Prepare of partial backup (with --tables option) sporadically fails with following error :
InnoDB: Error: tablespace size stored in header is 4864 pages, but
InnoDB: the sum of data file sizes is only 768 pages
InnoDB: Cannot start InnoDB. The tail of the system tablespace is
test_partial_uncommitted.sh - test which reliably demonstrates the problem in my environment
test_partial_uncommitted.log - corresponding log
my.cnf - config used
partial_uncommitted.test 'identical' mtr test, which DOES NOT demonstrate the problem (for unknown reasons (generated xtrabackup_info and backup-my.cnf are identical to .sh test).
Interesting observation is that all tables are backed up - this should be another bug eventually if not fixed as part of this.