Foreword

Distributed caching is a key component in a distributed system, mainly to address the high concurrency, large data scenario, data access performance issues hotspot, providing high-performance data for quick access.

Use common caching scenarios are: the project part of the data accessed more frequently, resulting in pressure on the downstream service DB (eg MySQL), this time we can use the cache to improve efficiency.

There are many components of the cache, the well-known Redis, Tair, MemCache and so on. Today we focus on content knowledge database Redis cache related. Today this share 45 frequently asked interview questions and Redis Redis surface finishing summary free knowledge for everyone to share!

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Redis frequently asked interview questions

What is Redis?
Redis memcached What are the advantages compared to?
What kinds of support Redis data types?
What Redis major consuming physical resources?
What Redis stands for?
What kinds of strategies Redis data out of there?
Redis official Why not offer Windows version?
A value of type string can store the maximum capacity is how much?
Why Redis need to put all the data into memory?
Redis cluster program should how to do? What are the solutions?
Redis clustering solutions under what circumstances would cause the entire cluster is unavailable?
There 2000w MySQL data, only the data stored in redis 20w, how to ensure that the data is hot data in redis?
Redis supports Java client what are? Official recommended to use which?
Redis and Redisson What is the relationship?
Jedis Redisson contrast with what advantages and disadvantages?
How Redis set a password and verify password?
Talk about the concept Redis hash slot?
Redis cluster master is how to copy from a model?
Redis cluster will write to lose it? why?
How to between Redis cluster is replicated?
The maximum number of cluster nodes Redis is how much?
How to select a database Redis cluster?
How to test the connectivity of Redis?
Redis what's the use in the pipeline?
How to understand Redis affairs?
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Redis senior face questions

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Redis study notes organize knowledge (documentation generated free share offer)

About redis
Why redis / Why use cache
Why use redis without map / guava as cache?
The difference between memcached and redis
redis common data structures and the use of scenario analysis
redis set an expiration time
redis memory elimination mechanism
redis persistence mechanism
redis Affairs
Redis common exceptions and solutions (buffer penetration, avalanche cache, cache warming, cache downgrade)
Common scenarios in distributed environments
Redis trunked mode (master-slave mode, Sentinel mode, the Cluster trunked mode)
How to solve the problem of concurrent Key Redis of competition
How to ensure data consistency and database cache dual-write?
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