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Sounds almost like a firewall rule blocking the port, that behaviour sounds familiar. Do you have iptables running on the receiver host?
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<div>mike
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<div><font face="Courier New">Michael Hart</font></div>
<div><font face="Courier New">Arctic Wolf Networks</font></div>
<div><font face="Courier New">M: 226-388-4773</font></div>
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<div>On Dec 17, 2013, at 2:44 PM, Craig Calef <<a href="mailto:craig.calef@thecontrolgroup.com">craig.calef@thecontrolgroup.com</a>> wrote:</div>
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<div dir="ltr">Hi guys,
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<div>I seldom ever resort to asking on mailing lists for help but I've reached the end of my rope and, unfortunately, the 'Troubleshooting' section on the wiki.</div>
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<div>Simply put I have a collectd instance setup to listen for data from another collectd instance and writes the data into graphite. I can verify with 'netstat -lnp' that collectd is listening on the appropriate interface, I see data coming into the host
with `tpcdump` from my data source. Data from the 'receiver' collectd is getting into graphite (and rrd when i enable that plugin), but it never does anything with the remote metrics. I see in strace that collectd is binding to the port, but never see any
read calls when a packet comes in.</div>
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<div>Any advice or guidance on things to explore would be greatly, greatly appreciated. I really really want to use collectd to work for this application and this is my last hope for getting it working.</div>
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<div>Best,</div>
<div>Craig Calef</div>
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