Bug 40136

Summary:	index.json.gz is downloaded multiple times
Product:	UCS	Reporter:	Dirk Wiesenthal <wiesenthal>
Component:	App Center	Assignee:	Dirk Wiesenthal <wiesenthal>
Status:	CLOSED FIXED	QA Contact:	Felix Botner <botner>
Severity:	normal
Priority:	P5	CC:	best, gohmann, klaeser, walkenhorst
Version:	UCS 4.1
Target Milestone:	UCS 4.1-0-errata
Hardware:	Other
OS:	Linux
What kind of report is it?:	---	What type of bug is this?:	---
Who will be affected by this bug?:	---	How will those affected feel about the bug?:	---
User Pain:		Enterprise Customer affected?:
School Customer affected?:		ISV affected?:
Waiting Support:		Flags outvoted (downgraded) after PO Review:
Ticket number:		Bug group (optional):
Max CVSS v3 score:

Description Dirk Wiesenthal

2015-11-30 22:39:02 CET

Btw. can't we store the E-Tag and make conditional HTTP requests?

+++ This bug was initially created as a clone of Bug #39693 +++

I've changed in one App Center session the autostart behavior for a Docker App:
 - Opening App details
 - changing autostart
 - apply
 - opening App details
 - changing autostart back
 - apply

It looks like the index.json.gz was downloaded two times and a lot of Apps are loaded and unloaded. The logfile part is not from the whole session, only from the actions described above.

Comment 1 Dirk Wiesenthal

2015-11-30 23:45:35 CET

Fixed in
  univention-appcenter 5.0.19-18.77.201511302249

/var/cache/univention-appcenter/.etags added. Keeps track of other supra files and does not download it again in case of 304.

Comment 2 Felix Botner

2015-12-07 12:24:27 CET

... [   DEBUG]: UCS Version is '4.1'
... [    INFO]: Downloading "https://appcenter.software-univention.de/meta-inf/4.1/index.json.gz"...
... [   DEBUG]:   ... Not Modified
... [    INFO]: Downloading "https://appcenter.software-univention.de/meta-inf/4.1/index.json.gz.gpg"...
... [   DEBUG]:   ... Not Modified
... [    INFO]: Downloading "https://appcenter.software-univention.de/meta-inf/categories.ini"...
... [   DEBUG]:   ... Not Modified
... [    INFO]: Downloading "https://appcenter.software-univention.de/meta-inf/rating.ini"...
... [   DEBUG]:   ... Not Modified

modified index.json.gz in /var/cache/univention-appcenter/.etags

... [   DEBUG]: UCS Version is '4.1'
... [    INFO]: Downloading "https://appcenter.software-univention.de/meta-inf/4.1/index.json.gz"...
... [    INFO]: Downloading "https://appcenter.software-univention.de/meta-inf/4.1/index.json.gz.gpg"...
... [   DEBUG]:   ... Not Modified
... [    INFO]: Downloading "https://appcenter.software-univention.de/meta-inf/categories.ini"...
... [   DEBUG]:   ... Not Modified
... [    INFO]: Downloading "https://appcenter.software-univention.de/meta-inf/rating.ini"...
... [   DEBUG]:   ... Not Modified

removed /var/cache/univention-appcenter/.etags

... [   DEBUG]: UCS Version is '4.1'
... [    INFO]: Downloading "https://appcenter.software-univention.de/meta-inf/4.1/index.json.gz"...
... [    INFO]: Downloading "https://appcenter.software-univention.de/meta-inf/4.1/index.json.gz.gpg"...
... [    INFO]: Downloading "https://appcenter.software-univention.de/meta-inf/categories.ini"...
... [    INFO]: Downloading "https://appcenter.software-univention.de/meta-inf/rating.ini"...

OK - YAML

Comment 3 Janek Walkenhorst

2015-12-09 16:47:12 CET

<http://errata.software-univention.de/ucs/4.1/27.html>