Hi ,
In one of your xen guest ,one application is running and is consuming much
memory,
so almost every alternate day they ask to reboot the server.
One of our admin suggested to use the following command.
free && sync && echo 3 > /proc/sys/vm/drop_caches && free
I was googling and there are mixed comments. Some are advising it is good ,
some are not.
I was thinking that rather applying 'echo 3' , may be 'echo 1' will be
good.
As,
To free pagecache:
echo 1 > /proc/sys/vm/drop_caches
To free dentries and inodes:
echo 2 > /proc/sys/vm/drop_caches
To free pagecache, dentries and inodes:
echo 3 > /proc/sys/vm/drop_caches
Any advice will be really appreciated. Also do you think when we will execute
the command, before that the application is needed to be stopped.
Thanks in advance.
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