InfluxDB not getting data from hosts after upgrade

After upgrading to influxDB 1.3.6 on Friday, influx doesn’t seem to be receiving data from specific hosts. These hosts were sending data correctly before the upgrade.

Hosts are using collectd 5.7.2. I’m able to see collectd’s new data locally on the filesystems. However the data doesn’t seem to reach the influxdb server.

I’ve increased the max-series for the DB, with no effect. I’ve restarted both services.

tcpdump shows traffic reaching our influxdb host and port.

[root@graf1 ~]# tcpdump -i eth0 host
tcpdump: verbose output suppressed, use -v or -vv for full protocol decode
listening on eth0, link-type EN10MB (Ethernet), capture size 65535 bytes
15:49:39.526135 IP > UDP, length 1313
15:49:39.527008 IP > UDP, length 1335
15:49:39.531312 IP > UDP, length 1321