On Wed, 2005-12-28 at 01:22 +1000, Michael D. Setzer II wrote:
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Not sure it will help, but G4L is designed to make compressed images to an ftp server, and these images can then be used with udpcast. It basically uses dd lzop or gzip and ncftp. Might be worthing seeing if it can create an image that could work for your setup.
I know and i used it for creating the images. But to mirror them on the machines after that was impossible due TimeOuts.
On 27 Dec 2005 at 16:04, Thomas Kuehling wrote:
Subject: Re: [Udpcast] udpcast gzip and lzop From: Thomas Kuehling thomas.kuehling@mapsolute.com To: Pierre CANAL pierre.canal@gmail.com Organization: Mapsolute GmbH Date sent: Tue, 27 Dec 2005 16:04:26 +0100 Copies to: udpcast@udpcast.linux.lu Send reply to: thomas.kuehling@mapsolute.com mailto:udpcast-request@udpcast.linux.lu?subject=unsubscribe mailto:udpcast-request@udpcast.linux.lu?subject=subscribe
Hi Pierre,
On Tue, 2005-12-27 at 12:25 +0100, Pierre CANAL wrote:
Hello,
I use udpcast for test. I make and image of /home with or without compression perfectly. But when I want to send image , if there is no compression it's Ok (some timeout notAnswered[0]...but finally it's ok) When I use lzop or gzip, I get an error sometimes on the sender, sometimes on the sender : I have a lot of Timeout notAnswered=[0} notReady=[0] nrAns=0 nrReady=0 nrPart=1 avg=8121 and so on...
Dropping client because of timeout lzop <stdin> checksum error... or invalid operand PREEMPT and crash server ! process udp-sender Stack ... Call Trace ... or Gzip stop Bad EIPvalue SIGSEGV .... And strange thing .. With no compression the speed is 80Mbps with lzop 20 Mbps with gzip 7Mbps
i had the same problem and if i used a "server" to save the images and use udp-sender with lzop or gzip, i got allways a timeout and the copy fails. The performace with gzip was worst and with lzop much better, too.
My main problem is, that it is actually impossibile, to save images on a server and copy them on a machine. I am still searching for a solution. :-(
My CPU is an Athlon 2400+ (not so bad), I use kernel 2.6.8 on a Debian Sarge.
I used a Pentium IV 2,4 with 1 GB RAM in the server and fast S-ATA drives.
Regards Thomas Kuehling -- Mapsolute Gmbh - Techn. Administration - TK2325-RIPE Düsseldorfer Straße 40a - 65760 Eschborn/Frankfurt a.M. - Germany Phone: +49 6196 777 56 413 - Fax: +49 6196 777 56 100 E-Mail: thomas.kuehling@mapsolute.com - web: http://www.mapsolute.com
Udpcast mailing list Udpcast@udpcast.linux.lu https://lll.lgl.lu/mailman/listinfo/udpcast
+----------------------------------------------------------+ Michael D. Setzer II - Computer Science Instructor Guam Community College Computer Center mailto:mikes@kuentos.guam.net mailto:msetzerii@gmail.com http://www.guam.net/home/mikes Guam - Where America's Day Begins +----------------------------------------------------------+
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Thomas Kuehling