import (
"bytes"
+ "context"
"crypto/md5"
"fmt"
+ "io/ioutil"
"log"
"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"
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, raceWindow time.Duration, 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, raceWindow, readonly, replication),
- server: srv,
- serverClock: clock,
- }
-}
-
var _ = check.Suite(&StubbedS3Suite{})
type StubbedS3Suite struct {
DoGenericVolumeTests(c, func(t TB) TestableVolume {
// Use a negative raceWindow so s3test's 1-second
// timestamp precision doesn't confuse fixRace.
- return NewTestableS3Volume(c, -2*time.Second, false, 2)
+ 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, -2*time.Second, true, 2)
+ return s.newTestableVolume(c, -2*time.Second, true, 2)
})
}
func (s *StubbedS3Suite) TestIndex(c *check.C) {
- v := NewTestableS3Volume(c, 0, 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) TestBackendStates(c *check.C) {
- defer func(tl, bs time.Duration) {
- trashLifetime = tl
- blobSignatureTTL = bs
- }(trashLifetime, blobSignatureTTL)
- trashLifetime = time.Hour
- blobSignatureTTL = time.Hour
+ 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 := NewTestableS3Volume(c, 5*time.Minute, false, 2)
+ v := s.newTestableVolume(c, 5*time.Minute, false, 2)
var none time.Time
- stubKey := func(t time.Time, key string, data []byte) {
+ 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{})
+ v.bucket.Put(key, data, "application/octet-stream", s3ACL, s3.Options{})
}
t0 := time.Now()
nextKey := 0
- for _, test := range []struct {
+ for _, scenario := range []struct {
label string
- data time.Time
- recent time.Time
- trash time.Time
+ 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, false, false, false, false, false,
+ },
{
// Stored by older version, or there was a
// race between EmptyTrash and Put: Trash is a
// old
"No recent/X",
t0.Add(-48 * time.Hour), none, none,
- true, true, true, false, false},
+ true, true, true, false, false, false,
+ },
{
- "Not trash; old enough to trash",
+ "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},
+ true, true, false, false, false, false,
+ },
{
- "Not trash; not old enough to trash",
+ "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},
+ true, true, true, false, false, false,
+ },
{
- "Trash + not-trash: recent race between Trash and Put",
+ "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},
+ true, true, true, true, true, false,
+ },
{
- "Trash + not-trash, nearly eligible for deletion, prone to Trash race",
+ "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},
+ true, false, true, true, true, false,
+ },
{
- "Trash + not-trash, eligible for deletion, prone to Trash race",
+ "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},
- // FIXME: old trash never gets deleted!
- // {
- // "Not trash; old race between Trash and Put, or incomplete Trash",
- // t0.Add(-24 * time.Hour), t0.Add(-12 * time.Hour), t0.Add(-12 * time.Hour),
- // true, false, true, true, false},
+ 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,
+ },
{
- "Trash operation was interrupted",
+ "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},
+ 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, 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, 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, false, false, true, false, false,
+ },
{
- "Erroneously trashed during a race, detected before trashLifetime",
+ "Erroneously trashed during a race, detected before TrashLifetime",
none, t0.Add(-30 * time.Minute), t0.Add(-29 * time.Minute),
- true, false, true, true, true},
+ true, false, true, true, true, false,
+ },
{
- "Erroneously trashed during a race, rescue during EmptyTrash despite reaching trashLifetime",
+ "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},
+ 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: ", test.label)
- var loc string
- var blk []byte
+ 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.
- setup := func() {
+ setupScenario := func() (string, []byte) {
nextKey++
- blk = []byte(fmt.Sprintf("%d", nextKey))
- loc = fmt.Sprintf("%x", md5.Sum(blk))
+ blk := []byte(fmt.Sprintf("%d", nextKey))
+ loc := fmt.Sprintf("%x", md5.Sum(blk))
c.Log("\t", loc)
- stubKey(test.data, loc, blk)
- stubKey(test.recent, "recent/"+loc, nil)
- stubKey(test.trash, "trash/"+loc, blk)
+ putS3Obj(scenario.dataT, loc, blk)
+ putS3Obj(scenario.recentT, "recent/"+loc, nil)
+ putS3Obj(scenario.trashT, "trash/"+loc, blk)
v.serverClock.now = &t0
+ return loc, blk
}
- setup()
+ // Check canGet
+ loc, blk := setupScenario()
buf := make([]byte, len(blk))
- _, err := v.Get(loc, buf)
- c.Check(err == nil, check.Equals, test.canGet)
+ _, 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)
}
- setup()
+ // Call Trash, then check canTrash and canGetAfterTrash
+ loc, blk = setupScenario()
err = v.Trash(loc)
- c.Check(err == nil, check.Equals, test.canTrash)
- _, err = v.Get(loc, buf)
- c.Check(err == nil, check.Equals, test.canGetAfterTrash)
+ 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)
}
- setup()
+ // Call Untrash, then check canUntrash
+ loc, blk = setupScenario()
err = v.Untrash(loc)
- c.Check(err == nil, check.Equals, test.canUntrash)
+ 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)
+ }
- setup()
+ // Call EmptyTrash, then check haveTrashAfterEmpty and
+ // freshAfterEmpty
+ loc, blk = setupScenario()
v.EmptyTrash()
- _, err = v.Bucket.Head("trash/"+loc, nil)
- c.Check(err == nil, check.Equals, test.haveTrashAfterEmpty)
+ _, 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)
+
+ tmp, err := ioutil.TempFile("", "keepstore")
+ c.Assert(err, check.IsNil)
+ defer os.Remove(tmp.Name())
+ _, err = tmp.Write([]byte("xxx\n"))
+ c.Assert(err, check.IsNil)
+ c.Assert(tmp.Close(), check.IsNil)
+
+ v := &TestableS3Volume{
+ S3Volume: &S3Volume{
+ Bucket: TestBucketName,
+ AccessKeyFile: tmp.Name(),
+ SecretKeyFile: tmp.Name(),
+ Endpoint: srv.URL(),
+ Region: "test-region-1",
+ LocationConstraint: true,
+ RaceWindow: arvados.Duration(raceWindow),
+ S3Replication: replication,
+ UnsafeDelete: s3UnsafeDelete,
+ ReadOnly: readonly,
+ IndexPageSize: 1000,
+ },
+ server: srv,
+ serverClock: clock,
}
+ c.Assert(v.Start(), check.IsNil)
+ err = v.bucket.PutBucket(s3.ACL("private"))
+ c.Assert(err, check.IsNil)
+ return v
}
// 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: %+v", err)
}
// while we do this.
func (v *TestableS3Volume) TouchWithDate(locator string, lastPut time.Time) {
v.serverClock.now = &lastPut
- err := v.Bucket.Put("recent/"+locator, nil, "application/octet-stream", s3ACL, s3.Options{})
+ err := v.bucket.Put("recent/"+locator, nil, "application/octet-stream", s3ACL, s3.Options{})
if err != nil {
panic(err)
}
projects / arvados.git / blobdiff