Breaking changes

⚠️ This release has breaking changes! Make sure to read and understand the below before upgrading!

• We no longer redirect all paths to /metrics (#473). This means that if you configured Prometheus to scrape eg /not-metrics but did not configure wmi_exporter to expose the metrics on this port (using the --telemetry.path flag), your scrapes will now fail with a http 404. Make sure your Prometheus job configuration and the exporter configuration matches!
• The --collector.process.processes-where flag has been removed, in favour of --collector.process.whitelist and --collector.process.blacklist (see more below)

Enhancements

• The process collector has been rewritten to use perflib (#489), yielding significant performance improvements. Since it no longer uses WMI, the filtering mechanism can no longer use WQL. It now instead uses a white- and blacklist with regular expressions, like several other collectors.
• We now limit how many concurrent scrapes are allowed (#474). The exporter will only accept a limited number (by default 5) requests to be processed simultaneously. A flag --max-requests can be used to tune this. Typically, running several simultaneous scrapes tends to make the WMI subsystem slow.