Thank you very much for your reply and subsequent work on this issue. For those who run into similar issues, the cause is the following bug:
http://bugs.squid-cache.org/show_bug.cgi?id=4492 <http://www.google.com/url?q=http%3A%2F%2Fbugs.squid-cache.org%2Fshow_bug.cgi%3Fid%3D4492&sa=D&sntz=1&usg=AFQjCNHxLMMy7H9BCp8Cu4-yItJLHWQ1zg> Alex has created a patch that fixes the issue. Thank you, -Masha On Mon, May 1, 2017 at 4:37 PM, Alex Rousskov <rousskov@measurement-factory. com> wrote: > On 05/01/2017 04:12 PM, Masha Lifshin wrote: > > > when I turn on icap, squid shuts down the connection early, > > without returning the body of the response. It seems it cannot read the > > content length header and that messes up both squid and icap. > > > 2017/04/28 08:11:47.297 kid1| 55,2| HttpHeader.cc(1483) > > httpHeaderNoteParsedEntry: cannot parse hdr field: 'Content-Length: 606' > > > These "cannot parse hdr field" lines is a sign of a minor accounting bug > (fixed in the latest Squid; v5 r15019). Do not worry about it -- it does > not affect Squid behavior beyond header statistics reporting. > > > > 2017/04/28 08:11:47.576 kid1| 93,3| > > Adaptation::Icap::Xaction::noteCommRead threw exception: garbage > > instead of CRLF line terminator > > This exception can explain your symptoms: Squid failed to parse some > portion of the ICAP response from your ICAP server. This is either a > Squid bug or an ICAP server bug. > > Please make sure your Squid v4 contains a fix for bug #4551: > > http://bugs.squid-cache.org/show_bug.cgi?id=4551 > > Squid v4.0.13 and newer should have that fix. If your Squid is v4.0.17 > then bug #4551 should be fixed, but perhaps there is another bug OR the > ICAP server itself is misbehaving. > > > > Or is there some disconnect about the 206 code from icap? > > The posted logs do not show enough info for me to pinpoint the problem. > Try replacing "93,3" with "93,9 74,9" in your debug_options. Is that > enough to get the ICAP server response logged? (I do not remember the > minimum set of debug_options necessary to accomplish that.) If you post > a new log, please attach (or post a link to) it instead of quoting it in > the email because email formatting often screws up important details. > > Alternatively, post a pcap-format capture of TCP packets between Squid > and ICAP server (but be careful with what you share on the list). > > > Cheers, > > Alex. > > >
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