Summary of Solr's Study I

Heart Word: Because relational databases have always been in contact with before, all of these nosql s do not fit in very well.It is often used in companies.This is not difficult to learn, but for future review.I decided to write down some of the skills and experiences I learned Environment Configuration for Solr This is a lot of online st ...

Posted on Fri, 22 May 2020 12:19:56 -0400 by potatoCode

solr and the use of solr net

solr and. net (5) the use of solrnet Recently, due to the busy project, this article came out late. It has been half a month since the last article. In this lesson, we will learn solr net, solr's. Net client Source: https://github.com/make/solrnet The previous article described how C ා requests and accepts solr's data. The request link is sp ...

Posted on Sun, 03 May 2020 19:23:34 -0400 by coltrane

solr(4): spring boot integration solr

preface: After solr server is set up and data is imported, it should be applied to the project. How to integrate and apply solr in the project Next, integrate and apply solr 1, Integration 1. Introduce jar package <properties> <spring.data.solr.version>2.1.1.RELEASE</spring.data.solr.version> </properties&g ...

Posted on Thu, 30 Apr 2020 21:22:24 -0400 by agulaid

solr(3): importing database table data

solr can not only query the data in the document, but also import the data in the database In other words, solr can query data in other databases (solr itself is a database, non relational) Then try to import data from mysql database 1, Preparations 1. Create a new lib folder under Solr? Core and copy the following jar packages 2. Modify solrc ...

Posted on Thu, 30 Apr 2020 17:19:08 -0400 by Tonic-_-

Flume development - Custom sink

I. Introduction Sink continuously polls events in the Channel and removes them in batches, and writes them to the storage or index system in batches, or sends them to another Flume Agent. Sink is completely transactional. Before batch deleting data from the Channel, each sink starts a transaction with ...

Posted on Wed, 04 Mar 2020 23:25:40 -0500 by dodgeqwe

27. Data governance of yiee data operation system of Duoyi Education - atlas deployment and use

Catalog 1, atlas Compilation and packaging 2, atlas installation configuration 1. Compilation environment 2. Compilation steps 3. Installation steps 4. Hive hook configuration 5. Operation test 3, atlas configuration hive hook 4, Introduction to atlas         1,Base Search         ...

Posted on Tue, 11 Feb 2020 03:02:02 -0500 by bensonang

Document deletion for the SpringBoot series tutorial Solr

Document deletion for Solr, 200114-SpringBoot series tutorial The previous Search tutorial did not continue at the beginning, and now it is picked up again, at least to complete the basic operation posture of CURD; this article focuses on how to delete data <!-- more --> I. Configuration Before introducing demo, you need to install sol ...

Posted on Wed, 15 Jan 2020 21:08:27 -0500 by raahatazim

solr advanced query - group and facet

1. overview facet is just a simple statistical record. If you need to obtain doc information, you cannot return the actual data for each group of data. You need to query the actual data again. Group is similar to group by in a relational database. In addition to grouping, you can also return the actual data 2. Query example 2.1 group Query solr ...

Posted on Sat, 04 Jan 2020 15:13:38 -0500 by jellis

Use of Solr in java-05

Import the required coordinates. Note that it conflicts with the lower version of HTTP client <dependency> <groupId>org.apache.solr</groupId> <artifactId>solr-solrj</artifactId> <version>7.3.1</version> </dependency> //Connect to server HttpSolrClient solrClient = new HttpSolrClie ...

Posted on Thu, 05 Dec 2019 01:03:47 -0500 by terry1989

Causes and consequences of inode occupation

0. Problem description phenomenon After receiving the pin alarm, online Solr server / var partition inode is full. Influence /The var partition can no longer create new files. What is inode The inod is the index node of the block in the file system. Each file in the os will occupy one inode, and the size of the inode is limited. 1. inve ...

Posted on Tue, 03 Dec 2019 05:16:08 -0500 by craigh