News

nanoHUB@Home server relocation

The nanoHUB@Home server is moving to a new physical location. This move potentially will cause intermittent interruption of service for the next several days.

15 Dec 2019, 15:56:43 UTC · Discuss



Running again

The recent problem has been cleaned up. A nanoHUB machine that handled results returned from the BONIC server froze, stranding 100k successfully completed results, along with some live nanoHUB sessions. We saved all the results and set up a new dedicated machine to handle that part of the work flow. We will ramp up WU production again.

9 May 2019, 14:28:36 UTC · Discuss



Temporary pause

We're having trouble with a nanoHUB server that sends jobs to the BOINC server for WU production. We had to temporarily halt WU production while we fix the other machine.

30 Apr 2019, 11:36:09 UTC · Discuss



Another round of upgrades complete

We are back up again. The BOINC server for this project is connected to several other key parts of the nanoHUB infrastructure. We had to upgrade the BOINC server in January to support the volume of WUs our crunchers consume. The WU's are created from nanoHUB input files by another server, and we had to do significant upgrades to that server. The database of in-progress jobs (via BOINC and other venues) was consuming all the memory on that machine, leading to swapping. That server is critical for all nanoHUB jobs, including courses at several universities, so the DB upgrade had to be thoroughly tested before rolling it out. We are tiptoeing back into the creation of WUs. TLDR: our crunchers consume jobs at a rate at least one order of magnitude higher than our other computing venues, so it stresses all the infrastructure. We're watching everything closely.

20 Mar 2019, 16:38:35 UTC · Discuss



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