/[email protected]/msg23513.html
