Tags: name startup warning Clear int IKE copyright RPO physical MemoryRecently found a customer development company to deploy the production MySQL database innodb_buffer_pool_size is the default value, physical memory is 32G, the results are obvious, the performance problem is very large.It is advisable to set the 50%~80% of Innodb_buffer_pool_size as physical memory.ERROR 1206 (HY000): The total number of locks exceeds the lock table size-bash-4.1$./
Tags: dia mongodb ... Fully match line RPO knowledge NoneFirst, the latitude and longitude of the representation wayThe storage of latitude and longitude in MongoDB has its own set of specifications (mainly for the purpose of establishing a geospatial index on that field). There are two ways, namely Legacy coordinate Pairs (the word does not know how to translate ...). ) and GeoJSON.
Legacy coordinate Pairs
Legacy coordinate Pairs The
consistent data and log files. To make sure that the data file contains only the modifications that have been made by the transaction that you have committed, the restore operation will re-execute the food in the log that has not yet been applied to the data file.why to back upDisaster recovery: A hardware failure, a casual bug that causes data corruption, or the server and its data are not accessible or unusable for some reason. People change their minds: Delete certain data and want to recove
Tags: name ACL listen IAT title RPO host Evel Chkconfig1. Install with YumOpen the command line interface with root privileges and execute the following Yum commands: Yum install MySQL
yuminstallmysql mysql-server mysql-devel -y
In the final hint complete! Indicates that the installation was successful.2. Verify that the MySQL server is startedWhen the installation is complete, check to see if the MYSQLD service is generat
, how to solve them, and what factors will affect their performance; 16. If you want to explain the memory bottleneck of a database server, which indicators and which methods are the basis of your judgment; 17. Database detection corruption, talk about your possible ways and steps to repair; 18. One day you receive a normal operation of the database alarm, found that many indicators have risen more than one times, how you quickly analyze and locate possible problems; 19. What typical SQL perform
Tags: Adl method PCR root User NSS CHM RPO http timeReference: http://blog.csdn.net/mycwq/article/details/24488691
Installation of Cmake,mysql 5.5 to be compiled with CMake
In the newly installed CentOS 5.7 system, the first installation of Nginx (with Nginx must rely on: gzip module needs zlib library; Rewrite module requires Pcre library; The SSL feature requires the OpenSSL library), resulting in the installation cmake process. Boo
environment, the quality of management change will be verified and testedThe change is isolated, atomic, reversible.
second-lowest error (Inappropriate maintenance plan )Proper preventive Maintenance (PM) can help you:Catch a problem before it happensCan determine the direction of optimizationUsers performing resource-intensive operations on the system will reducePreventive maintenance should be included in SQL ServerDatabase consistency check and DBCC CHECKIDENTUse the CHECK option when
addition to supporting applications for InnoDB, MySQL meta-mode and MyISAM backups of any other tables are supported, but tables need to be locked. 5.* Point-in-time recovery Technology (PITR): It is performed by applying MySQL binaries to a recovered snapshot. * Note: The system administrator uses the operating system command to delete, MySQL binary log file is a possible disaster practice, when deleting binary log files, be sure to use the appropriate MySQL command.* Disaster Recovery---> Dr*
Tags: ati status Post blog LSP dap NEC class RPO[emailprotected]:~$ lspci | grep -i net00:19.0 Ethernet controller: Intel Corporation Ethernet Connection I218-V (rev 04)04:00.0 Network controller: Realtek Semiconductor Co., Ltd. RTL8723BE PCIe Wireless Network AdapterDescription: WiFi connection is not stable, sometimes can be normal internet sometimes do not, can not be turned off after the Internet wifi in open has been in the search state, after r
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