solr

【solr】使用-取反时注意，-是表示排除，不能单独做条件用

由 守給你的承諾、 提交于 2020-07-28 01:09:55
1、solr的-表示取反、排除意思，比如说我要name不为a的数据，我们正常理解写法是-name:a，这是不对的，正确写法是(name:* AND -name:a) 2、演示 2.1、这是我们所有数据 我们要name不为a或者id为1的数据，一眼看出有4条数据符合要求 错误语法 type:test AND (-name:a OR id:1) 正确语法 type:test AND ((name:* AND -name:a) OR id:1) 来源： oschina 链接： https://my.oschina.net/u/4254929/blog/4308469

四面蚂蚁金服（已拿offer），分享面试经历总结

由 帅比萌擦擦* 提交于 2020-07-27 13:31:51
蚂蚁花呗一面（一个小时）： HashMap底层如何实现？ HashMap检测到hash冲突后，将元素插入在链表的末尾还是开头？ 1.8还采用了红黑树，讲讲红黑树的特性，为什么人家一定要用红黑树而不是AVL、B树之类的？ java的内存分区？ java对象的回收方式，回收算法？ 线程池的工作原理，几个重要参数，然后给了具体几个参数分析线程池会怎么做，最后问阻塞队列的作用是什么？ linux怎么查看系统负载情况？ 请详细描述springmvc处理请求全流程？ spring 一个bean装配的过程？ 项目用 Spring 比较多，有没有了解 Spring 的原理？AOP 和 IOC 的原理 Tomcat的基本架构是什么？ 什么是类加载器？ 说说双亲委派模型机制？ 蚂蚁花呗二面 讲一下项目 线程池由哪些组件组成？ 有哪些线程池，分别怎么使用？拒绝策略有哪些？ 查询中哪些情况不会使用索引？ 数据库索引，底层是怎样实现的，为什么要用B树索引？ Mysql主从同步的实现原理？ MySQL是怎么用B+树？ 有使用过哪些NoSQL数据库？MongoDB和Redis适用哪些场景？ 描述分布式事务之TCC服务设计？ Redis和memcache有什么区别？Redis为什么比memcache有优势？ Redis 的数据结构 海量数据过滤，黑名单过滤一个 url。 讲一讲AtomicInteger

How to setup authentication mechanism in solr 7?

由 十年热恋 提交于 2020-07-22 21:43:29
问题 I have installed solr 7.7 standalone in my production server. I am trying to setup authentication mechanism using jetty approach. This is what I tried: 1.modified “/opt/solr/server/etc/jetty.xml <Call name="addBean"> <Arg> <New class="org.eclipse.jetty.security.HashLoginService"> <Set name="name">Test Realm</Set> <Set name="config"><SystemProperty name="jetty.home" default="."/>/etc/realm.properties</Set> <Set name="refreshInterval">0</Set> </New> </Arg> </Call> created credentials file in

How to setup authentication mechanism in solr 7?

由 狂风中的少年 提交于 2020-07-22 21:39:44
问题 I have installed solr 7.7 standalone in my production server. I am trying to setup authentication mechanism using jetty approach. This is what I tried: 1.modified “/opt/solr/server/etc/jetty.xml <Call name="addBean"> <Arg> <New class="org.eclipse.jetty.security.HashLoginService"> <Set name="name">Test Realm</Set> <Set name="config"><SystemProperty name="jetty.home" default="."/>/etc/realm.properties</Set> <Set name="refreshInterval">0</Set> </New> </Arg> </Call> created credentials file in

How do i check cassandra and solr is up?

由 只谈情不闲聊 提交于 2020-07-22 17:56:51
问题 I just installed datastax 2.2.2 on my ubuntu:12.04 machine from tarball I started services using bin/dse cassandra -s . I din't set any env variables.But it starts the service. bin/dse/bin/nodetool status It lists out list of valid commands where status is not there. How do i verify my cassandra and solr is up? AM i missing something? ANy ideas? 回答1: nodetool status should work. DSE 4.6 is the latest version, why are you on 2.2? Watch your system and output logs as the node starts up to see

Solr: Scores As Percentages

由 瘦欲@ 提交于 2020-07-21 05:20:07
问题 First of all, I already saw the lucene doc which tells us to not produce score as percentages: People frequently want to compute a "Percentage" from Lucene scores to determine what is a "100% perfect" match vs a "50%" match. This is also somethings called a "normalized score" Don't do this. Seriously. Stop trying to think about your problem this way, it's not going to end well. Because of these recommandations, I used another way to solve my problem. However , there are a few points of lucene

Solr Range Facets dynamically modifying the ranges based on the search query

由 三世轮回 提交于 2020-07-09 11:48:25
问题 So here is what I am trying to do. I have a facet defined on the price field. 1) When there is a query for "wordA" I want the facets to be from 0-1000 divided in 5 intervals since my maximum price for "wordA" will never exceed 1000 2) When there is a query for "wordB" I want the facets to be from 0-50 divided in 5 intervals since my maximum price for the query "wordB" will never exceed 50. So basically I want the facet range to change dynamically so that I don't end up with a range of 0-1000

Solr Range Facets dynamically modifying the ranges based on the search query

由 本秂侑毒 提交于 2020-07-09 11:46:49
问题 So here is what I am trying to do. I have a facet defined on the price field. 1) When there is a query for "wordA" I want the facets to be from 0-1000 divided in 5 intervals since my maximum price for "wordA" will never exceed 1000 2) When there is a query for "wordB" I want the facets to be from 0-50 divided in 5 intervals since my maximum price for the query "wordB" will never exceed 50. So basically I want the facet range to change dynamically so that I don't end up with a range of 0-1000

Solr : Index does not have an operational DataImportHandler defined

由 给你一囗甜甜゛ 提交于 2020-07-09 02:33:33
问题 I was trying to use DataImportHandler to index my MySQL Database using Solr in Cloud Mode, the following are the configurations it uses the _default configsets. solr-7.3.0\server\solr\configsets\_default\conf\ data-config.xml # define data source <dataConfig> <dataSource type="JdbcDataSource" driver="com.mysql.jdbc.Driver" url="jdbc:mysql://localhost:3306/expressg_dbkevinzeigler" user="root" password=""/> <document> <entity name="product" pk="id_prd" query="SELECT id_prd, name_prd,

Solr : Index does not have an operational DataImportHandler defined

由 生来就可爱ヽ(ⅴ＜●) 提交于 2020-07-09 02:33:09
问题 I was trying to use DataImportHandler to index my MySQL Database using Solr in Cloud Mode, the following are the configurations it uses the _default configsets. solr-7.3.0\server\solr\configsets\_default\conf\ data-config.xml # define data source <dataConfig> <dataSource type="JdbcDataSource" driver="com.mysql.jdbc.Driver" url="jdbc:mysql://localhost:3306/expressg_dbkevinzeigler" user="root" password=""/> <document> <entity name="product" pk="id_prd" query="SELECT id_prd, name_prd,
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