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SigNoz Server Setup Issue: Connection Errors

TLDR Ruslan faced issues setting up SigNoz server, encountering connection errors. vishal-signoz suggested ensuring the machine port is open for exporter, checking OTLP collector logs, and using yaml file validator for troubleshooting. However, the issue remains unresolved.

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2mo

Sep 15, 2023 (2 months ago)

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Ruslan

07:31 AM

Hello, Support team. Hope all you are doing well.
This is Ruslan from Ukraine.
I have set up the SigNoz server on hosting and get some erros: Please check the screenshot.

[book@stage ]$ php htdocs/signoz.php 
Endpoint: 
Service Name: BookRetreats-PHP-Server
Insecure: true
Starting OTLP example[2023-09-14T13:24:41.005846+00:00] php-otlp-example.ERROR: Export failure {"exception":"[object] (RuntimeException(code: 0): Export retry limit exceeded at /var/www/html/bookretreats.com/stage.bookretreats.com/vendor/open-telemetry/sdk/Common/Export/Http/PsrTransport.php:114)\n[previous exception] [object] (Symfony\\Component\\HttpClient\\Psr18NetworkException(code: 0): Failed to connect to 194.140.199.96 port 4318: Connection refused for \"\". at /var/www/html/bookretreats.com/stage.bookretreats.com/vendor/symfony/http-client/Psr18Client.php:130)\n[previous exception] [object] (Symfony\\Component\\HttpClient\\Exception\\TransportException(code: 0): Failed to connect to 194.140.199.96 port 4318: Connection refused for \"\". at /var/www/html/bookretreats.com/stage.bookretreats.com/vendor/symfony/http-client/Chunk/ErrorChunk.php:65)\n[previous exception] [object] (Symfony\\Component\\HttpClient\\Exception\\TransportException(code: 0): Failed to connect to 194.140.199.96 port 4318: Connection refused for \"\". at /var/www/html/bookretreats.com/stage.bookretreats.com/vendor/symfony/http-client/Response/CurlResponse.php:324)","source":"OpenTelemetry\\Contrib\\Otlp\\SpanExporter"} []
[2023-09-14T13:24:41.217725+00:00] php-otlp-example.ERROR: Export failure {"exception":"[object] (RuntimeException(code: 0): Export retry limit exceeded at /var/www/html/bookretreats.com/stage.bookretreats.com/vendor/open-telemetry/sdk/Common/Export/Http/PsrTransport.php:114)\n[previous exception] [object] (Symfony\\Component\\HttpClient\\Psr18NetworkException(code: 0): Failed to connect to 194.140.199.96 port 4318: Connection refused for \"\". at /var/www/html/bookretreats.com/stage.bookretreats.com/vendor/symfony/http-client/Psr18Client.php:130)\n[previous exception] [object] (Symfony\\Component\\HttpClient\\Exception\\TransportException(code: 0): Failed to connect to 194.140.199.96 port 4318: Connection refused for \"\". at /var/www/html/bookretreats.com/stage.bookretreats.com/vendor/symfony/http-client/Chunk/ErrorChunk.php:65)\n[previous exception] [object] (Symfony\\Component\\HttpClient\\Exception\\TransportException(code: 0): Failed to connect to 194.140.199.96 port 4318: Connection refused for \"\". at /var/www/html/bookretreats.com/stage.bookretreats.com/vendor/symfony/http-client/Response/CurlResponse.php:324)","source":"OpenTelemetry\\Contrib\\Otlp\\SpanExporter"} []
[2023-09-14T13:24:41.513919+00:00] php-otlp-example.ERROR: Export failure {"exception":"[object] (RuntimeException(code: 0): Export retry limit exceeded at /var/www/html/bookretreats.com/stage.bookretreats.com/vendor/open-telemetry/sdk/Common/Export/Http/PsrTransport.php:114)\n[previous exception] [object] (Symfony\\Component\\HttpClient\\Psr18NetworkException(code: 0): Failed to connect to 194.140.199.96 port 4318: Connection refused for \"\". at /var/www/html/bookretreats.com/stage.bookretreats.com/vendor/symfony/http-client/Psr18Client.php:130)\n[previous exception] [object] (Symfony\\Component\\HttpClient\\Exception\\TransportException(code: 0): Failed to connect to 194.140.199.96 port 4318: Connection refused for \"\". at /var/www/html/bookretreats.com/stage.bookretreats.com/vendor/symfony/http-client/Chunk/ErrorChunk.php:65)\n[previous exception] [object] (Symfony\\Component\\HttpClient\\Exception\\TransportException(code: 0): Failed to connect to 194.140.199.96 port 4318: Connection refused for \"\". at /var/www/html/bookretreats.com/stage.bookretreats.com/vendor/symfony/http-client/Response/CurlResponse.php:324)","source":"OpenTelemetry\\Contrib\\Otlp\\SpanExporter"} []
[2023-09-14T13:24:41.796673+00:00] php-otlp-example.ERROR: Export failure {"exception":"[object] (RuntimeException(code: 0): Export retry limit exceeded at /var/www/html/bookretreats.com/stage.bookretreats.com/vendor/open-telemetry/sdk/Common/Export/Http/PsrTransport.php:114)\n[previous exception] [object] (Symfony\\Component\\HttpClient\\Psr18NetworkException(code: 0): Failed to connect to 194.140.199.96 port 4318: Connection refused for \"\". at /var/www/html/bookretreats.com/stage.bookretreats.com/vendor/symfony/http-client/Psr18Client.php:130)\n[previous exception] [object] (Symfony\\Component\\HttpClient\\Exception\\TransportException(code: 0): Failed to connect to 194.140.199.96 port 4318: Connection refused for \"\". at /var/www/html/bookretreats.com/stage.bookretreats.com/vendor/symfony/http-client/Chunk/ErrorChunk.php:65)\n[previous exception] [object] (Symfony\\Component\\HttpClient\\Exception\\TransportException(code: 0): Failed to connect to 194.140.199.96 port 4318: Connection refused for \"\". at /var/www/html/bookretreats.com/stage.bookretreats.com/vendor/symfony/http-client/Response/CurlResponse.php:324)","source":"OpenTelemetry\\Contrib\\Otlp\\SpanExporter"} []

OTLP complete!

The log from my php server for instrumentation.
Please help me to sovle this.

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vishal-signoz

07:47 AM

How did you instrument?
Are you using using http exporter or grpc?

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Ruslan

07:47 AM

http

07:49

Ruslan

07:49 AM

I've set up the server by docker standalone

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vishal-signoz

07:49 AM

Is <http://194.140.199.96:4318/v1/traces> accessible from your app?

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Ruslan

07:49 AM

no

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vishal-signoz

07:50 AM

That’s why there’s an error

07:50

vishal-signoz

07:50 AM

Please make sure exporter can export to 4318

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Ruslan

07:50 AM

how can configure that?

07:51

Ruslan

07:51 AM

I've changed nothing

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vishal-signoz

07:51 AM

How are you running SigNoz?

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Ruslan

07:52 AM

http://194.140.199.96:3301/
[email protected]
song99411

07:52

Ruslan

07:52 AM

please check here. 🙏

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vishal-signoz

07:53 AM

Please expose 4318 port of the machine where you are running signoz

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Ruslan

07:53 AM

to do that, what should I configure?

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vishal-signoz

07:54 AM

That depends on machine on which you are running

07:54

vishal-signoz

07:54 AM

Is it on AWS/GCP? You can go settings of that machine and expose 4318

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Ruslan

07:55 AM

Linux vmi1452187.contaboserver.net 5.4.0-105-generic #119-Ubuntu SMP Mon Mar 7 18:49:24 UTC 2022 x86_64 x86_64 x86_64 GNU/Linux
Purchased on Contabo

07:55

Ruslan

07:55 AM

Need to do with sudo command

07:59

Ruslan

07:59 AM

yes, I expose 4318 port of my machine.
with this command: sudo ufw allow 4318/tcp

What is the next?

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vishal-signoz

07:59 AM

Try sending data now

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Ruslan

08:00 AM

but still http://194.140.199.96:4318/v1/traces is not working

08:00

Ruslan

08:00 AM

Image 1 for

08:01

Ruslan

08:01 AM

after set up the SigNoz server primarily by docker standalone guide,
is there anything to change the setting for port 4318?

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vishal-signoz

08:03 AM

Can you please run: docker ps

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Ruslan

08:03 AM

Image 1 for

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vishal-signoz

08:04 AM

Your signoz otel collector is restarting

08:04

vishal-signoz

08:04 AM

Can you check logs of that

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Ruslan

08:05 AM

Image 1 for

08:05

Ruslan

08:05 AM

Still restarting

08:05

Ruslan

08:05 AM

what is the problem?

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vishal-signoz

08:06 AM

Check logs of otel collector by running: docker logs -f <container-id>

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Ruslan

08:11 AM

In the logs, there is a error in these lines.
is this wrong?

Image 1 for In the logs, there is a error in these lines.
is this wrong?

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vishal-signoz

08:11 AM

What’s the error?
Please share logs

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Ruslan

08:14 AM

Image 1 for

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vishal-signoz

08:14 AM

Check line 39

08:15

vishal-signoz

08:15 AM

Use a yaml file validator: https://www.yamllint.com/

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Ruslan

08:18 AM

Image 1 for

08:18

Ruslan

08:18 AM

the error occured in "cors:"

08:24

Ruslan

08:24 AM

what is the problem there, vishal-signoz

08:24

Ruslan

08:24 AM

?

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vishal-signoz

08:27 AM

Have you used tabs?
Can you copy and share you config here?

08:28

vishal-signoz

08:28 AM

endpoint should have colon :

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Ruslan

08:29 AM

ahh

08:29

Ruslan

08:29 AM

Ok, let me fix it and restart again

08:38

Ruslan

08:38 AM

Yes. It works

08:38

Ruslan

08:38 AM

Image 1 for

08:38

Ruslan

08:38 AM

But still same error
[book@stage stage.bookretreats.com]$ php htdocs/signoz.php
Endpoint: http://194.140.199.96:4318/v1/traces
Service Name: BookRetreats-PHP-Server
Insecure: true
Starting OTLP example[2023-09-14T13:24:41.005846+00:00] php-otlp-example.ERROR: Export failure {"exception":"[object] (RuntimeException(code: 0): Export retry limit exceeded at /var/www/html/bookretreats.com/stage.bookretreats.com/vendor/open-telemetry/sdk/Common/Export/Http/PsrTransport.php:114)\n[previous exception] [object] (Symfony\\Component\\HttpClient\\Psr18NetworkException(code: 0): Failed to connect to 194.140.199.96 port 4318: Connection refused for \"http://194.140.199.96:4318/v1/traces\". at /var/www/html/bookretreats.com/stage.bookretreats.com/vendor/symfony/http-client/Psr18Client.php:130)\n[previous exception] [object] (Symfony\\Component\\HttpClient\\Exception\\TransportException(code: 0): Failed to connect to 194.140.199.96 port 4318: Connection refused for \"http://194.140.199.96:4318/v1/traces\". at /var/www/html/bookretreats.com/stage.bookretreats.com/vendor/symfony/http-client/Chunk/ErrorChunk.php:65)\n[previous exception] [object] (Symfony\\Component\\HttpClient\\Exception\\TransportException(code: 0): Failed to connect to 194.140.199.96 port 4318: Connection refused for \"http://194.140.199.96:4318/v1/traces\". at /var/www/html/bookretreats.com/stage.bookretreats.com/vendor/symfony/http-client/Response/CurlResponse.php:324)","source":"OpenTelemetry\\Contrib\\Otlp\\SpanExporter"} []
[2023-09-14T13:24:41.217725+00:00] php-otlp-example.ERROR: Export failure {"exception":"[object] (RuntimeException(code: 0): Export retry limit exceeded at /var/www/html/bookretreats.com/stage.bookretreats.com/vendor/open-telemetry/sdk/Common/Export/Http/PsrTransport.php:114)\n[previous exception] [object] (Symfony\\Component\\HttpClient\\Psr18NetworkException(code: 0): Failed to connect to 194.140.199.96 port 4318: Connection refused for \"http://194.140.199.96:4318/v1/traces\". at /var/www/html/bookretreats.com/stage.bookretreats.com/vendor/symfony/http-client/Psr18Client.php:130)\n[previous exception] [object] (Symfony\\Component\\HttpClient\\Exception\\TransportException(code: 0): Failed to connect to 194.140.199.96 port 4318: Connection refused for \"http://194.140.199.96:4318/v1/traces\". at /var/www/html/bookretreats.com/stage.bookretreats.com/vendor/symfony/http-client/Chunk/ErrorChunk.php:65)\n[previous exception] [object] (Symfony\\Component\\HttpClient\\Exception\\TransportException(code: 0): Failed to connect to 194.140.199.96 port 4318: Connection refused for \"http://194.140.199.96:4318/v1/traces\". at /var/www/html/bookretreats.com/stage.bookretreats.com/vendor/symfony/http-client/Response/CurlResponse.php:324)","source":"OpenTelemetry\\Contrib\\Otlp\\SpanExporter"} []
[2023-09-14T13:24:41.513919+00:00] php-otlp-example.ERROR: Export failure {"exception":"[object] (RuntimeException(code: 0): Export retry limit exceeded at /var/www/html/bookretreats.com/stage.bookretreats.com/vendor/open-telemetry/sdk/Common/Export/Http/PsrTransport.php:114)\n[previous exception] [object] (Symfony\\Component\\HttpClient\\Psr18NetworkException(code: 0): Failed to connect to 194.140.199.96 port 4318: Connection refused for \"http://194.140.199.96:4318/v1/traces\". at /var/www/html/bookretreats.com/stage.bookretreats.com/vendor/symfony/http-client/Psr18Client.php:130)\n[previous exception] [object] (Symfony\\Component\\HttpClient\\Exception\\TransportException(code: 0): Failed to connect to 194.140.199.96 port 4318: Connection refused for \"http://194.140.199.96:4318/v1/traces\". at /var/www/html/bookretreats.com/stage.bookretreats.com/vendor/symfony/http-client/Chunk/ErrorChunk.php:65)\n[previous exception] [object] (Symfony\\Component\\HttpClient\\Exception\\TransportException(code: 0): Failed to connect to 194.140.199.96 port 4318: Connection refused for \"http://194.140.199.96:4318/v1/traces\". at /var/www/html/bookretreats.com/stage.bookretreats.com/vendor/symfony/http-client/Response/CurlResponse.php:324)","source":"OpenTelemetry\\Contrib\\Otlp\\SpanExporter"} []
[2023-09-14T13:24:41.796673+00:00] php-otlp-example.ERROR: Export failure {"exception":"[object] (RuntimeException(code: 0): Export retry limit exceeded at /var/www/html/bookretreats.com/stage.bookretreats.com/vendor/open-telemetry/sdk/Common/Export/Http/PsrTransport.php:114)\n[previous exception] [object] (Symfony\\Component\\HttpClient\\Psr18NetworkException(code: 0): Failed to connect to 194.140.199.96 port 4318: Connection refused for \"http://194.140.199.96:4318/v1/traces\". at /var/www/html/bookretreats.com/stage.bookretreats.com/vendor/symfony/http-client/Psr18Client.php:130)\n[previous exception] [object] (Symfony\\Component\\HttpClient\\Exception\\TransportException(code: 0): Failed to connect to 194.140.199.96 port 4318: Connection refused for \"http://194.140.199.96:4318/v1/traces\". at /var/www/html/bookretreats.com/stage.bookretreats.com/vendor/symfony/http-client/Chunk/ErrorChunk.php:65)\n[previous exception] [object] (Symfony\\Component\\HttpClient\\Exception\\TransportException(code: 0): Failed to connect to 194.140.199.96 port 4318: Connection refused for \"http://194.140.199.96:4318/v1/traces\". at /var/www/html/bookretreats.com/stage.bookretreats.com/vendor/symfony/http-client/Response/CurlResponse.php:324)","source":"OpenTelemetry\\Contrib\\Otlp\\SpanExporter"} []

OTLP complete!

08:38

Ruslan

08:38 AM

from my php server

Photo of md5-f936d3e5743d23344d6c60813189716f

vishal-signoz

09:52 AM

Only explanation I have is that your machine’s port is not open

10:15

vishal-signoz

10:15 AM

You can try troubleshooting; https://signoz.io/docs/install/troubleshooting/

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Ruslan

12:42 PM

thanks, so I tried it.
what is this error?

Image 1 for thanks, so I tried it.
what is this error?

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vishal-signoz

12:48 PM

It's unable to connect to your server

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Ruslan

02:46 PM

then what should I do?

Sep 16, 2023 (2 months ago)

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vishal-signoz

11:46 PM

Expose the ports of your machine correctly

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