Panic Mode On (21) Server problems

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Miklos M.

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Message 919838 - Posted: 20 Jul 2009, 20:32:54 UTC - in response to Message 919835.  

I would like to believe that, but I am finishing wu's faster than they are uploading, so I am getting further behind each hour.
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Message 919848 - Posted: 20 Jul 2009, 20:51:57 UTC - in response to Message 919812.  

Of course the problem there is just as it clears (say within 12 to 18 hours) the server is going to go offline for a maintenance cycle....

If one or two get through every now & then, then the only problem is the load on the servers.
When will it clear? Wild guess- hopefully some time in the next 6-12 hours.


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Message 919849 - Posted: 20 Jul 2009, 20:54:17 UTC - in response to Message 919848.  

Which is exactly why I performed these steps:

1. Hammered all of mine through until I was able to download again

2. Set my cache to 10 days

3. Wait for downloads to finish

4. Set cache to 3 days.

5. Wait out the storm.

6. Repeat.
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Message 919862 - Posted: 20 Jul 2009, 21:42:57 UTC
Last modified: 20 Jul 2009, 21:43:19 UTC

...exactly.

I also set my cache to 10 days till my 1500 WU's come in for the day, then finish filling up the next day, then set it back to 4 days, set NO NEW TASKS and kill network communication....and I just sit and crunch without having to bother the servers any till it's time to Upload/Report - which I try to do all in a single shot, then get off the network as quickly as I can.

I am now crunching my last 1800+ WU's that I have on my machine (with No New Tasks set)for Seti@Home, as once they are complete, I will be reformatting this machine and installing some Solid State Drives (as it's also my main workstation), then moving over to another project that is less mature, that can use the extra power that I have to offer.

I feel as though I have accomplished what I needed to here crunching for Seti@Home exclusively - time for another Project for exclusive crunching.

Allan
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formerly known as...MC Hammer.
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Message 919871 - Posted: 20 Jul 2009, 22:01:27 UTC - in response to Message 919869.  

It seems that the results feature has been turned off for some time. Is there any other way to determine if your results are timing out?


Or is there a method to their madness ;-).


I think what they are trying to do is reduce the load on the Master DB as much as they can, so any features that are off are to scrape every inch of available bandwidth to keep the requests down.
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Message 919874 - Posted: 20 Jul 2009, 22:06:25 UTC - in response to Message 919792.  

http://en.wikipedia.org/wiki/University_of_California,_Berkeley

"The 2006-2007 budget totaled $1.7 billion; 33% came from the State of California. In 2006-2007, 7,850 donors contributed $267.9 million and the endowment was valued at $2.89 billion."

I think this is enough money for server here and a cable there and maybe a loadbalancer for christmas. Berkeley has to do the next step.

That money is for Universtiy funding, it is not for Seti. The University doesn't fund Seti.


I thought for sure that the university helped out in some way.

It's a University owned building with some services provided.

In 2006-2007, 7,850 donors contributed $267.9 million

I'm sure that includes cash donations to the S@H fund. The number of donors would probably be significantly less if our contributions weren't included, though only the .9 in the amount would change. Really big donors want a new building with their name on it...
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Message 919885 - Posted: 20 Jul 2009, 22:35:01 UTC - in response to Message 919874.  

If I could afford a donation so big you guys would rebuild a building with my name on it.

"The SETI project is now based at the Vistro.net Super Smallish Server Shack. The data is being carried by the Freakin' Fast Fail Free Fiber File Freighter"

Makes me feel homicidal whenever somebody other than me hits the powerball.

Let's see... current powerball jackpot at 36.8 million cash value after tax...

1 million to pay off the house and then some

2 million to SETI

1 million in "ego machines"... server chassis with as many PCI slots as possible for Nvidia cards, or maybe get one machine and get many many racks full of those rack mounted nvidia Tesla jobs.... 4 teraflops per unit, I'd buy at least 100 units.

1 million to Arecibo so it don't go away in '11.

1 million in Coca-Cola (Don't jugde)

With 32 million left over!

Maybe I'd blow that by stapling fifties to homework assignments.


Makes me almost suicidal that I don't have that kind of cash laying around.




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Message 919891 - Posted: 20 Jul 2009, 22:55:39 UTC - in response to Message 919885.  

1 million in "ego machines"... server chassis with as many PCI slots as possible for Nvidia cards, or maybe get one machine and get many many racks full of those rack mounted nvidia Tesla jobs.... 4 teraflops per unit, I'd buy at least 100 units.

<snip>

With 32 million left over!

Don't forget the generating plant to make the electricity to feed a million dollars in "ego machines."

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Message 919898 - Posted: 20 Jul 2009, 23:27:51 UTC
Last modified: 20 Jul 2009, 23:28:06 UTC

Crap, too bad there is only 1 or 2 known PCI CUDA cards available on the planet ;)

I am sure PCIe would suit the project just fine though ;)
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Message 919899 - Posted: 20 Jul 2009, 23:28:11 UTC - in response to Message 919895.  

I'm talking out of my ass here, but my guess would be that it's reporting before it uploads.

But that's probably wrong.
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Message 919900 - Posted: 20 Jul 2009, 23:29:24 UTC - in response to Message 919898.  

Crap, too bad there is only 1 or 2 known PCI CUDA cards available on the planet ;)

I am sure PCIe would suit the project just fine though ;)


ihateyou

I get so caught up in my fantasies, that I actually shop for machine parts.

Now I have to look for a new chassis that has all PCIe slots.
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Message 919934 - Posted: 21 Jul 2009, 1:42:11 UTC - in response to Message 919798.  


I am sure there are a few 'Student Scientific Breakthroughs' that they can steal and profit from, giving back to the project at the same time.

Isn't that what Professors/Scientists do to supplement their income ? ?


No.


Join the PACK!
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Message 919955 - Posted: 21 Jul 2009, 2:10:03 UTC - in response to Message 919849.  

Okay, I will ask...

How does this help Seti. What did you "responsibly do?"

How much Irresponsible/Non Factual information did you broadcast?

Which is exactly why I performed these steps:

1. Hammered all of mine through until I was able to download again

2. Set my cache to 10 days

3. Wait for downloads to finish

4. Set cache to 3 days.

5. Wait out the storm.

6. Repeat.


Regards

Please consider a Donation to the Seti Project.

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Message 919971 - Posted: 21 Jul 2009, 2:41:10 UTC - in response to Message 919862.  

I have to ask is this Responsible Information? Or Misinformation.

It does nothing to help the project and potentially causes more User frustration as what you made work, will Not work for them...

Regards

...exactly.

I also set my cache to 10 days till my 1500 WU's come in for the day, then finish filling up the next day, then set it back to 4 days, set NO NEW TASKS and kill network communication....and I just sit and crunch without having to bother the servers any till it's time to Upload/Report - which I try to do all in a single shot, then get off the network as quickly as I can.

I am now crunching my last 1800+ WU's that I have on my machine (with No New Tasks set)for Seti@Home, as once they are complete, I will be reformatting this machine and installing some Solid State Drives (as it's also my main workstation), then moving over to another project that is less mature, that can use the extra power that I have to offer.

I feel as though I have accomplished what I needed to here crunching for Seti@Home exclusively - time for another Project for exclusive crunching.

Allan


Please consider a Donation to the Seti Project.

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Message 919973 - Posted: 21 Jul 2009, 2:48:48 UTC - in response to Message 919848.  

Currently in the Server Status Page

Results out in the field 4,284,518 207,714
Results returned and awaiting validation 3,266,340 119,507
Workunits waiting for db purging 526,332 7,022
Results waiting for db purging 1,112,401 15,714

Those are things actively attacking the DB... Does anyone recall any of Matt's notes about DB Bloat? Or the unstated things about how the Task Lists/Pending Credit and others affect keeping the replica in sync.

Right now essential Services are Running.

Regards


Of course the problem there is just as it clears (say within 12 to 18 hours) the server is going to go offline for a maintenance cycle....

If one or two get through every now & then, then the only problem is the load on the servers.
When will it clear? Wild guess- hopefully some time in the next 6-12 hours.



Please consider a Donation to the Seti Project.

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Message 920044 - Posted: 21 Jul 2009, 11:03:43 UTC - in response to Message 919647.  



Ah, found it.
An in depth run down on SSDs (a very long read but well worth it).
But in particular, a look at the problems of JMicron controllers.


Thanks for that. I will have a good read of that now and maybe change the gameplan a bit before shelling out any cash tomorrow......

Cheers.
Allan




Ah, found it again!
A look at hardware RAID using SSDs compared to HDDs.
RAID5 in action.
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Message 920058 - Posted: 21 Jul 2009, 12:30:37 UTC

More panic. Now i can´t see my results... i don´t know what i´m doing...
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Message 920062 - Posted: 21 Jul 2009, 12:41:29 UTC - in response to Message 920058.  

Don't panic on that issue, they turned off that feature for the time being to reduce the hit on the database.

It will be turned back on when they get all the kinks worked out.

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Message 920064 - Posted: 21 Jul 2009, 12:50:03 UTC - in response to Message 920044.  

Ah, found it again!
A look at hardware RAID using SSDs compared to HDDs.
RAID5 in action.

Aside: Note that for database use, normally RAID5 is a Very Bad choice... Something more like RAID0 or RAID10 is a far better bet.

Note also that SSDs are rather special due to their near zero latency.

All interesting stuff (for some at least :-) )

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Martin

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Message 920073 - Posted: 21 Jul 2009, 13:14:55 UTC
Last modified: 21 Jul 2009, 13:17:57 UTC

If you don't know what you are doing - don't do it! ;-)
If you want to know what you have done - wait 'til the service is up again ;-) (by chance after the usual maintenance)
__W__
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Message boards : Number crunching : Panic Mode On (21) Server problems


 
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