+# Test of repeat component behavior with OOS/degraded OST
+test_22a() {
+ [ $OSTCOUNT -lt 2 ] && skip "needs >= 2 OSTs"
+ [ "$MDS1_VERSION" -lt $(version_code $SEL_VER) ] &&
+ skip "skipped for lustre < $SEL_VER"
+
+ local comp_file=$DIR/$tdir/$tfile
+ local flg_opts=""
+ local found=""
+
+ test_mkdir -p $DIR/$tdir
+
+ $LFS setstripe -E -1 -c 1 -z 128M $comp_file ||
+ error "Create $comp_file failed"
+
+ local ost_idx1=$($LFS getstripe -I1 -i $comp_file)
+ local ost_name=$(ostname_from_index $ost_idx1)
+
+ # write past end of first component, so it is extended
+ dd if=/dev/zero of=$comp_file bs=1M count=1 seek=130 ||
+ error "dd to extend failed"
+
+ flg_opts="--comp-flags extension"
+ found=$($LFS find --comp-start 256M -E EOF $flg_opts $comp_file | wc -l)
+ [ $found -eq 1 ] || error "Write: second component not found"
+
+ # degrade OST for component 1
+ do_facet ost$((ost_idx1+1)) $LCTL set_param -n \
+ obdfilter.$ost_name.degraded=1
+ # sleep to guarantee we see the degradation
+ sleep_maxage
+
+ # un-degrade on exit
+ stack_trap "do_facet ost$((ost_idx1+1)) $LCTL set_param -n \
+ obdfilter.$ost_name.degraded=0; sleep_maxage" EXIT
+
+ replay_barrier $SINGLEMDS
+
+ # seek past the end of current comp & write, should cause a new comp
+ # to be created (ie repeat previous comp)
+ dd if=/dev/zero of=$comp_file bs=1M count=1 seek=300 ||
+ error "dd to repeat failed"
+
+ local ost_idx2=$($LFS getstripe -I2 -i $comp_file)
+
+ [ $ost_idx1 -eq $ost_idx2 ] && error "$ost_idx1 == $ost_idx2"
+
+ flg_opts="--comp-flags init"
+ found=$($LFS find --comp-start 256M $flg_opts $comp_file | wc -l)
+ [ $found -eq 1 ] || error "Write: second component not found"
+
+ flg_opts="--comp-flags extension"
+ found=$($LFS find --comp-start 384M -E EOF $flg_opts $comp_file | wc -l)
+ [ $found -eq 1 ] || error "Write: extension component not found"
+
+ fail $SINGLEMDS
+
+ local ost_idx2_2=$($LFS getstripe -I2 -i $comp_file)
+ [ $ost_idx2_2 -ne $ost_idx2 ] && error "$ost_idx2_2 != $ost_idx2"
+
+ flg_opts="--comp-flags init"
+ found=$($LFS find --comp-start 256M $flg_opts $comp_file | wc -l)
+ [ $found -eq 1 ] || error "Failover: second component not found"
+
+ flg_opts="--comp-flags extension"
+ found=$($LFS find --comp-start 384M -E EOF $flg_opts $comp_file | wc -l)
+ [ $found -eq 1 ] || error "Failover: extension component not found"
+
+ sel_layout_sanity $comp_file 3
+}
+run_test 22a "Test repeat component behavior with degraded OST"
+
+# Test repeat behavior with low space
+test_22b() {
+ [ $OSTCOUNT -lt 2 ] && skip "needs >= 2 OSTs"
+ [ "$MDS1_VERSION" -lt $(version_code $SEL_VER) ] &&
+ skip "skipped for lustre < $SEL_VER"
+
+ local comp_file=$DIR/$tdir/$tfile
+ local flg_opts=""
+ local found=""
+
+ test_mkdir -p $DIR/$tdir
+
+ # without this, a previous delete can finish after we check free space
+ wait_delete_completed
+ wait_mds_ost_sync
+
+ $LFS setstripe -E -1 -c 1 -z 128M \
+ $comp_file || error "Create $comp_file failed"
+
+ # write past end of first component, so it is extended
+ dd if=/dev/zero of=$comp_file bs=1M count=1 seek=130 ||
+ error "dd to extend failed"
+
+ flg_opts="--comp-flags extension"
+ found=$($LFS find --comp-start 256M -E EOF $flg_opts $comp_file | wc -l)
+ [ $found -eq 1 ] || error "Write: Second component not found"
+
+ # set our OST low on space
+ local ost_idx1=$($LFS getstripe -I1 -i $comp_file)
+ local wms=$(ost_watermarks_set_low_space $ost_idx1 | grep "watermarks")
+
+ stack_trap "ost_watermarks_clear_enospc $tfile $ost_idx1 $wms" EXIT
+
+ # Write past end of current space, fail to extend, causing repeat
+ dd if=/dev/zero of=$comp_file bs=1M count=1 seek=300 ||
+ error "dd to repeat failed"
+
+ $LFS getstripe $comp_file
+
+ local ost_idx2=$($LFS getstripe -I2 -i $comp_file)
+
+ [ $ost_idx1 -eq $ost_idx2 ] && error "$ost_idx1 == $ost_idx2"
+
+ flg_opts="--comp-flags init"
+ found=$($LFS find --comp-start 256M $flg_opts $comp_file | wc -l)
+ [ $found -eq 1 ] || error "Write: Second component not found"
+
+ flg_opts="--comp-flags extension"
+ found=$($LFS find --comp-start 384M -E EOF $flg_opts $comp_file | wc -l)
+ [ $found -eq 1 ] || error "Write: Extension component not found"
+
+ sel_layout_sanity $comp_file 3
+}
+run_test 22b "Test simple 'out of space' condition with repeat"
+
+# This tests both "repeat" and "extend in place when repeat fails" aspects
+# of repeating components
+test_22c() {
+ [ $OSTCOUNT -lt 2 ] && skip "needs >= 2 OSTs"
+ [ "$MDS1_VERSION" -lt $(version_code $SEL_VER) ] &&
+ skip "skipped for lustre < $SEL_VER"
+
+ local comp_file=$DIR/$tdir/$tfile
+ local flg_opts=""
+ local found=""
+
+ test_mkdir -p $DIR/$tdir
+
+ # pool is used to limit available OSTs to 0 and 1, so we can set all
+ # available OSTs out of space
+ pool_add $TESTNAME || error "Pool creation failed"
+ pool_add_targets $TESTNAME 0 1 || error "Pool add targets failed"
+
+ # without this, a previous delete can finish after we check free space
+ wait_delete_completed
+ wait_mds_ost_sync
+
+ $LFS setstripe -E -1 -z 64M -c 1 -p "$TESTNAME" $comp_file || \
+ error "Create $comp_file failed"
+
+ # write past end of first component, so it is extended
+ dd if=/dev/zero of=$comp_file bs=1M count=1 seek=80 conv=notrunc ||
+ error "dd to extend failed"
+
+ $LFS getstripe $comp_file
+
+ flg_opts="--comp-flags extension"
+ found=$($LFS find --comp-start 128M -E EOF $flg_opts $comp_file | wc -l)
+ [ $found -eq 1 ] || error "Write: second component not found"
+
+ # set our OST out of space
+ local ost_idx1=$($LFS getstripe -I1 -i $comp_file)
+ local wms=$(ost_watermarks_set_enospc $tfile $ost_idx1 |
+ grep "watermarks")
+ stack_trap "ost_watermarks_clear_enospc $tfile $ost_idx1 $wms" EXIT
+
+ # This should create a repeat component on a new OST
+ dd if=/dev/zero of=$comp_file bs=1M count=1 seek=180 conv=notrunc ||
+ error "dd to repeat failed"
+
+ $LFS getstripe $comp_file
+
+ local comp_cnt=$($LFS getstripe --component-count $comp_file)
+ [ $comp_cnt -ne 3 ] && error "component count: $comp_cnt, should be 3"
+
+ # New second component should be on a different OST
+ local ost_idx2=$($LFS getstripe --comp-start=128m \
+ --comp-end=192m --comp-flags=init -i $comp_file)
+
+ [ $ost_idx1 -eq $ost_idx2 ] && error "2nd comp: same OST $ost_idx1"
+
+ local wms2=$(ost_watermarks_set_enospc $tfile $ost_idx2 |
+ grep "watermarks")
+ stack_trap "ost_watermarks_clear_enospc $tfile $ost_idx2 $wms2" EXIT
+
+ # now that the second OST is out of space (as is the first OST), we
+ # attempt to extend. This should result in an extension of the
+ # existing component, rather than a new component.
+ dd if=/dev/zero of=$comp_file bs=1M count=1 seek=240 conv=notrunc ||
+ error "dd for forced extension failed"
+
+ $LFS getstripe $comp_file
+
+ # clear out of space on first OST
+ ost_watermarks_clear_enospc $tfile $ost_idx1 $wms
+
+ # finally, now that the first OST has space again, we attempt to
+ # extend one last time. This should create a new component on the
+ # first OST
+ dd if=/dev/zero of=$comp_file bs=1M count=1 seek=300 conv=notrunc ||
+ error "dd for repeat on first OST failed"
+
+ $LFS getstripe $comp_file
+
+ flg_opts="--comp-flags init"
+ found=$($LFS find --comp-start 128M $flg_opts $comp_file | wc -l)
+ [ $found -eq 1 ] || error "Write: second component not found"
+
+ flg_opts="--comp-flags init"
+ found=$($LFS find --comp-start 256M $flg_opts $comp_file | wc -l)
+ [ $found -eq 1 ] || error "Write: third component not found"
+
+ flg_opts="--comp-flags extension"
+ found=$($LFS find --comp-start 320M -E EOF $flg_opts $comp_file | wc -l)
+ [ $found -eq 1 ] || error "Write: extension component not found"
+
+ sel_layout_sanity $comp_file 4
+}
+run_test 22c "Test repeat with out of space on > 1 OST"
+
+test_22d_post_check() {
+ local comp_file=$1
+ local name=$2
+ local flg_opts="--comp-flags init"
+ local found=$($LFS find --comp-start 0M -E 128M $flg_opts $comp_file |
+ wc -l)
+ [ $found -eq 1 ] || {
+ $LFS getstripe $comp_file
+ error "$name: second component not found"
+ }
+
+ flg_opts="--comp-flags extension"
+ found=$($LFS find --comp-start 128M -E EOF $flg_opts $comp_file | wc -l)
+ [ $found -eq 1 ] || error "$name: third extension component not found"
+
+ sel_layout_sanity $comp_file 2
+}
+
+test_22d_pre() {
+ local comp_file=$1
+ local wms="$2"
+ local RC
+
+ # write past end of first component
+ dd if=/dev/zero of=$comp_file bs=1M count=1 seek=70
+ RC=$?
+
+ ost_watermarks_clear_enospc $tfile 0 $wms
+ [ $RC -eq 0 ] || error "dd to force extend failed"
+
+ test_22d_post_check $comp_file "Write"
+}
+
+test_22d() {
+ [ $OSTCOUNT -lt 2 ] && skip "needs >= 2 OSTs"
+ [ "$MDS1_VERSION" -lt $(version_code $SEL_VER) ] &&
+ skip "skipped for lustre < $SEL_VER"
+
+ local comp_file=$DIR/$tdir/$tfile
+ local flg_opts=""
+ local found=""
+
+ test_mkdir -p $DIR/$tdir
+
+ # without this, a previous delete can finish after we check free space
+ wait_delete_completed
+ wait_mds_ost_sync
+
+ # Pool allows us to force use of only certain OSTs
+ pool_add $TESTNAME || error "Pool creation failed"
+ pool_add_targets $TESTNAME 0 || error "Pool add targets failed"
+
+ # 1. Fail to extend due to OOS, try to repeat within the same pool,
+ # fail to stripe (again OOS) the 0-length component, remove the
+ # repeated one, force the extension on the original one.
+ $LFS setstripe -E -1 -p $TESTNAME -z 64M $comp_file ||
+ error "Create $comp_file failed"
+
+ replay_barrier $SINGLEMDS
+
+ # set our OST out of space
+ local wms=$(ost_watermarks_set_enospc $tfile 0 | grep "watermarks")
+
+ test_22d_pre $comp_file "$wms"
+ fail $SINGLEMDS
+ test_22d_post_check $comp_file "Failover"
+
+ # 2. repeat with low on space: 0-length repeated component will be
+ # striped, but still fails to be extended; otherwise the same as (1).
+ rm -f $comp_file
+ $LFS setstripe -E -1 -p $TESTNAME -z 64M $comp_file ||
+ error "Create $comp_file failed"
+
+ replay_barrier $SINGLEMDS
+
+ # set our OST low on space
+ local wms=$(ost_watermarks_set_low_space 0 | grep "watermarks")
+
+ test_22d_pre $comp_file "$wms"
+ fail $SINGLEMDS
+ test_22d_post_check $comp_file "Failover"
+}
+run_test 22d "out of/low on space + failed to repeat + forced extension"
+