+class _ExtStorageQuery(_QueryBase):
+ FIELDS = query.EXTSTORAGE_FIELDS
+
+ def ExpandNames(self, lu):
+ # Lock all nodes in shared mode
+ # Temporary removal of locks, should be reverted later
+ # TODO: reintroduce locks when they are lighter-weight
+ lu.needed_locks = {}
+ #self.share_locks[locking.LEVEL_NODE] = 1
+ #self.needed_locks[locking.LEVEL_NODE] = locking.ALL_SET
+
+ # The following variables interact with _QueryBase._GetNames
+ if self.names:
+ self.wanted = self.names
+ else:
+ self.wanted = locking.ALL_SET
+
+ self.do_locking = self.use_locking
+
+ def DeclareLocks(self, lu, level):
+ pass
+
+ @staticmethod
+ def _DiagnoseByProvider(rlist):
+ """Remaps a per-node return list into an a per-provider per-node dictionary
+
+ @param rlist: a map with node names as keys and ExtStorage objects as values
+
+ @rtype: dict
+ @return: a dictionary with extstorage providers as keys and as
+ value another map, with nodes as keys and tuples of
+ (path, status, diagnose, parameters) as values, eg::
+
+ {"provider1": {"node1": [(/usr/lib/..., True, "", [])]
+ "node2": [(/srv/..., False, "missing file")]
+ "node3": [(/srv/..., True, "", [])]
+ }
+
+ """
+ all_es = {}
+ # we build here the list of nodes that didn't fail the RPC (at RPC
+ # level), so that nodes with a non-responding node daemon don't
+ # make all OSes invalid
+ good_nodes = [node_name for node_name in rlist
+ if not rlist[node_name].fail_msg]
+ for node_name, nr in rlist.items():
+ if nr.fail_msg or not nr.payload:
+ continue
+ for (name, path, status, diagnose, params) in nr.payload:
+ if name not in all_es:
+ # build a list of nodes for this os containing empty lists
+ # for each node in node_list
+ all_es[name] = {}
+ for nname in good_nodes:
+ all_es[name][nname] = []
+ # convert params from [name, help] to (name, help)
+ params = [tuple(v) for v in params]
+ all_es[name][node_name].append((path, status, diagnose, params))
+ return all_es
+
+ def _GetQueryData(self, lu):
+ """Computes the list of nodes and their attributes.
+
+ """
+ # Locking is not used
+ assert not (compat.any(lu.glm.is_owned(level)
+ for level in locking.LEVELS
+ if level != locking.LEVEL_CLUSTER) or
+ self.do_locking or self.use_locking)
+
+ valid_nodes = [node.name
+ for node in lu.cfg.GetAllNodesInfo().values()
+ if not node.offline and node.vm_capable]
+ pol = self._DiagnoseByProvider(lu.rpc.call_extstorage_diagnose(valid_nodes))
+
+ data = {}
+
+ nodegroup_list = lu.cfg.GetNodeGroupList()
+
+ for (es_name, es_data) in pol.items():
+ # For every provider compute the nodegroup validity.
+ # To do this we need to check the validity of each node in es_data
+ # and then construct the corresponding nodegroup dict:
+ # { nodegroup1: status
+ # nodegroup2: status
+ # }
+ ndgrp_data = {}
+ for nodegroup in nodegroup_list:
+ ndgrp = lu.cfg.GetNodeGroup(nodegroup)
+
+ nodegroup_nodes = ndgrp.members
+ nodegroup_name = ndgrp.name
+ node_statuses = []
+
+ for node in nodegroup_nodes:
+ if node in valid_nodes:
+ if es_data[node] != []:
+ node_status = es_data[node][0][1]
+ node_statuses.append(node_status)
+ else:
+ node_statuses.append(False)
+
+ if False in node_statuses:
+ ndgrp_data[nodegroup_name] = False
+ else:
+ ndgrp_data[nodegroup_name] = True
+
+ # Compute the provider's parameters
+ parameters = set()
+ for idx, esl in enumerate(es_data.values()):
+ valid = bool(esl and esl[0][1])
+ if not valid:
+ break
+
+ node_params = esl[0][3]
+ if idx == 0:
+ # First entry
+ parameters.update(node_params)
+ else:
+ # Filter out inconsistent values
+ parameters.intersection_update(node_params)
+
+ params = list(parameters)
+
+ # Now fill all the info for this provider
+ info = query.ExtStorageInfo(name=es_name, node_status=es_data,
+ nodegroup_status=ndgrp_data,
+ parameters=params)
+
+ data[es_name] = info
+
+ # Prepare data in requested order
+ return [data[name] for name in self._GetNames(lu, pol.keys(), None)
+ if name in data]
+
+
+class LUExtStorageDiagnose(NoHooksLU):
+ """Logical unit for ExtStorage diagnose/query.
+
+ """
+ REQ_BGL = False
+
+ def CheckArguments(self):
+ self.eq = _ExtStorageQuery(qlang.MakeSimpleFilter("name", self.op.names),
+ self.op.output_fields, False)
+
+ def ExpandNames(self):
+ self.eq.ExpandNames(self)
+
+ def Exec(self, feedback_fn):
+ return self.eq.OldStyleQuery(self)
+
+
projects / ganeti-local / blobdiff