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Pooh Bear 27
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Joined: 28 Jan 2005
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Location: Fond du Lac, WI
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 Posted: Sun May 19, 2013 6:42 pm Post subject: Collatz? |
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| Anyone hear why Collatz has been down? |
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Gemjunkie
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Joined: 03 Jul 2010
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| Posted: Sun May 19, 2013 7:15 pm Post subject: |
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I hadn't even heard that Collatz has been down.
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Gemjunkie
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| Posted: Sun May 19, 2013 7:20 pm Post subject: |
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OK, I just checked the Collatz area of the SUSA forum.
11hrs. ago:
| Slicker wrote: | | I'm several hours away and won't be getting back to check it out until late afternoon/evening. |
9hrs. ago:
| Slicker wrote: | | Firewall is up. VPN is up. So it looks like the problem is with the collatz server itself. |
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PhastPhred
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Joined: 22 Mar 2006
Posts: 6017
Location: Northwest AR (USA)
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| Posted: Sun May 19, 2013 8:19 pm Post subject: |
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WayBack Machine has Data from 20 Apr 2013 at 19:53:49, but it doesn't display any Data Captures.
Let's blame the WayBack Machine!!
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PhastPhred
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Location: Northwest AR (USA)
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| Posted: Sun May 19, 2013 8:25 pm Post subject: |
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Slicker also Posted at 3DNow:
| Quote: | News: ByeBye Wingman
Quote:
Originally Posted by Slicker [TopGun
A new application has been added named "solo_collatz." This application has a quorum of one such credit will be granted as soon as the result is validated. Rather than wait for a second computer to return the same result, the solo application uses the CPU to double check the GPU results Eliminating the need for a wingman. Multiple instances of the solo CUDA and OpenCL applications can be run on a GPU at a time via the use of an app_config.xml file if GPU utilization is lower than with previous Collatz applications.
If you wish to run both GPU and CPU applications, it is suggested did you uncheck both "collatz" and "mini_collatz" check "solo_collatz" and so check "If no work for selected applications is available, accept work from other applications?" That will enable you to get mini_collatz work for you solo_collatz work for your CPU and GPU.
Slicker [TopGun] April 19, 2013, 16:50:12 UTC
http://boinc.thesonntags.com/collatz...ead.php?id=997
News: Server upgrade on Friday, April 18th
Quote:
Originally Posted by Slicker [TopGun
On Thursday morning, April 18th, the Collatz server will be taken down to upgrade it to the latest BOINC server software. Enable Collatz This Should upgrade to support OpenCL applications on embedded Intel GPUs.
Slicker [TopGun] April 16, 2013, 21:35:09 UTC
http://boinc.thesonntags.com/collatz...ead.php?id=994 |
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Pooh Bear 27
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Joined: 28 Jan 2005
Posts: 1358
Location: Fond du Lac, WI
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| Posted: Mon May 20, 2013 10:29 am Post subject: |
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| It's back. Seems they had a power supply die. |
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Gemjunkie
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Joined: 03 Jul 2010
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| Posted: Tue May 21, 2013 1:32 am Post subject: |
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Down again.
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Pooh Bear 27
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Location: Fond du Lac, WI
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| Posted: Tue May 21, 2013 10:20 am Post subject: |
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| And back up. Seems a transformer in the area took a lightening strike. Since this seems to be run out of someone's home they were not there to start up their generator. |
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Pooh Bear 27
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Joined: 28 Jan 2005
Posts: 1358
Location: Fond du Lac, WI
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| Posted: Wed May 22, 2013 8:43 am Post subject: |
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| Down again. Hardware issues, again. |
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branjo
Prince
Joined: 05 Jan 2006
Posts: 746
Location: Slovakia
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| Posted: Wed May 22, 2013 12:37 pm Post subject: |
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On the brighter side of the Collatz: they are the only (AFAIK) project with application for intel_GPU. And it is working flawlessly
Cheers 
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Pooh Bear 27
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Location: Fond du Lac, WI
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| Posted: Fri May 31, 2013 12:58 pm Post subject: |
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| Down again?!?! |
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PhastPhred
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Joined: 22 Mar 2006
Posts: 6017
Location: Northwest AR (USA)
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| Posted: Fri May 31, 2013 1:06 pm Post subject: |
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We have a Candidate for July PotM here! 
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Gemjunkie
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| Posted: Fri May 31, 2013 1:27 pm Post subject: |
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Yeah, lightning is not good for computers at all. 
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branjo
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| Posted: Fri May 31, 2013 2:42 pm Post subject: |
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| Gemjunkie wrote: | | Yeah, lightning is not good for computers at all. |
Yes. We can go golfing while waiting for computing
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Pooh Bear 27
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Location: Fond du Lac, WI
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Pooh Bear 27
Prince
Joined: 28 Jan 2005
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Location: Fond du Lac, WI
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| Posted: Tue Jul 16, 2013 9:13 am Post subject: |
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Down for days again, saying under maintenance and no information on the home page as to why. Frustrating, but my backup project, Einstein is kicking through a lot of BRP5.
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Gemjunkie
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Joined: 03 Jul 2010
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| Posted: Tue Jul 16, 2013 8:25 pm Post subject: |
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| Quote: | Collatz Database Corrupt
While I was working on getting the new Collatz server configured, I realized that the current server was down again. I rebooted it but couldn't connect due to a MySQL corruption. How corrupt? It won't start. If it won't start, you can't repair it. Nice. The only option is to wipe out all the MySQL data and restore from backups. The good news is that the backup ran less than 15 minutes prior to the server going down, so very little data will be lost. But, given the issues lately, I'm very tempted to just restore it to the new server. That will take a little longer as I have to do a bunch of other configuration stuff as well, but it will be more stable in the end. Assume it will be down all weekend. If I can't get it running by Monday, it may be down for another whole week (family reunion and we are the lucky ones hosting it this year).
Re: Collatz Database Corrupt
Doh! I thought the database had been backed up 15 minutes prior to the crash. Not so. The backup happened around 2 a.m. and the system crashed around 6 a.m. That means that the database vs. the file system are 4 hours out of sync. Give 55K WUs completed per day, that means thousands of files out of whack. Once I get it all configured, I'll have to write some custom one-time code to compare the files in the WU folders to the records in the database and somehow create the WU records for the ones which aren't in the database. Then I'll need to do the same for any result files. It could be a very long week.
Re: Collatz Database Corrupt
From the looks of things, there are 4500 WUs that were reported, validated, and deleted that the server (from the backup file) thinks are missing. That probably means there were another 4500 WUs created and sent out that the server also doesn't know it did and worse, doesn't know who it sent them to. This is going to be fun to try and figure out... |
Quoting Slicker.
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Pooh Bear 27
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Location: Fond du Lac, WI
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| Posted: Mon Jul 22, 2013 3:49 pm Post subject: |
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| Any updates from Collatz, since I am unsure where you are getting your news from G.J. |
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Gemjunkie
Prince
Joined: 03 Jul 2010
Posts: 3519
Location: Earth, lately
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| Posted: Tue Jul 23, 2013 9:07 am Post subject: |
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No new posts by Slicker in the Collatz section @SETIUSA.
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branjo
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| Posted: Sun Jul 28, 2013 12:09 pm Post subject: |
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| Quote: | Up and Running Again
The new server is finally up and running and everything that could be recovered from the old server was moved over to it. Total credit and RAC were updated from the last stats dump since it was several hours newer than the database backup. Unfortunately, the server has no knowledge of any work units sent out between the database backup and the crash. While I can recreate the missing work units, I cannot create the missing result records because I have no way of knowing which host was sent which work unit. As is often the case with a new deployment, there will likely be a few glitches so please let me know of any issues. Thanks.
26 Jul 2013, 19:30:46 UTC |
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