Module node

source code

Logical units dealing with nodes.

Classes

[hide private]

LUNodeAdd
Logical unit for adding node to the cluster.

LUNodeSetParams
Modifies the parameters of a node.

LUNodePowercycle
Powercycles a node.

LUNodeEvacuate
Evacuates instances off a list of nodes.

LUNodeMigrate
Migrate all instances from a node.

LUNodeModifyStorage
Logical unit for modifying a storage volume on a node.

NodeQuery

LUNodeQuery
Logical unit for querying nodes.

LUNodeQueryvols
Logical unit for getting volumes on node(s).

LUNodeQueryStorage
Logical unit for getting information on storage units on node(s).

LUNodeRemove
Logical unit for removing a node.

LURepairNodeStorage
Repairs the volume group on a node.

Functions

[hide private]

_DecideSelfPromotion(lu, exceptions=None)
Decide whether I should promote myself as a master candidate.

source code

_CheckNodeHasSecondaryIP(lu, node, secondary_ip, prereq)
Ensure that a node has the given secondary ip.

source code

_GetNodeInstancesInner(cfg, fn)

source code

_GetNodePrimaryInstances(cfg, node_uuid)
Returns primary instances on a node.

source code

_GetNodeSecondaryInstances(cfg, node_uuid)
Returns secondary instances on a node.

source code

_GetNodeInstances(cfg, node_uuid)
Returns a list of all primary and secondary instances on a node.

source code

_GetStorageTypeArgs(cfg, storage_type)
Returns the arguments for a storage type.

source code

_CheckOutputFields(static, dynamic, selected)
Checks whether all selected fields are valid.

source code

Imports: logging, operator, constants, errors, locking, netutils, objects, opcodes, qlang, query, rpc, utils, iallocator, LogicalUnit, NoHooksLU, QueryBase, ResultWithJobs, CheckParamsNotGlobal, MergeAndVerifyHvState, MergeAndVerifyDiskState, IsExclusiveStorageEnabledNode, CheckNodePVs, RedistributeAncillaryFiles, ExpandNodeUuidAndName, ShareAll, SupportsOob, CheckInstanceState, INSTANCE_DOWN, GetUpdatedParams, AdjustCandidatePool, CheckIAllocatorOrNode, LoadNodeEvacResult, GetWantedNodes, MapInstanceLvsToNodes, RunPostHook, FindFaultyInstanceDisks, CheckStorageTypeEnabled

Function Details

[hide private]

_CheckNodeHasSecondaryIP(lu, node, secondary_ip, prereq)

source code

Ensure that a node has the given secondary ip.

Parameters:

lu (LogicalUnit) - the LU on behalf of which we make the check
node (objects.Node) - the node to check
secondary_ip (string) - the ip to check
prereq (boolean) - whether to throw a prerequisite or an execute error

Raises:

errors.OpPrereqError - if the node doesn't have the ip, and prereq=True
errors.OpExecError - if the node doesn't have the ip, and prereq=False

_CheckOutputFields(static, dynamic, selected)

source code

Checks whether all selected fields are valid.

Parameters:

static (utils.FieldSet) - static fields set
dynamic (utils.FieldSet) - dynamic fields set