[squid-users] squid workers question

[Matus UHLAR - fantomas]

Hello,

I have installed squid 3.4.8 on linux 3.16/64bit (debian 8 / jessie version)

(I know it's old, but I prefer using distribution-provided SW unless it has
real problem distribution isn't able to fix)

- does this version have known memory leaks?
http://www.squid-cache.org/Versions/v3/3.5/ChangeLog.txt
shows some leaks fixed but they all seem to be related to something we don't
use (certificated, Surrogate capability), unless the:

"Fix memory leak of HttpRequest objects" 
that is fixed in 3.5.16 applies to 3.4 too.


I configured rock store (for smaller files) and (later) standard aufs for others:

cache_dir rock /var/spool/squid3/rock 1024 max-size=32768
#cache_dir aufs /var/spool/squid3 8192 16 256 min-size=32769

are those correct values? (bug 3411 says something about 256B metadata)


logs said this:

2017/03/02 18:32:15 kid1| /var/spool/squid3 exists
...
2017/03/02 18:32:18 kid3| Swap maxSize 0 + 262144 KB, estimated 20164 objects
2017/03/02 18:32:18 kid2| Swap maxSize 1048576 + 262144 KB, estimated 100824 objects

- do I get it right that kid1 is the Master, kid2 is the disker for rock
   store and kid3 is the single worker process?


After first start I noticed crash:

2017/03/02 18:32:18 kid3| Max Mem  size: 262144 KB [shared]
2017/03/02 18:32:18 kid2| Max Mem  size: 262144 KB [shared]
2017/03/02 18:32:18 kid3| Max Swap size: 0 KB
2017/03/02 18:32:18 kid1| WARNING: disk-cache maximum object size is too large for mem-cache: 16384.00 KB > 32.00 KB
2017/03/02 18:32:18 kid2| Max Swap size: 1048576 KB
2017/03/02 18:32:18 kid3| Using Least Load store dir selection
2017/03/02 18:32:18 kid3| Set Current Directory to /var/spool/squid3
FATAL: Ipc::Mem::Segment::open failed to shm_open(/squid-cache_mem.shm): (2) No such file or directory

Squid Cache (Version 3.4.8): Terminated abnormally.
FATAL: Ipc::Mem::Segment::open failed to
shm_open(/squid-var.spool.squid3.rock.shm): (2) No such file or directory

Squid Cache (Version 3.4.8): Terminated abnormally.


... this happened in http://bugs.squid-cache.org/show_bug.cgi?id=3411
however that 

- restart with "workers 1" worked, but isn't that the default?
   or was the creash caused by something else?
(will try to replicate)



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Matus UHLAR - fantomas, uhlar at fantomas.sk ; http://www.fantomas.sk/
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