Manage pending in memory and move it to synchroniser #1844
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This also fixes #1450 |
Codecov ReportAttention: Patch coverage is
Additional details and impacted files@@ Coverage Diff @@
## main #1844 +/- ##
==========================================
- Coverage 74.52% 74.43% -0.10%
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Files 109 109
Lines 11558 11493 -65
==========================================
- Hits 8614 8555 -59
- Misses 2272 2275 +3
+ Partials 672 663 -9 ☔ View full report in Codecov by Sentry. |
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kirugan
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This pull request is stale because it has been open 35 days with no activity. Remove stale label or comment or this will be closed in 14 days. |
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Pending Block is now only managed in memory this is to make sure that pending block in the DB and in memory do not become out of sync. Before the pending block was managed in memory as a cache, however, since there is only one pending block at a given time it doesn't make sense to keep track of pending block in both memory and DB. To reduce the number of block not found errors while simulating transactions it was decided to store empty pending block, using the latest header to fill in fields such as block number, parent block hash, etc. This meant that any time we didn't have a pending block this empty pending block would be served along with empty state diff and classes. Every time a new block was added to the blockchain a new empty pending block was also added to the DB. The unforeseen side effect of this change was when the --poll-pending-interval flag was disabled the rpc would still serve a pending block. This is incorrect behaviour. As the blocks changed per new versions of starknet the empty block also needed to be changed and a storage diff with a special contract "0x1" needed to be updated in the state diff. This overhead is unnecessary and incorrectly informs the user that there is a pending block when there isn't one.
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In order to moved handling of pending to synchroniser the following changes needed to be made: - Add database to synchroniser, so that pending state can be served - Blockchain and Events Filter have a pendingBlockFn() which returns the pending block. Due to import cycle pending struct could not be referenced, therefore, the anonymous function is passed. - Add PendingBlock() to return just the pending block, this was mainly added to support the pendingBlockFn(). - In rpc package the pending block and state is retrieved through synchroniser. Therefore, receipt and transaction handler now check the pending block for the requested transaction/receipt.
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Fixes
parts of#1789.A migration to remove the pending from DB is still outstanding.It would be best to review the commits individually and in order.