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wigy 535325d2e6 Upgrading parity-scale-codec to v3 (#10825 )

* Upgraded dependencies

* Adapting code to scale v3

* Empty commit to trigger CI

* Triggering CI

* Fixing UI test

* Remove superfluous dev-dep added by #9228

* Cryout for CI

2022-02-24 15:34:34 +01:00

src

Fast/warp sync fixes (#10562 )

2022-01-13 15:26:06 +00:00

Cargo.toml

Upgrading parity-scale-codec to v3 (#10825 )

2022-02-24 15:34:34 +01:00

README.md

prepping for releasing rc6 (#6922 )

2020-08-20 17:04:42 +02:00

README.md

State database maintenance. Handles canonicalization and pruning in the database. The input to this module is a ChangeSet which is basically a list of key-value pairs (trie nodes) that were added or deleted during block execution.

Canonicalization.

Canonicalization window tracks a tree of blocks identified by header hash. The in-memory overlay allows to get any node that was inserted in any of the blocks within the window. The tree is journaled to the backing database and rebuilt on startup. Canonicalization function selects one root from the top of the tree and discards all other roots and their subtrees.

Pruning.

See RefWindow for pruning algorithm details. StateDb prunes on each canonicalization until pruning constraints are satisfied.

License: GPL-3.0-or-later WITH Classpath-exception-2.0