proxied requests hang when DNS response has wrong ident

Jason Woods devel at
Mon Aug 18 12:45:46 UTC 2014

On 18 Aug 2014, at 12.05, Valentin V. Bartenev <vbart at> wrote:

> On Monday 18 August 2014 11:40:07 Jason Woods wrote:
> [..]
>> I'm experiencing a similar issue.
>> I get a couple of ident mismatch errors in the error log,
>> and then gradually over time I begin to see thousands of
>> ESTABLISHED connections stuck with no activity.
>> Eventually worker_connections is exhausted. I believe it
>> could be related to this.
>> I'm using package nginx-1.6.1-1.el6.ngx.x86_64, which is
>> the latest stable. Has this fix been ported to 1.6.x stable
>> yet?
> No, it hasn't.  You should use mainline version of nginx.
> wbr, Valentin V. Bartenev

There's the fear there are significant changes from 1.6 to 1.7 that may introduce other problems, and would need to go through some extensive testing before we can commit. Especially as the 1.6 is labelled "stable" and the 1.7 "mainline" (and not stable) - maybe these terms aren't meant to convey the meaning they appear to though. I'll start discussion about testing 1.7 though.

Any ETA on when this might be back-ported, if at all?
I guess a second question is when will 1.7 become the stable?

Sorry if you're the wrong person to ask! And thanks for being clear.


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