On Aug 9, 2010, at 20:10 , Anoop Bhat wrote:
> Hi,
>
> We use centos here and for HA, we get piranha which I know is more difficult
> to support/get help for on this list but I'm hoping that someone can help me
> figure out why (only recently) we're seeing real servers go inactive from the
> LVS perspective.
>
> The real servers are all tomcat6 and running services that we use on 8080
> HTTP.
>
> Our lvs.cf shows
>
> send = "GET / HTTP/1.0\r\n\r\n"
> expect = ".*"
>
> Which should result in some sort of response (400 bad request) and it usually
> does.
>
> I'm wondering if we're testing it incorrectly or if there is a better way to
> test it?
>
> These are all VMs in a ESX cluster and we're using LVS-DR instead of NAT or
> TUN.
>
> My understanding is that if it's HTTP, the send/expect above should work just
> fine.
You may have encountered a bug that I've reported
4 years ago. I'm not sure if it has been fixed as
we've only tested Piranha for a few days and have
never used it since. Check the access and/or error
logs of your tomcats to see how the requests are
corrupted.
https://bugzilla.redhat.com/show_bug.cgi?id=199243
regards,
rainer
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