刷新数据库数据

要在不删除数据库的情况下删除数据库中的数据，您可以使用 Redis CLI 将其从数据库中刷新。您还可以使用 Redis CLI、管理控制台和 Redis 软件 REST API 从主动-主动数据库刷新数据。

Redis 企业软件

要删除数据库中的数据而不删除数据库配置， 您可以从数据库中刷新数据。

您可以使用集群管理器 UI 从主动-主动数据库中刷新数据。

警告：
flush 命令将删除数据库中的所有内存和持久性数据。 我们建议您在刷新数据之前备份数据库。

从数据库刷新数据

在命令行中，您可以使用 redis-cli 命令或您最喜欢的 Redis 客户端刷新数据库。

要使用 redis-cli 从数据库刷新数据，请运行：

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

Example:

redis-cli -h redis-12345.cluster.local -p 9443 -a xyz flushall
Note:
Port 9443 is the default port configuration.

Flush data from an Active-Active database

When you flush an Active-Active database (formerly known as CRDB), all of the replicas flush their data at the same time.

To flush data from an Active-Active database, use one of the following methods:

  • Cluster Manager UI

    1. On the Databases screen, select the database from the list, then click Configuration.

    2. Click Toggle actions button to open a list of additional actions.

    3. Select Flush database.

    4. Enter the name of the Active-Active database to confirm that you want to flush the data.

    5. Click Flush.

  • Command line

    1. To find the ID of the Active-Active database, run:

      crdb-cli crdb list

      For example:

      $ crdb-cli crdb list
CRDB-GUID                                NAME                 REPL-ID CLUSTER-FQDN
a16fe643-4a7b-4380-a5b2-96109d2e8bca     crdb1                1       cluster1.local
a16fe643-4a7b-4380-a5b2-96109d2e8bca     crdb1                2       cluster2.local
a16fe643-4a7b-4380-a5b2-96109d2e8bca     crdb1                3       cluster3.local

    2. To flush the Active-Active database, run:

      crdb-cli crdb flush --crdb-guid <CRDB-GUID>

      The command output contains the task ID of the flush task, for example:

      $ crdb-cli crdb flush --crdb-guid a16fe643-4a7b-4380-a5b2-96109d2e8bca
Task 63239280-d060-4639-9bba-fc6a242c19fc created
---> Status changed: queued -> started

    3. To check the status of the flush task, run:

      crdb-cli task status --task-id <Task-ID>

      For example:

      $ crdb-cli task status --task-id 63239280-d060-4639-9bba-fc6a242c19fc
Task-ID: 63239280-d060-4639-9bba-fc6a242c19fc
CRDB-GUID: -
Status: finished

  • REST API

    1. To find the ID of the Active-Active database, use GET /v1/crdbs:

      GET https://[host][:port]/v1/crdbs

    2. To flush the Active-Active database, use PUT /v1/crdbs/{guid}/flush:

      PUT https://[host][:port]/v1/crdbs/<guid>/flush

      The command output contains the task ID of the flush task.

    3. To check the status of the flush task, use GET /v1/crdb_tasks:

      GET https://[host][:port]/v1/crdb_tasks/<task-id>
RATE THIS PAGE
Back to top ↑