#16 error: "No such file or directory" reading key "net.netflow.

[Anonymous]

Sometimes after server reload any flows do not export to netflow collector.
sysctl -a | grep netflow:
net.netflow.active_timeout = 1800
net.netflow.inactive_timeout = 15
net.netflow.debug = 0
net.netflow.hashsize = 65536
error: "No such file or directory" reading key "net.netflow.sndbuf"
net.netflow.destination = 127.0.0.1:9000
net.netflow.aggregation = none
net.netflow.maxflows = 2000000

I found only 1 decision - manualy reload module.
After reload module works fine. And in sysctl -a | grep netflow:
net.netflow.active_timeout = 1800
net.netflow.inactive_timeout = 15
net.netflow.debug = 0
net.netflow.hashsize = 65536
net.netflow.sndbuf = 260000
net.netflow.destination = 127.0.0.1:9000
net.netflow.aggregation = none
net.netflow.maxflows = 2000000

[Nobody/Anonymous]

I have understood!
I put module initialization in /etc/modules.autoload.d/kernel-2.6
So module loaded on boot runlevel when there is no any interface including lo.
Now I load module after creating lo.

[ABC]

You are right, module should be loaded after network infrastructure.

[Nobody/Anonymous]

Please, add this note to README

[ABC]

Adding this to troubleshoting section of README:

3) For autoloading module after reboot: set net.netflow.destination (or load
module if it set on load) after interfaces loaded. Becasue module need
exporting interface up (usually lo) to establish export connection.