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- Discussion on the log rotation strategy of Debian Node.js
- This article discusses the log rotation strategy for running Node.js applications in Debian systems, aiming to effectively manage the size and quantity of log files, avoid excessive disk space, and simplify the log archiving and analysis process. Log Rotation Method utilizes Node.js log library: Many popular Node.js log libraries (such as Winston, Bunyan, and Pino) have built-in log Rotation functionality, which can be easily implemented through configuration. For example, the RotatingFileHandler of the Winston library can set the log file size and quantity limits. Configuration file example (Winston):constwinston=require('wi
- Linux Operation and Maintenance 530 2025-04-12 21:03:01
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- How to view Golang logs on Debian
- This article introduces several methods to view Go language application logs on Debian systems: Method 1: Use the journalctl command If your Go application runs in the form of a systemd service, you can use the journalctl command to view its logs. Assuming your service is called my-go-app, use the following command: the sudojournalctl-umy-go-appjournalctl command also supports multiple options, such as viewing the log of the last startup: sudojournalctl-b or viewing the log of a specific time period: sudojournalctl--since"2024-01-
- Linux Operation and Maintenance 698 2025-04-12 21:00:07
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- How to monitor performance metrics of Debian Node.js
- To monitor Node.js performance metrics on Debian systems, you can use a variety of tools and methods. The following are some commonly used methods and tools: Using Easy-MonitorEasy-Monitor is a Node.js performance monitoring solution based on Egg.js, providing performance monitoring for Node.js processes and system indicators, error log display and dependency, Npm module security risk warning, custom intelligent operation and maintenance alarms and real-time status export of online processes. Using NetDa
- Linux Operation and Maintenance 254 2025-04-12 20:57:01
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- How to integrate Golang log management tools in Debian system
- Integrate Go language log management tools on the Debian system. The steps are as follows: 1. Install the Go locale First, make sure that your Debian system has Go installed. If not installed, execute the following command: sudoaptupdatesudoaptinstallgolang-go Verification Installation: Goversion 2. Select logging tool Go language has a variety of logging tools, such as logrus, zap, zerolog, etc. This article takes logrus as an example. 3. Install logrus using goget command to install: gogetgithub.com/sirupsen/logrus IV. Configuration l
- Linux Operation and Maintenance 429 2025-04-12 20:54:02
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- How to use Golang logs to optimize Debian performance
- This article discusses how to use Golang logging mechanism to improve the performance of Debian system. We will gradually break down the optimization strategy and provide sample code. 1. Efficient logging strategy refined log level: select the appropriate log level (INFO, DEBUG, ERROR, etc.) according to the tuning target. Avoid redundant logs and reduce I/O load. Log rotation and archiving: Regularly segment and archive log files to prevent excessive impacts on performance and storage of single files. 2. Concurrent log processing Goroutine concurrency: Use Golang's Goroutine to implement concurrent log writing to improve efficiency. Goroutine quantity control: use channel or other mechanism to limit
- Linux Operation and Maintenance 389 2025-04-12 20:51:01
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- How to configure Golang log level in Debian system
- To configure the log level of the Golang application on the Debian system, you need to follow the following steps: Select the log library: First, select the appropriate log library. The Go standard library's log packages are simple to use, while third-party libraries such as logrus and zap provide more powerful features and performance. Set log level: Set the corresponding log level according to the selected log library. The settings of different libraries vary. The log package using the standard library logGo standard library does not directly support the log level, but can be simulated by custom output formats. The following example demonstrates how to control output based on a preset level: packagemainimport("log""os"
- Linux Operation and Maintenance 582 2025-04-12 20:48:01
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- How to optimize the output speed of Golang logs on Debian
- This article discusses how to optimize the log output speed of Golang applications on the Debian system and improve system efficiency. The main strategies are as follows: Choice of efficient log libraries: Priority is given to high-performance log libraries, such as zap or logrus, which are usually better than standard library logs. Simplify log level: Adjust log level (debug, info, warning, error, etc.) according to actual needs. The development environment can use the debug level, while the production environment is recommended to use the info or warning level to avoid redundant information output. Asynchronous logging: Using the asynchronous log writing mechanism, the log is written to the buffer, and the independent goroutine is responsible for writing the buffer content to the magnetic field.
- Linux Operation and Maintenance 925 2025-04-12 20:45:01
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- How to diagnose Debian network problems with Golang logs
- This article introduces how to use the Golang logging mechanism to efficiently diagnose network problems in Debian systems. We will explore several practical methods to help you quickly locate and resolve network connection failures. 1. Logging standard library log package: Golang's log package is ideal for recording network requests and response details. Adding logs before and after sending a request can clearly track the sending and receiving process of the request. Here is a simple example: packagemainimport("log""net/http""time")funcmain(){client:=&
- Linux Operation and Maintenance 699 2025-04-12 20:42:01
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- How to improve the security of Debian Node.js
- Security is crucial to deploy Node.js applications on Debian systems. This article outlines many strategies to ensure the security of Node.js applications, covering installation, configuration, continuous monitoring and updates. 1. Node.js installation and update Recommended to use NodeSourcePPA to install and manage Node.js and npm: curl-fsSLhttps://deb.nodesource.com/setup_17.x|sudo-Ebash-sudoapt-getinstall-ynodejs is timely updated to the latest version to fix known vulnerabilities:
- Linux Operation and Maintenance 368 2025-04-12 20:39:01
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- How to resolve GitLab installation conflicts
- When deploying GitLab on Debian systems, you may encounter package conflicts, especially if the system has another Git version installed or has a version conflict with GitLab dependencies. This article provides some troubleshooting and solutions. 1. Preparation: Meet the minimum system requirements. Before installation, please make sure that your Debian system meets the minimum resource requirements of GitLab, including sufficient memory, disk space and CPU performance. 2. System update and dependency installation and update system software package: Use the following command to update the system to the latest version: sudoapt-getupdatesudoapt-getupgrade-y Install necessary dependencies: Install GitL
- Linux Operation and Maintenance 739 2025-04-12 20:36:01
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- How to implement Debian Hadoop resource management
- This article describes how to configure Hadoop Explorer on Debian system. The following steps cover the construction and verification of Hadoop clusters. 1. Hadoop installation and environment configuration First, install Hadoop on the Debian system. Assuming that you have downloaded the Hadoop2.7.2 installation package, you can decompress and install it using the following command: sudomkdir/usr/local/hadoopsudotarxvfhadoop-2.7.2.tar.gz-C/usr/local/hadoopNext, configure environment variables to facilitate subsequent operations. Edit ~/.bashrc or /etc/prof
- Linux Operation and Maintenance 276 2025-04-12 20:33:01
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- How to configure Zookeeper permissions on Debian
- This article guides you how to configure ZooKeeper permissions on Debian systems. The following steps will guide you through the entire process step by step: Step 1: Install ZooKeeper If you have not installed ZooKeeper yet, please use the following command to install: sudoapt-getupdatesudoapt-getinstallzookeeper Step 2: Create and configure ZooKeeper configuration file (zoo.cfg) Copy the sample configuration file and make necessary modifications (skip this step if the file already exists): sudocp/usr/share/doc/zookeeper/examp
- Linux Operation and Maintenance 691 2025-04-12 20:30:02
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- How is GitLab permission management on Debian
- This article describes how to manage GitLab permissions on Debian systems. GitLab adopts a role-based access control (RBAC) model, allowing granular control of users and groups' access to projects and resources. Permission management steps: User and group creation: Create users and groups through gitlab-cli or GitLab Web interface and assign them roles (visitor, reporter, developer, owner). Role and permission assignment: On the project "Settings" > "Members" page, assign the corresponding role to each member to determine their access rights to the project (such as code submission, merge request, etc.). SSH key configuration: It is recommended to configure an SSH key to securely access GitLab. Generate a key
- Linux Operation and Maintenance 596 2025-04-12 20:27:01
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- Debian Hadoop data transmission optimization method
- The key to improving the efficiency of data transmission in DebianHadoop cluster lies in the comprehensive application of multiple strategies. This article will elaborate on optimization methods to help you significantly improve cluster performance. 1. The data localization strategy maximizes the allocation of computing tasks to the data storage nodes, effectively reducing data transmission between nodes. Hadoop's data localization mechanism will automatically move data blocks to the node where the computing task is located, thereby avoiding performance bottlenecks caused by network transmission. 2. Data compression technology adopts data compression technology during data transmission to reduce the amount of data transmitted on the network and thereby improve transmission efficiency. Hadoop supports a variety of compression algorithms, such as Snappy, Gzip, LZO, etc. You can choose the optimal algorithm according to the actual situation. three,
- Linux Operation and Maintenance 734 2025-04-12 20:24:02
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- How to improve data security in Debian Hadoop
- To enhance the data security of DebianHadoop cluster, we need to work together in multiple aspects, covering key links such as system maintenance, user permission management, data encryption, access control, log audit and security policy formulation. The following are some specific implementation steps: 1. System security maintenance is updated in a timely manner: execute aptupdate and aptupgrade commands regularly to ensure that system patches are updated in a timely manner and protect against known vulnerabilities. 2. The principle of minimum permissions for user and permission management: Create an ordinary user and give sudo permissions to avoid using root users directly. SSH key authentication: Configure SSH key pair authentication, disable root remote login and empty password login. 3. Data encryption
- Linux Operation and Maintenance 699 2025-04-12 20:21:01
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