Gradle & Springboot introducing low version of ES
Elastic Search was introduced into SpringBoot before, but due to the low server version, the latest version of ES is 6.x.x, and what I need is 5.1.1 (org.elastic search.client: transport: 5.1.1). When I introduced the version package 5.1.1, the dependency of org.elasticsearch:elasticsearch in org.elasticsearch.client:transport:5.1. ...
Posted on Thu, 02 May 2019 19:20:37 -0400 by kumar_ldh
Arthas helps troubleshoot skywalking unavailability on the line
Preface
First, describe the background of the problem. The blogger has a habit of looking at the error of skywalking's trace page every day when he goes to and from work. But one day, I suddenly found that the production environment skywalking page had no data, and the page did not show any abnormalities. It was a bit panicky. Although we did n ...
Posted on Wed, 01 May 2019 16:00:37 -0400 by Mad Mick
solr awareness, linux installation, java use (including download resources)
Catalog:
I. General Understanding of solr
II. solr Installation
3. Deep Understanding of solr
IV. Use of solr
(1) Because we use Chinese, we need a Chinese analyzer. Here I use IK Analyzer 2012 FF_hf1.
(2) Specify the business domain field name in schema.xml at the same time...
(3) Configure replication domains in schema.xml at the same time
...
Posted on Mon, 29 Apr 2019 10:40:35 -0400 by acook
Subtle differences in the order in which Maven plug-ins declare
The source of this article is: http://blog.csdn.net/bluishglc/article/details/50380880 Forbidden to reproduce in any form, otherwise CSDN will be entrusted to officially safeguard rights and interests!
Look at this very interesting question:
A project requires a package operation like this:
The jar package ...
Posted on Sat, 27 Apr 2019 12:42:35 -0400 by robocop
dubbo Source Parsing Service Reference Process
dubbo service reference process
Objective: To analyze the service reference process from the source code perspective.
Preface
As explained in the previous article on the process of service exposure, there are two ways of service reference. One is direct connection, that is, directly specifying the address of the service for reference. This way ...
Posted on Sat, 27 Apr 2019 07:24:36 -0400 by mdversion1
Maven Learning Summary 4--POM
Maven--pom
what is the POM?
A basic pom file
List of elements in a pom file
Super POM
POM relationship
inherit
polymerization
what is the POM?
Pom is the abbreviation of English project object model, translated into project object model. When we learn programming language, we often come into contact with the concept ...
Posted on Sat, 27 Apr 2019 00:00:35 -0400 by sonofyoda
Join operation of two files using MapReduce
Article Directory
data structure
customer
order
MapJoin
describe
Main function entry
Construct class code
results of enforcement
MapJoin Pit Record
ReduceJoin
describe
Main function entry
Construct class code
Result
ReduceJoin Pit Record
data structure
customer
USER_ID
NAME
PHONE
1
Big Tree
13111111111
2
L ...
Posted on Fri, 26 Apr 2019 14:24:36 -0400 by adamsca
Spark ML Pipelines (ML Pipelines)
Statement: The code is mainly Scala, and we hope that readers will pay attention to it. This blog is code-based, there will be detailed comments in the code. Related articles will be published in my personal blog column Spark 2.0 Machine Learning Welcome your attention.
I. Main concepts of Pipelines
ML can be applied to a va ...
Posted on Thu, 25 Apr 2019 19:54:39 -0400 by danleighton
zookeeper Quick Start
zookeeper
What is zookeeper
Apache ZooKeeper is a software project of the Apache Software Foundation. It provides open source distributed configuration services, synchronization services and naming registration for large distributed computing. ZooKeeper used to be a sub-project of Hadoop, but now it's a top-level independent project.
ZooKeeper' ...
Posted on Thu, 25 Apr 2019 17:00:34 -0400 by dusty
Flink Introduction and Deployment
First, First Understanding Flink
Official website: https://flink.apache.org/
Apache Flink is a distributed, high performance, high availability and high precision open source stream processing framework for data stream applications. It was accepted by Apache Incubator in 2014 and quickly became one of the top projects of ASF (Apache Software ...
Posted on Thu, 25 Apr 2019 16:57:35 -0400 by include_me