Cat Proc

Methods for viewing system information using cat commands in Linux cat/proc/cpuinfo-cpu (i.e. noun, Mhz, flags like MMX) cat/proc/interrupts-Interrupt Cat/proc/ioports- Device IO Port Cat/proc/meminfo-memory information (i.e. Mem used, free, swap size) CAT/...

Refer to Hadoop_hdfs system dual-machine hot standby scheme. PDF, after the test has been added to the two-machine hot backup scheme for Hadoopnamenode 1, foreword currently hadoop-0.20.2 does not provide a backup of name node, just provides a secondary node, although it is somewhat able to guarantee a backup of name node, when the machine where name node resides ...

Recently read some Linux command line articles, in the system information to learn a lot of commands. Think of a previously written article in fact, Linux so much easier to find these system information to view the command can also be summed up a small thing to come. # CAT/PROC/MTRR View Mtrrs Memory type range Registers # uhttp://www.aliyun.com/zixun/aggregation/11696.html >name-r view current kernel ...

This article is written by http://www.aliyun.com/zixun/aggregation/13357.html ">azure CAT team Piyush Ranjan (MSFT). As infrastructure services (virtual machines and virtual networks) are recently officially released on Windows Azure, more and more enterprise workloads are migrating to the public cloud to take advantage of cloud profitability, scale, and speed. I recently participated in one of the enterprise work negative ...

Home, swap encryption, that/TMP memory run with/dev/urandom, do not/dev/random, because the/dev/random startup will be very slow. (/dev/random must receive enough random factors to work, so it's slow and you have to press the keyboard when you start.) /dev/urandom is non-blocking, although security is a little bit close, but enough. ) $ cat/etc/fstab#/etc/fstab:stat ...

This section collects some of the problems that users use when using the Red Flag asianux Server 3 system Shi as a common solution. Press the <Ctrl+Alt+Del> three key simultaneously to reboot the system. For security reasons, the Red Flag asianux Server 3 system disables the <Ctrl+Alt+Del> reboot of the computer. This is done by modifying the/etc/inittab file, commenting out the statement ca::c ...

Last year in the investigation of a lot of java applications, see some of the phenomenon is the programmer to run on their own environment to read the program rarely lead to troubleshooting problems will be more frustrating, so think of writing this series of articles, procedures To provide functionality to end-users, the code is only one part of it, and it needs to be relied on for jvm, os, server hardware, networking, load balancing, etc. In this series of articles, Several parts, more is only a science role, because os I use are linux, this series ...

The lack of existing hard disk capacity often bothers Linux http://www.aliyun.com/zixun/aggregation/13879.html "> System administrators, The most common reason is the ever-expanding number of data and increasing numbers of users and the need to perform a large number of tasks before finding a replacement for Linux servers. This article describes how to add a hard disk to a Linux system in two ways. The first way is to move a folder from a full partition to another empty ...

Swap space is a part of the system that is partitioned from the hard disk, and when physical memory (RAM) is filled, inactive pages in memory are moved to swap space. The size of the swap space is generally set to 1~2 times the physical RAM, but not more than http://www.aliyun.com/zixun/aggregation/9392.html ">2048MB." The swap space can be one or more dedicated swap partitions (recommended), can be one or more exchange files, or both ...

The network filesystem (nfs,network file system) is a mechanism by which partitions (directories) on a remote host are mounted over the network to the local system, which enables users to share partitions (directories) on the remote host, as if they were operating on the local system, by supporting the network file system. . In the development of embedded Linux, developers need to do all the software development on the Linux server, cross compile, the general FTP way to download the executable file to the embedded system operation, but this way not only effective ...