Hi.
On 28.09.2016 0:29, Alex Rousskov wrote:
Since you can reproduce this, I suggest collecting ALL,9 log for the
stuck master transaction:
http://wiki.squid-cache.org/SquidFaq/BugReporting#Debugging_a_single_transaction
If collecting a debugging trace is impossible for some reason, then
collect the corresponding TCP packets on the Squid to origin server link
and post actual packets (not screenshots of packet summaries) from both
connections. The debugging trace will most likely have the answer. The
packet trace might have the answer.
You may need to change user credentials for this test or after posting
the details requested above.
Well... I cannot reproduce it on purpose, I'm just saying it is
self-reproducible for almost a year, in certain moments of time.
Collecting a debug trace isn't hard by itself, but I'm pretty sure the
restart will clear this state for a current machine (I guess squid
didn't get a way to increase debug level on the fly ? at least I'm not
aware of it; so I will need to restart it to set ALL,9), and I'll have
to run with ALL,9 for quite some time, which is, obviously, not good for
production, because it will create enormous amounts of logging in cache
log. So I will post the tcpdump containing both exchanges, and if it
will be still unclear I'll think about running in a debug mode.
Thanks.
Eugene.
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