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2011-11-28[mnesia] Add possibility for implementation dependent storage options to ↵Dan Gudmundsson
create_table
2011-05-20Update copyright yearsBjörn-Egil Dahlberg
2011-05-16Add {majority, boolean()} per-table option.Ulf Wiger
With {majority, true} set for a table, write transactions will abort if they cannot commit to a majority of the nodes that have a copy of the table. Currently, the implementation hooks into the prepare_commit, and forces an asymmetric transaction if the commit set affects any table with the majority flag set. In the commit itself, the transaction will abort if it cannot satisfy the majority requirement for all tables involved in the thransaction. A future optimization might be to abort already when a write lock is attempted on such a table (/-object) and the lock cannot be set on enough nodes. This functionality introduces the possibility to automatically "fence off" a table in the presence of failures. This is a first implementation. Only basic tests have been performed.
2009-11-20The R13B03 release.OTP_R13B03Erlang/OTP