[axel-devel] [axel-Bugs][314231] wrong start byte for first chunk

[axel-bugs at alioth.debian.org]

axel-Bugs item #314231, was opened at 2013-05-02 16:20
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https://alioth.debian.org/tracker/?func=detail&atid=413085&aid=314231&group_id=100070

Status: Open
Priority: 3
Submitted By: Nobody (None)
Assigned to: Nobody (None)
Summary: wrong start byte for first chunk 


Initial Comment:
Anonymous message posted by framstag at rus.uni-stuttgart.de

I am the author of F*EX (http://fex.rus.uni-stuttgart.de/) which is also a
debian package. F*EX comes with it's own webserver: fexsrv.

I have added multiple connection download capabilty to fexsrv.
On client side I am using axel for testing:

axel http://fex.rus.uni-stuttgart.de:8080/100

This "100" document is a simple 100 byte text file.

The downloaded file is complete, but I think axel is doing it a little
bit wrong. In the server log I see:

CONNECT:8080 2013-05-02 17:51:27 diaspora.rus.uni-stuttgart.de 129.69.13.139 [13512_0]
GET /100 HTTP/1.0
Host: fex
Range: bytes=1-
User-Agent: Axel 2.4 (Linux)

CONNECT:8080 2013-05-02 17:51:27 diaspora.rus.uni-stuttgart.de 129.69.13.139 [13516_0]
GET /100 HTTP/1.0
Host: fex
User-Agent: Axel 2.4 (Linux)

CONNECT:8080 2013-05-02 17:51:27 diaspora.rus.uni-stuttgart.de 129.69.13.139 [13518_0]
GET /100 HTTP/1.0
Host: fex
Range: bytes=77-99
User-Agent: Axel 2.4 (Linux)

CONNECT:8080 2013-05-02 17:51:27 diaspora.rus.uni-stuttgart.de 129.69.13.139 [13517_0]
GET /100 HTTP/1.0
Host: fex
Range: bytes=25-50
User-Agent: Axel 2.4 (Linux)

CONNECT:8080 2013-05-02 17:51:27 diaspora.rus.uni-stuttgart.de 129.69.13.139 [13519_0]
GET /100 HTTP/1.0
Host: fex
Range: bytes=51-76
User-Agent: Axel 2.4 (Linux)



Questions:

Why access [13516_0] without Range header?
Why access [13512_0] starting with offset 1 and no end?

I think these two requests should be better in one:

GET /100 HTTP/1.0
Host: fex
Range: bytes=0-24
User-Agent: Axel 2.4 (Linux)



-- 
Ullrich Horlacher              Informationssysteme und Serverbetrieb
IZUS/TIK                       E-Mail: horlacher at rus.uni-stuttgart.de
Universitaet Stuttgart         Tel:    ++49-711-68565868
Allmandring 30a                Fax:    ++49-711-682357
70550 Stuttgart (Germany)      WWW:    http://www.tik.uni-stuttgart.de/


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