Support custom minimum gas price #1930
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| } | ||
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| if !isFlagSet["minGasPrice"] { | ||
| *minGasPrice = netw.minGasPrice |
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Moved this line out of the *ethController conditional block because we'd want to set the min gas price using the network config regardless of whether -ethController was specified or not.
| @@ -515,7 +519,7 @@ func main() { | |||
| CleanupInterval: cleanupInterval, | |||
| TTL: smTTL, | |||
| RedeemGas: redeemGas, | |||
| SuggestGasPrice: backend.SuggestGasPrice, | |||
| SuggestGasPrice: client.Backend().SuggestGasPrice, | |||
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This ensures that tx cost estimation in LocalSenderMonitor uses the gas price returned by GasPriceMonitor.
| return c.backend, nil | ||
| } | ||
| func (c *client) Backend() Backend { | ||
| return c.backend |
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Dropped the error in the return type for this method because there should always be a backend configured when a client is instantiated and doing so makes it easier to call backend methods when the caller only has access to the client i.e. we can do client.Backend().SomeMethod() without additional error handling.
| @@ -59,9 +59,25 @@ func (gpm *GasPriceMonitor) GasPrice() *big.Int { | |||
| gpm.gasPriceMu.RLock() | |||
| defer gpm.gasPriceMu.RUnlock() | |||
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| if gpm.gasPrice.Cmp(gpm.minGasPrice) < 0 { | |||
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We were already dropping polled gas prices that were below the min gas price, but this ensures that the lowest value returned by GasPrice() is min gas price.
| b, err := s.LivepeerNode.Eth.Backend() | ||
| if err != nil { | ||
| respondWith400(w, err.Error()) | ||
| if s.LivepeerNode.Eth == nil { |
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Added this check so livepeer_cli doesn't immediately crash the node when running in off-chain mode. Though other things can probably crash the node when running in off-chain mode. I haven't take a thorough look - this just happened to be the one crash scenario that stood out to me.
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Overall looks good to me 👍 the comments you added in the review were really helpful. I just wanted to point out that https://github.com/livepeer/go-livepeer/pull/1923/files does some restructuring in the eth package (see comment) so it might be worth to base off of that PR instead (which in itself using nv/tx-fixes as a base branch).
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Rebased off of master and switched the target branch to master as well now that #1915 has been merged. |
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Looks like there is a failing test, I assume because minGasPrice isn't set for the test. |
Fixed in 5eb1ee1. |
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LGTM let's squash the fixup 👍 |
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Done. |
What does this pull request do? Explain your changes. (required)
Adds support for configuring a custom minimum gas price using the
-minGasPriceflag, requests to the/setMinGasPricewebserver endpoint andlivepeer_cli.This PR is based off of #1915 which injects GasPriceMonitor into the backend type defined in
ethso in this PR we define setters/getters for minGasPrice for GasPriceMonitor which are used by the backend.Specific updates (required)
See commit history.
How did you test each of these updates (required)
Added unit tests and tested manually using devtool to confirm that if the last polled gas price < minGasPrice, txs will be submitted with minGasPrice.
Does this pull request close any open issues?
Fixes #1914
Checklist:
makeruns successfully./test.shpass