This implements the conversion of existing blob transactions to the new proof
version. Conversion is triggered at the Osaka fork boundary. The conversion is
designed to be idempotent, and may be triggered multiple times in case of a reorg
around the fork boundary.
This change is the last missing piece that completes our strategy for the blobpool
conversion. After the Osaka fork,
- new transactions will be converted on-the-fly upon entry to the pool
- reorged transactions will be converted while being reinjected
- (this change) existing transactions will be converted in the background
---------
Co-authored-by: Gary Rong <garyrong0905@gmail.com>
Co-authored-by: lightclient <lightclient@protonmail.com>
This pull request introduces a queue for legacy sidecar conversion to
handle transactions that persist after the Osaka fork. Simply dropping
these transactions would significantly harm the user experience.
To balance usability with system complexity, we have introduced a
conversion time window of two hours post Osaka fork. During this period,
the system will accept legacy blob transactions and convert them in a
background process.
After the window, all legacy transactions will be rejected. Notably, all
the blob transactions will be validated statically before the conversion,
and also all conversion are performed in a single thread, minimize the risk
of being DoS.
We believe this two hour window provides sufficient time to process
in-flight legacy transactions and allows submitters to migrate to the
new format.
---------
Co-authored-by: Felix Lange <fjl@twurst.com>
