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This guide walks through why nginx logs need daily rotation, demonstrates manual log splitting, provides a complete shell script for automated daily log rotation, explains logrotate configuration, and shows how to test and schedule the process with cron, ensuring clean and manageable log files.
This article presents two Bash scripts that automate MySQL multi‑database backups with per‑table dumps and rotate Nginx access logs daily by moving them into month‑based directories and signaling Nginx to reopen its logs.
When adding a ZooKeeper observer to a Codis cache cluster, the election port (3888) was unreachable because the QuorumCnxManager listener thread vanished, prompting telnet and log checks, and leading to a successful recovery by rolling upgrade to ZooKeeper 3.4.13, rebuilding the data directory, performing a rolling restart, and decommissioning the temporary node, thereby restoring full cluster quorum and normal Codis‑Proxy operation.
This article explains how to improve PHP logging performance by controlling log levels, batching writes, using asynchronous processes, and implementing log rotation, providing clear code examples for each technique in real-world PHP applications.
This article explains how to configure Nginx to split access logs by day using the $time_iso8601 variable, align log timestamps with the local timezone via Docker‑Compose or Dockerfile settings, and introduces the GoAccess tool for visual log analysis.
This guide explains how logrotate automates log rotation, detailing its configuration files, common directives such as rotate, daily, size, compress, postrotate, and sharedscripts, and provides practical examples for managing large log files efficiently on Linux servers.
This article explains how to troubleshoot fragmented log files caused by the Supervisor process manager on Linux, covering configuration details, log‑rotation constraints, diagnostic commands, and the eventual resolution by restarting the supervisord service.
The article details a MongoDB 3.4 sharded cluster incident where a sudden connection storm overwhelmed the primary, leading to replication lag, automatic failover, and how monitoring, log analysis with mtools, and a custom log‑rotation script were used to diagnose and resolve the issue.
A MongoDB shard node’s logs unexpectedly turned into PCX image files due to improper log rotation using echo, causing CPU spikes and slow‑query analysis failures; the investigation reproduces the issue, explains the header corruption, and presents a SIGUSR1‑based solution to restore proper ASCII logs and retrieve the needed time‑range data.
This article presents a detailed overview of Nginx performance optimizations, module types, load‑balancing algorithms, log rotation scripting, custom error page setup, smooth restart procedures, configuration checks, and a comparative analysis with Apache and LVS for backend server administrators.
The article explains how the Linux top command reveals filesystem cache usage, why large log files can waste cache memory, and proposes hourly log rotation with compression, using lsof to identify cached files and tools like zless to view compressed logs.
This article explains how to use the Linux tail command to monitor log files in real time, filter errors, and reliably continue following logs after rotation by using the -F option, providing practical guidance for system administrators and developers.