Ripple online deletion 区块链

Ripple online deletion
https://xrpl.org/configure-online-deletion.html
在您rippled的配置文件中，编辑节的online_delete字段[node_db]。

[node_db] # Other settings unchanged ... online_delete=2000 advisory_delete=0

设置online_delete为运行在线删除后要保留的最小分类帐版本数。如果使用自动删除（默认设置），
则服务器通常会在累积了这么多分类账版本两倍左右时运行删除。
complete_ledgers使用server_info方法定期检查服务器的范围，以确认要删除分类帐。
运行在线删除后，该complete_ledgers范围反映出较旧的分类帐不再可用。
随着服务器累积历史记录，可用的分类帐总数应缓慢增加到online_delete您配置的值的两倍，然后在运行在线删除时减少。
We have an instance with 500G storage.
We have explicitly configured the instance to prune transactions per this configuration:

[ledger_history] 324000[node_db] type=NuDB path=/var/nvm/ripple-db/nudb online_delete=324000 advisory_delete=0 In the first few month when we actively monitor the instance, we saw storage at one month is lower than the previous month:

2019/7/28:

$ df -h FilesystemSizeUsed Avail Use% Mounted on /dev/nvme0n1436G209G206G51% /var/nvm/ripple-db 2019/8/15:

2019/8/15:

$ df -h FilesystemSizeUsed Avail Use% Mounted on /dev/nvme0n1436G168G246G41% /var/nvm/ripple-db But 4 months later, on 2019/12/5, rippled has now eaten all the storage:

But 4 months later, on 2019/12/5, rippled has now eaten all the storage: