Comment 3 for bug 977652

This is absolutely not just a documentation bug. This new process requires you to extract the xtrabackup_checkpoints.qp file BEFORE you can run an incremental backup based on the existing full backup. The checkpoints file should clearly NOT be compressed if the innobackupex script doesn't expect it to be compressed.

** the rest of this is not really relevant to this bug, but was addressed by michael above is another issue altogether **

Furthermore, expecting users to loop through and decompress all of the files in a single threaded fashion defeats the purpose of having innobackupex parallelized. If you can write the files to disk in a parallelized way, why not make it so you can restore from disk in a parallel way? It's almost as if the restore process was forgotten about in this case.