[Bugs] [Bug 1434066] New: .trashcan doesn' t show deleted files in distributed replicated cluster

[bugzilla at redhat.com]

https://bugzilla.redhat.com/show_bug.cgi?id=1434066

            Bug ID: 1434066
           Summary: .trashcan doesn't show deleted files in distributed
                    replicated cluster
           Product: GlusterFS
           Version: 3.8
         Component: trash-xlator
          Severity: high
          Assignee: bugs at gluster.org
          Reporter: kompastver at gmail.com
                CC: bugs at gluster.org



Description of problem:
Files are not appear in .trashcan when they were located not in root volume dir
and when glusterfs volume's type is distributed replicated.

Steps to Reproduce:
1. Create distributed replicated volume:
sudo gluster volume create test-volume replica 2 transport tcp
srv1:/raw_gluster_dir srv2:/raw_gluster_dir srv3:/raw_gluster_dir
srv4:/raw_gluster_dir
sudo gluster volume start test-volume

2. Enable trash feature:
user at srv1 ~ $ sudo gluster volume set test-volume features.trash on
volume set: success
user at srv1 ~ $ sudo gluster volume get test-volume all | grep trash
features.trash                          on                                      
features.trash-dir                      .trashcan                               
features.trash-eliminate-path           (null)                                  
features.trash-max-filesize             5MB                                     
features.trash-internal-op              off 

3. mount glusterfs volume:
user at srv1 ~ $ sudo mount -t glusterfs srv1:/test-volume
/mnt/test-glusterfs-volume/

user at srv1 ~ $ ls -al /mnt/test-glusterfs-volume/
total 12
drwxr-xr-x  4 root root 4096 Mar 20 18:34 .
drwxr-xr-x. 4 root root 4096 Mar 20 18:36 ..
drwxr-xr-x  3 root root 4096 Mar 20 18:34 .trashcan

4. Try to delete file in root dir:
user at srv1 ~ $ sudo touch /mnt/test-glusterfs-volume/file_in_root                
user at srv1 ~ $ ls -l /mnt/test-glusterfs-volume/
total 0                                                                         
-rw-r--r-- 1 root root 0 Mar 20 18:38 file_in_root                              
user at srv1 ~ $ sudo rm /mnt/test-glusterfs-volume/file_in_root 

# it's all fine at this step
user at srv1 ~ $ sudo ls -l /mnt/test-glusterfs-volume/.trashcan/
total 4                                                                         
-rw-r--r-- 1 root root    0 Mar 20 18:38 file_in_root_2017-03-20_153859         
drwxr-xr-x 2 root root 4096 Mar 20 18:34 internal_op                            

5. Try to delete files in subdirs:
user at srv1 ~ $ sudo mkdir -p /mnt/test-glusterfs-volume/aa/bb
user at srv1 ~ $ sudo touch /mnt/test-glusterfs-volume/aa/bb/test_file1            
# When there is a single file in subdir all work fine too
# Issue occurs when there are both deleted and undeleted files in subdirs
# That's why we are creating test_file2
user at srv1 ~ $ sudo touch /mnt/test-glusterfs-volume/aa/bb/test_file2

user at srv1 ~ $ sudo rm -f /mnt/test-glusterfs-volume/aa/bb/test_file1            

# test_file1 should be appeared in
/mnt/test-glusterfs-volume/.trashcan/aa/bb/test_file1_*
# but there is no files in mounted volume:
user at srv1 ~ $ sudo ls -l /mnt/test-glusterfs-volume/.trashcan/aa/
total 0

# nevertheless file appeared in 'raw' dir:
user at srv1 ~ $ ls -l /raw_gluster_dir/.trashcan/aa/bb/
total 4                                                                         
-rw-r--r-- 2 root root 0 Mar 20 18:41 test_file1_2017-03-20_154233              


Actual results:
Deleted file is not visible in .trashcan/

Expected results:
Deleted file is available in .trashcan/

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