lmc - lustre configurtion data manager
Basic plan for lmc usage:
- lmc --output config.xml --node nodename nid nettype [port=2346]
- lmc --merge config.xml --lov lovname stripsize stripeoffset
- lmc --merge config.xml --ost /dev/name nodename lovname [size=9999]
- lmc --merge config.xml --mtpt /mnt/lustre lovname nodename
+# create nodes
+./lmc --output config.xml --node server --net server1 tcp
+./lmc --merge config.xml --node client --net client1 tcp
+
+# configure server
+./lmc --merge config.xml --node server --mds /tmp/mds1
+./lmc --merge config.xml --lov lov1 111 222 333
+./lmc --merge config.xml --node server --lov lov1 --ost /dev/name [size=9999]
+
+# create client config
+./lmc --merge config.xml --node client --mtpt /mnt/lustre MDC_server lov1
+
"""
import sys, getopt, string
def usage():
print """usage: lmc [--node --ost | --mtpt | --lov] args
Commands:
---node node_name hostname nettype [port]
- Node_name is used to refer to this node during the configure process.
+--node node_name
+ Node_name by itself it will create a new node. When used with other
+ commands it specifies the node to modify
+
+--net hostname nettype [port, recv_buf, send_buf]
Nettype is either tcp, elan, or gm.
+ Requires a node argument
---lov lov_name mdc_name stripe_sz stripe_off pattern
- Creates a logical volume
+--lov lov_name [mdc_name stripe_sz stripe_off pattern]
+ Creates a logical volume
+ When used with other commands, it specifics the lov to modify
---mds node_name device [size]
+--mds device [size]
+ Create a MDS using the device
+ Requires --node
---ost device node_name lov_name [size]
+--ost device [size]
Creates an OBD/OST/OSC configuration triplet for a new device.
When used on "host", the device will be initialized and the OST
will be enabled. On client nodes, the OSC will be avaiable.
- If lov_name is used, this device is added to lov.
+ Requires --node
+ If --lov lov_name is used, this device is added to lov.
---mtpt node_name mds_name lov_name /mnt/point
+--mtpt /mnt/point mdc_name lov_name|osc_name
Creates a client mount point.
+ Requires --node
Options:
--merge="xml file" Add the new objects to an existing file
else:
error("No devices element found for LOV:", lov)
+def node_add_mnt(gen, node, mnt_uuid):
+ node.appendChild(gen.ref("mountpoint", mnt_uuid))
+
+def node_add_mds(gen, node, mds_uuid):
+ node.appendChild(gen.ref("mds", mds_uuid))
+
#
# Create a new obd, osc, and ost. Add them to the DOM.
#
def add_ost(gen, lustre, options, args):
- if len(args) < 3:
+ if len(args) < 1:
usage()
+ if options.has_key('node'):
+ node_name = options['node']
+ else:
+ error("--ost requires a --node argument")
+
+ if options.has_key('lov'):
+ lovname = options['lov']
+ else:
+ lovname = ''
+
devname = args[0]
- node_name = args[1]
- lovname = args[2]
- if len(args) > 3:
- size = args[3]
+ if len(args) > 1:
+ size = args[1]
else:
size = 0
- obdname = new_name(node_name+"_" + "obd")
- oscname = new_name(node_name+"_"+"osc")
- ostname = new_name(node_name+"_"+"ost")
+ obdname = new_name('OBD_'+ node_name)
+ oscname = new_name('OSC_'+ node_name)
+ ostname = new_name('OST_'+ node_name)
obd_uuid = get_uuid(obdname)
ost_uuid = get_uuid(ostname)
osc_uuid = get_uuid(oscname)
if not net_uuid:
error("NODE: ", node_name, "not found")
- lov = findByName(lustre, lovname, "lov")
- if not lov:
- error("LOV:", lovname, "not found.")
-
obd = gen.obd(obdname, obd_uuid, "extN", devname, "no", size)
ost = gen.ost(ostname, ost_uuid, obd_uuid, net_uuid)
osc = gen.osc(oscname, osc_uuid, obd_uuid, ost_uuid)
- lov_add_osc(gen, lov, osc_uuid)
+ if lovname:
+ lov = findByName(lustre, lovname, "lov")
+ if not lov:
+ error("LOV:", lovname, "not found.")
+ lov_add_osc(gen, lov, osc_uuid)
+
lustre.appendChild(obd)
lustre.appendChild(osc)
lustre.appendChild(ost)
-def add_node(gen, lustre, options, args):
+def add_net(gen, lustre, options, args):
""" create a node with a network config """
- if len(args) < 3:
+ if len(args) < 2:
usage()
- name = args[0]
- nid = args[1]
- nettype = args[2]
+ node_name = options['node']
+ nid = args[0]
+ net_type = args[1]
- if nettype == 'tcp':
- if len(args) > 3:
- port = int(args[3])
+ if net_type == 'tcp':
+ if len(args) > 2:
+ port = int(args[2])
else:
port = DEFAULT_PORT
-
- elif nettype in ('elan', 'gm'):
+ # add send, recv buffer size here
+ elif net_type in ('elan', 'gm'):
port = 0
else:
- print "Unknown nettype: ", nettype
+ print "Unknown net_type: ", net_type
sys.exit(2)
- uuid = get_uuid(name)
- node = gen.node(name, uuid)
- net_name = name+"_net"
+ ret = findByName(lustre, node_name, "node")
+ if not ret:
+ uuid = get_uuid(node_name)
+ node = gen.node(node_name, uuid)
+ else:
+ node = ret
+ net_name = new_name('NET_'+ node_name +'_'+ net_type)
net_uuid = get_uuid(net_name)
- node.appendChild(gen.network(net_name, net_uuid, nid, nettype, port))
+ node.appendChild(gen.network(net_name, net_uuid, nid, net_type, port))
+ lustre.appendChild(node)
+
+def add_node(gen, lustre, options, args):
+ """ create a node with a network config """
+ if len(args) > 1:
+ usage()
+
+ node_name = options['node']
+
+ ret = findByName(lustre, node_name, "node")
+ if ret:
+ print "Node:", node_name, "exists."
+ return
+ uuid = get_uuid(node_name)
+ node = gen.node(node_name, uuid)
lustre.appendChild(node)
def add_lov(gen, lustre, options, args):
""" create a lov """
- if len(args) < 4:
+ if len(args) < 3:
usage()
- name = args[0]
- stripe_sz = args[1]
- stripe_off = args[2]
- pattern = args[3]
+ name = options['lov']
+ stripe_sz = args[0]
+ stripe_off = args[1]
+ pattern = args[2]
ret = findByName(lustre, name, "lov")
if ret:
def add_mtpt(gen, lustre, options, args):
""" create mtpt on a node """
- if len(args) < 4:
+ if len(args) < 3:
usage()
- node_name = args[0]
+ if options.has_key('node'):
+ node_name = options['node']
+ else:
+ error("--mtpt requires a --node argument")
+
+ path = args[0]
mdc_name = args[1]
lov_name = args[2]
- path = args[3]
- name = new_name(node_name + "_mtpt")
+ name = new_name('MNT_'+ node_name)
ret = findByName(lustre, name, "mountpoint")
if ret:
ret = findByName(lustre, lov_name, "lov")
if not ret:
- error("LOV: ", lov_name, " not found.")
+ ret = findByName(lustre, lov_name, "osc")
+ if not ret:
+ error(lov_name, "not found.")
+
lov_uuid = ret.getAttribute("uuid")
ret = findByName(lustre, mdc_name, "mdc")
if not ret:
- error("MDC: ", mdc_name, " not found.")
+ error("MDC: ", mdc_name, "not found.")
mdc_uuid = ret.getAttribute("uuid")
uuid = get_uuid(name)
mtpt = gen.mountpoint(name, uuid, mdc_uuid, lov_uuid, path)
+ node = findByName(lustre, node_name, "node")
+ if not node:
+ error('node:', node_name, "not found.")
+ node_add_mnt(gen, node, uuid)
lustre.appendChild(mtpt)
def add_mds(gen, lustre, options, args):
- if len(args) < 3:
+ if len(args) < 1:
usage()
- node_name = args[0]
- devname = args[1]
- if len(args) > 3:
- size = args[3]
+ if options.has_key('node'):
+ node_name = options['node']
else:
- size = 0
+ error("--mds requires a --node argument")
- ret = findByName(lustre, node_name, "node")
+ devname = args[0]
+ if len(args) > 1:
+ size = args[1]
+ else:
+ size = 0
- mds_name = new_name(node_name+"_" + "mds")
- mdc_name = new_name(node_name+"_"+"mdc")
+ mds_name = new_name('MDS_'+ node_name)
+ mdc_name = new_name('MDC_'+ node_name)
mds_uuid = get_uuid(mds_name)
mdc_uuid = get_uuid(mdc_name)
+ node = findByName(lustre, node_name, "node")
+ if not node:
+ error('node:', node_name, 'not found')
+ node_add_mds(gen, node, mds_uuid)
+
net_uuid = get_net_uuid(lustre, node_name)
if not net_uuid:
error("NODE: ", node_name, "not found")
- mds = gen.mds(mds_name, mds_uuid, "extN", devname, "no", net_uuid)
+ mds = gen.mds(mds_name, mds_uuid, "extN", devname, "no", net_uuid, dev_size=size)
mdc = gen.mdc(mdc_name, mdc_uuid, mds_uuid)
lustre.appendChild(mds)
lustre.appendChild(mdc)
#
def parse_cmdline(argv):
- short_opts = "ho:i:"
- long_opts = ["ost", "mtpt", "lov", "node", "mds",
+ short_opts = "ho:i:m:"
+ long_opts = ["ost", "mtpt", "lov=", "node=", "mds", "net",
"merge=", "format", "reformat", "output=",
"in=", "help"]
opts = []
options['ost'] = 1
if o == "--mds":
options['mds'] = 1
- if o == "--node":
- options['node'] = 1
- if o == "--lov":
- options['lov'] = 1
+ if o == "--net":
+ options['net'] = 1
if o == "--mtpt":
options['mtpt'] = 1
- if o == "--merge":
+ if o == "--node":
+ options['node'] = a
+ if o == "--lov":
+ options['lov'] = a
+ if o in ("-m", "--merge"):
options['merge'] = a
if o == "--format":
options['format'] = 1
gen = GenConfig(doc)
if options.has_key('ost'):
add_ost(gen, lustre, options, args)
- elif options.has_key('node'):
- add_node(gen, lustre, options, args)
elif options.has_key('mtpt'):
add_mtpt(gen, lustre, options, args)
- elif options.has_key('lov'):
- add_lov(gen, lustre, options, args)
elif options.has_key('mds'):
add_mds(gen, lustre, options, args)
+ elif options.has_key('net'):
+ add_net(gen, lustre, options, args)
+ elif options.has_key('lov'):
+ add_lov(gen, lustre, options, args)
+ elif options.has_key('node'):
+ add_node(gen, lustre, options, args)
else:
print "Missing command"
usage()
git://git.whamcloud.com / fs / lustre-release.git / commitdiff