Setting Readahead for MongoDB volume
We are receiving warning in MongoDB related to Readahead of the MongoDB volume
WARNING: Readahead for /var/lib/mongodb/data is set to 4096KB", We suggest setting it to 256KB (512 sectors) or less",
The readhead setting was adjusted by using the command:
blockdev --setra 256 /dev/mapper/vg_os-mongodb
How can this setting be made persistent?
- Red Hat Enterprise Linux OpenStack Platform on RHEL 7
- Satellite 6 on RHEL 7
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