Gluster users - Mar 2017 - performance.parallel-readdir option, and trusted.glusterfs.dht.linkto - permission denied

I have noticed strange behavior but let start from the begining.
We have 1.8P repo containing 11 nodes based on ubuntu 16.04, and currently
glusterfs 3.10. Gluster was never rebalanced, and probably never will be,
so across the bricks there is many likto files. Gluster serves data over
read-only built-in nfs3, and every data is owned by the same user which is
not root.
I reproduced this issue in smaller environment, and it seems that accessing
file which is linkto, results in cannot access: IO error. It occurs after
switching performance.parallel-readdir, and not from root or owner. Any
other users gets cannot access: IO error.
Debug logs below.

http://pastebin.com/M6R7bppA

BR


--
Andrzej Rzadkowolski
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