Reduce execution time of bug-1559004-EMLINK-handling.t

This patch reduces the execution time of bug-1559004-EMLINK-handling.t
from ~14 minutes to ~90 seconds. To do so, it creates some fake hard
links directly on the brick instead of creating them through the
volume.

Change-Id: I9715ff1a4eba47574c733d4f28e68f42f56a7d3f
updates: bz#1193929
Signed-off-by: Xavi Hernandez <xhernandez@redhat.com>

1 files changed, 51 insertions, 12 deletions

diff --git a/tests/bugs/index/bug-1559004-EMLINK-handling.t b/tests/bugs/index/bug-1559004-EMLINK-handling.t
index 0bd70a0283f..5596fa56c4c 100644
--- a/tests/bugs/index/bug-1559004-EMLINK-handling.t
+++ b/tests/bugs/index/bug-1559004-EMLINK-handling.t
@@ -4,9 +4,39 @@
 . $(dirname $0)/../../volume.rc
 . $(dirname $0)/../../afr.rc
 
+function create_fake_links() {
+        local dst="$1"
+        local dir="$2"
+        local end=0
+        local start=0
+        local src
+
+        src="$(ls ${dst}/.glusterfs/indices/${dir}/${dir}-* | head -1)"
+        mkdir -p ${dst}/.glusterfs/dummy/${dir}
+        while ln ${src} ${dst}/.glusterfs/dummy/${dir}/link-${end}; do
+                end="$((${end} + 1))"
+        done
+
+        if [[ ${end} -gt 50 ]]; then
+                start="$((${end} - 50))"
+        fi
+        if [[ ${end} -gt 0 ]]; then
+                end="$((${end} - 1))"
+        fi
+
+        for i in $(seq ${start} ${end}); do
+                rm -f ${dst}/.glusterfs/dummy/${dir}/link-${i}
+        done
+}
+
+function count_fake_links() {
+        local dst="$1"
+        local dir="$2"
+
+        echo "$(find ${dst}/.glusterfs/dummy/${dir}/ -name "link-*" | wc -l)"
+}
+
 cleanup
-TESTS_EXPECTED_IN_LOOP=30
-SCRIPT_TIMEOUT=1800
 
 TEST glusterd
 TEST pidof glusterd
@@ -32,21 +62,30 @@ TEST mount -t ext4 -o loop $B0/ext4-3 $B0/ext43
 TEST $CLI volume create $V0 replica 3 $H0:$B0/ext4{1,2,3}
 TEST $CLI volume start $V0
 TEST $CLI volume heal $V0 granular-entry-heal enable
-TEST $GFS --volfile-id=$V0 --volfile-server=$H0 $M0;
+TEST $GFS --volfile-id=$V0 --volfile-server=$H0 $M0
 TEST kill_brick $V0 $H0 $B0/ext41
-for i in {1..15}
-do
-        TEST_IN_LOOP mkdir $M0/d${i}
-        TEST_IN_LOOP touch $M0/d${i}/{1..5000}
-done
+
+# Make sure indices exist and are initialized
+TEST touch $M0/dummy
+
+# Create enough hard links on bricks to make it fail faster. This is much
+# faster than creating ~70000 files on a volume.
+create_fake_links $B0/ext42 xattrop &
+create_fake_links $B0/ext42 entry-changes &
+wait
+count_xattrop="$(count_fake_links $B0/ext42 xattrop)"
+count_entry="$(count_fake_links $B0/ext42 entry-changes)"
+
+TEST mkdir $M0/d{1..10}
+TEST touch $M0/d{1..10}/{1..10}
 
 #On ext4 max number of hardlinks is ~65k, so there should be 2 base index files
 EXPECT "^2$" echo $(ls $B0/ext42/.glusterfs/indices/xattrop | grep xattrop | wc -l)
 EXPECT "^2$" echo $(ls $B0/ext42/.glusterfs/indices/entry-changes | grep entry-changes | wc -l)
 
-#Number of hardlinks: 75000 for files, 15 for dirs and 2 for base-indices
-#and root-dir for xattrop
-EXPECT "75018" echo $(ls -l $B0/ext42/.glusterfs/indices/xattrop | grep xattrop | awk '{sum+=$2} END{print sum}')
-EXPECT "75017" echo $(ls -l $B0/ext42/.glusterfs/indices/entry-changes | grep entry-changes | awk '{sum+=$2} END{print sum}')
+#Number of hardlinks: count_xattrop/count_entry for fake links, 101 for files,
+# 10 for dirs and 2 for base-indices and root-dir for xattrop
+EXPECT "$((${count_xattrop} + 114))" echo $(ls -l $B0/ext42/.glusterfs/indices/xattrop | grep xattrop | awk '{sum+=$2} END{print sum}')
+EXPECT "$((${count_entry} + 113))" echo $(ls -l $B0/ext42/.glusterfs/indices/entry-changes | grep entry-changes | awk '{sum+=$2} END{print sum}')
 
 cleanup