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add ability for node to randomly request and descore if not serving blocks on WS period

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Danny Ryan 2021-01-13 18:03:40 -07:00
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specs/phase0/p2p-interface.md
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@ -753,6 +753,11 @@ Clients MUST keep a record of signed blocks seen on the epoch range
where `current_epoch` is defined by the current wall-clock time,
and clients MUST support serving requests of blocks on this range.
Synced clients unable to reply to Block requests within the
`MIN_EPOCHS_FOR_BLOCK_REQUESTS` epoch range MAY get descored or disconnected at any time.
Note, due to this it is risky behaviour to begin participating as a full node at the head if having
not yet backfilled on this range.
*Note*: The above requirement implies that nodes that start from a recent weak subjectivity checkpoint
MUST backfill the local block database to at least epoch `current_epoch - MIN_EPOCHS_FOR_BLOCK_REQUESTS`
to be compliant with `BlocksByRange` requests. To safely perform such a