[Varnish] #1396: Assert error in VGZ_NewGzip(), cache_gzip.c line 209: Condition(Z_OK == i) not true.

[Varnish]

#1396: Assert error in VGZ_NewGzip(), cache_gzip.c line 209: Condition(Z_OK == i)
not true.
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 Reporter:  geoff     |       Owner:
     Type:  defect    |      Status:  new
 Priority:  normal    |   Milestone:
Component:  varnishd  |     Version:  3.0.3
 Severity:  major     |  Resolution:
 Keywords:  gzip      |
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Comment (by geoff):

 Just realized that there's no reliable way to reproduce this, since the
 failure came from compression -- preparing a response with a gzipped body.

 Very likely it was a low memory situation -- zlib couldn't get enough
 memory to compress. To my knowledge it hasn't happened again at the site
 since the incident reported on November 2013.

 I still think that Varnish should recover more gracefully when that
 happens, by sending a 503 error rather than crashing with an assertion. I
 wouldn't mind working up a patch, but how would we test it?

-- 
Ticket URL: <https://www.varnish-cache.org/trac/ticket/1396#comment:4>
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