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Check Sync Status First (#7895)

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Co-authored-by: Preston Van Loon <preston@prysmaticlabs.com>
This commit is contained in:
Nishant Das 2020-11-26 02:27:27 +08:00 committed by GitHub
parent 987205afc6
commit aefa3e191a
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GPG Key ID: 4AEE18F83AFDEB23
1 changed files with 19 additions and 1 deletions
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20
beacon-chain/powchain/service.go
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@ -377,20 +377,38 @@ func (s *Service) dialETH1Nodes() (*ethclient.Client, *gethRPC.Client, error) {
return nil, nil, err
}
httpClient := ethclient.NewClient(httpRPCClient)
// Add a method to clean-up and close clients in the event
// of any connection failure.
closeClients := func() {
httpRPCClient.Close()
httpClient.Close()
}
syncProg, err := httpClient.SyncProgress(s.ctx)
if err != nil {
closeClients()
return nil, nil, err
}
if syncProg != nil {
closeClients()
return nil, nil, errors.New("eth1 node has not finished syncing yet")
}
// Make a simple call to ensure we are actually connected to a working node.
cID, err := httpClient.ChainID(s.ctx)
if err != nil {
closeClients()
return nil, nil, err
}
nID, err := httpClient.NetworkID(s.ctx)
if err != nil {
closeClients()
return nil, nil, err
}
if cID.Uint64() != params.BeaconNetworkConfig().ChainID {
closeClients()
return nil, nil, fmt.Errorf("eth1 node using incorrect chain id, %d != %d", cID.Uint64(), params.BeaconNetworkConfig().ChainID)
}
if nID.Uint64() != params.BeaconNetworkConfig().NetworkID {
closeClients()
return nil, nil, fmt.Errorf("eth1 node using incorrect network id, %d != %d", nID.Uint64(), params.BeaconNetworkConfig().NetworkID)
}