Due to the current gap in continued funding from the U.S. National Science Foundation (NSF), the NSF Unidata Program Center has temporarily paused most operations. See NSF Unidata Pause in Most Operations for details.
Due to the current gap in continued funding from the U.S. National Science Foundation (NSF), the NSF Unidata Program Center has temporarily paused most operations. See NSF Unidata Pause in Most Operations for details.
Arthur, > Daryl et. al. -- > > I've had similar thoughts. When I brought up our new ldm server (P3 866, > 320MB, SCSI, RH 7.1, LDM 5.1.3) I tried to make a large queue (don't > remember how big) but found it to not allow queues larger than 2 GB. > Don't know what I was doing wrong since you've been able to get one to be > 4 GB. The other problem I had was that when I made a queue close to 2 GB, > the system ran for a day or so and then went into an I/O thrasing > condition which essentially jammed the system. I haven't figured that one > out yet; perhaps I will try installing the latest kernel patch sometime > and see if that makes a difference. I currently have a 1GB queue > (although 1.5 or so works okay I think) which holds about 3 hours of data. The Redhat errata page has lots of bugfixes, which has remarkably improved my system performance...especially the new kernel. > Since disk/storage is so cheap, having a large queue seems to make sense > these days. However, I would agree with Unidata's concerns that if there > was a larger scale outage such that many sites started trying to catch up > on many hours worth of data, this could present a networking load issue. > Hopefully this kind of situation wouldn't occur very often, though. > > Art. Maybe we can just restrict that to sites feeding others? Or if you're in paranoid mode, just top nodes (like UIUC, SSEC, etc)? In either case, a note to Daryl...thanks for the great public service. If I need it, I'll use it, but only in an emergency. ******************************************************************************* Gilbert Sebenste ******** Internet: gilbert@xxxxxxx (My opinions only!) ****** Staff Meteorologist, Northern Illinois University **** E-mail: sebenste@xxxxxxxxxxxxxxxxxxxxx *** web: http://weather.admin.niu.edu ** Work phone: 815-753-5492 * *******************************************************************************
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