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.
On Fri, 19 Jan 2007, I wrote:
I am also seeing this from my Level 2 (NEXRAD2) feed:Jan 20 05:26:45 weather3 notam.atmos.uiuc.edu[6135] WARN: Product from "bdds-kshv.nexrad.noaa.gov_v_notam.atmos.uiuc.edu" was created too far in the future: 12c539f8fae232ec8713bb7dbd22a9e7 17330 20070120052835.334 NEXRAD2 193040 L2-BZIP2/KSHV/20070120052324/193/40Jan 20 05:26:45 weather3 notam.atmos.uiuc.edu[6135] WARN: This will degrade performance when downstream LDM-s reconnect. Ensure that local and origination clocks are accurate.
By the way, my normal LDM logs are around 1 MB in size per day. With the two inaccurate LEVEL2 data feed clock sites, that has swelled to 10 mb/day. If a minor calamity were to occur where NTP servers freaked out, this could cause problems for those with smaller disks/storage areas. I absolutely and wholeheartedly recommend this go forward, but really, once per minute---heck, even once per 5, 10 or maybe 15 minutes notification is enough, as most log files aren't big anyway.
OR...Thinking out of the box, can this be made into a separate log file, or have options to emailed to the administrator, put on the console screen?
Also, when do we get notified? If you're 3 seconds off, does anyone care?If an NTP ping happens once a day, and the clock is fast/slow (as my desktop is, loses 30 seconds per day for whatever reason), 5 seconds off could produce a ton of messages that will quickly become the "cry wolf" syndrome.
Again, let me stress, I am all for it, let's do this! But, I don't want a machine slowing down or crashing if a serious problem occurs upstream from me due to excessive log writing. What does everyone else think?
My $.76, adjusted for high gas prices. ******************************************************************************* Gilbert Sebenste ******** (My opinions only!) ****** Staff Meteorologist, Northern Illinois University **** E-mail: sebenste@xxxxxxxxxxxxxxxxxxxxx *** web: http://weather.admin.niu.edu ** *******************************************************************************
ldm-users archives: