Re: [ldm-users] [noaaport] Thorns amongst the roses...


Dan.. thanks for the try :) gave it a shot on one of my relays, the same errors are occurring after restart.. perhaps it's at the source? Stonie mentioned something. .. here's a sampling after the edits and restart

Aug 21 09:08:05 dish2 noaaportIngester[17968] WARN: Gap in packet sequence: 90844815 to 90844848 [skipped 32] Aug 21 09:08:05 dish2 noaaportIngester[17968] WARN: Gap in packet sequence: 90844848 to 90844853 [skipped 4] Aug 21 09:08:05 dish2 noaaportIngester[17966] WARN: Gap in packet sequence: 169012121 to 169012162 [skipped 40] Aug 21 09:08:06 dish2 noaaportIngester[17966] WARN: Gap in packet sequence: 169012163 to 169012177 [skipped 13] Aug 21 09:08:06 dish2 noaaportIngester[17966] WARN: Gap in packet sequence: 169012177 to 169012250 [skipped 72] Aug 21 09:08:06 dish2 noaaportIngester[17966] WARN: Gap in packet sequence: 169012251 to 169012321 [skipped 69]
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.



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