h2g2 42

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After MySQL starts, the problem is resolved (ibdata1 file corruption is caused)

Computer room A server on the MySQL run for some time, suddenly appeared a very strange phenomenon: After restarting can not be restored! The exact situation is: After starting MySQL, it is closed again. View the MySQL error log as follows:160920 22:41:41 Mysqld_safe starting mysqld daemon with databases from/home/mysqldata/2016-09-20 22:41:41 0 [Note]/data/app/mysql5.6.25/bin/mysqld (mysqld 5.6.25-log) starting as Process 32372 ...2016-09-20 22:41:42

Linux Learning 12-linux file properties

Tags: mtime original article ali span size Linux file sizes execute shorthandLinux file propertiesIn Linux, for each file has the corresponding attributes, in the root user home directory of Linux in the new file A.txt as an example, enter a few characters in the A.txt Use command Ls-ild a.txt to view file permissions, etc. [Email protected] ~]# Ls-ild a.txt1057689-rw-r--r--. 1 root root 8 Apr 9 19:42 a.txtDescriptionFirst column: 105768

C language will generate a random number into an array, the data can not be the same

printing tm,tm_year from 1900, so to add 1900, month Tm_mon, calculated from 0, so add 13. Ideas:Using random numbers to generate an array subscript in the 0~n-1 range, when the corresponding number is not 0, then set to N-i-1, so that only need to put n-1, the last one is 0.The method for generating a random number in the 0~n-1 range is to take the random number pair n to generate the rand ().4. Operation Result:Time:tue APR 19 12:28:42 2016A[7]:23T

Ten examples of chmod commands in unix and linux

by each file refer to the combination of file permission attributes and type attributes. You can use the ls command to view the permissions of personal files and directories. For example, the following file: 1example @ localhost ~ /Test ls-lrt stock_trading_systems 2-rwxrwxrwx 1 example Domain Users 0 Jul 15 :42 stock_trading_systems * All users, group members, and others have read, write, and execute permissions on them. You can learn more about fil

Use zebra for OSPF experiments

int eth0: 192.168.5.1212002/04/28 16:26:37 OSPF: ospf_flood_through_interface (): considering NBR 192.168.5.1212002/04/28 16:26:42 OSPF: SPF: timer (SPF calculation expire)2002/04/28 16:26:42 OSPF: ospf_spf_calculate: Start2002/04/28 16:26:42 OSPF: ospf_spf_calculate: Running Dijkstra for area 0.0.0.02002/04/28 16:26:42

Innobackupex full backup database, innobackupex

/mysql3606.sock \> -- defaults-file =/data/inst3606/data3606/my3606.cnf/data/bak /hotbakInnoDB Backup Utility v1.5.1-xtrabackup; copyright 2003,200 9 Innobase Oy ............ 141105 15:41:59 innobackupex: Connecting to MySQL server with DSN 'dbi: mysql :;............. innobackupex: Using mysql server version 5.6.12-loginnobackupex: Creat Ed backup directory/data/bak/hotbak/2014-11-05_15-42-02 # create a timestamp-based folder under the specified backu

Teach you to build LyncServer2013 install Office Web App Server (11)

Because Lync2013 needs to install stand-alone Office web App services for OneNote and PPT sharing, and in Lync2010, the PPT sharing feature is integrated by default in the Lync front-end server, where the Office Web Apps server begins to deployInstall the prerequisite components for the Office Web App Server first, with the following commandAdd-windowsfeature? Web-server,web-mgmt-tools,web-mgmt-console,web-webserver,web-common-http,web-default-doc,web-static-content, Web-performance,web-stat-com

Startup and shutdown of MySQL database

the following arguments:--socket=/tmp/mysql3306.sock--port=3306--pid-file=/var/lib/mysql/my3306.pid--user=mysql--server-id=3306-- Federated[[email protected] ~]# ps-ef|grep MySQLRoot 2963 2840 0 14:10 pts/0 00:00:00 grep mysql# Author:leshami# Blog: Http://blog.csdn.net/leshami#查看mysqld启动配置文件的优先级[[email protected] ~]# mysqld--verbose--help |grep-a 1 "Default Options"Default options is read from the following files in the given order:/ETC/MY.CNF/ETC/MYSQL/MY.CNF/USR/ETC/MY.CNF ~/.my.cnf#查看当前的my.

Maven Java Web project startup cannot find a solution for spring Contextloaderlistener

After uploading to a git repository with a maven-built Java Web project, when a colleague clones the project and deploys to Tomcat, the following error is reported, that is, when the Web project is launched, the. xml file is loaded, the spring listener is not found, and the console error is as follows: 1234567891011121314151617181920212223242526272829303132333435363738394041424344454647484950 十月 30, 2015 4:42:36 下午 org.apache.catali

DHCP + tftp + PXE + kickstart enables unattended Automatic System Installation

Yum has been configured in advance 1. Check whether iptableis disabled 650) This. width = 650; "src =" http://s3.51cto.com/wyfs02/M02/42/D6/wKiom1PY1JSiEN0wAAGmHS6y_ig133.jpg "Title =" 18.png" alt = "wkiom1py1jsien0waagmhs6y_ig133.jpg"/> Ii. Install the DHCP service and modify the configuration 650) This. width = 650; "src =" http://s3.51cto.com/wyfs02/M00/42/C5/wKiom1PYxdGzIxjnAAF8W4VodcU555.jpg "style ="

Couldn ' t load Libpassword One of the reasons that the class library was not found when compiling the C file into the CPU's so class library from LOADER:NDK development

Logcat output:03-03 12:42:32.665:e/androidruntime (32432): FATAL exception:main03-03 12:42:32.665:e/androidruntime (32432): Process:com.toro.passwordencode, pid:3243203-03 12:42:32.665:e/androidruntime (32432): java.lang.UnsatisfiedLinkError:Couldn ' t load Libpassword from Loader Dalvik.system.pathclassloader[dexpathlist[[zip file "/data/app/com.toro.passwordenc

About PHP using the token bucket algorithm based on Redis to realize the content of traffic control

>>/tmp/cron_add.log Perform simulated consumption PHP consume_demo.php Execution Result: [2018-02-23 11:42:57] consume token:true[2018-02-23 11:42:57] consume token:true[2018-02-23 11:42:57] consume token: True[2018-02-23 11:42:57] Consume token:true[2018-02-23 11:42:57] co

Linux tcpdump command details how to use the Linux tcpdump command

protocol information. -R -S -S lists the number of TCP associations with absolute rather than relative values. -T displays a time stamp on each column dumping data. The-TT displays an unformatted timestamp on each column of dumping data. -T -V details the instruction execution process. -VV Displays the instruction execution process in more detail. -X lists the packet data in hexadecimal codewords. -W Instance displaying TCP packet information # tcpdump Tcpdump:ver

MHA masterha_check_repl detection process, gocheck paper detection

binlog when the master database dies.F. Check whether binlog (apply_diff_relay_logs) of different slave databases can be applied)G. Check IP address switching. If there is a deployment script 4. Actual detection process[Root @ vdbsrv4 ~] # Masterha_check_repl -- conf =/etc/masterha/app1.cnfFri Apr 17 18:48:41 2015-[warning] Global configuration file/etc/masterha_default.cnf not found. Skipping.Fri Apr 17 18:48:41 2015-[info] Reading application default configuration from/etc/masterha/app1.cnf

Kali-linux Arpspoof Tools

system (192.168.6.101). The following first deceives the target system, and executes the command as follows:[emailprotected]:~# arpspoof -i eth0 -t 192.168.6.101 192.168.6.150:e5:49:eb:46:8d 0:19:21:3f:c3:e5 0806 42: arp reply 192.168.6.1 is-at 50:e5:49:eb:46:8d50:e5:49:eb:46:8d 0:19:21:3f:c3:e5 0806 42: arp reply 192.168.6.1 is-at 50:e5:49:eb:46:8d50:e5:49:eb:46:8d 0:19:21:3f:c3:e5 0806

MongoDB startup problem resolution is occurring.

Before the start of MongoDB is quite normal, do not know the start error later, the paste out query. Finally know is due to their abnormal shutdown caused by this situation.--Excerpt: MongoDB abnormal shutdown after repair recordMongod no background execution, after the terminal connection is not properly disconnected, perform the Mongod error again, as follows:[[emailprotected] mongodb]#./bin/mongod/bin/mongod--help for help and startup options Thu Nov 22:4

Linux basic permissions and attribution, additional permissions control

I. Basic authority and attribution1. Access rightsREAD: Allow viewing, displaying directory listingsWrite: Allow modification, allow new, move, delete files or subdirectories in the directoryExecutable: Allow to run programs, switch directories2. View permissions for a file# ls-l Install.log-|rw-|r--|r--1 root root 26195 Dec 10:42 Install.log①②③④⑤⑥⑦⑧⑨⑩①. File type-Representing ordinary documentsD Stands for DirectoryL Stands for Connection②. rw-: Perm

Linux compression, decompression, and archiving tools

Compression, decompression, and archiving toolsCompress/uncompress:. ZGzip/gunzip:. gzBZIP2/BUNZIP2:. bz2XZ/UNXZ:. XZZip/unzipTar, Cpio1, Gzip/gunzipgzip [OPTION] ... FILE ...-D: Uncompressed, equivalent to Gunzip-C: Outputs the result to standard output;-#:1-9, specify the compression ratio;Zcat: View text file contents without explicit expansion;[Email protected] test]# ll-hTotal 24K-rw-r--r--1 root root 18K Jul 15:42 functions-RW-------1 root root

The use of the SED tool---------Linux

Sed stream editor, line editorhow SED works650) this.width=650; "src=" Https://s3.51cto.com/wyfs02/M01/06/42/wKiom1m1D9fhB8YHAABO5xoQ2AI293.png "title=" Qq20170910181051.png "alt=" Wkiom1m1d9fhb8yhaabo5xoq2ai293.png "/>650) this.width=650; "src=" Https://s1.51cto.com/wyfs02/M01/06/42/wKiom1m1D0WT1cMGAAA4IbtEK8c252.png "style=" float : none; "title=" Qq20170910180715.png "alt=" Wkiom1m1d0wt1cmgaaa4ibtek8c2

Redis installation and master-slave Configuration

: [29028] 26 Sep 18:40:31-Accepted 10.0000150.208: 44779[29028] 26 Sep 18:40:31 * Slave ask for synchronization[29028] 26 Sep 18:40:31 * Starting BGSAVE for SYNC[29028] 26 Sep 18:40:31 * Background saving started by pid 29091[29091] 26 Sep 18:40:31 * DB saved on disk[29028] 26 Sep 18:40:31 * Background saving terminated with success[29028] 26 Sep 18:40:31 * Synchronization with slave succeeded[29028] 26 Sep 18:40:32-0 clients connected (1 slaves), 798752 bytes in use[29028] 26 Sep 18:40

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