Module netapp_ontap.resources.client_lock

Copyright © 2022 NetApp Inc. All rights reserved.

Overview

A lock is a synchronization mechanism for enforcing limits on concurrent access to files where many clients can be accessing the same file at the same time. Locks can be viewed or broken according to a wide range of query fields that are presented in the lock information definition.
It is recommended that you provide as many fields as possible to optimize query processing.

Examples

Retrieving locks with all fields for all SVMs


from netapp_ontap import HostConnection
from netapp_ontap.resources import ClientLock

with HostConnection("<mgmt-ip>", username="admin", password="password", verify=False):
    print(list(ClientLock.get_collection(return_timeout=15, fields="*")))

[
    ClientLock(
        {
            "share_lock": {"soft": False, "mode": "read_write_deny_write_delete"},
            "type": "share_level",
            "interface": {
                "ip": {"address": "10.140.115.95"},
                "uuid": "6bf26e25-9ae4-11eb-8597-0050568ec154",
                "name": "vs1.data",
            },
            "constituent": False,
            "owner_id": "feff-0206000000020000000204000000000000000000000000ffff0a4a07161053010001000000030000006c00000000000000",
            "client_address": "10.74.7.22",
            "svm": {"uuid": "5b4b6847-9ae4-11eb-8597-0050568ec154", "name": "vs1"},
            "uuid": "bf03d8b4-e145-498a-902d-b9fe5d546d18",
            "protocol": "cifs",
            "volume": {
                "uuid": "429dcc79-9af2-11eb-b313-0050568ec154",
                "name": "test_vol1",
            },
            "state": "granted",
            "smb": {
                "connect_state": "connected",
                "open_type": "durable",
                "open_group_id": "71756e2325a7eb11843f005056a4731c101068450bcdffff1c2c000000000000",
            },
            "node": {
                "uuid": "1f29b875-9ae3-11eb-8597-0050568ec154",
                "name": "bshalini-vsim3",
            },
            "path": "/test_vol1/Demo406.TXT",
        }
    ),
    ClientLock(
        {
            "type": "op_lock",
            "oplock_level": "batch",
            "interface": {
                "ip": {"address": "10.140.115.95"},
                "uuid": "6bf26e25-9ae4-11eb-8597-0050568ec154",
                "name": "vs1.data",
            },
            "constituent": False,
            "owner_id": "feff-0206000000020000000204000000000000000000000000ffff0a4a07161053010001000000030000006c00000000000000",
            "client_address": "10.74.7.22",
            "svm": {"uuid": "5b4b6847-9ae4-11eb-8597-0050568ec154", "name": "vs1"},
            "uuid": "0c33d18d-dcbc-492a-81b3-4c5740c46172",
            "protocol": "cifs",
            "volume": {
                "uuid": "429dcc79-9af2-11eb-b313-0050568ec154",
                "name": "test_vol1",
            },
            "state": "granted",
            "smb": {
                "connect_state": "connected",
                "open_group_id": "71756e2325a7eb11843f005056a4731c101068450bcdffff1c2c000000000000",
            },
            "node": {
                "uuid": "1f29b875-9ae3-11eb-8597-0050568ec154",
                "name": "bshalini-vsim3",
            },
            "path": "/test_vol1/Demo406.TXT",
        }
    ),
]


Retrieving locks of a specific volume


from netapp_ontap import HostConnection
from netapp_ontap.resources import ClientLock

with HostConnection("<mgmt-ip>", username="admin", password="password", verify=False):
    print(
        list(
            ClientLock.get_collection(
                return_timeout=15,
                fields="*",
                **{"volume.uuid": "429dcc79-9af2-11eb-b313-0050568ec154"}
            )
        )
    )

[
    ClientLock(
        {
            "interface": {
                "uuid": "6bf26e25-9ae4-11eb-8597-0050568ec154",
                "name": "vs1.data",
            },
            "svm": {"uuid": "5b4b6847-9ae4-11eb-8597-0050568ec154", "name": "vs1"},
            "uuid": "be1cdf00-37f1-4477-b6d0-bba8c4fa8c67",
            "volume": {
                "uuid": "429dcc79-9af2-11eb-b313-0050568ec154",
                "name": "test_vol1",
            },
            "path": "/test_vol1/Demo408.TXT",
        }
    ),
    ClientLock(
        {
            "interface": {
                "uuid": "6bf26e25-9ae4-11eb-8597-0050568ec154",
                "name": "vs1.data",
            },
            "svm": {"uuid": "5b4b6847-9ae4-11eb-8597-0050568ec154", "name": "vs1"},
            "uuid": "393cc06e-8b37-4f49-b09a-74d1eef79368",
            "volume": {
                "uuid": "429dcc79-9af2-11eb-b313-0050568ec154",
                "name": "test_vol1",
            },
            "path": "/test_vol1/Demo408.TXT",
        }
    ),
]


Retrieving the lock for a specific UUID


from netapp_ontap import HostConnection
from netapp_ontap.resources import ClientLock

with HostConnection("<mgmt-ip>", username="admin", password="password", verify=False):
    resource = ClientLock(uuid="be1cdf00-37f1-4477-b6d0-bba8c4fa8c67")
    resource.get()
    print(resource)

ClientLock(
    {
        "share_lock": {"soft": False, "mode": "read_write_deny_write_delete"},
        "type": "share_level",
        "interface": {
            "ip": {"address": "10.140.115.95"},
            "uuid": "6bf26e25-9ae4-11eb-8597-0050568ec154",
            "name": "vs1.data",
        },
        "constituent": False,
        "owner_id": "feff-0206000000020000000204000000000000000000000000ffff0a4a07161053010001000000030000006c00000000000000",
        "client_address": "10.74.7.22",
        "svm": {"uuid": "5b4b6847-9ae4-11eb-8597-0050568ec154", "name": "vs1"},
        "uuid": "be1cdf00-37f1-4477-b6d0-bba8c4fa8c67",
        "protocol": "cifs",
        "volume": {"uuid": "429dcc79-9af2-11eb-b313-0050568ec154", "name": "test_vol1"},
        "state": "granted",
        "smb": {
            "connect_state": "connected",
            "open_type": "durable",
            "open_group_id": "71756e2325a7eb11843f005056a4731c101068450bcdffff1c2c000000000000",
        },
        "node": {
            "uuid": "1f29b875-9ae3-11eb-8597-0050568ec154",
            "name": "bshalini-vsim3",
        },
        "path": "/test_vol1/Demo406.TXT",
    }
)


Deleting the lock for a specific UUID


from netapp_ontap import HostConnection
from netapp_ontap.resources import ClientLock

with HostConnection("<mgmt-ip>", username="admin", password="password", verify=False):
    resource = ClientLock(uuid="be1cdf00-37f1-4477-b6d0-bba8c4fa8c67")
    resource.delete()


Deleting all locks for a specific protocol


from netapp_ontap import HostConnection
from netapp_ontap.resources import ClientLock

with HostConnection("<mgmt-ip>", username="admin", password="password", verify=False):
    resource = ClientLock()
    resource.delete(protocol="cifs")


Classes

class ClientLock (*args, **kwargs)

This object represents locks on a volume.

Initialize the instance of the resource.

Any keyword arguments are set on the instance as properties. For example, if the class was named 'MyResource', then this statement would be true:

MyResource(name='foo').name == 'foo'

Args

*args
Each positional argument represents a parent key as used in the URL of the object. That is, each value will be used to fill in a segment of the URL which refers to some parent object. The order of these arguments must match the order they are specified in the URL, from left to right.
**kwargs
each entry will have its key set as an attribute name on the instance and its value will be the value of that attribute.

Ancestors

Static methods

def count_collection(*args, connection: HostConnection = None, **kwargs) -> int

Fetch a count of all objects of this type from the host.

This calls GET on the object to determine the number of records. It is more efficient than calling get_collection() because it will not construct any objects. Query parameters can be passed in as kwargs to determine a count of objects that match some filtered criteria.

Args

*args
Each entry represents a parent key which is used to build the path to the child object. If the URL definition were /api/foos/{foo.name}/bars, then to get the count of bars for a particular foo, the foo.name value should be passed.
connection
The HostConnection object to use for this API call. If unset, tries to use the connection which is set globally for the library or from the current context.
**kwargs
Any key/value pairs passed will be sent as query parameters to the host. These query parameters can affect the count. A return_records query param will be ignored.

Returns

On success, returns an integer count of the objects of this type. On failure, returns -1.

Raises

NetAppRestError: If the API call returned a status code >= 400, or if there is no connection available to use either passed in or on the library.

def delete_collection(*args, records: Iterable[_ForwardRef('ClientLock')] = None, body: Union[Resource, dict] = None, poll: bool = True, poll_interval: Union[int, NoneType] = None, poll_timeout: Union[int, NoneType] = None, connection: HostConnection = None, **kwargs) -> NetAppResponse

Deletes locks of given parameter.

  • vserver locks break

Learn more


Delete all objects in a collection which match the given query.

All records on the host which match the query will be deleted.

Args

*args
Each entry represents a parent key which is used to build the path to the child object. If the URL definition were /api/foos/{foo.name}/bars, then to delete the collection of bars for a particular foo, the foo.name value should be passed.
records
Can be provided in place of a query. If so, this list of objects will be deleted from the host.
body
The body of the delete request. This could be a Resource instance or a dictionary object.
poll
If set to True, the call will not return until the asynchronous job on the host has completed. Has no effect if the host did not return a job response.
poll_interval
If the operation returns a job, this specifies how often to query the job for updates.
poll_timeout
If the operation returns a job, this specifies how long to continue monitoring the job's status for completion.
connection
The HostConnection object to use for this API call. If unset, tries to use the connection which is set globally for the library or from the current context.
**kwargs
Any key/value pairs passed will be sent as query parameters to the host. Only resources matching this query will be deleted.

Returns

A NetAppResponse object containing the details of the HTTP response.

Raises

NetAppRestError: If the API call returned a status code >= 400

def find(*args, connection: HostConnection = None, **kwargs) -> Resource

Retrieves locks details.

  • vserver locks show

Learn more


Find an instance of an object on the host given a query.

The host will be queried with the provided key/value pairs to find a matching resource. If 0 are found, None will be returned. If more than 1 is found, an error will be raised or returned. If there is exactly 1 matching record, then it will be returned.

Args

*args
Each entry represents a parent key which is used to build the path to the child object. If the URL definition were /api/foos/{foo.name}/bars, then to find a bar for a particular foo, the foo.name value should be passed.
connection
The HostConnection object to use for this API call. If unset, tries to use the connection which is set globally for the library or from the current context.
**kwargs
Any key/value pairs passed will be sent as query parameters to the host.

Returns

A Resource object containing the details of the object or None if no matches were found.

Raises

NetAppRestError: If the API call returned more than 1 matching resource.

def get_collection(*args, connection: HostConnection = None, max_records: int = None, **kwargs) -> Iterable[Resource]

Retrieves locks details.

  • vserver locks show

Learn more


Fetch a list of all objects of this type from the host.

This is a lazy fetch, making API calls only as necessary when the result of this call is iterated over. For instance, if max_records is set to 5, then iterating over the collection causes an API call to be sent to the server once for every 5 records. If the client stops iterating before getting to the 6th record, then no additional API calls are made.

Args

*args
Each entry represents a parent key which is used to build the path to the child object. If the URL definition were /api/foos/{foo.name}/bars, then to get the collection of bars for a particular foo, the foo.name value should be passed.
connection
The HostConnection object to use for this API call. If unset, tries to use the connection which is set globally for the library or from the current context.
max_records
The maximum number of records to return per call
**kwargs
Any key/value pairs passed will be sent as query parameters to the host.

Returns

A list of Resource objects

Raises

NetAppRestError: If there is no connection available to use either passed in or on the library. This would be not be raised when get_collection() is called, but rather when the result is iterated.

Methods

def delete(self, body: Union[Resource, dict] = None, poll: bool = True, poll_interval: Union[int, NoneType] = None, poll_timeout: Union[int, NoneType] = None, **kwargs) -> NetAppResponse

Deletes locks of given parameter.

  • vserver locks break

Learn more


Send a deletion request to the host for this object.

Args

body
The body of the delete request. This could be a Resource instance or a dictionary object.
poll
If set to True, the call will not return until the asynchronous job on the host has completed. Has no effect if the host did not return a job response.
poll_interval
If the operation returns a job, this specifies how often to query the job for updates.
poll_timeout
If the operation returns a job, this specifies how long to continue monitoring the job's status for completion.
**kwargs
Any key/value pairs passed will be sent as query parameters to the host.

Returns

A NetAppResponse object containing the details of the HTTP response.

Raises

NetAppRestError: If the API call returned a status code >= 400

def get(self, **kwargs) -> NetAppResponse

Retrieves the lock for a specific UUID.

  • vserver locks show

Learn more


Fetch the details of the object from the host.

Requires the keys to be set (if any). After returning, new or changed properties from the host will be set on the instance.

Returns

A NetAppResponse object containing the details of the HTTP response.

Raises

NetAppRestError: If the API call returned a status code >= 400

Inherited members

class ClientLockSchema (*, only: Union[Sequence[str], Set[str]] = None, exclude: Union[Sequence[str], Set[str]] = (), many: bool = False, context: Dict = None, load_only: Union[Sequence[str], Set[str]] = (), dump_only: Union[Sequence[str], Set[str]] = (), partial: Union[bool, Sequence[str], Set[str]] = False, unknown: str = None)

The fields of the ClientLock object

Ancestors

  • netapp_ontap.resource.ResourceSchema
  • marshmallow.schema.Schema
  • marshmallow.base.SchemaABC

Class variables

byte_lock GET POST PATCH

The byte_lock field of the client_lock.

client_address GET POST PATCH

IP address of the client holding the lock.

Example: 0.0.0.0

constituent GET

Indicate if volume is contituent or not.

delegation GET

Type of delegation.

Valid choices:

  • read
  • write
interface GET POST PATCH

The interface field of the client_lock.

node GET POST PATCH

The node field of the client_lock.

oplock_level GET

The oplock level determines which operations the client may cache locally.

Valid choices:

  • exclusive
  • level2
  • batch
  • null
  • read_batch
owner_id GET

Owner ID.

path GET POST PATCH

Object path

protocol GET POST PATCH

Type of lock protocol.

Valid choices:

  • cifs
  • fcache
  • nfsv4
  • http
  • nlm
  • nfsv4.1
  • crposix
share_lock GET POST PATCH

The share_lock field of the client_lock.

smb GET POST PATCH

The smb field of the client_lock.

state GET

State of lock.

Valid choices:

  • granted
  • revoking
  • adjusted
  • denied
  • subsumed
  • gone
  • unused
  • waiting
  • timeout
svm GET POST PATCH

The svm field of the client_lock.

type GET

Type of lock.

Valid choices:

  • byte_range
  • share_level
  • op_lock
  • delegation
uuid GET POST PATCH

Lock UUID

Example: ceeac1b4-8646-4c76-a054-1c96e87594aa

volume GET POST PATCH

The volume field of the client_lock.