innobackupex version 2.4.11版本备份和还原的改动记录

1：innobackupex version 2.4.11 此版本的备份工具有相关改动，直接把innobackupex 改为xtrabackup进行备份还原了，可以直接使用innobackupex及相关参数备份，但是在还原的时候如果使用innobackupex的话在还原增量备份会报错，信息如下
2：[root@mysql-userconlogin-192 work]# innobackupex --apply-log  2019-12-03_00-00-01_full/ --incremental-dir=2019-12-05_00-00-01_incr/
191205 16:39:03 innobackupex: Starting the apply-log operation

IMPORTANT: Please check that the apply-log run completes successfully.
           At the end of a successful apply-log run innobackupex
           prints "completed OK!".

innobackupex version 2.4.11 based on MySQL server 5.7.19 Linux (x86_64) (revision id: b4e0db5)
incremental backup from 163753991362 is enabled.
xtrabackup: cd to /home/work/2019-12-03_00-00-01_full/
xtrabackup: This target seems to be already prepared.
xtrabackup: error: applying incremental backup needs target prepared with --apply-log-only.

此时需要使用xtrabackup进行还原并且此错误只有在使用增量还原时出现，如果是只是还原全备的情况是没有问题的

3：还原
#先prepare全备
xtrabackup --prepare --apply-log-only --target-dir=/home/zhoujy/xtrabackup/
#再prepare增量备份
xtrabackup --prepare --apply-log-only --target-dir=/home/zhoujy/xtrabackup/ --incremental-dir=/home/zhoujy/xtrabackup1/

4：最后prepare 全备
xtrabackup --prepare --target-dir=/home/zhoujy/xtrabackup/
5：copy
xtrabackup --copy-back --target-dir=2019-12-03_00-00-01_full/
或 move
xtrabackup --move-back --target-dir=2019-12-03_00-00-01_full/
6：赋权
chown -R mysql:mysql /home/work/mysql