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NOTICE: This version of the NSF Unidata web site (archive.unidata.ucar.edu) is no longer being updated.
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On Thu, 21 Aug 2014, Daniel Forrest wrote:
I recently had a similar problem using the GOES-R simulator. Just a guess, but if the data is coming in via UDP and the data rate is higher than it was before then it may be a case of too little kernel buffer space. You can try this (assuming this is Linux): cat /proc/sys/net/core/rmem_max cat /proc/sys/net/core/wmem_max cat /proc/sys/net/core/rmem_default cat /proc/sys/net/core/wmem_default Save these values, if this doesn't help you can reset them. echo 16777216 >/proc/sys/net/core/rmem_max echo 16777216 >/proc/sys/net/core/wmem_max echo 16777216 >/proc/sys/net/core/rmem_default echo 16777216 >/proc/sys/net/core/wmem_default And restart LDM. If this works you can add these values to /etc/sysctl.conf.
Yep, we had those maxed out already. But it looks like it's on Globecomm's end now...I hope. As Tyler said, we have a fast server with plenty of memory, and Patrick Francis has a monster server that should handle this with complete ease. So, they have 9 days before the feed gets commissioned... time to get this straightened out. Out of order packets... and dropped packets. It's 2011 all over again! Gilbert ******************************************************************************* Gilbert Sebenste ******** (My opinions only!) ****** Staff Meteorologist, Northern Illinois University **** E-mail: sebenste@xxxxxxxxxxxxxxxxxxxxx *** web: http://weather.admin.niu.edu ** Twitter: http://www.twitter.com/NIU_Weather ** Facebook: http://www.facebook.com/niu.weather * *******************************************************************************
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