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From Romain Manni-Bucau <rmannibu...@gmail.com>
Subject Re: HTTP Errors on Load-Balanced TomEE Servers
Date Mon, 03 Oct 2016 15:48:09 GMT
did you check your datasource pool too? default is pretty low and under
load you can just wait for the DB depending the app


Romain Manni-Bucau
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2016-10-03 17:11 GMT+02:00 Jlemoine <jlemoine@bcidaho.com>:

> Romain Manni-Bucau wrote
> > 2016-10-03 15:43 GMT+02:00 Jlemoine &lt;
>
> > jlemoine@
>
> > &gt;:
> >
> >> 1.  I'm not sure what a "very small timeout" would be.  I currently have
> >> the
> >> ajp connector and LB timeouts at 20 seconds.
> >>
> >
> > 1ms?
> >
> >> 2.  Yes, ajp does seem to keep threads open once created, which is where
> >> I
> >> think the problem was.  No new sockets available to open.  However, so
> >> far
> >> this has not happened on the TomEE side after I changed the LB method to
> >> Busyness and made the other changes to the ajp connectors that I
> >> mentioned
> >> in the first post.
> >>
> >>
> > this is weird, ajp perf boost comes normally from the binary protocol
> > usage
> > and connections staying open. Depends the setup for sure but if not used
> > wonder if you have any interest to use ajp.
> >
> >>
> >> --
> >> View this message in context: http://tomee-openejb.979440.
> >> n4.nabble.com/HTTP-Errors-on-Load-Balanced-TomEE-Servers-
> >> tp4680255p4680272.html
> >> Sent from the TomEE Users mailing list archive at Nabble.com.
> >>
>
> Yes Romain, from what I've researched what you're saying holds true.  But I
> had the ajp attributes at default and this bizarre behavior from the LB
> Request method was totally overloading an instance.
> <http://tomee-openejb.979440.n4.nabble.com/file/n4680275/Image4.png>
>
>
>
>
>
>
>
>
> This isn't really load balancing for us and any end-users attached to that
> "a" instance were locked up and unable to process data back to the
> database.
> I'm pretty sure I have this ironed out now but I won't know unless the
> Business wants to try out my config changes in Production.  Also, I'm still
> researching if there are other tuning options that I may need to try.
>
>
>
> --
> View this message in context: http://tomee-openejb.979440.
> n4.nabble.com/HTTP-Errors-on-Load-Balanced-TomEE-Servers-
> tp4680255p4680275.html
> Sent from the TomEE Users mailing list archive at Nabble.com.
>

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