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Author	SHA1	Message	Date
Shawn Pearce	81f9c18433	Define MonotonicClock interface for advanced timestamps MonotonicClock can be implemented to provide more certainity about time than the standard System.currentTimeMillis() can provide. This can be used by classes such as PersonIdent and Ketch to rely on more certainity about time moving in a strictly ascending order. Gerrit Code Review can also leverage this interface through its embedding of JGit and use MonotonicClock and ProposedTimestamp to provide stronger assurance that NoteDb time is moving forward. Change-Id: I1a3cbd49a39b150a0d49b36d572da113ca83a786	7 years ago
Shawn Pearce	9b33f4aeeb	Ketch: Basic replication system Git Ketch is a multi-master Git repository management system. Writes are successful only if a majority of participant servers agree. Acked writes are durable against server failures as a majority of the participants store all required objects. Git Ketch is modeled on the Raft Consensus Algorithm[1]. A ketch sailing vessel is faster and more nimble than a raft. It can also carry more source codes. Git Ketch front-loads replication costs, which vaguely resembles a ketch sailing vessel's distinguishing feature of the main mast on the front of the ship. [1] https://raft.github.io/ Change-Id: Ib378dab068961fc7de624cd96030266660b64fb4	8 years ago

Author

SHA1

Message

Date

Shawn Pearce

81f9c18433

Define MonotonicClock interface for advanced timestamps

MonotonicClock can be implemented to provide more certainity about
time than the standard System.currentTimeMillis() can provide. This
can be used by classes such as PersonIdent and Ketch to rely on
more certainity about time moving in a strictly ascending order.

Gerrit Code Review can also leverage this interface through its
embedding of JGit and use MonotonicClock and ProposedTimestamp to
provide stronger assurance that NoteDb time is moving forward.

Change-Id: I1a3cbd49a39b150a0d49b36d572da113ca83a786

7 years ago

Shawn Pearce

9b33f4aeeb

Ketch: Basic replication system

Git Ketch is a multi-master Git repository management system.  Writes
are successful only if a majority of participant servers agree.  Acked
writes are durable against server failures as a majority of the
participants store all required objects.

Git Ketch is modeled on the Raft Consensus Algorithm[1].  A ketch
sailing vessel is faster and more nimble than a raft.  It can also
carry more source codes.

Git Ketch front-loads replication costs, which vaguely resembles a
ketch sailing vessel's distinguishing feature of the main mast on the
front of the ship.

[1] https://raft.github.io/
Change-Id: Ib378dab068961fc7de624cd96030266660b64fb4

8 years ago

2 Commits (81f9c18433f9d53a64498b07c90c4fc73654d942)