rails elasticsearch searchkick用法
2024-09-02 07:46:38
1.安装elasticsearch 之前要先安装java8: 参考https://www.elastic.co/guide/en/elasticsearch/reference/current/zip-targz.html#install-targz
wget https://artifacts.elastic.co/downloads/elasticsearch/elasticsearch-5.5.2.tar.gz sha1sum elasticsearch-5.5.2.tar.gz tar -xzf elasticsearch-5.5.2.tar.gz cd elasticsearch-5.5.2/
2.启动elasticsearch:
进入elasticsearch目录: ./bin/elasticsearch -d 后台执行ps aux|grep elasticsearch可以查看是否启动
3.查看elasticsearch状态
curl -XGET localhost:9200
{"status" : 200,"name" : "She-Venom","cluster_name" : "elasticsearch","version" : {"number" : "1.7.2","build_hash" : "e43676b1385b8125d647f593f7202acbd816e8ec","build_timestamp" : "2015-09-14T09:49:53Z","build_snapshot" : false,"lucene_version" : "4.10.4"},"tagline" : "You Know, for Search"}
或
GET / { "name" : "Cp8oag6", "cluster_name" : "elasticsearch", "cluster_uuid" : "AT69_T_DTp-1qgIJlatQqA", "version" : { "number" : "5.5.2", "build_hash" : "f27399d", "build_date" : "2016-03-30T09:51:41.449Z", "build_snapshot" : false, "lucene_version" : "6.5.1" }, "tagline" : "You Know, for Search" }
rails中使用searchkick
1.添加gem
gem 'searchkick'
2.配置model
class Product < ActiveRecord::Base searchkick end
3.reindex
rake searchkick:reindex:all 或 单独对某一个model
rake searchkick:reindex CLASS=your_model_class_name
4.测试查询
测试时使用准确查询
@lessons = Lesson.search params[:search], fields: [{name: :exact}]
demo:https://www.driftingruby.com/episodes/searchkick-and-elasticsearch
http://billhung.logdown.com/posts/393386
tutorial:http://www.munocreative.com/nerd-notes/tutor-portal
api:http://www.rubydoc.info/gems/searchkick/1.3.1
参考文档:https://stackoverflow.com/questions/25052973/rails-elasticsearch-searchkick
常见错误
1Connection refused - connect(2) for "localhost" port 9200)
表结构改变一定要在启动elasticsearch的情况下,重新执行rake searchkick:reindex CLASS=your_model_class_name,再对这个model进行操作(比如添加数据等)
2启动elastic Could not find any executable java binary. Please install java in your PATH or set JAVA_HOME
如果在服务器中新安装了java,要重新启动一下
3 There is insufficient memory for the Java Runtime Environment to continue.
修改elasticksearch/config/jvm.options,将xms 和 xmx设置教小一些
-Xms512m
-Xmx512m
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