Elasticsearch
From DWIKI
Links
- http://jprante.github.io/2012/11/28/Elasticsearch-Java-Virtual-Machine-settings-explained.html
- https://www.elastic.co/blog/a-heap-of-trouble
Monitoring elasticsearch
- How to monitor Elasticsearch performance
- Top 10 Elasticsearch Metrics to Monitor
- Performance metrics to monitor
- Heap Size Usage
Query the web interface
- 'cluster': 'http://localhost:9200/_cluster/stats',
- 'nodes' : 'http://localhost:9200/_nodes/stats',
- 'indices': 'http://localhost:9200/_stats',
- 'health' : 'http://localhost:9200/_cluster/health'
Installing Elasticsearch
On Debian
deb https://artifacts.elastic.co/packages/oss-6.x/apt stable main
packages is called elasticsearch-oss now?
Terminology
shards
"blocks" of index data distributed over the nodes
Percolation
https://spinscale.de/posts/2021-09-15-understanding-elasticsearch-percolate-query.html
FAQ
Status is yellow
and look for unassigned shards
