Updating from 2.0.5 to 3.0.0 - some questions

[Jim Hayter]

Thank you both for your responses.

The list of parameter and syntax changes at xcir.net were very helpful.

Lee, I appreciate the warning about the headers.  I was already
worried about that as I had to build 2.0.5 with
'--with-max-header-fields=200' due to the amount of headers our pages
sometimes use.

Thanks again,
Jim

On Fri, Feb 17, 2012 at 11:44 PM, Lee Trout <lee at leetrout.com> wrote:
> Jim,
>
> Make sure you adjust the new run time http_req_hdr_len and http_resp_hdr_len
> if you're site (or clients) send large headers. We discovered that our
> headers were averaging 8-12kb which is 2-3x the default 4096 bytes.
>
> That was a tricky one for us to sort out since only certain clients had the
> large cookie headers and the 413 errors were intermittent in varnishlog.
>
> Lee
>
>
> 2012/2/17 kokoniimasu <kokoniimasu at gmail.com>
>>
>> Hi Jim,
>>
>> you're working varnish is 2.0.5? 2.1.5?
>>
>> if varnish is 2.0.X. refer to this url.(sorry Japanese. but I put an
>> English comment)
>>
>>
>>  http://wiki.xcir.net/index.php?title=Versuin2.0.x%E2%86%922.1.x%E3%81%B8%E3%81%AEVUP
>>
>> --
>> Syohei Tanaka(@xcir)
>> http://xcir.net/
>>
>> (:3[__])
>>
>>
>> 2012年2月18日2:37 Jim Hayter <jim.hayter at gmail.com>:
>> > I am working on upgrading from Varnish 2.0.5 running on Ubuntu 9.10 to
>> > Varnish 3.0.0 running on Ubuntu 11.10.
>> >
>> > I have a few questions based on my reading of
>> > https://www.varnish-cache.org/trac/browser/doc/changes.rst
>> >
>> > 1) Changes from 2.1.5 to 3.0 beta 1 states:
>> >
>> >   - The -l (shared memory log file) argument has been changed, please
>> > see the varnishd manual for the new syntax.
>> >     'man varnishd' for 2.0.5 states:
>> >
>> >     -l shmlogsize
>> >                 Specify size of shmlog file.  Scaling suffixes like 'k',
>> > 'm'
>> >                 can be used up to (e)tabytes.  Default is 80 Megabytes.
>> >                 Specifying less than 8 Megabytes is unwise.
>> >
>> >    'man varnishd' for 3.0.0 states the same thing.  And it appears to
>> > be working.  What changed?
>> >
>> >
>> > 2) I'm also a bit confused by this code in vcl_fetch:
>> >
>> >    if (beresp.ttl <= 0s ||
>> >        beresp.http.Set-Cookie ||
>> >        beresp.http.Vary == "*") {
>> >        /*
>> >         * Mark as "Hit-For-Pass" for the next 2 minutes
>> >         */
>> >        set beresp.ttl = 120 s;
>> >        return (hit_for_pass);
>> >    }
>> >
>> >    What is the purpose of "set beresp.ttl = 120 s;" ?  So, the
>> > purpose is to mark as "Hit-For-Pass" for 2 minutes, but why is this
>> > done (what does it accomplish)?
>> >
>> > 3) I've noted that a number of the parameter values I used to set have
>> > become defaults.  I also noted the change to make thread_pool_min and
>> > thread_pool_max agree better.  Aside from these and some other changes
>> > (purge to ban, obj to beresp), are there particular changes I should
>> > look at closely to avoid problems when I update?
>> >
>> > 4) Is there additional doc I should review (besides
>> > https://www.varnish-cache.org/trac/browser/doc/changes.rst) that would
>> > help me avoid problems and understand what has changed?
>> >
>> > Thanks for any suggestions.
>> >
>> > Jim
>> >
>> > _______________________________________________
>> > varnish-misc mailing list
>> > varnish-misc at varnish-cache.org
>> > https://www.varnish-cache.org/lists/mailman/listinfo/varnish-misc
>>
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