A database application requires a maximum shared memory segment (shmmax) of 2GB (2147483648 Bytes).
Which configuration file should be modified, to set this kernel parameter permanently? Please enter the complete path to the file.
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No answer shown.
/etc/sysctl.conf
Or /etc/sysctl.d/ on more recent systems.
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I think answer for this question is:
echo 2148483648 > /proc/sys/kernel/shmmax
or
sysctl -w kernel.shmmax=2148483648
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Which configuration file …
So no. :)
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To determine the maximum size of a shared memory segment, run:
# cat /proc/sys/kernel/shmmax
2147483648
The default shared memory limit for SHMMAX can be changed in the proc file system without reboot:
# echo 2147483648 > /proc/sys/kernel/shmmax
Alternatively, you can use sysctl(8) to change it:
# sysctl -w kernel.shmmax=2147483648
To make a change permanent, add the following line to the file /etc/sysctl.conf (your setting may vary). This file is used during the boot process.
# echo “kernel.shmmax=2147483648” >> /etc/sysctl.conf
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#vim /etc/sysctl.conf
kernel.shmmax=2147483648
:x
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