{
  "schema_version": 2,
  "id": "commands/flushdb",
  "title": "FLUSHDB",
  "url": "https://redis.io/docs/latest/commands/flushdb/",
  "summary": "Remove all keys from the current database.",
  "since": "1.0.0",
  "tags": [
    "docs",
    "develop",
    "stack",
    "oss",
    "rs",
    "rc",
    "oss",
    "kubernetes",
    "clients"
  ],
  "last_updated": "2026-09-18T09:48:09+01:00",
  "page_type": "content",
  "content_hash": "d9cd8a92703522548757a51ac8717a6481a202d90c6fe65db07d2a1353324978",
  "sections": [
    {
      "id": "overview",
      "title": "Overview",
      "role": "overview",
      "text": "> [!NOTE]\n> This command's behavior varies in clustered Redis environments. See the [multi-key operations](https://redis.io/docs/latest/develop/using-commands/multi-key-operations) page for more information.\n\n\nDelete all the keys of the currently selected DB.\nThis command never fails.\n\nBy default, `FLUSHDB` will synchronously flush all keys from the database.\nStarting with Redis 6.2, setting the `lazyfree-lazy-user-flush` configuration directive to `yes` changes the default flush mode to asynchronous."
    },
    {
      "id": "optional-arguments",
      "title": "Optional arguments",
      "role": "parameters",
      "text": "<details open><summary><code>ASYNC | SYNC</code></summary>\n\nFlush asynchronously (`ASYNC`) or synchronously (`SYNC`). The default is set by the `lazyfree-lazy-user-flush` configuration directive.\n\n</details>"
    },
    {
      "id": "details",
      "title": "Details",
      "role": "content",
      "text": "* An asynchronous `FLUSHDB` command only deletes keys that were present at the time the command was invoked. Keys created during an asynchronous flush will be unaffected.\n* This command does not delete functions.\n* When using Redis Cluster, this command is identical to `FLUSHALL` since a Redis Cluster supports only one database with an ID of zero."
    },
    {
      "id": "redis-software-and-redis-cloud-compatibility",
      "title": "Redis Software and Redis Cloud compatibility",
      "role": "content",
      "text": "| Redis<br />Software | Redis<br />Cloud | <span style=\"min-width: 9em; display: table-cell\">Notes</span> |\n|:----------------------|:-----------------|:------|\n| <span title=\"Supported\">&#x2705; Standard</span><br /><span title=\"Not supported\"><nobr>&#x274c; Active-Active\\*</nobr></span> | <span title=\"Supported\">&#x2705; Standard</span><br /><span title=\"Not supported\"><nobr>&#x274c; Active-Active</nobr></span> | \\*Can use the [Active-Active flush API request](https://redis.io/docs/latest/operate/rs/references/rest-api/requests/crdbs/flush). |"
    },
    {
      "id": "return-information",
      "title": "Return information",
      "role": "returns",
      "text": "**RESP2:**\n\n[Simple string reply](../../develop/reference/protocol-spec#simple-strings): `OK`.\n\n**RESP3:**\n\n[Simple string reply](../../develop/reference/protocol-spec#simple-strings): `OK`."
    }
  ],
  "examples": []
}