Strange Server Behavior

[Carruth, Rusty]

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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