file system cache

First, a registered GitHub accountGo to GitHub's official website, enter your username, email address and password, and click "Sign up for GitHub".Choose Free, don't ask me why, unless the rich wayward choose the paid editionVerify your email

Ubuntu12.04 (codenamed PrecisePangolin) focuses on release, stability, and quality. Ubuntu12.04 contains the latest OpenStack version codenamed Essex and a new feature named MAAS. In addition, Juju can be used to easily deploy centralized CharmStore.

Original article: What to tune in MySQL 5.6 after installationWithImprovement on a large number of default optionsMySQL 5.6 has fewer options to be optimized than earlier versions. In this article, I will describe the configuration items to be

As the company's website traffic grows, MySQL naturally becomes a bottleneck. Therefore, I have been studying MySQL optimization recently. The first step is to naturally think of MySQL system parameter optimization, as a database system for a

The number of connections that MySQL can have. When the main MySQL thread receives a lot of connection requests in a very short period of time, this works, and then the main thread takes some time (although very short) to check the connection and

Log files first recognized by mysql 1. the err log error log records all serious warnings and error messages during mysql running, as well as detailed information about each mysql server startup and shutdown. By default, the error log function is

The following article describes how to optimize the configuration of the MySQL server and how to optimize the configuration of the MySQL server, if you are interested in its practical application, you can click the following article to learn about

You can use this command to get the default buffer size of the mysqld Server:Shell> mysqld -- helpThis command generates a table with all mysqld options and configurable variables. The output includes the default value and looks like this:Possible

Configure memcache in windows. I have previously written an article titled "PHP achieves multi-server sharing SESSION data". the SESSION in this article is saved using a database tutorial. when the concurrency traffic is high, before the service, I

Introduction to MYSQLSHOWVARIABLES bitsCN.com The mysqld server maintains two variables. Global variables affect global operations on the server. Session variables affect operations related to client connection. When the server is started, all

 When developing applications-Android, one often facesthe problem of displaying some graphical content from the interne T. youshould provide image loading from the Web in a Android app, their processingand displaying with limited memory Again and

Before we introduce the disk I/O monitoring commands, we need to understand the metrics for disk I/O performance monitoring, and the performance of some aspects of the disk revealed by each indicator. Indicators for disk I/O performance monitoring

Load is an important indicator of the Linux machine, which intuitively reflects the current state of the machine. If the machine load is too high, then the operation of the machine will be difficult.Linux has a high load, mainly due to CPU use,

LoadRunner Performance Test Results Counter indicator descriptionreprinted 2015-09-23 09:57:13 Tags: loadrunner counterFor the performance test results analysis process, the face of a large number of test data, but feel not to analyze. Today we have

The example in this paper describes how Laravel uses caching cache data to alleviate the pressure of database queries. Share to everyone for your reference, as follows: Yesterday want to make their own home page cache, to achieve similar to the

How toElasticsearch provides a very simple out-of-the-box experience by default. Users can directly use full-text search, result highlighting, aggregation, and indexing functions without modifying any configuration.But to use high-performance

 Https://help.aliyun.com/knowledge_detail/41544.htmlproblem Phenomenon Cloud Server ECS Linux system is not responding. A large number of error messages similar to the following appear in the/var/log/message log: echo 0 >

block device files:a device that represents a file system cache, such as a hard drive Device Files:represents a non-cache device, such as a tape drive, mouse, and system terminal  So how do I save a data to a file system? How does it exist?

First, preface The first 4 elasticsearch usage of the API and the principle of things introduced a bit, I believe that we have a certain understanding of elasticsearch, and then we mainly from the establishment of the index to the later stage of

Kafka is a distributed publish-subscribe messaging system. It was originally developed by LinkedIn and later became part of the Apache project. Kafka is a distributed, partitioned, redundant backup of the persistent log service. It is primarily used