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Technical News :
It's Catching Up (Oct 21 2008)
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Author | Message |
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Matt Lebofsky Send message Joined: 1 Mar 99 Posts: 1444 Credit: 957,058 RAC: 0 |
Today had the weekly outage for the mysql backup/compression/etc. Bob did some index manipulation on the beta project while we were down - to see if we can perform as well with less indexes (now that mysql merges indexes if possible on its own). During the outage one of bambi's 24 drives failed, or at least seemed to. A spare has been pulled in and is rebuilding the array now. The forums were pretty slow yesterday - actually everything was. Queues were filling, storage was maxed out, servers and databases was slowed by all the above, causing all kinds of headaches. However overnight the dams finally broke through and everything more or less cleared up on its own. I like when that happens. About our bandwidth.. We do have *two* 100Mbit connections to the world. First is Hurricane Electric (HE), which is the what SETI pays for, and the other is the link supplied by campus which is shared by the entire lab. The HE traffic is strictly result uploads and workunit downloads, with occasional archival transfers to offsite storage. Everything else - most of the archival transfers, the public web sites, etc. go over the very underutilized campus link. So if there are web site connectivity problems, it has nothing to do with a maxed out link - it's probably due to the database server being overloaded, or something else. - Matt -- BOINC/SETI@home network/web/science/development person -- "Any idiot can have a good idea. What is hard is to do it." - Jeanne-Claude |
Neil Blaikie Send message Joined: 17 May 99 Posts: 143 Credit: 6,652,341 RAC: 0 |
Thanks for the update Matt and good job all of you as always. Hope the Air Con guys managed to get that issue fixed as well. Is the hardware requirement list up to date? Someone in the wide world of users may have spares that could be donated that could be of use (extra drives etc) |
Matt Lebofsky Send message Joined: 1 Mar 99 Posts: 1444 Credit: 957,058 RAC: 0 |
Is the hardware requirement list up to date? Someone in the wide world of users may have spares that could be donated that could be of use (extra drives etc) Thanks for asking! It's fairly up to date. Server wise we are holding steady with what we currently have (both in use and waiting to be in use), though brand new upgrades are nice. We could always use more SATA drives. Just lost a 500GB one today, for example. - Matt -- BOINC/SETI@home network/web/science/development person -- "Any idiot can have a good idea. What is hard is to do it." - Jeanne-Claude |
Blurf Send message Joined: 2 Sep 06 Posts: 8962 Credit: 12,678,685 RAC: 0 |
Is the hardware requirement list up to date? Someone in the wide world of users may have spares that could be donated that could be of use (extra drives etc) FYI SATA drives are on the Hardware Donations List. |
Bruno G. Olsen & ESEA @ greenholt Send message Joined: 15 May 99 Posts: 875 Credit: 4,386,984 RAC: 0 |
So if there are web site connectivity problems, it has nothing to do with a maxed out link - it's probably due to the database server being overloaded, or something else. well, downloading xml stats files have been extremely difficult lately. It's as if connection it totally lost midway. Sometimes I get 2 files sometimes three (of the five files). Asked Willy of boincstats.com, and he has the same trouble |
PhonAcq Send message Joined: 14 Apr 01 Posts: 1656 Credit: 30,658,217 RAC: 1 |
Yeah, I'm still frequently getting the gross pause reported; much more than I'm used to, but I'm still willing to blame Comcast at this point. |
RandyC Send message Joined: 20 Oct 99 Posts: 714 Credit: 1,704,345 RAC: 0 |
Yeah, I'm still frequently getting the gross pause reported; much more than I'm used to, but I'm still willing to blame Comcast at this point. Yeah, but it's more fun to blame Misfit. |
PhonAcq Send message Joined: 14 Apr 01 Posts: 1656 Credit: 30,658,217 RAC: 1 |
But he may be getting a "complex". |
DJStarfox Send message Joined: 23 May 01 Posts: 1066 Credit: 1,226,053 RAC: 2 |
Yeah, I'm still frequently getting the gross pause reported; much more than I'm used to, but I'm still willing to blame Comcast at this point. I get DNS lookup pauses with BOINC. So annoying. |
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