55 lines
1.3 KiB
Plaintext
55 lines
1.3 KiB
Plaintext
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title Commit in FoundationDB
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participant "Client" as C
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participant "GetReadVersionProxy" as GRV
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participant "CommitProxy" as P
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participant "Master" as M
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participant "Resolver" as R
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participant "TLog" as T
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C ->> GRV: Request read version
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GRV ->> M: Request committed version
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M ->> GRV: Respond committed version
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GRV ->> C: Respond read version
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C ->> P: Commit a mutation with read version
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box right of P: Pre-resolution
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P ->> M: Request a commit version
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alt New request
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M ->> P: Commit version
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else Replied before with a commit version
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M ->> P: Commit version
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else Replied before without commit version
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M --x P: Never
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end
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box right of P: Resolution
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P ->> R: Send the transaction to the resolver
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alt No conflict
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R ->> P: TransactionCommitted
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else Conflict
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R ->> P: TransactionConflict
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else Read snapshot older than oldest version
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R ->> P: TransactionTooOld
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end
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box right of P: Post-resolution
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P ->> T: Push the transaction data to TLog
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alt TLog not stopped
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T ->> P: The version of the transactions that are already durable
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else TLog stopped
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T ->> P: tlog_stopped
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end
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box right of P: Reply
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P ->> M: Report raw commit version
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M -->> P: Void
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alt Commit successful
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P ->> C: Commit version
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else Conflict
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P ->> C: Not committed: conflict
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else Transaction too old
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P ->> C: Not committed: too old
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end
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