lotus chain目录越来越大，导致硬盘存储空间不足，请问如果缩减，或删除无用的历史记录

[qq71151461]

如果删除，重新获取快照，进行同步，又太慢了

[lcgogo]

你现在有多大了，我有2个节点，一个节点快700GB，一个500GB，不清楚差的200GB有没有意义

[jennijuju]

This is not an issue per-se, can be a good discussion topic tho.

Currently, you can remove the chain datastore folder and re-import from a latest snapshot and you should be able to be fully synced around 30 min.

This pr is also a good option to try.