# Changes in YML File Aren't Getting Loaded When Running Prometheus

**URL:** <https://discuss.prometheus.io/t/changes-in-yml-file-arent-getting-loaded-when-running-prometheus/347>\
**Category:** Prometheus server\
**Created:** [June 29, 2021, 6:29pm UTC](https://discuss.prometheus.io/t/changes-in-yml-file-arent-getting-loaded-when-running-prometheus/347 "2021-06-29T18:29:58Z")\
**Posts on this page:** 1\
**Page:** 1

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**Author:** ![BesterJester](https://avatars.discourse-cdn.com/v4/letter/b/ed8c4c/32.png) [@BesterJester](https://discuss.prometheus.io/u/BesterJester)\
**Post date:** [June 29, 2021, 6:29pm UTC](https://discuss.prometheus.io/t/changes-in-yml-file-arent-getting-loaded-when-running-prometheus/347/1 "2021-06-29T18:29:59Z")

</div>

I need to change the port that Prometheus scrapes from. In the YML file, no matter what I change the `targets` parameter to, Prometheus continues to scrape from the default `9090` port. I’ve even changed the target port to `targets: ['foo']` and I’m still able to run Prometheus without error. This tells me the YML file isn’t getting loaded or updating. Below is the troubleshooting I’ve gone through.

* * *

After downloading Prometheus, I change directories into the directory containing the YML file. There is only one YML file in the entire directory, so I know I am editing the correct YML file.

> (py3\_venv) jesse@ldp-jesse:~/Downloads/prometheus-2.28.0.linux-amd64$ ls  
> console\_libraries consoles data LICENSE NOTICE prometheus prometheus.yml promtool  
> (py3\_venv) jesse@ldp-jesse:~/Downloads/prometheus-2.28.0.linux-amd64$ find . -name “\*.yml”  
> ./prometheus.yml

I’m running the Prometheus server with the following command: `./prometheus --config.file=prometheus.yml`

Here is the scrape target in `prometheus.yml`:

> scrape\_configs:  
> -job\_name: ‘prometheus’  
> static\_configs:  
> -targets: [‘localhost:9190’]

The target was originally `['localhost:9090']` and note I changed it to `['localhost:9190']`. I’ve also tried changing it to `['0.0.0.0:9190']`, `['127.0.0.1:9190']` and `['foo']`. After making changes, I’ve tried re-starting the Prometheus server, restarting my computer, and verifying my changes using VIM. No matter what, when I use the command `netstat -tanp | grep LISTEN`, the below line keeps showing that Prometheus continues to scrape from `9090`:

> tcp6 0 0 :::9090 :::\* LISTEN 17383/./prometheus

I can’t understand it because, when I run the Prometheus server with the command `./prometheus --config.file=prometheus.yml`, I get the below printout, which states towards the end that the file `prometheus.yml` was loaded.

> (py3\_venv) jesse@ldp-jesse:~/Downloads/prometheus-2.28.0.linux-amd64$ ./prometheus --config.file=prometheus.yml  
> level=info ts=2021-06-29T18:29:25.426Z caller=main.go:388 msg=“No time or size retention was set so using the default time retention” duration=15d  
> level=info ts=2021-06-29T18:29:25.426Z caller=main.go:426 msg=“Starting Prometheus” version=“(version=2.28.0, branch=HEAD, revision=ff58416a0b0224bab1f38f949f7d7c2a0f658940)”  
> level=info ts=2021-06-29T18:29:25.426Z caller=main.go:431 build\_context=“(go=go1.16.5, user=root@32b9079a2740, date=20210621-15:45:36)”  
> level=info ts=2021-06-29T18:29:25.426Z caller=main.go:432 host\_details=“(Linux 5.4.0-47-generic #51~18.04.1-Ubuntu SMP Sat Sep 5 14:35:50 UTC 2020 x86\_64 [ldp-jesse.corp.vicarious.com](http://ldp-jesse.corp.vicarious.com) (none))”  
> level=info ts=2021-06-29T18:29:25.426Z caller=main.go:433 fd\_limits=“(soft=1024, hard=1048576)”  
> level=info ts=2021-06-29T18:29:25.426Z caller=main.go:434 vm\_limits=“(soft=unlimited, hard=unlimited)”  
> level=info ts=2021-06-29T18:29:25.428Z caller=web.go:541 component=web msg=“Start listening for connections” address=0.0.0.0:9090  
> level=info ts=2021-06-29T18:29:25.428Z caller=main.go:807 msg=“Starting TSDB …”  
> level=info ts=2021-06-29T18:29:25.429Z caller=repair.go:57 component=tsdb msg=“Found healthy block” mint=1624562004657 maxt=1624572000000 ulid=01F99NNNC0RNW87SGK4P6XG8T3  
> level=info ts=2021-06-29T18:29:25.429Z caller=repair.go:57 component=tsdb msg=“Found healthy block” mint=1624635909656 maxt=1624644000000 ulid=01F9A6RP7GPN84YPQ2X4WNSVH7  
> level=info ts=2021-06-29T18:29:25.429Z caller=repair.go:57 component=tsdb msg=“Found healthy block” mint=1624896099655 maxt=1624924800000 ulid=01F9B7EWJEX6XMRBPG8PNDHS76  
> level=info ts=2021-06-29T18:29:25.429Z caller=repair.go:57 component=tsdb msg=“Found healthy block” mint=1624948306437 maxt=1624953600000 ulid=01F9C5XKDRCAPEEMJQV2M6MSVA  
> level=info ts=2021-06-29T18:29:25.429Z caller=repair.go:57 component=tsdb msg=“Found healthy block” mint=1624924800000 maxt=1624946400000 ulid=01F9C5XKED2NVAMQF3EA4DQ8RR  
> ts=2021-06-29T18:29:25.430Z caller=log.go:124 component=web level=info msg=“TLS is disabled.” http2=false  
> level=info ts=2021-06-29T18:29:25.432Z caller=head.go:780 component=tsdb msg=“Replaying on-disk memory mappable chunks if any”  
> level=info ts=2021-06-29T18:29:25.433Z caller=head.go:794 component=tsdb msg=“On-disk memory mappable chunks replay completed” duration=364.936µs  
> level=info ts=2021-06-29T18:29:25.433Z caller=head.go:800 component=tsdb msg=“Replaying WAL, this may take a while”  
> level=warn ts=2021-06-29T18:29:25.441Z caller=head.go:767 component=tsdb msg=“Unknown series references” samples=10224 exemplars=0  
> level=info ts=2021-06-29T18:29:25.441Z caller=head.go:826 component=tsdb msg=“WAL checkpoint loaded”  
> level=info ts=2021-06-29T18:29:25.441Z caller=head.go:854 component=tsdb msg=“WAL segment loaded” segment=27 maxSegment=31  
> level=info ts=2021-06-29T18:29:25.442Z caller=head.go:854 component=tsdb msg=“WAL segment loaded” segment=28 maxSegment=31  
> level=info ts=2021-06-29T18:29:25.442Z caller=head.go:854 component=tsdb msg=“WAL segment loaded” segment=29 maxSegment=31  
> level=info ts=2021-06-29T18:29:25.442Z caller=head.go:854 component=tsdb msg=“WAL segment loaded” segment=30 maxSegment=31  
> level=info ts=2021-06-29T18:29:25.442Z caller=head.go:854 component=tsdb msg=“WAL segment loaded” segment=31 maxSegment=31  
> level=info ts=2021-06-29T18:29:25.442Z caller=head.go:860 component=tsdb msg=“WAL replay completed” checkpoint\_replay\_duration=8.494289ms wal\_replay\_duration=931.63µs total\_replay\_duration=9.807008ms  
> level=info ts=2021-06-29T18:29:25.443Z caller=main.go:834 fs\_type=EXT4\_SUPER\_MAGIC  
> level=info ts=2021-06-29T18:29:25.443Z caller=main.go:837 msg=“TSDB started”  
> level=info ts=2021-06-29T18:29:25.443Z caller=main.go:964 msg=“Loading configuration file” filename=prometheus.yml  
> level=info ts=2021-06-29T18:29:25.444Z caller=main.go:995 msg=“Completed loading of configuration file” filename=prometheus.yml totalDuration=362.341µs remote\_storage=1.17µs web\_handler=230ns query\_engine=498ns scrape=150.652µs scrape\_sd=17.733µs notify=15.123µs notify\_sd=6.966µs rules=712ns  
> level=info ts=2021-06-29T18:29:25.444Z caller=main.go:779 msg=“Server is ready to receive web requests.”