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fix docs about --builder (#4754)

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Align the document with the [implementation](2841f60686/beacon_node/execution_layer/src/lib.rs (L740)) regarding the `--builder` flag.


The `tokio::join!` macro takes a list of async expressions and evaluates them concurrently on the same task.
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zhiqiangxu 2023-10-26 05:23:50 +00:00
parent ba891e1fed
commit b82d1a993c
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book/src/builders.md
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@ -21,9 +21,7 @@ The beacon node and validator client each require a new flag for lighthouse to b
``` ```
lighthouse bn --builder https://mainnet-builder.test lighthouse bn --builder https://mainnet-builder.test
``` ```
The `--builder` flag will cause the beacon node to query the provided URL during block production for a block The `--builder` flag will cause the beacon node to simultaneously query the provided URL and the local execution engine during block production for a block payload with stubbed-out transactions. If either fails, the successful result will be used; If both succeed, the more profitable result will be used.
payload with stubbed-out transactions. If this request fails, Lighthouse will fall back to the local
execution engine and produce a block using transactions gathered and verified locally.
The beacon node will *only* query for this type of block (a "blinded" block) when a validator specifically requests it. The beacon node will *only* query for this type of block (a "blinded" block) when a validator specifically requests it.
Otherwise, it will continue to serve full blocks as normal. In order to configure the validator client to query for Otherwise, it will continue to serve full blocks as normal. In order to configure the validator client to query for