Some ports which I maintain, send patches or keep local copy (because they do not get updated fast enough from upstream)
databases/influxdb: FreeBSD port of InfluxDB 1.1.0-(something).
net-mgmt/telegraf: WWW: https://influxdata.com/time-series-platform/telegraf/
net-mgmt/kapacitor: Kapacitor is InfluxDB's native data processing engine.
[outdated] sysutils/logstash-forwarder: FreeBSD port for LSF.