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lib/model: Don't info log repeat pull errors (#6149)

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Simon Frei 2019-11-19 09:56:53 +01:00 committed by GitHub
parent 28edf2f5bb
commit 0d14ee4142
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GPG Key ID: 4AEE18F83AFDEB23
10 changed files with 77 additions and 54 deletions
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6
lib/model/fakeconns_test.go
View File

@ -33,7 +33,7 @@ type fakeConnection struct {
folder string
model *model
indexFn func(string, []protocol.FileInfo)
requestFn func(folder, name string, offset int64, size int, hash []byte, fromTemporary bool) ([]byte, error)
requestFn func(ctx context.Context, folder, name string, offset int64, size int, hash []byte, fromTemporary bool) ([]byte, error)
closeFn func(error)
mut sync.Mutex
}
@ -82,11 +82,11 @@ func (f *fakeConnection) IndexUpdate(folder string, fs []protocol.FileInfo) erro
return nil
}
func (f *fakeConnection) Request(folder, name string, offset int64, size int, hash []byte, weakHash uint32, fromTemporary bool) ([]byte, error) {
func (f *fakeConnection) Request(ctx context.Context, folder, name string, offset int64, size int, hash []byte, weakHash uint32, fromTemporary bool) ([]byte, error) {
f.mut.Lock()
defer f.mut.Unlock()
if f.requestFn != nil {
return f.requestFn(folder, name, offset, size, hash, fromTemporary)
return f.requestFn(ctx, folder, name, offset, size, hash, fromTemporary)
}
return f.fileData[name], nil
}

6
lib/model/folder.go
View File

@ -15,6 +15,8 @@ import (
"sync/atomic"
"time"
"github.com/pkg/errors"
"github.com/syncthing/syncthing/lib/config"
"github.com/syncthing/syncthing/lib/db"
"github.com/syncthing/syncthing/lib/events"
@ -278,7 +280,7 @@ func (f *folder) getHealthError() error {
dbPath := locations.Get(locations.Database)
if usage, err := fs.NewFilesystem(fs.FilesystemTypeBasic, dbPath).Usage("."); err == nil {
if err = config.CheckFreeSpace(f.model.cfg.Options().MinHomeDiskFree, usage); err != nil {
return fmt.Errorf("insufficient space on disk for database (%v): %v", dbPath, err)
return errors.Wrapf(err, "insufficient space on disk for database (%v)", dbPath)
}
}
@ -297,7 +299,7 @@ func (f *folder) scanSubdirs(subDirs []string) error {
oldHash := f.ignores.Hash()
if err := f.ignores.Load(".stignore"); err != nil && !fs.IsNotExist(err) {
err = fmt.Errorf("loading ignores: %v", err)
err = errors.Wrap(err, "loading ignores")
f.setError(err)
return err
}

48
lib/model/folder_sendrecv.go
View File

@ -104,7 +104,8 @@ type sendReceiveFolder struct {
queue *jobQueue
pullErrors map[string]string // path -> error string
pullErrors map[string]string // errors for most recent/current iteration
oldPullErrors map[string]string // errors from previous iterations for log filtering only
pullErrorsMut sync.Mutex
}
@ -169,7 +170,7 @@ func (f *sendReceiveFolder) pull() bool {
}
}()
if err := f.ignores.Load(".stignore"); err != nil && !fs.IsNotExist(err) {
err = fmt.Errorf("loading ignores: %v", err)
err = errors.Wrap(err, "loading ignores")
f.setError(err)
return false
}
@ -210,9 +211,10 @@ func (f *sendReceiveFolder) pull() bool {
}
f.pullErrorsMut.Lock()
hasPullErrs := len(f.pullErrors) > 0
pullErrNum := len(f.pullErrors)
f.pullErrorsMut.Unlock()
if hasPullErrs {
if pullErrNum > 0 {
l.Infof("%v: Failed to sync %v items", f.Description(), pullErrNum)
f.evLogger.Log(events.FolderErrors, map[string]interface{}{
"folder": f.folderID,
"errors": f.Errors(),
@ -227,6 +229,11 @@ func (f *sendReceiveFolder) pull() bool {
// might have failed). One puller iteration handles all files currently
// flagged as needed in the folder.
func (f *sendReceiveFolder) pullerIteration(scanChan chan<- string) int {
f.pullErrorsMut.Lock()
f.oldPullErrors = f.pullErrors
f.pullErrors = make(map[string]string)
f.pullErrorsMut.Unlock()
pullChan := make(chan pullBlockState)
copyChan := make(chan copyBlocksState)
finisherChan := make(chan *sharedPullerState)
@ -269,9 +276,6 @@ func (f *sendReceiveFolder) pullerIteration(scanChan chan<- string) int {
doneWg.Done()
}()
// Clear out all previous errors
f.clearPullErrors()
changed, fileDeletions, dirDeletions, err := f.processNeeded(dbUpdateChan, copyChan, scanChan)
// Signal copy and puller routines that we are done with the in data for
@ -294,6 +298,10 @@ func (f *sendReceiveFolder) pullerIteration(scanChan chan<- string) int {
close(dbUpdateChan)
updateWg.Wait()
f.pullErrorsMut.Lock()
f.oldPullErrors = nil
f.pullErrorsMut.Unlock()
return changed
}
@ -1435,7 +1443,7 @@ func (f *sendReceiveFolder) pullBlock(state pullBlockState, out chan<- *sharedPu
select {
case <-f.ctx.Done():
state.fail(errors.Wrap(f.ctx.Err(), "folder stopped"))
return
break
default:
}
@ -1458,7 +1466,7 @@ func (f *sendReceiveFolder) pullBlock(state pullBlockState, out chan<- *sharedPu
// leastBusy can select another device when someone else asks.
activity.using(selected)
var buf []byte
buf, lastError = f.model.requestGlobal(selected.ID, f.folderID, state.file.Name, state.block.Offset, int(state.block.Size), state.block.Hash, state.block.WeakHash, selected.FromTemporary)
buf, lastError = f.model.requestGlobal(f.ctx, selected.ID, f.folderID, state.file.Name, state.block.Offset, int(state.block.Size), state.block.Hash, state.block.WeakHash, selected.FromTemporary)
activity.done(selected)
if lastError != nil {
l.Debugln("request:", f.folderID, state.file.Name, state.block.Offset, state.block.Size, "returned error:", lastError)
@ -1757,6 +1765,11 @@ func (f *sendReceiveFolder) moveForConflict(name, lastModBy string, scanChan cha
}
func (f *sendReceiveFolder) newPullError(path string, err error) {
if errors.Cause(err) == f.ctx.Err() {
// Error because the folder stopped - no point logging/tracking
return
}
f.pullErrorsMut.Lock()
defer f.pullErrorsMut.Unlock()
@ -1767,18 +1780,19 @@ func (f *sendReceiveFolder) newPullError(path string, err error) {
return
}
l.Infof("Puller (folder %s, item %q): %v", f.Description(), path, err)
// Establish context to differentiate from errors while scanning.
// Use "syncing" as opposed to "pulling" as the latter might be used
// for errors occurring specificly in the puller routine.
f.pullErrors[path] = fmt.Sprintln("syncing:", err)
}
errStr := fmt.Sprintln("syncing:", err)
f.pullErrors[path] = errStr
func (f *sendReceiveFolder) clearPullErrors() {
f.pullErrorsMut.Lock()
f.pullErrors = make(map[string]string)
f.pullErrorsMut.Unlock()
if oldErr, ok := f.oldPullErrors[path]; ok && oldErr == errStr {
l.Debugf("Repeat error on puller (folder %s, item %q): %v", f.Description(), path, err)
delete(f.oldPullErrors, path) // Potential repeats are now caught by f.pullErrors itself
return
}
l.Infof("Puller (folder %s, item %q): %v", f.Description(), path, err)
}
func (f *sendReceiveFolder) Errors() []FileError {

12
lib/model/model.go
View File

@ -8,6 +8,7 @@ package model
import (
"bytes"
"context"
"encoding/json"
"errors"
"fmt"
@ -431,18 +432,13 @@ func (m *model) stopFolder(cfg config.FolderConfiguration, err error) {
tokens := m.folderRunnerTokens[cfg.ID]
m.fmut.RUnlock()
// Close connections to affected devices
// Must happen before stopping the folder service to abort ongoing
// transmissions and thus allow timely service termination.
w := m.closeConns(cfg.DeviceIDs(), err)
for _, id := range tokens {
m.RemoveAndWait(id, 0)
}
// Wait for connections to stop to ensure that no more calls to methods
// expecting this folder to exist happen (e.g. .IndexUpdate).
w.Wait()
m.closeConns(cfg.DeviceIDs(), err).Wait()
}
// Need to hold lock on m.fmut when calling this.
@ -2103,7 +2099,7 @@ func (s *indexSender) sendIndexTo() error {
return err
}
func (m *model) requestGlobal(deviceID protocol.DeviceID, folder, name string, offset int64, size int, hash []byte, weakHash uint32, fromTemporary bool) ([]byte, error) {
func (m *model) requestGlobal(ctx context.Context, deviceID protocol.DeviceID, folder, name string, offset int64, size int, hash []byte, weakHash uint32, fromTemporary bool) ([]byte, error) {
m.pmut.RLock()
nc, ok := m.conn[deviceID]
m.pmut.RUnlock()
@ -2114,7 +2110,7 @@ func (m *model) requestGlobal(deviceID protocol.DeviceID, folder, name string, o
l.Debugf("%v REQ(out): %s: %q / %q o=%d s=%d h=%x wh=%x ft=%t", m, deviceID, folder, name, offset, size, hash, weakHash, fromTemporary)
return nc.Request(folder, name, offset, size, hash, weakHash, fromTemporary)
return nc.Request(ctx, folder, name, offset, size, hash, weakHash, fromTemporary)
}
func (m *model) ScanFolders() map[string]error {

3
lib/model/model_test.go
View File

@ -8,6 +8,7 @@ package model
import (
"bytes"
"context"
"encoding/json"
"fmt"
"io"
@ -254,7 +255,7 @@ func BenchmarkRequestOut(b *testing.B) {
b.ResetTimer()
for i := 0; i < b.N; i++ {
data, err := m.requestGlobal(device1, "default", files[i%n].Name, 0, 32, nil, 0, false)
data, err := m.requestGlobal(context.Background(), device1, "default", files[i%n].Name, 0, 32, nil, 0, false)
if err != nil {
b.Error(err)
}

7
lib/model/requests_test.go
View File

@ -8,6 +8,7 @@ package model
import (
"bytes"
"context"
"errors"
"io/ioutil"
"os"
@ -136,7 +137,7 @@ func TestSymlinkTraversalWrite(t *testing.T) {
}
}
}
fc.requestFn = func(folder, name string, offset int64, size int, hash []byte, fromTemporary bool) ([]byte, error) {
fc.requestFn = func(_ context.Context, folder, name string, offset int64, size int, hash []byte, fromTemporary bool) ([]byte, error) {
if name != "symlink" && strings.HasPrefix(name, "symlink") {
badReq <- name
}
@ -411,7 +412,7 @@ func pullInvalidIgnored(t *testing.T, ft config.FolderType) {
}
// Make sure pulling doesn't interfere, as index updates are racy and
// thus we cannot distinguish between scan and pull results.
fc.requestFn = func(folder, name string, offset int64, size int, hash []byte, fromTemporary bool) ([]byte, error) {
fc.requestFn = func(_ context.Context, folder, name string, offset int64, size int, hash []byte, fromTemporary bool) ([]byte, error) {
return nil, nil
}
fc.mut.Unlock()
@ -996,7 +997,7 @@ func TestNeedFolderFiles(t *testing.T) {
errPreventSync := errors.New("you aren't getting any of this")
fc.mut.Lock()
fc.requestFn = func(string, string, int64, int, []byte, bool) ([]byte, error) {
fc.requestFn = func(context.Context, string, string, int64, int, []byte, bool) ([]byte, error) {
return nil, errPreventSync
}
fc.mut.Unlock()

5
lib/protocol/benchmark_test.go
View File

@ -3,6 +3,7 @@
package protocol
import (
"context"
"crypto/tls"
"encoding/binary"
"net"
@ -80,9 +81,9 @@ func benchmarkRequestsConnPair(b *testing.B, conn0, conn1 net.Conn) {
// Use c0 and c1 for each alternating request, so we get as much
// data flowing in both directions.
if i%2 == 0 {
buf, err = c0.Request("folder", "file", int64(i), 128<<10, nil, 0, false)
buf, err = c0.Request(context.Background(), "folder", "file", int64(i), 128<<10, nil, 0, false)
} else {
buf, err = c1.Request("folder", "file", int64(i), 128<<10, nil, 0, false)
buf, err = c1.Request(context.Background(), "folder", "file", int64(i), 128<<10, nil, 0, false)
}
if err != nil {

34
lib/protocol/protocol.go
View File

@ -3,6 +3,7 @@
package protocol
import (
"context"
"crypto/sha256"
"encoding/binary"
"errors"
@ -136,7 +137,7 @@ type Connection interface {
Name() string
Index(folder string, files []FileInfo) error
IndexUpdate(folder string, files []FileInfo) error
Request(folder string, name string, offset int64, size int, hash []byte, weakHash uint32, fromTemporary bool) ([]byte, error)
Request(ctx context.Context, folder string, name string, offset int64, size int, hash []byte, weakHash uint32, fromTemporary bool) ([]byte, error)
ClusterConfig(config ClusterConfig)
DownloadProgress(folder string, updates []FileDownloadProgressUpdate)
Statistics() Statistics
@ -255,7 +256,7 @@ func (c *rawConnection) Index(folder string, idx []FileInfo) error {
default:
}
c.idxMut.Lock()
c.send(&Index{
c.send(context.TODO(), &Index{
Folder: folder,
Files: idx,
}, nil)
@ -271,7 +272,7 @@ func (c *rawConnection) IndexUpdate(folder string, idx []FileInfo) error {
default:
}
c.idxMut.Lock()
c.send(&IndexUpdate{
c.send(context.TODO(), &IndexUpdate{
Folder: folder,
Files: idx,
}, nil)
@ -280,7 +281,7 @@ func (c *rawConnection) IndexUpdate(folder string, idx []FileInfo) error {
}
// Request returns the bytes for the specified block after fetching them from the connected peer.
func (c *rawConnection) Request(folder string, name string, offset int64, size int, hash []byte, weakHash uint32, fromTemporary bool) ([]byte, error) {
func (c *rawConnection) Request(ctx context.Context, folder string, name string, offset int64, size int, hash []byte, weakHash uint32, fromTemporary bool) ([]byte, error) {
c.nextIDMut.Lock()
id := c.nextID
c.nextID++
@ -294,7 +295,7 @@ func (c *rawConnection) Request(folder string, name string, offset int64, size i
c.awaiting[id] = rc
c.awaitingMut.Unlock()
ok := c.send(&Request{
ok := c.send(ctx, &Request{
ID: id,
Folder: folder,
Name: name,
@ -308,11 +309,15 @@ func (c *rawConnection) Request(folder string, name string, offset int64, size i
return nil, ErrClosed
}
res, ok := <-rc
if !ok {
return nil, ErrClosed
select {
case res, ok := <-rc:
if !ok {
return nil, ErrClosed
}
return res.val, res.err
case <-ctx.Done():
return nil, ctx.Err()
}
return res.val, res.err
}
// ClusterConfig sends the cluster configuration message to the peer.
@ -336,14 +341,14 @@ func (c *rawConnection) Closed() bool {
// DownloadProgress sends the progress updates for the files that are currently being downloaded.
func (c *rawConnection) DownloadProgress(folder string, updates []FileDownloadProgressUpdate) {
c.send(&DownloadProgress{
c.send(context.TODO(), &DownloadProgress{
Folder: folder,
Updates: updates,
}, nil)
}
func (c *rawConnection) ping() bool {
return c.send(&Ping{}, nil)
return c.send(context.Background(), &Ping{}, nil)
}
func (c *rawConnection) readerLoop() {
@ -613,14 +618,14 @@ func checkFilename(name string) error {
func (c *rawConnection) handleRequest(req Request) {
res, err := c.receiver.Request(c.id, req.Folder, req.Name, req.Size, req.Offset, req.Hash, req.WeakHash, req.FromTemporary)
if err != nil {
c.send(&Response{
c.send(context.Background(), &Response{
ID: req.ID,
Code: errorToCode(err),
}, nil)
return
}
done := make(chan struct{})
c.send(&Response{
c.send(context.Background(), &Response{
ID: req.ID,
Data: res.Data(),
Code: errorToCode(nil),
@ -639,12 +644,13 @@ func (c *rawConnection) handleResponse(resp Response) {
c.awaitingMut.Unlock()
}
func (c *rawConnection) send(msg message, done chan struct{}) bool {
func (c *rawConnection) send(ctx context.Context, msg message, done chan struct{}) bool {
select {
case c.outbox <- asyncMessage{msg, done}:
return true
case <-c.preventSends:
case <-c.closed:
case <-ctx.Done():
}
if done != nil {
close(done)

5
lib/protocol/protocol_test.go
View File

@ -4,6 +4,7 @@ package protocol
import (
"bytes"
"context"
"crypto/sha256"
"encoding/hex"
"encoding/json"
@ -77,7 +78,7 @@ func TestClose(t *testing.T) {
c0.Index("default", nil)
c0.Index("default", nil)
if _, err := c0.Request("default", "foo", 0, 0, nil, 0, false); err == nil {
if _, err := c0.Request(context.Background(), "default", "foo", 0, 0, nil, 0, false); err == nil {
t.Error("Request should return an error")
}
}
@ -194,7 +195,7 @@ func TestClusterConfigFirst(t *testing.T) {
c.ClusterConfig(ClusterConfig{})
done := make(chan struct{})
if ok := c.send(&Ping{}, done); !ok {
if ok := c.send(context.Background(), &Ping{}, done); !ok {
t.Fatal("send ping after cluster config returned false")
}
select {

5
lib/protocol/wireformat.go
View File

@ -3,6 +3,7 @@
package protocol
import (
"context"
"path/filepath"
"golang.org/x/text/unicode/norm"
@ -34,7 +35,7 @@ func (c wireFormatConnection) IndexUpdate(folder string, fs []FileInfo) error {
return c.Connection.IndexUpdate(folder, myFs)
}
func (c wireFormatConnection) Request(folder, name string, offset int64, size int, hash []byte, weakHash uint32, fromTemporary bool) ([]byte, error) {
func (c wireFormatConnection) Request(ctx context.Context, folder string, name string, offset int64, size int, hash []byte, weakHash uint32, fromTemporary bool) ([]byte, error) {
name = norm.NFC.String(filepath.ToSlash(name))
return c.Connection.Request(folder, name, offset, size, hash, weakHash, fromTemporary)
return c.Connection.Request(ctx, folder, name, offset, size, hash, weakHash, fromTemporary)
}