Question: how to configure the bundle for the Sentry?

[egorzot]

I've found in the Configuration class the function createSentryConfiguration:

'Whether or not to enable passing trace and transaction id to Sentry. ' .
'Note: ensure to set $sentry->tracing->enabled(false) to disable Sentry's own tracing.'

But if I disable the tracing for Sentry, how will it work with the trace bundle?
Maybe you have an example of such a config?

Btw, thanks for the great bundle !

[frankdekker]

Hi, nice question, we had some issues with Sentry before. How it works:

If you install this symfony-trace-bundle package, it will become the main "authority" of the traceId management. This means it will generated traceIds, intercept traceIds from requests and propagates traceId to monolog, messenger, and responses.

If you install Sentry with tracing enabled, Sentry also becomes the authority of managing the traceId, overriding the behaviour of the symfony-trace-bundle. Therefore, you can enable Sentry, but you have to disable Sentry's tracing abilities. The symfony-trace-bundle will to set a traceId in Sentry instead.

Example sentry configuration:

// config/packages/sentry.php
<?php

declare(strict_types=1);

use Symfony\Config\SentryConfig;

return static function (SentryConfig $sentry): void {
   ...
    $sentry->tracing()->enabled(false);
};

Example trace bundle configuration:

<?php

declare(strict_types=1);

use Symfony\Config\SymfonyTraceConfig;

return static function (SymfonyTraceConfig $config): void {
    ...
    $config->sentry()->enabled(true);
};

[egorzot]

@frankdekker thanks for the answer!
One more question: what about the traces_sample_rate config for Sentry? Will the symfony-trace-bundle consider this parameter?

[frankdekker]

Hard to say as traces_sample_rate is something from Sentry itself. The symfony-trace-bundle has no impact on this value. You'll have to either debug or refer to Sentry documentation about this setting. I doubt the "sample_rate" has something to do with trace id or transaction ids.

[egorzot]

@frankdekker, it is the percent of traces that will be sent to Sentry. For example, you can send only 10% of all the traces if you set traces_sample_rate to 0.1 value. It allows you to save Sentry server resources (for he self-hosted version).
So, as I understood, symfony-trace-bundle will send all the traces to the Sentry...

[frankdekker]

@egorzot Ah okay. Symfony trace bundle just marks the current php process with a trace and transaction id (and sets that id in Sentry). It does nothing with "trace sample rate" or sending things to sentry. That's all handled by Sentry itself.