Bug 183654 - anaconda http installation downloading RPMs *twice*
anaconda http installation downloading RPMs *twice*
Product: Fedora
Classification: Fedora
Component: anaconda (Show other bugs)
All Linux
medium Severity medium
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Assigned To: Chris Lumens
Mike McLean
Depends On:
Blocks: FC5Target
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Reported: 2006-03-02 10:19 EST by Frank Ch. Eigler
Modified: 2007-11-30 17:11 EST (History)
0 users

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Fixed In Version:
Doc Type: Bug Fix
Doc Text:
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Clone Of:
Last Closed: 2006-04-12 14:15:01 EDT
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RHEL 7.3 requirements from Atomic Host:
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Description Frank Ch. Eigler 2006-03-02 10:19:28 EST
Description of problem:
Looking at the web server logs, and at tcpdump packet dumps, it seems
that during the main RPM-by-RPM installation phase, anaconda is requesting
each RPM *twice*.  It doesn't use HEAD or get a partial copy - it GETs the
whole darned RPM each time.
Comment 1 Jeremy Katz 2006-03-02 14:11:29 EST
It should be just doing byte-ranges to get the header for the first stage.

What web server are you using?
Comment 2 Frank Ch. Eigler 2006-03-02 14:28:17 EST
The web server runs apache 2.0.53-3.4.legacy with a customized configuration. 
The byte range makes sense, however in the tcpdump packets, I recall no sign of
the Range:-related headers.  In case a web server doesn't support byte ranges
(for whatever reason), do you think it is reasonable for anaconda/urlgrabber to
request two copies?
Comment 3 Chris Lumens 2006-03-13 14:29:29 EST
Can you attach some of your web server logs or tcpdump output?
Comment 4 Frank Ch. Eigler 2006-03-13 14:44:13 EST
The web server logs simply indicate consecutive identical downloads:

dhcp7.elastic.org [] - - [02/Mar/2006:11:52:36 -0500] "GET
/%7Efche/FC5/Fedora/RPMS/xorg-x11-drv-sis- HTTP/1.1" 200
289210 "-" "urlgrabber/2.9.6"
dhcp7.elastic.org [] - - [02/Mar/2006:11:52:37 -0500] "GET
/%7Efche/FC5/Fedora/RPMS/xorg-x11-drv-sis- HTTP/1.1" 200
289210 "-" "urlgrabber/2.9.6"

Searching backward through the logs, I see when the range query was done during
the planning stage:

dhcp7.elastic.org [] - - [02/Mar/2006:10:04:22 -0500] "GET
/%7Efche/FC5/Fedora/RPMS/xorg-x11-drv-sisusb- HTTP/1.1" 206
3558 "-" "urlgrabber/2.9.6"

The same pattern appears for every RPM installed, starting libgcc-4.1-0.27.
Comment 5 Chris Lumens 2006-04-12 14:15:01 EDT
Yep, we certainly were downloading each package twice.  Fixed in Rawhide. 
Thanks for the report.

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