If you’re running Solr and have to troubleshoot it (or maybe you just want a good overview!), then you’d probably want to collect logs, configs, maybe a snapshot of metrics and some system data, like top or netstat. We created a small tool for this exact task, creatively named solr-diagnostics. It’s been out there for almost two years, and we found it useful in our Solr consulting and production support engagements. So we thought it’s about time to spread the word.