teleren/devto huggingface dataset:
Working with Databases -Confirming Connection Information
Tags: opengauss
Published: 2023-03-13 04:36:57

You can use a client tool to connect to a database through a the primary node of the database in the database. Before the connection, obtain the IP address and the primary node of the database port number of the server where the the primary node of the database is deployed.

**Procedure**
1. Log in as the OS user **omm** to the primary node of the database.

2. Run the **gs_om-t status–detail** command to query instances in openGauss.

![Image description](https://dev-to-uploads.s3.amazonaws.com/uploads/articles/3bhh56c2g3gb4gywzhlt.png)

![Image description](https://dev-to-uploads.s3.amazonaws.com/uploads/articles/tandeiq1jxbzpu3fc6sc.png)

In the preceding information, the IP address of the server where the primary database node instance is deployed is 192.168.0.11. The data path of the primary node of the database is **/srv/gaussdb/data1/dbnode. P** indicates that the role specified during the installation is **Primary**. The role does not change after the database is installed and is read from the system static file. **Primary** means the primary instance. **Normal** indicates that openGauss is available, the data has redundancy backup, all processes are running, and the primary/standby relationship is normal.

3. Confirm the port number of the primary node of the database.

View the port number in the **postgresql.conf** file of the primary node of the database path, which is queried in 2. The command is as follows:

![Image description](https://dev-to-uploads.s3.amazonaws.com/uploads/articles/ff3rjfas66811m4s26am.png)

port = 8000    # (change requires restart)
#comm_sctp_port = 1024   # Assigned by installation (change requires restart)
#comm_control_port = 10001  # Assigned by installation (change requires restart)
      # supported by the operating system:
      # e.g. 'localhost=10.145.130.2 localport=12211 remotehost=10.145.130.3 remoteport=12212, localhost=10.145.133.2 localport=12213 remotehost=10.145.133.3 remoteport=12214'
      # e.g. 'localhost=10.145.130.2 localport=12311 remotehost=10.145.130.4 remoteport=12312, localhost=10.145.133.2 localport=12313 remotehost=10.145.133.4 remoteport=12314'
      #   %r = remote host and port
alarm_report_interval = 10
support_extended_features=true
Installing and using Apache Age
Tags: apacheage, postgres, database
Published: 2023-03-13 04:20:42

To use Apache Age, one needs to first install apache.

1.**Install Apache Age**:Apache Age can be downloaded and installed from the official website or using package managers such as apt-get, or brew.

2.**Create a database**: Once Apache Age is installed, a database can be created using the command-line interface or a GUI tool.

3.**Create tables**: Tables can be creatd using SQL commands.In Apache Age, we can also create graph and document tables using the appropriate commands.

4.**Insert data**:Data can be inserted into the tables using SQL commands or by using the appropriate commands for graph and document data.

5.**Query data**: We can query the data using SQL commands or by using the appropriate query language for graph and document data. 
For example, you can use the Cypher query language to query graph data or use the appropriate JSON functions to query document data.

6.**Scale the database**: Apache Age is designed to be scalable, and more nodes can be added to the database to handle larger volumes of data.

7.**Integrate with other tools**: Apache Age integrates with other Apache projects such as Spark and Kafka, making it a part of a larger data processing ecosystem. These tools can be used to to process and analyze data stored in Apache Age.

Overall, using Apache Age involves creating and managing a database, creating tables, inserting data, querying data, and scaling the database as needed.


To know more about Apache Age, have a look at the Github Repository AGE Github Link: https://github.com/apache/age and https://age.apache.org
Features of Apache Age
Tags: apacheage, database, postgres
Published: 2023-03-13 04:07:49

The key features of Apache Age are:

1.**Hybrid database**: Apache Age is a hybrid database system that combines the relational data model of PostgreSQL with support for graph and document data models.
2.**Graph support**: Apache Age provides native support for graph data, allowing users to store and query graph data using the Cypher query language.
3.**Document support**: Apache Age can store and query JSON, BSON, and Avro data formats, providing a flexible solution for managing document data.
SQL support: Apache Age supports SQL, allowing users to query their data using standard SQL queries.
4.**Scalability**: Apache Age is designed to be scalable and can handle large volumes of data.
5.**High-performance**: Apache Age is optimized for high-performance data processing, providing fast query performance.
6.**Open-source**: Apache Age is an open-source project and is available under the Apache License, Version 2.0.
7.**ACID-compliant**: Apache Age is ACID-compliant, ensuring data consistency and reliability.
8.**Integration with other tools**: Apache Age integrates with other Apache projects such as Spark and Kafka, making it a part of a larger data processing ecosystem.

Overall, Apache Age provides users with a powerful and versatile database system that can manage a wide range of data types and query them using multiple query languages.

To know more about Apache Age, have a look at the Github Repository AGE Github Link: https://github.com/apache/age and https://age.apache.org
Apache Age
Tags: apacheage, postgres, database
Published: 2023-03-13 04:00:43

**What is Apache Age? **

Apache AGE is an open-source extension of PostgreSQL, a popular object-relational database management system. It allows users to use graph database features and Cypher query language in PostgreSQL.

AGE stands for "AgensGraph Extension", and is the graph database management system developed by Bitnine Global Inc. Apache AGE integrates the AgensGraph graph database engine into PostgreSQL, allowing it to provide efficient storage and querying of graph data.

It enables users to store and manage their data in a relational or graph format.This flexibility makes it suitable for a wide range of use cases, including social networking, recommendation systems, fraud detection, and more.

To know more about Apache Age, have a look at the Github Repository AGE Github Link: https://github.com/apache/age and https://age.apache.org
HBD WECODE
Published: 2023-03-13 03:51:46

<!-- ✨This template is only meant to get your ideas going, so please change/add/remove these prompts as you wish! ✨ -->

## I pledge to embrace equality in tech by...

## A validating experience I had in the workplace was...

## One of the biggest obstacles to gender equality in the tech industry is...

## Diversity and inclusion initiatives have positively impacted my workplace by...

## I will commit to educating myself about...

<!-- Once your post is published, it will not appear on the /t/wecoded page until an admin approves it. This is an extra step to ensure there is no abuse on this important tag. -->
101. Leetcode Solution in cpp
Tags: cpp
Published: 2023-03-13 03:43:02

```cpp
/**
 * Definition for a binary tree node.
 * struct TreeNode {
 *     int val;
 *     TreeNode *left;
 *     TreeNode *right;
 *     TreeNode() : val(0), left(nullptr), right(nullptr) {}
 *     TreeNode(int x) : val(x), left(nullptr), right(nullptr) {}
 *     TreeNode(int x, TreeNode *left, TreeNode *right) : val(x), left(left), right(right) {}
 * };
 */
class Solution {
 public:
  bool isSymmetric(TreeNode* root) {
    return isSymmetric(root, root);
  }

 private:
  bool isSymmetric(TreeNode* p, TreeNode* q) {
    if (!p || !q)
      return p == q;

    return p->val == q->val &&
           isSymmetric(p->left, q->right) &&
           isSymmetric(p->right, q->left);
  }
};

```
#leetcode
#challenge
Here is the link  for the problem:
https://leetcode.com/problems/symmetric-tree
My dear Community members!!
Tags: startup, webdev, ai, community
Published: 2023-03-13 03:31:36

My dear dev community members, We all know that now there are quite a number of AI service around us. On this emerging time of AI services, I have come up with a pitch to make a SaaS product. I am in search of a good and experienced mentor who can help us guide and work with us to implement the idea.
If any interested mentors, please contact me.
My LinkedIn: https://www.linkedin.com/in/abhinav-sl/
openGauss Authentication method introduction
Published: 2023-03-13 02:33:30

openGauss provides a variety of different client authentication methods.

Host-based authentication: The server checks the configuration file based on the client's IP address, user name, and database to be accessed to determine whether the user is authenticated. Host authentication allows the host to authenticate some or all system users. Applicable to all users of the system or a subset using the Match command.
Password authentication: including encrypted password authentication for remote connections and non-encrypted password authentication for local connections. Log in to the remote host using the account and password. All transmitted data will be encrypted, but there is no guarantee that the server you are connecting to is the one you need to connect to. There may be other servers pretending to be real servers, that is, being attacked by "man-in-the-middle".
SSL Encryption: Use OpenSSL (Open Source Secure Communication Library) to provide an environment for server-side and client-side secure connections. Users must create a pair of keys for themselves and place the public key on the server they need to access. This level of authentication not only encrypts all transmitted data, but also avoids "man-in-the-middle" attack methods. But the whole login process may take 10 seconds.
The above three authentication methods all need to configure the "pg_hba.conf" file. After the database is installed, the default configuration file will be automatically generated and generally installed in the $GAUSSHOME/data directory. Below we will introduce this key configuration file.

Configuration file parsing
Client authentication is controlled by a configuration file pg_hba.conf, where hba is the abbreviation of host-based authentication , which means host-based authentication). Client access can be set for IPV4, IPV6 and replication privilege (related to logical replication, such as migrating data from openGauss to other databases).
5 Benefits of using Kubernetes
Tags: devops, kubernetes, devjournal, cloud
Published: 2023-03-13 02:31:00

Kubernetes is a popular open-source system for managing and deploying containerized applications. 

Some of the main benefits of using Kubernetes include:


![benefits](https://dev-to-uploads.s3.amazonaws.com/uploads/articles/8cc43n3q81dlyc4wryug.png)

## 1. Scalability: 
Kubernetes makes it easy to scale applications up or down by adding or removing containers as needed. This allows applications to automatically adjust to changes in demand and ensures that they can handle large volumes of traffic.


## 2. High availability: 
It automatically ensures that applications are highly available by scheduling containers across multiple nodes in a cluster and automatically replacing failed containers. This helps prevent downtime & ensures that applications are always available to users.


## 3. Improved resource utilization: 
Kubernetes automatically schedules containers based on the available resources, which helps to improve resource utilization and reduce waste. This can help reduce costs and improve the efficiency of your applications.


## 4. Easy deployment & updates: 
It makes it easy to deploy & update applications by using a declarative configuration approach. This allows developers to specify the desired state of their applications & it will automatically ensure that the actual state matches the desired state.


## 5. Portable across cloud providers: 
It is portable across different cloud providers, which means that you can use the same tools & processes to manage your applications regardless of where they are deployed. This can make it easier to move applications between cloud providers.


Overall, Kubernetes offers a number of benefits for managing and deploying containerized applications, including scalability, high availability, improved resource utilization, and portability.

Thanks for reading this.

If you have an idea and want to build your product around it, schedule a call with [me](https://calendly.com/pragyanatvade).

If you want to learn more in DevOps and Backend space, [follow me](https://dev.to/pragyanatvade).

If you want to connect, reach out to me on [Twitter](https://twitter.com/pragyanatvade) and [LinkedIn](https://www.linkedin.com/in/pragyanatvade/).
郭文贵自导自演“谎言三部曲”
Published: 2023-03-13 02:28:04

郭文贵自导自演“谎言三部曲”

笔者近期闲来无事，独自在家重温了一些颇具年代的老电影，品味经典的同时无意间又想到了郭文贵大放厥词，高谈阔论的情景，口中都是“最重要的人物”、“世界级的高层”、“高级的会议”等等，看完令人不禁哑然失笑。文贵这是当完编剧当演员，当完演员现在竟然又想当导演。殊不知当一个好导演也得需要真才实学，那些经不起推敲的荒谬剧本只能感动一下小蚂蚁们。笔者此文正好跟网友们分享一下郭文贵自导自演的戏码到底灵感来源何处。
第一部：逍遥法外
《逍遥法外》主角弗兰克是FBI有史以来年龄最小的通缉犯，犯罪手段神通广大，伪装身份的能力也是超乎常人。原片中发生的一切，全都重现在文贵的身上。郭文贵人前自诩“正义战士”，实际却官商勾结、非法侵占他人财产，利用公司骗贷、性侵多名女下属等，其罪状数不胜数。不过唯一文贵不比男主角的就是智商，剧中男主演技超群、智商过人，言谈举止都让人无法抓到其把柄，对于初中未毕业的文贵来讲，智商是硬伤，发表言论前后矛盾、逻辑混乱。就在近日的视频中他又干出自扇耳光之事，之前多次盛赞美国媒体，如今竟称在美国“96%的媒体”已经被控制，有人利用美国媒体在诽谤他。这就奇怪了，当初被文贵捧上天言论自由的美国媒体怎么没几天就变成肆意抹黑他的无良媒体了呢？一个人的谎言说的太多，自己都忘了哪是哪了，媒体的作用是披露真相，言论自由不代表会发布虚假信息，为什么将郭文贵弃之蔽履，只因认清了文贵的真面目，不会再轻易上当了。我想此时文贵大概焦头烂额，急需找一个靠谱的“好编剧”为其设计剧情，至少不再让“郭氏好戏”瞬间穿帮。
第二部：飞天大盗
《飞天大盗》是一部十几年前的英国影片，主角虽然都是骗子，却讲述了一群盗亦有道、惩恶扬善之“侠盗”的故事。不过貌似郭文贵看偏了剧情，没学到侠肝义胆却将反面人物学了个淋漓尽致。郭文贵一步步靠坑蒙拐骗起家，身家倍增，得势后又对他人用尽手段、排挤对手。这些靠非法手段敛取的财富，最终的结果还是从哪儿来的就回哪儿去。大连法院对郭文贵控股的“政泉公司”判处了600亿罚金，也让文贵食到了自己当初种下的恶果。如今的文贵手中不仅没了资金，而且还官司不断，但他依然在镜头前泰然自若、谈笑自如，口若悬河讨论着“美国中期选举”“世界经济趋势”，仿佛这个世界上的大事小事都与他郭文贵息息相关。这让我突发奇想，如果在骗子界搞一个“奥斯卡奖”，那郭文贵一定是当之无愧的“奥斯卡最佳男演员”，毕竟除了他谁还能把每天的生活当戏一样演呢？
第三部：臆想成病
《臆想成病》是一部法国电影，郭文贵就着电影片名，自导自演了一场年度大戏。现实失意如何寻求心灵的慰藉，文贵每天都活在自己的幻想中，幻想“喜马拉雅”，自设“蚂蚁帮”，以世界统治者身份指点江山，睥睨天下，如今怕是早已分不清哪个才是现实了吧。连政庇申请都遥遥无期，还有能力组织“美国政府的高官”、“美国军火商老大”、“前国家领导人”、“前巨大基金总顾问”频繁“约会”？在被网友拆穿后，文贵又恬不知耻的搬出了“前克林顿总统的幕僚”、“川普总统的内阁”、“巴西总统最信任的人”等等作为话题，笔者也是不得不佩服文贵脑洞之大，入戏之深。但郭文贵越是穷尽所能虚构事实，越是难掩自己已经穷途末路、无人问津的事实。如今的文贵每天都活在自己的臆想中，自编自导超级英雄拯救世界的戏码，谎言说的太多，竟然自己也信了。
郭文贵近期都在跟着网络热点走，什么事情最火他就说什么，真可算是挖空了心思、费劲了脑汁。归根结底还是一点，文贵如今已是山穷水尽、穷途末路。奉劝你不要再做无用功，迷途知返，不要继续活在自己自导自演的谎言之中！
Boost Your Productivity: Simple Tips for Developers
Tags: focus, pomodoro, boost, developer
Published: 2023-09-12 11:56:03

---
title: Boost Your Productivity: Simple Tips for Developers
published: true
date: 2023-03-13 02:26:45 UTC
tags: focus,pomodoro,boost,developer
canonical_url: https://levelup.gitconnected.com/boost-your-productivity-simple-tips-for-developers-448724cb1d9c
---

[![](https://cdn-images-1.medium.com/max/2000/1*s4tcqci4khPZH5Rak9w1Gg.jpeg)](https://levelup.gitconnected.com/boost-your-productivity-simple-tips-for-developers-448724cb1d9c?source=rss-8f1fd23dbcf6------2)

This article provides useful tips for maintaining productivity during development work.

[Continue reading on Level Up Coding »](https://levelup.gitconnected.com/boost-your-productivity-simple-tips-for-developers-448724cb1d9c?source=rss-8f1fd23dbcf6------2)
Guo Wengui's lies are for political asylum that US goverment can give
Published: 2023-03-13 02:21:13

Guo Wengui's lies are for political asylum that US goverment can give, he uses lies to draw people’s attention but lies can’t bring political asylum.  Lies are not truth, he would face his penalty eventually.
![Image description](https://dev-to-uploads.s3.amazonaws.com/uploads/articles/gey5fzy2haqj6q19ooqb.JPG)
The Digital Theft: How Big Tech Companies Profit from Stealing Your Data
Published: 2023-03-13 01:34:13

As technology has advanced, so has the amount of data that we produce on a daily basis. From the videos we watch on YouTube to the products we buy on Amazon, every click and interaction we make online is recorded and stored. This data is incredibly valuable, and companies have found ways to profit off of it by selling it to third parties. While this practice may seem harmless, it raises concerns about privacy and the ethics of data collection.

Big tech companies like Google, Facebook, and Amazon have been accused of stealing data from users and selling it to advertisers. In the case of Facebook, the Cambridge Analytica scandal revealed that the company had harvested data from millions of users without their consent. This data was then sold to political campaigns, who used it to target users with personalized ads. Similarly, Google has been criticized for tracking users' location data, even when they have turned off location services.

The problem with this data collection is that users are often not aware that their data is being collected or sold. Many people assume that their personal information is safe when they use online services, but the reality is that companies are often more interested in profiting off of their data than protecting their privacy. This is especially concerning when it comes to sensitive data, such as medical or financial information.

One of the main arguments in favor of data collection is that it helps companies improve their products and services. For example, Amazon uses data to recommend products to users based on their past purchases. However, this argument falls apart when companies are selling data to third parties for advertising purposes. In these cases, the primary goal is not to improve the user experience, but to make money.

Another concern is that data collection can be used to discriminate against certain groups of people. For example, if an advertiser is only targeting wealthy users, they may not show ads to people who live in low-income areas. This can perpetuate inequality and lead to further marginalization of already disadvantaged groups.

Overall, it is important for users to be aware of how their data is being collected and used. While some data collection may be necessary for certain online services, companies should be transparent about their data collection practices and obtain user consent before selling their data to third parties. Additionally, users should take steps to protect their privacy, such as using ad blockers or opting out of data collection whenever possible.
Ser perfeccionista na programação? Aí você nunca será um programador!
Published: 2023-03-13 01:01:56

Caminhe devagar, mas caminhe todos os dias. Porque você quer ser perfeccionista na programação?


![Image description](https://dev-to-uploads.s3.amazonaws.com/uploads/articles/v1nhead5hm5gutmt6ybh.gif)


Isso só vai te atrapalhar na carreira e nos estudos. Não seja perfeccionista, nunca!

Você é um humano e não um robô para acertar tudo na primeira. Se orgulhe disso.

**Mas seja competente e dedicado nos estudos. Lembre-se que na programação tudo é aprendizado. Acertando ou errando, você aprende. Na vida não é nada diferente.**


![Image description](https://dev-to-uploads.s3.amazonaws.com/uploads/articles/gqck05xj0av00aej1q5n.gif)


Se você não souber como corrigir tal erro, você aprende pesquisando e se virando. E não desistindo na 3 tentativa. Ou sempre que for fazer algum projeto, não se desespere por não saber como começar a fazer o seu projeto. Não seja perfeccionista. Comece já querendo errar do que acertar.

Se esforce antes de pedir ajuda para os seus amigos ou para uma comunidade. Nada de copiar e colar.

Não tenha preguiça de aprender. Não tenha medo de errar. Não tenha pressa para aprender. Vai com calma. Na vida tudo é aprendizado. 😉

**Tenha amor próprio na hora de aprender programação ou qualquer coisa**

Não queira aprender tudo para ontem, calma. Sua hora de conseguir aprender programação vai chegar. Mas precisa correr atrás e se dedicar. Mas lembre-se: Um dia de cada vez.

![Uploading image](...)
Use a npm package from your private registry
Published: 2023-03-13 01:00:27

Daily as javascript developer, I use npm. most of the time I use packages from public npm registry. It looks like that in my terminal : 
`npm install my-public-package`
and everything is ok.
What happen to me that week, was simple, another department develop a package and push it on our private internal registry.

the first solution was just doing an install from git with a certain ssh .
like this: 
`npm install -S "git+ssh://<your project git ssh url>"`
we will skip this method

another one is to simply setup your npm config, just the followings steps:
update or create an npm config file :
create an .npmrc file in the root of your home : ~/.npmrc

What do you need :
- access to the registry : username, password
- the registry url
- a base64 encoder tool

Now what will be the content of our recently created .npmrc file ?
We add two things : the private registry url and the authentification token, like this :

`//my-private-registry-url/:_auth=<token>
@scope:registry=<http//:my-private-registry-url>`

The scope is the package or the first part of the package, if your package is `@john/doe` the scope will be `@john`, we can just say that the scope is the namespace of the package.

Note that <token> is `base64` of '`username:password`',  username and password of your registry.

after this config you can now install your private npm package as usual doing :
`npm install @john/doe`

That's all, easy and simple, enjoy with your private registry packages.
My Coding Journey So Far....
Tags: webdev, beginners, css, html
Published: 2023-03-12 23:37:35

Hello, My name is Blessing and I'm a female. So I started my tech journey 20th, February, 2023. The first day was basically an introduction class and my boss/tutor was very nice. We started off with HTML (Hypertext Markup Language) and it was a journey with it's own bumps on the way. A week later I was introduced into CSS (Cascading Style Sheets
![Image description](https://dev-to-uploads.s3.amazonaws.com/uploads/articles/1wf2on6vkxmv79kmuzsx.png)).

I've come to learn that HTML is a Markup Language and it's a beginners guide to kickstart your coding journey in #webdev. HTML is just like the skeleton structure of a website, while CSS on the other hand is used to style and layout the webpage.

So far I've done some basis programming and one of my recent work is 'My First Ever Website' and I'm so excited about it. It's not all perfect right now but as I keep learning, improvement is a MUST. I worked on this project with HTML, CSS and just a tiny touch of JavaScript.

This journey I've set out on would definitely come with its own challenges but I hope you guys (My Senior Colleges) makes it any less harder. So please leave out encouraging comments and motivations. And please tell me about some mistakes and challenges you made so I can learn.
Thank you all
#ThatYoungTechLady