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centos postgresql resource monitoring

Detailed explanation of PostgreSQL database resource monitoring scheme under CentOS system This article introduces a variety of methods to monitor PostgreSQL database resources on CentOS system, helping you to discover and solve potential performance problems in a timely manner. 1. Use PostgreSQL built-in tools and views PostgreSQL comes with rich tools and views, which can be directly used for performance and status monitoring: pg_stat_activity: View the currently active connection and query information. pg_stat_statements: Collect SQL statement statistics and analyze query performance bottlenecks. pg_stat_database: provides database-level statistics, such as transaction count, cache hit

Apr 14, 2025 pm 05:57 PM

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How to check the running status of nginx

The methods to view the running status of Nginx are: use the ps command to view the process status; view the Nginx configuration file /etc/nginx/nginx.conf; use the Nginx status module to enable the status endpoint; use monitoring tools such as Prometheus, Zabbix, or Nagios.

Apr 14, 2025 am 11:48 AM

nginx access 内存占用

How to monitor Tomcat log exceptions

This article introduces several methods to monitor Tomcat log exceptions to help you discover and solve problems in a timely manner and ensure the stable operation of the application. 1. Using ELK stack to achieve centralized monitoring. It is recommended to use ELK (Elasticsearch, Logstash, Kibana) stack for efficient log monitoring. Data acquisition (Filebeat): Configure Filebeat to collect warning (WARN) and error (ERROR) levels in Tomcat log files (such as catalina.out). Logstash: Logstash preprocesses collected logs, such as filtering, parsing and conversion. Data storage

Apr 13, 2025 am 09:30 AM

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Emergency handling of insufficient disk space causing MySQL crash

The solution to the crash caused by insufficient MySQL disk space is: 1. Confirm the problem: Check the error information in the system log; 2. Make room: delete unnecessary files (operate with caution, backup first), clean the MySQL log (clear ib_logfile or slow_query.log after backup, or use mysqlbinlog to clean the binary log and set the log rotation policy); 3. Expand the disk space: Contact the server provider or administrator. Preventive measures include regularly monitoring disk space, setting up alarm mechanisms, rational database design, regular cleaning of useless data, optimizing database performance, and formulating complete backup and recovery strategies to avoid data loss.

Apr 08, 2025 am 10:24 AM

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Apache Troubleshooting: Diagnosing & Resolving Common Errors

Apache errors can be diagnosed and resolved by viewing log files. 1) View the error.log file, 2) Use the grep command to filter errors in specific domain names, 3) Clean the log files regularly and optimize the configuration, 4) Use monitoring tools to monitor and alert in real time. Through these steps, Apache errors can be effectively diagnosed and resolved.

Apr 03, 2025 am 12:07 AM

apache

PostgreSQL monitoring method under Debian

This article introduces a variety of methods and tools to monitor PostgreSQL databases under the Debian system, helping you to fully grasp database performance monitoring. 1. Use PostgreSQL to build-in monitoring view PostgreSQL itself provides multiple views for monitoring database activities: pg_stat_activity: displays database activities in real time, including connections, queries, transactions and other information. pg_stat_replication: Monitors replication status, especially suitable for stream replication clusters. pg_stat_database: Provides database statistics, such as database size, transaction commit/rollback times and other key indicators. 2. Use log analysis tool pgBadg

Apr 02, 2025 am 07:27 AM

工具 red

What causes the Zabbix interface style failure to load in CentOS7?

Zabbix installation interface style loading failed troubleshooting In CentOS7 environment, after installing Zabbix using Apache, php7.3.5, zabbix5.0 and mysql5.7, C appears on the user interface...

Apr 01, 2025 pm 12:51 PM

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