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December 3, 2013 05:07
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Elastic Search Notes
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| ## Useful Links | |
| * Home Page - http://www.elasticsearch.org/ | |
| * Git HomePage - more info, less marketing: https://github.com/elasticsearch/elasticsearch | |
| * Glossary - http://www.elasticsearch.org/guide/reference/glossary/ | |
| * Hands on Intro - Hammer Time - https://github.com/s1monw/hammertime | |
| * Node client - https://github.com/phillro/node-elasticsearch-client | |
| * Mongo River - to stream data in from Mongo - https://github.com/richardwilly98/elasticsearch-river-mongodb/ | |
| * How to setup with Chef Solo - http://www.elasticsearch.org/tutorials/deploying-elasticsearch-with-chef-solo/ | |
| * Elastic Search on EC2 - http://www.elasticsearch.org/tutorials/elasticsearch-on-ec2/ | |
| ## Notes | |
| * An 'index' is similar to a collection in Mongo. It's the container that stores the data for one collection. | |
| * Number of shards and replicas is set per index. | |
| * Re Multi-tenancy, Clinton for ES core team recommends not using a index per tenant. http://elasticsearch-users.115913.n3.nabble.com/What-is-best-indexing-strategy-for-multitenant-data-td2904545.html | |
| ## Limitations | |
| * Once number of shards is set, it can't be changed for an index. Instead a new index has to be created. See reindex with zero downtime: http://www.elasticsearch.org/blog/changing-mapping-with-zero-downtime |
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