-package main
+// Copyright (C) The Arvados Authors. All rights reserved.
+//
+// SPDX-License-Identifier: AGPL-3.0
+
+package keepstore
import (
"bytes"
+ "context"
+ "crypto/md5"
+ "fmt"
"os"
- "testing"
+ "regexp"
+ "sort"
+ "strconv"
+ "strings"
"time"
+
+ "git.arvados.org/arvados.git/sdk/go/arvados"
+ "git.arvados.org/arvados.git/sdk/go/arvadostest"
+ "git.arvados.org/arvados.git/sdk/go/ctxlog"
+ "github.com/prometheus/client_golang/prometheus"
+ dto "github.com/prometheus/client_model/go"
+ "github.com/sirupsen/logrus"
)
+type TB interface {
+ Error(args ...interface{})
+ Errorf(format string, args ...interface{})
+ Fail()
+ FailNow()
+ Failed() bool
+ Fatal(args ...interface{})
+ Fatalf(format string, args ...interface{})
+ Log(args ...interface{})
+ Logf(format string, args ...interface{})
+}
+
// A TestableVolumeFactory returns a new TestableVolume. The factory
-// function, and the TestableVolume it returns, can use t to write
+// function, and the TestableVolume it returns, can use "t" to write
// logs, fail the current test, etc.
-type TestableVolumeFactory func(t *testing.T) TestableVolume
+type TestableVolumeFactory func(t TB, cluster *arvados.Cluster, volume arvados.Volume, logger logrus.FieldLogger, metrics *volumeMetricsVecs) TestableVolume
// DoGenericVolumeTests runs a set of tests that every TestableVolume
-// is expected to pass. It calls factory to create a new
-// TestableVolume for each test case, to avoid leaking state between
-// tests.
-func DoGenericVolumeTests(t *testing.T, factory TestableVolumeFactory) {
- testDeleteNewBlock(t, factory)
- testDeleteOldBlock(t, factory)
+// is expected to pass. It calls factory to create a new TestableVolume
+// for each test case, to avoid leaking state between tests.
+func DoGenericVolumeTests(t TB, readonly bool, factory TestableVolumeFactory) {
+ var s genericVolumeSuite
+ s.volume.ReadOnly = readonly
+
+ s.testGet(t, factory)
+ s.testGetNoSuchBlock(t, factory)
+
+ s.testCompareNonexistent(t, factory)
+ s.testCompareSameContent(t, factory, TestHash, TestBlock)
+ s.testCompareSameContent(t, factory, EmptyHash, EmptyBlock)
+ s.testCompareWithCollision(t, factory, TestHash, TestBlock, []byte("baddata"))
+ s.testCompareWithCollision(t, factory, TestHash, TestBlock, EmptyBlock)
+ s.testCompareWithCollision(t, factory, EmptyHash, EmptyBlock, TestBlock)
+ s.testCompareWithCorruptStoredData(t, factory, TestHash, TestBlock, []byte("baddata"))
+ s.testCompareWithCorruptStoredData(t, factory, TestHash, TestBlock, EmptyBlock)
+ s.testCompareWithCorruptStoredData(t, factory, EmptyHash, EmptyBlock, []byte("baddata"))
+
+ if !readonly {
+ s.testPutBlockWithSameContent(t, factory, TestHash, TestBlock)
+ s.testPutBlockWithSameContent(t, factory, EmptyHash, EmptyBlock)
+ s.testPutBlockWithDifferentContent(t, factory, arvadostest.MD5CollisionMD5, arvadostest.MD5CollisionData[0], arvadostest.MD5CollisionData[1])
+ s.testPutBlockWithDifferentContent(t, factory, arvadostest.MD5CollisionMD5, EmptyBlock, arvadostest.MD5CollisionData[0])
+ s.testPutBlockWithDifferentContent(t, factory, arvadostest.MD5CollisionMD5, arvadostest.MD5CollisionData[0], EmptyBlock)
+ s.testPutBlockWithDifferentContent(t, factory, EmptyHash, EmptyBlock, arvadostest.MD5CollisionData[0])
+ s.testPutMultipleBlocks(t, factory)
+
+ s.testPutAndTouch(t, factory)
+ }
+ s.testTouchNoSuchBlock(t, factory)
+
+ s.testMtimeNoSuchBlock(t, factory)
+
+ s.testIndexTo(t, factory)
+
+ if !readonly {
+ s.testDeleteNewBlock(t, factory)
+ s.testDeleteOldBlock(t, factory)
+ }
+ s.testDeleteNoSuchBlock(t, factory)
+
+ s.testStatus(t, factory)
+
+ s.testMetrics(t, readonly, factory)
+
+ s.testString(t, factory)
+
+ if readonly {
+ s.testUpdateReadOnly(t, factory)
+ }
+
+ s.testGetConcurrent(t, factory)
+ if !readonly {
+ s.testPutConcurrent(t, factory)
+
+ s.testPutFullBlock(t, factory)
+ }
+
+ s.testTrashUntrash(t, readonly, factory)
+ s.testTrashEmptyTrashUntrash(t, factory)
+}
+
+type genericVolumeSuite struct {
+ cluster *arvados.Cluster
+ volume arvados.Volume
+ logger logrus.FieldLogger
+ metrics *volumeMetricsVecs
+ registry *prometheus.Registry
+}
+
+func (s *genericVolumeSuite) setup(t TB) {
+ s.cluster = testCluster(t)
+ s.logger = ctxlog.TestLogger(t)
+ s.registry = prometheus.NewRegistry()
+ s.metrics = newVolumeMetricsVecs(s.registry)
+}
+
+func (s *genericVolumeSuite) newVolume(t TB, factory TestableVolumeFactory) TestableVolume {
+ return factory(t, s.cluster, s.volume, s.logger, s.metrics)
+}
+
+// Put a test block, get it and verify content
+// Test should pass for both writable and read-only volumes
+func (s *genericVolumeSuite) testGet(t TB, factory TestableVolumeFactory) {
+ s.setup(t)
+ v := s.newVolume(t, factory)
+ defer v.Teardown()
+
+ v.PutRaw(TestHash, TestBlock)
+
+ buf := make([]byte, BlockSize)
+ n, err := v.Get(context.Background(), TestHash, buf)
+ if err != nil {
+ t.Fatal(err)
+ }
+
+ if bytes.Compare(buf[:n], TestBlock) != 0 {
+ t.Errorf("expected %s, got %s", string(TestBlock), string(buf))
+ }
}
-// Calling Delete() for a block immediately after writing it should
-// neither delete the data nor return an error.
-func testDeleteNewBlock(t *testing.T, factory TestableVolumeFactory) {
- v := factory(t)
+// Invoke get on a block that does not exist in volume; should result in error
+// Test should pass for both writable and read-only volumes
+func (s *genericVolumeSuite) testGetNoSuchBlock(t TB, factory TestableVolumeFactory) {
+ s.setup(t)
+ v := s.newVolume(t, factory)
defer v.Teardown()
- v.Put(TEST_HASH, TEST_BLOCK)
- if err := v.Delete(TEST_HASH); err != nil {
+ buf := make([]byte, BlockSize)
+ if _, err := v.Get(context.Background(), TestHash2, buf); err == nil {
+ t.Errorf("Expected error while getting non-existing block %v", TestHash2)
+ }
+}
+
+// Compare() should return os.ErrNotExist if the block does not exist.
+// Otherwise, writing new data causes CompareAndTouch() to generate
+// error logs even though everything is working fine.
+func (s *genericVolumeSuite) testCompareNonexistent(t TB, factory TestableVolumeFactory) {
+ s.setup(t)
+ v := s.newVolume(t, factory)
+ defer v.Teardown()
+
+ err := v.Compare(context.Background(), TestHash, TestBlock)
+ if err != os.ErrNotExist {
+ t.Errorf("Got err %T %q, expected os.ErrNotExist", err, err)
+ }
+}
+
+// Put a test block and compare the locator with same content
+// Test should pass for both writable and read-only volumes
+func (s *genericVolumeSuite) testCompareSameContent(t TB, factory TestableVolumeFactory, testHash string, testData []byte) {
+ s.setup(t)
+ v := s.newVolume(t, factory)
+ defer v.Teardown()
+
+ v.PutRaw(testHash, testData)
+
+ // Compare the block locator with same content
+ err := v.Compare(context.Background(), testHash, testData)
+ if err != nil {
+ t.Errorf("Got err %q, expected nil", err)
+ }
+}
+
+// Test behavior of Compare() when stored data matches expected
+// checksum but differs from new data we need to store. Requires
+// testHash = md5(testDataA).
+//
+// Test should pass for both writable and read-only volumes
+func (s *genericVolumeSuite) testCompareWithCollision(t TB, factory TestableVolumeFactory, testHash string, testDataA, testDataB []byte) {
+ s.setup(t)
+ v := s.newVolume(t, factory)
+ defer v.Teardown()
+
+ v.PutRaw(testHash, testDataA)
+
+ // Compare the block locator with different content; collision
+ err := v.Compare(context.Background(), TestHash, testDataB)
+ if err == nil {
+ t.Errorf("Got err nil, expected error due to collision")
+ }
+}
+
+// Test behavior of Compare() when stored data has become
+// corrupted. Requires testHash = md5(testDataA) != md5(testDataB).
+//
+// Test should pass for both writable and read-only volumes
+func (s *genericVolumeSuite) testCompareWithCorruptStoredData(t TB, factory TestableVolumeFactory, testHash string, testDataA, testDataB []byte) {
+ s.setup(t)
+ v := s.newVolume(t, factory)
+ defer v.Teardown()
+
+ v.PutRaw(TestHash, testDataB)
+
+ err := v.Compare(context.Background(), testHash, testDataA)
+ if err == nil || err == CollisionError {
+ t.Errorf("Got err %+v, expected non-collision error", err)
+ }
+}
+
+// Put a block and put again with same content
+// Test is intended for only writable volumes
+func (s *genericVolumeSuite) testPutBlockWithSameContent(t TB, factory TestableVolumeFactory, testHash string, testData []byte) {
+ s.setup(t)
+ v := s.newVolume(t, factory)
+ defer v.Teardown()
+
+ err := v.Put(context.Background(), testHash, testData)
+ if err != nil {
+ t.Errorf("Got err putting block %q: %q, expected nil", TestBlock, err)
+ }
+
+ err = v.Put(context.Background(), testHash, testData)
+ if err != nil {
+ t.Errorf("Got err putting block second time %q: %q, expected nil", TestBlock, err)
+ }
+}
+
+// Put a block and put again with different content
+// Test is intended for only writable volumes
+func (s *genericVolumeSuite) testPutBlockWithDifferentContent(t TB, factory TestableVolumeFactory, testHash string, testDataA, testDataB []byte) {
+ s.setup(t)
+ v := s.newVolume(t, factory)
+ defer v.Teardown()
+
+ v.PutRaw(testHash, testDataA)
+
+ putErr := v.Put(context.Background(), testHash, testDataB)
+ buf := make([]byte, BlockSize)
+ n, getErr := v.Get(context.Background(), testHash, buf)
+ if putErr == nil {
+ // Put must not return a nil error unless it has
+ // overwritten the existing data.
+ if bytes.Compare(buf[:n], testDataB) != 0 {
+ t.Errorf("Put succeeded but Get returned %+q, expected %+q", buf[:n], testDataB)
+ }
+ } else {
+ // It is permissible for Put to fail, but it must
+ // leave us with either the original data, the new
+ // data, or nothing at all.
+ if getErr == nil && bytes.Compare(buf[:n], testDataA) != 0 && bytes.Compare(buf[:n], testDataB) != 0 {
+ t.Errorf("Put failed but Get returned %+q, which is neither %+q nor %+q", buf[:n], testDataA, testDataB)
+ }
+ }
+}
+
+// Put and get multiple blocks
+// Test is intended for only writable volumes
+func (s *genericVolumeSuite) testPutMultipleBlocks(t TB, factory TestableVolumeFactory) {
+ s.setup(t)
+ v := s.newVolume(t, factory)
+ defer v.Teardown()
+
+ err := v.Put(context.Background(), TestHash, TestBlock)
+ if err != nil {
+ t.Errorf("Got err putting block %q: %q, expected nil", TestBlock, err)
+ }
+
+ err = v.Put(context.Background(), TestHash2, TestBlock2)
+ if err != nil {
+ t.Errorf("Got err putting block %q: %q, expected nil", TestBlock2, err)
+ }
+
+ err = v.Put(context.Background(), TestHash3, TestBlock3)
+ if err != nil {
+ t.Errorf("Got err putting block %q: %q, expected nil", TestBlock3, err)
+ }
+
+ data := make([]byte, BlockSize)
+ n, err := v.Get(context.Background(), TestHash, data)
+ if err != nil {
+ t.Error(err)
+ } else {
+ if bytes.Compare(data[:n], TestBlock) != 0 {
+ t.Errorf("Block present, but got %+q, expected %+q", data[:n], TestBlock)
+ }
+ }
+
+ n, err = v.Get(context.Background(), TestHash2, data)
+ if err != nil {
+ t.Error(err)
+ } else {
+ if bytes.Compare(data[:n], TestBlock2) != 0 {
+ t.Errorf("Block present, but got %+q, expected %+q", data[:n], TestBlock2)
+ }
+ }
+
+ n, err = v.Get(context.Background(), TestHash3, data)
+ if err != nil {
+ t.Error(err)
+ } else {
+ if bytes.Compare(data[:n], TestBlock3) != 0 {
+ t.Errorf("Block present, but to %+q, expected %+q", data[:n], TestBlock3)
+ }
+ }
+}
+
+// testPutAndTouch checks that when applying PUT to a block that
+// already exists, the block's modification time is updated. Intended
+// for only writable volumes.
+func (s *genericVolumeSuite) testPutAndTouch(t TB, factory TestableVolumeFactory) {
+ s.setup(t)
+ v := s.newVolume(t, factory)
+ defer v.Teardown()
+
+ if err := v.Put(context.Background(), TestHash, TestBlock); err != nil {
+ t.Error(err)
+ }
+
+ // We'll verify { t0 < threshold < t1 }, where t0 is the
+ // existing block's timestamp on disk before Put() and t1 is
+ // its timestamp after Put().
+ threshold := time.Now().Add(-time.Second)
+
+ // Set the stored block's mtime far enough in the past that we
+ // can see the difference between "timestamp didn't change"
+ // and "timestamp granularity is too low".
+ v.TouchWithDate(TestHash, time.Now().Add(-20*time.Second))
+
+ // Make sure v.Mtime() agrees the above Utime really worked.
+ if t0, err := v.Mtime(TestHash); err != nil || t0.IsZero() || !t0.Before(threshold) {
+ t.Errorf("Setting mtime failed: %v, %v", t0, err)
+ }
+
+ // Write the same block again.
+ if err := v.Put(context.Background(), TestHash, TestBlock); err != nil {
+ t.Error(err)
+ }
+
+ // Verify threshold < t1
+ if t1, err := v.Mtime(TestHash); err != nil {
+ t.Error(err)
+ } else if t1.Before(threshold) {
+ t.Errorf("t1 %v should be >= threshold %v after v.Put ", t1, threshold)
+ }
+}
+
+// Touching a non-existing block should result in error.
+// Test should pass for both writable and read-only volumes
+func (s *genericVolumeSuite) testTouchNoSuchBlock(t TB, factory TestableVolumeFactory) {
+ s.setup(t)
+ v := s.newVolume(t, factory)
+ defer v.Teardown()
+
+ if err := v.Touch(TestHash); err == nil {
+ t.Error("Expected error when attempted to touch a non-existing block")
+ }
+}
+
+// Invoking Mtime on a non-existing block should result in error.
+// Test should pass for both writable and read-only volumes
+func (s *genericVolumeSuite) testMtimeNoSuchBlock(t TB, factory TestableVolumeFactory) {
+ s.setup(t)
+ v := s.newVolume(t, factory)
+ defer v.Teardown()
+
+ if _, err := v.Mtime("12345678901234567890123456789012"); err == nil {
+ t.Error("Expected error when updating Mtime on a non-existing block")
+ }
+}
+
+// Put a few blocks and invoke IndexTo with:
+// * no prefix
+// * with a prefix
+// * with no such prefix
+// Test should pass for both writable and read-only volumes
+func (s *genericVolumeSuite) testIndexTo(t TB, factory TestableVolumeFactory) {
+ s.setup(t)
+ v := s.newVolume(t, factory)
+ defer v.Teardown()
+
+ // minMtime and maxMtime are the minimum and maximum
+ // acceptable values the index can report for our test
+ // blocks. 1-second precision is acceptable.
+ minMtime := time.Now().UTC().UnixNano()
+ minMtime -= minMtime % 1e9
+
+ v.PutRaw(TestHash, TestBlock)
+ v.PutRaw(TestHash2, TestBlock2)
+ v.PutRaw(TestHash3, TestBlock3)
+
+ maxMtime := time.Now().UTC().UnixNano()
+ if maxMtime%1e9 > 0 {
+ maxMtime -= maxMtime % 1e9
+ maxMtime += 1e9
+ }
+
+ // Blocks whose names aren't Keep hashes should be omitted from
+ // index
+ v.PutRaw("fffffffffnotreallyahashfffffffff", nil)
+ v.PutRaw("FFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFF", nil)
+ v.PutRaw("f0000000000000000000000000000000f", nil)
+ v.PutRaw("f00", nil)
+
+ buf := new(bytes.Buffer)
+ v.IndexTo("", buf)
+ indexRows := strings.Split(string(buf.Bytes()), "\n")
+ sort.Strings(indexRows)
+ sortedIndex := strings.Join(indexRows, "\n")
+ m := regexp.MustCompile(
+ `^\n` + TestHash + `\+\d+ (\d+)\n` +
+ TestHash3 + `\+\d+ \d+\n` +
+ TestHash2 + `\+\d+ \d+$`,
+ ).FindStringSubmatch(sortedIndex)
+ if m == nil {
+ t.Errorf("Got index %q for empty prefix", sortedIndex)
+ } else {
+ mtime, err := strconv.ParseInt(m[1], 10, 64)
+ if err != nil {
+ t.Error(err)
+ } else if mtime < minMtime || mtime > maxMtime {
+ t.Errorf("got %d for TestHash timestamp, expected %d <= t <= %d",
+ mtime, minMtime, maxMtime)
+ }
+ }
+
+ for _, prefix := range []string{"f", "f15", "f15ac"} {
+ buf = new(bytes.Buffer)
+ v.IndexTo(prefix, buf)
+
+ m, err := regexp.MatchString(`^`+TestHash2+`\+\d+ \d+\n$`, string(buf.Bytes()))
+ if err != nil {
+ t.Error(err)
+ } else if !m {
+ t.Errorf("Got index %q for prefix %s", string(buf.Bytes()), prefix)
+ }
+ }
+
+ for _, prefix := range []string{"zero", "zip", "zilch"} {
+ buf = new(bytes.Buffer)
+ err := v.IndexTo(prefix, buf)
+ if err != nil {
+ t.Errorf("Got error on IndexTo with no such prefix %v", err.Error())
+ } else if buf.Len() != 0 {
+ t.Errorf("Expected empty list for IndexTo with no such prefix %s", prefix)
+ }
+ }
+}
+
+// Calling Delete() for a block immediately after writing it (not old enough)
+// should neither delete the data nor return an error.
+// Test is intended for only writable volumes
+func (s *genericVolumeSuite) testDeleteNewBlock(t TB, factory TestableVolumeFactory) {
+ s.setup(t)
+ s.cluster.Collections.BlobSigningTTL.Set("5m")
+ v := s.newVolume(t, factory)
+ defer v.Teardown()
+
+ v.Put(context.Background(), TestHash, TestBlock)
+
+ if err := v.Trash(TestHash); err != nil {
t.Error(err)
}
- if data, err := v.Get(TEST_HASH); err != nil {
+ data := make([]byte, BlockSize)
+ n, err := v.Get(context.Background(), TestHash, data)
+ if err != nil {
t.Error(err)
- } else if bytes.Compare(data, TEST_BLOCK) != 0 {
- t.Error("Block still present, but content is incorrect: %+v != %+v", data, TEST_BLOCK)
+ } else if bytes.Compare(data[:n], TestBlock) != 0 {
+ t.Errorf("Got data %+q, expected %+q", data[:n], TestBlock)
}
}
// Calling Delete() for a block with a timestamp older than
-// blob_signature_ttl seconds in the past should delete the data.
-func testDeleteOldBlock(t *testing.T, factory TestableVolumeFactory) {
- v := factory(t)
+// BlobSigningTTL seconds in the past should delete the data. Test is
+// intended for only writable volumes
+func (s *genericVolumeSuite) testDeleteOldBlock(t TB, factory TestableVolumeFactory) {
+ s.setup(t)
+ s.cluster.Collections.BlobSigningTTL.Set("5m")
+ v := s.newVolume(t, factory)
+ defer v.Teardown()
+
+ v.Put(context.Background(), TestHash, TestBlock)
+ v.TouchWithDate(TestHash, time.Now().Add(-2*s.cluster.Collections.BlobSigningTTL.Duration()))
+
+ if err := v.Trash(TestHash); err != nil {
+ t.Error(err)
+ }
+ data := make([]byte, BlockSize)
+ if _, err := v.Get(context.Background(), TestHash, data); err == nil || !os.IsNotExist(err) {
+ t.Errorf("os.IsNotExist(%v) should have been true", err)
+ }
+
+ _, err := v.Mtime(TestHash)
+ if err == nil || !os.IsNotExist(err) {
+ t.Fatalf("os.IsNotExist(%v) should have been true", err)
+ }
+
+ err = v.Compare(context.Background(), TestHash, TestBlock)
+ if err == nil || !os.IsNotExist(err) {
+ t.Fatalf("os.IsNotExist(%v) should have been true", err)
+ }
+
+ indexBuf := new(bytes.Buffer)
+ v.IndexTo("", indexBuf)
+ if strings.Contains(string(indexBuf.Bytes()), TestHash) {
+ t.Fatalf("Found trashed block in IndexTo")
+ }
+
+ err = v.Touch(TestHash)
+ if err == nil || !os.IsNotExist(err) {
+ t.Fatalf("os.IsNotExist(%v) should have been true", err)
+ }
+}
+
+// Calling Delete() for a block that does not exist should result in error.
+// Test should pass for both writable and read-only volumes
+func (s *genericVolumeSuite) testDeleteNoSuchBlock(t TB, factory TestableVolumeFactory) {
+ s.setup(t)
+ v := s.newVolume(t, factory)
+ defer v.Teardown()
+
+ if err := v.Trash(TestHash2); err == nil {
+ t.Errorf("Expected error when attempting to delete a non-existing block")
+ }
+}
+
+// Invoke Status and verify that VolumeStatus is returned
+// Test should pass for both writable and read-only volumes
+func (s *genericVolumeSuite) testStatus(t TB, factory TestableVolumeFactory) {
+ s.setup(t)
+ v := s.newVolume(t, factory)
+ defer v.Teardown()
+
+ // Get node status and make a basic sanity check.
+ status := v.Status()
+ if status.DeviceNum == 0 {
+ t.Errorf("uninitialized device_num in %v", status)
+ }
+
+ if status.BytesFree == 0 {
+ t.Errorf("uninitialized bytes_free in %v", status)
+ }
+
+ if status.BytesUsed == 0 {
+ t.Errorf("uninitialized bytes_used in %v", status)
+ }
+}
+
+func getValueFrom(cv *prometheus.CounterVec, lbls prometheus.Labels) float64 {
+ c, _ := cv.GetMetricWith(lbls)
+ pb := &dto.Metric{}
+ c.Write(pb)
+ return pb.GetCounter().GetValue()
+}
+
+func (s *genericVolumeSuite) testMetrics(t TB, readonly bool, factory TestableVolumeFactory) {
+ var err error
+
+ s.setup(t)
+ v := s.newVolume(t, factory)
+ defer v.Teardown()
+
+ opsC, _, ioC := s.metrics.getCounterVecsFor(prometheus.Labels{"device_id": v.GetDeviceID()})
+
+ if ioC == nil {
+ t.Error("ioBytes CounterVec is nil")
+ return
+ }
+
+ if getValueFrom(ioC, prometheus.Labels{"direction": "out"})+
+ getValueFrom(ioC, prometheus.Labels{"direction": "in"}) > 0 {
+ t.Error("ioBytes counter should be zero")
+ }
+
+ if opsC == nil {
+ t.Error("opsCounter CounterVec is nil")
+ return
+ }
+
+ var c, writeOpCounter, readOpCounter float64
+
+ readOpType, writeOpType := v.ReadWriteOperationLabelValues()
+ writeOpCounter = getValueFrom(opsC, prometheus.Labels{"operation": writeOpType})
+ readOpCounter = getValueFrom(opsC, prometheus.Labels{"operation": readOpType})
+
+ // Test Put if volume is writable
+ if !readonly {
+ err = v.Put(context.Background(), TestHash, TestBlock)
+ if err != nil {
+ t.Errorf("Got err putting block %q: %q, expected nil", TestBlock, err)
+ }
+ // Check that the write operations counter increased
+ c = getValueFrom(opsC, prometheus.Labels{"operation": writeOpType})
+ if c <= writeOpCounter {
+ t.Error("Operation(s) not counted on Put")
+ }
+ // Check that bytes counter is > 0
+ if getValueFrom(ioC, prometheus.Labels{"direction": "out"}) == 0 {
+ t.Error("ioBytes{direction=out} counter shouldn't be zero")
+ }
+ } else {
+ v.PutRaw(TestHash, TestBlock)
+ }
+
+ buf := make([]byte, BlockSize)
+ _, err = v.Get(context.Background(), TestHash, buf)
+ if err != nil {
+ t.Fatal(err)
+ }
+
+ // Check that the operations counter increased
+ c = getValueFrom(opsC, prometheus.Labels{"operation": readOpType})
+ if c <= readOpCounter {
+ t.Error("Operation(s) not counted on Get")
+ }
+ // Check that the bytes "in" counter is > 0
+ if getValueFrom(ioC, prometheus.Labels{"direction": "in"}) == 0 {
+ t.Error("ioBytes{direction=in} counter shouldn't be zero")
+ }
+}
+
+// Invoke String for the volume; expect non-empty result
+// Test should pass for both writable and read-only volumes
+func (s *genericVolumeSuite) testString(t TB, factory TestableVolumeFactory) {
+ s.setup(t)
+ v := s.newVolume(t, factory)
+ defer v.Teardown()
+
+ if id := v.String(); len(id) == 0 {
+ t.Error("Got empty string for v.String()")
+ }
+}
+
+// Putting, updating, touching, and deleting blocks from a read-only volume result in error.
+// Test is intended for only read-only volumes
+func (s *genericVolumeSuite) testUpdateReadOnly(t TB, factory TestableVolumeFactory) {
+ s.setup(t)
+ v := s.newVolume(t, factory)
defer v.Teardown()
- v.Put(TEST_HASH, TEST_BLOCK)
- v.TouchWithDate(TEST_HASH, time.Now().Add(-2*blob_signature_ttl*time.Second))
- if err := v.Delete(TEST_HASH); err != nil {
+ v.PutRaw(TestHash, TestBlock)
+ buf := make([]byte, BlockSize)
+
+ // Get from read-only volume should succeed
+ _, err := v.Get(context.Background(), TestHash, buf)
+ if err != nil {
+ t.Errorf("got err %v, expected nil", err)
+ }
+
+ // Put a new block to read-only volume should result in error
+ err = v.Put(context.Background(), TestHash2, TestBlock2)
+ if err == nil {
+ t.Errorf("Expected error when putting block in a read-only volume")
+ }
+ _, err = v.Get(context.Background(), TestHash2, buf)
+ if err == nil {
+ t.Errorf("Expected error when getting block whose put in read-only volume failed")
+ }
+
+ // Touch a block in read-only volume should result in error
+ err = v.Touch(TestHash)
+ if err == nil {
+ t.Errorf("Expected error when touching block in a read-only volume")
+ }
+
+ // Delete a block from a read-only volume should result in error
+ err = v.Trash(TestHash)
+ if err == nil {
+ t.Errorf("Expected error when deleting block from a read-only volume")
+ }
+
+ // Overwriting an existing block in read-only volume should result in error
+ err = v.Put(context.Background(), TestHash, TestBlock)
+ if err == nil {
+ t.Errorf("Expected error when putting block in a read-only volume")
+ }
+}
+
+// Launch concurrent Gets
+// Test should pass for both writable and read-only volumes
+func (s *genericVolumeSuite) testGetConcurrent(t TB, factory TestableVolumeFactory) {
+ s.setup(t)
+ v := s.newVolume(t, factory)
+ defer v.Teardown()
+
+ v.PutRaw(TestHash, TestBlock)
+ v.PutRaw(TestHash2, TestBlock2)
+ v.PutRaw(TestHash3, TestBlock3)
+
+ sem := make(chan int)
+ go func() {
+ buf := make([]byte, BlockSize)
+ n, err := v.Get(context.Background(), TestHash, buf)
+ if err != nil {
+ t.Errorf("err1: %v", err)
+ }
+ if bytes.Compare(buf[:n], TestBlock) != 0 {
+ t.Errorf("buf should be %s, is %s", string(TestBlock), string(buf[:n]))
+ }
+ sem <- 1
+ }()
+
+ go func() {
+ buf := make([]byte, BlockSize)
+ n, err := v.Get(context.Background(), TestHash2, buf)
+ if err != nil {
+ t.Errorf("err2: %v", err)
+ }
+ if bytes.Compare(buf[:n], TestBlock2) != 0 {
+ t.Errorf("buf should be %s, is %s", string(TestBlock2), string(buf[:n]))
+ }
+ sem <- 1
+ }()
+
+ go func() {
+ buf := make([]byte, BlockSize)
+ n, err := v.Get(context.Background(), TestHash3, buf)
+ if err != nil {
+ t.Errorf("err3: %v", err)
+ }
+ if bytes.Compare(buf[:n], TestBlock3) != 0 {
+ t.Errorf("buf should be %s, is %s", string(TestBlock3), string(buf[:n]))
+ }
+ sem <- 1
+ }()
+
+ // Wait for all goroutines to finish
+ for done := 0; done < 3; done++ {
+ <-sem
+ }
+}
+
+// Launch concurrent Puts
+// Test is intended for only writable volumes
+func (s *genericVolumeSuite) testPutConcurrent(t TB, factory TestableVolumeFactory) {
+ s.setup(t)
+ v := s.newVolume(t, factory)
+ defer v.Teardown()
+
+ sem := make(chan int)
+ go func(sem chan int) {
+ err := v.Put(context.Background(), TestHash, TestBlock)
+ if err != nil {
+ t.Errorf("err1: %v", err)
+ }
+ sem <- 1
+ }(sem)
+
+ go func(sem chan int) {
+ err := v.Put(context.Background(), TestHash2, TestBlock2)
+ if err != nil {
+ t.Errorf("err2: %v", err)
+ }
+ sem <- 1
+ }(sem)
+
+ go func(sem chan int) {
+ err := v.Put(context.Background(), TestHash3, TestBlock3)
+ if err != nil {
+ t.Errorf("err3: %v", err)
+ }
+ sem <- 1
+ }(sem)
+
+ // Wait for all goroutines to finish
+ for done := 0; done < 3; done++ {
+ <-sem
+ }
+
+ // Double check that we actually wrote the blocks we expected to write.
+ buf := make([]byte, BlockSize)
+ n, err := v.Get(context.Background(), TestHash, buf)
+ if err != nil {
+ t.Errorf("Get #1: %v", err)
+ }
+ if bytes.Compare(buf[:n], TestBlock) != 0 {
+ t.Errorf("Get #1: expected %s, got %s", string(TestBlock), string(buf[:n]))
+ }
+
+ n, err = v.Get(context.Background(), TestHash2, buf)
+ if err != nil {
+ t.Errorf("Get #2: %v", err)
+ }
+ if bytes.Compare(buf[:n], TestBlock2) != 0 {
+ t.Errorf("Get #2: expected %s, got %s", string(TestBlock2), string(buf[:n]))
+ }
+
+ n, err = v.Get(context.Background(), TestHash3, buf)
+ if err != nil {
+ t.Errorf("Get #3: %v", err)
+ }
+ if bytes.Compare(buf[:n], TestBlock3) != 0 {
+ t.Errorf("Get #3: expected %s, got %s", string(TestBlock3), string(buf[:n]))
+ }
+}
+
+// Write and read back a full size block
+func (s *genericVolumeSuite) testPutFullBlock(t TB, factory TestableVolumeFactory) {
+ s.setup(t)
+ v := s.newVolume(t, factory)
+ defer v.Teardown()
+
+ wdata := make([]byte, BlockSize)
+ wdata[0] = 'a'
+ wdata[BlockSize-1] = 'z'
+ hash := fmt.Sprintf("%x", md5.Sum(wdata))
+ err := v.Put(context.Background(), hash, wdata)
+ if err != nil {
+ t.Fatal(err)
+ }
+ buf := make([]byte, BlockSize)
+ n, err := v.Get(context.Background(), hash, buf)
+ if err != nil {
t.Error(err)
}
- if _, err := v.Get(TEST_HASH); err == nil || !os.IsNotExist(err) {
- t.Errorf("os.IsNotExist(%v) should have been true", err.Error())
+ if bytes.Compare(buf[:n], wdata) != 0 {
+ t.Error("buf %+q != wdata %+q", buf[:n], wdata)
+ }
+}
+
+// With BlobTrashLifetime != 0, perform:
+// Trash an old block - which either raises ErrNotImplemented or succeeds
+// Untrash - which either raises ErrNotImplemented or succeeds
+// Get - which must succeed
+func (s *genericVolumeSuite) testTrashUntrash(t TB, readonly bool, factory TestableVolumeFactory) {
+ s.setup(t)
+ s.cluster.Collections.BlobTrashLifetime.Set("1h")
+ v := s.newVolume(t, factory)
+ defer v.Teardown()
+
+ // put block and backdate it
+ v.PutRaw(TestHash, TestBlock)
+ v.TouchWithDate(TestHash, time.Now().Add(-2*s.cluster.Collections.BlobSigningTTL.Duration()))
+
+ buf := make([]byte, BlockSize)
+ n, err := v.Get(context.Background(), TestHash, buf)
+ if err != nil {
+ t.Fatal(err)
+ }
+ if bytes.Compare(buf[:n], TestBlock) != 0 {
+ t.Errorf("Got data %+q, expected %+q", buf[:n], TestBlock)
+ }
+
+ // Trash
+ err = v.Trash(TestHash)
+ if readonly {
+ if err != MethodDisabledError {
+ t.Fatal(err)
+ }
+ } else if err != nil {
+ if err != ErrNotImplemented {
+ t.Fatal(err)
+ }
+ } else {
+ _, err = v.Get(context.Background(), TestHash, buf)
+ if err == nil || !os.IsNotExist(err) {
+ t.Errorf("os.IsNotExist(%v) should have been true", err)
+ }
+
+ // Untrash
+ err = v.Untrash(TestHash)
+ if err != nil {
+ t.Fatal(err)
+ }
+ }
+
+ // Get the block - after trash and untrash sequence
+ n, err = v.Get(context.Background(), TestHash, buf)
+ if err != nil {
+ t.Fatal(err)
+ }
+ if bytes.Compare(buf[:n], TestBlock) != 0 {
+ t.Errorf("Got data %+q, expected %+q", buf[:n], TestBlock)
+ }
+}
+
+func (s *genericVolumeSuite) testTrashEmptyTrashUntrash(t TB, factory TestableVolumeFactory) {
+ s.setup(t)
+ v := s.newVolume(t, factory)
+ defer v.Teardown()
+
+ checkGet := func() error {
+ buf := make([]byte, BlockSize)
+ n, err := v.Get(context.Background(), TestHash, buf)
+ if err != nil {
+ return err
+ }
+ if bytes.Compare(buf[:n], TestBlock) != 0 {
+ t.Fatalf("Got data %+q, expected %+q", buf[:n], TestBlock)
+ }
+
+ _, err = v.Mtime(TestHash)
+ if err != nil {
+ return err
+ }
+
+ err = v.Compare(context.Background(), TestHash, TestBlock)
+ if err != nil {
+ return err
+ }
+
+ indexBuf := new(bytes.Buffer)
+ v.IndexTo("", indexBuf)
+ if !strings.Contains(string(indexBuf.Bytes()), TestHash) {
+ return os.ErrNotExist
+ }
+
+ return nil
+ }
+
+ // First set: EmptyTrash before reaching the trash deadline.
+
+ s.cluster.Collections.BlobTrashLifetime.Set("1h")
+
+ v.PutRaw(TestHash, TestBlock)
+ v.TouchWithDate(TestHash, time.Now().Add(-2*s.cluster.Collections.BlobSigningTTL.Duration()))
+
+ err := checkGet()
+ if err != nil {
+ t.Fatal(err)
+ }
+
+ // Trash the block
+ err = v.Trash(TestHash)
+ if err == MethodDisabledError || err == ErrNotImplemented {
+ // Skip the trash tests for read-only volumes, and
+ // volume types that don't support
+ // BlobTrashLifetime>0.
+ return
+ }
+
+ err = checkGet()
+ if err == nil || !os.IsNotExist(err) {
+ t.Fatalf("os.IsNotExist(%v) should have been true", err)
+ }
+
+ err = v.Touch(TestHash)
+ if err == nil || !os.IsNotExist(err) {
+ t.Fatalf("os.IsNotExist(%v) should have been true", err)
+ }
+
+ v.EmptyTrash()
+
+ // Even after emptying the trash, we can untrash our block
+ // because the deadline hasn't been reached.
+ err = v.Untrash(TestHash)
+ if err != nil {
+ t.Fatal(err)
+ }
+
+ err = checkGet()
+ if err != nil {
+ t.Fatal(err)
+ }
+
+ err = v.Touch(TestHash)
+ if err != nil {
+ t.Fatal(err)
+ }
+
+ // Because we Touch'ed, need to backdate again for next set of tests
+ v.TouchWithDate(TestHash, time.Now().Add(-2*s.cluster.Collections.BlobSigningTTL.Duration()))
+
+ // If the only block in the trash has already been untrashed,
+ // most volumes will fail a subsequent Untrash with a 404, but
+ // it's also acceptable for Untrash to succeed.
+ err = v.Untrash(TestHash)
+ if err != nil && !os.IsNotExist(err) {
+ t.Fatalf("Expected success or os.IsNotExist(), but got: %v", err)
+ }
+
+ // The additional Untrash should not interfere with our
+ // already-untrashed copy.
+ err = checkGet()
+ if err != nil {
+ t.Fatal(err)
+ }
+
+ // Untrash might have updated the timestamp, so backdate again
+ v.TouchWithDate(TestHash, time.Now().Add(-2*s.cluster.Collections.BlobSigningTTL.Duration()))
+
+ // Second set: EmptyTrash after the trash deadline has passed.
+
+ s.cluster.Collections.BlobTrashLifetime.Set("1ns")
+
+ err = v.Trash(TestHash)
+ if err != nil {
+ t.Fatal(err)
+ }
+ err = checkGet()
+ if err == nil || !os.IsNotExist(err) {
+ t.Fatalf("os.IsNotExist(%v) should have been true", err)
+ }
+
+ // Even though 1ns has passed, we can untrash because we
+ // haven't called EmptyTrash yet.
+ err = v.Untrash(TestHash)
+ if err != nil {
+ t.Fatal(err)
+ }
+ err = checkGet()
+ if err != nil {
+ t.Fatal(err)
+ }
+
+ // Trash it again, and this time call EmptyTrash so it really
+ // goes away.
+ // (In Azure volumes, un/trash changes Mtime, so first backdate again)
+ v.TouchWithDate(TestHash, time.Now().Add(-2*s.cluster.Collections.BlobSigningTTL.Duration()))
+ _ = v.Trash(TestHash)
+ err = checkGet()
+ if err == nil || !os.IsNotExist(err) {
+ t.Fatalf("os.IsNotExist(%v) should have been true", err)
+ }
+ v.EmptyTrash()
+
+ // Untrash won't find it
+ err = v.Untrash(TestHash)
+ if err == nil || !os.IsNotExist(err) {
+ t.Fatalf("os.IsNotExist(%v) should have been true", err)
+ }
+
+ // Get block won't find it
+ err = checkGet()
+ if err == nil || !os.IsNotExist(err) {
+ t.Fatalf("os.IsNotExist(%v) should have been true", err)
+ }
+
+ // Third set: If the same data block gets written again after
+ // being trashed, and then the trash gets emptied, the newer
+ // un-trashed copy doesn't get deleted along with it.
+
+ v.PutRaw(TestHash, TestBlock)
+ v.TouchWithDate(TestHash, time.Now().Add(-2*s.cluster.Collections.BlobSigningTTL.Duration()))
+
+ s.cluster.Collections.BlobTrashLifetime.Set("1ns")
+ err = v.Trash(TestHash)
+ if err != nil {
+ t.Fatal(err)
+ }
+ err = checkGet()
+ if err == nil || !os.IsNotExist(err) {
+ t.Fatalf("os.IsNotExist(%v) should have been true", err)
+ }
+
+ v.PutRaw(TestHash, TestBlock)
+ v.TouchWithDate(TestHash, time.Now().Add(-2*s.cluster.Collections.BlobSigningTTL.Duration()))
+
+ // EmptyTrash should not delete the untrashed copy.
+ v.EmptyTrash()
+ err = checkGet()
+ if err != nil {
+ t.Fatal(err)
+ }
+
+ // Fourth set: If the same data block gets trashed twice with
+ // different deadlines A and C, and then the trash is emptied
+ // at intermediate time B (A < B < C), it is still possible to
+ // untrash the block whose deadline is "C".
+
+ v.PutRaw(TestHash, TestBlock)
+ v.TouchWithDate(TestHash, time.Now().Add(-2*s.cluster.Collections.BlobSigningTTL.Duration()))
+
+ s.cluster.Collections.BlobTrashLifetime.Set("1ns")
+ err = v.Trash(TestHash)
+ if err != nil {
+ t.Fatal(err)
+ }
+
+ v.PutRaw(TestHash, TestBlock)
+ v.TouchWithDate(TestHash, time.Now().Add(-2*s.cluster.Collections.BlobSigningTTL.Duration()))
+
+ s.cluster.Collections.BlobTrashLifetime.Set("1h")
+ err = v.Trash(TestHash)
+ if err != nil {
+ t.Fatal(err)
+ }
+
+ // EmptyTrash should not prevent us from recovering the
+ // time.Hour ("C") trash
+ v.EmptyTrash()
+ err = v.Untrash(TestHash)
+ if err != nil {
+ t.Fatal(err)
+ }
+ err = checkGet()
+ if err != nil {
+ t.Fatal(err)
}
}
projects / arvados.git / blobdiff