mirror of https://github.com/minio/minio.git
94 lines
3.8 KiB
Go
94 lines
3.8 KiB
Go
/*
|
|
* Minio Cloud Storage, (C) 2016 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 "time"
|
|
|
|
// SystemLockState - Structure to fill the lock state of entire object storage.
|
|
// That is the total locks held, total calls blocked on locks and state of all the locks for the entire system.
|
|
type SystemLockState struct {
|
|
TotalLocks int64 `json:"totalLocks"`
|
|
// Count of operations which are blocked waiting for the lock to
|
|
// be released.
|
|
TotalBlockedLocks int64 `json:"totalBlockedLocks"`
|
|
// Count of operations which has successfully acquired the lock but
|
|
// hasn't unlocked yet( operation in progress).
|
|
TotalAcquiredLocks int64 `json:"totalAcquiredLocks"`
|
|
LocksInfoPerObject []VolumeLockInfo `json:"locksInfoPerObject"`
|
|
}
|
|
|
|
// VolumeLockInfo - Structure to contain the lock state info for volume, path pair.
|
|
type VolumeLockInfo struct {
|
|
Bucket string `json:"bucket"`
|
|
Object string `json:"object"`
|
|
// All locks blocked + running for given <volume,path> pair.
|
|
LocksOnObject int64 `json:"locksOnObject"`
|
|
// Count of operations which has successfully acquired the lock
|
|
// but hasn't unlocked yet( operation in progress).
|
|
LocksAcquiredOnObject int64 `json:"locksAcquiredOnObject"`
|
|
// Count of operations which are blocked waiting for the lock
|
|
// to be released.
|
|
TotalBlockedLocks int64 `json:"locksBlockedOnObject"`
|
|
// State information containing state of the locks for all operations
|
|
// on given <volume,path> pair.
|
|
LockDetailsOnObject []OpsLockState `json:"lockDetailsOnObject"`
|
|
}
|
|
|
|
// OpsLockState - structure to fill in state information of the lock.
|
|
// structure to fill in status information for each operation with given operation ID.
|
|
type OpsLockState struct {
|
|
OperationID string `json:"opsID"` // String containing operation ID.
|
|
LockSource string `json:"lockSource"` // Operation type (GetObject, PutObject...)
|
|
LockType lockType `json:"lockType"` // Lock type (RLock, WLock)
|
|
Status statusType `json:"status"` // Status can be Running/Ready/Blocked.
|
|
Since time.Time `json:"statusSince"` // Time when the lock was initially held.
|
|
Duration time.Duration `json:"statusDuration"` // Duration since the lock was held.
|
|
}
|
|
|
|
// Read entire state of the locks in the system and return.
|
|
func getSystemLockState() (SystemLockState, error) {
|
|
nsMutex.lockMapMutex.Lock()
|
|
defer nsMutex.lockMapMutex.Unlock()
|
|
|
|
lockState := SystemLockState{}
|
|
|
|
lockState.TotalBlockedLocks = nsMutex.blockedCounter
|
|
lockState.TotalLocks = nsMutex.globalLockCounter
|
|
lockState.TotalAcquiredLocks = nsMutex.runningLockCounter
|
|
|
|
for param, debugLock := range nsMutex.debugLockMap {
|
|
volLockInfo := VolumeLockInfo{}
|
|
volLockInfo.Bucket = param.volume
|
|
volLockInfo.Object = param.path
|
|
volLockInfo.LocksOnObject = debugLock.ref
|
|
volLockInfo.TotalBlockedLocks = debugLock.blocked
|
|
volLockInfo.LocksAcquiredOnObject = debugLock.running
|
|
for opsID, lockInfo := range debugLock.lockInfo {
|
|
volLockInfo.LockDetailsOnObject = append(volLockInfo.LockDetailsOnObject, OpsLockState{
|
|
OperationID: opsID,
|
|
LockSource: lockInfo.lockSource,
|
|
LockType: lockInfo.lType,
|
|
Status: lockInfo.status,
|
|
Since: lockInfo.since,
|
|
Duration: time.Now().UTC().Sub(lockInfo.since),
|
|
})
|
|
}
|
|
lockState.LocksInfoPerObject = append(lockState.LocksInfoPerObject, volLockInfo)
|
|
}
|
|
return lockState, nil
|
|
}
|