innobackupex \
--defaults-file=/etc/mysql/my.cnf \
--user=$USER \
--password=$PASSWORDMYSQL \
--compact \
--use-memory=$MEM \
--no-timestamp \
$DIRBACKUP1

innobackupex \
--apply-log \
--redo-only \
--compact \
--use-memory=$MEM \
--no-timestamp \
$DIRBACKUP2

...
xtrabackup: Starting InnoDB instance for recovery.
xtrabackup: Using 104857600 bytes for buffer pool (set by --use-memory parameter)
InnoDB: PUNCH HOLE support available
InnoDB: Mutexes and rw_locks use GCC atomic builtins
InnoDB: Uses event mutexes
InnoDB: GCC builtin __atomic_thread_fence() is used for memory barrier
InnoDB: Compressed tables use zlib 1.2.7
InnoDB: Number of pools: 1
InnoDB: Using CPU crc32 instructions
full_backup.sh: line 43: 16556 Killed                  innobackupex --apply-log --redo-only --compact --use-memory=$MEM --no-timestamp $DIRBACKUP2