Bug 1392392

Summary:	yum repolist -C takes longer than yum repolist
Product:	Red Hat Enterprise Linux 7	Reporter:	Oliver Ilian <oliver>
Component:	yum	Assignee:	Valentina Mukhamedzhanova <vmukhame>
Status:	CLOSED NOTABUG	QA Contact:	BaseOS QE Security Team <qe-baseos-security>
Severity:	unspecified	Docs Contact:
Priority:	unspecified
Version:	7.3	CC:	james.antill, mdomonko, oliver
Target Milestone:	rc
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Hardware:	Unspecified
OS:	Unspecified
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Fixed In Version:		Doc Type:	If docs needed, set a value
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Clone Of:		Environment:
Last Closed:	2016-11-24 17:40:46 UTC	Type:	Bug
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oVirt Team:	---	RHEL 7.3 requirements from Atomic Host:
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Description Oliver Ilian 2016-11-07 12:32:35 UTC

Description of problem:
If you try to get a repolist via "yum repolist" it takes longer to display the repos from the cache than without the cache option

Version-Release number of selected component (if applicable):
yum-3.4.3-150.el7.noarch
yum-rhn-plugin-2.0.1-6.el7.noarch

Steps to Reproduce:
1. run "yum repolist" to ensure the repo is udpated
2. run: time yum repolist
output:
real	0m1.464s
user	0m0.350s
sys	0m0.061s

3.  run: time yum repolist -C
real	0m3.498s
user	0m3.300s
sys	0m0.157s


Actual results:
yum repolist -C takes 2.5 times the time of yum repolist to display the output of the repo list

Expected results:
yum repolist -C should be much faster than yum repolist

Additional info:
The repolist contains of:
17 Satellite channels
7 yum repos

Comment 2 Michal Domonkos 2016-11-22 12:22:20 UTC

I can't reproduce this.  I'm getting roughly the same times for both with and without -C (it shouldn't be that much faster with -C anyway).

Do you still experience this?  If so, could you please run:

1) yum clean all
2) yum repolist
3) yum repolist --verbose and attach the output
4) yum repolist -C --verbose and attach the output

Comment 3 Oliver Ilian 2016-11-22 15:54:30 UTC

Created attachment 1222756 [details]
yum repolist

Comment 4 Oliver Ilian 2016-11-22 15:55:03 UTC

Created attachment 1222757 [details]
yum repolist -C

Comment 5 Oliver Ilian 2016-11-22 15:58:45 UTC

I have found the reason for the delay. If I only have satellite channels , yum repolist -C is double as fast as yum repolist .

If I add a local yum repo additional to the satellite channels, the output looks really strange when using the -C option, and the duration is double as long as yum repolist (see output in attachment)

Comment 8 Michal Domonkos 2016-11-22 16:27:57 UTC

Thanks for the data, I'll take a look.