read buffer

1 : Using initialization parametersUse the initialization parameter db_block_checksum\db_block_checking to set the physical and logical consistency checks for a database block. Db_block_checksum: Physical consistency check, enabled by default. The

Max_connections MySQL maximum number of connections, if the server's concurrent connection request volume is large, it is recommended to increase the number of concurrent connections, of course, this is based on the machine can support the case,

Configuration file Path/etc/my.cnfCore Configuration# The MySQL server[Mysqld]Port = 3306 Listening portsSocket = socket for/tmp/mysql.sock monitoringSkip-locking Skip LockKey_buffer_size = 256M Index block buffer sizeMax_allowed_packet = 1M Maximum

Content Summary:One. PHP Configuration Cp/etc/php.ini/usr/local/php/etc/php.ini 1. Configure Disable_functionDisable_functions = Eval,assert,popen,passthru,escapeshellarg,escapeshellcmd,passthru,exec,system,chroot,scandir ,

[Client]Port = 3306Socket =/tmp/mysql.sock[Mysqld]Port = 3306Socket =/tmp/mysql.sockBasedir =/usr/local/mysqlDataDir =/data/mysqlPid-file =/data/mysql/mysql.piduser = MySQLBind-address = 0.0.0.0Server-id = 1 #表示是本机的序号为1, which is generally the

Content Summary:One. PHP Configuration1. Configure Disable_functionDisable_functions = Eval,assert,popen,passthru,escapeshellarg,escapeshellcmd,passthru,exec,system,chroot,scandir ,

The following is a list of major variables that have a large impact on performance optimization, which are divided into connection request variables and buffer variables.1. Connect the requested variable:1) max_connectionsThe maximum number of

[Client]Port = 3306Socket =/tmp/mysql.sock[Mysqld]Port = 3306Socket =/tmp/mysql.sockBasedir =/usr/local/mysqlDataDir =/data/mysqlPid-file =/data/mysql/mysql.piduser = MySQLBind-address = 0.0.0.0Server-id = 1 #表示是本机的序号为1, which is generally the

This article mainly introduces the MySQL configuration file my.cnf parameter optimization and Chinese explanation, very detailed in Chinese annotated the role of each parameter and recommended values, the need for friends can refer to the

[Client]Port = 3306Socket =/tmp/mysql.sock[Mysqld]Port = 3306Socket =/tmp/mysql.sockBasedir =/usr/local/mysqlDataDir =/data/mysqlPid-file =/data/mysql/mysql.piduser = MySQLBind-address = 0.0.0.0Server-id = 1 #表示是本机的序号为1, which is generally the

Package fileInputStream; import java. io. file; import java. io. fileInputStream; import java. io. fileNotFoundException; import java. io. fileOutputStream; import java. io. IOException; import java. io. inputStream; import java. io. outputStream;

Android Development Series (12): Get images on the network The process of obtaining a network slice: Get the image Url-> connect to the image object through the Url-> write the binary data of the image to the memory-> return the data in the memory->

TCP is suitable for transmitting custom original byte streams, such as transmitting an object or structure serialized as a byte stream. The sender sends the data according to the agreed custom message structure, the receiver decodes messages

Android Development Series (12): Get images on the network, The process of obtaining a network slice: Get the image Url-> connect to the image object through the Url-> write the binary data of the image to the memory-> return the data in the memory->

Read and Write files in java // Byte stream import java. io. *; public class testchaer {public static void main (String args []) {FileReader fr = null; FileWriter fw = null; try {fr = new FileReader ("C:

Java's IO class operations mainly include the following categories1, the use of the file class.2, byte operation flow: OutputStream, InputStream3, character operation Flow: Reader, Writer4. Serialization of objects: SerializableInputStreamThe

1. Source We need to track the Nativie Implementation of FileInputStream's Read and start to take a detour. The implementation of FileInputStream in the Java project is different from that in the Android project. In addition, the analysis in

Java compressed file tool class ZipUtil usage code example, tool class ziputil This example uses the Java Zip input/output stream to compress and decompress files. The first part of the code is used to obtain the file path and change the compressed

  Add the network access permission to the configuration file   Using the HttpURLConnection object, we can obtain webpage data from the network. URL url = newURL ("http://www.sohu.com "); HttpURLConnection conn = (HttpURLConnection) url.

Today, we will record data storage's part2 and discuss the following topics about File and SQLite. We know that before the emergence of a relational database, everyone is used to using files to store data. Later, there was a database that was able