Updated Updating CHT (markdown)
parent
10a14ecc61
commit
1962afe990
|
@ -0,0 +1,70 @@
|
||||||
|
Proof by construction.
|
||||||
|
|
||||||
|
## Generate CHT/BloomTrie:
|
||||||
|
1. Clone https://github.com/ethereum/go-ethereum
|
||||||
|
2. Run `make`
|
||||||
|
3. Run full node: `build/bin/geth --testnet --syncmode "full" --lightserv 90 --cache 512 console`
|
||||||
|
4. Wait until it synchronizes (if unsure, check the latest block number with http://ropsten.etherscan.io for example)
|
||||||
|
5. Find two log lines starting with **"Storing CHT"** and **"Storing BloomTrie"**.
|
||||||
|
Example output:
|
||||||
|
```
|
||||||
|
INFO [01-16|13:37:34] Storing CHT idx=71 sectionHead=196bbde833b65a00668ebfd41e2250252ca341b43f33719637ff9b7b0c6fb6c7 root=4d3108bf5334e1eee0d0940b43b69f532012640961f658cf5e42930dbebefba9
|
||||||
|
INFO [01-16|13:37:40] Storing BloomTrie section=71 sectionHead=196bbde833b65a00668ebfd41e2250252ca341b43f33719637ff9b7b0c6fb6c7 root=dcd1f171503b19970b37a851498c1eeac4744bfb26df9d67ab360818f3d37ba4 compression ratio=0.059
|
||||||
|
```
|
||||||
|
6. Write down 4 values (example, based on output above):
|
||||||
|
* Section Index: **71** (`idx=`)
|
||||||
|
* Section Head: **196bbde833b65a00668ebfd41e2250252ca341b43f33719637ff9b7b0c6fb6c7** (`sectionHead=`)
|
||||||
|
* CHT Root: **4d3108bf5334e1eee0d0940b43b69f532012640961f658cf5e42930dbebefba9** (`root=` from the "Storing CHT" line)
|
||||||
|
* BloomTrie Root: **dcd1f171503b19970b37a851498c1eeac4744bfb26df9d67ab360818f3d37ba4** (`root=` from the "Storing BloomTrie" line)
|
||||||
|
|
||||||
|
## Update CHT:
|
||||||
|
1. Update https://github.com/status-im/status-go/blob/develop/geth-patches/0006-latest-cht.patch with the new values
|
||||||
|
2. Example from the output above:
|
||||||
|
|
||||||
|
```diff
|
||||||
|
diff --git a/light/postprocess.go b/light/postprocess.go
|
||||||
|
index e7e51388..dc6562be 100644
|
||||||
|
--- a/light/postprocess.go
|
||||||
|
+++ b/light/postprocess.go
|
||||||
|
@@ -66,12 +66,20 @@ var (
|
||||||
|
chtRoot: common.HexToHash("6f56dc61936752cc1f8c84b4addabdbe6a1c19693de3f21cb818362df2117f03"),
|
||||||
|
bloomTrieRoot: common.HexToHash("aca7d7c504d22737242effc3fdc604a762a0af9ced898036b5986c3a15220208"),
|
||||||
|
}
|
||||||
|
+
|
||||||
|
+ statusRopstenCheckpoint = trustedCheckpoint{
|
||||||
|
+ name: "Ropsten testnet",
|
||||||
|
+ sectionIdx: 74,
|
||||||
|
+ sectionHead: common.HexToHash("196bbde833b65a00668ebfd41e2250252ca341b43f33719637ff9b7b0c6fb6c7"),
|
||||||
|
+ chtRoot: common.HexToHash("4d3108bf5334e1eee0d0940b43b69f532012640961f658cf5e42930dbebefba9"),
|
||||||
|
+ bloomTrieRoot: common.HexToHash("dcd1f171503b19970b37a851498c1eeac4744bfb26df9d67ab360818f3d37ba4"),
|
||||||
|
+ }
|
||||||
|
)
|
||||||
|
|
||||||
|
// trustedCheckpoints associates each known checkpoint with the genesis hash of the chain it belongs to
|
||||||
|
var trustedCheckpoints = map[common.Hash]trustedCheckpoint{
|
||||||
|
params.MainnetGenesisHash: mainnetCheckpoint,
|
||||||
|
- params.TestnetGenesisHash: ropstenCheckpoint,
|
||||||
|
+ params.TestnetGenesisHash: statusRopstenCheckpoint,
|
||||||
|
}
|
||||||
|
|
||||||
|
var (
|
||||||
|
```
|
||||||
|
|
||||||
|
2. TBD: apply patches to the `status-im/go-ethereum`
|
||||||
|
3. TBD: update vendored dependency using `dep` command
|
||||||
|
|
||||||
|
## How to avoid running full sync on you localhost?
|
||||||
|
|
||||||
|
1. Go to machine called `miner1`,
|
||||||
|
2. Run `service stop geth` to stop currently running geth,
|
||||||
|
3. Run a container:
|
||||||
|
|
||||||
|
```
|
||||||
|
docker run -d --name full-geth -i -p 30303:30303 -v /mnt/ethereum/custom-full:/root/.ethereum ethereum/client-go:v1.7.2 --testnet --syncmode "full" --cache 512 --verbosity 5 --lightserv 90
|
||||||
|
```
|
||||||
|
|
||||||
|
`/mnt/ethereum/custom-full` directory has previously downloaded chain-data files,
|
||||||
|
|
||||||
|
4. Grep for CHT logs: `docker logs --since=30s -f full-geth 2>&1 | grep -e "INFO\|CHT"`,
|
||||||
|
5. When you get the newest CHT number, stop `full-geth` container and remove it,
|
||||||
|
6. Bring back the stopped geth service: `service start geth`.
|
|
@ -1,34 +0,0 @@
|
||||||
Proof by construction.
|
|
||||||
|
|
||||||
## Generate CHT:
|
|
||||||
1. Clone https://github.com/ethereum/go-ethereum
|
|
||||||
2. Change `log.Trace` to `log.Error` in https://github.com/ethereum/go-ethereum/blob/bf1e2631281e1e439533f2abcf1e99a7b2f9552a/les/server.go#L403
|
|
||||||
3. Run `make`
|
|
||||||
4. Run full node: `build/bin/geth --testnet --syncmode "full" --lightserv 90 --cache 512 console`
|
|
||||||
5. Wait until it synchronises and find error messages like "Generated CHT" with the needed values
|
|
||||||
|
|
||||||
## Update CHT:
|
|
||||||
1. Update https://github.com/status-im/status-go/blob/9463d3843aa237d5ddc79f3cc2187a422d4065b3/static/config/cht.json with the new values
|
|
||||||
2. Run `make generate` to include the new static file to `bindata.go`
|
|
||||||
3. Update `geth/params/config_test.go` and `geth/params/testdata/config.*.json` with the new values
|
|
||||||
4. Run `make`
|
|
||||||
5. Run `build/bin/statusd --networkid 3 les` on all available networks and ensure block synchronisation starts from block number `number * 4096`
|
|
||||||
6. Commit and file a PR
|
|
||||||
|
|
||||||
If anyone knows a better way, we'd be extremely grateful if you shared it.
|
|
||||||
|
|
||||||
## How to avoid running full sync on you localhost?
|
|
||||||
|
|
||||||
1. Go to machine called `miner1`,
|
|
||||||
2. Run `service stop geth` to stop currently running geth,
|
|
||||||
3. Run a container:
|
|
||||||
|
|
||||||
```
|
|
||||||
docker run -d --name full-geth -i -p 30303:30303 -v /mnt/ethereum/custom-full:/root/.ethereum ethereum/client-go:v1.7.2 --testnet --syncmode "full" --cache 512 --verbosity 5 --lightserv 90
|
|
||||||
```
|
|
||||||
|
|
||||||
`/mnt/ethereum/custom-full` directory has previously downloaded chain-data files,
|
|
||||||
|
|
||||||
4. Grep for CHT logs: `docker logs --since=30s -f full-geth 2>&1 | grep -e "INFO\|CHT"`,
|
|
||||||
5. When you get the newest CHT number, stop `full-geth` container and remove it,
|
|
||||||
6. Bring back the stopped geth service: `service start geth`.
|
|
Loading…
Reference in New Issue