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diff -uNr a/heartbeat/LVM-activate b/heartbeat/LVM-activate
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--- a/heartbeat/LVM-activate 2019-10-08 12:10:11.755991580 +0200
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+++ b/heartbeat/LVM-activate 2019-10-08 12:14:38.388288176 +0200
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@@ -42,6 +42,11 @@
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: ${OCF_FUNCTIONS_DIR=${OCF_ROOT}/lib/heartbeat}
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. ${OCF_FUNCTIONS_DIR}/ocf-shellfuncs
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+# Parameter defaults
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+OCF_RESKEY_partial_activation_default="false"
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+
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+: ${OCF_RESKEY_partial_activation=${OCF_RESKEY_partial_activation_default}}
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+
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# If LV is given, only activate this named LV; otherwise, activate all
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# LVs in the named VG.
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VG=${OCF_RESKEY_vgname}
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@@ -150,6 +155,16 @@
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<content type="string" default="pacemaker" />
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</parameter>
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+<parameter name="partial_activation" unique="0" required="0">
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+<longdesc lang="en">
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+If set, the volume group will be activated partially even with some
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+physical volumes missing. It helps to set to true when using mirrored
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+logical volumes.
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+</longdesc>
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+<shortdesc lang="en">Activate VG partially when missing PVs</shortdesc>
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+<content type="string" default="${OCF_RESKEY_partial_activation_default}" />
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+</parameter>
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+
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</parameters>
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<actions>
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@@ -486,6 +501,25 @@
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exit $OCF_ERR_CONFIGURED
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fi
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+ # Inconsistency might be due to missing physical volumes, which doesn't
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+ # automatically mean we should fail. If partial_activation=true then
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+ # we should let start try to handle it, or if no PVs are listed as
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+ # "unknown device" then another node may have marked a device missing
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+ # where we have access to all of them and can start without issue.
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+ case $(vgs -o attr --noheadings $VG | tr -d ' ') in
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+ ???p??*)
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+ if ! ocf_is_true "$OCF_RESKEY_partial_activation" ; then
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+ # We are missing devices and cannot activate partially
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+ ocf_exit_reason "Volume group [$VG] has devices missing. Consider partial_activation=true to attempt to activate partially"
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+ exit $OCF_ERR_GENERIC
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+ else
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+ # We are missing devices but are allowed to activate partially.
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+ # Assume that caused the vgck failure and carry on
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+ ocf_log warn "Volume group inconsistency detected with missing device(s) and partial_activation enabled. Proceeding with requested action."
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+ fi
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+ ;;
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+ esac
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+
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# Get the access mode from VG metadata and check if it matches the input
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# value. Skip to check "tagging" mode because there's no reliable way to
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# automatically check if "tagging" mode is being used.
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@@ -545,6 +579,10 @@
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do_activate() {
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local activate_opt=$1
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+ if ocf_is_true "$OCF_RESKEY_partial_activation" ; then
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+ activate_opt="${activate_opt} --partial"
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+ fi
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+
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# Only activate the specific LV if it's given
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if [ -n "$LV" ]; then
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ocf_run lvchange $activate_opt ${VG}/${LV}
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