Problem: historical data loss after node restart

[1143857824]

Problem: historical data loss after node restart Expected result: it is hoped that the data after the time when the node is first built can be retained, and the previous data will not be lost even if it is restarted

How to configure nodes to achieve this purpose？

The following is our current node setup configuration, but there is this problem at present

rippled.cfg

[server]
port_rpc_admin_local
port_peer
port_ws_admin_local

[port_rpc_admin_local]
port = 5005
ip = 0.0.0.0
admin = 0.0.0.0
protocol = http

[port_peer]
port = 51235
ip = 0.0.0.0
#ip = ::
protocol = peer

[port_ws_admin_local]
port = 6006
ip = 0.0.0.0
admin = 0.0.0.0
protocol = ws

[node_size]
medium

[node_db]
type=NuDB
path=/var/lib/rippled/db/nudb
online_delete=81920000
advisory_delete=0

[database_path]
/var/lib/rippled/db

[debug_logfile]
/var/log/rippled/debug.log

[sntp_servers]
time.windows.com
time.apple.com
time.nist.gov
pool.ntp.org


[validators_file]
validators.txt

[rpc_startup]
{ "command": "log_level", "severity": "warning" }

[ssl_verify]
1