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Phase 2:Recording the Decision 7 can be committed of C,received a ready 7 message from all the participating sites:otherwise 7 must be aborted. Coordinator adds a decision record,<commit T>or <abort T>,to the log and forces record onto stable storage.Once the record stable storage it is irrevocable (even if failures occur) Coordinator sends a message to each participant informing it of the decision(commit or abort) Participants take appropriate action locally Database System Concepts-7th Edition 23.9 ©Silberscha乜,Korth and SudarshanDatabase System Concepts - 7 23.9 ©Silberschatz, Korth and Sudarshan th Edition Phase 2: Recording the Decision ▪ T can be committed of Ci received a ready T message from all the participating sites: otherwise T must be aborted. ▪ Coordinator adds a decision record, <commit T> or <abort T>, to the log and forces record onto stable storage. Once the record stable storage it is irrevocable (even if failures occur) ▪ Coordinator sends a message to each participant informing it of the decision (commit or abort) ▪ Participants take appropriate action locally
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