Issue - Linux file limits

FeatureBase Community may exceed open file limits because:

the database may be split into a large number of files
these files may be open simultaneously.

Possible cause

Maximum file limits may be set incorrectly:

in featurebase.conf
for the current session
for persistent sessions

FeatureBase recommends a minimum of 256K for open file limits on Linux systems.

Solutions

Alter the FeatureBase max-file-count limit

Alter max-file-count

Alter `ulimit` for current session

ulimit affects only the current shell and its child processes. You may need to launch a new shell as root to raise the ulimit to an appropriate value.

Open a CLI then run this command with an appropriate value:

ulimit -n <value>

Verify the change:

ulimit -n

Set a persistent open file limit value

There are four ways to change the open file limit so it persists after reboot.

Open a CLI then edit one or all the following files:

Edit	Parameter to set
`/etc/security/limits.conf`	`nofile`
`/etc/security/limits.d/<username>.conf`	`nofile`
`/etc/susctl.conf`	`fs.file-max` and/or `vm.max_map_count`
`/etc/sysctl.d/*.conf`	`fs.file-max`

Restart your session for the change to take effect.