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running on mysql/0 unit

$time timeout 120m ionice -c3 mysqldump -u root -p*censored* --opt --all-databases --skip-lock-tables |xz -1 > xxx

mysqldump: [Warning] Using a password on the command line interface can be insecure.

 

real    0m16.557s

user    0m19.180s

sys 0m1.672s

 

running from juju

$ time juju run --unit=mysql/0 'timeout 120m ionice -c3 mysqldump -u root -p*censored* --opt --all-databases --skip-lock-tables|xz -1' > xxx

action terminated

real    0m28.429s

user    0m0.048s

sys 0m0.164s