Good day to you Pranith, Once again, thank you for your time. Our use case does include a lot of small files and the read performances must not be impacted by a RELATIME-based solution. Even though this option could fix
the RELATIME behavior on GlusterFS, it looks like the impact of the performance could be too great for us. Therefore, we will test the solution, but we will also consider alternative ways to detect usage of the files we serve. Simon From: Pranith Kumar Karampuri [mailto:pkarampu@xxxxxxxxxx]
On 02/06/2016 12:19 AM, Simon Turcotte-Langevin wrote:
This is because of open-behind feature. Disable open-behind with: "gluster volume set <volname> open-behind off". I believe you will see the atime
behavior you want to see with it. This will reduce the performance of small file reads (< 64KB). Instead of one lookup over the network now it will do, lookup + open(This will be sent to both the replica bricks which updates atime) + read (Only one of the
bricks). Let me know if you want any more information.
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