run_test 59 "Read cancel race on client eviction"
err17935 () {
+ # we assume that all md changes are in the MDT0 changelog
if [ $MDSCOUNT -gt 1 ]; then
error_ignore 17935 $*
else
}
test_60() {
- remote_mds && { skip "remote MDS" && return 0; }
+ MDT0=$($LCTL get_param -n mdc.*.mds_server_uuid | \
+ awk '{gsub(/_UUID/,""); print $1}' | head -1)
NUM_FILES=15000
mkdir -p $DIR/$tdir
- # Enable and clear changelog
- $LCTL conf_param ${mds1_svc}.mdd.changelog=on
- $LCTL set_param -n mdd.*.changelog on
- $LFS changelog_clear $FSNAME 0
+ # Register (and start) changelog
+ USER=$(do_facet $SINGLEMDS lctl --device $MDT0 changelog_register -n)
+ echo "Registered as $MDT0 changelog user $USER"
- # Create NUM_FILES in the background
+ # Generate a large number of changelog entries
createmany -o $DIR/$tdir/$tfile $NUM_FILES
sync
sleep 5
CLIENT_PID=$!
sleep 1
- # Failover the MDS while creates are happening
+ # Failover the MDS while unlinks are happening
facet_failover $SINGLEMDS
# Wait for unlinkmany to finish
wait $CLIENT_PID
- # Check if NUM_FILES create/unlink events were recorded
+ # Check if all the create/unlink events were recorded
# in the changelog
- $LFS changelog $FSNAME >> $DIR/$tdir/changelog
+ $LFS changelog $MDT0 >> $DIR/$tdir/changelog
local cl_count=$(grep UNLNK $DIR/$tdir/changelog | wc -l)
- echo "$cl_count unlinks in changelog"
-
- [ $cl_count -eq $NUM_FILES ] || err17935 "Recorded ${cl_count} unlinks out
-of $NUM_FILES"
-
- # Also make sure we can clear large changelogs
- lctl set_param -n mdd.*.changelog off
- $LFS changelog_clear $FSNAME 0
-
- cl_count=$($LFS changelog $FSNAME | wc -l)
- [ $cl_count -eq 1 ] || error "Changelog not empty: $cl_count entries"
+ echo "$cl_count unlinks in $MDT0 changelog"
+
+ do_facet $SINGLEMDS lctl --device $MDT0 changelog_deregister $USER
+ USERS=$(( $(do_facet $SINGLEMDS lctl get_param -n \
+ mdd.$MDT0.changelog_users | wc -l) - 2 ))
+ if [ $USERS -eq 0 ]; then
+ [ $cl_count -eq $NUM_FILES ] || \
+ err17935 "Recorded ${cl_count} unlinks out of $NUM_FILES"
+ # Also make sure we can clear large changelogs
+ cl_count=$($LFS changelog $FSNAME | wc -l)
+ [ $cl_count -le 2 ] || \
+ error "Changelog not empty: $cl_count entries"
+ else
+ # If there are other users, there may be other unlinks in the log
+ [ $cl_count -ge $NUM_FILES ] || \
+ err17935 "Recorded ${cl_count} unlinks out of $NUM_FILES"
+ echo "$USERS other changelog users; can't verify clear"
+ fi
}
run_test 60 "Add Changelog entries during MDS failover"