[#LU-11381] sanity-flr test 201 hangs

Test 201 was added to sanity-flr with the patch https://review.whamcloud.com/#/c/29097/. In that same patch test 201 was added to the ALWAYS_EXCEPT list. Bobijam says test 201 is “… a data mover watcher example monitoring FLR file change and resync the changed file and will not quit the loop.”

== sanity-flr test 201: FLR data mover =============================================================== 21:23:44 (1536960224)
CMD: trevis-47vm12 /usr/sbin/lctl --device lustre-MDT0000 changelog_register -n
Starting client: trevis-47vm9.trevis.whamcloud.com:  -o user_xattr,flock trevis-47vm12@tcp:/lustre /mnt/lustre2
CMD: trevis-47vm9.trevis.whamcloud.com mkdir -p /mnt/lustre2
CMD: trevis-47vm9.trevis.whamcloud.com mount -t lustre -o user_xattr,flock trevis-47vm12@tcp:/lustre /mnt/lustre2

2098 test_201() {
2099         local delay=${RESYNC_DELAY:-5}
2100 
2101         MDT0=$($LCTL get_param -n mdc.*.mds_server_uuid |
2102                awk '{ gsub(/_UUID/,""); print $1 }' | head -n1)
2103 
2104         trap cleanup_test_201 EXIT
2105 
2106         CL_USER=$(do_facet $SINGLEMDS $LCTL --device $MDT0 \
2107                         changelog_register -n)
2108 
2109         mkdir -p $MOUNT2 && mount_client $MOUNT2
2110 
2111         local index=0
2112         while :; do
2113                 local log=$($LFS changelog $MDT0 $index | grep FLRW)
2114                 [ -z "$log" ] && { sleep 1; continue; }
2115 
2116                 index=$(echo $log | awk '{print $1}')
2117                 local ts=$(date -d "$(echo $log | awk '{print $3}')" "+%s" -u)
2118                 local fid=$(echo $log | awk '{print $6}' | sed -e 's/t=//')
2119                 local file=$($LFS fid2path $MOUNT2 $fid 2> /dev/null)
2120 
2121                 ((++index))
2122                 [ -z "$file" ] && continue
2123 
2124                 local now=$(date +%s)
2125 
2126                 echo "file: $file $fid was modified at $ts, now: $now, " \
2127                      "will be resynced at $((ts+delay))"
2128 
2129                 [ $now -lt $((ts + delay)) ] && sleep $((ts + delay - now))
2130 
2131                 mirror_io resync $file
2132                 echo "$file resync done"
2133         done
2134 
2135         cleanup_test_201
2136 }
2137 run_test 201 "FLR data mover"

[LU-11381] sanity-flr test 201 hangs Created: 14/Sep/18 Updated: 05/Oct/18
Status:	Open
Project:	Lustre
Component/s:	None
Affects Version/s:	Lustre 2.12.0
Fix Version/s:	None

[LU-11381] sanity-flr test 201 hangs Created: 14/Sep/18 Updated: 05/Oct/18