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NOTICE: This version of the NSF Unidata web site (archive.unidata.ucar.edu) is no longer being updated.
Current content can be found at unidata.ucar.edu.
To learn about what's going on, see About the Archive Site.
On Mon, 25 Oct 2010, Jeff Lake - Admin wrote:
Art and all,what I noticed first with this new system was a horrible lag in writing the NEXRAD3 and LIGHTNING files to disk watching the incoming feed ( ldmadmin watch -f NEXRAD3) the file time and my receive time were the expected 45sec to 90sec delay, but the write to disk was at least 4 minutes sometimes 6+ later ..it seems to have settled down been watching it today with all the radar returns across the conusdon't see any lag .. I use bin/pqmon every once and a while ..is there a way I can query the queue to see the max age it has for a certain product??just want to see where my problem lies if I see lags writing to disk again
Jeff,If your disk RPM isn't at least 7200, your I/O is going to be bad with Level2/3 feeds.
******************************************************************************* Gilbert Sebenste ******** (My opinions only!) ****** Staff Meteorologist, Northern Illinois University **** E-mail: sebenste@xxxxxxxxxxxxxxxxxxxxx *** web: http://weather.admin.niu.edu ** *******************************************************************************
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