1 files changed, 79 insertions, 0 deletions
diff --git a/tests/bugs/shard/zero-flag.t b/tests/bugs/shard/zero-flag.t
new file mode 100644
index 00000000000..dc88ae1c1ca
--- /dev/null
+++ b/tests/bugs/shard/zero-flag.t
@@ -0,0 +1,79 @@
+#!/bin/bash
+
+. $(dirname $0)/../../include.rc
+. $(dirname $0)/../../volume.rc
+. $(dirname $0)/../../fallocate.rc
+
+function file_all_zeroes {
+        < $1 tr -d '\0' | read -n 1 || echo 1
+}
+
+cleanup
+
+require_fallocate -l 1m $M0/file
+require_fallocate -p -l 512k $M0/file && rm -f $M0/file
+require_fallocate -z -l 512k $M0/file && rm -f $M0/file
+
+TEST glusterd
+TEST pidof glusterd
+TEST $CLI volume create $V0 replica 2 $H0:$B0/${V0}{0,1,2,3}
+TEST $CLI volume set $V0 features.shard on
+TEST $CLI volume start $V0
+
+TEST $GFS --volfile-id=$V0 --volfile-server=$H0 $M0
+TEST gcc -Wall -O2 -I api/src -o $(dirname $0)/zero-flag $(dirname $0)/shard-fallocate.c -lgfapi
+
+# On file1 confirm that when fallocate's offset + len > cur file size,
+# the new file size will increase.
+TEST touch $M0/tmp
+TEST `echo 'abcdefghijklmnopqrstuvwxyz' > $M0/tmp`
+TEST touch $M0/file1
+
+gfid_file1=$(get_gfid_string $M0/file1)
+
+TEST $(dirname $0)/zero-flag $H0 $V0 "0" "0" "6291456" /file1
+
+EXPECT '6291456' stat -c %s $M0/file1
+
+# This should ensure /.shard is created on the bricks.
+TEST stat $B0/${V0}0/.shard
+TEST stat $B0/${V0}1/.shard
+TEST stat $B0/${V0}2/.shard
+TEST stat $B0/${V0}3/.shard
+
+EXPECT "2097152" echo `find $B0 -name $gfid_file1.1 | xargs stat -c %s`
+EXPECT "1" file_all_zeroes $M0/file1
+
+
+# On file2 confirm that fallocate to already allocated region of the
+# file does not change the content of the file.
+TEST truncate -s 6M $M0/file2
+TEST dd if=$M0/tmp of=$M0/file2 bs=1 seek=3145728 count=26 conv=notrunc
+md5sum_file2=$(md5sum $M0/file2 | awk '{print $1}')
+
+TEST $(dirname $0)/zero-flag $H0 $V0 "0" "3145728" "26" /file2
+
+EXPECT '6291456' stat -c %s $M0/file2
+EXPECT "$md5sum_file2" echo `md5sum $M0/file2 | awk '{print $1}'`
+
+# On file3 confirm that fallocate to a region of the file that consists
+#of holes creates a new shard in its place, fallocates it and there is no
+#change in the file content seen by the application.
+TEST touch $M0/file3
+
+gfid_file3=$(get_gfid_string $M0/file3)
+
+TEST dd if=$M0/tmp of=$M0/file3 bs=1 seek=9437184 count=26 conv=notrunc
+TEST ! stat $B0/$V0*/.shard/$gfid_file3.1
+TEST   stat $B0/$V0*/.shard/$gfid_file3.2
+md5sum_file3=$(md5sum $M0/file3 | awk '{print $1}')
+EXPECT "1048602" echo `find $B0 -name $gfid_file3.2 | xargs stat -c %s`
+
+TEST $(dirname $0)/zero-flag $H0 $V0 "0" "5242880" "1048576" /file3
+EXPECT "$md5sum_file3" echo `md5sum $M0/file3 | awk '{print $1}'`
+
+TEST umount $M0
+TEST $CLI volume stop $V0
+TEST $CLI volume delete $V0
+rm -f $(dirname $0)/zero-flag
+cleanup