RDM for Mac v2021.9.227 Redis Database Management Activated Edition Download

1. Core Features Overview

Redis Desktop Manager (RDM) is a Redis database management tool with a graphical user interface (GUI), designed to simplify database access and management through an intuitive interface. Its main features include:

• Visualize keys in a tree structure.
• Support CRUD operations on keys.
• Analyze memory usage of the entire database or selected namespaces in the tree view (requires Redis server version ≥ 4.0).
• View connected clients, active pub/sub channels, and slow query logs.
• Execute custom Redis commands via the built-in command-line interface.

2. Batch Operations and Advanced Features

RDM supports various batch operations that significantly improve development and operations efficiency, suitable for the following scenarios:

1. Cross-database data copy: Supports copying data from production to development environments for debugging, or migrating projects between different cloud providers.
2. Import data from RDB files: Allows splitting data from large RDB files into multiple smaller Redis servers, or importing only specific subsets (e.g., user session data).
3. Batch set TTL (expiration time): Set time-to-live for multiple keys simultaneously.
4. Delete keys by pattern: Supports batch deletion of matching keys using glob patterns.

3. Version 2021.9.227 Updates

This version introduces several feature enhancements and bug fixes, including:

• Added support for multiple compression formats: ZSTD, Snappy, Brotli, Magento Cache/Session, and PHP gzcompress.
• Limited the maximum number of child items displayed in the tree view to better support large key spaces and improve default user experience.
• Optimized real-time data updates in the tree view.
• Enhanced compatibility and operation support for ReJSON data types.
• Fixed known bugs in the JSON formatter.

4. Software Interface Screenshots

Below are examples of the Redis Desktop Manager interface:

5. Detailed Installation Guide

Before starting the installation, ensure your Mac system version is at least macOS 10.12 or higher. It is recommended to close all running Redis server programs in advance to avoid port conflicts.

Step 1: Download and Extract

Click the download link provided on the page to get the RDM for Mac v2021.9.227 installer. The file is usually in .dmg format. Double-click the .dmg file, and the system will automatically mount and open a window containing the application icon.

Step 2: Drag and Drop Installation

Drag the “Redis Desktop Manager” icon with your mouse to the “Applications” folder on the right. This is the standard Mac software installation method; no additional confirmation is needed.

Step 3: First Launch and Security Prompt

Go to Launchpad or the Applications folder, find the RDM icon, and double-click to open it. Since it is downloaded from a non-App Store source, the system may show a prompt saying “Cannot open because the developer cannot be verified.” In this case, go to “System Preferences” > “Security & Privacy” > “General” and click the “Open Anyway” button.

Step 4: Configure Connection

After the software starts, click the “Connect to Redis Server” button in the top-left corner of the main interface (usually a green plus icon). In the dialog box that appears, enter your Redis server address (Host), port (Port, default 6379), and password (Auth, if set).

Step 5: Test Connection

After filling in the details, click the “Test Connection” button below. If the configuration is correct, the system will prompt “Connection successful.” Once confirmed, click “OK” to save the configuration. Now you can see and manage your Redis database in the server list on the left.

6. FAQ

We have compiled the following common questions and answers for issues users may encounter in practice, hoping to help you quickly resolve difficulties.

Q1: Cannot open after installation, showing “damaged”?

This is usually because macOS Gatekeeper security blocks unsigned applications. First, try allowing it in “Security & Privacy.” If it still won’t open, you can enter the command in Terminal: sudo spctl --master-disable to temporarily disable Gatekeeper (it is recommended to re-enable it after the operation).

Q2: “Connection refused” when connecting to the server?

First, check if the Redis server is running and ensure the server’s bind configuration allows remote connections. By default, Redis only listens on local 127.0.0.1. You need to modify the bind item in the redis.conf file and set a requirepass password for security.

Q3: Does RDM support Redis cluster mode?

Yes. When creating a new connection, select the connection type as “Cluster.” RDM will automatically detect node information in the cluster and display data distribution across slots in a tree structure, facilitating global management.

Q4: How to export all data?

You can use the “Cross-database data copy” feature in “Batch Operations” to copy all keys from the source database to the target database. Alternatively, you can use Redis’s built-in BGSAVE command to generate an RDB file, then use RDM’s “Import from RDB file” feature.

Q5: What to do if the tree view is incomplete?

In v2021.9.227, we optimized the maximum number of child items displayed. If you find some keys are not showing, try adjusting the “Tree view limit” value in “Preferences,” or use the search function to directly locate key names.

Q6: Why is my JSON data displayed as garbled text?

Please check if your Redis server has the ReJSON module installed. RDM has special display optimization for ReJSON data types. If the data is a regular string, ensure the correct encoding format (e.g., UTF-8) is selected in the value viewer.

Q7: How to batch delete keys with a specific prefix?

In RDM, you can right-click a database or namespace, select “Batch Operations” > “Delete keys by pattern.” Enter a wildcard pattern in the input box, such as user:*. The system will list all matching keys, and you can delete them all at once after confirmation.

Q8: What to do if the software lags or uses high memory?

When connected to a large Redis instance with millions of keys, RDM may consume more resources initializing the tree view. It is recommended to enable the “Limit key scanning” feature in connection settings, or use namespaces (database indexes) to split data management.

7. Common Mac Shortcuts Table

To improve your operational efficiency, we have compiled common shortcuts for RDM on Mac. Mastering these shortcuts will make your database tasks more efficient.

8. Tips and Practical Examples

Theory is no substitute for practice. Here are several high-frequency usage scenarios for RDM to help you get started quickly.

Tip 1: Efficient Key Location

When your Redis stores thousands of keys, manual scrolling is very inefficient. Make good use of the Cmd + F shortcut. Enter a key name or use wildcards (e.g., session:*) in the search box, and RDM will filter matching keys in real time; click to view details.

Practical Example: Clean Up Expired Session Data

Suppose your application stores a large amount of user session data in Redis with the key pattern session:uuid. To free memory, you need to periodically clean up expired sessions. Open RDM and connect to the target server. In the tree view, right-click the database and select “Batch Operations” > “Delete keys by pattern.” Enter the pattern session:*, and RDM will scan all matching keys. You can combine the “Batch set TTL” feature to first set a short expiration time for these keys and let Redis automatically clean them up, or directly confirm deletion.