AMPS supports synchronous and asynchronous replication. Each instance of AMPS can replicate its messages to multiple replication destinations where each destination can specify whether it is sync or async, the topics to be replicated and content filters to limit the amount of data that is replicated. To support synchronous replication, AMPS has a transaction log that will safely store messages that will be replicated. The combination of flexible replication destination specification and a transaction log allows for multiple High Availability (HA) setups with AMPS.
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