I think javadoc is the best source for this:
/**
* Flag indicating that Ignite should wait for write or commit replies
from all nodes.
* This behavior guarantees that whenever any of the atomic or
transactional writes
* complete, all other participating nodes which cache the written data
have been updated.
*/
so with FULL_SYNC client node will wait for data will be saved on the
primary node and backup node.
if you have REPLICATED cache that means you have 1 primary node and all
other nodes in the cluster
store backups, so in your case, you lost one backup and that's it. Data was
saved.
You right that now you have cluster consists of only 1 node, but you can
start a new node or even hundred nodes,
and data will be replicated to all new nodes.
--
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