To use rsync_wan (rsync with delta transfers) we need to create a link named wsrep_sst_rsync_wan pointing to wsrep_sst_rsync.
See line 130 of wsrep_sst_rsync
# Use deltaxfer only for WAN
|
inv=$(basename $0)
|
[ "$inv" = "wsrep_sst_rsync_wan" ] && WHOLE_FILE_OPT="" \
|
|| WHOLE_FILE_OPT="--whole-file"
|
The functionality is there, but we are missing the link.
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Bug
Major
MDEV-4221
Either add wsrep_sst_rsync_wan to the release, or remove it from documentation
MDEV-28236 Allow wsrep_sst_rsync to pass options to rsync binary via [sst] settings
Instead of removing the documentation option, I think is better create the needed link, because the functionality/code needed is just there.