mirror of https://github.com/minio/minio.git
94 lines
3.8 KiB
Go
94 lines
3.8 KiB
Go
/*
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* Minio Cloud Storage, (C) 2016 Minio, Inc.
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*
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* Licensed under the Apache License, Version 2.0 (the "License");
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* you may not use this file except in compliance with the License.
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* You may obtain a copy of the License at
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*
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* http://www.apache.org/licenses/LICENSE-2.0
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*
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* Unless required by applicable law or agreed to in writing, software
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* distributed under the License is distributed on an "AS IS" BASIS,
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* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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* See the License for the specific language governing permissions and
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* limitations under the License.
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*/
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package cmd
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import "time"
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// SystemLockState - Structure to fill the lock state of entire object storage.
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// That is the total locks held, total calls blocked on locks and state of all the locks for the entire system.
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type SystemLockState struct {
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TotalLocks int64 `json:"totalLocks"`
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// Count of operations which are blocked waiting for the lock to
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// be released.
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TotalBlockedLocks int64 `json:"totalBlockedLocks"`
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// Count of operations which has successfully acquired the lock but
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// hasn't unlocked yet( operation in progress).
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TotalAcquiredLocks int64 `json:"totalAcquiredLocks"`
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LocksInfoPerObject []VolumeLockInfo `json:"locksInfoPerObject"`
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}
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// VolumeLockInfo - Structure to contain the lock state info for volume, path pair.
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type VolumeLockInfo struct {
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Bucket string `json:"bucket"`
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Object string `json:"object"`
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// All locks blocked + running for given <volume,path> pair.
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LocksOnObject int64 `json:"locksOnObject"`
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// Count of operations which has successfully acquired the lock
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// but hasn't unlocked yet( operation in progress).
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LocksAcquiredOnObject int64 `json:"locksAcquiredOnObject"`
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// Count of operations which are blocked waiting for the lock
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// to be released.
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TotalBlockedLocks int64 `json:"locksBlockedOnObject"`
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// State information containing state of the locks for all operations
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// on given <volume,path> pair.
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LockDetailsOnObject []OpsLockState `json:"lockDetailsOnObject"`
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}
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// OpsLockState - structure to fill in state information of the lock.
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// structure to fill in status information for each operation with given operation ID.
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type OpsLockState struct {
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OperationID string `json:"opsID"` // String containing operation ID.
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LockOrigin string `json:"lockOrigin"` // Operation type (GetObject, PutObject...)
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LockType lockType `json:"lockType"` // Lock type (RLock, WLock)
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Status statusType `json:"status"` // Status can be Running/Ready/Blocked.
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Since time.Time `json:"statusSince"` // Time when the lock was initially held.
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Duration time.Duration `json:"statusDuration"` // Duration since the lock was held.
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}
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// Read entire state of the locks in the system and return.
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func getSystemLockState() (SystemLockState, error) {
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nsMutex.lockMapMutex.Lock()
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defer nsMutex.lockMapMutex.Unlock()
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lockState := SystemLockState{}
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lockState.TotalBlockedLocks = nsMutex.blockedCounter
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lockState.TotalLocks = nsMutex.globalLockCounter
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lockState.TotalAcquiredLocks = nsMutex.runningLockCounter
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for param, debugLock := range nsMutex.debugLockMap {
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volLockInfo := VolumeLockInfo{}
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volLockInfo.Bucket = param.volume
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volLockInfo.Object = param.path
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volLockInfo.LocksOnObject = debugLock.ref
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volLockInfo.TotalBlockedLocks = debugLock.blocked
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volLockInfo.LocksAcquiredOnObject = debugLock.running
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for opsID, lockInfo := range debugLock.lockInfo {
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volLockInfo.LockDetailsOnObject = append(volLockInfo.LockDetailsOnObject, OpsLockState{
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OperationID: opsID,
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LockOrigin: lockInfo.lockOrigin,
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LockType: lockInfo.lType,
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Status: lockInfo.status,
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Since: lockInfo.since,
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Duration: time.Now().UTC().Sub(lockInfo.since),
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})
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}
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lockState.LocksInfoPerObject = append(lockState.LocksInfoPerObject, volLockInfo)
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}
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return lockState, nil
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}
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