Use node UUIDs for locking instead of node names
[ganeti-local] / lib / cmdlib / instance.py
index 77c4488..653ae60 100644 (file)
@@ -562,7 +562,7 @@ class LUInstanceCreate(LogicalUnit):
         if self.needed_locks[locking.LEVEL_NODE] is not locking.ALL_SET:
           self.needed_locks[locking.LEVEL_NODE].append(self.op.src_node_uuid)
         if not os.path.isabs(src_path):
-          self.op.src_path = src_path = \
+          self.op.src_path = \
             utils.PathJoin(pathutils.EXPORT_DIR, src_path)
 
     self.needed_locks[locking.LEVEL_NODE_RES] = \
@@ -670,13 +670,13 @@ class LUInstanceCreate(LogicalUnit):
       locked_nodes = self.owned_locks(locking.LEVEL_NODE)
       exp_list = self.rpc.call_export_list(locked_nodes)
       found = False
-      for node in exp_list:
-        if exp_list[node].fail_msg:
+      for node_uuid in exp_list:
+        if exp_list[node_uuid].fail_msg:
           continue
-        if self.op.src_path in exp_list[node].payload:
+        if self.op.src_path in exp_list[node_uuid].payload:
           found = True
-          self.op.src_node = node
-          self.op.src_node_uuid = self.cfg.GetNodeInfoByName(node).uuid
+          self.op.src_node = self.cfg.GetNodeInfo(node_uuid).name
+          self.op.src_node_uuid = node_uuid
           self.op.src_path = utils.PathJoin(pathutils.EXPORT_DIR,
                                             self.op.src_path)
           break
@@ -730,8 +730,10 @@ class LUInstanceCreate(LogicalUnit):
         if einfo.has_option(constants.INISECT_INS, "nic%d_mac" % idx):
           ndict = {}
           for name in list(constants.NICS_PARAMETERS) + ["ip", "mac"]:
-            v = einfo.get(constants.INISECT_INS, "nic%d_%s" % (idx, name))
-            ndict[name] = v
+            nic_param_name = "nic%d_%s" % (idx, name)
+            if einfo.has_option(constants.INISECT_INS, nic_param_name):
+              v = einfo.get(constants.INISECT_INS, nic_param_name)
+              ndict[name] = v
           nics.append(ndict)
         else:
           break
@@ -1639,7 +1641,7 @@ class LUInstanceMove(LogicalUnit):
     (self.op.target_node_uuid, self.op.target_node) = \
       ExpandNodeUuidAndName(self.cfg, self.op.target_node_uuid,
                             self.op.target_node)
-    self.needed_locks[locking.LEVEL_NODE] = [self.op.target_node]
+    self.needed_locks[locking.LEVEL_NODE] = [self.op.target_node_uuid]
     self.needed_locks[locking.LEVEL_NODE_RES] = []
     self.recalculate_locks[locking.LEVEL_NODE] = constants.LOCKS_APPEND
 
@@ -1852,9 +1854,9 @@ class LUInstanceMultiAlloc(NoHooksLU):
                                  " pnode/snode while others do not",
                                  errors.ECODE_INVAL)
 
-    if self.op.iallocator is None:
+    if not has_nodes and self.op.iallocator is None:
       default_iallocator = self.cfg.GetDefaultIAllocator()
-      if default_iallocator and has_nodes:
+      if default_iallocator:
         self.op.iallocator = default_iallocator
       else:
         raise errors.OpPrereqError("No iallocator or nodes on the instances"
@@ -1894,11 +1896,11 @@ class LUInstanceMultiAlloc(NoHooksLU):
       for inst in self.op.instances:
         (inst.pnode_uuid, inst.pnode) = \
           ExpandNodeUuidAndName(self.cfg, inst.pnode_uuid, inst.pnode)
-        nodeslist.append(inst.pnode)
+        nodeslist.append(inst.pnode_uuid)
         if inst.snode is not None:
           (inst.snode_uuid, inst.snode) = \
             ExpandNodeUuidAndName(self.cfg, inst.snode_uuid, inst.snode)
-          nodeslist.append(inst.snode)
+          nodeslist.append(inst.snode_uuid)
 
       self.needed_locks[locking.LEVEL_NODE] = nodeslist
       # Lock resources of instance's primary and secondary nodes (copy to
@@ -1909,36 +1911,37 @@ class LUInstanceMultiAlloc(NoHooksLU):
     """Check prerequisite.
 
     """
-    cluster = self.cfg.GetClusterInfo()
-    default_vg = self.cfg.GetVGName()
-    ec_id = self.proc.GetECId()
+    if self.op.iallocator:
+      cluster = self.cfg.GetClusterInfo()
+      default_vg = self.cfg.GetVGName()
+      ec_id = self.proc.GetECId()
 
-    if self.op.opportunistic_locking:
-      # Only consider nodes for which a lock is held
-      node_whitelist = self.cfg.GetNodeNames(
-                         list(self.owned_locks(locking.LEVEL_NODE)))
-    else:
-      node_whitelist = None
+      if self.op.opportunistic_locking:
+        # Only consider nodes for which a lock is held
+        node_whitelist = self.cfg.GetNodeNames(
+                           list(self.owned_locks(locking.LEVEL_NODE)))
+      else:
+        node_whitelist = None
 
-    insts = [_CreateInstanceAllocRequest(op, ComputeDisks(op, default_vg),
-                                         _ComputeNics(op, cluster, None,
-                                                      self.cfg, ec_id),
-                                         _ComputeFullBeParams(op, cluster),
-                                         node_whitelist)
-             for op in self.op.instances]
+      insts = [_CreateInstanceAllocRequest(op, ComputeDisks(op, default_vg),
+                                           _ComputeNics(op, cluster, None,
+                                                        self.cfg, ec_id),
+                                           _ComputeFullBeParams(op, cluster),
+                                           node_whitelist)
+               for op in self.op.instances]
 
-    req = iallocator.IAReqMultiInstanceAlloc(instances=insts)
-    ial = iallocator.IAllocator(self.cfg, self.rpc, req)
+      req = iallocator.IAReqMultiInstanceAlloc(instances=insts)
+      ial = iallocator.IAllocator(self.cfg, self.rpc, req)
 
-    ial.Run(self.op.iallocator)
+      ial.Run(self.op.iallocator)
 
-    if not ial.success:
-      raise errors.OpPrereqError("Can't compute nodes using"
-                                 " iallocator '%s': %s" %
-                                 (self.op.iallocator, ial.info),
-                                 errors.ECODE_NORES)
+      if not ial.success:
+        raise errors.OpPrereqError("Can't compute nodes using"
+                                   " iallocator '%s': %s" %
+                                   (self.op.iallocator, ial.info),
+                                   errors.ECODE_NORES)
 
-    self.ia_result = ial.result
+      self.ia_result = ial.result
 
     if self.op.dry_run:
       self.dry_run_result = objects.FillDict(self._ConstructPartialResult(), {
@@ -1949,35 +1952,44 @@ class LUInstanceMultiAlloc(NoHooksLU):
     """Contructs the partial result.
 
     """
-    (allocatable, failed) = self.ia_result
+    if self.op.iallocator:
+      (allocatable, failed_insts) = self.ia_result
+      allocatable_insts = map(compat.fst, allocatable)
+    else:
+      allocatable_insts = [op.instance_name for op in self.op.instances]
+      failed_insts = []
+
     return {
-      opcodes.OpInstanceMultiAlloc.ALLOCATABLE_KEY:
-        map(compat.fst, allocatable),
-      opcodes.OpInstanceMultiAlloc.FAILED_KEY: failed,
+      opcodes.OpInstanceMultiAlloc.ALLOCATABLE_KEY: allocatable_insts,
+      opcodes.OpInstanceMultiAlloc.FAILED_KEY: failed_insts,
       }
 
   def Exec(self, feedback_fn):
     """Executes the opcode.
 
     """
-    op2inst = dict((op.instance_name, op) for op in self.op.instances)
-    (allocatable, failed) = self.ia_result
-
     jobs = []
-    for (name, node_names) in allocatable:
-      op = op2inst.pop(name)
+    if self.op.iallocator:
+      op2inst = dict((op.instance_name, op) for op in self.op.instances)
+      (allocatable, failed) = self.ia_result
 
-      (op.pnode_uuid, op.pnode) = \
-        ExpandNodeUuidAndName(self.cfg, None, node_names[0])
-      if len(node_names) > 1:
-        (op.snode_uuid, op.snode) = \
-          ExpandNodeUuidAndName(self.cfg, None, node_names[1])
+      for (name, node_names) in allocatable:
+        op = op2inst.pop(name)
 
-      jobs.append([op])
+        (op.pnode_uuid, op.pnode) = \
+          ExpandNodeUuidAndName(self.cfg, None, node_names[0])
+        if len(node_names) > 1:
+          (op.snode_uuid, op.snode) = \
+            ExpandNodeUuidAndName(self.cfg, None, node_names[1])
 
-    missing = set(op2inst.keys()) - set(failed)
-    assert not missing, \
-      "Iallocator did return incomplete result: %s" % utils.CommaJoin(missing)
+          jobs.append([op])
+
+        missing = set(op2inst.keys()) - set(failed)
+        assert not missing, \
+          "Iallocator did return incomplete result: %s" % \
+          utils.CommaJoin(missing)
+    else:
+      jobs.extend([op] for op in self.op.instances)
 
     return ResultWithJobs(jobs, **self._ConstructPartialResult())
 
@@ -2337,8 +2349,8 @@ class LUInstanceSetParams(LogicalUnit):
   def CheckArguments(self):
     if not (self.op.nics or self.op.disks or self.op.disk_template or
             self.op.hvparams or self.op.beparams or self.op.os_name or
-            self.op.offline is not None or self.op.runtime_mem or
-            self.op.pnode):
+            self.op.osparams or self.op.offline is not None or
+            self.op.runtime_mem or self.op.pnode):
       raise errors.OpPrereqError("No changes submitted", errors.ECODE_INVAL)
 
     if self.op.hvparams: