Doesn asynchronous replication to the database mean that data might be lost in case of failure?
No, because asynchronous replication refers to the transfer of data between the in-memory data grid (IMDG) and the database. The IMDG, however, maintains in-memory backups that are synchronously updated. If one of the nodes in a partitioned cluster fails before the replication to the underlying database took place, its backup will be able to instantly continue from that exact point.
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