...We suggest you measure how long fetching /_nodes/stats and /_all/_stats takes for your ES cluster to determine whether your scraping interval is too short. As a last resort, you can scrape this exporter using a dedicated job with its own scraping interval. Commandline parameters start with a single - for versions less than 1.1.0rc1. Username and password can be passed either directly in the URI or through the ES_USERNAME and ES_PASSWORD environment variables. Specifying those two environment variables will override authentication passed in the URI (if any).