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Consistency
Ioannis Papapanagiotou edited this page Sep 7, 2015
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Consistency has been introduced to Dynomite in version 0.5.0 in the local region. There are two configurations.
DC_ONE: Reads and writes are propagated synchronously only to the node in the local Rack (Availability Zone) and asynchronously replicated to other Racks and regions.
DC_QUORUM: Reads and writes are propagated synchronously to quorum number of nodes in the local region and asynchronously to the rest.
Adding consistency can be done through the stats port:
curl http://localhost:22222/set_consistency/read/local_quorum
curl http://localhost:22222/set_consistency/write/local_quorum
Consistency can be configured for read or write operations separately (clusterwide)