1 files changed, 63 insertions, 0 deletions
diff --git a/tests/bugs/shard/bug-1605056.t b/tests/bugs/shard/bug-1605056.t
new file mode 100644
index 00000000000..c2329ea79f8
--- /dev/null
+++ b/tests/bugs/shard/bug-1605056.t
@@ -0,0 +1,63 @@
+#!/bin/bash
+
+. $(dirname $0)/../../include.rc
+. $(dirname $0)/../../volume.rc
+
+SHARD_COUNT_TIME=5
+
+cleanup
+
+TEST glusterd
+TEST pidof glusterd
+TEST $CLI volume create $V0 replica 3 $H0:$B0/${V0}{0,1,2}
+TEST $CLI volume set $V0 features.shard on
+TEST $CLI volume set $V0 features.shard-block-size 4MB
+TEST $CLI volume set $V0 features.shard-lru-limit 25
+TEST $CLI volume set $V0 performance.write-behind off
+
+TEST $CLI volume start $V0
+
+TEST $GFS --volfile-id=$V0 --volfile-server=$H0 $M0
+TEST $GFS --volfile-id=$V0 --volfile-server=$H0 $M1
+
+# Perform a write that would cause 25 shards to be created under .shard
+TEST dd if=/dev/zero of=$M0/foo bs=1M count=104
+
+# Read the file from $M1, indirectly filling up the lru list.
+TEST `cat $M1/foo > /dev/null`
+statedump=$(generate_mount_statedump $V0 $M1)
+sleep 1
+EXPECT "25" echo $(grep "inode-count" $statedump | cut -f2 -d'=' | tail -1)
+rm -f $statedump
+
+# Delete foo from $M0.
+TEST unlink $M0/foo
+
+# Send stat on foo from $M1 to force $M1 to "forget" inode associated with foo.
+# Now the ghost shards associated with "foo" are still in lru list of $M1.
+TEST ! stat $M1/foo
+
+# Let's force the ghost shards of "foo" out of lru list by looking up more shards
+# through I/O on a file named "bar" from $M1. This should crash if the base inode
+# had been destroyed by now.
+
+TEST dd if=/dev/zero of=$M1/bar bs=1M count=104
+
+###############################################
+#### Now for some inode ref-leak tests ... ####
+###############################################
+
+# Expect there to be 29 active inodes - 26 belonging to "bar", 1 for .shard,
+# 1 for .shard/remove_me and 1 for '/'
+EXPECT_WITHIN $SHARD_COUNT_TIME `expr 26 + 3` get_mount_active_size_value $V0 $M1
+
+TEST rm -f $M1/bar
+EXPECT_WITHIN $SHARD_COUNT_TIME 3 get_mount_active_size_value $V0 $M1
+
+EXPECT_WITHIN $UMOUNT_TIMEOUT "Y" force_umount $M0
+EXPECT_WITHIN $UMOUNT_TIMEOUT "Y" force_umount $M1
+
+TEST $CLI volume stop $V0
+TEST $CLI volume delete $V0
+
+cleanup