Revision 7eb9d8f7 lib/cmdlib.py
| b/lib/cmdlib.py | ||
|---|---|---|
| 2452 | 2452 |
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""" |
| 2454 | 2454 |
_OP_REQP = ["output_fields", "names"] |
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REQ_BGL = False |
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| 2455 | 2456 |
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def CheckPrereq(self): |
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"""Check prerequisites. |
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This checks that the fields required are valid output fields. |
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""" |
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def ExpandNames(self): |
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self.dynamic_fields = frozenset(["oper_state", "oper_ram", "status"]) |
| 2463 | 2459 |
_CheckOutputFields(static=["name", "os", "pnode", "snodes", |
| 2464 | 2460 |
"admin_state", "admin_ram", |
| ... | ... | |
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dynamic=self.dynamic_fields, |
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selected=self.op.output_fields) |
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self.wanted = _GetWantedInstances(self, self.op.names) |
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self.needed_locks = {}
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self.share_locks[locking.LEVEL_INSTANCE] = 1 |
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self.share_locks[locking.LEVEL_NODE] = 1 |
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# TODO: we could lock instances (and nodes) only if the user asked for |
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# dynamic fields. For that we need atomic ways to get info for a group of |
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# instances from the config, though. |
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if not self.op.names: |
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self.needed_locks[locking.LEVEL_INSTANCE] = None # Acquire all |
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else: |
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self.needed_locks[locking.LEVEL_INSTANCE] = \ |
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_GetWantedInstances(self, self.op.names) |
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self.needed_locks[locking.LEVEL_NODE] = [] |
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self.recalculate_locks[locking.LEVEL_NODE] = 'replace' |
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def DeclareLocks(self, level): |
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# TODO: locking of nodes could be avoided when not querying them |
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if level == locking.LEVEL_NODE: |
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self._LockInstancesNodes() |
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def CheckPrereq(self): |
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"""Check prerequisites. |
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""" |
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# This of course is valid only if we locked the instances |
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self.wanted = self.needed_locks[locking.LEVEL_INSTANCE] |
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|
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def Exec(self, feedback_fn): |
| 2473 | 2495 |
"""Computes the list of nodes and their attributes. |
Also available in: Unified diff