之前阿裡雲的磁盤空間是200G的，由于業務原因，現在要提升到400G
下面是操作詳情：
[root@localhost /]# umount /data
umount.nfs: /data: device is busy
[root@localhost /]# umount -lf /data
成功！
[root@localhost /]# fdisk /dev/xvdb
WARNING: Re-reading the partition table failed with error 16: Device or resource busy. The kernel still uses the old tab
...... 瞬間整個人都不好了，已經解除安裝了，還有程序調用。。。。。。
[root@iZ25papb7g2Z ~]# fuser -m -v /data
USER PID ACCESS COMMAND
/data: root 1332 F..e. httpd
daemon 1333 F..e. httpd
root 1340 F..e. nginx
www 1341 F..e. nginx ![CDH6中Impala3報錯UDF ERROR: String to Decimal parse failed[圖]](data:image/gif;base64,R0lGODlhAQABAIAAAP///wAAACwAAAAAAQABAAACAkQBADs=)