PHOENIX-7843 TLA+ specification of Consistent Failover#2461
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apurtell wants to merge 1 commit intoapache:PHOENIX-7562-feature-newfrom
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PHOENIX-7843 TLA+ specification of Consistent Failover#2461apurtell wants to merge 1 commit intoapache:PHOENIX-7562-feature-newfrom
apurtell wants to merge 1 commit intoapache:PHOENIX-7562-feature-newfrom
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Formal specification of the Phoenix Consistent Failover protocol and implementation using TLA+ and the TLC model checker. The spec verifies safety properties such as mutual exclusion, zero RPO, and abort correctness under arbitrary interleavings of admin actions, HDFS failures, RS crashes, ZK connection/session failures, watcher retry exhaustion, and the anti-flapping timer.
Literate programming versions of all specification files are available in the
markdown/directory, referenced from theREADME.md. Each file includes the complete TLA+ code with comments converted to prose that discusses modeling choices, tradeoffs, and implementation traceability in depth.