Udpcast January 2012

udpcast@udpcast.linux.lu

4 participants
5 discussions

exit code not passed if rx pipe fails
by George Coulouris 25 Apr '12

25 Apr '12

Hello, If udp-receiver is writing to a pipe and the pipe fails, udp-receiver will incorrectly exit with a returncode of zero. This is easily tested with a trivial pipe program that copies stdin to stdout, but exits with a nonzero status upon encountering eof. Adding the following to startReceiver() in udpr-negotiate.c is sufficient to fix this behavior: <---- cut here int ret; ... if(pipePid) { ret=udpc_waitForProcess(pipePid, "Pipe"); } ... return ret; <---- cut here Regards, George Coulouris National Center for Biotechnology Information (contractor)

2 1

Drivers for NIC and HDD
by Rahul Rao 02 Feb '12

02 Feb '12

I was just looking out for drivers for NIC and Hard Disk. Their model numbers are as follows, NIC: 1) Realtek RTL8168C(P)/8111C(P) Family PCI-E Gigabit Ethernet NIC(NDIS 6:20) Harddisk: 1) WDC WD2500 AAJS-60M0a0 ATA DEVICE 2) Hitachi HDP725016GLA380 ATA DEVICE Can you suggest me any other driver which can be compatible with this model of the hardware. -- Regards, Rahul Rao Msc-CA, SICSR

2 1

Re: [Udpcast] udpcast 20110710 too re-xmits
by Lluís Gras 24 Jan '12

24 Jan '12

Great !!! --nosync do the trick But still a lot of re-xmits, ie root@debian:~# udp-sender --file /dev/sda6 --interface eth0 -P 9000 . . . bytes= 24 038 355K re-xmits=2071665 ( 12.2%) slice=0112 - 0 Timeout notAnswered=[0] notReady=[0] nrAns=0 nrRead=0 nrPart=1 avg=743 Timeout notAnswered=[0] notReady=[0] nrAns=0 nrRead=0 nrPart=1 avg=923 bytes= 24 143 004K re-xmits=2080485 ( 12.2%) slice=0112 - 0 Transfer complete. Disconnecting #0 (192.168.10.21) root@debian:~# udp-receiver --file /dev/sda6 --nosync --interface eth0 -P 9000 Udp-receiver 20110710 UDP receiver for /dev/sda6 at 192.168.10.21 on eth0 received message, cap=00000009 Connected as #0 to 192.168.10.16 Listening to multicast on 232.168.10.16 Press any key to start receiving data! bytes= 24 143 004K (439.79 Mbps)) Transfer complete. Thanks 2012/1/19 Raul Sanchez <raul(a)um.es> > Hi > > Have you try to use "--no-sync" option? > > I had a similar problem and i solved it that way. I think that udpcast has > change its default settings in any cases. > > Byeee > > > > > > > Lluís Gras <lluisgg(a)joseptous.info> escribió: > > > Hi > > Sorry for my English. > > I have been using udpcast (PXE or a custom Debian Live) over the past two > years (version 20100130) and I recently upgraded to the latest version ( > 20110710), the old version got a transfer rate of about 480Mbps, withfeww > reemissions (approximately 10 re-xmits) with the new and the same teams > involved does not exceed 43 Mbps. I tried to disable ipv6 (ipv6.disable = > 1) but there was no difference. > > If I use the udp-sender (20110710) with the udp-receiver (20100130) > recovered the rate of 480 Mbps. > > How do I find out why the number of re-xmits increases significantly? > > > Thanks in advance >

2 3

udpcast 20110710 too re-xmits
by Lluís Gras 19 Jan '12

19 Jan '12

Hi Sorry for my English. I have been using udpcast (PXE or a custom Debian Live) over the past two years (version 20100130) and I recently upgraded to the latest version ( 20110710), the old version got a transfer rate of about 480Mbps, with feww reemissions (approximately 10 re-xmits) with the new and the same teams involved does not exceed 43 Mbps. I tried to disable ipv6 (ipv6.disable = 1) but there was no difference. If I use the udp-sender (20110710) with the udp-receiver (20100130) recovered the rate of 480 Mbps. How do I find out why the number of re-xmits increases significantly? Thanks in advance

1 0

New version with kernel 3?
by Gunner Poulsen 04 Jan '12

04 Jan '12

Hi I am using Udp-cast and I am happy, but some of the new mashines I have bourght dont work with it. The kernel dont know my harddisk-controler (I think) så it cant find my disks. Are you planning to make a new version soon, with kernel 3? Gunner Poulsen Teacher Denmark.

2 1

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Udpcast January 2012