No space is released after CentOS deletes the file.
Today, I found that the home space of a server is full, so I want to clear useless files. After I delete the files, I find that the available space has not changed.OS: centos6.0
Symptom:
Disk space
Common Linux commands (27th) and common linux commands
In linux, the df command is used to check the disk space usage of the file system of the linux server. You can use this command to obtain the space occupied by the hard disk and the remaining
For file commands, we have discussed some simple and intuitive management commands in detail here. It only describes the functions of other complex commands, so that you can know the existence and purpose of these commands when you need to use them.
When Jenkins is automatically built, java. io. IOException: No space left on device is returned,
In this case, the memory space of the server where Jenkins is located is insufficient. First, check the disk space usage on the server. The df-hT
Oracle provides a number of methods for the use, monitoring, and maintenance of data spaces. At the same time, features in various versions are gradually enhanced to simplify the complexity of this aspect, improve application running efficiency.
1.
SHELL scripts have been studied in recent days. To facilitate Oracle O & M and simplify management, it is very necessary to learn some SHELL scripts.
SHELL scripts have been studied in recent days. To facilitate Oracle O & M and simplify management,
Introduction to File system operations and Disk Management experimentsThe file system operation of this section of the experiment is very simple and contains only a few parameters of several commands, but mastering these will also help you in the
What is SphinxSphinx is a full-text search engine released under GPLv2, commercial authorization (for example, embedded in other programs) needs to contact us (Sphinxsearch.com) for commercial authorization. Generally, Sphinx is an independent
How to get the size of the disk partition through the PHP file system function not only can the file system function to the directory, the file operation, but also can obtain the directory, the file related information, then can obtain the disk
Glances allows you to view the most resource projects among similar tools. for details, see: CPU usage memory/SWAP usage system load information kernel statistics and run queue information hard disk read/write data volume network transmission data
How can I use the php file system function to obtain the size of disk partitions? the file system function can not only operate on directories and files, but also obtain information about directories and files, can I obtain the size of the disk
This time, we updated some common CentOS commands for disk operations. I hope it will be helpful for you to use CentOS. This article is very useful from the perspective of actual work. Here, we mainly use common CentOS commands for disks. Check
Performance Tuning overview:
I. Overview
2. what is performance tuning? (What)
3. Why performance optimization? (Why)
4. When do I need performance optimization? (When)
5. where do I need performance tuning? (Where)
6. Who will perform performance
Uncover new features of SQL Server 2014 (3)-updatable column storage clustered index,
Introduction
The column storage index actually exists in SQL Server 2012, but SQL Server 2012 only allows the creation of non-clustered column indexes, this means
Check the table space in the database. You may have a lot of scripts in use. You can also read it and share an example of using shell scripts to check the table space usage.
Check the table space in the database. You may have a lot of scripts in use.
Statistics on the size of SQL Server user data tables (including the total number of records and space usage) in SQL Server, a simple combination of sp_spaceused and sp_msforeachtable stored procedures, you can easily calculate the size of the user
Preface
This article describes DBA's daily responsibilities in monitoring Oracle databases and how to use shell scripts to perform repeated monitoring. This article first reviews some common DBA Unix Commands and explains how to regularly execute
In common programming, you sometimes need to obtain disk space usage. In most cases, the disk_free_space and disk_total_space functions are used. The following example gets the size of all disk space on the server. the instance format is as follows:/
Htop is an interactive process viewer
First piece1: First CPU Utilization 2:Second CPU Usage3:Third CPU Usage4:Fourth CPU UtilizationMem: Memory usage swap: Swap space usage second blockTasks: Total number of processesNumber of Threads Load
Oracle compression technology includes basic table compression, OLTP table compression, and index compression) and hybrid column compression (hybrid columnar compression (HCC )).
Basic compression was launched from 9i and is the default compression
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