package main
import (
- "bufio"
"context"
- "flag"
+ "encoding/json"
+ "errors"
"fmt"
"io"
"io/ioutil"
+ "log"
"os"
"os/exec"
"path/filepath"
"syscall"
"time"
+ "git.curoverse.com/arvados.git/sdk/go/arvados"
"github.com/prometheus/client_golang/prometheus"
+ "github.com/sirupsen/logrus"
)
-type unixVolumeAdder struct {
- *Config
-}
-
-// String implements flag.Value
-func (vs *unixVolumeAdder) String() string {
- return "-"
+func init() {
+ driver["Directory"] = newDirectoryVolume
}
-func (vs *unixVolumeAdder) Set(path string) error {
- if dirs := strings.Split(path, ","); len(dirs) > 1 {
- log.Print("DEPRECATED: using comma-separated volume list.")
- for _, dir := range dirs {
- if err := vs.Set(dir); err != nil {
- return err
- }
- }
- return nil
+func newDirectoryVolume(cluster *arvados.Cluster, volume arvados.Volume, logger logrus.FieldLogger, metrics *volumeMetricsVecs) (Volume, error) {
+ v := &UnixVolume{cluster: cluster, volume: volume, logger: logger, metrics: metrics}
+ err := json.Unmarshal(volume.DriverParameters, &v)
+ if err != nil {
+ return nil, err
}
- vs.Config.Volumes = append(vs.Config.Volumes, &UnixVolume{
- Root: path,
- ReadOnly: deprecated.flagReadonly,
- Serialize: deprecated.flagSerializeIO,
- })
- return nil
-}
-
-func init() {
- VolumeTypes = append(VolumeTypes, func() VolumeWithExamples { return &UnixVolume{} })
-
- flag.Var(&unixVolumeAdder{theConfig}, "volumes", "see Volumes configuration")
- flag.Var(&unixVolumeAdder{theConfig}, "volume", "see Volumes configuration")
+ return v, v.check()
}
-// Discover adds a UnixVolume for every directory named "keep" that is
-// located at the top level of a device- or tmpfs-backed mount point
-// other than "/". It returns the number of volumes added.
-func (vs *unixVolumeAdder) Discover() int {
- added := 0
- f, err := os.Open(ProcMounts)
- if err != nil {
- log.Fatalf("opening %s: %s", ProcMounts, err)
+func (v *UnixVolume) check() error {
+ if v.Root == "" {
+ return errors.New("DriverParameters.Root was not provided")
}
- scanner := bufio.NewScanner(f)
- for scanner.Scan() {
- args := strings.Fields(scanner.Text())
- if err := scanner.Err(); err != nil {
- log.Fatalf("reading %s: %s", ProcMounts, err)
- }
- dev, mount := args[0], args[1]
- if mount == "/" {
- continue
- }
- if dev != "tmpfs" && !strings.HasPrefix(dev, "/dev/") {
- continue
- }
- keepdir := mount + "/keep"
- if st, err := os.Stat(keepdir); err != nil || !st.IsDir() {
- continue
- }
- // Set the -readonly flag (but only for this volume)
- // if the filesystem is mounted readonly.
- flagReadonlyWas := deprecated.flagReadonly
- for _, fsopt := range strings.Split(args[3], ",") {
- if fsopt == "ro" {
- deprecated.flagReadonly = true
- break
- }
- if fsopt == "rw" {
- break
- }
- }
- if err := vs.Set(keepdir); err != nil {
- log.Printf("adding %q: %s", keepdir, err)
- } else {
- added++
- }
- deprecated.flagReadonly = flagReadonlyWas
+ if v.Serialize {
+ v.locker = &sync.Mutex{}
+ }
+ if !strings.HasPrefix(v.Root, "/") {
+ return fmt.Errorf("DriverParameters.Root %q does not start with '/'", v.Root)
}
- return added
+
+ // Set up prometheus metrics
+ lbls := prometheus.Labels{"device_id": v.GetDeviceID()}
+ v.os.stats.opsCounters, v.os.stats.errCounters, v.os.stats.ioBytes = v.metrics.getCounterVecsFor(lbls)
+
+ _, err := v.os.Stat(v.Root)
+ return err
}
// A UnixVolume stores and retrieves blocks in a local directory.
type UnixVolume struct {
- Root string // path to the volume's root directory
- ReadOnly bool
- Serialize bool
- DirectoryReplication int
- StorageClasses []string
+ Root string // path to the volume's root directory
+ Serialize bool
+
+ cluster *arvados.Cluster
+ volume arvados.Volume
+ logger logrus.FieldLogger
+ metrics *volumeMetricsVecs
// something to lock during IO, typically a sync.Mutex (or nil
// to skip locking)
os osWithStats
}
-// DeviceID returns a globally unique ID for the volume's root
+// GetDeviceID returns a globally unique ID for the volume's root
// directory, consisting of the filesystem's UUID and the path from
// filesystem root to storage directory, joined by "/". For example,
-// the DeviceID for a local directory "/mnt/xvda1/keep" might be
+// the device ID for a local directory "/mnt/xvda1/keep" might be
// "fa0b6166-3b55-4994-bd3f-92f4e00a1bb0/keep".
-func (v *UnixVolume) DeviceID() string {
+func (v *UnixVolume) GetDeviceID() string {
giveup := func(f string, args ...interface{}) string {
log.Printf(f+"; using blank DeviceID for volume %s", append(args, v)...)
return ""
return giveup("could not find entry in %q matching %q", udir, dev)
}
-// Examples implements VolumeWithExamples.
-func (*UnixVolume) Examples() []Volume {
- return []Volume{
- &UnixVolume{
- Root: "/mnt/local-disk",
- Serialize: true,
- DirectoryReplication: 1,
- },
- &UnixVolume{
- Root: "/mnt/network-disk",
- Serialize: false,
- DirectoryReplication: 2,
- },
- }
-}
-
-// Type implements Volume
-func (v *UnixVolume) Type() string {
- return "Directory"
-}
-
-// Start implements Volume
-func (v *UnixVolume) Start(vm *volumeMetricsVecs) error {
- if v.Serialize {
- v.locker = &sync.Mutex{}
- }
- if !strings.HasPrefix(v.Root, "/") {
- return fmt.Errorf("volume root does not start with '/': %q", v.Root)
- }
- if v.DirectoryReplication == 0 {
- v.DirectoryReplication = 1
- }
- // Set up prometheus metrics
- lbls := prometheus.Labels{"device_id": v.DeviceID()}
- v.os.stats.opsCounters, v.os.stats.errCounters, v.os.stats.ioBytes = vm.getCounterVecsFor(lbls)
-
- _, err := v.os.Stat(v.Root)
-
- return err
-}
-
// Touch sets the timestamp for the given locator to the current time
func (v *UnixVolume) Touch(loc string) error {
- if v.ReadOnly {
+ if v.volume.ReadOnly {
return MethodDisabledError
}
p := v.blockPath(loc)
// WriteBlock implements BlockWriter.
func (v *UnixVolume) WriteBlock(ctx context.Context, loc string, rdr io.Reader) error {
- if v.ReadOnly {
+ if v.volume.ReadOnly {
return MethodDisabledError
}
if v.IsFull() {
// Trash() will read the correct up-to-date timestamp and choose not to
// trash the file.
- if v.ReadOnly {
+ if v.volume.ReadOnly || !v.cluster.Collections.BlobTrash {
return MethodDisabledError
}
if err := v.lock(context.TODO()); err != nil {
// anyway (because the permission signatures have expired).
if fi, err := v.os.Stat(p); err != nil {
return err
- } else if time.Since(fi.ModTime()) < time.Duration(theConfig.BlobSignatureTTL) {
+ } else if time.Since(fi.ModTime()) < v.cluster.Collections.BlobSigningTTL.Duration() {
return nil
}
- if theConfig.TrashLifetime == 0 {
+ if v.cluster.Collections.BlobTrashLifetime == 0 {
return v.os.Remove(p)
}
- return v.os.Rename(p, fmt.Sprintf("%v.trash.%d", p, time.Now().Add(theConfig.TrashLifetime.Duration()).Unix()))
+ return v.os.Rename(p, fmt.Sprintf("%v.trash.%d", p, time.Now().Add(v.cluster.Collections.BlobTrashLifetime.Duration()).Unix()))
}
// Untrash moves block from trash back into store
// Look for path/{loc}.trash.{deadline} in storage,
// and rename the first such file as path/{loc}
func (v *UnixVolume) Untrash(loc string) (err error) {
- if v.ReadOnly {
+ if v.volume.ReadOnly {
return MethodDisabledError
}
return fmt.Sprintf("[UnixVolume %s]", v.Root)
}
-// Writable returns false if all future Put, Mtime, and Delete calls
-// are expected to fail.
-func (v *UnixVolume) Writable() bool {
- return !v.ReadOnly
-}
-
-// Replication returns the number of replicas promised by the
-// underlying device (as specified in configuration).
-func (v *UnixVolume) Replication() int {
- return v.DirectoryReplication
-}
-
-// GetStorageClasses implements Volume
-func (v *UnixVolume) GetStorageClasses() []string {
- return v.StorageClasses
-}
-
// InternalStats returns I/O and filesystem ops counters.
func (v *UnixVolume) InternalStats() interface{} {
return &v.os.stats
// EmptyTrash walks hierarchy looking for {hash}.trash.*
// and deletes those with deadline < now.
func (v *UnixVolume) EmptyTrash() {
+ if v.cluster.Collections.BlobDeleteConcurrency < 1 {
+ return
+ }
+
var bytesDeleted, bytesInTrash int64
var blocksDeleted, blocksInTrash int64
info os.FileInfo
}
var wg sync.WaitGroup
- todo := make(chan dirent, theConfig.EmptyTrashWorkers)
- for i := 0; i < 1 || i < theConfig.EmptyTrashWorkers; i++ {
+ todo := make(chan dirent, v.cluster.Collections.BlobDeleteConcurrency)
+ for i := 0; i < v.cluster.Collections.BlobDeleteConcurrency; i++ {
wg.Add(1)
go func() {
defer wg.Done()
projects / arvados.git / blobdiff