Hey, I'm a bit of a newb, so please forgive me in advance. I'm running Fedora 8 on a home-brew P4 2.8 with 1 gig of ram. I am trying to run Adobe's Flash Media Server, and I was in the middle of streaming, we get like 15 minutes in it the connection from the encoder goes dead. The box it's self is alive and everything, I even have internet connectivity, but when I ping the box, it wont respond... So I reset it.
On the way back up, the Sendmail service decides it's gonna not start. So I interactive boot, I dont need it, when it fully booted, I stopped it and a few other services.
All is well now except that every like 10 minutes (we're normally streaming by this time) the box is unreachable and we restart and now login takes a serious 15 minutes...
ANY IDEAS?
I'm at a loss..
Thanks.
Billy Gedney
On Sun, 2008-10-26 at 18:03 -0700, Billy Gedney wrote:
Hey,
I'm a bit of a newb, so please forgive me in advance. I'm running Fedora 8 on a home-brew P4 2.8 with 1 gig of ram. I am trying to run Adobe's Flash Media Server, and I was in the middle of streaming, we get like 15 minutes in it the connection from the encoder goes dead. The box it's self is alive and everything, I even have internet connectivity, but when I ping the box, it wont respond... So I reset it.
On the way back up, the Sendmail service decides it's gonna not start. So I interactive boot, I dont need it, when it fully booted, I stopped it and a few other services.
All is well now except that every like 10 minutes (we're normally streaming by this time) the box is unreachable and we restart and now login takes a serious 15 minutes...
ANY IDEAS?
I'm at a loss..
---- apparently so - I'm at a loss too because I'm not sure which problem you are actually trying to solve.
Generally, if boot up hangs on sendmail service starting, it's because someone didn't pay attention to editing /etc/hosts file because the first 2 lines make it pretty clear...
# Do not remove the following line, or various programs # that require network functionality will fail. 127.0.0.1 localhost.localdomain localhost ::1 localhost6.localdomain6 localhost6
when the first 4 lines of /etc/hosts look different than this, you generally get the startup hangs from sendmail.
As for the 15 minutes and can't even ping...sounds like oom killer is dealing with some thing that is eating up memory like crazy. Does this happen if you turn off the Adobe Flash Media Server? I would think not. I don't have any knowledge of the Adobe Flash Media Server and you may not find many on this list that do. If you can narrow the problem down to Adobe Flash Media Server, do they have a support list?
Craig
Billy Gedney writes:
I'm a bit of a newb, so please forgive me in advance. I'm running Fedora 8 on a home-brew P4 2.8 with 1 gig of ram. I am trying to run Adobe's Flash Media Server, and I was in the middle of streaming, we get like 15 minutes in it the connection from the encoder goes dead. The box it's self is alive and everything, I even have internet connectivity, but when I ping the box, it wont respond... So I reset it.
That does not make sense. Are you implying that you cannot ping the box, yet if you run something on the machine's terminal, you can browse the web, etc?
I've never seen this before. My semi-educated guess would be that you're hitting some bizarre kernel bug. That would be the only thing that could cause something like this to happen.
I presume, of course, that you're not running something like portsentry, which can trip up and firewall an individual IP address, if it sneezes the wrong way. That would be one explanation for not being pingable from some another IP address, yet the machine being usable otherwise.
On the way back up, the Sendmail service decides it's gonna not start. So I interactive boot, I dont need it, when it fully booted, I stopped it and a few other services.
Something like this could also indicate a corrupted install or a configuration file.
All is well now except that every like 10 minutes (we're normally streaming by this time) the box is unreachable and we restart and now login takes a serious 15 minutes...
Why does it take a "serious 15 minutes:?
ANY IDEAS?
Other things to check is your hardware components. Run memtest, to check for faulty RAM. Configure and install lm_sensors, and see if any motherboard sensors are reporting faults. Reseat all PCI cards on the motherboard. Check that all cables are properly seated. Run smartctl, and see if your hard drives are healthy. Check all the cables. Look for worn out IDE/SATA cables, replace as needed. Check wired ethernet cabling. Make sure that it's rated for your actual ethernet speed.
On Sun, 2008-10-26 at 18:03 -0700, Billy Gedney wrote:
I was in the middle of streaming, we get like 15 minutes in it the connection from the encoder goes dead.
Overheating during heavy work?
On the way back up, the Sendmail service decides it's gonna not start. So I interactive boot, I dont need it, when it fully booted, I stopped it and a few other services.
You can use chkconfig to turn off sendmail. Sendmail usually gets stuck - well it will timeout after a minute or two - when the network isn't working.
All is well now except that every like 10 minutes (we're normally streaming by this time) the box is unreachable and we restart and now login takes a serious 15 minutes...
Sounds like your networking falls over under high load. Could be a network card problem or something similar.
ANY IDEAS?
tcpdump the network segment from another box and see if the packets are being lost locally or elsewhere. Would also be useful to know what network card is being used
Alan
On Sun, Oct 26, 2008 at 06:03:49PM -0700, Billy Gedney wrote:
Hey,
I'm a bit of a newb, so please forgive me in advance. I'm running Fedora 8 on a home-brew P4 2.8 with 1 gig of ram. I am trying to run Adobe's Flash Media Server, and I was in the middle of streaming, we get like 15 minutes in it the connection from the encoder goes dead. The box it's self is alive and everything, I even have internet connectivity, but when I ping the box, it wont respond... So I reset it.
On the way back up, the Sendmail service decides it's gonna not start. So I interactive boot, I dont need it, when it fully booted, I stopped it and a few other services.
All is well now except that every like 10 minutes (we're normally streaming by this time) the box is unreachable and we restart and now login takes a serious 15 minutes...
ANY IDEAS?
I'm at a loss..
Watch your external IP address. Google has a widget or just google for "my ip address" I suspect that your dhcp lease has expired 'badly' and the connection is lost because you have 'moved'.
Depending on your ISP and internet connectivity package you might find that increasing the lease time and or renewal timers will help. You do want to have your lease renewed before it expires. Do note that the dhcp server for your internet connection belongs to your ISP and cannot be configured by you. If you have a NAT box that has a secondary dhcp server you can configure it. ifconfig will let you see what your NAT box (wireless, Linksys, netgear, etc.) assignes locally.
If the above is 'magic' to you tell us more about your internet connection setup.
Do not ignore the four previous posts....
-
Alan Cox -
Billy Gedney -
Craig White -
Nifty Fedora Mitch -
Sam Varshavchik -
Tim