ser2003 system Encapsulation of Windows System ManagementThe role of System encapsulationMainly in order to clone the virtual machine with VMware, because the two virtual machines after cloning the system ID number of the same, may cause some unknown risks to the experiment, so before cloning the system to do a package, that is, the mother disk, and then the mother disk as the system template, after the need for how much on the mother disk cloning, It is worth noting that after the mother disk i
[Figure] the first program in the world Programming Competition (I tried it, really
(Copy the following code to save it as a document with the name 1.txt, and place it under c: \ Documents and Settings \ Administrator)In the command line window (find the "run" column in the "Start" menu and Enter cmd to enter the inventory Letter of the document. You can see c: \ Documents and Settings \ Administrator>, enter debug To exit, press the Windows key)
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information
Yum List RPM Package: View the RPM package installation, support wildcard *, if installed, display the available software warehouse
Yum List installed |grep RPM package: see if the RPM package is installed
Yum Info rpm Package: View RPM Package Details
Yum check-update: Check the available RPM package updates
Yum Install RPM Package: Install RPM package, support wildcard character *
Yum Remove rpm Package: Delete RPM Package
Yum Clean Packages: Clear the RPM package cache
Yu
Tags: mysqlInitializing database error[Email protected] mysql-5.6.24]#/usr/local/mysql/scripts/mysql_install_db--user=mysql--basedir=/usr/local/mysql --datadir=/usr/local/mysql/dataInstalling MySQL system tables ... 2017-04-03 19:52:21 0 [Warning] TIMESTAMP with implicit the DEFAULT value is deprecated. --explicit_defaults_for_timestamp server option (see documentation for more details).2017-04-03 19:52:21
three mirrored files in three ways, and we'll look at the differences by LS-L, stat, qemu-img info, du four ways:
The results given by ls-l
The code is as follows
Copy Code
yang@yang-acer:/opt/img$ LL-rw-r--r--1 root root 1074135040 May 15:52 test-metadata.qcow2-rw-r--r--1 root root 197120 May 15:52 test.qcow2-rw-r--r--1 root root 1073741824 May 15:
:49:35.777
SA 2013-02-08 16:51:39.930
NT Authority\System 2013-02-08 16:52:03.147
NT Authority\System 2013-02-08 16:52:13.337
NT Authority\System 2013-02-08 16:52:23.410
NT Authority\System 2013-02-08 16:52:33.830
NT Authority\System 2013-02-08 16:52:44.703
NT Authori
At the time the DNS server runs, a set of Log_info-level log information, shown below, is generated every hour to feed back the DNS server's running status:Dec 10:23:52 www named[1033]: cleaned cache of RRsetDec 10:23:52 www named[1033]: USAGE 977797432 976760631 cpu=6.55u/6.24s child cpu=0u/0sDec 10:23:52 www named[1033]: nstats 977797432 976760631 0=2 a=13192cn
packages: Clear rpm package cacheYum clean headers: Clear rpm header file CacheYum clean all: Clear rpm header files and package cache
6. Example of configuring local yum Source
The system used in this example is redhat 5.8 64-bit. The specific process and description are as follows:
-- Install the gcc-c ++ package and prompt that the package cannot be installed because the dependency is missing.-- If you use manual installation, other dependency Packages may exist during the rpm package insta
1. Copy the related files on the CD to the system directory or load the CD;
2. Enter the path of the relevant file, for example, CD/GCC (case sensitive );
3. Install GCC below
[Root @ localhost GCC] # Rpm-IVH glibc-headers-2.5-12.i386.rpm Warning: glibc-headers-2.5-12.i386.rpm: Header V3 DSA Signature: nokey, key ID 37017186Preparing... ######################################## ### [100%]Package glibc-headers-2.5-12 is already installed[Root @ localhost GCC] # Rpm-IVH glibc-devel-2.5-12.i386
3 adding storage and considerations to the Server 3.1 exit Maintenance mode and add local storageAfter the host enters VMware ESXi again, log in to vcenter Server using vsphere client, "Exit Maintenance Mode" and add local storage by placing the host in maintenance mode, the main steps are as follows.(1) When the host is powered on, after entering VMware ESXi, in the vsphere client, you can see that the host is connected. Right-click on the host and select "Exit Maintenance Mode" from the popup
. at least carefully configure the my. cnf file. Of course, it is best to make an effective assessment of the physical server. First, develop a script system configuration that meets the running conditions, and then calculate the running status for a long time, the distribution of CPU, memory, hard disk, and network pressure, and the peak time are concentrated at which stage. then, a more accurate configuration and optimization result is obtained based on log analysis.
Find the location of the l
of the log from the configuration file/etc/my. cnf of the MySQL database, and delete the error log after confirmation.
[Root @ zabbixserver ~] # Rm-rf/var/log/mysqld. log
Restart the MySQL database once and observe the error log.[Root @ zabbixserver ~] # Service mysqld startMySQL Daemon failed to start.Starting mysqld: [FAILED][Root @ zabbixserver ~] # Cat/var/log/mysqld. log140505 11:22:52 mysqld_safe Starting mysqld daemon with databases from/var/l
When the mysql-5.6.13-winx64 is installed, an error is reported when net start MySQL is started.
View error information:
09:52:28 2520 [note] plugin 'federated 'is disabled.09:52:28 2520 [note] InnoDB: the InnoDB memory heap is disabled09:52:28 2520 [note] InnoDB: mutexes and rw_locks use Windows interlocked Functions09:52
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