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Impact of changing swappiness at runtime
Why did installation of MySQL 5.6 on Ubuntu 14.04 fail?Access Denied for user 'linuxuser'@'localhost' (using password: no)14.04 to 16.04 *KILLED* mysqlCached Memory full in minutesAWS Ubuntu Spectre - instance dying?“cd /ect/mysql/” gives error “-bash: cd /ect/mysql : No such file or directory” when it existsNew NextCloud installation requires change but I'm not sure where to run this line of code
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On one of my aws ec2 m4.10xlarge instance running Ubuntu 16.04 LTS with 160 GB memory, I want to change the swappiness from the default 60 to 10. Does changing this at runtime using
sysctl -w vm.swappniess=10
have any negative impact when executing this command?
I have a production MySQL 5.7 database running on this instance. So while changing the swappiness will there be any micro stalls or any other issues which I should be considering? Is it safe to run this when the database is busy or does it need to be run only during off-hours?
Please suggest.
16.04 mysql aws
asked Oct 2 at 7:41
DebDeb
232 bronze badges
add a comment
|
On one of my aws ec2 m4.10xlarge instance running Ubuntu 16.04 LTS with 160 GB memory, I want to change the swappiness from the default 60 to 10. Does changing this at runtime using
sysctl -w vm.swappniess=10
have any negative impact when executing this command?
I have a production MySQL 5.7 database running on this instance. So while changing the swappiness will there be any micro stalls or any other issues which I should be considering? Is it safe to run this when the database is busy or does it need to be run only during off-hours?
Please suggest.
16.04 mysql aws
asked Oct 2 at 7:41
DebDeb
232 bronze badges
I don't see why changing this system parameter would negatively affect running processes.
– vanadium
Oct 2 at 10:43
Thanks vanadium. Does it need machine reboot?
– Deb
Oct 9 at 7:21
It is a change at run time.
– vanadium
Oct 9 at 15:37
add a comment
|
On one of my aws ec2 m4.10xlarge instance running Ubuntu 16.04 LTS with 160 GB memory, I want to change the swappiness from the default 60 to 10. Does changing this at runtime using
sysctl -w vm.swappniess=10
have any negative impact when executing this command?
I have a production MySQL 5.7 database running on this instance. So while changing the swappiness will there be any micro stalls or any other issues which I should be considering? Is it safe to run this when the database is busy or does it need to be run only during off-hours?
Please suggest.
16.04 mysql aws
asked Oct 2 at 7:41
DebDeb
232 bronze badges
On one of my aws ec2 m4.10xlarge instance running Ubuntu 16.04 LTS with 160 GB memory, I want to change the swappiness from the default 60 to 10. Does changing this at runtime using
sysctl -w vm.swappniess=10
have any negative impact when executing this command?
I have a production MySQL 5.7 database running on this instance. So while changing the swappiness will there be any micro stalls or any other issues which I should be considering? Is it safe to run this when the database is busy or does it need to be run only during off-hours?
Please suggest.
16.04 mysql aws
16.04 mysql aws
asked Oct 2 at 7:41
DebDeb
232 bronze badges
asked Oct 2 at 7:41
DebDeb
232 bronze badges
asked Oct 2 at 7:41
DebDeb
232 bronze badges
asked Oct 2 at 7:41
DebDeb
232 bronze badges
asked Oct 2 at 7:41
DebDeb
232 bronze badges
232 bronze badges
I don't see why changing this system parameter would negatively affect running processes.
– vanadium
Oct 2 at 10:43
Thanks vanadium. Does it need machine reboot?
– Deb
Oct 9 at 7:21
It is a change at run time.
– vanadium
Oct 9 at 15:37
add a comment
|
I don't see why changing this system parameter would negatively affect running processes.
– vanadium
Oct 2 at 10:43
Thanks vanadium. Does it need machine reboot?
– Deb
Oct 9 at 7:21
It is a change at run time.
– vanadium
Oct 9 at 15:37
I don't see why changing this system parameter would negatively affect running processes.
– vanadium
Oct 2 at 10:43
I don't see why changing this system parameter would negatively affect running processes.
– vanadium
Oct 2 at 10:43
Thanks vanadium. Does it need machine reboot?
– Deb
Oct 9 at 7:21
Thanks vanadium. Does it need machine reboot?
– Deb
Oct 9 at 7:21
It is a change at run time.
– vanadium
Oct 9 at 15:37
It is a change at run time.
– vanadium
Oct 9 at 15:37
add a comment
|
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I don't see why changing this system parameter would negatively affect running processes.
– vanadium
Oct 2 at 10:43
Thanks vanadium. Does it need machine reboot?
– Deb
Oct 9 at 7:21
It is a change at run time.
– vanadium
Oct 9 at 15:37