Bug 37381

Summary:	squid cache should be configured via ucr
Product:	UCS	Reporter:	Tobias Birkefeld <birkefeld>
Component:	Squid	Assignee:	Felix Botner <botner>
Status:	CLOSED FIXED	QA Contact:	Daniel Tröder <troeder>
Severity:	enhancement
Priority:	P5	CC:	ebersbach, gohmann, grandjean, michelsmidt, schwardt
Version:	UCS 3.2
Target Milestone:	UCS 4.1-4-errata
Hardware:	Other
OS:	Linux
What kind of report is it?:	Bug Report	What type of bug is this?:	2: Improvement: Would be a product improvement
Who will be affected by this bug?:	3: Will affect average number of installed domains	How will those affected feel about the bug?:	2: A Pain – users won’t like this once they notice it
User Pain:	0.069	Enterprise Customer affected?:
School Customer affected?:	Yes	ISV affected?:
Waiting Support:		Flags outvoted (downgraded) after PO Review:
Ticket number:		Bug group (optional):	Forked for project
Max CVSS v3 score:

Description Tobias Birkefeld

2014-12-17 18:15:35 CET

Squid can not be configured via ucr variable to use another cache directory or a smaller/bigger cache size. This would be nice and helpful in large environments.

ucr set squid/cache/size
ucr set squid/cache/l1_size
ucr set squid/cache/l2_size
ucr set squid/cache/directory

more info about cache_dir http://www.squid-cache.org/Doc/config/cache_dir/

Comment 1 Michael Grandjean

2016-08-22 15:10:12 CEST

Our default is still:

> cache_dir ufs /var/spool/squid3 256 16 256

Which means:
- "ufs" is the default Squid storage format
- /var/spool/squid3 will be used as cache directory
- the cache directory size is limited to 256 MB of disk space
- there will be 16 first-level subdirectories
- there will be 256 second-level subdirectories

256 MB doesn't seem much when it comes to web content nowadays. Every UCS@school slave I came across in the last weeks hit that limit (/var/spool/squid3 using around ~ 250 MB of disk space while the HIT rates in access.log were really low).

It would definitely help a lot if increasing the cache dir size would not require to fork the UCR template.

Comment 2 Felix Botner

2016-11-14 11:32:36 CET

added 
 squid/cache/format?ufs
 squid/cache/directory?/var/spool/squid3
 squid/cache/size?512
 squid/cache/l1_size?16
 squid/cache/l2_size?256

univention-squid.yaml 9.0.2-3.237.201611141120

merged to 4.2-0

Comment 3 Daniel Tröder

2016-11-16 15:40:40 CET

OK: code
OK: advisory
OK: manual tests
OK: merge to 4.2

Comment 4 Philipp Hahn

2016-11-23 14:34:18 CET

<http://errata.software-univention.de/ucs/4.1/332.html>