Programming VIP

Write in front In today's Internet industry, especially in the current distributed and micro service development environment, in order to improve search efficiency and search accuracy, a large number of NoSQL databases such as Redis and Memcached will be used, as well as a large number of full-text retrieval services such as Solr and Elasti ...

2021SC@SDUSC 1. Store domain data files (. fdt and. fdx) Solr4. The format of fdt and fdx used in 8.0 is Lucene 4.0 1. In order to improve the compression ratio, StoredFieldsFormat compresses documents in 16KB units. The compression algorithm used is LZ4. Because it focuses more on speed than compression ratio, it can compress and decompress ...

Check Nginx's nginx.conf file, and you can see such a message #access_log logs/access.log main; This indicates that the file of the server access log is logs/host.access.log in the format of "main". main format #log_format main '$remote_addr - $remote_user [$time_local] "$request" ' # '$st ...

1. Preface Any back-end database, such as MySQL, Oracle, Redis, Solr, Elasticsearch, MongoDB, encapsulated in SpringBoot first by SpringData, is extremely elegant and concise Attached are search engine actual cas ...

1.Solr installation and configuration 1.1 introduction to Solr Most search engine applications must have some kind of search function. The problem is that the search function is often a huge resource consumption and they drag down the performance of your application due to heavy database loading. Th ...

Preface According to the analysis of springboot version 2.0.0, the overall automatic configuration process is as follows: Refer to official documents for specific configuration: springboot-doc Two @ SpringBootApplication The core annotation @ SpringBootConfiguration is actually the @ Configurati ...

Before the project, it ran well. As a result, after other related modules updated the code, the project startup reported an error 2019-12-06 08:55:13 [main] ERROR o.s.boot.SpringApplication - Application startup failed java.lang.NullPointerException: null at org.springframework.beans.factory.support.DefaultListableBeanFactory$FactoryAwareOr ...

Recently, due to work reasons, I have been busy with various projects of the company (most of them are microservices based on Spring cloud), so I haven't shared and summarized the latest technical research results with you for a while. In fact, I have been studying and studying various framework principles of Spring, Spring Boot and Spring clou ...

Articles Catalogue Project introduction system architecture Project module Application Technology Points Dubbox Distributed Service Framework Front-end framework Angular JS Spring Security FastDFS Redis Application in Home Page Advertising Application in Search Application in Registration Applicati ...

I. Brief Introduction1.1. What is solr?Solr is a top-level open source project under Apache, developed in Java, and is a full-text search server based on Lucene. Solr provides a richer query language than Lucene, implements configurability and scalability, and optimizes index and search performance.Solr is a full-text retrieval server, which on ...