[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

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how to describe kafka topics, 카프카 토픽 정보 확인하기

To describe Kafka topics, you can use the kafka-topics.sh script, which is included in the Kafka distribution, or Kafka Admin APIs to programmatically fetch topic information. Here are the ways to describe Kafka topics: 1. Using kafka-topics.sh Script The kafka-topics.sh command-line tool allows you to describe topics on the Kafka cluster. You can use the --describe flag to get details like the number of partitions, replicas, leader, and ISR (in-sync replicas). Command Syntax: bin/kafka - topics . sh - - describe - - topic < topic - name > - - bootstrap - server < broker - address > Example: bin/kafka - topics . sh - - describe - - topic my - topic - - bootstrap - server localhost:9092 Output Example: Topic: my-topic PartitionCount: 3 ReplicationFactor: 2 Configs: segment.bytes= 1073741824 Topic: my-topic Partition: 0 Leader: 1 Replicas: 1 , 2 Isr: 1 , 2 Topic: my-topic Partition: 1 Leader: 2 Replicas: 2 , 1 Is...
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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...
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ftplib.error_perm: 550 Permission denied

The 550 Permission denied error in ftplib occurs when the FTP server denies access to the specified file or directory. This error can be caused by several issues such as: Incorrect file path or directory path on the server. Lack of write permissions for the specified directory. The FTP user does not have the required permissions to upload to the given directory. The remote directory may not exist. Steps to Troubleshoot and Resolve the Issue Here are some steps you can try to fix the 550 Permission denied issue: 1. Check the File Path and Directory on the FTP Server Make sure the remote path you are trying to upload to exists on the FTP server. If you're uploading to a specific directory, you may need to create it first. You can use the following code to list the files and directories on the server to ensure your paths are correct: from ftplib import FTP def list_files (ftp_host, ftp_user, ftp_password) : try : ftp = FTP(ftp_host) ftp.login(...
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JAVA 실행 스크립트

JAVA 실행 스크립트 launch start script #!/bin/bash PRG="$0" INSTANCE="$1" CATALINA_HOME="/usr/local/tomcat" JAVA_HOME="/usr/local/java" LANG="ko_KR.UTF-8" PRGDIR="$CATALINA_HOME/bin" LOGDIR="$CATALINA_HOME/logs" EXECUTABLE=catalina.sh CATALINA_BASE="/www/tomcat/$INSTANCE" MEMSIZE=`cat /proc/meminfo | fgrep MemTotal | awk '{print$2}'` ((GB=$MEMSIZE/ 1000000)) if [ $GB -ge 4 ]; then XMS=2g XMX=4g else XMS=512m XMX=1g fi JAVA_DEBUG_OPTS=" -Xdebug \ -Xrunjdwp:transport=dt_socket,address=4102,server=y,suspend=n \ -Dcom.sun.management.jmxremote \ -Dcom.sun.management.jmxremote.port=8999 \ -Dcom.sun.management.jmxremote.ssl=false \ -Dcom.sun.management.jmxremote.authenticate=false" JAVA_OPTS=" -server -Dserver=$INSTANCE \ -Dfile.encoding=UTF-8 \ ${...
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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...
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Pyspark 를 사용한 테이블 조인, table join with pyspark

두 개의 HBase 테이블을 가지고 PySpark 를 통해 통계 데이터를 생성하려면 다음과 같은 과정이 필요합니다. PySpark와 HBase를 연동하려면 Spark와 HBase 간의 통신을 설정하고, 테이블 데이터를 불러온 후 필요한 통계를 계산하는 로직을 구현해야 합니다. 아래는 PySpark와 HBase 연동 및 데이터 처리 과정에 대한 전체 흐름과 예제 코드입니다. 1. 환경 설정 및 의존성 추가 Spark와 HBase 간의 통신을 위해 몇 가지 의존성 패키지가 필요합니다: hbase-client : HBase 클라이언트 라이브러리 hbase-spark : Spark와 HBase 간의 통합을 지원하는 모듈 다음과 같은 의존성을 Spark 환경에 추가해야 합니다: spark-submit \ --jars /path/ to /hbase-spark.jar,/path/ to /hbase-client.jar \ your_spark_script.py Spark 환경에 HBase 관련 의존성을 추가하지 않으면 PySpark 코드에서 HBase와의 연동이 제대로 동작하지 않습니다. 사용 중인 클러스터 환경에 따라 이 설정이 달라질 수 있습니다. 2. SparkContext 설정 PySpark에서 HBase와 연동하려면, hbase-site.xml 파일을 참조하거나 HBase의 설정을 명시적으로 지정해야 합니다. 이 예제에서는 SparkSession과 Hadoop 설정을 통해 HBase와의 연동을 준비합니다. from pyspark.sql import SparkSession # SparkSession 생성 (HBase와 통신 준비) spark = SparkSession.builder \ .appName( "HBase-Stat-Job" ) \ .config( "spark.hadoop.hbase.zookeeper.quorum" , "zookeeper-server...
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Offset out of range error in Kafka, 카프카 트러블슈팅

The "Offset out of range" error in Kafka typically occurs when a consumer tries to read an offset that no longer exists on the broker. This can happen for several reasons, such as: The offset is smaller than the earliest offset available for the topic partition (i.e., the messages have been deleted due to log retention policies). The offset is larger than the latest offset available for the topic partition (i.e., the consumer is trying to read beyond the latest message). Steps to Resolve "Offset Out of Range" Error 1. Check Current Offsets Before making changes, it's useful to understand the current offsets and the offset range available for the topic partitions. Use the kafka-consumer-groups.sh script to describe the consumer group: bin/kafka-consumer-groups.sh --bootstrap- server localhost: 9092 --describe -- group <consumer- group -id> This command will show the current offsets, log end offsets, and the lag for each partition. 2. Reset the...
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Reactjs datetime range picker

To create a datetime range picker in React, you can use a library such as react-datetime-range-picker . This library provides a customizable date and time range picker component that you can easily integrate into your React application. Here's an example of how you can use it: Install the library using npm or yarn: npm install react-datetime- range -picker Import the necessary components into your React component: import React, { useState } from 'react' ; import DateTimeRangePicker from 'react-datetime-range-picker' ; Create a state to hold the selected date and time range: const [selectedRange, setSelectedRange] = useState({ startDate: null , endDate: null }); Render the DateTimeRangePicker component and handle the selection changes: ```jsx const handleRangeChange = (range) => { setSelectedRange(range); }; return ( ); ``` In the example above, the DateTimeRangePicker component is rendered with the onChange event handler and th...
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Create fixed rounded button by Tailwind

To create a fixed, rounded button using Tailwind CSS , you can combine Tailwind's fixed utility (for positioning) with the rounded classes (for rounding the button). This is useful if you want a button that stays in a fixed position on the screen, such as at the bottom-right corner. Here’s how to do it: Example of a Fixed Rounded Button <button class="fixed bottom -4 right -4 bg-blue -500 text-white px -6 py -3 rounded-full shadow-lg"> Fixed Button </button> Explanation: fixed : Positions the button fixed relative to the viewport. It will stay in the same position even when the user scrolls. bottom-4 : Positions the button 1rem (16px) from the bottom of the screen. right-4 : Positions the button 1rem (16px) from the right side of the screen. bg-blue-500 : Sets the background color to blue. text-white : Sets the text color to white. px-6 py-3 : Adds horizontal ( px-6 ) and vertical ( py-3 ) padding for sizing the button. rounded-full : Mak...
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To change the ESE index in Fluent Bit

To change the ESE index in Fluent Bit, you can follow these steps: Open the Fluent Bit configuration file (typically located at /etc/td-agent-bit/td-agent-bit.conf or /etc/fluent-bit/fluent-bit.conf , depending on your installation). Locate the output section for the ESE output plugin. It should look something like this: [OUTPUT] Name ese Match ese.* Index fluent-bit Database /var/ lib / td - agent - bit / ese . db Interval_Sec 10 Change the value of the Index parameter to the desired name of your ESE index. For example, if you want to create an index named "myindex", you would change the configuration to: [OUTPUT] Name ese Match ese.* Index myindex Database /var/ lib / td - agent - bit / ese . db Interval_Sec 10 Save the configuration file and restart the Fluent Bit service to apply the changes. On Linux, you can restart Fluent Bit using the following command: sudo systemctl ...
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