You can not select more than 25 topics
Topics must start with a letter or number, can include dashes ('-') and can be up to 35 characters long.
139 lines
5.5 KiB
139 lines
5.5 KiB
/*
|
|
* 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 (
|
|
"encoding/json"
|
|
"fmt"
|
|
"net/url"
|
|
"path"
|
|
"time"
|
|
|
|
"github.com/minio/cli"
|
|
)
|
|
|
|
// 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"`
|
|
TotalBlockedLocks int64 `json:"totalBlockedLocks"` // count of operations which are blocked waiting for the lock to be released.
|
|
TotalAcquiredLocks int64 `json:"totalAcquiredLocks"` // count of operations which has successfully acquired the lock but hasn't unlocked yet( operation in progress).
|
|
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"`
|
|
LocksOnObject int64 `json:"locksOnObject"` // All locks blocked + running for given <volume,path> pair.
|
|
LocksAcquiredOnObject int64 `json:"locksAcquiredOnObject"` // count of operations which has successfully acquired the lock but hasn't unlocked yet( operation in progress).
|
|
TotalBlockedLocks int64 `json:"locksBlockedOnObject"` // count of operations which are blocked waiting for the lock to be released.
|
|
LockDetailsOnObject []OpsLockState `json:"lockDetailsOnObject"` // state information containing state of the locks for all operations on given <volume,path> pair.
|
|
}
|
|
|
|
// 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.
|
|
LockOrigin string `json:"lockOrigin"` // contant which mentions the operation type (Get Obejct, PutObject...)
|
|
LockType string `json:"lockType"`
|
|
Status string `json:"status"` // status can be running/ready/blocked.
|
|
StatusSince string `json:"statusSince"` // time info of the since how long the status holds true, value in seconds.
|
|
}
|
|
|
|
// Read entire state of the locks in the system and return.
|
|
func generateSystemLockResponse() (SystemLockState, error) {
|
|
nsMutex.lockMapMutex.Lock()
|
|
defer nsMutex.lockMapMutex.Unlock()
|
|
|
|
if nsMutex.debugLockMap == nil {
|
|
return SystemLockState{}, LockInfoNil{}
|
|
}
|
|
|
|
lockState := SystemLockState{}
|
|
|
|
lockState.TotalBlockedLocks = nsMutex.blockedCounter
|
|
lockState.TotalLocks = nsMutex.globalLockCounter
|
|
lockState.TotalAcquiredLocks = nsMutex.runningLockCounter
|
|
|
|
for param := range nsMutex.debugLockMap {
|
|
volLockInfo := VolumeLockInfo{}
|
|
volLockInfo.Bucket = param.volume
|
|
volLockInfo.Object = param.path
|
|
volLockInfo.TotalBlockedLocks = nsMutex.debugLockMap[param].blocked
|
|
volLockInfo.LocksAcquiredOnObject = nsMutex.debugLockMap[param].running
|
|
volLockInfo.LocksOnObject = nsMutex.debugLockMap[param].ref
|
|
for opsID := range nsMutex.debugLockMap[param].lockInfo {
|
|
opsState := OpsLockState{}
|
|
opsState.OperationID = opsID
|
|
opsState.LockOrigin = nsMutex.debugLockMap[param].lockInfo[opsID].lockOrigin
|
|
opsState.LockType = nsMutex.debugLockMap[param].lockInfo[opsID].lockType
|
|
opsState.Status = nsMutex.debugLockMap[param].lockInfo[opsID].status
|
|
opsState.StatusSince = time.Now().Sub(nsMutex.debugLockMap[param].lockInfo[opsID].since).String()
|
|
|
|
volLockInfo.LockDetailsOnObject = append(volLockInfo.LockDetailsOnObject, opsState)
|
|
}
|
|
lockState.LocksInfoPerObject = append(lockState.LocksInfoPerObject, volLockInfo)
|
|
}
|
|
|
|
return lockState, nil
|
|
}
|
|
|
|
var lockCmd = cli.Command{
|
|
Name: "lock",
|
|
Usage: "info about the locks in the node.",
|
|
Action: lockControl,
|
|
CustomHelpTemplate: `NAME:
|
|
minio control {{.Name}} - {{.Usage}}
|
|
|
|
USAGE:
|
|
minio control {{.Name}} http://localhost:9000/
|
|
|
|
EAMPLES:
|
|
1. Get all the info about the blocked/held locks in the node:
|
|
$ minio control lock http://localhost:9000/
|
|
`,
|
|
}
|
|
|
|
// "minio control lock" entry point.
|
|
func lockControl(c *cli.Context) {
|
|
if len(c.Args()) != 1 {
|
|
cli.ShowCommandHelpAndExit(c, "lock", 1)
|
|
}
|
|
|
|
parsedURL, err := url.Parse(c.Args()[0])
|
|
fatalIf(err, "Unable to parse URL.")
|
|
|
|
authCfg := &authConfig{
|
|
accessKey: serverConfig.GetCredential().AccessKeyID,
|
|
secretKey: serverConfig.GetCredential().SecretAccessKey,
|
|
address: parsedURL.Host,
|
|
path: path.Join(reservedBucket, controlPath),
|
|
loginMethod: "Controller.LoginHandler",
|
|
}
|
|
client := newAuthClient(authCfg)
|
|
|
|
args := &GenericArgs{}
|
|
reply := &SystemLockState{}
|
|
err = client.Call("Control.LockInfo", args, reply)
|
|
// logs the error and returns if err != nil.
|
|
fatalIf(err, "RPC Control.LockInfo call failed")
|
|
// print the lock info on the console.
|
|
b, err := json.MarshalIndent(*reply, "", " ")
|
|
fatalIf(err, "Failed to parse the RPC lock info response")
|
|
fmt.Print(string(b))
|
|
}
|
|
|