geo-rep: Fix rename with existing destination with same gfid

Problem:
   Geo-rep fails to sync the rename properly if destination exists.
It results in source to be remained on slave causing more number of
files on slave. Also heavy rename workload like logrotate caused
lot of ESTALE errors

Cause:
   Geo-rep fails to sync rename if destination exists if creation
of source file also falls into single batch of changelogs being
processed. This is because, after fixing problematic gfids verifying
from master, while re-processing original entries, CREATE also was
re-processed causing more files on slave and rename to be failed.

Solution:
   Entries need to be removed from retrial list after fixing
problematic gfids on slave so that it's not re-created again on slave.
   Also treat ESTALE as EEXIST so that the error is properly handled
verifying the op on master volume.

Backport of:
 > Patch: https://review.gluster.org/22519/
 > Change-Id: I50cf289e06b997adddff0552bf2466d9201dd1f9
 > BUG: 1694820
 > Signed-off-by: Kotresh HR <khiremat@redhat.com>
 > Signed-off-by: Sunny Kumar <sunkumar@redhat.com>

Change-Id: I50cf289e06b997adddff0552bf2466d9201dd1f9
fixes: bz#1709734
Signed-off-by: Kotresh HR <khiremat@redhat.com>

5 files changed, 56 insertions, 0 deletions

diff --git a/tests/00-geo-rep/georep-basic-dr-rsync-arbiter.t b/tests/00-geo-rep/georep-basic-dr-rsync-arbiter.t
index 67ac1678e42..1a55ed2bfa1 100644
--- a/tests/00-geo-rep/georep-basic-dr-rsync-arbiter.t
+++ b/tests/00-geo-rep/georep-basic-dr-rsync-arbiter.t
@@ -203,6 +203,11 @@ EXPECT_WITHIN $GEO_REP_TIMEOUT 0 verify_rsnapshot_data ${slave_mnt}
 TEST gluster volume geo-rep $master $slave config rsync-options "--whole-file"
 TEST "echo sampledata > $master_mnt/rsync_option_test_file"
 
+#rename with existing destination case BUG:1694820
+TEST create_rename_with_existing_destination ${master_mnt}
+#verify rename with existing destination case BUG:1694820
+EXPECT_WITHIN $GEO_REP_TIMEOUT 0 verify_rename_with_existing_destination ${slave_mnt}
+
 #Verify arequal for whole volume
 EXPECT_WITHIN $GEO_REP_TIMEOUT 0 arequal_checksum ${master_mnt} ${slave_mnt}
 
diff --git a/tests/00-geo-rep/georep-basic-dr-rsync.t b/tests/00-geo-rep/georep-basic-dr-rsync.t
index 919c9d924ad..e719e5c3213 100644
--- a/tests/00-geo-rep/georep-basic-dr-rsync.t
+++ b/tests/00-geo-rep/georep-basic-dr-rsync.t
@@ -207,6 +207,11 @@ EXPECT_WITHIN $GEO_REP_TIMEOUT 0 verify_rsnapshot_data ${slave_mnt}
 TEST gluster volume geo-rep $master $slave config rsync-options "--whole-file"
 TEST "echo sampledata > $master_mnt/rsync_option_test_file"
 
+#rename with existing destination case BUG:1694820
+TEST create_rename_with_existing_destination ${master_mnt}
+#verify rename with existing destination case BUG:1694820
+EXPECT_WITHIN $GEO_REP_TIMEOUT 0 verify_rename_with_existing_destination ${slave_mnt}
+
 #Verify arequal for whole volume
 EXPECT_WITHIN $GEO_REP_TIMEOUT 0 arequal_checksum ${master_mnt} ${slave_mnt}
 
diff --git a/tests/00-geo-rep/georep-basic-dr-tarssh-arbiter.t b/tests/00-geo-rep/georep-basic-dr-tarssh-arbiter.t
index 1726d0bb0d1..cb530adbe0e 100644
--- a/tests/00-geo-rep/georep-basic-dr-tarssh-arbiter.t
+++ b/tests/00-geo-rep/georep-basic-dr-tarssh-arbiter.t
@@ -202,6 +202,11 @@ EXPECT_WITHIN $GEO_REP_TIMEOUT 0 verify_symlink_rename_mkdir_data ${slave_mnt}/s
 #rsnapshot usecase
 EXPECT_WITHIN $GEO_REP_TIMEOUT 0 verify_rsnapshot_data ${slave_mnt}
 
+#rename with existing destination case BUG:1694820
+TEST create_rename_with_existing_destination ${master_mnt}
+#verify rename with existing destination case BUG:1694820
+EXPECT_WITHIN $GEO_REP_TIMEOUT 0 verify_rename_with_existing_destination ${slave_mnt}
+
 #Verify arequal for whole volume
 EXPECT_WITHIN $GEO_REP_TIMEOUT 0 arequal_checksum ${master_mnt} ${slave_mnt}
 
diff --git a/tests/00-geo-rep/georep-basic-dr-tarssh.t b/tests/00-geo-rep/georep-basic-dr-tarssh.t
index c5d16ac86b2..9e2f6135751 100644
--- a/tests/00-geo-rep/georep-basic-dr-tarssh.t
+++ b/tests/00-geo-rep/georep-basic-dr-tarssh.t
@@ -202,6 +202,11 @@ EXPECT_WITHIN $GEO_REP_TIMEOUT 0 verify_hardlink_rename_data ${slave_mnt}
 #rsnapshot usecase
 EXPECT_WITHIN $GEO_REP_TIMEOUT 0 verify_rsnapshot_data ${slave_mnt}
 
+#rename with existing destination case BUG:1694820
+TEST create_rename_with_existing_destination ${master_mnt}
+#verify rename with existing destination case BUG:1694820
+EXPECT_WITHIN $GEO_REP_TIMEOUT 0 verify_rename_with_existing_destination ${slave_mnt}
+
 #Verify arequal for whole volume
 EXPECT_WITHIN $GEO_REP_TIMEOUT 0 arequal_checksum ${master_mnt} ${slave_mnt}
 
diff --git a/tests/geo-rep.rc b/tests/geo-rep.rc
index d72312956b3..e357ba8a812 100644
--- a/tests/geo-rep.rc
+++ b/tests/geo-rep.rc
@@ -403,3 +403,39 @@ function check_slave_read_only()
     gluster volume info $1 | grep 'features.read-only: on'
     echo $?
 }
+
+function create_rename_with_existing_destination()
+{
+    dir=$1/rename_with_existing_destination
+    mkdir $dir
+    for i in {1..5}
+    do
+        echo "Data_set$i" > $dir/data_set$i
+        mv $dir/data_set$i $dir/data_set -f
+    done
+}
+
+function verify_rename_with_existing_destination()
+{
+    dir=$1/rename_with_existing_destination
+
+    if [ ! -d $dir ]; then
+        echo 1
+    elif [ ! -f $dir/data_set ]; then
+        echo 2
+    elif [ -f $dir/data_set1 ]; then
+        echo 3
+    elif [ -f $dir/data_set2 ]; then
+        echo 4
+    elif [ -f $dir/data_set3 ]; then
+        echo 5
+    elif [ -f $dir/data_set4 ]; then
+        echo 6
+    elif [ -f $dir/data_set5 ]; then
+        echo 7
+    elif test "XData_set5" != "X$(cat $dir/data_set)"; then
+        echo 8
+    else
+        echo 0
+    fi
+}