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config.go
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config.go
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// Copyright (c) 2015-2021, NVIDIA CORPORATION.
// SPDX-License-Identifier: Apache-2.0
package fs
import (
"container/list"
"fmt"
"sync"
"time"
"github.com/swiftstack/ProxyFS/bucketstats"
"github.com/swiftstack/ProxyFS/conf"
"github.com/swiftstack/ProxyFS/headhunter"
"github.com/swiftstack/ProxyFS/inode"
"github.com/swiftstack/ProxyFS/logger"
"github.com/swiftstack/ProxyFS/trackedlock"
"github.com/swiftstack/ProxyFS/transitions"
)
type inFlightFileInodeDataStruct struct {
inode.InodeNumber // Indicates the InodeNumber of a fileInode with unflushed
volStruct *volumeStruct // Synchronized via volStruct's sync.Mutex
control chan bool // Signal with true to flush (and exit), false to simply exit
wg sync.WaitGroup // Client can know when done
globalsListElement *list.Element // Back-pointer to wrapper used to insert into globals.inFlightFileInodeDataList
}
// inFlightFileInodeDataControlBuffering specifies the inFlightFileInodeDataStruct.control channel buffer size
// Note: There are potentially multiple initiators of this signal
const inFlightFileInodeDataControlBuffering = 100
type volumeStruct struct {
dataMutex trackedlock.Mutex
volumeName string
doCheckpointPerFlush bool
maxFlushTime time.Duration
fileDefragmentChunkSize uint64
fileDefragmentChunkDelay time.Duration
reportedBlockSize uint64
reportedFragmentSize uint64
reportedNumBlocks uint64 // Used for Total, Free, and Avail
reportedNumInodes uint64 // Used for Total, Free, and Avail
FLockMap map[inode.InodeNumber]*list.List
inFlightFileInodeDataMap map[inode.InodeNumber]*inFlightFileInodeDataStruct
jobRWMutex trackedlock.RWMutex
inodeVolumeHandle inode.VolumeHandle
headhunterVolumeHandle headhunter.VolumeHandle
}
type tryLockBackoffContextStruct struct {
sync.WaitGroup
backoffsCompleted uint64 // Note that tryLockBackoffContextStruct{} sets this to zero
}
type globalsStruct struct {
trackedlock.Mutex
tryLockBackoffMin time.Duration
tryLockBackoffMax time.Duration
tryLockSerializationThreshhold uint64
symlinkMax uint16
coalesceElementChunkSize uint16
volumeMap map[string]*volumeStruct // key == volumeStruct.volumeName
inFlightFileInodeDataList *list.List
serializedBackoffList *list.List
AccessUsec bucketstats.BucketLog2Round
CreateUsec bucketstats.BucketLog2Round
DestroyUsec bucketstats.BucketLog2Round
FlushUsec bucketstats.BucketLog2Round
FlockGetUsec bucketstats.BucketLog2Round
FlockLockUsec bucketstats.BucketLog2Round
FlockUnlockUsec bucketstats.BucketLog2Round
GetstatUsec bucketstats.BucketLog2Round
GetTypeUsec bucketstats.BucketLog2Round
GetXAttrUsec bucketstats.BucketLog2Round
IsDirUsec bucketstats.BucketLog2Round
IsFileUsec bucketstats.BucketLog2Round
IsSymlinkUsec bucketstats.BucketLog2Round
LinkUsec bucketstats.BucketLog2Round
ListXAttrUsec bucketstats.BucketLog2Round
LookupUsec bucketstats.BucketLog2Round
LookupPathUsec bucketstats.BucketLog2Round
MkdirUsec bucketstats.BucketLog2Round
MoveUsec bucketstats.BucketLog2Round
RemoveXAttrUsec bucketstats.BucketLog2Round
RenameUsec bucketstats.BucketLog2Round
ReadUsec bucketstats.BucketLog2Round
ReadBytes bucketstats.BucketLog2Round
ReaddirUsec bucketstats.BucketLog2Round
ReaddirEntries bucketstats.BucketLog2Round
ReaddirOneUsec bucketstats.BucketLog2Round
ReaddirOnePlusUsec bucketstats.BucketLog2Round
ReaddirPlusUsec bucketstats.BucketLog2Round
ReaddirPlusBytes bucketstats.BucketLog2Round
ReadsymlinkUsec bucketstats.BucketLog2Round
ResizeUsec bucketstats.BucketLog2Round
RmdirUsec bucketstats.BucketLog2Round
SetstatUsec bucketstats.BucketLog2Round
SetXAttrUsec bucketstats.BucketLog2Round
StatVfsUsec bucketstats.BucketLog2Round
SymlinkUsec bucketstats.BucketLog2Round
UnlinkUsec bucketstats.BucketLog2Round
VolumeNameUsec bucketstats.BucketLog2Round
WriteUsec bucketstats.BucketLog2Round
WriteBytes bucketstats.BucketLog2Round
CreateErrors bucketstats.Total
DefragmentFileErrors bucketstats.Total
DestroyErrors bucketstats.Total
FetchExtentMapChunkErrors bucketstats.Total
FlushErrors bucketstats.Total
FlockOtherErrors bucketstats.Total
FlockGetErrors bucketstats.Total
FlockLockErrors bucketstats.Total
FlockUnlockErrors bucketstats.Total
GetstatErrors bucketstats.Total
GetTypeErrors bucketstats.Total
GetXAttrErrors bucketstats.Total
IsDirErrors bucketstats.Total
IsFileErrors bucketstats.Total
IsSymlinkErrors bucketstats.Total
LinkErrors bucketstats.Total
ListXAttrErrors bucketstats.Total
LookupErrors bucketstats.Total
LookupPathErrors bucketstats.Total
MkdirErrors bucketstats.Total
MoveErrors bucketstats.Total
RemoveXAttrErrors bucketstats.Total
RenameErrors bucketstats.Total
ReadErrors bucketstats.Total
ReaddirErrors bucketstats.Total
ReaddirOneErrors bucketstats.Total
ReaddirOnePlusErrors bucketstats.Total
ReaddirPlusErrors bucketstats.Total
ReadsymlinkErrors bucketstats.Total
ResizeErrors bucketstats.Total
RmdirErrors bucketstats.Total
SetstatErrors bucketstats.Total
SetXAttrErrors bucketstats.Total
StatVfsErrors bucketstats.Total
SymlinkErrors bucketstats.Total
UnlinkErrors bucketstats.Total
WriteErrors bucketstats.Total
DefragmentFileUsec bucketstats.BucketLog2Round
FetchExtentMapChunkUsec bucketstats.BucketLog2Round
CallInodeToProvisionObjectUsec bucketstats.BucketLog2Round
MiddlewareCoalesceUsec bucketstats.BucketLog2Round
MiddlewareCoalesceBytes bucketstats.BucketLog2Round
MiddlewareDeleteUsec bucketstats.BucketLog2Round
MiddlewareGetAccountUsec bucketstats.BucketLog2Round
MiddlewareGetContainerUsec bucketstats.BucketLog2Round
MiddlewareGetObjectUsec bucketstats.BucketLog2Round
MiddlewareGetObjectBytes bucketstats.BucketLog2Round
MiddlewareHeadResponseUsec bucketstats.BucketLog2Round
MiddlewareMkdirUsec bucketstats.BucketLog2Round
MiddlewarePostUsec bucketstats.BucketLog2Round
MiddlewarePostBytes bucketstats.BucketLog2Round
MiddlewarePutCompleteUsec bucketstats.BucketLog2Round
MiddlewarePutCompleteBytes bucketstats.BucketLog2Round
MiddlewarePutContainerUsec bucketstats.BucketLog2Round
MiddlewarePutContainerBytes bucketstats.BucketLog2Round
CallInodeToProvisionObjectErrors bucketstats.Total
MiddlewareCoalesceErrors bucketstats.Total
MiddlewareDeleteErrors bucketstats.Total
MiddlewareGetAccountErrors bucketstats.Total
MiddlewareGetContainerErrors bucketstats.Total
MiddlewareGetObjectErrors bucketstats.Total
MiddlewareHeadResponseErrors bucketstats.Total
MiddlewareMkdirErrors bucketstats.Total
MiddlewarePostErrors bucketstats.Total
MiddlewarePutCompleteErrors bucketstats.Total
MiddlewarePutContainerErrors bucketstats.Total
FetchVolumeHandleUsec bucketstats.BucketLog2Round
FetchVolumeHandleErrors bucketstats.BucketLog2Round
ValidateVolumeUsec bucketstats.BucketLog2Round
ScrubVolumeUsec bucketstats.BucketLog2Round
ValidateBaseNameUsec bucketstats.BucketLog2Round
ValidateBaseNameErrors bucketstats.Total
ValidateFullPathUsec bucketstats.BucketLog2Round
ValidateFullPathErrors bucketstats.Total
AccountNameToVolumeNameUsec bucketstats.BucketLog2Round
VolumeNameToActivePeerPrivateIPAddrUsec bucketstats.BucketLog2Round
}
var globals globalsStruct
func init() {
transitions.Register("fs", &globals)
}
func (dummy *globalsStruct) Up(confMap conf.ConfMap) (err error) {
globals.tryLockBackoffMin, err = confMap.FetchOptionValueDuration("FSGlobals", "TryLockBackoffMin")
if nil != err {
globals.tryLockBackoffMin = time.Duration(10 * time.Millisecond) // TODO: Eventually, just return
}
globals.tryLockBackoffMax, err = confMap.FetchOptionValueDuration("FSGlobals", "TryLockBackoffMax")
if nil != err {
globals.tryLockBackoffMax = time.Duration(50 * time.Millisecond) // TODO: Eventually, just return
}
globals.tryLockSerializationThreshhold, err = confMap.FetchOptionValueUint64("FSGlobals", "TryLockSerializationThreshhold")
if nil != err {
globals.tryLockSerializationThreshhold = 5 // TODO: Eventually, just return
}
globals.symlinkMax, err = confMap.FetchOptionValueUint16("FSGlobals", "SymlinkMax")
if nil != err {
globals.symlinkMax = 32 // TODO: Eventually, just return
}
globals.coalesceElementChunkSize, err = confMap.FetchOptionValueUint16("FSGlobals", "CoalesceElementChunkSize")
if nil != err {
globals.coalesceElementChunkSize = 16 // TODO: Eventually, just return
}
globals.volumeMap = make(map[string]*volumeStruct)
globals.inFlightFileInodeDataList = list.New()
globals.serializedBackoffList = list.New()
bucketstats.Register("proxyfs.fs", "", &globals)
err = nil
return nil
}
func (dummy *globalsStruct) VolumeGroupCreated(confMap conf.ConfMap, volumeGroupName string, activePeer string, virtualIPAddr string) (err error) {
return nil
}
func (dummy *globalsStruct) VolumeGroupMoved(confMap conf.ConfMap, volumeGroupName string, activePeer string, virtualIPAddr string) (err error) {
return nil
}
func (dummy *globalsStruct) VolumeGroupDestroyed(confMap conf.ConfMap, volumeGroupName string) (err error) {
return nil
}
func (dummy *globalsStruct) VolumeCreated(confMap conf.ConfMap, volumeName string, volumeGroupName string) (err error) {
return nil
}
func (dummy *globalsStruct) VolumeMoved(confMap conf.ConfMap, volumeName string, volumeGroupName string) (err error) {
return nil
}
func (dummy *globalsStruct) VolumeDestroyed(confMap conf.ConfMap, volumeName string) (err error) {
return nil
}
func (dummy *globalsStruct) ServeVolume(confMap conf.ConfMap, volumeName string) (err error) {
var (
replayLogFileName string
volume *volumeStruct
volumeSectionName string
)
volume = &volumeStruct{
volumeName: volumeName,
FLockMap: make(map[inode.InodeNumber]*list.List),
inFlightFileInodeDataMap: make(map[inode.InodeNumber]*inFlightFileInodeDataStruct),
}
volumeSectionName = "Volume:" + volumeName
replayLogFileName, err = confMap.FetchOptionValueString(volumeSectionName, "ReplayLogFileName")
if nil == err {
volume.doCheckpointPerFlush = ("" == replayLogFileName)
} else {
volume.doCheckpointPerFlush = true
}
logger.Infof("Checkpoint per Flush for volume %v is %v", volume.volumeName, volume.doCheckpointPerFlush)
volume.maxFlushTime, err = confMap.FetchOptionValueDuration(volumeSectionName, "MaxFlushTime")
if nil != err {
return
}
volume.fileDefragmentChunkSize, err = confMap.FetchOptionValueUint64(volumeSectionName, "FileDefragmentChunkSize")
if nil != err {
volume.fileDefragmentChunkSize = 10485760 // TODO: Eventually, just return
}
volume.fileDefragmentChunkDelay, err = confMap.FetchOptionValueDuration(volumeSectionName, "FileDefragmentChunkDelay")
if nil != err {
volume.fileDefragmentChunkDelay = time.Duration(10 * time.Millisecond) // TODO: Eventually, just return
}
volume.reportedBlockSize, err = confMap.FetchOptionValueUint64(volumeSectionName, "ReportedBlockSize")
if nil != err {
volume.reportedBlockSize = DefaultReportedBlockSize // TODO: Eventually, just return
}
volume.reportedFragmentSize, err = confMap.FetchOptionValueUint64(volumeSectionName, "ReportedFragmentSize")
if nil != err {
volume.reportedFragmentSize = DefaultReportedFragmentSize // TODO: Eventually, just return
}
volume.reportedNumBlocks, err = confMap.FetchOptionValueUint64(volumeSectionName, "ReportedNumBlocks")
if nil != err {
volume.reportedNumBlocks = DefaultReportedNumBlocks // TODO: Eventually, just return
}
volume.reportedNumInodes, err = confMap.FetchOptionValueUint64(volumeSectionName, "ReportedNumInodes")
if nil != err {
volume.reportedNumInodes = DefaultReportedNumInodes // TODO: Eventually, just return
}
volume.inodeVolumeHandle, err = inode.FetchVolumeHandle(volumeName)
if nil != err {
return
}
volume.headhunterVolumeHandle, err = headhunter.FetchVolumeHandle(volumeName)
if nil != err {
return
}
globals.volumeMap[volumeName] = volume
err = nil
return
}
func (dummy *globalsStruct) UnserveVolume(confMap conf.ConfMap, volumeName string) (err error) {
var (
ok bool
volume *volumeStruct
)
volume, ok = globals.volumeMap[volumeName]
if !ok {
err = nil
return
}
volume.untrackInFlightFileInodeDataAll()
delete(globals.volumeMap, volumeName)
err = nil
return
}
func (dummy *globalsStruct) VolumeToBeUnserved(confMap conf.ConfMap, volumeName string) (err error) {
return nil
}
func (dummy *globalsStruct) SignaledStart(confMap conf.ConfMap) (err error) {
return nil
}
func (dummy *globalsStruct) SignaledFinish(confMap conf.ConfMap) (err error) {
return nil
}
func (dummy *globalsStruct) Down(confMap conf.ConfMap) (err error) {
var (
volume *volumeStruct
)
if 0 != len(globals.volumeMap) {
err = fmt.Errorf("fs.Down() called with 0 != len(globals.volumeMap")
return
}
if 0 != globals.inFlightFileInodeDataList.Len() {
err = fmt.Errorf("fs.Down() called with 0 != globals.inFlightFileInodeDataList.Len()")
return
}
for _, volume = range globals.volumeMap {
volume.untrackInFlightFileInodeDataAll()
}
if 0 < globals.inFlightFileInodeDataList.Len() {
logger.Fatalf("fs.Down() has completed all un-mount's... but found non-empty globals.inFlightFileInodeDataList")
}
bucketstats.UnRegister("proxyfs.fs", "")
err = nil
return
}