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Instantly restart a server or workstation each day
Authored by: lurch99 on Oct 17, '05 04:53:41PM
I also administer several Tiger servers and run the same services you mention, in addition to others, and never have experienced the freeze you're talking about. I'm not even sure if it's crashed even once on any of the three Tiger machines I admin (two G4s, one xServe). These machines are all workhorses that hardly ever get a chance to catch their breath, either. You ought to investigate what's causing the problem, because restarting the machines is not a good solution. Look closely at the logs in Console and I'm sure you'll find valuable information; also, you ought to post a message on the Apple website, too, and try to figure out what's happening. Address the problem at hand before simply restarting it, that's only a half measure that will never get at the root of the problem. Cheers, Lurch

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Instantly restart a server or workstation each day
Authored by: TigerKR on Oct 17, '05 07:25:14PM

I am glad that you are not having any problems. But I know that I am not alone with this problem.

I have poured over every log file that I could find, scoured their contents whether or not I thought they were relevant. I don't even have confirmation of the freeze from any of the logs - they all just stop logging as if they are asleep until the eventual forced restart when they start logging again. By the way, my servers are set to never sleep - HD nor system sleep.

I've left a terminal window open on the servers with top running to hopefully catch a process max-ing out the CPU, or maybe to see that I've run out of RAM - no dice... I've spent many sleepless nights trying to find a solution. To no avail. With my current implementation, I have 0 problems.

How are you running DHCPd on Mac OS X client? What version of DHCPd are you running?



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Instantly restart a server or workstation each day
Authored by: lurch99 on Oct 18, '05 10:40:35AM

Then let me ask: what devices do you have connected to your server? Do you have an extra machine you can do a clean install on, to see if you can duplicate the problem? My guess is a hardware problem if you're truly not seeing it in the logs. I'm on the OS X Server mailing list and I've not heard of anyone else with your problem, so I would be hesitant to conclude its a bug in the OS. Don't give up and conclude you've reached the end of the road in terms of troubleshooting, it's often something you've overlooked ag ain and again. Have you tested your RAM? Did you buy third party RAM from the same company and installed the same chips in both machines? These are (some) of the questions you need to ask...



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Instantly restart a server or workstation each day
Authored by: TigerKR on Oct 18, '05 10:21:57PM

I have previously stated that I have experienced identical behavior on two separate machines, both with identical hardware and software configurations. However, the two machines are in two separate physical locations and they are working off of two separate ISPs.

So to answer your question - yes, I have duplicated the problem. I did not clone the machines, they were wiped and installed fresh individually (albeit with the same procedures).

The only devices that I have attached to the computer(s) are a a broadband modem, a 10/100 ethernet switch, an apple keyboard, an apple mouse, and LCD monitor.

I also considered a hardware issue, however, everything was working fine (with both machines) before I upgraded them to Tiger. Its a little odd that both computers would suddenly develop a hardware issue exactly after being (wiped and ) updated to Tiger. I wish that I could downgrade, but alas, I cannot.

Again, as I had previously stated, I tried changing RAM, repairing permissions, running Disk Warrior, Drive Genius, zapping the PRAM, etc. I have also run Techtool Pro, moved the RAM around, swapped it in and out, etc...

By the way, I am not running Mac OS X Server.

I think that I have already not only asked those questions, but also answered them too.



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Instantly restart a server or workstation each day
Authored by: lurch99 on Oct 19, '05 09:52:55AM

TigerKR, I hear you but I still don't think the problem is with the Tiger OS.

Your original note says you are running server, so I'm confused. How else are you running DNS services? And DHCP? Are you building these yourself?

You need to be totally scientific about this. I admin more than 50 Tiger/Panther clients and three servers, why haven't I had this problem? Or why haven't I seen this on the Apple mailing lists, either? If you think this is a bug that others are experiencing, too, I have found zero evidence of that.

In short, either scripting or manually restarting your server on a daily or weekly basis is a totally impractical solution, and I'm sure Apple will not figure out your problem since it doesn't sound like you're terribly clear on what the problem is, and how to fix it...

Lurch



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Instantly restart a server or workstation each day
Authored by: TigerKR on Oct 19, '05 10:22:49AM

From the original hint: "Among other things, I administer two identical servers located in different locations on different LANs. They're running Mac OS X 10.4.2 client w/all updates..."

DNS is handled by Mice & Men Suite 5, and DHCPD is handled by the darwin-ports build isc-dhcpd-V3.0.2. That is the only darwin-port I have installed.

Are any of the machines that you admin Blue and White G3 towers? I don't have a problem with Tiger on any of the other computers that I administer, but they're all G4s and they aren't running DNS, DHCPD, IPFW2, nor NATD.

Just yesterday I swapped out a Blue and White tower for a Quicksilver G4 (single processor). I will try removing the daily restart on the G4 tower to see if it was a problem with the OS in relation to the old hardware.



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Instantly restart a server or workstation each day
Authored by: stewarsh on Oct 17, '05 10:44:09PM

All that has been done and several steps beyond that. This bug doesn't seem to affect everyone, but I don't have enough test environments to trace the exact fault. However, Apple does and I've been working with their Enterprise Support group to resolve the issue. I imagine that the fix will be included in 10.4.3, but have no solid confirmation on that.

So far the only way to get your machine back once it hits this state is to reboot since killing and re-starting lookupd has no affect. Nor does flushing the lookup cache, nor restarting DirectoryServices or any combination of the above that I've tried. At this point I can only wait on Apple.



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