Linux

1) Check current zombie process information# Ps-ef | grep defunct | Grep-v grep | Wc-l175# Top | Head-2top-15:05:54 up $ days, 23:49, 4 users, load average:0.66, 0.45, 0.39tasks:829 Total, 1 running, 479 sleeping, 174 stopped, 175 zombie# Ps-ef |

Reprinted from: http://velep.com/archives/973.htmlThe run time of a statistical function or a piece of code is often encountered in software development. The running time can be used to analyze the operation efficiency and performance of the

one, find command format1. The general form of the Find command is;find Pathname-options [-print-exec-ok ...]2, the parameters of the Find command; The directory path that the Pathname:find command looks for. For example, use. To represent

1. IntroductionWhat is GRUB? GRUB Full name Grand Unified boot Loader, which is a boot loader-it is responsible for loading the kernel and booting the Linux system. GRUB can also boot other operating systems, such as FreeBSD, NetBSD, OpenBSD, GNU

Last article we successfully installed Docker under Windows and exported a simple Hello World program. In this article we will use Docker's existing cloud image Training/webapp to publish a simple Python web program that outputs Hello World in a

Linux kernel design and implementation-kernel synchronization and Linux kernel SynchronizationKernel SynchronizationSynchronization IntroductionSynchronization Concept Critical section: it is also called a critical section, which is a code segment

Number of physical CPU cores on linux servers. number of kernels. view the number of threads and detailed description of the relationshipThe company's servers are purchased in several batches, so the configuration is not very similar, especially in

Linux searches for files larger than 100 MB, and linux searches for files larger than MBFind/-type f-size + 1000000 kSearch for files larger than MB under home in linux Find.-type f-size + 1000000 kLocate at home.If not, try du-h | grep [100-999] M.

First-recognized Log File System in centos-ext3 Outline 1. Log File System 2. Advantages of ext3 3. Three log modes of ext3 4. Select log Mode 1. Log File System Generally, when a file is written to a system running, the metadata of the file (such

Rotten mud: NFS is used for storage and KVM integration, and nfskvm Integration This article was sponsored by Xiuyi linfeng and first launched in the dark world. In previous articles about NFS, we introduced NFS mounting and so on. This article

Use the cheat tool in Linux to learn how to use system commands Cheat is a tool that is very suitable for Linux system administrators. It helps you quickly and easily get familiar with the use of system commands in Linux, such: Cheat installation

File compression and packaging in linux --- compress, gzip, zcat, bzip2, bzcat, tar, find, tarfile, tarballCommon Linux compressed file extensions *. Z compress compressed files (replaced by gzip) *. Gz gzip compressed files *. Bz2 bzip2 compressed

Real-time file backup using Linux commands-incron, rsync, and inotify I,Rsync, incronIntroduction For details about the rsync tool and its use with the cron tool for Scheduled backup, refer to the blog:

CoreOS: Linux for cloud computing and data centers Bkjia has long been a popular operating system for cloud computing and data centers. However, since CoreOS was released, some people finally designed a Linux for cloud computing and data

The main line of Linux Kernel 3.12.7 has been released, and this short tutorial will show you how to upgrade in Ubuntu. If you are running Ubuntu 13.10 or a later version, it also happens that your system is not installed with the latest kernel.

A fellow villager talked to me about the basic interview questions for a large company in Shanghai. The interview results were not satisfactory, but I still shared the interview questions. I sang the video for the first time and gave lectures to

The text editing software CherryTree 0.33.0 has been released. The following describes how to install it in Ubuntu. CherryTree is a text editor with advanced editing features, such as syntax highlighting, spelling check, export to HTML, password

Deploy Hbase in the Hadoop cluster and enable kerberos System: LXC-CentOS6.3 x86_64 Hadoop version: cdh5.0.1 (manmual installation, cloudera-manager not installed) Existing Cluster Environment: node * 6; jdk1.7.0 _ 55; zookeeper and hdfs (HA)

OwnCloud is a free software developed from the KDE community and provides private Web services. Currently, main functions include file management (built-in file sharing), music, calendar, and contacts, which can be run on PCs and servers. In short,

Squid cache (Squid for short) is a popular free software that complies with the GNU General Public License. As the front cache server of the web server, Squid can request data from the web server and cache data. It can also be used in the LAN to