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courses:cs397:winter2017:elasticsearch [2017/03/27 03:13] – created admin | courses:cs397:winter2017:elasticsearch [2017/04/16 19:26] (current) – [Inserting documents to an index] admin | ||
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====== Elasticsearch ====== | ====== Elasticsearch ====== | ||
+ | |||
+ | The following assumes that elasticsearch is running on the localhost on port 9200. | ||
+ | |||
+ | How do I learn more? https:// | ||
+ | |||
+ | ===== General Info about elasticsearch instance ===== | ||
+ | |||
+ | ==== How is elasticsearch doing? ==== | ||
+ | |||
+ | curl -XGET ' | ||
+ | curl -XGET ' | ||
+ | |||
+ | ==== What are the indices on this instance? ==== | ||
+ | |||
+ | curl -XGET ' | ||
+ | |||
+ | ===== Searching Data ===== | ||
+ | |||
+ | |||
+ | ==== Viewing Data ==== | ||
+ | |||
+ | This will give you, by default, the first 20 results as prettified JSON | ||
+ | |||
+ | curl –XGET ‘localhost: | ||
+ | |||
+ | ==== Filtering Results ==== | ||
+ | |||
+ | Only get results that match certain criteria: | ||
+ | |||
+ | curl -XGET ' | ||
+ | |||
+ | |||
+ | curl -XGET ' | ||
+ | " | ||
+ | " | ||
+ | { " | ||
+ | { " | ||
+ | ] | ||
+ | } | ||
+ | } | ||
+ | }' | ||
+ | |||
+ | ==== Sorting Examples ==== | ||
+ | |||
+ | Search '' | ||
+ | |||
+ | curl -XGET ' | ||
+ | |||
+ | Search '' | ||
+ | |||
+ | curl -XGET ' | ||
+ | { | ||
+ | " | ||
+ | " | ||
+ | { " | ||
+ | ] | ||
+ | }' | ||
+ | | ||
+ | ==== Limiting Results ==== | ||
+ | |||
+ | Only give one result back from searching '' | ||
+ | |||
+ | curl -XGET ' | ||
+ | | ||
+ | Give back one result, starting at search result 10, from '' | ||
+ | |||
+ | curl -XGET ' | ||
+ | |||
+ | ==== Aggregations ==== | ||
+ | |||
+ | Finding distinct entities | ||
+ | |||
+ | curl -XGET ' | ||
+ | { | ||
+ | " | ||
+ | " | ||
+ | " | ||
+ | " | ||
+ | " | ||
+ | } | ||
+ | } | ||
+ | } | ||
+ | }' | ||
+ | |||
+ | ===== Adding Information ===== | ||
+ | |||
+ | ==== Adding an index ==== | ||
+ | |||
+ | curl -XPUT ' | ||
+ | |||
+ | ==== Inserting documents to an index ==== | ||
+ | |||
+ | Insert the JSON document (after the -d) into the index with the id '' | ||
+ | |||
+ | curl –XPUT ‘localhost: | ||
+ | |||
+ | |||
+ | ==== Adding from a File ==== | ||
+ | |||
+ | mongoimport --db dbname --collection whichcollection --file mydata.json | ||
+ | |||
+ | curl -XPOST ' | ||
+ | |||
+ | curl -XPOST ' | ||
+ | ===== Deleting Information ===== | ||
+ | |||
+ | curl -XDELETE ' | ||