small footprint linux server

look at the process PS aux, this look found the problem, there is a script in the process of a lot of production, Execute the following command immediately to kill: The code is as follows Copy Code Kill-9 $ (PS aux | grep process name |GREP-V grep| awk ' {print $} ') Now look at memory usage, memory is finally normal, OK, and then observe a few minutes, no problem out of the server, continue to check the problem

have completed the data backup on the relevant disk before you proceed. You can make a backup of the disk through a snapshot, and you can see how to Create a snapshot . Download Script Auto_fdisk.zip. After extracting the auto_fdisk.zip, upload the corresponding script to the target server. Add execute permissions for the script by chmod +x , and so on. As root, add execute permissions to the script as follows, and then

, so a page can hold more than 8 inode structures, so the inode structure is a small object. Objects less than 512 bytes are called small objects in the Linux kernel. In fact, the buffer is the main memory of a region, dividing the area into multiple blocks, each piece is a slab, each slab by one or more pages, each slab storage is the object. 2, view slab cache

Server CPU, memory normal, some sites can not open, application pool recycling is normal, how to solve? Questions: Server \iis and ASP issues I would like to ask next you ' site recently a few times a day to play not open very slowly ' only show tile title other No, the site is ASP, foreground-generated HTML, today saw the W3WP.exe occupancy up to 280M, Generally only about 170M of IIS management in the a

Tags: time right click Apply desc CAS pid learn to generate micHow SQL Server uses memory The biggest overhead is typically used for data caching, and if enough memory is available, it will throw the used data and the data that you would like to use in memory, until the memory is low, and the data that is less than the hit is cleared. So generally when we look at statistics IO, we see that the physics read is 0. The second is the cost of the query, ge

Start by explaining which parts of SQL Server memory footprint are made up of. The memory consumed by SQL Server consists primarily of three parts: data caching (database buffer), execution caching (Procedure cache), and SQL Server engine programs. The caching of SQL Server

disk space is sometimes not exactly the same as the size of its own, which is not unique to Linux, and so is in Windows. We look at the explanation of this option's Help document: The apparent size of a file is the number of bytes reported by ' wc–c ' regular files, or more generally, ' Ls–l–block-size=1 ' or ' stat–format=%s '. For example, a file containing the word ' zoo ' with no newline would, of course, which has an apparent size of 3. Such a

Linux root partition utilization 100%, but the view/partition under the directory is not large, not occupied full, how to deal with this?Restart is sure to work, the current situation: after re-restart application, space released1, lsof | grep deletd2. Reboot restartLinux has a disk footprint of 100% and no large files have been found to run out of disk.Using DF-LH under LinuxWhen viewing disks:/DEV/SDA1 13

, the buffer/cached will be quickly recycled. Measurement of memory footprint Measuring how much memory a process consumes, Linux provides us with a convenient way, the/proc directory provides us with all the information, in fact, top and other tools to get the appropriate information. The code is as follows Copy Code Memory usage information for/proc/meminfo machinesThe/proc/

lowtotal:32940112 KB lowfree:2096700 KB swaptotal:32764556 KB swapfree:30819572 KB dirty:164 KB writeback:0 KB anonpages:14153592 KB mapped:20748 KB slab:590232 KB pagetables:34200 KB nfs_unstable:0 KB bounce:0 KB commitlimit:49234612 KB committed_as:23247544 KB vmalloctotal:34359738367 KB vmallocused:278840 KB vmallocchunk:34359459371 KB hugepages_total:0hugepages_free:0hugepages_rsvd:0hugepagesize:2048 KB Swapping will reduce the number of physical pages used in the system in three ways: 1. R

OA is a small web server that can be used on multiple platforms and is common in embedded systems. BOA's official website is www.boa.org, where you can download the latest version of BOA: boa-0.94.13.tar.gz (but this "latest" is something N years ago ). The following is the installation and testing process in the fedora system. In the future, the fedora system will not be repeatedly emphasized, and

time. Way to solve:1, if it is because the parent process is killed, the child process also run cause, then the simplest, kill child process, will be released.2, if you can use IPCS to confirm which user's process, then also not difficult, follow the use of Ipcrm on the line (this is not one by one cases lifted, with the command to check the use of the method is very convenient)3, the implementation of the process of users are more critical users such as: root users, have instances of Oracle us

cracking.Debian users can install directly using apt$ sudo apt-get Install denyhostsOfficial website: http://denyhosts.sourceforge.net/Careful control of directory and file permissions, flexible use of user groupsFor example, if the monitor program Munin needs to access the Web site log, do not modify the log file permission settings, but instead add Munin to the Www-data user group$ sudo usermod-a-G www-data muninUse a dedicated account for system programsTry to use a dedicated account for eve

Sometimes we need to look at the network card traffic on the server in real time, here I write a shell script. The script uses a while true "dead loop", every 10s from "/proc/net/dev" to take a value and calculates the average bandwidth within 10s based on the difference within 10s; Press CTRL + C to stop execution. Scripts are compatible with CENTOS6 and 7, the scripts are not too complex, and the annotations in the script are more nuanced, so I don'

] #9为发送值 #return [values[1],values[9]] #可返回列表 except (Fileexistserror, Filenotfounderror,permissionerror): Print (' Openfileerror ') nBsp;sys.exit ( -1) try: whileTrue: get_values (' first ') #第一次取值 time.sleep (Ten) get_values (' second ') #10s后第二次取值 forarginsys.argv[1:]: r_bandwidth= (int (values_dic[arg+ ' r ' + ') Second ']) -int (values_dic[arg+ ' r ' + ' first '))/1024/1024/10*8 t_bandwidth= (int (values_dic[arg+ ' t ' + ') Second ']) -int (VAlues_dic[arg+ ' t ' + ' first '))/1024/1

Label:A small SQL Server DBA wants to talk about the capabilities of SQL ServerBaidu has not yet searched for relevant individuals to write more valuable articles, at least in the Chinese network of the world there is noBut there is an article on Microsoft's website: "Comparing SQL Server with IBM DB2"The article compares from the following aspects1. TCO and ROI2

Label:Original: A small SQL Server DBA wants to talk about the capabilities of SQL ServerA small SQL Server DBA wants to talk about the capabilities of SQL ServerBaidu has not yet searched for relevant individuals to write more valuable articles, at least in the Chinese network of the world there is noBut there is an a

on most Unix-like systems, including FreeBSD, SunOS 4, Solaris 2, Bsd/os, Linux, OSF, etc.Fast: It's faster than the mainstream Web server (Apache, NCSA, Netscape), and it's much faster in high load situationsSecurity: It strives to protect the host from attack without disrupting the serverTHTTPD is similar to lighttpd, and instead of using fork () to derive child process processing for concurrent requests

run on most Unix-like systems, including FreeBSD, SunOS 4, Solaris 2, BSD/OS, Linux, and OSF.Fast: It is faster than mainstream Web servers (Apache, NCSA, and Netscape). It is much faster under high load.Security: it strives to protect the host from attacks without interrupting the server. Similar to Lighttpd, thttpd does not use fork () for concurrent requests, but uses multiplex technology. Therefore, th

many Linux distributions, we chose CentOS as the Server System Software for small and medium-sized enterprises for the following reasons: "Red Hat Enterprise Linux and Fedora have become mainstream Linux distributions"; "CentOS is the source code re-compiled version of Red