---
{
    "title": "SHOW TRASH",
    "language": "zh-CN"
}
---

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# SHOW TRASH
## description
    该语句用于查看 backend 内的垃圾数据占用空间。
    语法：
        SHOW TRASH [ON BackendHost:BackendHeartBeatPort];

    说明：
        1. Backend 格式为该节点的BackendHost:BackendHeartBeatPort。
        2. TrashUsedCapacity 表示该节点垃圾数据占用空间。

## example

    1. 查看所有be节点的垃圾数据占用空间。

        SHOW TRASH;

    2. 查看'192.168.0.1:9050'的垃圾数据占用空间(会显示具体磁盘信息)。

        SHOW TRASH ON "192.168.0.1:9050";

## keyword
    SHOW, TRASH