Re: User experience issue on btrfs

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On 7/3/20 9:37 AM, Chris Murphy wrote:
To give the nodatacow suggestion a try:
## shutdown the database
# mkdir /var/lib/mysql2
# chattr +C /var/lib/mysql2
# cp /var/lib/mysql/* /var/lib/mysql2/
# rm /var/lib/mysql/
# mv /var/lib/mysql2/ /var/lib/mysql/
## resume operation

To avoid possible issues, I would suggest this order:
# mv /var/lib/mysql/ /var/lib/mysql2/
# mkdir /var/lib/mysql
# chattr +C /var/lib/mysql
# cp -a /var/lib/mysql2/* /var/lib/mysql/
# rm -rf /var/lib/mysql2/
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