[Varnish] #1781: Error with gzip content on Varnish4

[Varnish]

#1781: Error with gzip content on Varnish4
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 Reporter:  llavaud       |       Owner:
     Type:  defect        |      Status:  new
 Priority:  normal        |   Milestone:
Component:  varnishd      |     Version:  4.1.0-TP1
 Severity:  major         |  Resolution:
 Keywords:  gzip corrupt  |
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Comment (by martin):

 Hi, and thanks for the detailed bug report. My attempts at reproducing the
 problem though has so far been unsuccessful. As it looks like you can
 easily reproduce the issue, I wondered if I could ask you to redo it once
 more.

 What I notice in the logs you attached is that the objects that is
 attempted stitched together appears to be empty objects. Or at least they
 end up producing zero bytes worth of payload to the final result. This is
 contrary to the logs from Varnish 3 where things are working. So likely
 something went wrong during the fetch into cache of the numerous ESI
 fragments. In your log though most of these fragments are already in the
 cache, so they are cache HITs and the logs thus won't show the steps to
 fetch them.

 Could I ask you to please redo the test on Varnish 4, with the same
 logging as before, but make sure that the cache is completely clean at the
 time you run it? (e.g. just started). This would allow us to see the
 nature of the objects as they enter the cache (e.g. if they are gzip'ed
 before entering or gziped by Varnish, etc.)

 Regards,
 Martin Blix Grydeland

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Ticket URL: <https://www.varnish-cache.org/trac/ticket/1781#comment:1>
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