Working of Textfile Collector.

Yagyansh S. Kumar

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Mar 7, 2020, 12:01:41 PM3/7/20

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Hi. I am just now able to get my head around the working of textfile collector. Can someone explain or provide a good link to understand its working?

Thanks!

Murali Krishna Kanagala

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Mar 7, 2020, 1:31:35 PM3/7/20

to Yagyansh S. Kumar, Prometheus Users

Just drop a text file with data in Prometheus format and pass it as a command line arguments on your node exporter.

https://prometheus.io/docs/concepts/data_model/

https://github.com/prometheus/node_exporter/blob/master/README.md

On Sat, Mar 7, 2020, 11:01 AM Yagyansh S. Kumar <yagyans...@gmail.com> wrote:

Hi. I am just now able to get my head around the working of textfile collector. Can someone explain or provide a good link to understand its working?

Thanks!

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Yagyansh S. Kumar

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Mar 7, 2020, 3:16:16 PM3/7/20

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Is it necessary that the output should be a float value? What if I want to scrape something else?

For eg. I want to scrape the version of VMWare-Tools running in the VM. I have stored that in a file in Prometheus format but I am getting the below error:

text format parsing error in line 1: expected float as value, got "'10.3.10.10540'"

The bold is the output that I need to push to prometheus.

On Sunday, March 8, 2020 at 12:01:35 AM UTC+5:30, Murali Krishna Kanagala wrote:

Just drop a text file with data in Prometheus format and pass it as a command line arguments on your node exporter.

https://prometheus.io/docs/concepts/data_model/

https://github.com/prometheus/node_exporter/blob/master/README.md

On Sat, Mar 7, 2020, 11:01 AM Yagyansh S. Kumar <yagyans...@gmail.com> wrote:

Hi. I am just now able to get my head around the working of textfile collector. Can someone explain or provide a good link to understand its working?

Thanks!

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Stuart Clark

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Mar 7, 2020, 3:17:55 PM3/7/20

to Yagyansh S. Kumar, Prometheus Users

On 07/03/2020 20:16, Yagyansh S. Kumar wrote:

Is it necessary that the output should be a float value? What if I want to scrape something else?

For eg. I want to scrape the version of VMWare-Tools running in the VM. I have stored that in a file in Prometheus format but I am getting the below error:

text format parsing error in line 1: expected float as value, got "'10.3.10.10540'"

The bold is the output that I need to push to prometheus.

Prometheus only deals in floats, but labels can be any string.

So for this case it's common to set the value to "1" and then have a "version" tag.

On Sunday, March 8, 2020 at 12:01:35 AM UTC+5:30, Murali Krishna Kanagala wrote:

Just drop a text file with data in Prometheus format and pass it as a command line arguments on your node exporter.

https://prometheus.io/docs/concepts/data_model/

https://github.com/prometheus/node_exporter/blob/master/README.md

On Sat, Mar 7, 2020, 11:01 AM Yagyansh S. Kumar <yagyans...@gmail.com> wrote:

Hi. I am just now able to get my head around the working of textfile collector. Can someone explain or provide a good link to understand its working?

Thanks!

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Murali Krishna Kanagala

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Mar 7, 2020, 4:03:30 PM3/7/20

to Yagyansh S. Kumar, Prometheus Users

Also, did you try using the vmstat command line flag on node exporter?

Brian Candler

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Mar 8, 2020, 3:52:21 AM3/8/20

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The vmstat collector isn't anything to do with VMWare: it returns stats about the Linux virtual memory subsystem from /proc/vmstat.

$ curl ..../metrics | grep -i vmstat

...

node_scrape_collector_duration_seconds{collector="vmstat"} 0.000644674

node_scrape_collector_success{collector="vmstat"} 1

# HELP node_vmstat_oom_kill /proc/vmstat information field oom_kill.

# TYPE node_vmstat_oom_kill untyped

node_vmstat_oom_kill 0

# HELP node_vmstat_pgfault /proc/vmstat information field pgfault.

# TYPE node_vmstat_pgfault untyped

node_vmstat_pgfault 2.48255587e+09

# HELP node_vmstat_pgmajfault /proc/vmstat information field pgmajfault.

# TYPE node_vmstat_pgmajfault untyped

node_vmstat_pgmajfault 1.4914231e+07

# HELP node_vmstat_pgpgin /proc/vmstat information field pgpgin.

# TYPE node_vmstat_pgpgin untyped

node_vmstat_pgpgin 1.4020742e+08

# HELP node_vmstat_pgpgout /proc/vmstat information field pgpgout.

# TYPE node_vmstat_pgpgout untyped

node_vmstat_pgpgout 1.040636696e+09

# HELP node_vmstat_pswpin /proc/vmstat information field pswpin.

# TYPE node_vmstat_pswpin untyped

node_vmstat_pswpin 19131

# HELP node_vmstat_pswpout /proc/vmstat information field pswpout.

# TYPE node_vmstat_pswpout untyped

node_vmstat_pswpout 311500

For examples of exposing the software version as a prometheus label, see:

https://www.robustperception.io/exposing-the-software-version-to-prometheus

https://www.robustperception.io/how-to-have-labels-for-machine-roles

Murali Krishna Kanagala

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Mar 8, 2020, 8:39:48 AM3/8/20

to Brian Candler, Prometheus Users

Good to know that vmstat is for a different purpose.

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Rishiraj khandelwal

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Apr 14, 2020, 1:58:16 PM4/14/20

to Prometheus Users

Hi Stuart ,

Can you also suggest me which matric or exporter will be useful for the following scenario where I wish to monitor my SIEBEL application component status and display them in different colors in grafana.

(Component_Name: EAI, Status : Online l ServerName: XNZ)

(Component_Name: WF, Status : Shutdown l ServerName: XNZ)

(Component_Name: JMS, Status : Online l ServerName: XNZ)

Thanks,

Rishi

On Sunday, 8 March 2020 01:47:55 UTC+5:30, Stuart Clark wrote:

On 07/03/2020 20:16, Yagyansh S. Kumar wrote:

Is it necessary that the output should be a float value? What if I want to scrape something else?

For eg. I want to scrape the version of VMWare-Tools running in the VM. I have stored that in a file in Prometheus format but I am getting the below error:

text format parsing error in line 1: expected float as value, got "'10.3.10.10540'"

The bold is the output that I need to push to prometheus.

Prometheus only deals in floats, but labels can be any string.

So for this case it's common to set the value to "1" and then have a "version" tag.

On Sunday, March 8, 2020 at 12:01:35 AM UTC+5:30, Murali Krishna Kanagala wrote:

Just drop a text file with data in Prometheus format and pass it as a command line arguments on your node exporter.

https://prometheus.io/docs/concepts/data_model/

https://github.com/prometheus/node_exporter/blob/master/README.md

On Sat, Mar 7, 2020, 11:01 AM Yagyansh S. Kumar <yagyans...@gmail.com> wrote:

Hi. I am just now able to get my head around the working of textfile collector. Can someone explain or provide a good link to understand its working?

Thanks!

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Stuart Clark

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