Is NodeJS pull mode working?

[brunobastosg]

Hi, all!

According to the NodeJS Language SDK documentation, to use pull mode, I need to add scrape configuration to the Pyroscope config file.

However, in the configuration reference, there is no mention of a configuration parameter called scrape-configs.

I even checked the source code, but couldn't find anything.

Even so, I started Pyroscope with a custom config file with the scrape-configs block as instructed. There was no error, but no scraping was being done.

I also checked the express-pull example in the repository, but it uses the Grafana Agent instead of a scrape-configs block in the configuration file.

So, is the documentation wrong? Or is this an upcoming feature? Or should I use the Grafana Agent?

Thank you in advance!

[cyriltovena]

You're right the documention is wrong, we removed the scraping ability directly from Pyroscope since this was a duplication of effort with Grafana Agent.

We wanted to integrate the agent back into Pyroscope but this hasn't been a priority.

So if you want pull mode you'll need to install Grafana Agent in flow mode with profiling scrape_config.