Lotus 1.16.0 minimum snapshot export import

系列文章目录

lotus

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前言

lotus 1.16.0 最小快照

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一、lotus

# lotus --version
lotus version 1.16.0+mainnet+git.01254ab32

二、导出最小快照

1.Export snapshots in the background

screen -S chia

lotus chain export --recent-stateroots=901 --skip-old-msgs my-snapshot.car

• The snapshot export is complete

68G Jul 29 12:26 my-snapshot.car

三、导入快照

• 参考

lotus daemon stop
mv ~/.lotus/datastore/chain ~/.lotus/datastore/chain_backup
mkdir ~/.lotus/datastore/chain 
lotus daemon --import-snapshot my-snapshot.car --halt-after-import
lotus daemon 
lotus sync status 
lotus sync wait 

• 运行

lotus daemon stop

# mv lotus/datastore/chain/ lotus/datastore/chain_backup
# mkdir lotus/datastore/chain
# du -sh lotus/datastore/* 

• 导入快照

lotus daemon --import-snapshot my-snapshot.car --halt-after-import

四、运行 lotus

nohup lotus daemon > /seal/daemon.log 2>&1 &

五、导出快照时间

• Minimum snapshot export time1h30m

# cat daemon.log | grep export
2022-07-29T10:54:35.818+0800	INFO	chainstore	store/snapshot.go:171	export started
2022-07-29T12:10:28.248+0800	INFO	chainstore	store/snapshot.go:103	export	{
    "height": "2024640"}
2022-07-29T12:13:22.675+0800	INFO	chainstore	store/snapshot.go:103	export	{
    "height": "2021760"}
......
2022-07-29T12:26:59.062+0800	INFO	chainstore	store/snapshot.go:103	export	{
    "height": "2880"}
2022-07-29T12:26:59.627+0800	INFO	chainstore	store/snapshot.go:103	export	{
    "height": "0"}
2022-07-29T12:26:59.722+0800	INFO	chainstore	store/snapshot.go:182	export finished	{
    "duration": 5543.90347304}

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参考

1. Compacting the chain data