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AdministeringIn addition to administering the database server, you can tune performance, replicate data, and archive data.
System administrationThese topics contain concepts, procedures, and reference information for database and database server administrators to use for managing and tuning HCL OneDB™ database servers.
Administrator's GuideThe HCL OneDB™ Administrator's Guide provides the information required to administer HCL OneDB™.
Distributed data
Multiphase commit protocols
Two-phase commit protocol

Two-phase commit protocol

The two-phase commit protocol provides an automatic recovery mechanism in case a system or media failure occurs during execution of the transaction. The two-phase commit protocol ensures that all participating database servers receive and implement the same action (either to commit or to roll back a transaction), regardless of local or network failure.

If any database server is unable to commit its portion of the transaction, all database servers participating in the transaction must be prevented from committing their work.