Vertica Device mounted with noatime option implication
I am facing some high I/O on my Vertica Cluster recently and is not because of bad query or design is just because of high workload and the business growed a lot and the last months and there are no resources to be added to the running cluster.
With that said i am thinking of some strategies to improve the nodes performance such as :
- alter the devices conf and use the noatime option(stops recording the last file access time when the file is just read).
- thinking of removing the journaling or moving it to another device.
I would like to know the experts opinion on this matter as this would be my last resort to improve a bit my overall cluster performance.
thank you all