varnish-bugs at varnish-cache
Mar 22, 2012, 5:47 AM
Views: 326
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#1112: Varnish delivers truncated files when serving from Tomcat7 Backend and ESI enabled
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#1112: Varnish delivers truncated files when serving from Tomcat7 Backend and ESI
enabled
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Reporter: derjohn | Type: defect
Status: new | Priority: normal
Milestone: | Component: build
Version: 3.0.2 | Severity: normal
Keywords: |
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Hello,
in our setup we have a varnish in front of several Tomcat7. When Tomcat7
delivers static content, it uses chunked tranfers.
We'hit by a bug in that combination. The user gets the static content
(e.g. jquery.js) and receives a 200 status, but the content sometimes (!)
is not transferred completely. E.G. there jquery.js get truncated after
some kilobytes. My observation was, that this happens mostly (only?) if
the backend is reused.
In the logs I see such error msgs, which correlate to the error:
19 Debug c Hit send timeout, wrote = 11680/21115; retrying
19 Debug c Write error, retval = -1, len = 9435, errno = Resource
temporarily unavailable
To test I use a simple script like that and look if the outputs is always
the same or not:
for i in $(seq 1 1000); do curl -s -x "" -k
'http://$HOST/...011_jquery-1.7.1.js' | md5sum ; done
I tried varnish 3.0.2 and some newer trunks, the effect is still the same.
The same setup runs with the same config with varnish2.1.5 fine. (I had to
adapt the config parts of ESI enabling, as the syntax changed from 2.x to
3.x).
rgds,
derjohn
--
Ticket URL: <https://www.varnish-cache.org/trac/ticket/1112>
Varnish <https://varnish-cache.org/>
The Varnish HTTP Accelerator
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#1112: Varnish delivers truncated files when serving from Tomcat7 Backend and ESI enabled
