Abstract: Aspects of the present invention relate to guaranteeing delivery of replication messages in distributed storage systems. A request to perform an operation may be received. A first replication message corresponding to the request may be created, where the first replication message comprises instructions to replicate the result of the operation to one or more target storages. The replication message may be inserted in a message queue with a delayed visibility. The operation may be performed, where a result of the operation is persisted in a source storage in a data store. Upon determining that the result was successfully persisted in the source storage, a second replication message may be created, where the second replication message comprises instructions to replicate the result of the operation to the one or more target storages. The second replication message may be inserted in the message queue with an immediate visibility.

Abstract: Embodiments are directed to replicating data in distributed storage. A replication message may be retrieved from a message queue associated with a source table. The replication message may include a row identifier. One or more target storages within a same replication group as the source table may be identified. A row from each of the one or more target storages may be obtained corresponding to the row identifier. A winning row may be determined from the obtained rows based on a latest timestamp of the row. A replication operation may be created based on the winning row. The replication operation may be performed on the obtained rows from each of the target storages.

Abstract: Aspects of the present invention relate to guaranteeing delivery of replication messages in distributed storage systems. A request to perform an operation may be received. A first replication message corresponding to the request may be created, where the first replication message comprises instructions to replicate the result of the operation to one or more target storages. The replication message may be inserted in a message queue with a delayed visibility. The operation may be performed, where a result of the operation is persisted in a source storage in a data store. Upon determining that the result was successfully persisted in the source storage, a second replication message may be created, where the second replication message comprises instructions to replicate the result of the operation to the one or more target storages. The second replication message may be inserted in the message queue with an immediate visibility.

Abstract: Embodiments are directed to replicating data in distributed storage. A replication message may be retrieved from a message queue associated with a source table. The replication message may include a row identifier. One or more target storages within a same replication group as the source table may be identified. A row from each of the one or more target storages may be obtained corresponding to the row identifier. A winning row may be determined from the obtained rows based on a latest timestamp of the row. A replication operation may be created based on the winning row. The replication operation may be performed on the obtained rows from each of the target storages.