Local Transactions
A local transaction is any transaction that does not modify a shared object.
Global Transactions
A global transaction is any transaction that modifies data in shared objects or changes the schema of any persistent object. Global transactions may only be performed on the coordinator node or a writer node. The effects of a global transaction are visible on all nodes of the multiplex.
Coordinator Failure During Global Transaction
If the coordinator fails or is shut down during a writer-initiated global transaction, a “Coordinator node not responding” error occurs. Depending on the current state of the global transaction, one of the following will happen: