redis sync with database

Redis is a memory database that supports richer value types than memcache, and Sina Weibo uses Redis for caching. Redis's Source code installation Copy Code code as follows: wget http://download.redis.io/redis-stable.tar.gz TAR-ZXVF redis-stable.tar.gz CD

Php implements the migration of the specified database number of the redis database, redis database. Php implements the migration of the specified database number of the redis

Redis database of NoSQL Database: Redis introduction and installation and deployment, nosqlredisZookeeper NoSQL (NoSQL = Not Only SQL) refers to non-relational databases. With the rise of Internet Web websites, traditional relational databases are dealing with Web websites, especially ultra-large-scale and high-concurr

Database Synchronization Overview Overview Sync Framework supports synchronization between databases. It provides an intuitive and flexible API that allows you to generate applications for offline and collaborative solutions. With this API, you can use all or part of the provided components to complete synchronization based on the application architecture and requirements.

PHP database operation 3: redis Usage Analysis, php database redis usage This article describes how to operate redis in a PHP database. We will share this with you for your reference. The details are as follows: Although memcache

Tags: keyword--synchronous loading targe out technology OSS based on1. The Redis recovery mechanism If only AOF is configured, the AOF file recovery data is loaded when the reboot is restarted; If both RDB and AOF are configured, the boot is only loaded with AOF file recovery data; If only the RDB is configured, startup is the load dump file to recover the data. 2. Recovering data from AoF1 Note the following configurationyesdir

; hmset {ip}:4 city P4 min 301 Max 400OkSet up sorted set (Member-score)127.0.0.1:6379> Zadd {IP}:END.ASC 100 1 200 2 300 3 400 4(integer) 4127.0.0.1:6379> Zrange {IP}:END.ASC 0-11) "1"2) "2"3) "3"4) "4"Query the corresponding interval (score)127.0.0.1:6379> Zrangebyscore {ip}:end.asc +inf LIMIT 0 11) "1"127.0.0.1:6379> Zrangebyscore {IP}:END.ASC 123 +inf LIMIT 0 11) "2"127.0.0.1:6379> Zrangebyscore {ip}:end.asc +inf LIMIT 0 11) "1"Explain:Zrangebyscore {IP}:END.ASC +inf LIMIT 0 1Represents the

Redis is an open source, support network, memory based, key value pair storage database. The main difference from other non relational databases is that the types of values in Redis are not limited to strings (Strings), but also the following abstract data types: (list) Lists, (set) Sets, (ordered set) Sorted Sets, (hash) hashes.

disk corruption, resulting in data loss, REDIS provides replication capabilities to automatically synchronize data from one primary database to the database to prevent data loss.Master-Slave principle:1. After starting the database, send the SYNC command to the primary data

provides replication capabilities to automatically synchronize data from one primary database to the database to prevent data loss.Master-Slave principle:1. After starting the database, send the SYNC command to the primary database2. After the master database receives the

Implementation of Redis multi-host database and redis Database 1. Copy In Redis, You can execute the SLAVEOF command or set the slaveof option to let one server copy another server. We call the copied server as the master server ), the server that copies the master server is

serverPconnect: Long ConnectionAUTH: Permission ValidationSelect: Choose DBClose: Closing the connectionSetOption: Set client optionsGetOption: Get Client optionsping:ping Redis ServerEcho: Output string Note that if you operate redis frequently, and the connect and close will be very expensive, it is recommended to use Pconnect to establish a long connection.b) string read and write functionAppend: Append

PHP implements a Redis database to specify the library number migration method, Redis database The example of this paper describes the implementation of the Redis database to specify the library number migration method, share to

Set Synchronization Before you can use Sync Framework to synchronize databases, You need to configure it through a process called provisioning. The required setting types vary depending on the database type. This article provides background information, operation steps, and complete code examples for setting SQL Server and SQL Server Compact databases.Provision and Deprovision) The first step to configure t

The 'Log file sync' wait event in the RAC database is more complex than the 'Log file sync' wait event in the Standalone Database, mainly because the RAC database needs to synchronize the SCN to all instances. The 'Log file sync'