|
On Wed, Feb 23, 2005 at 03:19:02PM -0600, LVS@xxxxxxxxx wrote:
> Horms wrote:
>
> >On Mon, Feb 21, 2005 at 09:46:47PM -0600, Jeff Royal wrote:
> >
> >
> >>I've added an SSL server to my realserver list.
> >>Here is an example of my ldirectord.cf
> >>
> >># Global Directives
> >>checktimeout=20
> >>checkinterval=10
> >>logfile="/var/log/ldirectord.log"
> >>quiescent=no
> >>
> >># Virtual Server for HTTP
> >>virtual=192.168.22.41:80
> >> real=lweb1:80 masq
> >> real=lweb2:80 masq
> >> fallback=192.168.22.70:80
> >> service=http
> >> request="/us/index.jsp"
> >> receive="working"
> >> scheduler=wlc
> >> persistent=1800
> >> netmask=255.255.255.0
> >> protocol=tcp
> >> checktype=negotiate
> >>
> >># Virtual Server for HTTPS
> >>virtual=192.168.22.41:443
> >> real=lweb3:443 masq
> >> service=https
> >> request="/test.ipage"
> >> receive="working"
> >> scheduler=wlc
> >> persistent=1800
> >> protocol=tcp
> >> checktype=negotiate
> >>
> >>I can get to the server through https:// but the pages load very slowly
> >>(~2 minutes compared to 4 seconds if I go directly to the realserver
> >>address)
> >>
> >>I'm not sure where to start, as it works.
> >>
> >>
> >
> >Try using something like tcpdump or ethereal to trace the packets on the
> >network and see what is going on.
> >
> >
> >
> Thanks!!
> FIXED!!
>
> Looking at a tcpdump I was able to see that during the load of the page
> there were requests made to HTTP.
> Working with the developers we found some code that was hard coded to
> port 80. Removing that hard code the pages flew...
>
> Last question. There was a 20 second lag (looking at the tcpdump) each
> time one of these (http) requests were made.
> When one of these requests were made the LB had to switch to another
> machine (as HTTP was not sent to this machine).
> Was the fact that we have a persistence setting causing the 20 second
> lag or was the delay strictly in our Java application?
> I ask because I don't know if the 20 second "checktimeout" setting was
> just a coincidence.
I suspect that the 20s timeout is the cause of the 20s frequency
of requests. If you really want to know you could try adding some
extra debugging statements to ldirectord.
--
Horms
|
