Valkey Management


Valkey is a high-performance, non-relational key-value database. It stores data in memory, which enables very fast request processing. 

Unlike relational database management systems, Valkey doesn't have traditional databases and tables—data is organized into keyspaces, and values can take different structures and types, including strings, lists, sets, and hash tables.

Valkey is an open-source fork of Redis. It maintains compatibility with the Redis protocol, commands, and client libraries, so you can use familiar tools, SDKs, and drivers to connect to a cluster. In most cases, applications that worked with Redis can work with Valkey without any code changes.

Valkey is commonly used for:

  • Data caching
  • Session storage
  • Queue management
  • Messaging between services
  • Real-time data processing

When creating a cluster, you can choose a Valkey version: 7, 8.1, or 9.1.

Users and Privileges
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In your Hostman dashboard, you can manage Valkey users and their privileges.

Creating Users
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  1. Go to the Databases section and click on the cluster.
  2. Open the Users tab and click Add.
  3. Set the username and password:
    • Username: 3–64 characters. Letters, numbers, and special characters are allowed.
    • Password: 8–30 characters. Letters, numbers, and special characters are allowed.
  4. (Optional) Configure the user’s privileges. You can also leave the default parameters and change them later at any time.
  5. Click Create.

Modifying Privileges
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To update the privileges of an existing user:

  1. Go to the Databases section and click on the cluster.
  2. Open the Users tab.
  3. Click the three dots next to the user.
  4. Select Privileges.
  5. Choose the required privileges. You can grant access to a specific database or grant the same privileges for all databases by enabling Identical for all databases in the top right.

Available Privileges
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Privilege

Description

READ

Read data from the database.

WRITE

Write and modify data.

ADMIN

Run administrative commands (e.g., manage configuration, flush database).

BITMAP

Work with bit arrays.

BLOCKING

Use blocking commands (e.g., BLPOP, BRPOP).

CONNECTION

Manage connections and connection settings.

DANGEROUS

Access potentially dangerous commands (e.g., FLUSHALL, MIGRATE).

GEO

Work with geospatial data (e.g., GEOADD, GEORADIUS).

HASH

Work with hash tables.

HYPERLOGLOG

Work with the HyperLogLog data type.

FAST

Use low-latency commands.

KEYSPACE

Get key lists and key metadata.

LIST

Work with lists.

PUBSUB

Use the publish/subscribe mechanism (PUBLISH, SUBSCRIBE).

SCRIPTING

Execute Lua scripts in Valkey.

SET

Work with sets.

SORTEDSET

Work with sorted sets.

SLOW

Use commands that may take longer to execute.

STREAM

Work with data streams (XADD, XREAD).

STRING

Work with strings.

TRANSACTION

Use transactions (MULTI, EXEC).

Changing User Password
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You can change the user password:

  1. Go to the Database section and click on the cluster.
  2. Go to the Users tab.
  3. Click the three dots next to the user.
  4. Select Change password.
  5. Enter a new value and save changes.

Database Parameters
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You can change database settings to optimize its performance. 

By default, the database is created with the parameters that are suitable for most tasks and will ensure the performance of the selected configuration. However, if your project requires specific settings, you can change them as you wish. 

Be careful and change parameters only if you are sure of their purpose. Incorrect configuration can negatively affect the operation of the database and its performance.

Changing Parameters
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  1. Go to the Databases section and click on the cluster.
  2. Go to the Configuration tab.
  3. Click Modify parameters next to Database parameters.
  4. Adjust the parameters. To read more about each parameter, click Open description next to it.
  5. Click Apply at the bottom of the page.

Parameters List
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Parameter

Valid Values

Default Value

client-output-buffer-limit normal

0 0 0

client-output-buffer-limit pubsub

33554432 8388608 60

maxmemory-policy

allkeys-lru

slowlog-log-slower-than

0–600000000

10000

slowlog-max-len

0–4294967296

128

timeout

0–3600000000

0

databases

0–2147483647

16

save

900 1

appendonly

On/Off

On

appendfsync

everysec

tcp-keepalive

0–3600

300

notify-keyspace-events

Connecting to the Database
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To work with your Valkey cluster, install the redis-cli or valkey-cli utility. Valkey is compatible with Redis, so you can connect using either standard Redis clients and commands or Valkey tools.

Installing redis-cli
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The redis-cli utility is included with Redis and can be installed via package managers:

  • Ubuntu/Debian
sudo apt install redis-tools
  • macOS
brew install redis
  • Arch Linux
sudo pacman -S redis
  • CentOS/RHEL
sudo yum install redis

After installation, check the client version:

redis-cli -v

Installing valkey-cli
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To use valkey-cli, install the Valkey package. This will also install the command-line utility:

  • Ubuntu/Debian
sudo apt install valkey
  • macOS
brew install valkey
  • Arch Linux
sudo pacman -Syu valkey
  • CentOS/RHEL
sudo yum install epel-release
sudo yum install valkey

Connection Command
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There are two ways to connect to a Valkey cluster:

  • via public IP;
  • via private IP.

You can copy the connection command from:

  • the Dashboard tab:

C5808e03 025d 4c98 B004 9d8d5be1935a

  • the Connection tab:

5b57323e 447a 45a3 A3c1 09e1d9bd6962

Creating a Dump
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Valkey is compatible with Redis, so you can use most existing tools from the Redis ecosystem for backup and migration.

To export Valkey data, use the redis-dump-go utility, available for different architectures. Download the binary for your architecture from the official repository.

To create a dump, run:

REDISDUMPGO_AUTH='password' ./redis-dump-go -host <cluster-ip> -port 6379 -user default > redis-dump.txt

Here, REDISDUMPGO_AUTH is the password for cluster access.

Importing a Dump
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To import data, use redis-cli or valkey-cli in --pipe mode, which supports loading large datasets:

redis-cli -h <cluster-ip> -p 6379 --user default --pass 'password' --pipe < redis-dump.txt

Or with valkey-cli:

valkey-cli -h IP-адрес-кластера -p 6379 --user default --pass 'пароль' --pipe < redis-dump.txt