55 |
55 |
_LoadNodeEvacResult, _CheckIAllocatorOrNode, _CheckParamsNotGlobal, \
|
56 |
56 |
_IsExclusiveStorageEnabledNode, _CheckHVParams, _CheckOSParams, \
|
57 |
57 |
_GetWantedInstances, _CheckInstancesNodeGroups, _AnnotateDiskParams, \
|
58 |
|
_GetUpdatedParams, _ExpandInstanceName, _FindFaultyInstanceDisks, \
|
59 |
|
_ComputeIPolicySpecViolation, _ComputeIPolicyInstanceViolation, \
|
|
58 |
_GetUpdatedParams, _ExpandInstanceName, _ComputeIPolicySpecViolation, \
|
60 |
59 |
_CheckInstanceState, _ExpandNodeName
|
61 |
|
from ganeti.cmdlib.instance_utils import _AssembleInstanceDisks, \
|
62 |
|
_BuildInstanceHookEnvByObject, _GetClusterDomainSecret, \
|
63 |
|
_BuildInstanceHookEnv, _NICListToTuple, _NICToTuple, _CheckNodeNotDrained, \
|
64 |
|
_RemoveDisks, _StartInstanceDisks, _ShutdownInstanceDisks, \
|
65 |
|
_RemoveInstance, _ExpandCheckDisks
|
|
60 |
from ganeti.cmdlib.instance_storage import _CreateDisks, \
|
|
61 |
_CheckNodesFreeDiskPerVG, _WipeDisks, _WaitForSync, _CheckDiskConsistency, \
|
|
62 |
_IsExclusiveStorageEnabledNodeName, _CreateSingleBlockDev, _ComputeDisks, \
|
|
63 |
_CheckRADOSFreeSpace, _ComputeDiskSizePerVG, _GenerateDiskTemplate, \
|
|
64 |
_CreateBlockDev, _StartInstanceDisks, _ShutdownInstanceDisks, \
|
|
65 |
_AssembleInstanceDisks, _ExpandCheckDisks
|
|
66 |
from ganeti.cmdlib.instance_utils import _BuildInstanceHookEnvByObject, \
|
|
67 |
_GetClusterDomainSecret, _BuildInstanceHookEnv, _NICListToTuple, \
|
|
68 |
_NICToTuple, _CheckNodeNotDrained, _RemoveInstance, _CopyLockList, \
|
|
69 |
_ReleaseLocks, _CheckNodeVmCapable, _CheckTargetNodeIPolicy, \
|
|
70 |
_GetInstanceInfoText, _RemoveDisks
|
66 |
71 |
|
67 |
72 |
import ganeti.masterd.instance
|
68 |
73 |
|
69 |
74 |
|
70 |
|
_DISK_TEMPLATE_NAME_PREFIX = {
|
71 |
|
constants.DT_PLAIN: "",
|
72 |
|
constants.DT_RBD: ".rbd",
|
73 |
|
constants.DT_EXT: ".ext",
|
74 |
|
}
|
75 |
|
|
76 |
|
|
77 |
|
_DISK_TEMPLATE_DEVICE_TYPE = {
|
78 |
|
constants.DT_PLAIN: constants.LD_LV,
|
79 |
|
constants.DT_FILE: constants.LD_FILE,
|
80 |
|
constants.DT_SHARED_FILE: constants.LD_FILE,
|
81 |
|
constants.DT_BLOCK: constants.LD_BLOCKDEV,
|
82 |
|
constants.DT_RBD: constants.LD_RBD,
|
83 |
|
constants.DT_EXT: constants.LD_EXT,
|
84 |
|
}
|
85 |
|
|
86 |
|
|
87 |
75 |
#: Type description for changes as returned by L{ApplyContainerMods}'s
|
88 |
76 |
#: callbacks
|
89 |
77 |
_TApplyContModsCbChanges = \
|
... | ... | |
93 |
81 |
])))
|
94 |
82 |
|
95 |
83 |
|
96 |
|
def _CopyLockList(names):
|
97 |
|
"""Makes a copy of a list of lock names.
|
98 |
|
|
99 |
|
Handles L{locking.ALL_SET} correctly.
|
100 |
|
|
101 |
|
"""
|
102 |
|
if names == locking.ALL_SET:
|
103 |
|
return locking.ALL_SET
|
104 |
|
else:
|
105 |
|
return names[:]
|
106 |
|
|
107 |
|
|
108 |
|
def _ReleaseLocks(lu, level, names=None, keep=None):
|
109 |
|
"""Releases locks owned by an LU.
|
110 |
|
|
111 |
|
@type lu: L{LogicalUnit}
|
112 |
|
@param level: Lock level
|
113 |
|
@type names: list or None
|
114 |
|
@param names: Names of locks to release
|
115 |
|
@type keep: list or None
|
116 |
|
@param keep: Names of locks to retain
|
117 |
|
|
118 |
|
"""
|
119 |
|
assert not (keep is not None and names is not None), \
|
120 |
|
"Only one of the 'names' and the 'keep' parameters can be given"
|
121 |
|
|
122 |
|
if names is not None:
|
123 |
|
should_release = names.__contains__
|
124 |
|
elif keep:
|
125 |
|
should_release = lambda name: name not in keep
|
126 |
|
else:
|
127 |
|
should_release = None
|
128 |
|
|
129 |
|
owned = lu.owned_locks(level)
|
130 |
|
if not owned:
|
131 |
|
# Not owning any lock at this level, do nothing
|
132 |
|
pass
|
133 |
|
|
134 |
|
elif should_release:
|
135 |
|
retain = []
|
136 |
|
release = []
|
137 |
|
|
138 |
|
# Determine which locks to release
|
139 |
|
for name in owned:
|
140 |
|
if should_release(name):
|
141 |
|
release.append(name)
|
142 |
|
else:
|
143 |
|
retain.append(name)
|
144 |
|
|
145 |
|
assert len(lu.owned_locks(level)) == (len(retain) + len(release))
|
146 |
|
|
147 |
|
# Release just some locks
|
148 |
|
lu.glm.release(level, names=release)
|
149 |
|
|
150 |
|
assert frozenset(lu.owned_locks(level)) == frozenset(retain)
|
151 |
|
else:
|
152 |
|
# Release everything
|
153 |
|
lu.glm.release(level)
|
154 |
|
|
155 |
|
assert not lu.glm.is_owned(level), "No locks should be owned"
|
156 |
|
|
157 |
|
|
158 |
84 |
def _CheckHostnameSane(lu, name):
|
159 |
85 |
"""Ensures that a given hostname resolves to a 'sane' name.
|
160 |
86 |
|
... | ... | |
344 |
270 |
return (None, None)
|
345 |
271 |
|
346 |
272 |
|
347 |
|
def _CheckRADOSFreeSpace():
|
348 |
|
"""Compute disk size requirements inside the RADOS cluster.
|
349 |
|
|
350 |
|
"""
|
351 |
|
# For the RADOS cluster we assume there is always enough space.
|
352 |
|
pass
|
353 |
|
|
354 |
|
|
355 |
|
def _WaitForSync(lu, instance, disks=None, oneshot=False):
|
356 |
|
"""Sleep and poll for an instance's disk to sync.
|
357 |
|
|
358 |
|
"""
|
359 |
|
if not instance.disks or disks is not None and not disks:
|
360 |
|
return True
|
361 |
|
|
362 |
|
disks = _ExpandCheckDisks(instance, disks)
|
363 |
|
|
364 |
|
if not oneshot:
|
365 |
|
lu.LogInfo("Waiting for instance %s to sync disks", instance.name)
|
366 |
|
|
367 |
|
node = instance.primary_node
|
368 |
|
|
369 |
|
for dev in disks:
|
370 |
|
lu.cfg.SetDiskID(dev, node)
|
371 |
|
|
372 |
|
# TODO: Convert to utils.Retry
|
373 |
|
|
374 |
|
retries = 0
|
375 |
|
degr_retries = 10 # in seconds, as we sleep 1 second each time
|
376 |
|
while True:
|
377 |
|
max_time = 0
|
378 |
|
done = True
|
379 |
|
cumul_degraded = False
|
380 |
|
rstats = lu.rpc.call_blockdev_getmirrorstatus(node, (disks, instance))
|
381 |
|
msg = rstats.fail_msg
|
382 |
|
if msg:
|
383 |
|
lu.LogWarning("Can't get any data from node %s: %s", node, msg)
|
384 |
|
retries += 1
|
385 |
|
if retries >= 10:
|
386 |
|
raise errors.RemoteError("Can't contact node %s for mirror data,"
|
387 |
|
" aborting." % node)
|
388 |
|
time.sleep(6)
|
389 |
|
continue
|
390 |
|
rstats = rstats.payload
|
391 |
|
retries = 0
|
392 |
|
for i, mstat in enumerate(rstats):
|
393 |
|
if mstat is None:
|
394 |
|
lu.LogWarning("Can't compute data for node %s/%s",
|
395 |
|
node, disks[i].iv_name)
|
396 |
|
continue
|
397 |
|
|
398 |
|
cumul_degraded = (cumul_degraded or
|
399 |
|
(mstat.is_degraded and mstat.sync_percent is None))
|
400 |
|
if mstat.sync_percent is not None:
|
401 |
|
done = False
|
402 |
|
if mstat.estimated_time is not None:
|
403 |
|
rem_time = ("%s remaining (estimated)" %
|
404 |
|
utils.FormatSeconds(mstat.estimated_time))
|
405 |
|
max_time = mstat.estimated_time
|
406 |
|
else:
|
407 |
|
rem_time = "no time estimate"
|
408 |
|
lu.LogInfo("- device %s: %5.2f%% done, %s",
|
409 |
|
disks[i].iv_name, mstat.sync_percent, rem_time)
|
410 |
|
|
411 |
|
# if we're done but degraded, let's do a few small retries, to
|
412 |
|
# make sure we see a stable and not transient situation; therefore
|
413 |
|
# we force restart of the loop
|
414 |
|
if (done or oneshot) and cumul_degraded and degr_retries > 0:
|
415 |
|
logging.info("Degraded disks found, %d retries left", degr_retries)
|
416 |
|
degr_retries -= 1
|
417 |
|
time.sleep(1)
|
418 |
|
continue
|
419 |
|
|
420 |
|
if done or oneshot:
|
421 |
|
break
|
422 |
|
|
423 |
|
time.sleep(min(60, max_time))
|
424 |
|
|
425 |
|
if done:
|
426 |
|
lu.LogInfo("Instance %s's disks are in sync", instance.name)
|
427 |
|
|
428 |
|
return not cumul_degraded
|
429 |
|
|
430 |
|
|
431 |
|
def _ComputeDisks(op, default_vg):
|
432 |
|
"""Computes the instance disks.
|
433 |
|
|
434 |
|
@param op: The instance opcode
|
435 |
|
@param default_vg: The default_vg to assume
|
436 |
|
|
437 |
|
@return: The computed disks
|
438 |
|
|
439 |
|
"""
|
440 |
|
disks = []
|
441 |
|
for disk in op.disks:
|
442 |
|
mode = disk.get(constants.IDISK_MODE, constants.DISK_RDWR)
|
443 |
|
if mode not in constants.DISK_ACCESS_SET:
|
444 |
|
raise errors.OpPrereqError("Invalid disk access mode '%s'" %
|
445 |
|
mode, errors.ECODE_INVAL)
|
446 |
|
size = disk.get(constants.IDISK_SIZE, None)
|
447 |
|
if size is None:
|
448 |
|
raise errors.OpPrereqError("Missing disk size", errors.ECODE_INVAL)
|
449 |
|
try:
|
450 |
|
size = int(size)
|
451 |
|
except (TypeError, ValueError):
|
452 |
|
raise errors.OpPrereqError("Invalid disk size '%s'" % size,
|
453 |
|
errors.ECODE_INVAL)
|
454 |
|
|
455 |
|
ext_provider = disk.get(constants.IDISK_PROVIDER, None)
|
456 |
|
if ext_provider and op.disk_template != constants.DT_EXT:
|
457 |
|
raise errors.OpPrereqError("The '%s' option is only valid for the %s"
|
458 |
|
" disk template, not %s" %
|
459 |
|
(constants.IDISK_PROVIDER, constants.DT_EXT,
|
460 |
|
op.disk_template), errors.ECODE_INVAL)
|
461 |
|
|
462 |
|
data_vg = disk.get(constants.IDISK_VG, default_vg)
|
463 |
|
name = disk.get(constants.IDISK_NAME, None)
|
464 |
|
if name is not None and name.lower() == constants.VALUE_NONE:
|
465 |
|
name = None
|
466 |
|
new_disk = {
|
467 |
|
constants.IDISK_SIZE: size,
|
468 |
|
constants.IDISK_MODE: mode,
|
469 |
|
constants.IDISK_VG: data_vg,
|
470 |
|
constants.IDISK_NAME: name,
|
471 |
|
}
|
472 |
|
|
473 |
|
if constants.IDISK_METAVG in disk:
|
474 |
|
new_disk[constants.IDISK_METAVG] = disk[constants.IDISK_METAVG]
|
475 |
|
if constants.IDISK_ADOPT in disk:
|
476 |
|
new_disk[constants.IDISK_ADOPT] = disk[constants.IDISK_ADOPT]
|
477 |
|
|
478 |
|
# For extstorage, demand the `provider' option and add any
|
479 |
|
# additional parameters (ext-params) to the dict
|
480 |
|
if op.disk_template == constants.DT_EXT:
|
481 |
|
if ext_provider:
|
482 |
|
new_disk[constants.IDISK_PROVIDER] = ext_provider
|
483 |
|
for key in disk:
|
484 |
|
if key not in constants.IDISK_PARAMS:
|
485 |
|
new_disk[key] = disk[key]
|
486 |
|
else:
|
487 |
|
raise errors.OpPrereqError("Missing provider for template '%s'" %
|
488 |
|
constants.DT_EXT, errors.ECODE_INVAL)
|
489 |
|
|
490 |
|
disks.append(new_disk)
|
491 |
|
|
492 |
|
return disks
|
493 |
|
|
494 |
|
|
495 |
|
def _ComputeDiskSizePerVG(disk_template, disks):
|
496 |
|
"""Compute disk size requirements in the volume group
|
497 |
|
|
498 |
|
"""
|
499 |
|
def _compute(disks, payload):
|
500 |
|
"""Universal algorithm.
|
501 |
|
|
502 |
|
"""
|
503 |
|
vgs = {}
|
504 |
|
for disk in disks:
|
505 |
|
vgs[disk[constants.IDISK_VG]] = \
|
506 |
|
vgs.get(constants.IDISK_VG, 0) + disk[constants.IDISK_SIZE] + payload
|
507 |
|
|
508 |
|
return vgs
|
509 |
|
|
510 |
|
# Required free disk space as a function of disk and swap space
|
511 |
|
req_size_dict = {
|
512 |
|
constants.DT_DISKLESS: {},
|
513 |
|
constants.DT_PLAIN: _compute(disks, 0),
|
514 |
|
# 128 MB are added for drbd metadata for each disk
|
515 |
|
constants.DT_DRBD8: _compute(disks, constants.DRBD_META_SIZE),
|
516 |
|
constants.DT_FILE: {},
|
517 |
|
constants.DT_SHARED_FILE: {},
|
518 |
|
}
|
519 |
|
|
520 |
|
if disk_template not in req_size_dict:
|
521 |
|
raise errors.ProgrammerError("Disk template '%s' size requirement"
|
522 |
|
" is unknown" % disk_template)
|
523 |
|
|
524 |
|
return req_size_dict[disk_template]
|
525 |
|
|
526 |
|
|
527 |
|
def _CheckNodesFreeDiskOnVG(lu, nodenames, vg, requested):
|
528 |
|
"""Checks if nodes have enough free disk space in the specified VG.
|
529 |
|
|
530 |
|
This function checks if all given nodes have the needed amount of
|
531 |
|
free disk. In case any node has less disk or we cannot get the
|
532 |
|
information from the node, this function raises an OpPrereqError
|
533 |
|
exception.
|
534 |
|
|
535 |
|
@type lu: C{LogicalUnit}
|
536 |
|
@param lu: a logical unit from which we get configuration data
|
537 |
|
@type nodenames: C{list}
|
538 |
|
@param nodenames: the list of node names to check
|
539 |
|
@type vg: C{str}
|
540 |
|
@param vg: the volume group to check
|
541 |
|
@type requested: C{int}
|
542 |
|
@param requested: the amount of disk in MiB to check for
|
543 |
|
@raise errors.OpPrereqError: if the node doesn't have enough disk,
|
544 |
|
or we cannot check the node
|
545 |
|
|
546 |
|
"""
|
547 |
|
es_flags = rpc.GetExclusiveStorageForNodeNames(lu.cfg, nodenames)
|
548 |
|
nodeinfo = lu.rpc.call_node_info(nodenames, [vg], None, es_flags)
|
549 |
|
for node in nodenames:
|
550 |
|
info = nodeinfo[node]
|
551 |
|
info.Raise("Cannot get current information from node %s" % node,
|
552 |
|
prereq=True, ecode=errors.ECODE_ENVIRON)
|
553 |
|
(_, (vg_info, ), _) = info.payload
|
554 |
|
vg_free = vg_info.get("vg_free", None)
|
555 |
|
if not isinstance(vg_free, int):
|
556 |
|
raise errors.OpPrereqError("Can't compute free disk space on node"
|
557 |
|
" %s for vg %s, result was '%s'" %
|
558 |
|
(node, vg, vg_free), errors.ECODE_ENVIRON)
|
559 |
|
if requested > vg_free:
|
560 |
|
raise errors.OpPrereqError("Not enough disk space on target node %s"
|
561 |
|
" vg %s: required %d MiB, available %d MiB" %
|
562 |
|
(node, vg, requested, vg_free),
|
563 |
|
errors.ECODE_NORES)
|
564 |
|
|
565 |
|
|
566 |
|
def _CheckNodesFreeDiskPerVG(lu, nodenames, req_sizes):
|
567 |
|
"""Checks if nodes have enough free disk space in all the VGs.
|
568 |
|
|
569 |
|
This function checks if all given nodes have the needed amount of
|
570 |
|
free disk. In case any node has less disk or we cannot get the
|
571 |
|
information from the node, this function raises an OpPrereqError
|
572 |
|
exception.
|
573 |
|
|
574 |
|
@type lu: C{LogicalUnit}
|
575 |
|
@param lu: a logical unit from which we get configuration data
|
576 |
|
@type nodenames: C{list}
|
577 |
|
@param nodenames: the list of node names to check
|
578 |
|
@type req_sizes: C{dict}
|
579 |
|
@param req_sizes: the hash of vg and corresponding amount of disk in
|
580 |
|
MiB to check for
|
581 |
|
@raise errors.OpPrereqError: if the node doesn't have enough disk,
|
582 |
|
or we cannot check the node
|
583 |
|
|
584 |
|
"""
|
585 |
|
for vg, req_size in req_sizes.items():
|
586 |
|
_CheckNodesFreeDiskOnVG(lu, nodenames, vg, req_size)
|
587 |
|
|
588 |
|
|
589 |
|
def _CheckNodeVmCapable(lu, node):
|
590 |
|
"""Ensure that a given node is vm capable.
|
591 |
|
|
592 |
|
@param lu: the LU on behalf of which we make the check
|
593 |
|
@param node: the node to check
|
594 |
|
@raise errors.OpPrereqError: if the node is not vm capable
|
595 |
|
|
596 |
|
"""
|
597 |
|
if not lu.cfg.GetNodeInfo(node).vm_capable:
|
598 |
|
raise errors.OpPrereqError("Can't use non-vm_capable node %s" % node,
|
599 |
|
errors.ECODE_STATE)
|
600 |
|
|
601 |
|
|
602 |
273 |
def _ComputeIPolicyInstanceSpecViolation(
|
603 |
274 |
ipolicy, instance_spec, disk_template,
|
604 |
275 |
_compute_fn=_ComputeIPolicySpecViolation):
|
... | ... | |
723 |
394 |
return free_mem
|
724 |
395 |
|
725 |
396 |
|
726 |
|
def _GenerateUniqueNames(lu, exts):
|
727 |
|
"""Generate a suitable LV name.
|
728 |
|
|
729 |
|
This will generate a logical volume name for the given instance.
|
730 |
|
|
731 |
|
"""
|
732 |
|
results = []
|
733 |
|
for val in exts:
|
734 |
|
new_id = lu.cfg.GenerateUniqueID(lu.proc.GetECId())
|
735 |
|
results.append("%s%s" % (new_id, val))
|
736 |
|
return results
|
737 |
|
|
738 |
|
|
739 |
|
def _GenerateDRBD8Branch(lu, primary, secondary, size, vgnames, names,
|
740 |
|
iv_name, p_minor, s_minor):
|
741 |
|
"""Generate a drbd8 device complete with its children.
|
742 |
|
|
743 |
|
"""
|
744 |
|
assert len(vgnames) == len(names) == 2
|
745 |
|
port = lu.cfg.AllocatePort()
|
746 |
|
shared_secret = lu.cfg.GenerateDRBDSecret(lu.proc.GetECId())
|
747 |
|
|
748 |
|
dev_data = objects.Disk(dev_type=constants.LD_LV, size=size,
|
749 |
|
logical_id=(vgnames[0], names[0]),
|
750 |
|
params={})
|
751 |
|
dev_data.uuid = lu.cfg.GenerateUniqueID(lu.proc.GetECId())
|
752 |
|
dev_meta = objects.Disk(dev_type=constants.LD_LV,
|
753 |
|
size=constants.DRBD_META_SIZE,
|
754 |
|
logical_id=(vgnames[1], names[1]),
|
755 |
|
params={})
|
756 |
|
dev_meta.uuid = lu.cfg.GenerateUniqueID(lu.proc.GetECId())
|
757 |
|
drbd_dev = objects.Disk(dev_type=constants.LD_DRBD8, size=size,
|
758 |
|
logical_id=(primary, secondary, port,
|
759 |
|
p_minor, s_minor,
|
760 |
|
shared_secret),
|
761 |
|
children=[dev_data, dev_meta],
|
762 |
|
iv_name=iv_name, params={})
|
763 |
|
drbd_dev.uuid = lu.cfg.GenerateUniqueID(lu.proc.GetECId())
|
764 |
|
return drbd_dev
|
765 |
|
|
766 |
|
|
767 |
|
def _GenerateDiskTemplate(
|
768 |
|
lu, template_name, instance_name, primary_node, secondary_nodes,
|
769 |
|
disk_info, file_storage_dir, file_driver, base_index,
|
770 |
|
feedback_fn, full_disk_params, _req_file_storage=opcodes.RequireFileStorage,
|
771 |
|
_req_shr_file_storage=opcodes.RequireSharedFileStorage):
|
772 |
|
"""Generate the entire disk layout for a given template type.
|
773 |
|
|
774 |
|
"""
|
775 |
|
vgname = lu.cfg.GetVGName()
|
776 |
|
disk_count = len(disk_info)
|
777 |
|
disks = []
|
778 |
|
|
779 |
|
if template_name == constants.DT_DISKLESS:
|
780 |
|
pass
|
781 |
|
elif template_name == constants.DT_DRBD8:
|
782 |
|
if len(secondary_nodes) != 1:
|
783 |
|
raise errors.ProgrammerError("Wrong template configuration")
|
784 |
|
remote_node = secondary_nodes[0]
|
785 |
|
minors = lu.cfg.AllocateDRBDMinor(
|
786 |
|
[primary_node, remote_node] * len(disk_info), instance_name)
|
787 |
|
|
788 |
|
(drbd_params, _, _) = objects.Disk.ComputeLDParams(template_name,
|
789 |
|
full_disk_params)
|
790 |
|
drbd_default_metavg = drbd_params[constants.LDP_DEFAULT_METAVG]
|
791 |
|
|
792 |
|
names = []
|
793 |
|
for lv_prefix in _GenerateUniqueNames(lu, [".disk%d" % (base_index + i)
|
794 |
|
for i in range(disk_count)]):
|
795 |
|
names.append(lv_prefix + "_data")
|
796 |
|
names.append(lv_prefix + "_meta")
|
797 |
|
for idx, disk in enumerate(disk_info):
|
798 |
|
disk_index = idx + base_index
|
799 |
|
data_vg = disk.get(constants.IDISK_VG, vgname)
|
800 |
|
meta_vg = disk.get(constants.IDISK_METAVG, drbd_default_metavg)
|
801 |
|
disk_dev = _GenerateDRBD8Branch(lu, primary_node, remote_node,
|
802 |
|
disk[constants.IDISK_SIZE],
|
803 |
|
[data_vg, meta_vg],
|
804 |
|
names[idx * 2:idx * 2 + 2],
|
805 |
|
"disk/%d" % disk_index,
|
806 |
|
minors[idx * 2], minors[idx * 2 + 1])
|
807 |
|
disk_dev.mode = disk[constants.IDISK_MODE]
|
808 |
|
disk_dev.name = disk.get(constants.IDISK_NAME, None)
|
809 |
|
disks.append(disk_dev)
|
810 |
|
else:
|
811 |
|
if secondary_nodes:
|
812 |
|
raise errors.ProgrammerError("Wrong template configuration")
|
813 |
|
|
814 |
|
if template_name == constants.DT_FILE:
|
815 |
|
_req_file_storage()
|
816 |
|
elif template_name == constants.DT_SHARED_FILE:
|
817 |
|
_req_shr_file_storage()
|
818 |
|
|
819 |
|
name_prefix = _DISK_TEMPLATE_NAME_PREFIX.get(template_name, None)
|
820 |
|
if name_prefix is None:
|
821 |
|
names = None
|
822 |
|
else:
|
823 |
|
names = _GenerateUniqueNames(lu, ["%s.disk%s" %
|
824 |
|
(name_prefix, base_index + i)
|
825 |
|
for i in range(disk_count)])
|
826 |
|
|
827 |
|
if template_name == constants.DT_PLAIN:
|
828 |
|
|
829 |
|
def logical_id_fn(idx, _, disk):
|
830 |
|
vg = disk.get(constants.IDISK_VG, vgname)
|
831 |
|
return (vg, names[idx])
|
832 |
|
|
833 |
|
elif template_name in (constants.DT_FILE, constants.DT_SHARED_FILE):
|
834 |
|
logical_id_fn = \
|
835 |
|
lambda _, disk_index, disk: (file_driver,
|
836 |
|
"%s/disk%d" % (file_storage_dir,
|
837 |
|
disk_index))
|
838 |
|
elif template_name == constants.DT_BLOCK:
|
839 |
|
logical_id_fn = \
|
840 |
|
lambda idx, disk_index, disk: (constants.BLOCKDEV_DRIVER_MANUAL,
|
841 |
|
disk[constants.IDISK_ADOPT])
|
842 |
|
elif template_name == constants.DT_RBD:
|
843 |
|
logical_id_fn = lambda idx, _, disk: ("rbd", names[idx])
|
844 |
|
elif template_name == constants.DT_EXT:
|
845 |
|
def logical_id_fn(idx, _, disk):
|
846 |
|
provider = disk.get(constants.IDISK_PROVIDER, None)
|
847 |
|
if provider is None:
|
848 |
|
raise errors.ProgrammerError("Disk template is %s, but '%s' is"
|
849 |
|
" not found", constants.DT_EXT,
|
850 |
|
constants.IDISK_PROVIDER)
|
851 |
|
return (provider, names[idx])
|
852 |
|
else:
|
853 |
|
raise errors.ProgrammerError("Unknown disk template '%s'" % template_name)
|
854 |
|
|
855 |
|
dev_type = _DISK_TEMPLATE_DEVICE_TYPE[template_name]
|
856 |
|
|
857 |
|
for idx, disk in enumerate(disk_info):
|
858 |
|
params = {}
|
859 |
|
# Only for the Ext template add disk_info to params
|
860 |
|
if template_name == constants.DT_EXT:
|
861 |
|
params[constants.IDISK_PROVIDER] = disk[constants.IDISK_PROVIDER]
|
862 |
|
for key in disk:
|
863 |
|
if key not in constants.IDISK_PARAMS:
|
864 |
|
params[key] = disk[key]
|
865 |
|
disk_index = idx + base_index
|
866 |
|
size = disk[constants.IDISK_SIZE]
|
867 |
|
feedback_fn("* disk %s, size %s" %
|
868 |
|
(disk_index, utils.FormatUnit(size, "h")))
|
869 |
|
disk_dev = objects.Disk(dev_type=dev_type, size=size,
|
870 |
|
logical_id=logical_id_fn(idx, disk_index, disk),
|
871 |
|
iv_name="disk/%d" % disk_index,
|
872 |
|
mode=disk[constants.IDISK_MODE],
|
873 |
|
params=params)
|
874 |
|
disk_dev.name = disk.get(constants.IDISK_NAME, None)
|
875 |
|
disk_dev.uuid = lu.cfg.GenerateUniqueID(lu.proc.GetECId())
|
876 |
|
disks.append(disk_dev)
|
877 |
|
|
878 |
|
return disks
|
879 |
|
|
880 |
|
|
881 |
|
def _CreateSingleBlockDev(lu, node, instance, device, info, force_open,
|
882 |
|
excl_stor):
|
883 |
|
"""Create a single block device on a given node.
|
884 |
|
|
885 |
|
This will not recurse over children of the device, so they must be
|
886 |
|
created in advance.
|
887 |
|
|
888 |
|
@param lu: the lu on whose behalf we execute
|
889 |
|
@param node: the node on which to create the device
|
890 |
|
@type instance: L{objects.Instance}
|
891 |
|
@param instance: the instance which owns the device
|
892 |
|
@type device: L{objects.Disk}
|
893 |
|
@param device: the device to create
|
894 |
|
@param info: the extra 'metadata' we should attach to the device
|
895 |
|
(this will be represented as a LVM tag)
|
896 |
|
@type force_open: boolean
|
897 |
|
@param force_open: this parameter will be passes to the
|
898 |
|
L{backend.BlockdevCreate} function where it specifies
|
899 |
|
whether we run on primary or not, and it affects both
|
900 |
|
the child assembly and the device own Open() execution
|
901 |
|
@type excl_stor: boolean
|
902 |
|
@param excl_stor: Whether exclusive_storage is active for the node
|
903 |
|
|
904 |
|
"""
|
905 |
|
lu.cfg.SetDiskID(device, node)
|
906 |
|
result = lu.rpc.call_blockdev_create(node, device, device.size,
|
907 |
|
instance.name, force_open, info,
|
908 |
|
excl_stor)
|
909 |
|
result.Raise("Can't create block device %s on"
|
910 |
|
" node %s for instance %s" % (device, node, instance.name))
|
911 |
|
if device.physical_id is None:
|
912 |
|
device.physical_id = result.payload
|
913 |
|
|
914 |
|
|
915 |
|
def _CreateBlockDevInner(lu, node, instance, device, force_create,
|
916 |
|
info, force_open, excl_stor):
|
917 |
|
"""Create a tree of block devices on a given node.
|
918 |
|
|
919 |
|
If this device type has to be created on secondaries, create it and
|
920 |
|
all its children.
|
921 |
|
|
922 |
|
If not, just recurse to children keeping the same 'force' value.
|
923 |
|
|
924 |
|
@attention: The device has to be annotated already.
|
925 |
|
|
926 |
|
@param lu: the lu on whose behalf we execute
|
927 |
|
@param node: the node on which to create the device
|
928 |
|
@type instance: L{objects.Instance}
|
929 |
|
@param instance: the instance which owns the device
|
930 |
|
@type device: L{objects.Disk}
|
931 |
|
@param device: the device to create
|
932 |
|
@type force_create: boolean
|
933 |
|
@param force_create: whether to force creation of this device; this
|
934 |
|
will be change to True whenever we find a device which has
|
935 |
|
CreateOnSecondary() attribute
|
936 |
|
@param info: the extra 'metadata' we should attach to the device
|
937 |
|
(this will be represented as a LVM tag)
|
938 |
|
@type force_open: boolean
|
939 |
|
@param force_open: this parameter will be passes to the
|
940 |
|
L{backend.BlockdevCreate} function where it specifies
|
941 |
|
whether we run on primary or not, and it affects both
|
942 |
|
the child assembly and the device own Open() execution
|
943 |
|
@type excl_stor: boolean
|
944 |
|
@param excl_stor: Whether exclusive_storage is active for the node
|
945 |
|
|
946 |
|
@return: list of created devices
|
947 |
|
"""
|
948 |
|
created_devices = []
|
949 |
|
try:
|
950 |
|
if device.CreateOnSecondary():
|
951 |
|
force_create = True
|
952 |
|
|
953 |
|
if device.children:
|
954 |
|
for child in device.children:
|
955 |
|
devs = _CreateBlockDevInner(lu, node, instance, child, force_create,
|
956 |
|
info, force_open, excl_stor)
|
957 |
|
created_devices.extend(devs)
|
958 |
|
|
959 |
|
if not force_create:
|
960 |
|
return created_devices
|
961 |
|
|
962 |
|
_CreateSingleBlockDev(lu, node, instance, device, info, force_open,
|
963 |
|
excl_stor)
|
964 |
|
# The device has been completely created, so there is no point in keeping
|
965 |
|
# its subdevices in the list. We just add the device itself instead.
|
966 |
|
created_devices = [(node, device)]
|
967 |
|
return created_devices
|
968 |
|
|
969 |
|
except errors.DeviceCreationError, e:
|
970 |
|
e.created_devices.extend(created_devices)
|
971 |
|
raise e
|
972 |
|
except errors.OpExecError, e:
|
973 |
|
raise errors.DeviceCreationError(str(e), created_devices)
|
974 |
|
|
975 |
|
|
976 |
|
def _IsExclusiveStorageEnabledNodeName(cfg, nodename):
|
977 |
|
"""Whether exclusive_storage is in effect for the given node.
|
978 |
|
|
979 |
|
@type cfg: L{config.ConfigWriter}
|
980 |
|
@param cfg: The cluster configuration
|
981 |
|
@type nodename: string
|
982 |
|
@param nodename: The node
|
983 |
|
@rtype: bool
|
984 |
|
@return: The effective value of exclusive_storage
|
985 |
|
@raise errors.OpPrereqError: if no node exists with the given name
|
986 |
|
|
987 |
|
"""
|
988 |
|
ni = cfg.GetNodeInfo(nodename)
|
989 |
|
if ni is None:
|
990 |
|
raise errors.OpPrereqError("Invalid node name %s" % nodename,
|
991 |
|
errors.ECODE_NOENT)
|
992 |
|
return _IsExclusiveStorageEnabledNode(cfg, ni)
|
993 |
|
|
994 |
|
|
995 |
|
def _CreateBlockDev(lu, node, instance, device, force_create, info,
|
996 |
|
force_open):
|
997 |
|
"""Wrapper around L{_CreateBlockDevInner}.
|
998 |
|
|
999 |
|
This method annotates the root device first.
|
1000 |
|
|
1001 |
|
"""
|
1002 |
|
(disk,) = _AnnotateDiskParams(instance, [device], lu.cfg)
|
1003 |
|
excl_stor = _IsExclusiveStorageEnabledNodeName(lu.cfg, node)
|
1004 |
|
return _CreateBlockDevInner(lu, node, instance, disk, force_create, info,
|
1005 |
|
force_open, excl_stor)
|
1006 |
|
|
1007 |
|
|
1008 |
|
def _CreateDisks(lu, instance, to_skip=None, target_node=None):
|
1009 |
|
"""Create all disks for an instance.
|
1010 |
|
|
1011 |
|
This abstracts away some work from AddInstance.
|
1012 |
|
|
1013 |
|
@type lu: L{LogicalUnit}
|
1014 |
|
@param lu: the logical unit on whose behalf we execute
|
1015 |
|
@type instance: L{objects.Instance}
|
1016 |
|
@param instance: the instance whose disks we should create
|
1017 |
|
@type to_skip: list
|
1018 |
|
@param to_skip: list of indices to skip
|
1019 |
|
@type target_node: string
|
1020 |
|
@param target_node: if passed, overrides the target node for creation
|
1021 |
|
@rtype: boolean
|
1022 |
|
@return: the success of the creation
|
1023 |
|
|
1024 |
|
"""
|
1025 |
|
info = _GetInstanceInfoText(instance)
|
1026 |
|
if target_node is None:
|
1027 |
|
pnode = instance.primary_node
|
1028 |
|
all_nodes = instance.all_nodes
|
1029 |
|
else:
|
1030 |
|
pnode = target_node
|
1031 |
|
all_nodes = [pnode]
|
1032 |
|
|
1033 |
|
if instance.disk_template in constants.DTS_FILEBASED:
|
1034 |
|
file_storage_dir = os.path.dirname(instance.disks[0].logical_id[1])
|
1035 |
|
result = lu.rpc.call_file_storage_dir_create(pnode, file_storage_dir)
|
1036 |
|
|
1037 |
|
result.Raise("Failed to create directory '%s' on"
|
1038 |
|
" node %s" % (file_storage_dir, pnode))
|
1039 |
|
|
1040 |
|
disks_created = []
|
1041 |
|
# Note: this needs to be kept in sync with adding of disks in
|
1042 |
|
# LUInstanceSetParams
|
1043 |
|
for idx, device in enumerate(instance.disks):
|
1044 |
|
if to_skip and idx in to_skip:
|
1045 |
|
continue
|
1046 |
|
logging.info("Creating disk %s for instance '%s'", idx, instance.name)
|
1047 |
|
#HARDCODE
|
1048 |
|
for node in all_nodes:
|
1049 |
|
f_create = node == pnode
|
1050 |
|
try:
|
1051 |
|
_CreateBlockDev(lu, node, instance, device, f_create, info, f_create)
|
1052 |
|
disks_created.append((node, device))
|
1053 |
|
except errors.OpExecError:
|
1054 |
|
logging.warning("Creating disk %s for instance '%s' failed",
|
1055 |
|
idx, instance.name)
|
1056 |
|
except errors.DeviceCreationError, e:
|
1057 |
|
logging.warning("Creating disk %s for instance '%s' failed",
|
1058 |
|
idx, instance.name)
|
1059 |
|
disks_created.extend(e.created_devices)
|
1060 |
|
for (node, disk) in disks_created:
|
1061 |
|
lu.cfg.SetDiskID(disk, node)
|
1062 |
|
result = lu.rpc.call_blockdev_remove(node, disk)
|
1063 |
|
if result.fail_msg:
|
1064 |
|
logging.warning("Failed to remove newly-created disk %s on node %s:"
|
1065 |
|
" %s", device, node, result.fail_msg)
|
1066 |
|
raise errors.OpExecError(e.message)
|
1067 |
|
|
1068 |
|
|
1069 |
|
def _CalcEta(time_taken, written, total_size):
|
1070 |
|
"""Calculates the ETA based on size written and total size.
|
1071 |
|
|
1072 |
|
@param time_taken: The time taken so far
|
1073 |
|
@param written: amount written so far
|
1074 |
|
@param total_size: The total size of data to be written
|
1075 |
|
@return: The remaining time in seconds
|
1076 |
|
|
1077 |
|
"""
|
1078 |
|
avg_time = time_taken / float(written)
|
1079 |
|
return (total_size - written) * avg_time
|
1080 |
|
|
1081 |
|
|
1082 |
|
def _WipeDisks(lu, instance, disks=None):
|
1083 |
|
"""Wipes instance disks.
|
1084 |
|
|
1085 |
|
@type lu: L{LogicalUnit}
|
1086 |
|
@param lu: the logical unit on whose behalf we execute
|
1087 |
|
@type instance: L{objects.Instance}
|
1088 |
|
@param instance: the instance whose disks we should create
|
1089 |
|
@type disks: None or list of tuple of (number, L{objects.Disk}, number)
|
1090 |
|
@param disks: Disk details; tuple contains disk index, disk object and the
|
1091 |
|
start offset
|
1092 |
|
|
1093 |
|
"""
|
1094 |
|
node = instance.primary_node
|
1095 |
|
|
1096 |
|
if disks is None:
|
1097 |
|
disks = [(idx, disk, 0)
|
1098 |
|
for (idx, disk) in enumerate(instance.disks)]
|
1099 |
|
|
1100 |
|
for (_, device, _) in disks:
|
1101 |
|
lu.cfg.SetDiskID(device, node)
|
1102 |
|
|
1103 |
|
logging.info("Pausing synchronization of disks of instance '%s'",
|
1104 |
|
instance.name)
|
1105 |
|
result = lu.rpc.call_blockdev_pause_resume_sync(node,
|
1106 |
|
(map(compat.snd, disks),
|
1107 |
|
instance),
|
1108 |
|
True)
|
1109 |
|
result.Raise("Failed to pause disk synchronization on node '%s'" % node)
|
1110 |
|
|
1111 |
|
for idx, success in enumerate(result.payload):
|
1112 |
|
if not success:
|
1113 |
|
logging.warn("Pausing synchronization of disk %s of instance '%s'"
|
1114 |
|
" failed", idx, instance.name)
|
1115 |
|
|
1116 |
|
try:
|
1117 |
|
for (idx, device, offset) in disks:
|
1118 |
|
# The wipe size is MIN_WIPE_CHUNK_PERCENT % of the instance disk but
|
1119 |
|
# MAX_WIPE_CHUNK at max. Truncating to integer to avoid rounding errors.
|
1120 |
|
wipe_chunk_size = \
|
1121 |
|
int(min(constants.MAX_WIPE_CHUNK,
|
1122 |
|
device.size / 100.0 * constants.MIN_WIPE_CHUNK_PERCENT))
|
1123 |
|
|
1124 |
|
size = device.size
|
1125 |
|
last_output = 0
|
1126 |
|
start_time = time.time()
|
1127 |
|
|
1128 |
|
if offset == 0:
|
1129 |
|
info_text = ""
|
1130 |
|
else:
|
1131 |
|
info_text = (" (from %s to %s)" %
|
1132 |
|
(utils.FormatUnit(offset, "h"),
|
1133 |
|
utils.FormatUnit(size, "h")))
|
1134 |
|
|
1135 |
|
lu.LogInfo("* Wiping disk %s%s", idx, info_text)
|
1136 |
|
|
1137 |
|
logging.info("Wiping disk %d for instance %s on node %s using"
|
1138 |
|
" chunk size %s", idx, instance.name, node, wipe_chunk_size)
|
1139 |
|
|
1140 |
|
while offset < size:
|
1141 |
|
wipe_size = min(wipe_chunk_size, size - offset)
|
1142 |
|
|
1143 |
|
logging.debug("Wiping disk %d, offset %s, chunk %s",
|
1144 |
|
idx, offset, wipe_size)
|
1145 |
|
|
1146 |
|
result = lu.rpc.call_blockdev_wipe(node, (device, instance), offset,
|
1147 |
|
wipe_size)
|
1148 |
|
result.Raise("Could not wipe disk %d at offset %d for size %d" %
|
1149 |
|
(idx, offset, wipe_size))
|
1150 |
|
|
1151 |
|
now = time.time()
|
1152 |
|
offset += wipe_size
|
1153 |
|
if now - last_output >= 60:
|
1154 |
|
eta = _CalcEta(now - start_time, offset, size)
|
1155 |
|
lu.LogInfo(" - done: %.1f%% ETA: %s",
|
1156 |
|
offset / float(size) * 100, utils.FormatSeconds(eta))
|
1157 |
|
last_output = now
|
1158 |
|
finally:
|
1159 |
|
logging.info("Resuming synchronization of disks for instance '%s'",
|
1160 |
|
instance.name)
|
1161 |
|
|
1162 |
|
result = lu.rpc.call_blockdev_pause_resume_sync(node,
|
1163 |
|
(map(compat.snd, disks),
|
1164 |
|
instance),
|
1165 |
|
False)
|
1166 |
|
|
1167 |
|
if result.fail_msg:
|
1168 |
|
lu.LogWarning("Failed to resume disk synchronization on node '%s': %s",
|
1169 |
|
node, result.fail_msg)
|
1170 |
|
else:
|
1171 |
|
for idx, success in enumerate(result.payload):
|
1172 |
|
if not success:
|
1173 |
|
lu.LogWarning("Resuming synchronization of disk %s of instance '%s'"
|
1174 |
|
" failed", idx, instance.name)
|
1175 |
|
|
1176 |
|
|
1177 |
397 |
class LUInstanceCreate(LogicalUnit):
|
1178 |
398 |
"""Create an instance.
|
1179 |
399 |
|
... | ... | |
2259 |
1479 |
return list(iobj.all_nodes)
|
2260 |
1480 |
|
2261 |
1481 |
|
2262 |
|
def _GetInstanceInfoText(instance):
|
2263 |
|
"""Compute that text that should be added to the disk's metadata.
|
2264 |
|
|
2265 |
|
"""
|
2266 |
|
return "originstname+%s" % instance.name
|
2267 |
|
|
2268 |
|
|
2269 |
1482 |
class LUInstanceRename(LogicalUnit):
|
2270 |
1483 |
"""Rename an instance.
|
2271 |
1484 |
|
... | ... | |
2476 |
1689 |
_CheckNicsBridgesExist(lu, instance.nics, node)
|
2477 |
1690 |
|
2478 |
1691 |
|
2479 |
|
def _ComputeIPolicyNodeViolation(ipolicy, instance, current_group,
|
2480 |
|
target_group, cfg,
|
2481 |
|
_compute_fn=_ComputeIPolicyInstanceViolation):
|
2482 |
|
"""Compute if instance meets the specs of the new target group.
|
2483 |
|
|
2484 |
|
@param ipolicy: The ipolicy to verify
|
2485 |
|
@param instance: The instance object to verify
|
2486 |
|
@param current_group: The current group of the instance
|
2487 |
|
@param target_group: The new group of the instance
|
2488 |
|
@type cfg: L{config.ConfigWriter}
|
2489 |
|
@param cfg: Cluster configuration
|
2490 |
|
@param _compute_fn: The function to verify ipolicy (unittest only)
|
2491 |
|
@see: L{_ComputeIPolicySpecViolation}
|
2492 |
|
|
2493 |
|
"""
|
2494 |
|
if current_group == target_group:
|
2495 |
|
return []
|
2496 |
|
else:
|
2497 |
|
return _compute_fn(ipolicy, instance, cfg)
|
2498 |
|
|
2499 |
|
|
2500 |
|
def _CheckTargetNodeIPolicy(lu, ipolicy, instance, node, cfg, ignore=False,
|
2501 |
|
_compute_fn=_ComputeIPolicyNodeViolation):
|
2502 |
|
"""Checks that the target node is correct in terms of instance policy.
|
2503 |
|
|
2504 |
|
@param ipolicy: The ipolicy to verify
|
2505 |
|
@param instance: The instance object to verify
|
2506 |
|
@param node: The new node to relocate
|
2507 |
|
@type cfg: L{config.ConfigWriter}
|
2508 |
|
@param cfg: Cluster configuration
|
2509 |
|
@param ignore: Ignore violations of the ipolicy
|
2510 |
|
@param _compute_fn: The function to verify ipolicy (unittest only)
|
2511 |
|
@see: L{_ComputeIPolicySpecViolation}
|
2512 |
|
|
2513 |
|
"""
|
2514 |
|
primary_node = lu.cfg.GetNodeInfo(instance.primary_node)
|
2515 |
|
res = _compute_fn(ipolicy, instance, primary_node.group, node.group, cfg)
|
2516 |
|
|
2517 |
|
if res:
|
2518 |
|
msg = ("Instance does not meet target node group's (%s) instance"
|
2519 |
|
" policy: %s") % (node.group, utils.CommaJoin(res))
|
2520 |
|
if ignore:
|
2521 |
|
lu.LogWarning(msg)
|
2522 |
|
else:
|
2523 |
|
raise errors.OpPrereqError(msg, errors.ECODE_INVAL)
|
2524 |
|
|
2525 |
|
|
2526 |
1692 |
class LUInstanceMove(LogicalUnit):
|
2527 |
1693 |
"""Move an instance by data-copying.
|
2528 |
1694 |
|
... | ... | |
3072 |
2238 |
|
3073 |
2239 |
cluster = self.cfg.GetClusterInfo()
|
3074 |
2240 |
|
3075 |
|
node_names = itertools.chain(*(i.all_nodes for i in self.wanted_instances))
|
3076 |
|
nodes = dict(self.cfg.GetMultiNodeInfo(node_names))
|
3077 |
|
|
3078 |
|
groups = dict(self.cfg.GetMultiNodeGroupInfo(node.group
|
3079 |
|
for node in nodes.values()))
|
3080 |
|
|
3081 |
|
group2name_fn = lambda uuid: groups[uuid].name
|
3082 |
|
for instance in self.wanted_instances:
|
3083 |
|
pnode = nodes[instance.primary_node]
|
3084 |
|
|
3085 |
|
if self.op.static or pnode.offline:
|
3086 |
|
remote_state = None
|
3087 |
|
if pnode.offline:
|
3088 |
|
self.LogWarning("Primary node %s is marked offline, returning static"
|
3089 |
|
" information only for instance %s" %
|
3090 |
|
(pnode.name, instance.name))
|
3091 |
|
else:
|
3092 |
|
remote_info = self.rpc.call_instance_info(instance.primary_node,
|
3093 |
|
instance.name,
|
3094 |
|
instance.hypervisor)
|
3095 |
|
remote_info.Raise("Error checking node %s" % instance.primary_node)
|
3096 |
|
remote_info = remote_info.payload
|
3097 |
|
if remote_info and "state" in remote_info:
|
3098 |
|
remote_state = "up"
|
3099 |
|
else:
|
3100 |
|
if instance.admin_state == constants.ADMINST_UP:
|
3101 |
|
remote_state = "down"
|
3102 |
|
else:
|
3103 |
|
remote_state = instance.admin_state
|
3104 |
|
|
3105 |
|
disks = map(compat.partial(self._ComputeDiskStatus, instance, None),
|
3106 |
|
instance.disks)
|
3107 |
|
|
3108 |
|
snodes_group_uuids = [nodes[snode_name].group
|
3109 |
|
for snode_name in instance.secondary_nodes]
|
3110 |
|
|
3111 |
|
result[instance.name] = {
|
3112 |
|
"name": instance.name,
|
3113 |
|
"config_state": instance.admin_state,
|
3114 |
|
"run_state": remote_state,
|
3115 |
|
"pnode": instance.primary_node,
|
3116 |
|
"pnode_group_uuid": pnode.group,
|
3117 |
|
"pnode_group_name": group2name_fn(pnode.group),
|
3118 |
|
"snodes": instance.secondary_nodes,
|
3119 |
|
"snodes_group_uuids": snodes_group_uuids,
|
3120 |
|
"snodes_group_names": map(group2name_fn, snodes_group_uuids),
|
3121 |
|
"os": instance.os,
|
3122 |
|
# this happens to be the same format used for hooks
|
3123 |
|
"nics": _NICListToTuple(self, instance.nics),
|
3124 |
|
"disk_template": instance.disk_template,
|
3125 |
|
"disks": disks,
|
3126 |
|
"hypervisor": instance.hypervisor,
|
3127 |
|
"network_port": instance.network_port,
|
3128 |
|
"hv_instance": instance.hvparams,
|
3129 |
|
"hv_actual": cluster.FillHV(instance, skip_globals=True),
|
3130 |
|
"be_instance": instance.beparams,
|
3131 |
|
"be_actual": cluster.FillBE(instance),
|
3132 |
|
"os_instance": instance.osparams,
|
3133 |
|
"os_actual": cluster.SimpleFillOS(instance.os, instance.osparams),
|
3134 |
|
"serial_no": instance.serial_no,
|
3135 |
|
"mtime": instance.mtime,
|
3136 |
|
"ctime": instance.ctime,
|
3137 |
|
"uuid": instance.uuid,
|
3138 |
|
}
|
3139 |
|
|
3140 |
|
return result
|
3141 |
|
|
3142 |
|
|
3143 |
|
class LUInstanceRecreateDisks(LogicalUnit):
|
3144 |
|
"""Recreate an instance's missing disks.
|
3145 |
|
|
3146 |
|
"""
|
3147 |
|
HPATH = "instance-recreate-disks"
|
3148 |
|
HTYPE = constants.HTYPE_INSTANCE
|
3149 |
|
REQ_BGL = False
|
3150 |
|
|
3151 |
|
_MODIFYABLE = compat.UniqueFrozenset([
|
3152 |
|
constants.IDISK_SIZE,
|
3153 |
|
constants.IDISK_MODE,
|
3154 |
|
])
|
3155 |
|
|
3156 |
|
# New or changed disk parameters may have different semantics
|
3157 |
|
assert constants.IDISK_PARAMS == (_MODIFYABLE | frozenset([
|
3158 |
|
constants.IDISK_ADOPT,
|
3159 |
|
|
3160 |
|
# TODO: Implement support changing VG while recreating
|
3161 |
|
constants.IDISK_VG,
|
3162 |
|
constants.IDISK_METAVG,
|
3163 |
|
constants.IDISK_PROVIDER,
|
3164 |
|
constants.IDISK_NAME,
|
3165 |
|
]))
|
3166 |
|
|
3167 |
|
def _RunAllocator(self):
|
3168 |
|
"""Run the allocator based on input opcode.
|
3169 |
|
|
3170 |
|
"""
|
3171 |
|
be_full = self.cfg.GetClusterInfo().FillBE(self.instance)
|
3172 |
|
|
3173 |
|
# FIXME
|
3174 |
|
# The allocator should actually run in "relocate" mode, but current
|
3175 |
|
# allocators don't support relocating all the nodes of an instance at
|
3176 |
|
# the same time. As a workaround we use "allocate" mode, but this is
|
3177 |
|
# suboptimal for two reasons:
|
3178 |
|
# - The instance name passed to the allocator is present in the list of
|
3179 |
|
# existing instances, so there could be a conflict within the
|
3180 |
|
# internal structures of the allocator. This doesn't happen with the
|
3181 |
|
# current allocators, but it's a liability.
|
3182 |
|
# - The allocator counts the resources used by the instance twice: once
|
3183 |
|
# because the instance exists already, and once because it tries to
|
3184 |
|
# allocate a new instance.
|
3185 |
|
# The allocator could choose some of the nodes on which the instance is
|
3186 |
|
# running, but that's not a problem. If the instance nodes are broken,
|
3187 |
|
# they should be already be marked as drained or offline, and hence
|
3188 |
|
# skipped by the allocator. If instance disks have been lost for other
|
3189 |
|
# reasons, then recreating the disks on the same nodes should be fine.
|
3190 |
|
disk_template = self.instance.disk_template
|
3191 |
|
spindle_use = be_full[constants.BE_SPINDLE_USE]
|
3192 |
|
req = iallocator.IAReqInstanceAlloc(name=self.op.instance_name,
|
3193 |
|
disk_template=disk_template,
|
3194 |
|
tags=list(self.instance.GetTags()),
|
3195 |
|
os=self.instance.os,
|
3196 |
|
nics=[{}],
|
3197 |
|
vcpus=be_full[constants.BE_VCPUS],
|
3198 |
|
memory=be_full[constants.BE_MAXMEM],
|
3199 |
|
spindle_use=spindle_use,
|
3200 |
|
disks=[{constants.IDISK_SIZE: d.size,
|
3201 |
|
constants.IDISK_MODE: d.mode}
|
3202 |
|
for d in self.instance.disks],
|
3203 |
|
hypervisor=self.instance.hypervisor,
|
3204 |
|
node_whitelist=None)
|
3205 |
|
ial = iallocator.IAllocator(self.cfg, self.rpc, req)
|
3206 |
|
|
3207 |
|
ial.Run(self.op.iallocator)
|
3208 |
|
|
3209 |
|
assert req.RequiredNodes() == len(self.instance.all_nodes)
|
3210 |
|
|
3211 |
|
if not ial.success:
|
3212 |
|
raise errors.OpPrereqError("Can't compute nodes using iallocator '%s':"
|
3213 |
|
" %s" % (self.op.iallocator, ial.info),
|
3214 |
|
errors.ECODE_NORES)
|
3215 |
|
|
3216 |
|
self.op.nodes = ial.result
|
3217 |
|
self.LogInfo("Selected nodes for instance %s via iallocator %s: %s",
|
3218 |
|
self.op.instance_name, self.op.iallocator,
|
3219 |
|
utils.CommaJoin(ial.result))
|
3220 |
|
|
3221 |
|
def CheckArguments(self):
|
3222 |
|
if self.op.disks and ht.TNonNegativeInt(self.op.disks[0]):
|
3223 |
|
# Normalize and convert deprecated list of disk indices
|
3224 |
|
self.op.disks = [(idx, {}) for idx in sorted(frozenset(self.op.disks))]
|
3225 |
|
|
3226 |
|
duplicates = utils.FindDuplicates(map(compat.fst, self.op.disks))
|
3227 |
|
if duplicates:
|
3228 |
|
raise errors.OpPrereqError("Some disks have been specified more than"
|
3229 |
|
" once: %s" % utils.CommaJoin(duplicates),
|
3230 |
|
errors.ECODE_INVAL)
|
3231 |
|
|
3232 |
|
# We don't want _CheckIAllocatorOrNode selecting the default iallocator
|
3233 |
|
# when neither iallocator nor nodes are specified
|
3234 |
|
if self.op.iallocator or self.op.nodes:
|
3235 |
|
_CheckIAllocatorOrNode(self, "iallocator", "nodes")
|
3236 |
|
|
3237 |
|
for (idx, params) in self.op.disks:
|
3238 |
|
utils.ForceDictType(params, constants.IDISK_PARAMS_TYPES)
|
3239 |
|
unsupported = frozenset(params.keys()) - self._MODIFYABLE
|
3240 |
|
if unsupported:
|
3241 |
|
raise errors.OpPrereqError("Parameters for disk %s try to change"
|
3242 |
|
" unmodifyable parameter(s): %s" %
|
3243 |
|
(idx, utils.CommaJoin(unsupported)),
|
3244 |
|
errors.ECODE_INVAL)
|
3245 |
|
|
3246 |
|
def ExpandNames(self):
|
3247 |
|
self._ExpandAndLockInstance()
|
3248 |
|
self.recalculate_locks[locking.LEVEL_NODE] = constants.LOCKS_APPEND
|
3249 |
|
|
3250 |
|
if self.op.nodes:
|
3251 |
|
self.op.nodes = [_ExpandNodeName(self.cfg, n) for n in self.op.nodes]
|
3252 |
|
self.needed_locks[locking.LEVEL_NODE] = list(self.op.nodes)
|
3253 |
|
else:
|
3254 |
|
self.needed_locks[locking.LEVEL_NODE] = []
|
3255 |
|
if self.op.iallocator:
|
3256 |
|
# iallocator will select a new node in the same group
|
3257 |
|
self.needed_locks[locking.LEVEL_NODEGROUP] = []
|
3258 |
|
self.needed_locks[locking.LEVEL_NODE_ALLOC] = locking.ALL_SET
|
3259 |
|
|
3260 |
|
self.needed_locks[locking.LEVEL_NODE_RES] = []
|
3261 |
|
|
3262 |
|
def DeclareLocks(self, level):
|
3263 |
|
if level == locking.LEVEL_NODEGROUP:
|
3264 |
|
assert self.op.iallocator is not None
|
3265 |
|
assert not self.op.nodes
|
3266 |
|
assert not self.needed_locks[locking.LEVEL_NODEGROUP]
|
3267 |
|
self.share_locks[locking.LEVEL_NODEGROUP] = 1
|
3268 |
|
# Lock the primary group used by the instance optimistically; this
|
3269 |
|
# requires going via the node before it's locked, requiring
|
3270 |
|
# verification later on
|
3271 |
|
self.needed_locks[locking.LEVEL_NODEGROUP] = \
|
3272 |
|
self.cfg.GetInstanceNodeGroups(self.op.instance_name, primary_only=True)
|
3273 |
|
|
3274 |
|
elif level == locking.LEVEL_NODE:
|
3275 |
|
# If an allocator is used, then we lock all the nodes in the current
|
3276 |
|
# instance group, as we don't know yet which ones will be selected;
|
3277 |
|
# if we replace the nodes without using an allocator, locks are
|
3278 |
|
# already declared in ExpandNames; otherwise, we need to lock all the
|
3279 |
|
# instance nodes for disk re-creation
|
3280 |
|
if self.op.iallocator:
|
3281 |
|
assert not self.op.nodes
|
3282 |
|
assert not self.needed_locks[locking.LEVEL_NODE]
|
3283 |
|
assert len(self.owned_locks(locking.LEVEL_NODEGROUP)) == 1
|
3284 |
|
|
3285 |
|
# Lock member nodes of the group of the primary node
|
3286 |
|
for group_uuid in self.owned_locks(locking.LEVEL_NODEGROUP):
|
3287 |
|
self.needed_locks[locking.LEVEL_NODE].extend(
|
3288 |
|
self.cfg.GetNodeGroup(group_uuid).members)
|
3289 |
|
|
3290 |
|
assert locking.NAL in self.owned_locks(locking.LEVEL_NODE_ALLOC)
|
3291 |
|
elif not self.op.nodes:
|
3292 |
|
self._LockInstancesNodes(primary_only=False)
|
3293 |
|
elif level == locking.LEVEL_NODE_RES:
|
3294 |
|
# Copy node locks
|
3295 |
|
self.needed_locks[locking.LEVEL_NODE_RES] = \
|
3296 |
|
_CopyLockList(self.needed_locks[locking.LEVEL_NODE])
|
3297 |
|
|
3298 |
|
def BuildHooksEnv(self):
|
3299 |
|
"""Build hooks env.
|
3300 |
|
|
3301 |
|
This runs on master, primary and secondary nodes of the instance.
|
3302 |
|
|
3303 |
|
"""
|
3304 |
|
return _BuildInstanceHookEnvByObject(self, self.instance)
|
3305 |
|
|
3306 |
|
def BuildHooksNodes(self):
|
3307 |
|
"""Build hooks nodes.
|
3308 |
|
|
3309 |
|
"""
|
3310 |
|
nl = [self.cfg.GetMasterNode()] + list(self.instance.all_nodes)
|
3311 |
|
return (nl, nl)
|
3312 |
|
|
3313 |
|
def CheckPrereq(self):
|
3314 |
|
"""Check prerequisites.
|
3315 |
|
|
3316 |
|
This checks that the instance is in the cluster and is not running.
|
3317 |
|
|
3318 |
|
"""
|
3319 |
|
instance = self.cfg.GetInstanceInfo(self.op.instance_name)
|
3320 |
|
assert instance is not None, \
|
3321 |
|
"Cannot retrieve locked instance %s" % self.op.instance_name
|
3322 |
|
if self.op.nodes:
|
3323 |
|
if len(self.op.nodes) != len(instance.all_nodes):
|
3324 |
|
raise errors.OpPrereqError("Instance %s currently has %d nodes, but"
|
3325 |
|
" %d replacement nodes were specified" %
|
3326 |
|
(instance.name, len(instance.all_nodes),
|
3327 |
|
len(self.op.nodes)),
|
3328 |
|
errors.ECODE_INVAL)
|
3329 |
|
assert instance.disk_template != constants.DT_DRBD8 or \
|
3330 |
|
len(self.op.nodes) == 2
|
3331 |
|
assert instance.disk_template != constants.DT_PLAIN or \
|
3332 |
|
len(self.op.nodes) == 1
|
3333 |
|
primary_node = self.op.nodes[0]
|
3334 |
|
else:
|
3335 |
|
primary_node = instance.primary_node
|
3336 |
|
if not self.op.iallocator:
|
3337 |
|
_CheckNodeOnline(self, primary_node)
|
3338 |
|
|
3339 |
|
if instance.disk_template == constants.DT_DISKLESS:
|
3340 |
|
raise errors.OpPrereqError("Instance '%s' has no disks" %
|
3341 |
|
self.op.instance_name, errors.ECODE_INVAL)
|
3342 |
|
|
3343 |
|
# Verify if node group locks are still correct
|
3344 |
|
owned_groups = self.owned_locks(locking.LEVEL_NODEGROUP)
|
3345 |
|
if owned_groups:
|
3346 |
|
# Node group locks are acquired only for the primary node (and only
|
3347 |
|
# when the allocator is used)
|
3348 |
|
_CheckInstanceNodeGroups(self.cfg, self.op.instance_name, owned_groups,
|
3349 |
|
primary_only=True)
|
3350 |
|
|
3351 |
|
# if we replace nodes *and* the old primary is offline, we don't
|
3352 |
|
# check the instance state
|
3353 |
|
old_pnode = self.cfg.GetNodeInfo(instance.primary_node)
|
3354 |
|
if not ((self.op.iallocator or self.op.nodes) and old_pnode.offline):
|
3355 |
|
_CheckInstanceState(self, instance, INSTANCE_NOT_RUNNING,
|
3356 |
|
msg="cannot recreate disks")
|
3357 |
|
|
3358 |
|
if self.op.disks:
|
3359 |
|
self.disks = dict(self.op.disks)
|
3360 |
|
else:
|
3361 |
|
self.disks = dict((idx, {}) for idx in range(len(instance.disks)))
|
3362 |
|
|
3363 |
|
maxidx = max(self.disks.keys())
|
3364 |
|
if maxidx >= len(instance.disks):
|
3365 |
|
raise errors.OpPrereqError("Invalid disk index '%s'" % maxidx,
|
3366 |
|
errors.ECODE_INVAL)
|
3367 |
|
|
3368 |
|
if ((self.op.nodes or self.op.iallocator) and
|
3369 |
|
sorted(self.disks.keys()) != range(len(instance.disks))):
|
3370 |
|
raise errors.OpPrereqError("Can't recreate disks partially and"
|
3371 |
|
" change the nodes at the same time",
|
3372 |
|
errors.ECODE_INVAL)
|
3373 |
|
|
3374 |
|
self.instance = instance
|
3375 |
|
|
3376 |
|
if self.op.iallocator:
|
3377 |
|
self._RunAllocator()
|
3378 |
|
# Release unneeded node and node resource locks
|
3379 |
|
_ReleaseLocks(self, locking.LEVEL_NODE, keep=self.op.nodes)
|
3380 |
|
_ReleaseLocks(self, locking.LEVEL_NODE_RES, keep=self.op.nodes)
|
3381 |
|
_ReleaseLocks(self, locking.LEVEL_NODE_ALLOC)
|
3382 |
|
|
3383 |
|
assert not self.glm.is_owned(locking.LEVEL_NODE_ALLOC)
|
3384 |
|
|
3385 |
|
def Exec(self, feedback_fn):
|
3386 |
|
"""Recreate the disks.
|
3387 |
|
|
3388 |
|
"""
|
3389 |
|
instance = self.instance
|
3390 |
|
|
3391 |
|
assert (self.owned_locks(locking.LEVEL_NODE) ==
|
3392 |
|
self.owned_locks(locking.LEVEL_NODE_RES))
|
3393 |
|
|
3394 |
|
to_skip = []
|
3395 |
|
mods = [] # keeps track of needed changes
|
3396 |
|
|
3397 |
|
for idx, disk in enumerate(instance.disks):
|
3398 |
|
try:
|
3399 |
|
changes = self.disks[idx]
|
3400 |
|
except KeyError:
|
3401 |
|
# Disk should not be recreated
|
3402 |
|
to_skip.append(idx)
|
3403 |
|
continue
|
3404 |
|
|
3405 |
|
# update secondaries for disks, if needed
|
3406 |
|
if self.op.nodes and disk.dev_type == constants.LD_DRBD8:
|
3407 |
|
# need to update the nodes and minors
|
3408 |
|
assert len(self.op.nodes) == 2
|
3409 |
|
assert len(disk.logical_id) == 6 # otherwise disk internals
|
3410 |
|
# have changed
|
3411 |
|
(_, _, old_port, _, _, old_secret) = disk.logical_id
|
3412 |
|
new_minors = self.cfg.AllocateDRBDMinor(self.op.nodes, instance.name)
|
3413 |
|
new_id = (self.op.nodes[0], self.op.nodes[1], old_port,
|
3414 |
|
new_minors[0], new_minors[1], old_secret)
|
3415 |
|
assert len(disk.logical_id) == len(new_id)
|
3416 |
|
else:
|
3417 |
|
new_id = None
|
3418 |
|
|
3419 |
|
mods.append((idx, new_id, changes))
|
3420 |
|
|
3421 |
|
# now that we have passed all asserts above, we can apply the mods
|
3422 |
|
# in a single run (to avoid partial changes)
|
3423 |
|
for idx, new_id, changes in mods:
|
3424 |
|
disk = instance.disks[idx]
|
3425 |
|
if new_id is not None:
|
3426 |
|
assert disk.dev_type == constants.LD_DRBD8
|
3427 |
|
disk.logical_id = new_id
|
3428 |
|
if changes:
|
3429 |
|
disk.Update(size=changes.get(constants.IDISK_SIZE, None),
|
3430 |
|
mode=changes.get(constants.IDISK_MODE, None))
|
3431 |
|
|
3432 |
|
# change primary node, if needed
|
3433 |
|
if self.op.nodes:
|
3434 |
|
instance.primary_node = self.op.nodes[0]
|
3435 |
|
self.LogWarning("Changing the instance's nodes, you will have to"
|
3436 |
|
" remove any disks left on the older nodes manually")
|
3437 |
|
|
3438 |
|
if self.op.nodes:
|
3439 |
|
self.cfg.Update(instance, feedback_fn)
|
3440 |
|
|
3441 |
|
# All touched nodes must be locked
|
3442 |
|
mylocks = self.owned_locks(locking.LEVEL_NODE)
|
3443 |
|
assert mylocks.issuperset(frozenset(instance.all_nodes))
|
3444 |
|
_CreateDisks(self, instance, to_skip=to_skip)
|
3445 |
|
|
3446 |
|
|
3447 |
|
def _SafeShutdownInstanceDisks(lu, instance, disks=None):
|
3448 |
|
"""Shutdown block devices of an instance.
|
3449 |
|
|
3450 |
|
This function checks if an instance is running, before calling
|
3451 |
|
_ShutdownInstanceDisks.
|
3452 |
|
|
3453 |
|
"""
|
3454 |
|
_CheckInstanceState(lu, instance, INSTANCE_DOWN, msg="cannot shutdown disks")
|
3455 |
|
_ShutdownInstanceDisks(lu, instance, disks=disks)
|
3456 |
|
|
3457 |
|
|
3458 |
|
def _DiskSizeInBytesToMebibytes(lu, size):
|
3459 |
|
"""Converts a disk size in bytes to mebibytes.
|
3460 |
|
|
3461 |
|
Warns and rounds up if the size isn't an even multiple of 1 MiB.
|
3462 |
|
|
3463 |
|
"""
|
3464 |
|
(mib, remainder) = divmod(size, 1024 * 1024)
|
3465 |
|
|
3466 |
|
if remainder != 0:
|
3467 |
|
lu.LogWarning("Disk size is not an even multiple of 1 MiB; rounding up"
|
3468 |
|
" to not overwrite existing data (%s bytes will not be"
|
3469 |
|
" wiped)", (1024 * 1024) - remainder)
|
3470 |
|
mib += 1
|
3471 |
|
|
3472 |
|
return mib
|
3473 |
|
|
3474 |
|
|
3475 |
|
class LUInstanceGrowDisk(LogicalUnit):
|
3476 |
|
"""Grow a disk of an instance.
|
3477 |
|
|
3478 |
|
"""
|
3479 |
|
HPATH = "disk-grow"
|
3480 |
|
HTYPE = constants.HTYPE_INSTANCE
|
3481 |
|
REQ_BGL = False
|
3482 |
|
|
3483 |
|
def ExpandNames(self):
|
3484 |
|
self._ExpandAndLockInstance()
|
3485 |
|
self.needed_locks[locking.LEVEL_NODE] = []
|
3486 |
|
self.needed_locks[locking.LEVEL_NODE_RES] = []
|
3487 |
|
self.recalculate_locks[locking.LEVEL_NODE] = constants.LOCKS_REPLACE
|
3488 |
|
self.recalculate_locks[locking.LEVEL_NODE_RES] = constants.LOCKS_REPLACE
|
3489 |
|
|
3490 |
|
def DeclareLocks(self, level):
|
3491 |
|
if level == locking.LEVEL_NODE:
|
3492 |
|
self._LockInstancesNodes()
|
3493 |
|
elif level == locking.LEVEL_NODE_RES:
|
3494 |
|
# Copy node locks
|
3495 |
|
self.needed_locks[locking.LEVEL_NODE_RES] = \
|
3496 |
|
_CopyLockList(self.needed_locks[locking.LEVEL_NODE])
|
3497 |
|
|
3498 |
|
def BuildHooksEnv(self):
|
3499 |
|
"""Build hooks env.
|
3500 |
|
|
3501 |
|
This runs on the master, the primary and all the secondaries.
|
3502 |
|
|
3503 |
|
"""
|
3504 |
|
env = {
|
3505 |
|
"DISK": self.op.disk,
|
3506 |
|
"AMOUNT": self.op.amount,
|
3507 |
|
"ABSOLUTE": self.op.absolute,
|
3508 |
|
}
|
3509 |
|
env.update(_BuildInstanceHookEnvByObject(self, self.instance))
|
3510 |
|
return env
|
3511 |
|
|
3512 |
|
def BuildHooksNodes(self):
|
3513 |
|
"""Build hooks nodes.
|
3514 |
|
|
3515 |
|
"""
|
3516 |
|
nl = [self.cfg.GetMasterNode()] + list(self.instance.all_nodes)
|
3517 |
|
return (nl, nl)
|
3518 |
|
|
3519 |
|
def CheckPrereq(self):
|
3520 |
|
"""Check prerequisites.
|
3521 |
|
|
3522 |
|
This checks that the instance is in the cluster.
|
3523 |
|
|
3524 |
|
"""
|
3525 |
|
instance = self.cfg.GetInstanceInfo(self.op.instance_name)
|
3526 |
|
assert instance is not None, \
|
3527 |
|
"Cannot retrieve locked instance %s" % self.op.instance_name
|
3528 |
|
nodenames = list(instance.all_nodes)
|
3529 |
|
for node in nodenames:
|
3530 |
|
_CheckNodeOnline(self, node)
|
3531 |
|
|
3532 |
|
self.instance = instance
|
3533 |
|
|
3534 |
|
if instance.disk_template not in constants.DTS_GROWABLE:
|
3535 |
|
raise errors.OpPrereqError("Instance's disk layout does not support"
|
3536 |
|
" growing", errors.ECODE_INVAL)
|
3537 |
|
|
3538 |
|
self.disk = instance.FindDisk(self.op.disk)
|
3539 |
|
|
3540 |
|
if self.op.absolute:
|
3541 |
|
self.target = self.op.amount
|
3542 |
|
self.delta = self.target - self.disk.size
|
3543 |
|
if self.delta < 0:
|
3544 |
|
raise errors.OpPrereqError("Requested size (%s) is smaller than "
|
3545 |
|
"current disk size (%s)" %
|
3546 |
|
(utils.FormatUnit(self.target, "h"),
|
3547 |
|
utils.FormatUnit(self.disk.size, "h")),
|
3548 |
|
errors.ECODE_STATE)
|
3549 |
|
else:
|
3550 |
|
self.delta = self.op.amount
|
3551 |
|
self.target = self.disk.size + self.delta
|
3552 |
|
if self.delta < 0:
|
3553 |
|
raise errors.OpPrereqError("Requested increment (%s) is negative" %
|
3554 |
|
utils.FormatUnit(self.delta, "h"),
|
3555 |
|
errors.ECODE_INVAL)
|
3556 |
|
|
3557 |
|
self._CheckDiskSpace(nodenames, self.disk.ComputeGrowth(self.delta))
|
3558 |
|
|
3559 |
|
def _CheckDiskSpace(self, nodenames, req_vgspace):
|
3560 |
|
template = self.instance.disk_template
|
3561 |
|
if template not in (constants.DTS_NO_FREE_SPACE_CHECK):
|
3562 |
|
# TODO: check the free disk space for file, when that feature will be
|
3563 |
|
# supported
|
3564 |
|
nodes = map(self.cfg.GetNodeInfo, nodenames)
|
3565 |
|
es_nodes = filter(lambda n: _IsExclusiveStorageEnabledNode(self.cfg, n),
|
3566 |
|
nodes)
|
3567 |
|
if es_nodes:
|
3568 |
|
# With exclusive storage we need to something smarter than just looking
|
3569 |
|
# at free space; for now, let's simply abort the operation.
|
3570 |
|
raise errors.OpPrereqError("Cannot grow disks when exclusive_storage"
|
3571 |
|
" is enabled", errors.ECODE_STATE)
|
3572 |
|
_CheckNodesFreeDiskPerVG(self, nodenames, req_vgspace)
|
3573 |
|
|
3574 |
|
def Exec(self, feedback_fn):
|
3575 |
|
"""Execute disk grow.
|
3576 |
|
|
3577 |
|
"""
|
3578 |
|
instance = self.instance
|
3579 |
|
disk = self.disk
|
3580 |
|
|
3581 |
|
assert set([instance.name]) == self.owned_locks(locking.LEVEL_INSTANCE)
|
3582 |
|
assert (self.owned_locks(locking.LEVEL_NODE) ==
|
3583 |
|
self.owned_locks(locking.LEVEL_NODE_RES))
|
3584 |
|
|
3585 |
|
wipe_disks = self.cfg.GetClusterInfo().prealloc_wipe_disks
|
3586 |
|
|
3587 |
|
disks_ok, _ = _AssembleInstanceDisks(self, self.instance, disks=[disk])
|
3588 |
|
if not disks_ok:
|
3589 |
|
raise errors.OpExecError("Cannot activate block device to grow")
|
3590 |
|
|
3591 |
|
feedback_fn("Growing disk %s of instance '%s' by %s to %s" %
|
3592 |
|
(self.op.disk, instance.name,
|
3593 |
|
utils.FormatUnit(self.delta, "h"),
|
3594 |
|
utils.FormatUnit(self.target, "h")))
|
3595 |
|
|
3596 |
|
# First run all grow ops in dry-run mode
|
3597 |
|
for node in instance.all_nodes:
|
3598 |
|
self.cfg.SetDiskID(disk, node)
|
3599 |
|
result = self.rpc.call_blockdev_grow(node, (disk, instance), self.delta,
|
3600 |
|
True, True)
|
3601 |
|
result.Raise("Dry-run grow request failed to node %s" % node)
|
3602 |
|
|
3603 |
|
if wipe_disks:
|
3604 |
|
# Get disk size from primary node for wiping
|
3605 |
|
result = self.rpc.call_blockdev_getsize(instance.primary_node, [disk])
|
3606 |
|
result.Raise("Failed to retrieve disk size from node '%s'" %
|
3607 |
|
instance.primary_node)
|