Strange Server Behavior

[Mark Phillips]

Rusty,

I am running another test now, with the following services running

exim4
cups
apache2
openvpnas
cups
ntp

I will keep you posted.

Mark

On Wed, Jun 27, 2012 at 9:16 AM, Carruth, Rusty <
Rusty.Carruth at smartstoragesys.com> wrote:

> Well, I had to ask J****
>
> ** **
>
> I’d say its ‘divide and conquer time’ like I suggested earlier – enable
> half (approx) of the services and run the test.  If it passes, turn those
> off and then turn on the other half, rerun test.  If it passes, life gets
> hard, and I’m going to ignore that possibility for now!  Whichever test
> fails, repeat the above with that reduced set of services.****
>
> ** **
>
> If both halves pass, then there is some interaction between the services,
> and it’s not so easy as divide and conquer.   (but of course, if a service
> depends upon another one to be fully functional (apache and mysql are
> likely examples) then you’ll have to keep those services together till the
> bitter end (as it were)).****
>
> ** **
>
> However, there is still hope someone here has another idea…****
>
> ** **
>
> Rusty****
>
> ** **
>
> *From:* plug-discuss-bounces at lists.plug.phoenix.az.us [mailto:
> plug-discuss-bounces at lists.plug.phoenix.az.us] *On Behalf Of *Mark
> Phillips
> *Sent:* Wednesday, June 27, 2012 9:12 AM
>
> *To:* Main PLUG discussion list
> *Subject:* Re: Strange Server Behavior****
>
> ** **
>
> Rusty,
>
> The test was run from 11 PM to 7 AM, so no one in my house was doing
> anything but sawing logs, as far as I know. Yes, teenagers tend to stay up
> late, but I would have heard the tv. I don't think any of the other
> machines are really doing anything at that time as well.
>
> I don't think anyone is using my wifi....I have a 64 character key for AES
> and mac address filter for security. Yes, I know one can eaily spoof the
> mac address thing, but it keeps some out. I also have not seen anything
> strange in the logs.
>
> Rsync is a good idea, but I agree - fragile, lots to set up, but maybe
> worth a thought if nfs tends to be the problem. Maybe a script to check if
> a local folder has changed, and then rsync it........
>
> Mark****
>
> On Wed, Jun 27, 2012 at 8:59 AM, Carruth, Rusty <
> Rusty.Carruth at smartstoragesys.com> wrote:****
>
> Well, NFS server is less likely (I think!) to cause momentary freezes than
> the client, but samba MIGHT be an idea.  Hopefully someone else here has
> more experience with the server side of things, or maybe google would help.
> ****
>
>  ****
>
> On the upload video thing – if you wanted to go to a lot of work, you
> could put directories on each computer that periodically get rsync’d (or
> whatever) to the server, so that the family members only need to copy the
> movie to the directory on their machine and it will automatically get
> copied across.  But that may be more work and fragility than you want J
> (and might make you more expendable!).  but that could get rid of nfs or
> samba or any such thing.  Probably not worth doing if NFS isn’t’ the issue
> J, so I’d say turn on half the processes and see what happens, as I
> mentioned before..****
>
>  ****
>
> Thinking about the system for a bit – first the schedule of when things
> freeze.  Does it line up with anything being done on the client machines?
> On the TV? What ‘absolute time’ (wall clock time) were those 38 incidents
> at?  (If clients do something every 30 minutes, and they are out of sync
> with each other, that might explain the variability of the hiccup timing)*
> ***
>
>  ****
>
> Going a bit further afield: Have you verified that nobody is using your
> wifi for any nefarious purposes?  ****
>
>  ****
>
> Just some random thoughts…****
>
>  ****
>
> Rusty****
>
>  ****
>
> *From:* plug-discuss-bounces at lists.plug.phoenix.az.us [mailto:
> plug-discuss-bounces at lists.plug.phoenix.az.us] *On Behalf Of *Mark
> Phillips
> *Sent:* Wednesday, June 27, 2012 8:47 AM****
>
>
> *To:* Main PLUG discussion list
> *Subject:* Re: Strange Server Behavior****
>
>  ****
>
> I only installed nfs because I started to use this server as a media
> server, and I wanted my family to be able to add movies to the movie folder
> on the server. Mediatomb then scans the folder and makes the movies
> available on our nifty wifi enabled TV. ****
>
>
> Would samba be a better choice? The other computers on the network are
> mac, windows, ubuntu. However, the windoes user has a low probability of
> adding any movies by herself....;) (no gender bashing here.....I live with
> four wonderful women, and one of them is a complete techo-phobe, and she is
> proud of it.....but that helps keep me around, so all is good with the
> world).
>
> Mark ****
>
>  ****
>
>
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