minio/cmd/lock-rest-server-common.go
Harshavardhana e9b2bf00ad Support MinIO to be deployed on more than 32 nodes (#8492)
This PR implements locking from a global entity into
a more localized set level entity, allowing for locks
to be held only on the resources which are writing
to a collection of disks rather than a global level.

In this process this PR also removes the top-level
limit of 32 nodes to an unlimited number of nodes. This
is a precursor change before bring in bucket expansion.
2019-11-13 12:17:45 -08:00

45 lines
1.3 KiB
Go

/*
* MinIO Cloud Storage, (C) 2019 MinIO, Inc.
*
* Licensed under the Apache License, Version 2.0 (the "License");
* you may not use this file except in compliance with the License.
* You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*/
package cmd
import (
"errors"
)
const (
lockRESTVersion = "v2"
lockRESTVersionPrefix = SlashSeparator + "v2"
lockRESTPrefix = minioReservedBucketPath + "/lock"
)
const (
lockRESTMethodLock = "/lock"
lockRESTMethodRLock = "/rlock"
lockRESTMethodUnlock = "/unlock"
lockRESTMethodRUnlock = "/runlock"
// Unique ID of lock/unlock request.
lockRESTUID = "uid"
// Source contains the line number, function and file name of the code
// on the client node that requested the lock.
lockRESTSource = "source"
// Resource contains a entity to be locked/unlocked.
lockRESTResource = "resource"
)
var errLockConflict = errors.New("lock conflict")