Safe Haskell	None
Language	Haskell2010

Cardano.Tools.DBImmutaliser.Run

Contents

Setup
Immutalise

Synopsis

data Opts = Opts {
- dbDirs ∷ DBDirs FilePath
- configFile ∷ FilePath
- verbose ∷ Bool
- dotOut ∷ Maybe FilePath
- dryRun ∷ Bool
}
run ∷ Opts → IO ()
data DBDirs a = DBDirs {
- immDBDir ∷ a
- volDBDir ∷ a
}
withDBs ∷ (IOLike m, ConvertRawHash blk, LedgerSupportsProtocol blk, ImmutableDbSerialiseConstraints blk, VolatileDbSerialiseConstraints blk, NodeInitStorage blk) ⇒ TopLevelConfig blk → ResourceRegistry m → DBDirs (SomeHasFS m) → (ImmutableDB m blk → VolatileDB m blk → m a) → m a
data TraceImmutalisationEvent blk
- = TraceStartImmutalisation (WithOrigin (Tip blk)) MaxSlotNo
- | TraceReachableBlocks [BlockInfo blk]
- | TraceNoVolatileCandidate
- | TraceAllCandidates [(NonEmpty (HeaderHash blk), SelectView (BlockProtocol blk))]
- | TraceCandidateToImmutalise (HeaderHash blk) Int (SelectView (BlockProtocol blk))
- | TraceCopiedtoImmutableDB (WithOrigin (Tip blk))
immutalise ∷ (IOLike m, BlockSupportsProtocol blk) ⇒ BlockConfig blk → Tracer m (TraceImmutalisationEvent blk) → Bool → ImmutableDB m blk → VolatileDB m blk → m ()

Documentation

data Opts Source #

Constructors

Opts
Fields dbDirs ∷ DBDirs FilePath configFile ∷ FilePath verbose ∷ Bool dotOut ∷ Maybe FilePath dryRun ∷ Bool

run ∷ Opts → IO () Source #

Setup

data DBDirs a Source #

Constructors

DBDirs
Fields immDBDir ∷ a volDBDir ∷ a

Instances

Instances details

Functor DBDirs Source #
Instance details Defined in Cardano.Tools.DBImmutaliser.Run Methods fmap ∷ (a → b) → DBDirs a → DBDirs b # (<$) ∷ a → DBDirs b → DBDirs a #
Foldable DBDirs Source #
Instance details Defined in Cardano.Tools.DBImmutaliser.Run Methods fold ∷ Monoid m ⇒ DBDirs m → m # foldMap ∷ Monoid m ⇒ (a → m) → DBDirs a → m # foldMap' ∷ Monoid m ⇒ (a → m) → DBDirs a → m # foldr ∷ (a → b → b) → b → DBDirs a → b # foldr' ∷ (a → b → b) → b → DBDirs a → b # foldl ∷ (b → a → b) → b → DBDirs a → b # foldl' ∷ (b → a → b) → b → DBDirs a → b # foldr1 ∷ (a → a → a) → DBDirs a → a # foldl1 ∷ (a → a → a) → DBDirs a → a # toList ∷ DBDirs a → [a] # null ∷ DBDirs a → Bool # length ∷ DBDirs a → Int # elem ∷ Eq a ⇒ a → DBDirs a → Bool # maximum ∷ Ord a ⇒ DBDirs a → a # minimum ∷ Ord a ⇒ DBDirs a → a # sum ∷ Num a ⇒ DBDirs a → a # product ∷ Num a ⇒ DBDirs a → a #
Traversable DBDirs Source #
Instance details Defined in Cardano.Tools.DBImmutaliser.Run Methods traverse ∷ Applicative f ⇒ (a → f b) → DBDirs a → f (DBDirs b) # sequenceA ∷ Applicative f ⇒ DBDirs (f a) → f (DBDirs a) # mapM ∷ Monad m ⇒ (a → m b) → DBDirs a → m (DBDirs b) # sequence ∷ Monad m ⇒ DBDirs (m a) → m (DBDirs a) #

withDBs ∷ (IOLike m, ConvertRawHash blk, LedgerSupportsProtocol blk, ImmutableDbSerialiseConstraints blk, VolatileDbSerialiseConstraints blk, NodeInitStorage blk) ⇒ TopLevelConfig blk → ResourceRegistry m → DBDirs (SomeHasFS m) → (ImmutableDB m blk → VolatileDB m blk → m a) → m a Source #

Immutalise

data TraceImmutalisationEvent blk Source #

Constructors

TraceStartImmutalisation
Fields (WithOrigin (Tip blk)) Tip of the ImmutableDB. MaxSlotNo `MaxSlotNo` of the VolatileDB.
TraceReachableBlocks
Fields [BlockInfo blk] The set of volatile blocks reachable from the immutable tip.
TraceNoVolatileCandidate	No blocks in the VolatileDB extend the immutable tip.
TraceAllCandidates	Found these volatile candidates extending the immutable tip.
Fields [(NonEmpty (HeaderHash blk), SelectView (BlockProtocol blk))] Each candidate is represented by its block hashes of the candidate after the immutable tip, and the `SelectView` of the candidate tip. The candidates are sorted by this `SelectView` in decreasing order.
TraceCandidateToImmutalise	The volatile candidate to immutalise.
Fields (HeaderHash blk) Hash of the candidate tip. Int Blocks to be added to the ImmutableDB. (SelectView (BlockProtocol blk)) `SelectView` of the candidate tip.
TraceCopiedtoImmutableDB
Fields (WithOrigin (Tip blk)) New tip of the ImmutableDB.

Instances

Instances details

(ConsensusProtocol (BlockProtocol blk), StandardHash blk) ⇒ Show (TraceImmutalisationEvent blk) Source #
Instance details Defined in Cardano.Tools.DBImmutaliser.Run Methods showsPrec ∷ Int → TraceImmutalisationEvent blk → ShowS # show ∷ TraceImmutalisationEvent blk → String # showList ∷ [TraceImmutalisationEvent blk] → ShowS #

immutalise Source #

Arguments

∷ (IOLike m, BlockSupportsProtocol blk)
⇒ BlockConfig blk
→ Tracer m (TraceImmutalisationEvent blk)
→ Bool	Dry run?
→ ImmutableDB m blk
→ VolatileDB m blk
→ m ()

Copy a specific chain from the given VolatileDB to the ImmutableDB, such that other tools that only work with an ImmutableDB can process the corresponding blocks.

This function requires exclusive access to the databases.

Currently, this will pick the best (according to the SelectView) chain extending the immutable tip, and it will _not_ do any kind of validation.

Future work might include customizing this behavior, like:

picking the best _valid_ chain (requires reading a ledger snapshot and/or replaying)
picking a chain that contains particular points (user input)

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