redis list all keys

This is the keys list of the redis official documentation. (1) set key value -- set a key to a value (2) Get key -- get the set value (3) DEL key -- delete the set key (4) expire key seconds -- set the time when the key value exists (5) expireat key timestamp -- more advanced key value retention time. (6) Keys pattern

Delete key in bulkThere is a command DEL that removes a single key in Redis, but it seems there is no instruction to delete the key in bulk, but we can do this with the Linux xargs command.REDIS-CLI Keys "*" | Xargs redis-cli del // If REDIS-CLI is not set as a system variable, you need to specify the full path of th

The Del in Redis can delete a single key, for the need to delete key in bulk we can use Linux XargsThe code is as follows:/USR/LOCAL/BIN/REDIS-CLI Keys xxxxxx | Xargs redis-cli delIf REDIS-CLI is not set as a system variable, you need to specify the full path of

Deletion policy for expired keys in Redis We have learned that Redis is a memory database, and data in Redis is stored in the memory in the form of key-value, which is maintained and managed by the Redis server, memory is precious. unwanted data or useless data that has been

We have learned that Redis is an in-memory database, where data in Redis is stored in memory in the form of Key-value, which is maintained and managed by a Redis server, where memory is precious, The unwanted data or the useless data that has been used is not allowed to exist in memory for a long time, after all, we st

-- Reprinted: I. Overview:In redis, the list type is a string linked list sorted by insertion order. Like the common linked list in the data structure, we can add new elements in the header (left) and tail (right. If the key does not exist during insertion, redis creates a n

actually hash table, but zipmap compared to the normal hash implementation can save a lot of the hash itself needs some metadata storage overhead.Although Zipmap's additions, deletions, and lookups are all O (n), there are not too many field numbers for general objects.So the use of Zipmap is also very fast, that is, add delete average or O (1).If the size of field or value exceeds a certain limit, Redis a

First, overview: In Redis, the list type is a linked list of strings sorted by insertion order. Like a regular list in a data structure, we can add new elements to their head (left) and tail (right). When inserting, if the key does not exist, Redis creates a new linked

How to obtain the total number of keys in the cluster in redis cluster 1, the total number of all records in a table similar to mysql; 2, obtain part of data by PAGE like mysql ($ offset, $ limit; 3. Obtain the Data Type of the key, such as string and hash. 1. Obtain the total number of all

Introduction to list types The list type is also a type that we use very long. For example, we send a blog, to use the blog list. If there is no list we can only traverse the key to get all articles or a part of the article, this syntax is the

In Redis, how does one store a List of Collection types through StackExchange. Redis? StackExchange, produced by StackOverFlow, is a. NET encapsulation of Redis and is used by more and more. NET developers in projects.Most developers who used ServiceStack gradually switched over Because SS is no longer open-source in i