aws elastic search

To figure out how the relevance of the document search was calculated behind elastic search, I decided to do my own experiments to exploreThis blog is a good one to say.http://blog.csdn.net/dm_vincent/article/details/42099063And the blog itself is just translating official documentsHttps://www.elastic.co/guide/en/elasticsearch/guide/current/scoring-theory.htmlI'm

Technorati Tags: elastic search,query,commandsBasic query: The simplest way to queryquery:{"term": {"title": "Crime"}}Terms: The target column contains the specified wordMatch: The input "phrase" will be broken down into wordsBOOL Match:match is decomposed into multiple words, and is the relationship of and, by default, or.Match phrase: participle, but to specify the number of words between participlesMatch

Elastic search6.2.2 Implementation of search records query, similar to Sina Weibo, the same search record in the back of the time will cover the previous (main idea: keywords to heavy, and then sorted by time)Create an index first// My search PUT my_search{ "Settings": { "Number_of_replicas": 0 }, "mapp

The first is to download Elasticsearch https://www.elastic.co/downloads, unzip; Then downloaded the Chinese parser Ik,github search Elasticsearch-ik can find, Https://github.com/medcl/elasticsearch-analysis-ik IK download down is an IK source code that needs to run maven to generate IK jar packages, different ES versions correspond to different jar packages, which are clearly stated on GitHub's homepage; Locate the bin in the directory after

Startup error message: Write the image description here Find the main information: failed to obtain node locksWrite the image description hereAn error occurred while binding nodes !!!Many people have also encountered this problem after Baidu, probably because the elasticsearch has not been properly closed.Step 1: run the command: PS aux | grep 'elasticic 'To View Details. For example:Write the image description here Step 2: run the command kill-9 to disable the process.Step 3: restart es ..

Script opening functionIn the latest version of Elasticsearch, the dynamic scripting feature is disabled by default based on security considerations (if not available). If disabled, the following error is reported when using the script:scripts oftype[inline], operation [update] and lang [groovy] are disabledYou can fully turn on the dynamic scripting feature in the Config/elasticsearch.yml file, and add the following code at the end:Script.inline:onScript.indexed:onScript.file:onAfter configurat

Create a TCP Client Client client = new Transportclient () . addtransportaddress (New inetsockettransportaddress ( "localhost", 9300 )); Create index Client.admin (). Indices (). Preparecreate ("pages"). Execute (). Actionget (); CREATE INDEX structure Xcontentbuilder builder= Xcontentfactory.jsonbuilder (). StartObject () .startobject ("Sina"). StartObject (" Properties "). StartObject (" Article_title "). Field (" Type "," string "). Field (" Store "," yes ").

Elastic Search is the equivalent of a database search engine in the application of data analysis.Like MySQL, it has its own query language, but it's not a relational database, it's nosql.Data can be quickly accessed from the distributed server file system based on the index. MySQL database and tables are stored on a server, used to connect to the server to operat