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Re: open failed to shm_open(/squid-ssl_session_cache.shm)

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On 07/03/2017 09:37 AM, erdosain9 wrote:

> What's going on here?

There are two problems. One probably exposes the other:


> FATAL: Too many queued negotiateauthenticator requests
> Squid Cache (Version 3.5.20): Terminated abnormally.

Your Squid has received more concurrent negotiateauthenticator requests
than it is configured to handle. FWIW, Squid v4+ can be configured to
drop extra requests (on-persistent-overload=ERR) instead of killing the
affected worker (on-persistent-overload=die).


> FATAL: Ipc::Mem::Segment::open failed to
> shm_open(/squid-ssl_session_cache.shm): (2) No such file or directory

Your Squid worker failed to restart after the previous failure. Most
likely, there were race conditions (or bugs) during initial Squid
startup that erased some shared memory segments prematurely (or
needlessly). These problems have been fixed in Squid v4+.


HTH,

Alex.
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