What is Redis monitoring?

What is Redis monitoring?

0. MONITOR is a debugging command that streams back every command processed by the Redis server. It can help in understanding what is happening to the database. This command can both be used via redis-cli and via telnet .

How can I check Redis data?

A Redis server has 16 databases by default. You can check the actual number by running redis-cli config get databases. In interactive mode, the database number is displayed in the prompt within square braces. For example, 127.0. 0.1:6379[13] shows that the 13th database is in use.

Can Redis be used as a database?

Redis is an open source (BSD licensed), in-memory data structure store, used as a database, cache, and message broker. Redis provides data structures such as strings, hashes, lists, sets, sorted sets with range queries, bitmaps, hyperloglogs, geospatial indexes, and streams.

How does Redis measure performance?

A database server’s overall performance and efficiency is usually determined by its CPU usage. Applications Manager provides detailed graphs on the CPU usage of your Redis database, including the percent of CPU consumed by system processes and user processes.

What is Redis used for?

Redis offers purpose-built in-memory data structures and operators to manage real-time geospatial data at scale and speed. Commands such as GEOADD, GEODIST, GEORADIUS, and GEORADIUSBYMEMBER to store, process, and analyze geospatial data in real-time make geospatial easy and fast with Redis.

How do I see Redis logs?

To configure the Redis log file, locate your local redis. conf configuration file in the database directory. By default, Redis logs are stored in /var/log/redis/redis-server. log.

How do I select a database in redis?

Redis databases are numbered from 0 to 15 and, by default, you connect to database 0 when you connect to your Redis instance. However, you can change the database you’re using with the select command after you connect: select 15.

What are keys in redis?

Redis Keys are Ideal for Keeping Track of Lots of Strings. For the (simple string) key-value data type Redis allows you to set, get, delete, and increment arbitrary string pairs. You can only have 1 value at a time for each key (i.e. set is destructive assignment). You can also delete keys.

What is Redis not good for?

Redis has very simple search capabilities, which means its not suitable for all use cases. Redis doesn’t have good native support for storing data in object form and many libraries built over it return data as a string, meaning you need build your own serialization layer over it.

How efficient is Redis?

When an ethernet network is used to access Redis, aggregating commands using pipelining is especially efficient when the size of the data is kept under the ethernet packet size (about 1500 bytes). Actually, processing 10 bytes, 100 bytes, or 1000 bytes queries almost result in the same throughput. See the graph below.

What database does Redis use?

1.1. 1 Redis compared to other databases and software

Name	Type
Redis	In-memory non-relational database
memcached	In-memory key-value cache
MySQL	Relational database
PostgreSQL	Relational database