Quick questions on replication and write synchronization mode

[John Wilson]

Hi,

1. Assume I write data item X with a FULL_ASYNC write synchronization mode,
what happens if I immediately attempt to read X? Will I read an old value
or do I wait till the previous writes are completed?
2. If the write mode is PRIMARY_ASYNC, will the immediate read operations
on X get answered just the primary node or will I read an old value or wait
for the previous write to complete?
3. During backups, do the backup nodes get data from the client or from the
primary node?

Thanks,