Sebastian, can you try the same test without AFR? the reason might be inconsistant mtime being returned by AFR which is being discussed in another thread between Krishna and Li Daobing. Also, we suggest you upgrade to glusterfs--mainline--2.5--patch-628 from the TLA. I discovered the GLFS 2 days ago, and have been since testing it. Good luck with the testing! do reach us for questions. avati