redis transaction

Redis-load and Redis-stat are two small tools written by the Redis author Antirez, including: Redis-load is a stress test tool for Redis Redis-stat is a Redis status

Redis Summary (4) Redis persistence, redis Summary I have summarized the installation and use of Redis. Today I will talk about Redis persistence. 　　 Similar to memcached, redis is a memory database. However,

[Redis] 3. Redis cluster deployment and redis cluster deployment A Redis cluster is an assembly that provides data sharing among multiple Redis nodes.Redis clusters do not support the processing of multiple keys commands, because this requires moving data between different n

confused. This is not the same as the role of the database. So, you may see that, in fact, Codis ha, does not guarantee that the data is not lost completely, because it is asynchronous replication, so after the master hangs, if there is no synchronization to the slave on the data, at this time slave promoted to master, Data that has just been written before it can be synchronized will be lost. In Reborndb, however, we will try to support synchronous replication (syncreplication) for persistent

Data partitioningRedis clusters store data on multiple nodes, that is, different partitions are stored on different nodes, and each node can store multiple partitions. Each partition is also referred to as a "hash slot" in Redis, with a total of 16,384 partitions planned in the Redis cluster. For example: when there are 3 nodes in a cluster, Node A will contain 0-5460 partitions, Node B will contain 5461-10

Xin Xing talks about Redis transactions and Xin Xing talks about Redis transactions Redis also provides support for transactions. In Redis, we commonly use four commands: multi, exec, discard, and watch. The multi command is used to start a transaction. All the commands afte

Solution Code One: Use lock lock//static private static variables are recommended for locksPrivate ReadOnly Static Object_mylock =New Object(); /// ///transactions, multiple table modifications/// /// /// Public BOOLUpdateName (stringname) { Lock(_mylock) {using(varTran =NewTransactionScope ()) {Moduleoperate _module=Newmoduleoperate (); 1. Modify the module name _module. Updatefirstname ("module:"+name); 2. Modify Menu This. Updatefirstname ("Menu:"+name); Commit

1. Introduction Transaction characteristicsA transaction is a unit of concurrency control and is a user-defined sequence of operations. These operations are either done or not, and are an inseparable unit of work. A transaction binds a logically related set of operations so that the server maintains the integrity of the data. A

Mget/mset's inability to guarantee the atomic semantics of the original single point. Because the key that Mset participates in may not be on different machines, if you need to guarantee the original semantics, that is, either success together or fail together, this is a distributed transaction problem, for Redis, there is no Wal or roll back such a saying, So even one of the simplest two-phase commit stra

We all know that to save some hot data to the cache can greatly improve the speed, then the question is whether to use Redis good or memcached good, the following are some simple differences between them and comparison: 1. Redis not only supports the simple k/v type of data, but also supports the storage of list, set, Zset (sorted set), hash and other data structures, so that it has a wider application sce

as master serverRedis master-slave replication features1) master can be used for multiple slave "secondary servers"2) Multiple slave can be connected to the same master, and can also be linked to other slave3) Master-slave replication does not block primary, while synchronizing data, Master can continue to process client requests4) Improve the scalability of the system "principle: when a host machine, another slave immediately become a host (rely on Heartbeat)"