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ndsd repeatedly grabs memory, then crashes

This past January I started a thread in this forum called "ndsd failing, using
negative memory". The "negative memory" was obviously just a cosmetic issue,
but the underlying problem with the eDirectory daemon remains. We are running
OES2 64-bit, which since my January post we have upgraded to SLES10 SP2/OES2
SP1. Every few weeks ndsd suddenly starts using more and more memory, and if we
do nothing it soon crashes, disconnecting all of our users from the server.

Right now we have a script set to run every hour that checks the daemon's memory
usage and alerts me if it goes over a certain value. When it does we wait until
the end of our school day, get everyone logged out of the server, and restart
ndsd. Then the memory usage returns to normal and we're usually fine again for
at least two weeks. Eventually, though, the problem always comes back. One
thing I have found is that we did not have the problem during the summer when
our people were away. The problem only seems to develop when the server is
being used heavily.

I've seen other mentions of the problem in this forum, but I haven't seen a
confirmed solution. We don't have a support agreement with Novell, and so I
don't have an option to open a case with them. Any suggestions, or is this just
something that Novell has to fix?

On a side note, before I applied OES2 SP1 it took the server no more than 60
seconds to restart ndsd. Since the upgrade it now takes about 10 minutes. Any
thoughts on that?



Jim Wagner
Arcadia Valley Schools
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Re: ndsd repeatedly grabs memory, then crashes

What exact NDSD version are you on now? If you are completely patched up to date, this will require a support call, a memory dump most likely. Even without a Novell contract you can still get support via Arrow ECS Novell Support Request Page

Andrew C Taubman (Sorry, support is not provided via e-mail) Opinions expressed above are not necessarily those of Micro Focus.
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Re: ndsd repeatedly grabs memory, then crashes

ataubman wrote:
> What exact NDSD version are you on now? If you are completely patched up
> to date, this will require a support call, a memory dump most likely.
> Even without a Novell contract you can still get support via 'Arrow ECS
> Novell Support Request Page' (http://www.alttech.com/support/novell)
>


We are, admittedly, several weeks behind in our patches. Our server appears to
have ndsd 8.8.4-0.25 / 20217.06. We will, of course, be applying the latest
versions during our next server maintenance. We had hoped that applying OES2
SP1 would fix the problem, but it obviously didn't. Unless this is a known
issue fixed since our eDir version then I imagine the problem will still exist
after the latest patches, too.

I found out about that Arrow ECS company over the summer. Just when I thought
Novell's per-incident support couldn't get any worse they turn it over to these
guys. It used to be that per-incident support was simply too expensive for
small schools like ours. Now it's even more expensive, and they charge by the
day, not by the incident. It's business decisions like this that make it look
more and more like Novell doesn't care about the little guy any more. Unless I
could get some assurance of a refund upfront I think I'd be inclined to take
another route, say create a script to restart ndsd every Sunday night.

-J.W.

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Re: ndsd repeatedly grabs memory, then crashes

Just for the record, here is the hourly ndsd memory usage from yesterday when it
began to warn me of a problem. You can see that when it gets bad it gets bad fast.

634056 (KB)
680748
817400
853720
978340
1017760
1068260
1196024 or about 1 GB.

The server has 8 GB of RAM. At that rate of increase we would have had a crash
within a few days, and likely performance problems well before that.

I restarted ndsd yesterday afternoon. About a day later it's holding steady at
just under 300 MB.

-J.W.
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Re: ndsd repeatedly grabs memory, then crashes

Jim Wagner;1850490 wrote:

We are, admittedly, several weeks behind in our patches. Our server appears to have ndsd 8.8.4-0.25 / 20217.06. We will, of course, be applying the latest versions during our next server maintenance.

8.8.4 FTF1 contains 20217.07 so you should try that in the first instance.

I found out about that Arrow ECS company over the summer ... they charge by the day, not by the incident.

That's simply untrue, where did you get that idea? To quote from the page I linked for you
fixed-fee pricing (we do NOT charge by the hour)

A Service request is defined as assistance with a single support issue relating to the use or installation of a Novell product, regardless of the number of communications required.

Andrew C Taubman (Sorry, support is not provided via e-mail) Opinions expressed above are not necessarily those of Micro Focus.
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Re: ndsd repeatedly grabs memory, then crashes

ataubman wrote:
> Jim Wagner;1850490 Wrote:
> 8.8.4 FTF1 contains 20217.07 so you should try that in the first
> instance.


I see the following updates (among others) available in Online Updates:
oes2sp1-edirectory-884-ftf1 6039-1
oes2sp1-edirectory-885 6262-0
oes2sp1-novell-NDSserv 5953-0

I guess I should just install all of the updates available, right?


> That's simply untrue, where did you get that idea? To quote from the
> page I linked for you
>> *fixed-fee pricing* (we do NOT charge by the hour)
>> A Service request is defined as assistance with a single support issue
>> relating to the use or installation of a Novell product, *regardless of
>> the number of communications required*.

>


You're obviously right, that's what it says, but I have a very good reason for
my statement. During the summer our update of this server to OES2SP1 froze in
the middle, and I needed help. I was referred to that company for per incident
support, and I remember the conversation clearly. The man I talked to told me
that they charge $800, or $1000 if the call goes into the evening hours. When I
asked him if that was "per incident" he explained that it was "per day". If the
call was not resolved in one day then we would be billed for another day.
Perhaps the company has changed policy since then, or the guy I got didn't know
what he was talking about. I notice that web page doesn't mention a refund
policy, such as if a problem is due to a bug that Novell has to fix. Do you
know if they have such a policy?

-J.W.
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Re: ndsd repeatedly grabs memory, then crashes

Jim Wagner;1850864 wrote:
ataubman wrote:
> Jim Wagner;1850490 Wrote:
> 8.8.4 FTF1 contains 20217.07 so you should try that in the first
> instance.


I see the following updates (among others) available in Online Updates:
oes2sp1-edirectory-884-ftf1 6039-1
oes2sp1-edirectory-885 6262-0
oes2sp1-novell-NDSserv 5953-0

I guess I should just install all of the updates available, right?

I'd just go with the FTF to start with, then move onto 8.8.5 if that doesn't help.


I notice that web page doesn't mention a refund policy, such as if a problem is due to a bug that Novell has to fix. Do you know if they have such a policy?

I don't, but I'd be stunned if that was not part of the agreement between Novell and AltTech.

Andrew C Taubman (Sorry, support is not provided via e-mail) Opinions expressed above are not necessarily those of Micro Focus.
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Re: ndsd repeatedly grabs memory, then crashes

ataubman wrote:
>> I guess I should just install all of the updates available, right?
>>

> I'd just go with the FTF to start with, then move onto 8.8.5 if that
> doesn't help.


My next opportunity to apply server updates will be the end of next
week. Then I will just have to wait until the problem occurs again (or
doesn't). I will post back here in a few weeks once I have made a
determination.

-J.W.
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Re: ndsd repeatedly grabs memory, then crashes

We are having a similar problem with our 1st OES 2.1 Sles 10.2 server in a tree of 156 NetWare 6.5.7 servers. eDir stops after a few days, we have an incident open with Novell. This server has eDir 8.8.4 ftf1. What are u using to show the mem usage?
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Re: ndsd repeatedly grabs memory, then crashes

are you running salvage on your nss volumes? If so, try shutting it off and see what happens to your ndsd memory usage. We had a similar problem and this is what kept our server from running out of memory. The thing that bothers me is that you say you are on 64 bit and we're running on 32 bit..... other forums had stated that the 64 bit wouldn't suffer from the memory limitations of 32 bit but maybe this is not so.

It still amazes me that Novell has yet to fix this issue and no one seems to have a clue as to why it's happening. All we're told is to apply the latest patches but if you read what's been fixed in them, there is nothing that seems to address this issue. We were going to switch over to 64 bit but after seeing your issue, I'm not so sure.

Stephen

Jim Wagner;1850557 wrote:
Just for the record, here is the hourly ndsd memory usage from yesterday when it
began to warn me of a problem. You can see that when it gets bad it gets bad fast.

634056 (KB)
680748
817400
853720
978340
1017760
1068260
1196024 or about 1 GB.

The server has 8 GB of RAM. At that rate of increase we would have had a crash
within a few days, and likely performance problems well before that.

I restarted ndsd yesterday afternoon. About a day later it's holding steady at
just under 300 MB.

-J.W.
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