Jack Ma, 马云(馬雲), 마윈

 





댓글

댓글 쓰기

이 블로그의 인기 게시물

[Ubuntu] *.deb 파일 설치 방법

확장자가 .deb 인 파일은 원래 Debian 리눅스에서의 설치파일입니다. Ubuntu 는 원래 Debian 리눅스에서 파생되었기 때문에, 많은 부분에서 서로 닮아 있습니다. 따라서 별다른 변환 절차 없이 아래와 같이 바로 설치가 가능합니다. [user@hostname]# sudo dpkg -i *.deb *.rpm 파일을 *.deb 파일로 변환 [user@hostname]$ sudo apt-get install alien [user@hostname]$ sudo alien -c *.rpm
자세한 내용 보기

how to delete all issues on project in sentry, 센트리 이슈 삭제하기

As of now, Sentry doesn't have a direct feature to delete all issues in bulk through the web interface. However, there are a few methods you can use to archive, resolve, or delete issues programmatically or by adjusting project settings: 1. Bulk Archive Issues from the Web Interface Though there is no mass delete option, you can bulk archive or resolve issues, which essentially hides them from active issue lists. Steps: Go to your Sentry project. In the issue list view, select the issues you want to archive or resolve. Use the "Select All" checkbox to select multiple issues. Choose "Resolve" or "Archive" from the bulk action dropdown. However, this doesn't delete the issues permanently; they will be archived or marked as resolved. 2. Adjust Retention Policy (Data Retention Settings) If you're looking to remove older issues, you can adjust the retention policy at the organization level. Sentry allows you to configure how long issue...
자세한 내용 보기

Read a file in Java, 자바 파일 읽기

To convert a File object into an InputStream in Java, you can use the FileInputStream class. Here's an example: import java.io.File; import java.io.FileInputStream; import java.io.IOException; import java.io.InputStream; public class FileToInputStreamExample { public static void main(String[] args) { File file = new File( "path/to/file.txt" ); try { InputStream inputStream = new FileInputStream(file); // Use the inputStream as needed... // Close the inputStream when you're done inputStream.close(); } catch (IOException e) { e.printStackTrace(); } } } In the code above, replace "path/to/file.txt" with the actual path to your file. The FileInputStream class is used to create an input stream from the file. You can then use the inputStream object to read the contents of the file or perform any other operations you need. Finally, rem...
자세한 내용 보기

ssh-copy-id in ansible

ssh-copy-id is a command-line tool used to copy your public SSH key to a remote server's authorized_keys file, allowing you to log in to the server without entering a password. Ansible is an open-source automation tool used to manage and configure multiple remote servers simultaneously. In Ansible, you can use the authorized_key module to manage the authorized keys of remote servers. This module allows you to add, remove, or replace SSH keys in a remote user's authorized_keys file. To add your public SSH key to a remote server using Ansible, you can use the authorized_key module. Here's an example playbook that adds your public SSH key to a remote server's authorized_keys file: - name: Add SSH key to authorized_keys hosts: your_server become: true tasks: - name: Install SSH key for current user authorized_key: user: your_username key: " {{ lookup('file', '/path/to/your/public/key/id_rsa.pub') }} " ...
자세한 내용 보기

React datetime range picker

To implement a datetime range picker in React, you can use various libraries that provide this functionality. One popular library is react-dates . Here's an example of how you can use it to create a datetime range picker: First, install the required dependencies by running the following command: npm install react-dates moment Once the installation is complete, you can use the following code as an example: import React, { useState } from 'react' ; import { DateRangePicker } from 'react-dates' ; import 'react-dates/lib/css/_datepicker.css' ; import 'react-dates/initialize' ; const DateTimeRangePicker = () => { const [startDate, setStartDate] = useState( null ); const [endDate, setEndDate] = useState( null ); const [focusedInput, setFocusedInput] = useState( null ); const handleDateChange = ( { startDate, endDate } ) => { setStartDate(startDate); setEndDate(endDate); }; return ( < div > ...
자세한 내용 보기

Delete topic on Kafka, 카프카 토픽 삭제하기

To delete a topic in Kafka, you need to ensure that the Kafka cluster is properly configured to allow topic deletions and then execute the deletion command. Here's a step-by-step guide on how to do this: 1. Enable Topic Deletion in Kafka (if not already enabled) By default, Kafka does not always enable topic deletion. You need to ensure that the Kafka broker has the following setting in the configuration file ( server.properties ): delete .topic .enable =true This setting allows topics to be deleted. If it is set to false , topic deletion will not work. You must restart the Kafka broker after making this change. 2. Delete a Topic Using Kafka Command-Line Tools Once topic deletion is enabled, you can delete a Kafka topic using the Kafka command-line tool ( kafka-topics.sh or kafka-topics.bat for Windows). Example: $ kafka-topics. sh --bootstrap-server localhos t:9092 -- delete --topic <topic_name> Replace <topic_name> with the actual name of the topic you...
자세한 내용 보기

Using the MinIO API via curl

Using the MinIO API via curl is straightforward, as MinIO is compatible with Amazon S3 API, so most commands follow a similar syntax. Here’s a guide on how to use curl with the MinIO API for some common operations like uploading, downloading, and managing objects. Prerequisites Access Key and Secret Key : Obtain your MinIO Access Key and Secret Key. MinIO Endpoint : Know your MinIO server endpoint, e.g., http://localhost:9000 . Bucket : You may need an existing bucket name, or create a new one using the commands below. Authentication Header For requests to work with MinIO, you need to include authentication in the headers. MinIO uses AWS Signature Version 4 for signing requests. Common Examples 1. List Buckets To list all buckets in your MinIO account, use: curl -X GET \ - -url "http://localhost:9000/" \ - H "Authorization: AWS <AccessKey>:<Signature>" 2. Create a Bucket To create a new bucket, use: curl -X PUT \ - -url "htt...
자세한 내용 보기

Create topic on Kafka with partition count, 카프카 토픽 생성하기

To create a Kafka topic with 100 partitions, you can use the Kafka command-line tool ( kafka-topics.sh or kafka-topics.bat for Windows). When creating a topic, you can specify the number of partitions and the replication factor. Here’s how to create a topic with 100 partitions: Step-by-step instructions: Open a terminal on your machine where Kafka is installed. Run the kafka-topics.sh command with the necessary options to create the topic: kafka - topics . sh - - create - - bootstrap - server localhost:9092 - - replication - factor 1 - - partitions 100 - - topic < topic_name > --bootstrap-server localhost:9092 : Specifies the Kafka broker (or cluster) address. Replace localhost:9092 with your actual Kafka broker address if it’s different. --replication-factor 1 : Specifies the number of replicas for each partition. In this example, it's set to 1 , but in a production environment, you’ll want a higher replication factor for redundancy. --partitions 10...
자세한 내용 보기

How to change java version on gradle of flutter

To change the Java version used by Gradle in a Flutter project, you need to modify the build.gradle files of your Flutter project. Here's how you can do that: Steps: Locate the build.gradle files: You will find two build.gradle files in your Flutter project: One at the root level: <project_root>/android/build.gradle Another inside the app module: <project_root>/android/app/build.gradle Update the Java version in android/build.gradle : In the root build.gradle file, ensure that the sourceCompatibility and targetCompatibility settings are set to the desired Java version. Open <project_root>/android/build.gradle Look for the compileOptions block (or create it if it's not present). Update the Java version like this: allprojects { repositories { google() mavenCentral() } } subprojects { afterEvaluate { project -> if ( project .hasProperty( "android" )) { android { ...
자세한 내용 보기

Sparse output from sparse encoder

Let's create an example of a sparse output from a hypothetical sparse encoder. This encoder takes an input vector and outputs an encoded representation where most of the values are zero (i.e., sparse). Example: Sparse Encoder Output Input : A dense input vector: [ 0.9 , 0.1 , 0.8 , 0.6 , 0.2 , 0.3 ] Output : A sparse encoded vector (after applying sparsity constraints, e.g., thresholding small values): [ 0.9 , 0.0 , 0.8 , 0.6 , 0.0 , 0.0 ] Code Example (Python) Here's a Python code snippet that demonstrates how sparsity might be applied to an encoder's output: import numpy as np # Example input: Dense vector input_vector = np. array ([ 0.9 , 0.1 , 0.8 , 0.6 , 0.2 , 0.3 ]) # Sparsity threshold: Values below this are set to zero threshold = 0.5 # Applying sparsity sparse_output = np.where(input_vector > threshold, input_vector, 0.0 ) print ( "Dense Input: " , input_vector) print ( "Sparse Output: " , sparse_output) Output : Dense...
자세한 내용 보기