Comments for Lance Albertson http://www.lancealbertson.com Musings of a geek, jazz performer, and an OSUOSL sysadmin Tue, 24 May 2011 16:15:58 +0100 hourly 1 http://wordpress.org/?v=3.2.1 Comment on Rebalancing Ganeti Clusters by Iustin Pop http://www.lancealbertson.com/2011/05/rebalancing-ganeti-clusters/comment-page-1/#comment-1356 Iustin Pop Tue, 24 May 2011 16:15:58 +0000 http://www.lancealbertson.com/?p=396#comment-1356 FYI, if you run hbal directly on the master node, you can allow it to submit the jobs directly, via "hbal -L -X" (from execute). In this mode, it knows how to split jobs into job sets that only touch disjunct nodes; this helps with increasing parallelisation; it sometimes can schedule 3 or so jobs in parallel, instead of only one-by-one. Thanks for the nice blog post! iustin FYI, if you run hbal directly on the master node, you can allow it to submit the jobs directly, via “hbal -L -X” (from execute). In this mode, it knows how to split jobs into job sets that only touch disjunct nodes; this helps with increasing parallelisation; it sometimes can schedule 3 or so jobs in parallel, instead of only one-by-one.

Thanks for the nice blog post!
iustin

]]> Comment on Facebook Prineville Datacenter by Facebook in Prineville, a slightly different view « Propeller-heads Unite! http://www.lancealbertson.com/2011/04/facebook-prineville-datacenter/comment-page-1/#comment-1323 Facebook in Prineville, a slightly different view « Propeller-heads Unite! Tue, 19 Apr 2011 21:04:19 +0000 http://www.lancealbertson.com/?p=378#comment-1323 [...] blowers. The computing technology is fascinating and ground-breaking, but they’ve been covered exhaustively elsewhere. I’d like to spend some time talking about something a bit less sexy [...] [...] blowers. The computing technology is fascinating and ground-breaking, but they’ve been covered exhaustively elsewhere. I’d like to spend some time talking about something a bit less sexy [...]

]]> Comment on Facebook Prineville Datacenter by Rohit http://www.lancealbertson.com/2011/04/facebook-prineville-datacenter/comment-page-1/#comment-1297 Rohit Sun, 17 Apr 2011 18:43:31 +0000 http://www.lancealbertson.com/?p=378#comment-1297 holy cows!!!! this is freaking awesome..i remember visiting Panasonic data center in Secaucus, NJ, it was pretty noisy, two people cant talk normally unless they shout... holy cows!!!! this is freaking awesome..i remember visiting Panasonic data center in Secaucus, NJ, it was pretty noisy, two people cant talk normally unless they shout…

]]> Comment on Facebook Prineville Datacenter by lance http://www.lancealbertson.com/2011/04/facebook-prineville-datacenter/comment-page-1/#comment-1282 lance Sun, 17 Apr 2011 06:29:52 +0000 http://www.lancealbertson.com/?p=378#comment-1282 Yup, that was what I was told. They actually could put more in but this was a happy median they figured out. I think there was a total of 8 of those machines in each rack so it adds up quickly! Yup, that was what I was told. They actually could put more in but this was a happy median they figured out. I think there was a total of 8 of those machines in each rack so it adds up quickly!

]]> Comment on Facebook Prineville Datacenter by Ilya http://www.lancealbertson.com/2011/04/facebook-prineville-datacenter/comment-page-1/#comment-1281 Ilya Sun, 17 Apr 2011 06:23:59 +0000 http://www.lancealbertson.com/?p=378#comment-1281 Is that REALLY 72 GB of RAM in each memcached server? Is that REALLY 72 GB of RAM in each memcached server?

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