I analyzed the redis source code for nearly a month, and reached the core, closest to the beginning of the system. I named it the main directory, there are two important files, redis-CLI and redis files, one representing the client's execution file and the other representing the server's files, these two are also the most core modules of the entire system, so I w
Analysis of the Redis source code for nearly 1 months, but also to the most core, closest to the beginning of the system, I named him the main directory, which included 2 important documents, REDIS-CLI and Redis files, 1 represents the client's execution file, 1 represents the service-side file, these 2 are also the system's most core modules, so I put him down t
Tags: nosql database memory database redis structureAfter finishing the subsequent content of the command line client today, the overall feeling is that there are two things to convert, config and mode. Why do I say this? Let's continue to look at it. The configuration struct in the client and the configuration struct we learned earlier do not refer to the sa
Today after learning the end of the command line client, the overall feeling is around 2 things turn, config and mode. Why do I say that, please continue to look down, the configuration structure in the client and the configuration structure that we have learned before, not the same concept, the structure in the CLI except the basic Ip,port port number, and the configuration of various mode.
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This period of time looked at the relevant content about Redis, and I didn't say much about Redis installation and general startup under Windows. You can refer to other blog http://www.cnblogs.com/edisonchou/p/3821228.html. I followed this blog to add the Windows service that started Redis, but when I started the service, I got an error: 1053: The service did not
Redis Research (19th)-command attributes, redis research command attributes
Different Redis commands have different attributes, such as whether it is a read-only command or an administrator co
SummaryThis article is mainly about the use of Redis Scan command to meet some of the problems summarized, the scan command itself is not a problem, mainly spring-data-redis problem.DemandYou need to traverse the key in Redis to find all keys that match some pattern. The fir
The Redis key (Key) command command describes the Redis DEL command, which is used to delete key in key presence. The Redis Dump command serializes the given key and returns the seriali
Redis Command Execution Process, redis command process
This problem is simple and simple. The client sends a command request, the server reads the command request, and then the command
the Processmultibulkbuffer () function to handle. All we have to do is look at the Processmultibulkbuffer () function, which is if the Redis protocol command is processed into the parameter list of the object. The source code is as follows:
Convert the contents of the protocol in the client's querybuf to the object in the client's argument list int processmultibulkbuffer (client *c) {char *newline = NULL;
.
TYPEKey
O (1)
Gets the type of the key associated value specified in the parameter. This command is returned in string format.
The returned string is string, list, set, hash, and zset. If the key does not exist, none is returned.
SORTKey [BY pattern] [LIMIT offset count] [GET pattern [GET pattern...] [ASC | DESC] [ALPHA] [STORE destination]
O (N + M * log (M ))
This command
executes the command executes a slient dictionary order (lexicographical sorting) before it is returned to Lua. For example, because Redis's Set holds unordered elements, the smembers is executed directly in the Redis command-line client, and the returned elements are unordered, but if Redis.call ("Smembers", Keys[1])
Redis command details, Redis command details1. set setnx setexset associates the value of the string value with the key. If the key already exists, it overwrites the original one. If it does not exist, it is created.
Setnx sets the key value as value. If the key does not exist, the setting fails if the key already exis
Installation
RabbitMQ depends on Erlang. You need to install Erlang first. Erlang. Download Erlang and install it by default.
Download RabbitMQ server.download rabbitmq-server.exe and install it by default.
The installation path is C: \ Program Files \ RabbitMQ Server \ rabbitmq_server-3.6.6 \ sbin
Check whether rabbitMQ is running normally. Open the command line interface to install the directory. E
command-line editing:Cursor Jump:CTRL + A: Skip to the beginning of the commandCtrl+e: Jump to the end of the command lineCtrl+u: Delete the cursor to the beginning of the command lineCTRL+K: Delete the cursor to the end of the command lineCtrl+l: Clear ScreenCtrl+d: Delete
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