Extend the hardcoded assume_valid_target to an array.
#4742
+254
−104
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…onential growth target to lastest_assume_valid_target
Signed-off-by: Eval EXEC <execvy@gmail.com>
Signed-off-by: Eval EXEC <execvy@gmail.com>
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What problem does this PR solve?
Resolve #4518.
Follow up #4254, this PR want to hardcode an array of default_valid_targets for ckb-sync.
What is changed and how it works?
This PR aims to replace the hardcoded DEFAULT_ASSUME_VALID_TARGET in CKB with an array. After CKB starts up, the header sync process currently takes over an hour to sync headers and search for the hardcoded target within them.
By changing this target to an array, which contains selected blocks from the main chain with exponentially increasing heights, we can improve the process. As soon as the header sync reaches the first block, it can immediately start using the first target in the array as the new synchronization target, allowing for more efficient block syncing after CKB startup.
What's Changed:
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