Description of problem: When I increased the timeout in md-cache translator to 20 on a single export volume with 2 fuse clients (writing from one client and reading from another), the read output was truncated towards the end of file. 

Version-Release number of selected component (if applicable): 3.3.0.qa25


How reproducible: Consistently


Steps to Reproduce:
1. Client 1: echo 'abc' > dot;
2. Client 2: cat dot
3. Client 1: echo 'sdsdsdnasnfsdnmfsgfds' > dot;
4. Client 2: cat dot
  
Actual results:
[root@RHEL6 mnt]# cat dot
sdsds[root@RHEL6 mnt]# cat dot
sdsds[root@RHEL6 mnt]# cat dot
sdsds[root@RHEL6 mnt]# cat dot
sdsds[root@RHEL6 mnt]# cat dot
sdsds[root@RHEL6 mnt]# cat dot
sdsds[root@RHEL6 mnt]# cat dot
sdsds[root@RHEL6 mnt]# cat dot
sdsds[root@RHEL6 mnt]# cat dot
sdsds[root@RHEL6 mnt]# cat dot
sdsds[root@RHEL6 mnt]# cat dot
sdsds[root@RHEL6 mnt]# cat dot
sdsds[root@RHEL6 mnt]# cat dot
sdsds[root@RHEL6 mnt]# cat dot
sdsdsdnasnfsdnmfsgfds
[root@RHEL6 mnt]# cat dot
sdsdsdnasnfsdnmfsgfds


Additional info: All other performance translators on the client side were disabled. 

Client vol file-
volume dist-client-0
    type protocol/client
    option remote-host 10.1.11.184
    option remote-subvolume /dist1
    option transport-type tcp
end-volume

volume dist-md-cache
    type performance/md-cache
    option timeout 30
    subvolumes dist-client-0
end-volume

volume dist
    type debug/io-stats
    option latency-measurement off
    option count-fop-hits off
    subvolumes dist-md-cache
end-volume