Added Troubleshooting Section

Needed to consolidate the troubleshooting tips in one place.

README.md

@@ -19,6 +19,11 @@
 
 ![Screenshot](Grafana-pfSense.png)
 
+## Running on
+
+    Grafana 6.7.1
+    Influxdb 1.7.10
+
 ## Configuration
 
 ### Grafana
@@ -44,20 +49,69 @@ I also included the config for Unbound DNS and it's commented out.  I'm not curr
 
 I put all my plugins in /usr/local/bin and set them to 555
 
-To troubleshoot plugins, add the following lines to the agent block in /usr/local/etc/telegraf.conf and send a HUP to the telegraf pid.
 
+I also included a wrapper script for Unbound DNS.  I'm not currently using it, but it's fully functional.
+   
+## Troubleshooting
+
+### Telegraf Plugins
+
+To troubleshoot plugins, add the following lines to the agent block in /usr/local/etc/telegraf.conf and send a HUP to the telegraf pid. You're going to need to do this from a ssh shell. One you update the config you are going to need to tell telegraf to read the new configs. If you restart telegraf from pfSense, this will not work since it will overwrite your changes.
+
+#### Telegraf Config
     debug = true
     quiet = false
     logfile = "/var/log/telegraf/telegraf.log"
+
+#### Restarting Telegraf
+    # ps -aux | grep -i telegraf
+    # kill -HUP <pid of telegraf proces>
     
-I also included a wrapper script for Unbound DNS.  I'm not currently using it, but it's fully functional.
+### InfluxDB
+When in doubt, run a few queries to see if the data you are looking for is being populated.
 
-### Running on
+    bash-4.4# influx
+    Connected to http://localhost:8086 version 1.7.10
+    InfluxDB shell version: 1.7.10
+    > show databases
+    name: databases
+    name
+    ----
+    pfsense
+    _internal
+    > use pfsense
+    Using database pfsense
+    > show measurements
+    name: measurements
+    name
+    ----
+    cpu
+    disk
+    diskio
+    dnsbl_log
+    gateways
+    interface
+    ip_block_log
+    mem
+    net
+    pf
+    processes
+    swap
+    system
+    temperature
+    > select * from system limit 20
+    name: system
+    time                host                     load1         load15        load5         n_cpus n_users uptime     uptime_format
+    ----                ----                     -----         ------        -----         ------ ------- ------     -------------
+    1585272640000000000 pfSense.home         0.0615234375  0.07861328125 0.0791015625  4      1       196870     2 days,  6:41
+    1585272650000000000 pfSense.home         0.05126953125 0.07763671875 0.076171875   4      1       196880     2 days,  6:41
+    1585272660000000000 pfSense.home         0.04296875    0.07666015625 0.0732421875  4      1       196890     2 days,  6:41
+    1585272670000000000 pfSense.home         0.03564453125 0.07568359375 0.0703125     4      1       196900     2 days,  6:41
+    1585272680000000000 pfSense.home         0.02978515625 0.07470703125 0.0673828125  4      1       196910     2 days,  6:41
+    1585272690000000000 pfSense.home         0.02490234375 0.07373046875 0.064453125   4      1       196920     2 days,  6:42
+    ...
 
-    Grafana 6.7.1
+## [Original Reddit thread](https://www.reddit.com/r/PFSENSE/comments/fsss8r/additional_grafana_dashboard/ "Originial Reddit thread")
-    Influxdb 1.7.10
-
-[Original Reddit thread](https://www.reddit.com/r/PFSENSE/comments/fsss8r/additional_grafana_dashboard/ "Originial Reddit thread")
 
 I was going to post this in the thread made by [/u/seb6596](https://www.reddit.com/u/seb6596 "/u/seb6596") since this is based on [their dashboard](https://www.reddit.com/r/PFSENSE/comments/fsf7f7/my_pfsense_monitor_dashboard_in_grafana/ "their dashboard"), but I made quite a few changes and wanted to include information that would get lost in the thread.