diff options
Diffstat (limited to 'extras/ganesha/ocf/ganesha_grace')
| -rw-r--r-- | extras/ganesha/ocf/ganesha_grace | 141 |
1 files changed, 80 insertions, 61 deletions
diff --git a/extras/ganesha/ocf/ganesha_grace b/extras/ganesha/ocf/ganesha_grace index 75ec16c0fd1..a82c9af417a 100644 --- a/extras/ganesha/ocf/ganesha_grace +++ b/extras/ganesha/ocf/ganesha_grace @@ -36,6 +36,9 @@ else . ${OCF_FUNCTIONS_DIR}/ocf-shellfuncs fi +OCF_RESKEY_grace_active_default="grace-active" +: ${OCF_RESKEY_grace_active=${OCF_RESKEY_grace_active_default}} + ganesha_meta_data() { cat <<END <?xml version="1.0"?> @@ -51,19 +54,25 @@ resource agent for nfs-ganesha. <shortdesc lang="en">Manages the user-space nfs-ganesha NFS server</shortdesc> <parameters> +<parameter name="grace_active"> +<longdesc lang="en">NFS-Ganesha grace active attribute</longdesc> +<shortdesc lang="en">NFS-Ganesha grace active attribute</shortdesc> +<content type="string" default="grace-active" /> +</parameter> </parameters> <actions> <action name="start" timeout="40s" /> <action name="stop" timeout="40s" /> -<action name="status" depth="0" timeout="20s" interval="5s" /> -<action name="monitor" depth="0" timeout="20s" interval="5s" /> +<action name="status" timeout="20s" interval="60s" /> +<action name="monitor" depth="0" timeout="10s" interval="5s" /> +<action name="notify" timeout="10s" /> <action name="meta-data" timeout="20s" /> </actions> </resource-agent> END -return $OCF_SUCCESS +return ${OCF_SUCCESS} } ganesha_grace_usage() { @@ -73,10 +82,10 @@ ganesha_grace_usage() { # Make sure meta-data and usage always succeed case $__OCF_ACTION in meta-data) ganesha_meta_data - exit $OCF_SUCCESS + exit ${OCF_SUCCESS} ;; usage|help) ganesha_usage - exit $OCF_SUCCESS + exit ${OCF_SUCCESS} ;; *) ;; @@ -84,81 +93,89 @@ esac ganesha_grace_start() { - local result="" - local resourcename="" - local deadserver="" - local tmpIFS=${IFS} - local pid_file="/var/run/ganesha.nfsd.pid" - - # RHEL6 /etc/init.d/nfs-ganesha adds "-p /var/run/ganesha.nfsd.pid" - # RHEL7 systemd does not. Would be nicer if all distros used the - # same pid file. - if [ -e /usr/lib/systemd/system/nfs-ganesha.service ]; then - pid_file="/var/run/ganesha.pid" + rc=${OCF_ERR_GENERIC} + ocf_log debug "ganesha_grace_start()" + attr=$(attrd_updater -Q -n ${OCF_RESKEY_grace_active}) + + # Three possibilities: + # 1. There is no attribute at all and attr_updater returns + # a zero length string. This happens when + # ganesha_mon::monitor hasn't run at least once to set + # the attribute. The assumption here is that the system + # is coming up. We pretend, for now, that the node is + # healthy, to allow the system to continue coming up. + # It will cure itself in a few seconds + # 2. There is an attribute, and it has the value "1"; this + # node is healthy. + # 3. There is an attribute, but it has no value or the value + # "0"; this node is not healthy. + + # case 1 + if [[ -z "${attr}" ]]; then + return ${OCF_SUCCESS} fi - # logger "ganesha_grace_start()" - # we're here because somewhere in the cluster one or more - # of the ganesha.nfsds have died, triggering a floating IP - # address to move. Resource constraint location rules ensure - # that this is invoked before the floating IP is moved. - if [ -e ${pid_file} -a \ - -d /proc/$(cat ${pid_file} ) ]; then - # my ganesha.nfsd is still running - # find out which one died? - - pcs status | grep dead_ip-1 | sort > /tmp/.pcs_status - - result=$(diff /var/run/ganesha/pcs_status /tmp/.pcs_status | grep '^>') - if [[ ${result} ]]; then - # logger "ganesha_grace_start(), ${result}" - IFS=$'\n' - for line in ${result}; do - resourcename=$(echo ${line} | cut -f 1 | cut -d ' ' -f 3) - deadserver=${resourcename%"-dead_ip-1"} - - if [[ ${deadserver} ]]; then - # logger "ganesha_grace_start(), ${line}" - # logger "ganesha_grace_start(), dbus-send --print-reply --system --dest=org.ganesha.nfsd /org/ganesha/nfsd/admin org.ganesha.nfsd.admin.grace string:${deadserver}" - dbus-send --print-reply --system --dest=org.ganesha.nfsd /org/ganesha/nfsd/admin org.ganesha.nfsd.admin.grace string:${deadserver} - if [ $? -ne 0 ]; then - logger "warning: dbus-send --print-reply --system --dest=org.ganesha.nfsd /org/ganesha/nfsd/admin org.ganesha.nfsd.admin.grace string:${deadserver} failed" - fi - fi - done - IFS=${tmpIFS} - fi - + # case 2 + if [[ "${attr}" = *"value=\"1\"" ]]; then + return ${OCF_SUCCESS} fi - return $OCF_SUCCESS + + # case 3 + return ${OCF_NOT_RUNNING} } ganesha_grace_stop() { - # logger "ganesha_grace_stop()" - return $OCF_SUCCESS + ocf_log debug "ganesha_grace_stop()" + return ${OCF_SUCCESS} +} + +ganesha_grace_notify() +{ + mode="${OCF_RESKEY_CRM_meta_notify_type}-${OCF_RESKEY_CRM_meta_notify_operation}" + case "$mode" in + post-stop) + ocf_log debug "stop_uname:${OCF_RESKEY_CRM_meta_notify_stop_uname}" + dbus-send --print-reply --system --dest=org.ganesha.nfsd /org/ganesha/nfsd/admin org.ganesha.nfsd.admin.grace string:${OCF_RESKEY_CRM_meta_notify_stop_uname} + if [ $? -ne 0 ]; then + ocf_log info "dbus-send --print-reply --system --dest=org.ganesha.nfsd /org/ganesha/nfsd/admin org.ganesha.nfsd.admin.grace string:${OCF_RESKEY_CRM_meta_notify_stop_uname} failed" + fi + ;; + esac + + return ${OCF_SUCCESS} } ganesha_grace_monitor() { - # logger "ganesha_grace_monitor()" - if [ ! -d /var/run/ganesha ]; then - mkdir -p /var/run/ganesha + rc=${OCF_ERR_GENERIC} + ocf_log debug "monitor" + + attr=$(attrd_updater -Q -n ${OCF_RESKEY_grace_active}) + + # if there is no attribute (yet), maybe it's because + # this RA started before ganesha_mon (nfs-mon) has had + # chance to create it. In which case we'll pretend + # everything is okay this time around + if [[ -z "${attr}" ]]; then + return ${OCF_SUCCESS} + fi + + if [[ "${attr}" = *"value=\"1\"" ]]; then + rc=${OCF_SUCCESS} fi - pcs status | grep dead_ip-1 | sort > /var/run/ganesha/pcs_status - return $OCF_SUCCESS + + return ${rc} } ganesha_grace_validate() { - return $OCF_SUCCESS + return ${OCF_SUCCESS} } ganesha_grace_validate -# logger "ganesha_grace ${OCF_RESOURCE_INSTANCE} $__OCF_ACTION" - # Translate each action into the appropriate function call case $__OCF_ACTION in start) ganesha_grace_start @@ -167,14 +184,16 @@ stop) ganesha_grace_stop ;; status|monitor) ganesha_grace_monitor ;; +notify) ganesha_grace_notify + ;; *) ganesha_grace_usage - exit $OCF_ERR_UNIMPLEMENTED + exit ${OCF_ERR_UNIMPLEMENTED} ;; esac rc=$? # The resource agent may optionally log a debug message -ocf_log debug "${OCF_RESOURCE_INSTANCE} $__OCF_ACTION returned $rc" +ocf_log debug "${OCF_RESOURCE_INSTANCE} ${__OCF_ACTION} returned $rc" exit $rc |