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Update 3.manage-snapshot.md #1158

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Nov 3, 2021
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Update 3.manage-snapshot.md #1158

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5 changes: 3 additions & 2 deletions docs-2.0/7.data-security/3.manage-snapshot.md
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Expand Up @@ -102,9 +102,10 @@ nebula> SHOW SNAPSHOTS;
```

2. 当数据丢失需要通过快照恢复时，用户可以找到合适的时间点快照，将内部的文件夹`data`和`wal`分别拷贝到各自的上级目录（和`checkpoints`平级），覆盖之前的`data`和`wal`，然后重启集群即可。
!!! caution

需要同时覆盖所有Meta节点的data和wal目录，因为存在重启集群后发生Meta重新选举leader的情况，如果不覆盖所有Meta节点，新的leader使用的还是最新的Meta数据，导致恢复失败。
!!! caution

需要同时覆盖所有Meta节点的data和wal目录，因为存在重启集群后发生Meta重新选举leader的情况，如果不覆盖所有Meta节点，新的leader使用的还是最新的Meta数据，导致恢复失败。


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