lucene

Lucene JDBC Directory

由 孤街浪徒 提交于 2021-01-21 09:20:06
问题 I am using Lucene 3.5.0 to do some basic search stuff on my website. I want to store the index in a JDBC Directory in my Mysql Database. I was going to use the Compass Project to do this, but with some more research and actually trying the code I have found that Compass is a dead project and it no longer is compatible with the current version of Lucene. Is there another option to store my index in a JDBC Directory? Is there a reason Lucene does not offer this native? Is storing on the HDD a

Lucene JDBC Directory

由 試著忘記壹切 提交于 2021-01-21 09:18:27
问题 I am using Lucene 3.5.0 to do some basic search stuff on my website. I want to store the index in a JDBC Directory in my Mysql Database. I was going to use the Compass Project to do this, but with some more research and actually trying the code I have found that Compass is a dead project and it no longer is compatible with the current version of Lucene. Is there another option to store my index in a JDBC Directory? Is there a reason Lucene does not offer this native? Is storing on the HDD a

Why doesn't routing work with ElasticSearch Bulk API?

由 谁说我不能喝 提交于 2021-01-20 20:23:49
问题 I am setting a Bulk request to ElasticSearch and specifying the shard to route to. But when I run it, the documents get sent to different shards. Is this a bug in ElasticSEarch bulk? it works when I just index a single document. It works when I search. But not when I do a bulk import. To reproduce: curl -XPOST 'http://192.168.1.115:9200/_bulk?routing=a' -d ' { "index" : { "_index" : "articles", "_type" : "article", "_id" : "1" } } { "title" : "value1" } { "delete" : { "_index" : "articles", "

Why doesn't routing work with ElasticSearch Bulk API?

由 徘徊边缘 提交于 2021-01-20 20:20:30
问题 I am setting a Bulk request to ElasticSearch and specifying the shard to route to. But when I run it, the documents get sent to different shards. Is this a bug in ElasticSEarch bulk? it works when I just index a single document. It works when I search. But not when I do a bulk import. To reproduce: curl -XPOST 'http://192.168.1.115:9200/_bulk?routing=a' -d ' { "index" : { "_index" : "articles", "_type" : "article", "_id" : "1" } } { "title" : "value1" } { "delete" : { "_index" : "articles", "

Why doesn't routing work with ElasticSearch Bulk API?

由 亡梦爱人 提交于 2021-01-20 20:20:07
问题 I am setting a Bulk request to ElasticSearch and specifying the shard to route to. But when I run it, the documents get sent to different shards. Is this a bug in ElasticSEarch bulk? it works when I just index a single document. It works when I search. But not when I do a bulk import. To reproduce: curl -XPOST 'http://192.168.1.115:9200/_bulk?routing=a' -d ' { "index" : { "_index" : "articles", "_type" : "article", "_id" : "1" } } { "title" : "value1" } { "delete" : { "_index" : "articles", "

Hadoop入门基础知识总结

由 谁说我不能喝 提交于 2021-01-13 08:46:27
　　大数据时代的浪潮袭来，Hadoop作为一种用来处理海量数据分析的工具，是每一个大数据开发者必须要学习和掌握的利器。本文总结了Hadoop入门基础知识，主要包括了Hadoop概述、Hadoop的发展历程和Hadoop的特性。下面一起来看看吧! 　　1、Hadoop概述 　　Hadoop 是 Apache 旗下的一个用 Java 语言实现开源软件框架，它还是一个开发和运行处理大规模数据的软件平台。Hadoop允许使用简单的编程模型，在大量计算机集群上，对大型数据集进行分布式处理。 　　狭义上说，Hadoop 指 Apache 这款开源框架，它的核心组件有：HDFS(分布式文件系统)：解决海量数据存储 ;YARN(作业调度和集群资源管理的框架)：解决资源任务调度;MAPREDUCE(分布式运算编程框架)：解决海量数据计算。 　　广义上来说，Hadoop 通常是指一个更广泛的概念——Hadoop 生态圈。当下的 Hadoop 已经成长为一个庞大的体系，随着生态系统的成长，新出现的项目越来越多，其中不乏一些非 Apache 主管的项目，这些项目对 HADOOP 是很好的补充或者更高层的抽象。比如，HDFS： 分 布 式 文 件 系 统;MAPREDUCE：分布式运算程序开发框架;HIVE：基于 HADOOP 的分布式数据仓库，提供基于 SQL 的查询数据操作;HBASE

Springboot2.x整合ElasticSearch7.x实战（三）

由 喜你入骨 提交于 2021-01-11 01:43:28
大概阅读10分钟 本教程是系列教程，对于初学者可以对 ES 有一个整体认识和实践实战。 还没开始的同学，建议先读一下系列攻略目录： Springboot2.x整合ElasticSearch7.x实战目录 本篇幅是继上一篇 Springboot2.x整合ElasticSearch7.x实战（二） ，适合初学 Elasticsearch 的小白，可以跟着整个教程做一个练习。 [toc] 第五章 Mapping详解 Mapping 是整个 ES 搜索引擎中最重要的一部分之一，学会构建一个好的索引，可以让我们的搜索引擎更高效，更节省资源。 什么是 Mapping? Mapping 是Elasticsearch 中一种术语， Mapping 类似于数据库中的表结构定义 schema，它有以下几个作用： 1. 定义索引中的字段的名称 2. 定义字段的数据类型，比如字符串、数字、布尔 3. 字段，倒排索引的相关配置，比如设置某个字段为不被索引、记录 position(位置) 等 在 ES 早期版本，一个索引下是可以有多个 Type ，从 7.0 开始，一个索引只有一个 Type，也可以说一个 Type 有一个 Mapping 定义。 了解了什么是 Mapping 后，接下来对 Mapping 的设置坐下介绍： Maping设置 dynamic (动态Mapping) 官网参考： https:/

Apache Solr - Indexing ZIP files

由 空扰寡人 提交于 2021-01-07 06:59:24
问题 My web app is an e-mail service. It stores email messages in MySQL database and email attachments are on a disk. The database is similar to: ---------------------------------------------------------------------- | id | sender | receiver | subject | body | attach_dir | attachments | ---------------------------------------------------------------------- | 2 | 444 | 555 | Apples | Hey! | /mnt/emails| att1.doc\r\n| | | | | | | | att2.doc\r\n| ------------------------------------------------------

Apache Solr - Indexing ZIP files

由 徘徊边缘 提交于 2021-01-07 06:59:07
问题 My web app is an e-mail service. It stores email messages in MySQL database and email attachments are on a disk. The database is similar to: ---------------------------------------------------------------------- | id | sender | receiver | subject | body | attach_dir | attachments | ---------------------------------------------------------------------- | 2 | 444 | 555 | Apples | Hey! | /mnt/emails| att1.doc\r\n| | | | | | | | att2.doc\r\n| ------------------------------------------------------

Upgrading Solr index from 6 to 8

由 倖福魔咒の 提交于 2021-01-07 01:14:30
问题 I have a core which was created years ago, running correctly from a Solr 6.x. I've upgraded Solr to 7.7.3. I've launched the IndexUpgrade script: /opt/solr/server/solr-webapp/webapp/WEB-INF/lib$ sudo java -cp lucene-core-7.7.3.jar:lucene-backward-codecs-7.7.3.jar org.apache.lucene.index.IndexUpgrader /var/solr/data/hms/data/index/ It silently run, so my assumption is that it did what it had to do correctly. Then I've upgraded to Solr 8.7.0, and launched the script: /opt/solr/server/solr
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