Hi,
The monitor operation of iSCSILogicalUnit is not specific enough in the
regular expression and I got very "nice" fencing going because it was falsely
reporting "failed to stop" resource.
I happened to add primitive lun-build10, while already having lun-build1.
For myself I have narrowed it down to the following fix, but probably a more
appropriate regex has to be applied to these and other commands serving the
same purpose for other iSCSI implementations.
diff --git a/heartbeat/iSCSILogicalUnit b/heartbeat/iSCSILogicalUnit
index 25ee32e..2cee970 100755
--- a/heartbeat/iSCSILogicalUnit
+++ b/heartbeat/iSCSILogicalUnit
@@ -328,7 +328,7 @@ iSCSILogicalUnit_monitor() {
tgt)
# Figure out and set the target ID
TID=`tgtadm --lld iscsi --op show --mode target \
- | sed -ne "s/^Target \([[:digit:]]\+\):
${OCF_RESKEY_target_iqn}/\1/p"`
+ | sed -ne "s/^Target \([[:digit:]]\+\):
${OCF_RESKEY_target_iqn}$/\1/p"`
if [ -z "$TID" ]; then
# Our target is not configured, thus we're not
# running.
@@ -337,7 +337,7 @@ iSCSILogicalUnit_monitor() {
# This only looks for the backing store, but does not test
# for the correct target ID and LUN.
tgtadm --lld iscsi --op show --mode target \
- | grep -E -q "[[:space:]]+Backing store.*: ${OCF_RESKEY_path}"
&& return $OCF_SUCCESS
+ | grep -E -q "[[:space:]]+Backing store.*: ${OCF_RESKEY_path}$"
&& return $OCF_SUCCESS
;;
lio)
configfs_path="/sys/kernel/config/target/iscsi/${OCF_RESKEY_target_iqn}/tpgt_1/lun/lun_${OCF_RESKEY_lun}/${OCF_RESOURCE_INSTANCE}/udev_path"
Regards,
Vadym Chepkov
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