How to fast start without previous history
Goal
This procedure records the current chain state and future history, without previous historical data on the local chain.
Before you begin
- Make sure Antelope is installed.
- Learn about Using Nodeos.
- Get familiar with state_history_plugin.
Steps
Get the following:
- A portable snapshot (
data/snapshots/snapshot-xxxxxxx.bin
) - Optional: a block log which includes the block the snapshot was taken at
- A portable snapshot (
Make sure
data/state
does not existStart
nodeos
with the--snapshot
option, and the options listed in thestate_history_plugin
.Look for
Placing initial state in block n
in the log, where n is the start block number.If using a database filler, start the filler with
--fpg-create
(if PostgreSQL),--fill-skip-to n
, and--fill-trim
. Replacen
with the value above.Do not stop
nodeos
until it has received at least 1 block from the network, or it won't be able to restart.
Remarks
If nodeos
fails to receive blocks from the network, then try the above using net_api_plugin
. Use cleos net disconnect
and cleos net connect
to reconnect nodes which timed out.
[[caution | Caution when using net_api_plugin
]]
| Either use a firewall to block access to your http-server-address
, or change it to localhost:8888
to disable remote access.
[[info]]
| If you run a database filler after this point, use the --fill-trim
option when restarting. Only use --fpg-create
and --fill-skip-to
the first time.
[[info]]
| On large chains, this procedure creates a delta record that is too large for javascript processes to handle. 64-bit C++ processes can handle the large record. If using a database filler, fill-pg
and fill-lmdb
break up the large record into smaller records when filling databases.