local interval
interval=$(do_facet $facet \
- "$DEBUGFS -c -R dump_mmp $device 2>/dev/null" |
+ "$DEBUGFS -c -R dump_mmp $device 2>$TMP/mmp.debugfs.msg" |
awk 'tolower($0) ~ /update.interval/ { print $NF }')
- [ -z "$interval" ] && interval=5
+ [ -z "$interval" ] && interval=5 &&
+ do_facet $facet cat $TMP/mmp.debugfs.msg &&
+ echo "$facet:$device: assume update interval=$interval" 1>&2 ||
+ echo "$facet:$device: got actual update interval=$interval" 1>&2
echo $interval
}
local interval
interval=$(do_facet $facet \
- "$DEBUGFS -c -R dump_mmp $device 2>/dev/null" |
+ "$DEBUGFS -c -R dump_mmp $device 2>$TMP/mmp.debugfs.msg" |
awk 'tolower($0) ~ /check.interval/ { print $NF }')
- [ -z "$interval" ] && interval=5
+ [ -z "$interval" ] && interval=5 &&
+ do_facet $facet cat $TMP/mmp.debugfs.msg &&
+ echo "$facet:$device: assume check interval=$interval" 1>&2 ||
+ echo "$facet:$device: got actual check interval=$interval" 1>&2
echo $interval
}
return ${PIPESTATUS[0]}
}
+I_ENABLED_MDS=0
+I_ENABLED_OSS=0
+
# Enable the MMP feature on the Lustre server targets.
mmp_init() {
init_vars
exit
fi
- # The MMP feature is automatically enabled by mkfs.lustre for
- # new file system at format time if failover is being used.
- # Otherwise, the Lustre administrator has to manually enable
- # this feature when the file system is unmounted.
-
- local var=${MMP_MDS}failover_HOST
- if [ -z "${!var}" ]; then
- log "Failover is not used on MDS, enabling MMP manually..."
- enable_mmp $MMP_MDS $MMP_MDSDEV || \
- error "failed to enable MMP on $MMP_MDSDEV on $MMP_MDS"
- fi
-
- var=${MMP_OSS}failover_HOST
- if [ -z "${!var}" ]; then
- log "Failover is not used on OSS, enabling MMP manually..."
- enable_mmp $MMP_OSS $MMP_OSTDEV || \
- error "failed to enable MMP on $MMP_OSTDEV on $MMP_OSS"
- fi
-
- # check whether the MMP feature is enabled or not
- mmp_is_enabled $MMP_MDS $MMP_MDSDEV || \
- error "MMP was not enabled on $MMP_MDSDEV on $MMP_MDS"
-
- mmp_is_enabled $MMP_OSS $MMP_OSTDEV || \
- error "MMP was not enabled on $MMP_OSTDEV on $MMP_OSS"
+ mmp_is_enabled $MMP_MDS $MMP_MDSDEV ||
+ {
+ log "MMP is not enabled on MDS, enabling it manually..."
+ enable_mmp $MMP_MDS $MMP_MDSDEV ||
+ error "failed to enable MMP on $MMP_MDSDEV on $MMP_MDS"
+ I_ENABLED_MDS=1
+ }
+
+ mmp_is_enabled $MMP_OSS $MMP_OSTDEV ||
+ {
+ log "MMP is not enabled on OSS, enabling it manually..."
+ enable_mmp $MMP_OSS $MMP_OSTDEV ||
+ error "failed to enable MMP on $MMP_OSTDEV on $MMP_OSS"
+ I_ENABLED_OSS=1
+ }
+
+ # check whether the MMP feature is enabled or not
+ mmp_is_enabled $MMP_MDS $MMP_MDSDEV ||
+ error "MMP was not enabled on $MMP_MDSDEV on $MMP_MDS"
+
+ mmp_is_enabled $MMP_OSS $MMP_OSTDEV ||
+ error "MMP was not enabled on $MMP_OSTDEV on $MMP_OSS"
}
# Disable the MMP feature on the Lustre server targets
-# which did not use failover.
mmp_fini() {
- local var=${MMP_MDS}failover_HOST
- if [ -z "${!var}" ]; then
- log "Failover is not used on MDS, disabling MMP manually..."
- disable_mmp $MMP_MDS $MMP_MDSDEV || \
- error "failed to disable MMP on $MMP_MDSDEV on $MMP_MDS"
- mmp_is_enabled $MMP_MDS $MMP_MDSDEV && \
- error "MMP was not disabled on $MMP_MDSDEV on $MMP_MDS"
- fi
+ if [ $I_ENABLED_MDS -eq 1 ]; then
+ log "Disabling MMP on $MMP_MDSDEV on $MMP_MDS manually..."
+ disable_mmp $MMP_MDS $MMP_MDSDEV ||
+ error "failed to disable MMP on $MMP_MDSDEV on $MMP_MDS"
+ mmp_is_enabled $MMP_MDS $MMP_MDSDEV &&
+ error "MMP was not disabled on $MMP_MDSDEV on $MMP_MDS"
+ fi
- var=${MMP_OSS}failover_HOST
- if [ -z "${!var}" ]; then
- log "Failover is not used on OSS, disabling MMP manually..."
- disable_mmp $MMP_OSS $MMP_OSTDEV || \
- error "failed to disable MMP on $MMP_OSTDEV on $MMP_OSS"
- mmp_is_enabled $MMP_OSS $MMP_OSTDEV && \
- error "MMP was not disabled on $MMP_OSTDEV on $MMP_OSS"
- fi
+ if [ $I_ENABLED_OSS -eq 1 ]; then
+ log "Disabling MMP on $MMP_OSTDEV on $MMP_OSS manually..."
+ disable_mmp $MMP_OSS $MMP_OSTDEV ||
+ error "failed to disable MMP on $MMP_OSTDEV on $MMP_OSS"
+ mmp_is_enabled $MMP_OSS $MMP_OSTDEV &&
+ error "MMP was not disabled on $MMP_OSTDEV on $MMP_OSS"
+ fi
- return 0
+ return 0
}
# Mount the shared target on the failover server after some interval it's