If you're running Observability or SIEM on Elasticsearch, you've probably been in this situation: cluster slowing down, heap climbing, and you're digging through _cat/indices, _cluster/stats, _cat/shards one by one trying to figure out what's eating your resources.
I got tired of doing that manually so I built a Chrome extension that pulls all of this into one dashboard. Shows indexing/search rate, hot-warm-cold storage per data stream, field usage (useful for spotting mappings bloated with fields nobody actually queries), and ILM rollover issues.
Nothing fancy, connects to your cluster directly via the standard APIs. No data goes anywhere.
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You can add the extension here: https://chromewebstore.google.com/detail/elasticsearch-performance/eoigdegnoepbfnlijibjhdhmepednmdi