Bug 2058477

Summary:	Failed Delta RPMs increased 372.7 MB of updates to 444.2 MB (16.1% wasted)
Product:	[Fedora] Fedora	Reporter:	cornel panceac <cpanceac>
Component:	deltarpm	Assignee:	Marek Blaha <mblaha>
Status:	CLOSED EOL	QA Contact:	Fedora Extras Quality Assurance <extras-qa>
Severity:	unspecified	Docs Contact:
Priority:	unspecified
Version:	35	CC:	daniel.mach, jmracek, jonathan, jrohel, mblaha, mhatina, packaging-team-maint, pkratoch, rpm-software-management, vmukhame
Target Milestone:	---	Keywords:	Reopened, Triaged
Target Release:	---
Hardware:	Unspecified
OS:	Unspecified
Whiteboard:
Fixed In Version:		Doc Type:	If docs needed, set a value
Doc Text:		Story Points:	---
Clone Of:		Environment:
Last Closed:	2022-12-13 16:47:04 UTC	Type:	Bug
Regression:	---	Mount Type:	---
Documentation:	---	CRM:
Verified Versions:		Category:	---
oVirt Team:	---	RHEL 7.3 requirements from Atomic Host:
Cloudforms Team:	---	Target Upstream Version:
Embargoed:

Description cornel panceac 2022-02-25 05:42:39 UTC

Description of problem:
Delta RPM sometimes dereases the download by a few hundred KB for a hundred megabytes download (Around 0.01% improve, at the expense of additional CPU power). But some other times it makes things worse, due to failed delta RPMs.
How can delta RPMs be disabled?

Version-Release number of selected component (if applicable):
any

How reproducible:
depends on chance.

Steps to Reproduce:
1.
2.
3.

Actual results:


Expected results:


Additional info:

Comment 1 Marek Blaha 2022-02-25 06:59:56 UTC

Two options:

- disable delta rpm in /etc/dnf/dnf.conf by adding `deltarpm=0` - see man dnf.conf

- uninstall deltarpm package

Comment 2 cornel panceac 2022-03-06 11:28:17 UTC

Thank you Marek.
Re-assigning to deltarpm. 
The problem is: deltarpm is not working as expected, and the fix should be distribution-wide, in my opinion, instead of each affected user doing one the above two things.
What's your opinion?

Comment 3 Marek Blaha 2022-03-07 07:32:17 UTC

To be honest, I only answered the question how delta rpm could be disabled.
I did some investigation and it looks like there is a bug causing deltarpm to fail - https://bugzilla.redhat.com/show_bug.cgi?id=1873876
This bug might be a duplicate of the mentioned one, but without more information it's hard to tell.

Comment 4 Ben Cotton 2022-11-29 17:57:52 UTC

This message is a reminder that Fedora Linux 35 is nearing its end of life.
Fedora will stop maintaining and issuing updates for Fedora Linux 35 on 2022-12-13.
It is Fedora's policy to close all bug reports from releases that are no longer
maintained. At that time this bug will be closed as EOL if it remains open with a
'version' of '35'.

Package Maintainer: If you wish for this bug to remain open because you
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to a later Fedora Linux version.

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able to fix it before Fedora Linux 35 is end of life. If you would still like 
to see this bug fixed and are able to reproduce it against a later version 
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prior to this bug being closed.

Comment 5 Ben Cotton 2022-12-13 16:47:04 UTC

Fedora Linux 35 entered end-of-life (EOL) status on 2022-12-13.

Fedora Linux 35 is no longer maintained, which means that it
will not receive any further security or bug fix updates. As a result we
are closing this bug.

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