Question & Answer
Question
How can I increase the maximum number of open files on the Linux host?
Answer
You can increase the maximum number of open files on the Linux host by setting a new value in the kernel variable file, /proc/sys/fs/file-max.
As the root user, enter the following command:
# sysctl -w fs.file-max=262144
This command forces the limit to 262144 files which is four times the default setting. (The default setting is appropriate for many environments.)
To set this value to persist a host reboot, you must make the change in the /etc/sysctl.conf file.
1. Log in as root or sudo to root user.
2. Open the file using a text editor such as vi.
# vi /etc/sysctl.conf
3. Append a configuration directive as follows:
fs.file-max = 262144
4. Save and close the file.
5. To make the change take effect, you must do one of the following:
- Log out and then log back in
- Or, run the following command:
# sysctl -p
6. To verify your settings, run the following command:
# cat /proc/sys/fs/file-max
Historical Number
NZ127173
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Document Information
More support for:
IBM PureData System
Software version:
1.0.0
Document number:
461777
Modified date:
17 October 2019
UID
swg21569422