func TestIndexChangesAdminBackfill(t *testing.T) {
db := setupTestDBForChangeIndex(t)
defer tearDownTestDB(t, db)
base.EnableLogKey("IndexChanges")
base.EnableLogKey("Hash+")
base.EnableLogKey("Changes+")
base.EnableLogKey("Backfill")
db.ChannelMapper = channels.NewDefaultChannelMapper()
// Create a user with access to channel ABC
authenticator := db.Authenticator()
user, _ := authenticator.NewUser("naomi", "letmein", channels.SetOf("ABC"))
user.SetSequence(1)
authenticator.Save(user)
// Create docs on multiple channels:
db.Put("both_1", Body{"channels": []string{"ABC", "PBS"}})
db.Put("doc0000609", Body{"channels": []string{"PBS"}})
db.Put("doc0000799", Body{"channels": []string{"ABC"}})
time.Sleep(100 * time.Millisecond)
// Check the _changes feed:
db.user, _ = authenticator.GetUser("naomi")
changes, err := db.GetChanges(base.SetOf("*"), getZeroSequence(db))
assertNoError(t, err, "Couldn't GetChanges")
printChanges(changes)
assert.Equals(t, len(changes), 3)
// Modify user to have access to both channels:
log.Println("Get Principal")
userInfo, err := db.GetPrincipal("naomi", true)
assert.True(t, userInfo != nil)
userInfo.ExplicitChannels = base.SetOf("ABC", "PBS")
_, err = db.UpdatePrincipal(*userInfo, true, true)
assertNoError(t, err, "UpdatePrincipal failed")
time.Sleep(100 * time.Millisecond)
// Write a few more docs (that should be returned as non-backfill)
db.Put("doc_nobackfill_1", Body{"channels": []string{"PBS"}})
db.Put("doc_nobackfill_2", Body{"channels": []string{"PBS"}})
time.Sleep(100 * time.Millisecond)
// Check the _changes feed:
log.Println("Get User")
db.user, _ = authenticator.GetUser("naomi")
db.changeCache.waitForSequence(1)
time.Sleep(100 * time.Millisecond)
lastSeq := getLastSeq(changes)
lastSeq, _ = db.ParseSequenceID(lastSeq.String())
changes, err = db.GetChanges(base.SetOf("*"), ChangesOptions{Since: lastSeq})
assertNoError(t, err, "Couldn't GetChanges")
printChanges(changes)
assert.Equals(t, len(changes), 5)
verifyChange(t, changes, "both_1", true)
verifyChange(t, changes, "doc0000609", true)
verifyChange(t, changes, "doc_nobackfill_1", false)
verifyChange(t, changes, "doc_nobackfill_2", false)
}
// Test notification when buffered entries are processed after a user doc arrives.
func TestChannelCacheBufferingWithUserDoc(t *testing.T) {
base.EnableLogKey("Cache")
base.EnableLogKey("Cache+")
base.EnableLogKey("Changes")
base.EnableLogKey("Changes+")
db := setupTestDBWithCacheOptions(t, CacheOptions{})
defer tearDownTestDB(t, db)
db.ChannelMapper = channels.NewDefaultChannelMapper()
// Simulate seq 1 (user doc) being delayed - write 2 first
WriteDirect(db, []string{"ABC"}, 2)
// Start wait for doc in ABC
waiter := db.tapListener.NewWaiterWithChannels(channels.SetOf("ABC"), nil)
successChan := make(chan bool)
go func() {
waiter.Wait()
close(successChan)
}()
// Simulate a user doc update
WriteUserDirect(db, "bernard", 1)
// Wait 3 seconds for notification, else fail the test.
select {
case <-successChan:
log.Println("notification successful")
case <-time.After(time.Second * 3):
assertFailed(t, "No notification after 3 seconds")
}
}
// Test backfill of late arriving sequences to the channel caches
func TestChannelCacheBackfill(t *testing.T) {
base.EnableLogKey("Cache")
base.EnableLogKey("Changes+")
db := setupTestDBWithCacheOptions(t, shortWaitCache())
defer tearDownTestDB(t, db)
db.ChannelMapper = channels.NewDefaultChannelMapper()
// Create a user with access to channel ABC
authenticator := db.Authenticator()
user, _ := authenticator.NewUser("naomi", "letmein", channels.SetOf("ABC", "PBS", "NBC", "TBS"))
authenticator.Save(user)
// Simulate seq 3 being delayed - write 1,2,4,5
WriteDirect(db, []string{"ABC", "NBC"}, 1)
WriteDirect(db, []string{"ABC"}, 2)
WriteDirect(db, []string{"ABC", "PBS"}, 5)
WriteDirect(db, []string{"ABC", "PBS"}, 6)
// Test that retrieval isn't blocked by skipped sequences
db.changeCache.waitForSequenceID(SequenceID{Seq: 6})
db.user, _ = authenticator.GetUser("naomi")
changes, err := db.GetChanges(base.SetOf("*"), ChangesOptions{Since: SequenceID{Seq: 0}})
assertNoError(t, err, "Couldn't GetChanges")
assert.Equals(t, len(changes), 4)
assert.DeepEquals(t, changes[0], &ChangeEntry{
Seq: SequenceID{Seq: 1, TriggeredBy: 0, LowSeq: 2},
ID: "doc-1",
Changes: []ChangeRev{{"rev": "1-a"}}})
lastSeq := changes[len(changes)-1].Seq
// Validate insert to various cache states
WriteDirect(db, []string{"ABC", "NBC", "PBS", "TBS"}, 3)
WriteDirect(db, []string{"CBS"}, 7)
db.changeCache.waitForSequenceID(SequenceID{Seq: 7})
// verify insert at start (PBS)
pbsCache := db.changeCache.getChannelCache("PBS")
assert.True(t, verifyCacheSequences(pbsCache, []uint64{3, 5, 6}))
// verify insert at middle (ABC)
abcCache := db.changeCache.getChannelCache("ABC")
assert.True(t, verifyCacheSequences(abcCache, []uint64{1, 2, 3, 5, 6}))
// verify insert at end (NBC)
nbcCache := db.changeCache.getChannelCache("NBC")
assert.True(t, verifyCacheSequences(nbcCache, []uint64{1, 3}))
// verify insert to empty cache (TBS)
tbsCache := db.changeCache.getChannelCache("TBS")
assert.True(t, verifyCacheSequences(tbsCache, []uint64{3}))
// verify changes has three entries (needs to resend all since previous LowSeq, which
// will be the late arriver (3) along with 5, 6)
changes, err = db.GetChanges(base.SetOf("*"), ChangesOptions{Since: lastSeq})
assert.Equals(t, len(changes), 3)
assert.DeepEquals(t, changes[0], &ChangeEntry{
Seq: SequenceID{Seq: 3, LowSeq: 3},
ID: "doc-3",
Changes: []ChangeRev{{"rev": "1-a"}}})
}
func TestDenseBlockMultipleUpdates(t *testing.T) {
base.EnableLogKey("ChannelStorage")
base.EnableLogKey("ChannelStorage+")
indexBucket := testIndexBucket()
defer indexBucket.Close()
block := NewDenseBlock("block1", nil)
// Inserts
entries := make([]*LogEntry, 10)
for i := 0; i < 10; i++ {
vbno := 10*i + 1
sequence := i + 1
entries[i] = makeBlockEntry(fmt.Sprintf("doc%d", i), "1-abc", vbno, sequence, IsNotRemoval, IsAdded)
}
overflow, pendingRemoval, updateClock, err := block.AddEntrySet(entries, indexBucket)
assertNoError(t, err, "Error adding entry set")
assert.Equals(t, len(overflow), 0)
assert.Equals(t, len(pendingRemoval), 0)
assert.Equals(t, block.getEntryCount(), uint16(10))
foundEntries := block.GetAllEntries()
assert.Equals(t, len(foundEntries), 10)
for i := 0; i < 10; i++ {
vbno := 10*i + 1
sequence := i + 1
assertLogEntry(t, foundEntries[i], fmt.Sprintf("doc%d", i), "1-abc", vbno, sequence)
assert.Equals(t, updateClock.GetSequence(uint16(i*10+1)), uint64(i+1))
}
// Updates
entries = make([]*LogEntry, 10)
for i := 0; i < 10; i++ {
vbno := 10*i + 1
sequence := i + 21
entries[i] = makeBlockEntry(fmt.Sprintf("doc%d", i), "2-abc", vbno, sequence, IsNotRemoval, IsNotAdded)
entries[i].PrevSequence = uint64(i + 1)
}
overflow, pendingRemoval, updateClock, err = block.AddEntrySet(entries, indexBucket)
assertNoError(t, err, "Error adding entry set")
assert.Equals(t, len(overflow), 0)
assert.Equals(t, len(pendingRemoval), 0)
assert.Equals(t, int(block.getEntryCount()), 10)
foundEntries = block.GetAllEntries()
assert.Equals(t, len(foundEntries), 10)
for i := 0; i < 10; i++ {
assertLogEntry(t, foundEntries[i], fmt.Sprintf("doc%d", i), "2-abc", 10*i+1, 21+i)
assert.Equals(t, updateClock.GetSequence(uint16(i*10+1)), uint64(i+21))
}
}
func TestChangeIndexChanges(t *testing.T) {
base.EnableLogKey("DIndex+")
db := setupTestDBForChangeIndex(t)
defer tearDownTestDB(t, db)
db.ChannelMapper = channels.NewDefaultChannelMapper()
// Create a user with access to channel ABC
authenticator := db.Authenticator()
user, _ := authenticator.NewUser("naomi", "letmein", channels.SetOf("ABC", "PBS", "NBC", "TBS"))
authenticator.Save(user)
// Write an entry to the bucket
WriteDirectWithKey(db, "1c856b5724dcf4273c3993619900ce7f", []string{}, 1)
time.Sleep(20 * time.Millisecond)
changes, err := db.GetChanges(base.SetOf("*"), ChangesOptions{Since: simpleClockSequence(0)})
assert.True(t, err == nil)
assert.Equals(t, len(changes), 1)
time.Sleep(20 * time.Millisecond)
// Write a few more entries to the bucket
WriteDirectWithKey(db, "12389b182ababd12fff662848edeb908", []string{}, 1)
time.Sleep(20 * time.Millisecond)
changes, err = db.GetChanges(base.SetOf("*"), ChangesOptions{Since: simpleClockSequence(0)})
assert.True(t, err == nil)
assert.Equals(t, len(changes), 2)
}
func TestChangeIndexAddSet(t *testing.T) {
base.EnableLogKey("DIndex+")
changeIndex, bucket := testKvChangeIndex("indexBucket")
defer changeIndex.Stop()
entries := make([]*LogEntry, 1000)
for vb := 0; vb < 1000; vb++ {
entries[vb] = channelEntry(uint16(vb), 1, fmt.Sprintf("foo%d", vb), "1-a", []string{"ABC"})
}
indexPartitions := testPartitionMap()
channelStorage := NewChannelStorage(bucket, "", indexPartitions)
changeIndex.writer.indexEntries(entries, indexPartitions.VbMap, channelStorage)
// wait for add to complete
time.Sleep(50 * time.Millisecond)
// Verify channel clocks
channelClock := base.SequenceClockImpl{}
chanClockBytes, _, err := bucket.GetRaw(getChannelClockKey("ABC"))
err = channelClock.Unmarshal(chanClockBytes)
assertNoError(t, err, "Unmarshal channel clock sequence")
starChannelClock := base.SequenceClockImpl{}
chanClockBytes, _, err = bucket.GetRaw(getChannelClockKey("*"))
err = starChannelClock.Unmarshal(chanClockBytes)
for vb := uint16(0); vb < 1000; vb++ {
assert.Equals(t, channelClock.GetSequence(vb), uint64(1))
assert.Equals(t, starChannelClock.GetSequence(vb), uint64(1))
}
}
func TestLateSequenceAsFirst(t *testing.T) {
base.EnableLogKey("Cache")
context := testBucketContext()
cache := newChannelCache(context, "Test1", 0)
// Add some entries to cache
cache.addToCache(e(5, "doc1", "1-a"), false)
cache.addToCache(e(10, "doc2", "2-a"), false)
cache.addToCache(e(15, "doc3", "3-a"), false)
entries, err := cache.GetChanges(ChangesOptions{Since: SequenceID{Seq: 0}})
assert.Equals(t, len(entries), 3)
assert.True(t, verifyChannelSequences(entries, []uint64{5, 10, 15}))
assert.True(t, verifyChannelDocIDs(entries, []string{"doc1", "doc2", "doc3"}))
assert.True(t, err == nil)
// Add a late-arriving sequence
cache.AddLateSequence(e(3, "doc0", "0-a"))
cache.addToCache(e(3, "doc0", "0-a"), false)
entries, err = cache.GetChanges(ChangesOptions{Since: SequenceID{Seq: 0}})
assert.Equals(t, len(entries), 4)
writeEntries(entries)
assert.True(t, verifyChannelSequences(entries, []uint64{3, 5, 10, 15}))
assert.True(t, verifyChannelDocIDs(entries, []string{"doc0", "doc1", "doc2", "doc3"}))
assert.True(t, err == nil)
}
func TestChangeIndexAddEntry(t *testing.T) {
base.EnableLogKey("DIndex+")
changeIndex, bucket := testKvChangeIndex("indexBucket")
defer changeIndex.Stop()
changeIndex.writer.addToCache(channelEntry(1, 1, "foo1", "1-a", []string{"ABC", "CBS"}))
// wait for add
time.Sleep(50 * time.Millisecond)
// Verify entry
var entry LogEntry
entryBytes, _, err := bucket.GetRaw("_idx_entry:1:1")
assert.True(t, err == nil)
json.Unmarshal(entryBytes, &entry)
assert.Equals(t, entry.DocID, "foo1")
assert.Equals(t, entry.Sequence, uint64(1))
assert.Equals(t, entry.RevID, "1-a")
// Verify Channel Index Block
partitions, err := changeIndex.getIndexPartitions()
assertNoError(t, err, "Get index partitions")
block := NewIndexBlock("ABC", 1, 1, partitions)
blockBytes, _, err := bucket.GetRaw(getIndexBlockKey("ABC", 0, 0))
bucket.Dump()
err = block.Unmarshal(blockBytes)
assertNoError(t, err, "Unmarshal block")
allEntries := block.GetAllEntries()
assert.Equals(t, len(allEntries), 1)
// Verify stable sequence
stableClock, err := changeIndex.GetStableClock(false)
assertNoError(t, err, "Get stable clock")
assert.Equals(t, stableClock.GetSequence(1), uint64(1))
assert.Equals(t, stableClock.GetSequence(2), uint64(0))
// Verify channel sequences
channelClock := base.SequenceClockImpl{}
chanClockBytes, _, err := bucket.GetRaw(getChannelClockKey("ABC"))
log.Println("key:", getChannelClockKey("ABC"))
log.Println("bytes:", chanClockBytes)
err = channelClock.Unmarshal(chanClockBytes)
log.Println("chan ABC", channelClock.GetSequence(1))
assertNoError(t, err, "Unmarshal channel clock sequence")
assert.Equals(t, channelClock.GetSequence(1), uint64(1))
assert.Equals(t, channelClock.GetSequence(2), uint64(0))
channelClock = base.SequenceClockImpl{}
chanClockBytes, _, err = bucket.GetRaw(getChannelClockKey("CBS"))
err = channelClock.Unmarshal(chanClockBytes)
assertNoError(t, err, "Unmarshal channel clock sequence")
assert.Equals(t, channelClock.GetSequence(1), uint64(1))
assert.Equals(t, channelClock.GetSequence(2), uint64(0))
}
func BenchmarkChannelCacheRepeatedDocs95(b *testing.B) {
base.EnableLogKey("CacheTest")
//base.SetLogLevel(2) // disables logging
context := testBucketContext()
cache := newChannelCache(context, "Benchmark", 0)
// generate doc IDs
docIDs, revStrings := generateDocs(95.0, b.N)
b.ResetTimer()
for i := 0; i < b.N; i++ {
cache.addToCache(e(uint64(i), docIDs[i], revStrings[i]), false)
}
}
// Currently disabled, due to test race conditions between the continuous changes start (in its own goroutine),
// and the send of the continuous terminator. We can't ensure that the changes request has been
// started before all other test operations have been sent (so that we never break out of the changes loop)
func RaceTestPollResultLongRunningContinuous(t *testing.T) {
// Reset the index expvars
indexExpvars.Init()
base.EnableLogKey("IndexPoll")
db := setupTestDBForChangeIndex(t)
defer tearDownTestDB(t, db)
db.ChannelMapper = channels.NewDefaultChannelMapper()
WriteDirectWithKey(db, "docABC_1", []string{"ABC"}, 1)
time.Sleep(100 * time.Millisecond)
// Do a basic changes to trigger start of polling for channel
changes, err := db.GetChanges(base.SetOf("ABC"), ChangesOptions{Since: simpleClockSequence(0)})
assertTrue(t, err == nil, "Error getting changes")
assert.Equals(t, len(changes), 1)
log.Printf("Changes:%+v", changes[0])
// Start a continuous changes on channel (ABC). Waitgroup keeps test open until continuous is terminated
var wg sync.WaitGroup
continuousTerminator := make(chan bool)
wg.Add(1)
go func() {
defer wg.Done()
since, err := db.ParseSequenceID("2-0")
abcChanges, err := db.GetChanges(base.SetOf("ABC"), ChangesOptions{Since: since, Wait: true, Continuous: true, Terminator: continuousTerminator})
assertTrue(t, err == nil, "Error getting changes")
log.Printf("Got %d changes", len(abcChanges))
log.Println("Continuous completed")
}()
for i := 0; i < 10000; i++ {
WriteDirectWithKey(db, fmt.Sprintf("docABC_%d", i), []string{"ABC"}, 3)
time.Sleep(1 * time.Millisecond)
}
time.Sleep(1000 * time.Millisecond) // wait for indexing, polling, and changes processing
close(continuousTerminator)
log.Println("closed terminator")
time.Sleep(100 * time.Millisecond)
WriteDirectWithKey(db, "terminatorCheck", []string{"ABC"}, 1)
wg.Wait()
}
// --------------------
// DenseBlockList Tests
// --------------------
func TestDenseBlockList(t *testing.T) {
base.EnableLogKey("ChannelStorage+")
indexBucket := testIndexBucket()
defer indexBucket.Close()
// Initialize a new block list. Will initialize with first block
list := NewDenseBlockList("ABC", 1, indexBucket)
// Simple insert
partitionClock := makePartitionClock(
[]uint16{1, 3, 6, 11},
[]uint64{0, 0, 0, 0},
)
_, err := list.AddBlock()
assertNoError(t, err, "Error adding block to blocklist")
indexBucket.Dump()
// Create a new instance of the same block list, validate contents
newList := NewDenseBlockList("ABC", 1, indexBucket)
assert.Equals(t, len(newList.blocks), 2)
assert.Equals(t, newList.blocks[0].BlockIndex, 0)
// Add a few more blocks to the new list
partitionClock.incrementPartitionClock(1)
_, err = newList.AddBlock()
assertNoError(t, err, "Error adding block2 to blocklist")
assert.Equals(t, len(newList.blocks), 3)
assert.Equals(t, newList.blocks[0].BlockIndex, 0)
assert.Equals(t, newList.blocks[1].BlockIndex, 1)
// Attempt to add a block via original list. Should be cancelled due to cas
// mismatch, and reload the current state (i.e. newList)
partitionClock.incrementPartitionClock(1)
list.AddBlock()
assert.Equals(t, len(list.blocks), 3)
assert.Equals(t, newList.blocks[0].BlockIndex, 0)
assert.Equals(t, newList.blocks[1].BlockIndex, 1)
}
func TestDuplicateDocID(t *testing.T) {
base.EnableLogKey("Cache")
context := testBucketContext()
cache := newChannelCache(context, "Test1", 0)
// Add some entries to cache
cache.addToCache(e(1, "doc1", "1-a"), false)
cache.addToCache(e(2, "doc3", "3-a"), false)
cache.addToCache(e(3, "doc5", "5-a"), false)
entries, err := cache.GetChanges(ChangesOptions{Since: SequenceID{Seq: 0}})
assert.Equals(t, len(entries), 3)
assert.True(t, verifyChannelSequences(entries, []uint64{1, 2, 3}))
assert.True(t, verifyChannelDocIDs(entries, []string{"doc1", "doc3", "doc5"}))
assert.True(t, err == nil)
// Add a new revision matching mid-list
cache.addToCache(e(4, "doc3", "3-b"), false)
entries, err = cache.GetChanges(ChangesOptions{Since: SequenceID{Seq: 0}})
assert.Equals(t, len(entries), 3)
assert.True(t, verifyChannelSequences(entries, []uint64{1, 3, 4}))
assert.True(t, verifyChannelDocIDs(entries, []string{"doc1", "doc5", "doc3"}))
assert.True(t, err == nil)
// Add a new revision matching first
cache.addToCache(e(5, "doc1", "1-b"), false)
entries, err = cache.GetChanges(ChangesOptions{Since: SequenceID{Seq: 0}})
assert.Equals(t, len(entries), 3)
assert.True(t, verifyChannelSequences(entries, []uint64{3, 4, 5}))
assert.True(t, verifyChannelDocIDs(entries, []string{"doc5", "doc3", "doc1"}))
assert.True(t, err == nil)
// Add a new revision matching last
cache.addToCache(e(6, "doc1", "1-c"), false)
entries, err = cache.GetChanges(ChangesOptions{Since: SequenceID{Seq: 0}})
assert.Equals(t, len(entries), 3)
assert.True(t, verifyChannelSequences(entries, []uint64{3, 4, 6}))
assert.True(t, verifyChannelDocIDs(entries, []string{"doc5", "doc3", "doc1"}))
assert.True(t, err == nil)
}
func TestPollResultReuseLongpoll(t *testing.T) {
// Reset the index expvars
indexExpvars.Init()
base.EnableLogKey("IndexPoll")
db := setupTestDBForChangeIndex(t)
defer tearDownTestDB(t, db)
db.ChannelMapper = channels.NewDefaultChannelMapper()
WriteDirectWithKey(db, "docABC_1", []string{"ABC"}, 1)
time.Sleep(100 * time.Millisecond)
// Do a basic changes to trigger start of polling for channel
changes, err := db.GetChanges(base.SetOf("ABC"), ChangesOptions{Since: simpleClockSequence(0)})
assertTrue(t, err == nil, "Error getting changes")
assert.Equals(t, len(changes), 1)
log.Printf("Changes:%+v", changes[0])
// Start a longpoll changes, use waitgroup to delay the test until it returns.
var wg sync.WaitGroup
wg.Add(1)
go func() {
defer wg.Done()
since, err := db.ParseSequenceID("2-0")
assertTrue(t, err == nil, "Error parsing sequence ID")
abcHboChanges, err := db.GetChanges(base.SetOf("ABC", "HBO"), ChangesOptions{Since: since, Wait: true})
assertTrue(t, err == nil, "Error getting changes")
// Expects two changes - the nil that's sent on initial wait, and then docABC_2
assert.Equals(t, len(abcHboChanges), 2)
}()
time.Sleep(100 * time.Millisecond)
// Write an entry to channel ABC to notify the waiting longpoll
WriteDirectWithKey(db, "docABC_2", []string{"ABC"}, 2)
wg.Wait()
// Use expvars to confirm poll hits/misses (can't tell from changes response whether it used poll results,
// or reloaded from index). Expect one poll hit (the longpoll request), and one miss (the basic changes request)
assert.Equals(t, getExpvarAsString(indexExpvars, "getChanges_lastPolled_hit"), "1")
assert.Equals(t, getExpvarAsString(indexExpvars, "getChanges_lastPolled_miss"), "1")
}
func TestCalculateChangedPartitions(t *testing.T) {
base.EnableLogKey("ChannelStorage+")
indexBucket := testIndexBucket()
defer indexBucket.Close()
reader := NewDenseStorageReader(indexBucket, "ABC", testPartitionMap())
startClock := getClockForMap(map[uint16]uint64{
0: 0,
100: 0,
200: 0,
})
endClock := getClockForMap(map[uint16]uint64{
0: 5,
100: 10,
200: 15,
})
changedVbs, changedPartitions := reader.calculateChanged(startClock, endClock)
assert.Equals(t, len(changedVbs), 3)
assert.Equals(t, changedVbs[0], uint16(0)) // Partition 0
assert.Equals(t, changedVbs[1], uint16(100)) // Partition 6
assert.Equals(t, changedVbs[2], uint16(200)) // Partition 12
changedPartitionCount := 0
for partition, partitionRange := range changedPartitions {
if partitionRange != nil {
changedPartitionCount++
assertTrue(t, partition == 0 || partition == 6 || partition == 12, "Unexpected changed partition")
}
}
assert.Equals(t, changedPartitions[0].Since.GetSequence(0), uint64(0))
assert.Equals(t, changedPartitions[6].Since.GetSequence(100), uint64(0))
assert.Equals(t, changedPartitions[12].Since.GetSequence(200), uint64(0))
assert.Equals(t, changedPartitions[0].To.GetSequence(0), uint64(5))
assert.Equals(t, changedPartitions[6].To.GetSequence(100), uint64(10))
assert.Equals(t, changedPartitions[12].To.GetSequence(200), uint64(15))
assert.Equals(t, changedPartitionCount, 3)
}
// Test size config
func TestChannelCacheSize(t *testing.T) {
base.EnableLogKey("Cache")
channelOptions := ChannelCacheOptions{
ChannelCacheMinLength: 600,
ChannelCacheMaxLength: 600,
}
options := CacheOptions{
ChannelCacheOptions: channelOptions,
}
log.Printf("Options in test:%+v", options)
db := setupTestDBWithCacheOptions(t, options)
defer tearDownTestDB(t, db)
db.ChannelMapper = channels.NewDefaultChannelMapper()
// Create a user with access to channel ABC
authenticator := db.Authenticator()
user, _ := authenticator.NewUser("naomi", "letmein", channels.SetOf("ABC"))
authenticator.Save(user)
// Write 750 docs to channel ABC
for i := 1; i <= 750; i++ {
WriteDirect(db, []string{"ABC"}, uint64(i))
}
// Validate that retrieval returns expected sequences
db.changeCache.waitForSequence(750)
db.user, _ = authenticator.GetUser("naomi")
changes, err := db.GetChanges(base.SetOf("ABC"), ChangesOptions{Since: SequenceID{Seq: 0}})
assertNoError(t, err, "Couldn't GetChanges")
assert.Equals(t, len(changes), 750)
// Validate that cache stores the expected number of values
changeCache, ok := db.changeCache.(*changeCache)
assertTrue(t, ok, "Testing skipped sequences without a change cache")
abcCache := changeCache.channelCaches["ABC"]
assert.Equals(t, len(abcCache.logs), 600)
}
// Reads the command line flags and the optional config file.
func ParseCommandLine() {
siteURL := flag.String("personaOrigin", "", "Base URL that clients use to connect to the server")
addr := flag.String("interface", DefaultInterface, "Address to bind to")
authAddr := flag.String("adminInterface", DefaultAdminInterface, "Address to bind admin interface to")
profAddr := flag.String("profileInterface", "", "Address to bind profile interface to")
configServer := flag.String("configServer", "", "URL of server that can return database configs")
deploymentID := flag.String("deploymentID", "", "Customer/project identifier for stats reporting")
couchbaseURL := flag.String("url", DefaultServer, "Address of Couchbase server")
poolName := flag.String("pool", DefaultPool, "Name of pool")
bucketName := flag.String("bucket", "sync_gateway", "Name of bucket")
dbName := flag.String("dbname", "", "Name of Couchbase Server database (defaults to name of bucket)")
pretty := flag.Bool("pretty", false, "Pretty-print JSON responses")
verbose := flag.Bool("verbose", false, "Log more info about requests")
logKeys := flag.String("log", "", "Log keywords, comma separated")
logFilePath := flag.String("logFilePath", "", "Path to log file")
skipRunModeValidation := flag.Bool("skipRunModeValidation", false, "Skip config validation for runmode (accel vs normal sg)")
flag.Parse()
if flag.NArg() > 0 {
// Read the configuration file(s), if any:
for i := 0; i < flag.NArg(); i++ {
filename := flag.Arg(i)
c, err := ReadServerConfig(filename)
if err != nil {
base.LogFatal("Error reading config file %s: %v", filename, err)
}
if config == nil {
config = c
} else {
if err := config.MergeWith(c); err != nil {
base.LogFatal("Error reading config file %s: %v", filename, err)
}
}
}
// Override the config file with global settings from command line flags:
if *addr != DefaultInterface {
config.Interface = addr
}
if *authAddr != DefaultAdminInterface {
config.AdminInterface = authAddr
}
if *profAddr != "" {
config.ProfileInterface = profAddr
}
if *configServer != "" {
config.ConfigServer = configServer
}
if *deploymentID != "" {
config.DeploymentID = deploymentID
}
if *pretty {
config.Pretty = *pretty
}
if config.Log != nil {
base.ParseLogFlags(config.Log)
}
// If the interfaces were not specified in either the config file or
// on the command line, set them to the default values
if config.Interface == nil {
config.Interface = &DefaultInterface
}
if config.AdminInterface == nil {
config.AdminInterface = &DefaultAdminInterface
}
if *logFilePath != "" {
config.LogFilePath = logFilePath
}
if *skipRunModeValidation == true {
config.SkipRunmodeValidation = *skipRunModeValidation
}
} else {
// If no config file is given, create a default config, filled in from command line flags:
if *dbName == "" {
*dbName = *bucketName
}
// At this point the addr is either:
// - A value provided by the user, in which case we want to leave it as is
// - The default value (":4984"), which is actually _not_ the default value we
// want for this case, since we are enabling insecure mode. We want "localhost:4984" instead.
// See #708 for more details
if *addr == DefaultInterface {
*addr = "localhost:4984"
}
config = &ServerConfig{
Interface: addr,
AdminInterface: authAddr,
ProfileInterface: profAddr,
Pretty: *pretty,
Databases: map[string]*DbConfig{
*dbName: {
Name: *dbName,
BucketConfig: BucketConfig{
Server: couchbaseURL,
Bucket: bucketName,
Pool: poolName,
},
Users: map[string]*db.PrincipalConfig{
base.GuestUsername: &db.PrincipalConfig{
Disabled: false,
ExplicitChannels: base.SetFromArray([]string{"*"}),
},
},
},
},
}
}
if *siteURL != "" {
if config.Persona == nil {
config.Persona = new(PersonaConfig)
}
config.Persona.Origin = *siteURL
}
base.EnableLogKey("HTTP")
if *verbose {
base.EnableLogKey("HTTP+")
}
base.ParseLogFlag(*logKeys)
//return config
}
func TestDuplicateLateArrivingSequence(t *testing.T) {
base.EnableLogKey("Cache")
context := testBucketContext()
cache := newChannelCache(context, "Test1", 0)
// Add some entries to cache
cache.addToCache(e(10, "doc1", "1-a"), false)
cache.addToCache(e(20, "doc2", "2-a"), false)
cache.addToCache(e(30, "doc3", "3-a"), false)
cache.addToCache(e(40, "doc4", "4-a"), false)
entries, err := cache.GetChanges(ChangesOptions{Since: SequenceID{Seq: 0}})
assert.Equals(t, len(entries), 4)
assert.True(t, verifyChannelSequences(entries, []uint64{10, 20, 30, 40}))
assert.True(t, verifyChannelDocIDs(entries, []string{"doc1", "doc2", "doc3", "doc4"}))
assert.True(t, err == nil)
// Add a late-arriving sequence that should replace earlier sequence
cache.AddLateSequence(e(25, "doc1", "1-c"))
cache.addToCache(e(25, "doc1", "1-c"), false)
entries, err = cache.GetChanges(ChangesOptions{Since: SequenceID{Seq: 0}})
assert.Equals(t, len(entries), 4)
writeEntries(entries)
assert.True(t, verifyChannelSequences(entries, []uint64{20, 25, 30, 40}))
assert.True(t, verifyChannelDocIDs(entries, []string{"doc2", "doc1", "doc3", "doc4"}))
assert.True(t, err == nil)
// Add a late-arriving sequence that should be ignored (later sequence exists for that docID)
cache.AddLateSequence(e(15, "doc1", "1-b"))
cache.addToCache(e(15, "doc1", "1-b"), false)
entries, err = cache.GetChanges(ChangesOptions{Since: SequenceID{Seq: 0}})
assert.Equals(t, len(entries), 4)
writeEntries(entries)
assert.True(t, verifyChannelSequences(entries, []uint64{20, 25, 30, 40}))
assert.True(t, verifyChannelDocIDs(entries, []string{"doc2", "doc1", "doc3", "doc4"}))
assert.True(t, err == nil)
// Add a late-arriving sequence adjacent to same ID (cache inserts differently)
cache.AddLateSequence(e(27, "doc1", "1-d"))
cache.addToCache(e(27, "doc1", "1-d"), false)
entries, err = cache.GetChanges(ChangesOptions{Since: SequenceID{Seq: 0}})
assert.Equals(t, len(entries), 4)
writeEntries(entries)
assert.True(t, verifyChannelSequences(entries, []uint64{20, 27, 30, 40}))
assert.True(t, verifyChannelDocIDs(entries, []string{"doc2", "doc1", "doc3", "doc4"}))
assert.True(t, err == nil)
// Add a late-arriving sequence adjacent to same ID (cache inserts differently)
cache.AddLateSequence(e(41, "doc4", "4-b"))
cache.addToCache(e(41, "doc4", "4-b"), false)
entries, err = cache.GetChanges(ChangesOptions{Since: SequenceID{Seq: 0}})
assert.Equals(t, len(entries), 4)
writeEntries(entries)
assert.True(t, verifyChannelSequences(entries, []uint64{20, 27, 30, 41}))
assert.True(t, verifyChannelDocIDs(entries, []string{"doc2", "doc1", "doc3", "doc4"}))
assert.True(t, err == nil)
// Add late arriving that's duplicate of oldest in cache
cache.AddLateSequence(e(45, "doc2", "2-b"))
cache.addToCache(e(45, "doc2", "2-b"), false)
entries, err = cache.GetChanges(ChangesOptions{Since: SequenceID{Seq: 0}})
assert.Equals(t, len(entries), 4)
writeEntries(entries)
assert.True(t, verifyChannelSequences(entries, []uint64{27, 30, 41, 45}))
assert.True(t, verifyChannelDocIDs(entries, []string{"doc1", "doc3", "doc4", "doc2"}))
assert.True(t, err == nil)
}
// Currently disabled, due to test race conditions between the continuous changes start (in its own goroutine),
// and the send of the continuous terminator. We can't ensure that the changes request has been
// started before all other test operations have been sent (so that we never break out of the changes loop)
func RaceTestPollResultReuseContinuous(t *testing.T) {
// Reset the index expvars
indexExpvars.Init()
base.EnableLogKey("IndexPoll")
db := setupTestDBForChangeIndex(t)
defer tearDownTestDB(t, db)
db.ChannelMapper = channels.NewDefaultChannelMapper()
WriteDirectWithKey(db, "docABC_1", []string{"ABC"}, 1)
time.Sleep(100 * time.Millisecond)
// Do a basic changes to trigger start of polling for channel
changes, err := db.GetChanges(base.SetOf("ABC"), ChangesOptions{Since: simpleClockSequence(0)})
assertTrue(t, err == nil, "Error getting changes")
assert.Equals(t, len(changes), 1)
log.Printf("Changes:%+v", changes[0])
// Start a continuous changes on a different channel (CBS). Waitgroup keeps test open until continuous is terminated
var wg sync.WaitGroup
continuousTerminator := make(chan bool)
wg.Add(1)
go func() {
defer wg.Done()
since, err := db.ParseSequenceID("2-0")
abcHboChanges, err := db.GetChanges(base.SetOf("ABC", "HBO"), ChangesOptions{Since: since, Wait: true, Continuous: true, Terminator: continuousTerminator})
assertTrue(t, err == nil, "Error getting changes")
// Expect 2 entries + 3 nil entries (one per wait)
assert.Equals(t, len(abcHboChanges), 5)
for i := 0; i < len(abcHboChanges); i++ {
log.Printf("Got change:%+v", abcHboChanges[i])
}
log.Println("Continuous completed")
}()
time.Sleep(100 * time.Millisecond)
// Write an entry to channel HBO to shift the continuous since value ahead
WriteDirectWithKey(db, "docHBO_1", []string{"HBO"}, 3)
time.Sleep(1000 * time.Millisecond) // wait for indexing, polling, and changes processing
// Write an entry to channel ABC - last polled should be used
WriteDirectWithKey(db, "docABC_2", []string{"ABC"}, 4)
time.Sleep(1000 * time.Millisecond) // wait for indexing, polling, and changes processing
close(continuousTerminator)
log.Println("closed terminator")
time.Sleep(100 * time.Millisecond)
WriteDirectWithKey(db, "terminatorCheck", []string{"HBO"}, 1)
wg.Wait()
// Use expvars to confirm poll hits/misses (can't tell from changes response whether it used poll results,
// or reloaded from index). Expect two poll hits (docHBO_1, docABC_2), and one miss (the initial changes request)
assert.Equals(t, getExpvarAsString(indexExpvars, "getChanges_lastPolled_hit"), "2")
assert.Equals(t, getExpvarAsString(indexExpvars, "getChanges_lastPolled_miss"), "1")
time.Sleep(100 * time.Millisecond)
// Make a changes request prior to the last polled range, ensure it doesn't reuse polled results
changes, err = db.GetChanges(base.SetOf("ABC"), ChangesOptions{Since: simpleClockSequence(0)})
assert.Equals(t, getExpvarAsString(indexExpvars, "getChanges_lastPolled_hit"), "2")
assert.Equals(t, getExpvarAsString(indexExpvars, "getChanges_lastPolled_miss"), "2")
}
func CouchbaseTestIndexChangesAccessBackfill(t *testing.T) {
// Not walrus compatible, until we add support for meta.vb and meta.vbseq to walrus views.
db := setupTestDBForChangeIndex(t)
defer tearDownTestDB(t, db)
base.EnableLogKey("IndexChanges")
base.EnableLogKey("Changes+")
base.EnableLogKey("Backfill")
db.ChannelMapper = channels.NewChannelMapper(`function(doc, oldDoc) {
if (doc.accessGrant) {
console.log("access grant to " + doc.accessGrant);
access(doc.accessGrant, "PBS");
}
channel(doc.channels);
}`)
// Create a user with access to channel ABC
authenticator := db.Authenticator()
user, _ := authenticator.NewUser("naomi", "letmein", channels.SetOf("ABC"))
authenticator.Save(user)
// Create docs on multiple channels:
_, err := db.Put("both_1", Body{"channels": []string{"ABC", "PBS"}})
assertNoError(t, err, "Put failed")
_, err = db.Put("doc0000609", Body{"channels": []string{"PBS"}})
assertNoError(t, err, "Put failed")
_, err = db.Put("doc0000799", Body{"channels": []string{"ABC"}})
assertNoError(t, err, "Put failed")
time.Sleep(2000 * time.Millisecond)
// Check the _changes feed:
db.user, _ = authenticator.GetUser("naomi")
changes, err := db.GetChanges(base.SetOf("*"), getZeroSequence(db))
assertNoError(t, err, "Couldn't GetChanges")
printChanges(changes)
assert.Equals(t, len(changes), 2)
// Write a doc to grant user access to PBS:
db.Put("doc_grant", Body{"accessGrant": "naomi"})
time.Sleep(1000 * time.Millisecond)
// Write a few more docs (that should be returned as non-backfill)
db.Put("doc_nobackfill_1", Body{"channels": []string{"PBS"}})
db.Put("doc_nobackfill_2", Body{"channels": []string{"PBS"}})
time.Sleep(1000 * time.Millisecond)
// Check the _changes feed:
log.Println("Get User")
db.user, _ = authenticator.GetUser("naomi")
db.changeCache.waitForSequence(1)
time.Sleep(1000 * time.Millisecond)
lastSeq := getLastSeq(changes)
lastSeq, _ = db.ParseSequenceID(lastSeq.String())
log.Println("Get Changes")
changes, err = db.GetChanges(base.SetOf("*"), ChangesOptions{Since: lastSeq})
assertNoError(t, err, "Couldn't GetChanges")
printChanges(changes)
assert.Equals(t, len(changes), 5)
verifyChange(t, changes, "both_1", true)
verifyChange(t, changes, "doc0000609", true)
verifyChange(t, changes, "doc_nobackfill_1", false)
verifyChange(t, changes, "doc_nobackfill_2", false)
}
func TestChangeIndexGetChanges(t *testing.T) {
base.EnableLogKey("DIndex+")
changeIndex, bucket := testKvChangeIndex("indexBucket")
defer changeIndex.Stop()
// Add entries across multiple partitions
changeIndex.writer.addToCache(channelEntry(100, 1, "foo1", "1-a", []string{"ABC", "CBS"}))
changeIndex.writer.addToCache(channelEntry(300, 5, "foo3", "1-a", []string{"ABC", "CBS"}))
changeIndex.writer.addToCache(channelEntry(500, 1, "foo5", "1-a", []string{"ABC", "CBS"}))
// wait for add
time.Sleep(100 * time.Millisecond)
// Verify entries
entries, err := changeIndex.GetChanges("ABC", ChangesOptions{Since: simpleClockSequence(0)})
assert.Equals(t, len(entries), 3)
assert.True(t, err == nil)
// Add entries across multiple partitions in the same block
changeIndex.writer.addToCache(channelEntry(101, 1, "foo101-1", "1-a", []string{"ABC", "CBS"}))
changeIndex.writer.addToCache(channelEntry(100, 8, "foo100-8", "1-a", []string{"ABC", "CBS"}))
changeIndex.writer.addToCache(channelEntry(498, 3, "foo498-3", "1-a", []string{"ABC", "CBS"}))
// wait for add
time.Sleep(100 * time.Millisecond)
bucket.Dump()
// Verify entries
entries, err = changeIndex.GetChanges("ABC", ChangesOptions{Since: simpleClockSequence(0)})
assert.Equals(t, len(entries), 6)
assert.True(t, err == nil)
// Add entries across multiple partitions, multiple blocks
changeIndex.writer.addToCache(channelEntry(101, 10001, "foo101-10001", "1-a", []string{"ABC", "CBS"}))
changeIndex.writer.addToCache(channelEntry(100, 10100, "foo100-10100", "1-a", []string{"ABC", "CBS"}))
changeIndex.writer.addToCache(channelEntry(498, 20003, "foo498-20003", "1-a", []string{"ABC", "CBS"}))
// wait for add
time.Sleep(100 * time.Millisecond)
// Verify entries
entries, err = changeIndex.GetChanges("ABC", ChangesOptions{Since: simpleClockSequence(0)})
assert.Equals(t, len(entries), 9)
assert.True(t, err == nil)
// Retrieval for a more restricted range
entries, err = changeIndex.GetChanges("ABC", ChangesOptions{Since: simpleClockSequence(100)})
assert.Equals(t, len(entries), 3)
assert.True(t, err == nil)
// Retrieval for a more restricted range where the since matches a valid sequence number (since border case)
entries, err = changeIndex.GetChanges("ABC", ChangesOptions{Since: simpleClockSequence(10100)})
assert.Equals(t, len(entries), 1)
assert.True(t, err == nil)
// Add entries that skip a block in a partition
changeIndex.writer.addToCache(channelEntry(800, 100, "foo800-100", "1-a", []string{"ABC", "CBS"}))
changeIndex.writer.addToCache(channelEntry(800, 20100, "foo800-20100", "1-a", []string{"ABC", "CBS"}))
// wait for add
time.Sleep(100 * time.Millisecond)
// Verify entries
entries, err = changeIndex.GetChanges("ABC", ChangesOptions{Since: simpleClockSequence(0)})
assert.Equals(t, len(entries), 11)
assert.True(t, err == nil)
// Test deduplication by doc id, including across empty blocks
changeIndex.writer.addToCache(channelEntry(700, 100, "foo700", "1-a", []string{"DUP"}))
changeIndex.writer.addToCache(channelEntry(700, 200, "foo700", "1-b", []string{"DUP"}))
changeIndex.writer.addToCache(channelEntry(700, 300, "foo700", "1-c", []string{"DUP"}))
changeIndex.writer.addToCache(channelEntry(700, 10100, "foo700", "1-d", []string{"DUP"}))
changeIndex.writer.addToCache(channelEntry(700, 30100, "foo700", "1-e", []string{"DUP"}))
// wait for add
time.Sleep(100 * time.Millisecond)
// Verify entries
entries, err = changeIndex.GetChanges("DUP", ChangesOptions{Since: simpleClockSequence(0)})
assert.Equals(t, len(entries), 1)
assert.True(t, err == nil)
bucket.Dump()
}
func TestDenseBlockOverflow(t *testing.T) {
base.EnableLogKey("ChannelStorage")
indexBucket := testIndexBucket()
defer indexBucket.Close()
block := NewDenseBlock("block1", nil)
// Insert 100 entries, no overflow
entries := make([]*LogEntry, 100)
for i := 0; i < 100; i++ {
vbno := 100
sequence := i + 1
entries[i] = makeBlockEntry(fmt.Sprintf("longerDocumentID-%d", sequence), "1-abcdef01234567890", vbno, sequence, IsNotRemoval, IsAdded)
}
overflow, pendingRemoval, updateClock, err := block.AddEntrySet(entries, indexBucket)
assertNoError(t, err, "Error adding entry set")
assert.Equals(t, len(overflow), 0)
assert.Equals(t, len(pendingRemoval), 0)
assert.Equals(t, int(block.getEntryCount()), 100)
assert.Equals(t, updateClock.GetSequence(100), uint64(100))
foundEntries := block.GetAllEntries()
assert.Equals(t, len(foundEntries), 100)
for i := 0; i < 100; i++ {
assertLogEntriesEqual(t, foundEntries[i], entries[i])
}
// Insert 100 more entries, expect overflow. Based on this test's doc/rev ids, expect to fit 188 entries in
// the default block size.
entries = make([]*LogEntry, 100)
for i := 0; i < 100; i++ {
vbno := 100
sequence := i + 101
entries[i] = makeBlockEntry(fmt.Sprintf("longerDocumentID-%d", sequence), "1-abcdef01234567890", vbno, sequence, IsNotRemoval, IsAdded)
}
overflow, pendingRemoval, updateClock, err = block.AddEntrySet(entries, indexBucket)
assertNoError(t, err, "Error adding entry set")
assert.Equals(t, len(overflow), 12)
assert.Equals(t, len(pendingRemoval), 0)
assert.Equals(t, int(block.getEntryCount()), 188)
assert.Equals(t, len(block.value), 10046)
assert.Equals(t, updateClock.GetSequence(100), uint64(188))
// Validate overflow contents (last 12 entries)
for i := 0; i < 12; i++ {
assertLogEntriesEqual(t, overflow[i], entries[i+88])
}
foundEntries = block.GetAllEntries()
assert.Equals(t, len(foundEntries), 188)
for i := 0; i < 188; i++ {
vbno := 100
sequence := i + 1
assertLogEntry(t, foundEntries[i], fmt.Sprintf("longerDocumentID-%d", sequence), "1-abcdef01234567890", vbno, sequence)
}
// Retry the 12 entries, all should overflow
var newOverflow []*LogEntry
newOverflow, pendingRemoval, updateClock, err = block.AddEntrySet(overflow, indexBucket)
assertNoError(t, err, "Error adding entry set")
assert.Equals(t, len(newOverflow), 12)
assert.Equals(t, len(pendingRemoval), 0)
assert.Equals(t, int(block.getEntryCount()), 188)
assert.Equals(t, len(block.value), 10046)
assert.Equals(t, len(updateClock), 0)
}
func TestIndexChangesAfterChannelAdded(t *testing.T) {
db := setupTestDBForChangeIndex(t)
defer tearDownTestDB(t, db)
base.EnableLogKey("IndexChanges")
base.EnableLogKey("Hash+")
base.EnableLogKey("Changes+")
base.EnableLogKey("Backfill")
db.ChannelMapper = channels.NewDefaultChannelMapper()
// Create a user with access to channel ABC
authenticator := db.Authenticator()
user, _ := authenticator.NewUser("naomi", "letmein", channels.SetOf("ABC"))
user.SetSequence(1)
authenticator.Save(user)
// Create a doc on two channels (sequence 1):
_, err := db.Put("doc1", Body{"channels": []string{"ABC", "PBS"}})
assertNoError(t, err, "Put failed")
db.changeCache.waitForSequence(1)
time.Sleep(100 * time.Millisecond)
// Modify user to have access to both channels (sequence 2):
userInfo, err := db.GetPrincipal("naomi", true)
assert.True(t, userInfo != nil)
userInfo.ExplicitChannels = base.SetOf("ABC", "PBS")
_, err = db.UpdatePrincipal(*userInfo, true, true)
assertNoError(t, err, "UpdatePrincipal failed")
// Check the _changes feed:
db.changeCache.waitForSequence(1)
time.Sleep(100 * time.Millisecond)
db.Bucket.Dump()
if changeCache, ok := db.changeCache.(*kvChangeIndex); ok {
changeCache.reader.indexReadBucket.Dump()
}
db.user, _ = authenticator.GetUser("naomi")
changes, err := db.GetChanges(base.SetOf("*"), getZeroSequence(db))
assertNoError(t, err, "Couldn't GetChanges")
printChanges(changes)
time.Sleep(250 * time.Millisecond)
assert.Equals(t, len(changes), 2)
verifyChange(t, changes, "_user/naomi", false)
verifyChange(t, changes, "doc1", false)
lastSeq := getLastSeq(changes)
lastSeq, _ = db.ParseSequenceID(lastSeq.String())
// Add a new doc (sequence 3):
_, err = db.Put("doc2", Body{"channels": []string{"PBS"}})
assertNoError(t, err, "Put failed")
time.Sleep(100 * time.Millisecond)
// Check the _changes feed -- this is to make sure the changeCache properly received
// sequence 2 (the user doc) and isn't stuck waiting for it.
db.changeCache.waitForSequence(3)
// changes, err = db.GetChanges(base.SetOf("*"), ChangesOptions{Since: db.ParseSequenceID(lastSeq)})
changes, err = db.GetChanges(base.SetOf("*"), ChangesOptions{Since: lastSeq})
printChanges(changes)
assertNoError(t, err, "Couldn't GetChanges (2nd)")
assert.Equals(t, len(changes), 1)
verifyChange(t, changes, "doc2", false)
// validate from zero
log.Println("From zero:")
//changes, err = db.GetChanges(base.SetOf("*"), ChangesOptions{Since: SequenceID{Seq: 1, TriggeredBy: 2}})
changes, err = db.GetChanges(base.SetOf("*"), getZeroSequence(db))
assertNoError(t, err, "Couldn't GetChanges")
printChanges(changes)
}
func _testChangesAfterChannelAdded(t *testing.T, db *Database) {
base.EnableLogKey("IndexChanges")
base.EnableLogKey("Hash+")
db.ChannelMapper = channels.NewDefaultChannelMapper()
// Create a user with access to channel ABC
authenticator := db.Authenticator()
user, _ := authenticator.NewUser("naomi", "letmein", channels.SetOf("ABC"))
authenticator.Save(user)
// Create a doc on two channels (sequence 1):
revid, _ := db.Put("doc1", Body{"channels": []string{"ABC", "PBS"}})
db.changeCache.waitForSequence(1)
time.Sleep(100 * time.Millisecond)
// Modify user to have access to both channels (sequence 2):
userInfo, err := db.GetPrincipal("naomi", true)
assert.True(t, userInfo != nil)
userInfo.ExplicitChannels = base.SetOf("ABC", "PBS")
_, err = db.UpdatePrincipal(*userInfo, true, true)
assertNoError(t, err, "UpdatePrincipal failed")
// Check the _changes feed:
db.changeCache.waitForSequence(1)
time.Sleep(100 * time.Millisecond)
db.Bucket.Dump()
if changeCache, ok := db.changeCache.(*kvChangeIndex); ok {
changeCache.reader.indexReadBucket.Dump()
}
db.user, _ = authenticator.GetUser("naomi")
changes, err := db.GetChanges(base.SetOf("*"), getZeroSequence(db))
assertNoError(t, err, "Couldn't GetChanges")
printChanges(changes)
time.Sleep(1000 * time.Millisecond)
assert.Equals(t, len(changes), 3)
assert.DeepEquals(t, changes[0], &ChangeEntry{ // Seq 1, from ABC
Seq: SequenceID{Seq: 1},
ID: "doc1",
Changes: []ChangeRev{{"rev": revid}}})
assert.DeepEquals(t, changes[1], &ChangeEntry{ // Seq 1, from PBS backfill
Seq: SequenceID{Seq: 1, TriggeredBy: 2},
ID: "doc1",
Changes: []ChangeRev{{"rev": revid}}})
assert.DeepEquals(t, changes[2], &ChangeEntry{ // Seq 2, from ABC and PBS
Seq: SequenceID{Seq: 2},
ID: "_user/naomi",
Changes: []ChangeRev{}})
lastSeq := getLastSeq(changes)
lastSeq, _ = db.ParseSequenceID(lastSeq.String())
// Add a new doc (sequence 3):
revid, _ = db.Put("doc2", Body{"channels": []string{"PBS"}})
// Check the _changes feed -- this is to make sure the changeCache properly received
// sequence 2 (the user doc) and isn't stuck waiting for it.
db.changeCache.waitForSequence(3)
changes, err = db.GetChanges(base.SetOf("*"), ChangesOptions{Since: lastSeq})
assertNoError(t, err, "Couldn't GetChanges (2nd)")
assert.Equals(t, len(changes), 1)
assert.DeepEquals(t, changes[0], &ChangeEntry{
Seq: SequenceID{Seq: 3},
ID: "doc2",
Changes: []ChangeRev{{"rev": revid}}})
// validate from zero
changes, err = db.GetChanges(base.SetOf("*"), getZeroSequence(db))
assertNoError(t, err, "Couldn't GetChanges")
printChanges(changes)
}