Description of problem:
AFR volume: change a file in one brick,execute "gluster volume heal afr_vol full"(actuclly,it doesnot work).open this file in the client,prompt "[READ ERRORS]".

Version-Release number of selected component (if applicable):
3.4.1 & 3.3.2

How reproducible:
always and i have test many times.

Steps to Reproduce:
1.create a afr volume: gluster volume create afr_vol replica 3 192.168.8.{80,81,82}:/mnt/sdb1
2.started it: gluster volume start afr_vol
3.change one file in 192.168.8.80:/mnt/sdb1 (just add a row or delete a row)
4.execute heal:gluster volume heal afr_vol full(it doesnot work and you can see from 8.80:/mnt/sdb1)
5.open this file (used 'vim')

Actual results:
prompt "[READ ERRORS]"

Expected results:
open file normally

Additional info:
"volume heal Volume_name full" doesnot work and I have test many times.