Merge "ceph-init-wrapper use flock instead of flag files"
This commit is contained in:
Zuul
Gerrit Code Review
commit
4b6a275e4f
@ -39,7 +39,6 @@ source /etc/platform/platform.conf
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CEPH_SCRIPT="/etc/init.d/ceph"
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CEPH_FILE="$VOLATILE_PATH/.ceph_started"
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CEPH_RESTARTING_FILE="$VOLATILE_PATH/.ceph_restarting"
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CEPH_GET_MON_STATUS_FILE="$VOLATILE_PATH/.ceph_getting_mon_status"
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CEPH_GET_OSD_STATUS_FILE="$VOLATILE_PATH/.ceph_getting_osd_status"
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CEPH_STATUS_FAILURE_TEXT_FILE="/tmp/ceph_status_failure.txt"
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@ -60,111 +59,97 @@ mkdir -p $DATA_PATH # make sure folder exists
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MONITORING_INTERVAL=15
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TRACE_LOOP_INTERVAL=5
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GET_OSD_STATUS_TIMEOUT=120
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GET_MONITOR_STATUS_TIMEOUT=30
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CEPH_STATUS_TIMEOUT=20
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WAIT_FOR_CMD=1
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MONITOR_COMMAND=0
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OSD_COMMAND=0
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LOCK_CEPH_MON_SERVICE_FILE="$VOLATILE_PATH/.ceph_mon_status"
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LOCK_CEPH_OSD_SERVICE_FILE="$VOLATILE_PATH/.ceph_osd_status"
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LOCK_CEPH_MON_STATUS_FILE="$VOLATILE_PATH/.ceph_mon_service"
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LOCK_CEPH_OSD_STATUS_FILE="$VOLATILE_PATH/.ceph_osd_service"
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# Seconds to wait for ceph status to finish before
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# continuing to execute a service action
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MONITOR_STATUS_TIMEOUT=30
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MAX_STATUS_TIMEOUT=120
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RC=0
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# SM can only pass arguments through environment variable
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# when ARGS is not empty use it to extend command line arguments
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args=("$@")
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if [ ! -z $ARGS ]; then
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IFS=";" read -r -a new_args <<< "$ARGS"
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args+=("${new_args[@]}")
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fi
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check_command_type ()
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with_service_lock ()
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{
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if [[ $# -eq 0 ]]; then
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MONITOR_COMMAND=1
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OSD_COMMAND=1
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elif [[ "$1" == "osd"* ]]; then
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OSD_COMMAND=1
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elif [[ "$1" == "mon"* ]]; then
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MONITOR_COMMAND=1
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else
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exit 1
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fi
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local target="$1"; shift
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[ -z "${target}" ] && target="mon osd"
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}
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# Run in sub-shell so we don't leak file descriptors
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# used for locking service actions
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(
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# Grab service locks
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wlog "-" INFO "Grab service locks"
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[[ "${target}" == *"mon"* ]] && flock ${LOCK_CEPH_MON_SERVICE_FD}
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[[ "${target}" == *"osd"* ]] && flock ${LOCK_CEPH_OSD_SERVICE_FD}
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wait_for_status ()
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{
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local STATUS_TIMEOUT=0
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# For a general "ceph status" command which includes checks
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# for both monitors and OSDS, we use the OSD timeout.
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if [[ $OSD_COMMAND == 1 ]]; then
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STATUS_TIMEOUT=$GET_OSD_STATUS_TIMEOUT
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elif [[ $MONITOR_COMMAND == 1 ]]; then
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STATUS_TIMEOUT=$GET_MONITOR_STATUS_TIMEOUT
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fi
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timeout_expiry=$((${SECONDS} + ${STATUS_TIMEOUT}))
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while [ ${SECONDS} -le ${timeout_expiry} ]; do
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if [[ $MONITOR_COMMAND == 1 ]] && [[ ! -f ${CEPH_GET_MON_STATUS_FILE} ]]; then
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break
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# Try to lock status with a timeout in case status is stuck
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wlog "-" INFO "Lock service status"
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deadline=$((SECONDS + MAX_STATUS_TIMEOUT + 1))
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if [[ "${target}" == *"mon"* ]]; then
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flock --exclusive --timeout ${MONITOR_STATUS_TIMEOUT} ${LOCK_CEPH_MON_STATUS_FD}
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fi
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if [[ "${target}" == *"osd"* ]]; then
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timeout=$((deadline - SECONDS))
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if [[ $timeout -gt 0 ]]; then
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flock --exclusive --timeout ${timeout} ${LOCK_CEPH_OSD_STATUS_FD}
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fi
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fi
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if [[ $OSD_COMMAND == 1 ]] && [[ ! -f ${CEPH_GET_OSD_STATUS_FILE} ]]; then
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break
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fi
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# Close lock file descriptors so they are
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# not inherited by the spawned process then
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# run service action
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wlog "-" INFO "Run service action: $@"
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"$@" {LOCK_CEPH_MON_SERVICE_FD}>&- \
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{LOCK_CEPH_MON_STATUS_FD}>&- \
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{LOCK_CEPH_OSD_SERVICE_FD}>&- \
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{LOCK_CEPH_OSD_STATUS_FD}>&-
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sleep 1
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done
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if [ $timeout -eq 0 ]; then
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wlog "-" "WARN" "Getting status takes more than ${STATUS_TIMEOUT}s, continuing"
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if [[ $MONITOR_COMMAND == 1 ]]; then
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rm -f $CEPH_GET_MON_STATUS_FILE
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fi
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if [[ $OSD_COMMAND == 1 ]]; then
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rm -f $CEPH_GET_OSD_STATUS_FILE
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fi
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fi
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) {LOCK_CEPH_MON_SERVICE_FD}>${LOCK_CEPH_MON_SERVICE_FILE} \
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{LOCK_CEPH_MON_STATUS_FD}>${LOCK_CEPH_MON_STATUS_FILE} \
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{LOCK_CEPH_OSD_SERVICE_FD}>${LOCK_CEPH_OSD_SERVICE_FILE} \
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{LOCK_CEPH_OSD_STATUS_FD}>${LOCK_CEPH_OSD_STATUS_FILE}
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RC=$?
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}
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start ()
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{
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if [ -f ${CEPH_FILE} ]; then
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wlog "-" INFO "Ceph START $1 command received"
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wait_for_status
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${CEPH_SCRIPT} start $1
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wlog "-" INFO "Ceph START $1 command finished."
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RC=$?
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else
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if [ ! -f ${CEPH_FILE} ]; then
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# Ceph is not running on this node, return success
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exit 0
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fi
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wlog "-" INFO "Ceph START $1 command received"
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with_service_lock "$1" ${CEPH_SCRIPT} start $1
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wlog "-" INFO "Ceph START $1 command finished."
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}
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stop ()
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{
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wlog "-" INFO "Ceph STOP $1 command received."
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wait_for_status
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${CEPH_SCRIPT} stop $1
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with_service_lock "$1" ${CEPH_SCRIPT} stop $1
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wlog "-" INFO "Ceph STOP $1 command finished."
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}
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restart ()
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{
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if [ -f ${CEPH_FILE} ]; then
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wlog "-" INFO "Ceph RESTART $1 command received."
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wait_for_status
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touch $CEPH_RESTARTING_FILE
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${CEPH_SCRIPT} restart $1
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rm -f $CEPH_RESTARTING_FILE
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wlog "-" INFO "Ceph RESTART $1 command finished."
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else
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if [ ! -f ${CEPH_FILE} ]; then
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# Ceph is not running on this node, return success
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exit 0
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fi
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wlog "-" INFO "Ceph RESTART $1 command received."
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with_service_lock "$1" ${CEPH_SCRIPT} restart $1
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wlog "-" INFO "Ceph RESTART $1 command finished."
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}
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log_and_restart_blocked_osds ()
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@ -221,6 +206,14 @@ log_and_kill_hung_procs ()
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status ()
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{
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local target="$1" # no shift here
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[ -z "${target}" ] && target="mon osd"
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if [ ! -f ${CEPH_FILE} ]; then
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# Ceph is not running on this node, return success
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exit 0
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fi
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if [[ "$system_type" == "All-in-one" ]] && [[ "$system_mode" != "simplex" ]] && [[ "$1" == "osd" ]]; then
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timeout $CEPH_STATUS_TIMEOUT ceph -s
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if [ "$?" -ne 0 ]; then
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@ -231,111 +224,102 @@ status ()
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fi
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fi
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if [ -f ${CEPH_RESTARTING_FILE} ]; then
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# Ceph is restarting, we don't report state changes on the first pass
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rm -f ${CEPH_RESTARTING_FILE}
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exit 0
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# Report success while ceph mon is running a service action
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# otherwise mark ceph mon status is in progress
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exec {LOCK_CEPH_MON_STATUS_FD}>${LOCK_CEPH_MON_STATUS_FILE}
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if [[ "${target}" == *"mon"* ]]; then
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flock --shared --nonblock ${LOCK_CEPH_MON_SERVICE_FILE} true
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if [[ $? -ne 0 ]]; then
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exit 0
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fi
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# Lock will be released when script exits
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flock --shared ${LOCK_CEPH_MON_STATUS_FD}
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fi
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if [ -f ${CEPH_FILE} ]; then
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# Make sure the script does not 'exit' between here and the 'rm -f' below
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# or the checkpoint file will be left behind
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if [[ $MONITOR_COMMAND == 1 ]]; then
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touch -f ${CEPH_GET_MON_STATUS_FILE}
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# Report success while ceph mon is running a service action
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# otherwise mark ceph osd status is in progress
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exec {LOCK_CEPH_OSD_STATUS_FD}>${LOCK_CEPH_OSD_STATUS_FILE}
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if [[ "${target}" == *"osd"* ]]; then
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flock --shared --nonblock ${LOCK_CEPH_OSD_SERVICE_FILE} true
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if [[ $? -ne 0 ]]; then
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exit 0
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fi
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# Lock will be released when script exits
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flock --shared ${LOCK_CEPH_OSD_STATUS_FD}
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fi
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if [[ $OSD_COMMAND == 1 ]]; then
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touch -f ${CEPH_GET_OSD_STATUS_FILE}
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result=`${CEPH_SCRIPT} status $1 {LOCK_CEPH_MON_STATUS_FD}>&- {LOCK_CEPH_OSD_STATUS_FD}>&-`
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RC=$?
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if [ "$RC" -ne 0 ]; then
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erred_procs=`echo "$result" | sort | uniq | awk ' /not running|dead|failed/ {printf "%s ", $1}' | sed 's/://g' | sed 's/, $//g'`
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hung_procs=`echo "$result" | sort | uniq | awk ' /hung/ {printf "%s ", $1}' | sed 's/://g' | sed 's/, $//g'`
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blocked_ops_procs=`echo "$result" | sort | uniq | awk ' /blocked ops/ {printf "%s ", $1}' | sed 's/://g' | sed 's/, $//g'`
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invalid=0
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host=`hostname`
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if [[ "$system_type" == "All-in-one" ]] && [[ "$system_mode" != "simplex" ]]; then
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# On 2 node configuration we have a floating monitor
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host="controller"
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fi
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result=`${CEPH_SCRIPT} status $1`
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RC=$?
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if [ "$RC" -ne 0 ]; then
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erred_procs=`echo "$result" | sort | uniq | awk ' /not running|dead|failed/ {printf "%s ", $1}' | sed 's/://g' | sed 's/, $//g'`
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hung_procs=`echo "$result" | sort | uniq | awk ' /hung/ {printf "%s ", $1}' | sed 's/://g' | sed 's/, $//g'`
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blocked_ops_procs=`echo "$result" | sort | uniq | awk ' /blocked ops/ {printf "%s ", $1}' | sed 's/://g' | sed 's/, $//g'`
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invalid=0
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host=`hostname`
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if [[ "$system_type" == "All-in-one" ]] && [[ "$system_mode" != "simplex" ]]; then
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# On 2 node configuration we have a floating monitor
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host="controller"
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fi
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for i in $(echo $erred_procs $hung_procs); do
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if [[ "$i" =~ osd.?[0-9]?[0-9]|mon.$host ]]; then
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continue
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else
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invalid=1
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fi
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done
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log_and_restart_blocked_osds $blocked_ops_procs
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log_and_kill_hung_procs $hung_procs
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hung_procs_text=""
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for i in $(echo $hung_procs); do
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hung_procs_text+="$i(process hung) "
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done
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rm -f $CEPH_STATUS_FAILURE_TEXT_FILE
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if [ $invalid -eq 0 ]; then
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text=""
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for i in $erred_procs; do
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text+="$i, "
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done
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for i in $hung_procs; do
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text+="$i (process hang), "
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done
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echo "$text" | tr -d '\n' > $CEPH_STATUS_FAILURE_TEXT_FILE
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for i in $(echo $erred_procs $hung_procs); do
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if [[ "$i" =~ osd.?[0-9]?[0-9]|mon.$host ]]; then
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continue
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else
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echo "$host: '${CEPH_SCRIPT} status $1' result contains invalid process names: $erred_procs"
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echo "Undetermined osd or monitor id" > $CEPH_STATUS_FAILURE_TEXT_FILE
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invalid=1
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fi
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fi
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done
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if [[ $MONITOR_COMMAND == 1 ]]; then
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rm -f ${CEPH_GET_MON_STATUS_FILE}
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fi
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log_and_restart_blocked_osds $blocked_ops_procs
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log_and_kill_hung_procs $hung_procs
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if [[ $OSD_COMMAND == 1 ]]; then
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rm -f ${CEPH_GET_OSD_STATUS_FILE}
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fi
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hung_procs_text=""
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for i in $(echo $hung_procs); do
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hung_procs_text+="$i(process hung) "
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done
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if [[ $RC == 0 ]] && [[ "$1" == "mon" ]] && [[ "$system_type" == "All-in-one" ]] && [[ "$system_mode" != "simplex" ]]; then
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# SM needs exit code != 0 from 'status mon' argument of the init script on
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# standby controller otherwise it thinks that the monitor is running and
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# tries to stop it.
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# '/etc/init.d/ceph status mon' checks the status of monitors configured in
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# /etc/ceph/ceph.conf and if it should be running on current host.
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# If it should not be running it just exits with code 0. This is what
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# happens on the standby controller.
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# When floating monitor is running on active controller /var/lib/ceph/mon of
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# standby is not mounted (Ceph monitor partition is DRBD synced).
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test -e "/var/lib/ceph/mon/ceph-controller"
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if [ "$?" -ne 0 ]; then
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exit 3
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fi
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rm -f $CEPH_STATUS_FAILURE_TEXT_FILE
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if [ $invalid -eq 0 ]; then
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text=""
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for i in $erred_procs; do
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text+="$i, "
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done
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for i in $hung_procs; do
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text+="$i (process hang), "
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done
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echo "$text" | tr -d '\n' > $CEPH_STATUS_FAILURE_TEXT_FILE
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else
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echo "$host: '${CEPH_SCRIPT} status $1' result contains invalid process names: $erred_procs"
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echo "Undetermined osd or monitor id" > $CEPH_STATUS_FAILURE_TEXT_FILE
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fi
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fi
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if [[ $RC == 0 ]] && [[ "$1" == "mon" ]] && [[ "$system_type" == "All-in-one" ]] && [[ "$system_mode" != "simplex" ]]; then
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# SM needs exit code != 0 from 'status mon' argument of the init script on
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# standby controller otherwise it thinks that the monitor is running and
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# tries to stop it.
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# '/etc/init.d/ceph status mon' checks the status of monitors configured in
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# /etc/ceph/ceph.conf and if it should be running on current host.
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# If it should not be running it just exits with code 0. This is what
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# happens on the standby controller.
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# When floating monitor is running on active controller /var/lib/ceph/mon of
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# standby is not mounted (Ceph monitor partition is DRBD synced).
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test -e "/var/lib/ceph/mon/ceph-controller"
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if [ "$?" -ne 0 ]; then
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exit 3
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fi
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else
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# Ceph is not running on this node, return success
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exit 0
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fi
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}
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case "${args[0]}" in
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start)
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check_command_type ${args[1]}
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start ${args[1]}
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;;
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stop)
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check_command_type ${args[1]}
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stop ${args[1]}
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;;
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restart)
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check_command_type ${args[1]}
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restart ${args[1]}
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;;
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status)
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check_command_type ${args[1]}
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status ${args[1]}
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;;
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*)
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