Why does my system load increase significantly during the night?
On some Linux® distributions, cron runs the /etc/cron.daily/slocate.cron or /etc/cron.daily/mlocate job every night. These jobs try to index all the files in GPFS, which adds a very large load on the GPFS token manager.
You can exclude all GPFS file
systems by adding gpfs to the excludeFileSytemType list
in this script, or exclude specific GPFS file
systems in the excludeFileSytemType list.
/usr/bin/updatedb -f "excludeFileSystemType" -e "excludeFileSystem"
If indexing GPFS file systems is desired, only one node should run the updatedb command and build the database in a GPFS file system. If the database is built within a GPFS file system, then it is visible on all nodes after one node finishes building it.