Comment 1 for bug 434486

I managed to cause this error a different way: I was piping the output into gzip, but changed it to pigz (parallel gzip, makes a huge difference to backup speed), however, I'd failed to actually install pigz! innobackupex was thus piping the output into a non-existent program and it caused the same error as this. I don't know if it's reasonable to expect innobackupex to deal with that situation, but it did produce exactly the same error.