+// Copyright (C) The Arvados Authors. All rights reserved.
+//
+// SPDX-License-Identifier: AGPL-3.0
+
package main
import (
"bytes"
+ "context"
+ "crypto/md5"
+ "encoding/json"
"fmt"
- "log"
- "strings"
+ "io/ioutil"
+ "net/http"
+ "net/http/httptest"
+ "os"
"time"
- "github.com/AdRoll/goamz/aws"
+ "git.curoverse.com/arvados.git/sdk/go/arvados"
"github.com/AdRoll/goamz/s3"
"github.com/AdRoll/goamz/s3/s3test"
+ "github.com/ghodss/yaml"
+ "github.com/prometheus/client_golang/prometheus"
check "gopkg.in/check.v1"
)
-type TestableS3Volume struct {
- *S3Volume
- server *s3test.Server
- c *check.C
- serverClock *fakeClock
-}
-
const (
TestBucketName = "testbucket"
)
s3UnsafeDelete = true
}
-func NewTestableS3Volume(c *check.C, readonly bool, replication int) *TestableS3Volume {
- clock := &fakeClock{}
- srv, err := s3test.NewServer(&s3test.Config{Clock: clock})
- c.Assert(err, check.IsNil)
- auth := aws.Auth{}
- region := aws.Region{
- Name: "test-region-1",
- S3Endpoint: srv.URL(),
- S3LocationConstraint: true,
- }
- bucket := &s3.Bucket{
- S3: s3.New(auth, region),
- Name: TestBucketName,
- }
- err = bucket.PutBucket(s3.ACL("private"))
- c.Assert(err, check.IsNil)
-
- return &TestableS3Volume{
- S3Volume: NewS3Volume(auth, region, TestBucketName, readonly, replication),
- server: srv,
- serverClock: clock,
- }
-}
-
var _ = check.Suite(&StubbedS3Suite{})
type StubbedS3Suite struct {
func (s *StubbedS3Suite) TestGeneric(c *check.C) {
DoGenericVolumeTests(c, func(t TB) TestableVolume {
- return NewTestableS3Volume(c, false, 2)
+ // Use a negative raceWindow so s3test's 1-second
+ // timestamp precision doesn't confuse fixRace.
+ return s.newTestableVolume(c, -2*time.Second, false, 2)
})
}
func (s *StubbedS3Suite) TestGenericReadOnly(c *check.C) {
DoGenericVolumeTests(c, func(t TB) TestableVolume {
- return NewTestableS3Volume(c, true, 2)
+ return s.newTestableVolume(c, -2*time.Second, true, 2)
})
}
func (s *StubbedS3Suite) TestIndex(c *check.C) {
- v := NewTestableS3Volume(c, false, 2)
- v.indexPageSize = 3
+ v := s.newTestableVolume(c, 0, false, 2)
+ v.IndexPageSize = 3
for i := 0; i < 256; i++ {
v.PutRaw(fmt.Sprintf("%02x%030x", i, i), []byte{102, 111, 111})
}
}
}
+func (s *StubbedS3Suite) TestStats(c *check.C) {
+ v := s.newTestableVolume(c, 5*time.Minute, false, 2)
+ stats := func() string {
+ buf, err := json.Marshal(v.InternalStats())
+ c.Check(err, check.IsNil)
+ return string(buf)
+ }
+
+ c.Check(stats(), check.Matches, `.*"Ops":0,.*`)
+
+ loc := "acbd18db4cc2f85cedef654fccc4a4d8"
+ _, err := v.Get(context.Background(), loc, make([]byte, 3))
+ c.Check(err, check.NotNil)
+ c.Check(stats(), check.Matches, `.*"Ops":[^0],.*`)
+ c.Check(stats(), check.Matches, `.*"\*s3.Error 404 [^"]*":[^0].*`)
+ c.Check(stats(), check.Matches, `.*"InBytes":0,.*`)
+
+ err = v.Put(context.Background(), loc, []byte("foo"))
+ c.Check(err, check.IsNil)
+ c.Check(stats(), check.Matches, `.*"OutBytes":3,.*`)
+ c.Check(stats(), check.Matches, `.*"PutOps":2,.*`)
+
+ _, err = v.Get(context.Background(), loc, make([]byte, 3))
+ c.Check(err, check.IsNil)
+ _, err = v.Get(context.Background(), loc, make([]byte, 3))
+ c.Check(err, check.IsNil)
+ c.Check(stats(), check.Matches, `.*"InBytes":6,.*`)
+}
+
+type blockingHandler struct {
+ requested chan *http.Request
+ unblock chan struct{}
+}
+
+func (h *blockingHandler) ServeHTTP(w http.ResponseWriter, r *http.Request) {
+ if h.requested != nil {
+ h.requested <- r
+ }
+ if h.unblock != nil {
+ <-h.unblock
+ }
+ http.Error(w, "nothing here", http.StatusNotFound)
+}
+
+func (s *StubbedS3Suite) TestGetContextCancel(c *check.C) {
+ loc := "acbd18db4cc2f85cedef654fccc4a4d8"
+ buf := make([]byte, 3)
+
+ s.testContextCancel(c, func(ctx context.Context, v *TestableS3Volume) error {
+ _, err := v.Get(ctx, loc, buf)
+ return err
+ })
+}
+
+func (s *StubbedS3Suite) TestCompareContextCancel(c *check.C) {
+ loc := "acbd18db4cc2f85cedef654fccc4a4d8"
+ buf := []byte("bar")
+
+ s.testContextCancel(c, func(ctx context.Context, v *TestableS3Volume) error {
+ return v.Compare(ctx, loc, buf)
+ })
+}
+
+func (s *StubbedS3Suite) TestPutContextCancel(c *check.C) {
+ loc := "acbd18db4cc2f85cedef654fccc4a4d8"
+ buf := []byte("foo")
+
+ s.testContextCancel(c, func(ctx context.Context, v *TestableS3Volume) error {
+ return v.Put(ctx, loc, buf)
+ })
+}
+
+func (s *StubbedS3Suite) testContextCancel(c *check.C, testFunc func(context.Context, *TestableS3Volume) error) {
+ handler := &blockingHandler{}
+ srv := httptest.NewServer(handler)
+ defer srv.Close()
+
+ v := s.newTestableVolume(c, 5*time.Minute, false, 2)
+ vol := *v.S3Volume
+ vol.Endpoint = srv.URL
+ v = &TestableS3Volume{S3Volume: &vol}
+ metrics := newVolumeMetricsVecs(prometheus.NewRegistry())
+ v.Start(metrics)
+
+ ctx, cancel := context.WithCancel(context.Background())
+
+ handler.requested = make(chan *http.Request)
+ handler.unblock = make(chan struct{})
+ defer close(handler.unblock)
+
+ doneFunc := make(chan struct{})
+ go func() {
+ err := testFunc(ctx, v)
+ c.Check(err, check.Equals, context.Canceled)
+ close(doneFunc)
+ }()
+
+ timeout := time.After(10 * time.Second)
+
+ // Wait for the stub server to receive a request, meaning
+ // Get() is waiting for an s3 operation.
+ select {
+ case <-timeout:
+ c.Fatal("timed out waiting for test func to call our handler")
+ case <-doneFunc:
+ c.Fatal("test func finished without even calling our handler!")
+ case <-handler.requested:
+ }
+
+ cancel()
+
+ select {
+ case <-timeout:
+ c.Fatal("timed out")
+ case <-doneFunc:
+ }
+}
+
+func (s *StubbedS3Suite) TestBackendStates(c *check.C) {
+ defer func(tl, bs arvados.Duration) {
+ theConfig.TrashLifetime = tl
+ theConfig.BlobSignatureTTL = bs
+ }(theConfig.TrashLifetime, theConfig.BlobSignatureTTL)
+ theConfig.TrashLifetime.Set("1h")
+ theConfig.BlobSignatureTTL.Set("1h")
+
+ v := s.newTestableVolume(c, 5*time.Minute, false, 2)
+ var none time.Time
+
+ putS3Obj := func(t time.Time, key string, data []byte) {
+ if t == none {
+ return
+ }
+ v.serverClock.now = &t
+ v.bucket.Put(key, data, "application/octet-stream", s3ACL, s3.Options{})
+ }
+
+ t0 := time.Now()
+ nextKey := 0
+ for _, scenario := range []struct {
+ label string
+ dataT time.Time
+ recentT time.Time
+ trashT time.Time
+ canGet bool
+ canTrash bool
+ canGetAfterTrash bool
+ canUntrash bool
+ haveTrashAfterEmpty bool
+ freshAfterEmpty bool
+ }{
+ {
+ "No related objects",
+ none, none, none,
+ false, false, false, false, false, false,
+ },
+ {
+ // Stored by older version, or there was a
+ // race between EmptyTrash and Put: Trash is a
+ // no-op even though the data object is very
+ // old
+ "No recent/X",
+ t0.Add(-48 * time.Hour), none, none,
+ true, true, true, false, false, false,
+ },
+ {
+ "Not trash, but old enough to be eligible for trash",
+ t0.Add(-24 * time.Hour), t0.Add(-2 * time.Hour), none,
+ true, true, false, false, false, false,
+ },
+ {
+ "Not trash, and not old enough to be eligible for trash",
+ t0.Add(-24 * time.Hour), t0.Add(-30 * time.Minute), none,
+ true, true, true, false, false, false,
+ },
+ {
+ "Trashed + untrashed copies exist, due to recent race between Trash and Put",
+ t0.Add(-24 * time.Hour), t0.Add(-3 * time.Minute), t0.Add(-2 * time.Minute),
+ true, true, true, true, true, false,
+ },
+ {
+ "Trashed + untrashed copies exist, trash nearly eligible for deletion: prone to Trash race",
+ t0.Add(-24 * time.Hour), t0.Add(-12 * time.Hour), t0.Add(-59 * time.Minute),
+ true, false, true, true, true, false,
+ },
+ {
+ "Trashed + untrashed copies exist, trash is eligible for deletion: prone to Trash race",
+ t0.Add(-24 * time.Hour), t0.Add(-12 * time.Hour), t0.Add(-61 * time.Minute),
+ true, false, true, true, false, false,
+ },
+ {
+ "Trashed + untrashed copies exist, due to old race between Put and unfinished Trash: emptying trash is unsafe",
+ t0.Add(-24 * time.Hour), t0.Add(-12 * time.Hour), t0.Add(-12 * time.Hour),
+ true, false, true, true, true, true,
+ },
+ {
+ "Trashed + untrashed copies exist, used to be unsafe to empty, but since made safe by fixRace+Touch",
+ t0.Add(-time.Second), t0.Add(-time.Second), t0.Add(-12 * time.Hour),
+ true, true, true, true, false, false,
+ },
+ {
+ "Trashed + untrashed copies exist because Trash operation was interrupted (no race)",
+ t0.Add(-24 * time.Hour), t0.Add(-24 * time.Hour), t0.Add(-12 * time.Hour),
+ true, false, true, true, false, false,
+ },
+ {
+ "Trash, not yet eligible for deletion",
+ none, t0.Add(-12 * time.Hour), t0.Add(-time.Minute),
+ false, false, false, true, true, false,
+ },
+ {
+ "Trash, not yet eligible for deletion, prone to races",
+ none, t0.Add(-12 * time.Hour), t0.Add(-59 * time.Minute),
+ false, false, false, true, true, false,
+ },
+ {
+ "Trash, eligible for deletion",
+ none, t0.Add(-12 * time.Hour), t0.Add(-2 * time.Hour),
+ false, false, false, true, false, false,
+ },
+ {
+ "Erroneously trashed during a race, detected before TrashLifetime",
+ none, t0.Add(-30 * time.Minute), t0.Add(-29 * time.Minute),
+ true, false, true, true, true, false,
+ },
+ {
+ "Erroneously trashed during a race, rescue during EmptyTrash despite reaching TrashLifetime",
+ none, t0.Add(-90 * time.Minute), t0.Add(-89 * time.Minute),
+ true, false, true, true, true, false,
+ },
+ {
+ "Trashed copy exists with no recent/* marker (cause unknown); repair by untrashing",
+ none, none, t0.Add(-time.Minute),
+ false, false, false, true, true, true,
+ },
+ } {
+ c.Log("Scenario: ", scenario.label)
+
+ // We have a few tests to run for each scenario, and
+ // the tests are expected to change state. By calling
+ // this setup func between tests, we (re)create the
+ // scenario as specified, using a new unique block
+ // locator to prevent interference from previous
+ // tests.
+
+ setupScenario := func() (string, []byte) {
+ nextKey++
+ blk := []byte(fmt.Sprintf("%d", nextKey))
+ loc := fmt.Sprintf("%x", md5.Sum(blk))
+ c.Log("\t", loc)
+ putS3Obj(scenario.dataT, loc, blk)
+ putS3Obj(scenario.recentT, "recent/"+loc, nil)
+ putS3Obj(scenario.trashT, "trash/"+loc, blk)
+ v.serverClock.now = &t0
+ return loc, blk
+ }
+
+ // Check canGet
+ loc, blk := setupScenario()
+ buf := make([]byte, len(blk))
+ _, err := v.Get(context.Background(), loc, buf)
+ c.Check(err == nil, check.Equals, scenario.canGet)
+ if err != nil {
+ c.Check(os.IsNotExist(err), check.Equals, true)
+ }
+
+ // Call Trash, then check canTrash and canGetAfterTrash
+ loc, _ = setupScenario()
+ err = v.Trash(loc)
+ c.Check(err == nil, check.Equals, scenario.canTrash)
+ _, err = v.Get(context.Background(), loc, buf)
+ c.Check(err == nil, check.Equals, scenario.canGetAfterTrash)
+ if err != nil {
+ c.Check(os.IsNotExist(err), check.Equals, true)
+ }
+
+ // Call Untrash, then check canUntrash
+ loc, _ = setupScenario()
+ err = v.Untrash(loc)
+ c.Check(err == nil, check.Equals, scenario.canUntrash)
+ if scenario.dataT != none || scenario.trashT != none {
+ // In all scenarios where the data exists, we
+ // should be able to Get after Untrash --
+ // regardless of timestamps, errors, race
+ // conditions, etc.
+ _, err = v.Get(context.Background(), loc, buf)
+ c.Check(err, check.IsNil)
+ }
+
+ // Call EmptyTrash, then check haveTrashAfterEmpty and
+ // freshAfterEmpty
+ loc, _ = setupScenario()
+ v.EmptyTrash()
+ _, err = v.bucket.Head("trash/"+loc, nil)
+ c.Check(err == nil, check.Equals, scenario.haveTrashAfterEmpty)
+ if scenario.freshAfterEmpty {
+ t, err := v.Mtime(loc)
+ c.Check(err, check.IsNil)
+ // new mtime must be current (with an
+ // allowance for 1s timestamp precision)
+ c.Check(t.After(t0.Add(-time.Second)), check.Equals, true)
+ }
+
+ // Check for current Mtime after Put (applies to all
+ // scenarios)
+ loc, blk = setupScenario()
+ err = v.Put(context.Background(), loc, blk)
+ c.Check(err, check.IsNil)
+ t, err := v.Mtime(loc)
+ c.Check(err, check.IsNil)
+ c.Check(t.After(t0.Add(-time.Second)), check.Equals, true)
+ }
+}
+
+type TestableS3Volume struct {
+ *S3Volume
+ server *s3test.Server
+ c *check.C
+ serverClock *fakeClock
+}
+
+func (s *StubbedS3Suite) newTestableVolume(c *check.C, raceWindow time.Duration, readonly bool, replication int) *TestableS3Volume {
+ clock := &fakeClock{}
+ srv, err := s3test.NewServer(&s3test.Config{Clock: clock})
+ c.Assert(err, check.IsNil)
+
+ v := &TestableS3Volume{
+ S3Volume: &S3Volume{
+ Bucket: TestBucketName,
+ Endpoint: srv.URL(),
+ Region: "test-region-1",
+ LocationConstraint: true,
+ RaceWindow: arvados.Duration(raceWindow),
+ S3Replication: replication,
+ UnsafeDelete: s3UnsafeDelete,
+ ReadOnly: readonly,
+ IndexPageSize: 1000,
+ },
+ c: c,
+ server: srv,
+ serverClock: clock,
+ }
+ metrics := newVolumeMetricsVecs(prometheus.NewRegistry())
+ v.Start(metrics)
+ err = v.bucket.PutBucket(s3.ACL("private"))
+ c.Assert(err, check.IsNil)
+ return v
+}
+
+func (s *StubbedS3Suite) TestConfig(c *check.C) {
+ var cfg Config
+ err := yaml.Unmarshal([]byte(`
+Volumes:
+ - Type: S3
+ StorageClasses: ["class_a", "class_b"]
+`), &cfg)
+
+ c.Check(err, check.IsNil)
+ c.Check(cfg.Volumes[0].GetStorageClasses(), check.DeepEquals, []string{"class_a", "class_b"})
+}
+
+func (v *TestableS3Volume) Start(vm *volumeMetricsVecs) error {
+ tmp, err := ioutil.TempFile("", "keepstore")
+ v.c.Assert(err, check.IsNil)
+ defer os.Remove(tmp.Name())
+ _, err = tmp.Write([]byte("xxx\n"))
+ v.c.Assert(err, check.IsNil)
+ v.c.Assert(tmp.Close(), check.IsNil)
+
+ v.S3Volume.AccessKeyFile = tmp.Name()
+ v.S3Volume.SecretKeyFile = tmp.Name()
+
+ v.c.Assert(v.S3Volume.Start(vm), check.IsNil)
+ return nil
+}
+
// PutRaw skips the ContentMD5 test
func (v *TestableS3Volume) PutRaw(loc string, block []byte) {
- err := v.Bucket.Put(loc, block, "application/octet-stream", s3ACL, s3.Options{})
+ err := v.bucket.Put(loc, block, "application/octet-stream", s3ACL, s3.Options{})
+ if err != nil {
+ log.Printf("PutRaw: %s: %+v", loc, err)
+ }
+ err = v.bucket.Put("recent/"+loc, nil, "application/octet-stream", s3ACL, s3.Options{})
if err != nil {
- log.Printf("PutRaw: %+v", err)
+ log.Printf("PutRaw: recent/%s: %+v", loc, err)
}
}
// while we do this.
func (v *TestableS3Volume) TouchWithDate(locator string, lastPut time.Time) {
v.serverClock.now = &lastPut
- err := v.Touch(locator)
- if err != nil && !strings.Contains(err.Error(), "PutCopy returned old LastModified") {
- log.Printf("Touch: %+v", err)
+ err := v.bucket.Put("recent/"+locator, nil, "application/octet-stream", s3ACL, s3.Options{})
+ if err != nil {
+ panic(err)
}
v.serverClock.now = nil
}
func (v *TestableS3Volume) Teardown() {
v.server.Quit()
}
+
+func (v *TestableS3Volume) ReadWriteOperationLabelValues() (r, w string) {
+ return "get", "put"
+}
projects / arvados.git / blobdiff