[squid-users] WARNING: Ignoring cache entry due to a SIZE MISMATCH

[Heiler Bemerguy]

Em 17/02/2017 09:44, Amos Jeffries escreveu:
> On 16/02/2017 10:40 a.m., Heiler Bemerguy wrote:
>> Is it normal, on every restart?
>>
> Well, this is a check that is only performed on restart. So in a way it
> is "normal" that it occurs on restart. It should not happen at all
> though. AFAIK, it is a sign of cache corruption...

Right. But cache corruption, by a hardware/disc error, can not be. These 
disks were formatted and tested, 3 times already, while trying to solve 
this errors and some other stuff.


>> maximum_object_size 2 GB
>> cache_dir rock /cache  120000 min-size=0 max-size=12288 slot-size=12288 max-swap-rate=250 swap-timeout=350
>> cache_dir rock /cache2 120000 min-size=10240 max-size=65536 max-swap-rate=250 swap-timeout=360
>>
> These caches cannot store objects larger than 64KB. So where do you
> expect the 64KB thru 2GB objects to go?

There are another cache_dirs just below these, like:
cache_dir rock /cache3 120000 min-size=65537 max-size=262144 
max-swap-rate=250 swap-timeout=380
cache_dir rock /cache4 120000 min-size=262145 max-swap-rate=250 
swap-timeout=500


>
>> 2017/02/15 18:38:50 kid7| WARNING: Ignoring cache entry due to a SIZE
>> MISMATCH 5852!=5853
>> 2017/02/15 18:38:51 kid7| WARNING: Ignoring cache entry due to a SIZE
>> MISMATCH 6223!=6222
>> 2017/02/15 18:38:51 kid7| WARNING: Ignoring cache entry due to a SIZE
>> MISMATCH 4198!=4202
> ...
>
> That last line means the rock database contains an object of size 4198
> bytes, with 4202 bytes of data in it.
>
>   4202 > 4198. So 4 bytes of what? the next database slot? padding data?
>
>
> You have any custom patches applied to this Squid? what version is it?
>

No patches. Squid Cache: Version 4.0.18 configure options: 
'--enable-htcp' '--disable-maintainer-mode' 
'--disable-dependency-tracking' '--disable-wccp' '--disable-snmp' 
'--enable-inline' '--enable-async-io=32' '--enable-storeio=aufs,rock' 
'--enable-underscores' '--enable-removal-policies=lru,heap' 
'--enable-http-violations' '--disable-ident-lookups' 
'--with-large-files' '--enable-ssl' '--enable-ltdl-convenience' 
'--prefix=/usr' '--localstatedir=/var' '--libexecdir=/lib/squid' 
'--srcdir=.' '--datadir=/usr/share/squid' '--sysconfdir=/etc/squid' 
'--with-default-user=proxy' '--with-logdir=/var/log' 
'--with-pidfile=/var/run/squid.pid' '--with-filedescriptors=16384' 
'--with-aufs-threads=32' '--disable-translation'

My only */Suspicion/* is the different slot-size from kid7 (/cache). But 
these messages also appears on kid8 (/cache2), although  with much, MUCH 
less frequency..... (while rebuilding/restarting, always)

-- 
Best Regards,

Heiler Bemerguy
Network Manager - CINBESA
55 91 98151-4894/3184-1751

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