Dashboards & Visualizations

Format Chart for Network Performance

trb48
Engager

Here is a sample of my log:

 

 

{
   NIC: {
     eth2: {
       linkSpeedInKbps: 10000000
       macAddress: XX:XX:XX:XX:XX:XX
       name: eth2
       stats: {
         network.dropped_received_pkts: 0
         network.dropped_transmitted_pkts: 0
         network.error_received_pkts: 0
         network.error_transmitted_pkts: 0
         network.received_pkts: 760176
         network.received_rate_kBps: 19842
         network.transmitted_pkts: 3140672
         network.transmitted_rate_kBps: 143753
       }
     }
     eth3: {
       linkSpeedInKbps: 10000000
       macAddress: XX:XX:XX:XX:XX:XX
       name: eth3
       stats: {
         network.dropped_received_pkts: 0
         network.dropped_transmitted_pkts: 0
         network.error_received_pkts: 0
         network.error_transmitted_pkts: 0
         network.received_pkts: 1068
         network.received_rate_kBps: 2
         network.transmitted_pkts: 2
         network.transmitted_rate_kBps: 0
       }
     }
   }
nodeName: MyServer01
}

 

 

I am capturing basic network information on the servers in my environment. I would like to format a dashboard to look something like this:

trb48_0-1592577849481.png

 

I can't figure out how to get the chart to format correctly. I have tried the following:

 

 

index=mylogs sourcetype=serverstats nodeName=MyServer01

| chart  latest("NIC.*.name") as "*",latest("NIC.*.linkSpeedInKbps") as "* Speed", latest("NIC.*.macAddress") as "* MAC Address" by "NIC.*.name"

 

 

And I don't get any results.

 

I am capturing the information and logging it. I can change the format of the log if I need to. Does anyone have any ideas on how I can get this to work?

Labels (1)
0 Karma
1 Solution

to4kawa
Ultra Champion

I see. your query doesn't make table.

so, fields works wrong, I guess.

| stats latest(linkSpeedInKbps) as "Speed (in Kbps)"
, latest(macAddress) as "MAC"
, latest("stats.network.received_pkts") as "Rx Pkts"
, latest("stats.network.transmitted_pkts") as "Tx Pkts"
, latest("stats.network.dropped_received_pkts") as "Dropped Rx Pkts"
, latest("stats.network.dropped_transmitted_pkts") as "Dropped Tx Pkts"
, latest("stats.network.error_received_pkts") as "Rx Pkt Errors"
, latest("stats.network.error_transmitted_pkts") as "Tx Pkt Errors" by name

that's enough.

 

 

View solution in original post

0 Karma

trb48
Engager

I kind of got something working...not ideal, though:

index=mylogs sourcetype=serverstats nodeName=MyServer01 

| stats latest("NIC.eth2.name") as "Host NIC", latest("NIC.eth2.linkSpeedInKbps") as "Speed (in Kbps)", latest("NIC.eth2.macAddress") as "MAC", latest("NIC.eth2.stats.network.received_pkts") as "Rx Pkts", latest("NIC.eth2.stats.network.transmitted_pkts") as "Tx Pkts", latest("NIC.eth2.stats.network.dropped_received_pkts") as "Dropped Rx Pkts", latest("NIC.eth2.stats.network.dropped_transmitted_pkts") as "Dropped Tx Pkts", latest("NIC.eth2.stats.network.error_received_pkts") as "Rx Pkt Errors", latest("NIC.eth2.stats.network.error_transmitted_pkts") as "Tx Pkt Errors"
| append [
		search index=mylogs sourcetype=serverstats nodeName=MyServer01 

		| stats latest("NIC.eth3.name") as "Host NIC", latest("NIC.eth3.linkSpeedInKbps") as "Speed (in Kbps)", latest("NIC.eth3.macAddress") as "MAC", latest("NIC.eth3.stats.network.received_pkts") as "Rx Pkts", latest("NIC.eth3.stats.network.transmitted_pkts") as "Tx Pkts", latest("NIC.eth3.stats.network.dropped_received_pkts") as "Dropped Rx Pkts", latest("NIC.eth3.stats.network.dropped_transmitted_pkts") as "Dropped Tx Pkts", latest("NIC.eth3.stats.network.error_received_pkts") as "Rx Pkt Errors", latest("NIC.eth3.stats.network.error_transmitted_pkts") as "Tx Pkt Errors"
		]

 

If I use a port other than "eth2" or "eth3" I am out of luck. Is there a better way to do this?

0 Karma

to4kawa
Ultra Champion

sample:

| makeresults 
| eval _raw="{\"NIC\":{\"eth2\":{\"linkSpeedInKbps\":10000000,\"macAddress\":\"XX:XX:XX:XX:XX:XX\",\"name\":\"eth2\",\"stats\":{\"network.dropped_received_pkts\":0,\"network.dropped_transmitted_pkts\":0,\"network.error_received_pkts\":0,\"network.error_transmitted_pkts\":0,\"network.received_pkts\":760176,\"network.received_rate_kBps\":19842,\"network.transmitted_pkts\":3140672,\"network.transmitted_rate_kBps\":143753}},\"eth3\":{\"linkSpeedInKbps\":10000000,\"macAddress\":\"XX:XX:XX:XX:XX:XX\",\"name\":\"eth3\",\"stats\":{\"network.dropped_received_pkts\":0,\"network.dropped_transmitted_pkts\":0,\"network.error_received_pkts\":0,\"network.error_transmitted_pkts\":0,\"network.received_pkts\":1068,\"network.received_rate_kBps\":2,\"network.transmitted_pkts\":2,\"network.transmitted_rate_kBps\":0}}},\"nodeName\":\"MyServer01\"}" 
| spath nodeName 
| spath NIC output=nic 
| rex field=nic mode=sed "s/,(\"eth\d\":)/#\1/g" 
| makemv delim="#" nic 
| rex field=nic mode=sed "s/.?\"eth\d\":(.*)}/\1/" 
| mvexpand nic 
| spath input=nic 
| fields - _raw nic

recommend:

index=mylogs sourcetype=serverstats nodeName=MyServer01
| spath nodeName 
| spath NIC output=nic 
| rex field=nic mode=sed "s/,(\"eth\d\":)/#\1/g" 
| makemv delim="#" nic 
| rex field=nic mode=sed "s/.?\"eth\d\":(.*)}/\1/" 
| mvexpand nic 
| spath input=nic 
| fields - _raw nic

please modify field names using rename

 

0 Karma

trb48
Engager

When I use your top section (where you create the JSON log in Splunk using the "| makeresults" command) everything works as expected. When I use the second solution I get this instead of a table:

trb48_0-1592610146393.png

There is more in the log than what I initially posted. I kept the rest of it out (so we could focus on the project at hand). What am I missing?

0 Karma

to4kawa
Ultra Champion

please try line by line. 

0 Karma

trb48
Engager

I carefully compared your example with the results against logs in my environment. Everything is the same up until the last line:

| fields - _raw nic

 

In your example you create a variable named "_raw" where you create the contents of the log. In my environment the log is already there (it does't need to be created). There must be a different field that needs to be removed. Do you know what it is? 

0 Karma

to4kawa
Ultra Champion

I see. your query doesn't make table.

so, fields works wrong, I guess.

| stats latest(linkSpeedInKbps) as "Speed (in Kbps)"
, latest(macAddress) as "MAC"
, latest("stats.network.received_pkts") as "Rx Pkts"
, latest("stats.network.transmitted_pkts") as "Tx Pkts"
, latest("stats.network.dropped_received_pkts") as "Dropped Rx Pkts"
, latest("stats.network.dropped_transmitted_pkts") as "Dropped Tx Pkts"
, latest("stats.network.error_received_pkts") as "Rx Pkt Errors"
, latest("stats.network.error_transmitted_pkts") as "Tx Pkt Errors" by name

that's enough.

 

 

0 Karma

trb48
Engager

@to4kawa ,

Thank you so much! This is exactly what I was looking for. Here is what I used in my actual dashboard:

index=myindex sourcetype=mynodestats
	nodeName=$node_name$  

| spath nodeName 
| spath NIC output=nic 
| rex field=nic mode=sed "s/,(\"eth\d\":)/#\1/g" 
| makemv delim="#" nic 
| rex field=nic mode=sed "s/.?\"eth\d\":(.*)}/\1/" 
| mvexpand nic 
| spath input=nic 
| fields - _raw nic

| stats latest(linkSpeedInKbps) as "Speed (in Kbps)"
, latest(macAddress) as "MAC"
, latest("stats.network.received_pkts") as "Rx Pkts"
, latest("stats.network.transmitted_pkts") as "Tx Pkts"
, latest("stats.network.dropped_received_pkts") as "Dropped Rx Pkts"
, latest("stats.network.dropped_transmitted_pkts") as "Dropped Tx Pkts"
, latest("stats.network.error_received_pkts") as "Rx Pkt Errors"
, latest("stats.network.error_transmitted_pkts") as "Tx Pkt Errors" by name

 

Worked like a charm!

0 Karma
Get Updates on the Splunk Community!

Introducing Splunk Enterprise 9.2

WATCH HERE! Watch this Tech Talk to learn about the latest features and enhancements shipped in the new Splunk ...

Adoption of RUM and APM at Splunk

    Unleash the power of Splunk Observability   Watch Now In this can't miss Tech Talk! The Splunk Growth ...

Routing logs with Splunk OTel Collector for Kubernetes

The Splunk Distribution of the OpenTelemetry (OTel) Collector is a product that provides a way to ingest ...