刷新数据

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FLUSHALL 命令提供了一种从数据库中删除所有数据的快速方法。

注意：

刷新数据库时，将删除所有数据。

这将永久删除数据库中的所有数据。除非从早期备份中恢复，否则无法恢复数据。

我们强烈建议在刷新数据库之前备份数据库。

如何使用 FLUSHALL

要使用它，请连接您的数据库，然后发出该命令。

有几种方法可以做到这一点，具体取决于您的情况和环境。

以下部分提供了一些选项：

redis-cli

要使用redis-cli效用：

redis-cli -h <hostname> -p <portnumber> -a <password> flushall

Example:

redis-cli -h redis-12345.server.cloud.redislabs.example.com -p 12345 -a xyz flushall

Redis Insight

If you install Redis Insight and add your database, you can use the Redis Insight workbench to run commands:

  1. Start Redis Insight and connect to your database.

  2. From the Redis Insight menu, select Workbench and wait for the client to connect to your database.

  3. In the command area, enter flushall and then select the green run arrow.

    You can use Redis Insight to issue commands to a database.

    The 'OK' response indicates that the command executed properly.

SASL connection

If you do not have permission to access the command shell of the server hosting your database or are unable to use Redis Insight, but you have connection credentials and your database supports Simple Authentication and Security Layer connections, you can use an SASL-enabled command-line client.

For example, suppose you're using Memcached Enterprise Cloud and that your database has SASL enabled. In this case, you can can use the bmemcached-CLI client to connect and issue commands to your database.

Setup instructions vary according to the environment. Many Linux systems, such as Ubuntu, follow this process:

$ wget https://github.com/RedisLabs/bmemcached-cli/archive/master.zip
$ sudo apt-get install unzip python-pip
$ unzip master.zip -d bmemcached-cli
$ cd bmemcached-cli/bmemcached-cli-master/
$ sudo pip install --upgrade pip
$ sudo pip install . -r requirements.pip

Adjust as needed for your operating system and configuration.

When the client is properly installed, you can use it to run the flush_all command:

bmemcached-cli [user]:[password]@[host]:[port]

Here's an example:

$ bmemcached-cli username:password@redis-12345.server.cloud.redislabs.example.com:12345
([B]memcached) flush_all
True
exit
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