X-Git-Url: https://git.arvados.org/arvados.git/blobdiff_plain/81b8e05dcd7397de4e2facd47be899edb9a21c6a..44321d4b5e7677df2ad70d88db6358b2778b58e5:/services/datamanager/datamanager_test.go

diff --git a/services/datamanager/datamanager_test.go b/services/datamanager/datamanager_test.go
index 64b71dcd1a..39e545dcb8 100644
--- a/services/datamanager/datamanager_test.go
+++ b/services/datamanager/datamanager_test.go
@@ -1,6 +1,8 @@
 package main
 
 import (
+	"encoding/json"
+	"fmt"
 	"git.curoverse.com/arvados.git/sdk/go/arvadosclient"
 	"git.curoverse.com/arvados.git/sdk/go/arvadostest"
 	"git.curoverse.com/arvados.git/sdk/go/keepclient"
@@ -32,20 +34,20 @@ func SetupDataManagerTest(t *testing.T) {
 	var err error
 	arv, err = arvadosclient.MakeArvadosClient()
 	if err != nil {
-		t.Fatal("Error creating arv")
+		t.Fatalf("Error setting up arvados client: %s", err)
 	}
 
 	// keep client
 	keepClient = &keepclient.KeepClient{
 		Arvados:       &arv,
-		Want_replicas: 1,
+		Want_replicas: 2,
 		Using_proxy:   true,
 		Client:        &http.Client{},
 	}
 
 	// discover keep services
 	if err := keepClient.DiscoverKeepServers(); err != nil {
-		t.Fatal("Error discovering keep services")
+		t.Fatalf("Error discovering keep services: %s", err)
 	}
 	for _, host := range keepClient.LocalRoots() {
 		keepServers = append(keepServers, host)
@@ -57,7 +59,7 @@ func TearDownDataManagerTest(t *testing.T) {
 	arvadostest.StopAPI()
 }
 
-func PutBlock(t *testing.T, data string) string {
+func putBlock(t *testing.T, data string) string {
 	locator, _, err := keepClient.PutB([]byte(data))
 	if err != nil {
 		t.Fatalf("Error putting test data for %s %s %v", data, locator, err)
@@ -66,10 +68,11 @@ func PutBlock(t *testing.T, data string) string {
 		t.Fatalf("No locator found after putting test data")
 	}
 
-	return locator
+	splits := strings.Split(locator, "+")
+	return splits[0] + "+" + splits[1]
 }
 
-func GetBlock(t *testing.T, locator string, data string) {
+func getBlock(t *testing.T, locator string, data string) {
 	reader, blocklen, _, err := keepClient.Get(locator)
 	if err != nil {
 		t.Fatalf("Error getting test data in setup for %s %s %v", data, locator, err)
@@ -88,7 +91,7 @@ func GetBlock(t *testing.T, locator string, data string) {
 }
 
 // Create a collection using arv-put
-func CreateCollection(t *testing.T, data string) string {
+func createCollection(t *testing.T, data string) string {
 	tempfile, err := ioutil.TempFile(os.TempDir(), "temp-test-file")
 	defer os.Remove(tempfile.Name())
 
@@ -103,56 +106,81 @@ func CreateCollection(t *testing.T, data string) string {
 		t.Fatalf("Error running arv-put %s", err)
 	}
 
-	collection_uuid := string(output[0:27]) // trim terminating char
-	return collection_uuid
+	uuid := string(output[0:27]) // trim terminating char
+	return uuid
 }
 
-// Get collection using arv-get
-var locatorMatcher = regexp.MustCompile("^([0-9a-f]{32})([+](.*))?$")
+// Get collection locator
+var locatorMatcher = regexp.MustCompile(`^([0-9a-f]{32})\+(\d*)(.*)$`)
 
-func GetCollection(t *testing.T, collection_uuid string) string {
-	// get collection
-	output, err := exec.Command("arv-get", collection_uuid).Output()
+func getCollectionLocator(t *testing.T, uuid string) string {
+	manifest := getCollection(t, uuid)["manifest_text"].(string)
 
+	locator := strings.Split(manifest, " ")[1]
+	match := locatorMatcher.FindStringSubmatch(locator)
+	if match == nil {
+		t.Fatalf("No locator found in collection manifest %s", manifest)
+	}
+
+	return match[1] + "+" + match[2]
+}
+
+func getCollection(t *testing.T, uuid string) Dict {
+	getback := make(Dict)
+	err := arv.Get("collections", uuid, nil, &getback)
 	if err != nil {
-		t.Fatalf("Error during arv-get %s", err)
+		t.Fatalf("Error getting collection %s", err)
+	}
+	if getback["uuid"] != uuid {
+		t.Fatalf("Get collection uuid did not match original: $s, result: $s", uuid, getback["uuid"])
 	}
 
-	locator := strings.Split(string(output), " ")[1]
-	match := locatorMatcher.FindStringSubmatch(locator)
-	if match == nil {
-		t.Fatalf("No locator found in collection manifest %s", string(output))
+	return getback
+}
+
+func updateCollection(t *testing.T, uuid string, paramName string, paramValue string) {
+	err := arv.Update("collections", uuid, arvadosclient.Dict{
+		"collection": arvadosclient.Dict{
+			paramName: paramValue,
+		},
+	}, &arvadosclient.Dict{})
+
+	if err != nil {
+		t.Fatalf("Error updating collection %s", err)
 	}
-	return match[1]
 }
 
 type Dict map[string]interface{}
 
-func DeleteCollection(t *testing.T, collection_uuid string) {
+func deleteCollection(t *testing.T, uuid string) {
 	getback := make(Dict)
-	err := arv.Delete("collections", collection_uuid, nil, &getback)
+	err := arv.Delete("collections", uuid, nil, &getback)
 	if err != nil {
 		t.Fatalf("Error deleting collection %s", err)
 	}
-	if getback["uuid"] != collection_uuid {
-		t.Fatalf("Delete collection uuid did not match original: $s, result: $s", collection_uuid, getback["uuid"])
+	if getback["uuid"] != uuid {
+		t.Fatalf("Delete collection uuid did not match original: $s, result: $s", uuid, getback["uuid"])
 	}
 }
 
-func DataManagerSingleRun(t *testing.T) {
+func dataManagerSingleRun(t *testing.T) {
 	err := singlerun()
 	if err != nil {
 		t.Fatalf("Error during singlerun %s", err)
 	}
 }
 
-func MakeRequest(t *testing.T, path string) string {
+func getBlockIndexesForServer(t *testing.T, i int) []string {
+	var indexes []string
+
+	path := keepServers[i] + "/index"
 	client := http.Client{}
-	req, err := http.NewRequest("GET", path, strings.NewReader("resp"))
+	req, err := http.NewRequest("GET", path, nil)
 	req.Header.Add("Authorization", "OAuth2 "+keep.GetDataManagerToken(nil))
 	req.Header.Add("Content-Type", "application/octet-stream")
-	//	resp, err := client.Do(req)
 	resp, err := client.Do(req)
+	defer resp.Body.Close()
+
 	if err != nil {
 		t.Fatalf("Error during %s %s", path, err)
 	}
@@ -162,112 +190,299 @@ func MakeRequest(t *testing.T, path string) string {
 		t.Fatalf("Error reading response from %s %s", path, err)
 	}
 
-	return string(body)
+	lines := strings.Split(string(body), "\n")
+	for _, line := range lines {
+		indexes = append(indexes, strings.Split(line, " ")...)
+	}
+
+	return indexes
 }
 
-func GetBlockIndexes(t *testing.T) []string {
-	var indexes []string
+func getBlockIndexes(t *testing.T) [][]string {
+	var indexes [][]string
 
 	for i := 0; i < len(keepServers); i++ {
-		resp := MakeRequest(t, keepServers[i]+"/index")
-		lines := strings.Split(resp, "\n")
-		for _, line := range lines {
-			indexes = append(indexes, strings.Split(line, " ")...)
-		}
+		indexes = append(indexes, getBlockIndexesForServer(t, i))
 	}
-
 	return indexes
 }
 
-func VerifyBlocks(t *testing.T, not_expected []string, expected []string) {
-	blocks := GetBlockIndexes(t)
-	for _, block := range not_expected {
-		exists := ValueInArray(block, blocks)
-		if exists {
-			t.Fatalf("Found unexpected block in index %s", block)
+func verifyBlocks(t *testing.T, notExpected []string, expected []string) {
+	blocks := getBlockIndexes(t)
+	for _, block := range notExpected {
+		for i := 0; i < len(blocks); i++ {
+			exists := valueInArray(block, blocks[i])
+			if exists {
+				t.Fatalf("Found unexpected block in index %s", block)
+			}
 		}
 	}
+
+	//	var blockExists [][]string
+	blockExists := make(map[string][]string)
+	for _, block := range expected {
+		var blockArray []string
+		for i := 0; i < len(blocks); i++ {
+			exists := valueInArray(block, blocks[i])
+			if exists {
+				blockArray = append(blockArray, block)
+			}
+		}
+		blockExists[block] = blockArray
+	}
+
 	for _, block := range expected {
-		exists := ValueInArray(block, blocks)
-		if !exists {
-			t.Fatalf("Did not find expected block in index %s", block)
+		if blockExists[block] == nil || len(blockExists[block]) != 2 {
+			t.Fatalf("Expected to find two replicas for block %s; found %d", block, len(blockExists[block]))
 		}
 	}
 }
 
-func ValueInArray(value string, list []string) bool {
+func valueInArray(value string, list []string) bool {
 	for _, v := range list {
-		if strings.HasPrefix(v, value) {
+		if value == v {
 			return true
 		}
 	}
 	return false
 }
 
+/*
+Test env uses two keep volumes. The volume names can be found by reading the files
+  ARVADOS_HOME/tmp/keep0.volume and ARVADOS_HOME/tmp/keep1.volume
+
+The keep volumes are of the dir structure:
+  volumeN/subdir/locator
+*/
+func backdateBlocks(t *testing.T, oldUnusedBlockLocators []string) {
+	// First get rid of any size hints in the locators
+	var trimmedBlockLocators []string
+	for _, block := range oldUnusedBlockLocators {
+		trimmedBlockLocators = append(trimmedBlockLocators, strings.Split(block, "+")[0])
+	}
+
+	// Get the working dir so that we can read keep{n}.volume files
+	wd, err := os.Getwd()
+	if err != nil {
+		t.Fatalf("Error getting working dir %s", err)
+	}
+
+	// Now cycle through the two keep volumes
+	oldTime := time.Now().AddDate(0, -2, 0)
+	for i := 0; i < 2; i++ {
+		filename := fmt.Sprintf("%s/../../tmp/keep%d.volume", wd, i)
+		volumeDir, err := ioutil.ReadFile(filename)
+		if err != nil {
+			t.Fatalf("Error reading keep volume file %s %s", filename, err)
+		}
+
+		// Read the keep volume dir structure
+		volumeContents, err := ioutil.ReadDir(string(volumeDir))
+		if err != nil {
+			t.Fatalf("Error reading keep dir %s %s", string(volumeDir), err)
+		}
+
+		// Read each subdir for each of the keep volume dir
+		for _, subdir := range volumeContents {
+			subdirName := fmt.Sprintf("%s/%s", volumeDir, subdir.Name())
+			subdirContents, err := ioutil.ReadDir(string(subdirName))
+			if err != nil {
+				t.Fatalf("Error reading keep dir %s %s", string(subdirName), err)
+			}
+
+			// Now we got to the files. The files are names are the block locators
+			for _, fileInfo := range subdirContents {
+				blockName := fileInfo.Name()
+				myname := fmt.Sprintf("%s/%s", subdirName, blockName)
+				if valueInArray(blockName, trimmedBlockLocators) {
+					err = os.Chtimes(myname, oldTime, oldTime)
+				}
+			}
+		}
+	}
+}
+
+func getStatus(t *testing.T, path string) interface{} {
+	client := http.Client{}
+	req, err := http.NewRequest("GET", path, nil)
+	req.Header.Add("Authorization", "OAuth2 "+keep.GetDataManagerToken(nil))
+	req.Header.Add("Content-Type", "application/octet-stream")
+	resp, err := client.Do(req)
+	defer resp.Body.Close()
+
+	if err != nil {
+		t.Fatalf("Error during %s %s", path, err)
+	}
+
+	var s interface{}
+	json.NewDecoder(resp.Body).Decode(&s)
+
+	return s
+}
+
+func waitUntilQueuesFinishWork(t *testing.T) {
+	// Wait until PullQueue and TrashQueue finish their work
+	for {
+		var done [2]bool
+		for i := 0; i < 2; i++ {
+			s := getStatus(t, keepServers[i]+"/status.json")
+			var pullQueueStatus interface{}
+			pullQueueStatus = s.(map[string]interface{})["PullQueue"]
+			var trashQueueStatus interface{}
+			trashQueueStatus = s.(map[string]interface{})["TrashQueue"]
+
+			if pullQueueStatus.(map[string]interface{})["Queued"] == float64(0) &&
+				pullQueueStatus.(map[string]interface{})["InProgress"] == float64(0) &&
+				trashQueueStatus.(map[string]interface{})["Queued"] == float64(0) &&
+				trashQueueStatus.(map[string]interface{})["InProgress"] == float64(0) {
+				done[i] = true
+			}
+		}
+		if done[0] && done[1] {
+			break
+		} else {
+			time.Sleep(100 * time.Millisecond)
+		}
+	}
+}
+
+/*
+Create some blocks and backdate some of them.
+Also create some collections and delete some of them.
+Verify block indexes.
+*/
 func TestPutAndGetBlocks(t *testing.T) {
 	log.Print("TestPutAndGetBlocks start")
 	defer TearDownDataManagerTest(t)
 	SetupDataManagerTest(t)
 
-	// Put some blocks and change their mtime to old
-	var oldBlockLocators []string
-	oldBlockData := "this block will have older mtime"
-	for i := 0; i < 2; i++ {
-		oldBlockLocators = append(oldBlockLocators, PutBlock(t, oldBlockData+string(i)))
+	// Put some blocks which will be backdated later on
+	// The first one will also be used in a collection and hence should not be deleted when datamanager runs.
+	// The rest will be old and unreferenced and hence should be deleted when datamanager runs.
+	var oldUnusedBlockLocators []string
+	oldUnusedBlockData := "this block will have older mtime"
+	for i := 0; i < 5; i++ {
+		oldUnusedBlockLocators = append(oldUnusedBlockLocators, putBlock(t, fmt.Sprintf("%s%d", oldUnusedBlockData, i)))
 	}
-	for i := 0; i < 2; i++ {
-		GetBlock(t, oldBlockLocators[i], oldBlockData+string(i))
+	for i := 0; i < 5; i++ {
+		getBlock(t, oldUnusedBlockLocators[i], fmt.Sprintf("%s%d", oldUnusedBlockData, i))
 	}
 
-	// Put some more new blocks
+	// The rest will be old and unreferenced and hence should be deleted when datamanager runs.
+	oldUsedBlockData := "this collection block will have older mtime"
+	oldUsedBlockLocator := putBlock(t, oldUsedBlockData)
+	getBlock(t, oldUsedBlockLocator, oldUsedBlockData)
+
+	// Put some more blocks which will not be backdated; hence they are still new, but not in any collection.
+	// Hence, even though unreferenced, these should not be deleted when datamanager runs.
 	var newBlockLocators []string
 	newBlockData := "this block is newer"
-	for i := 0; i < 1; i++ {
-		newBlockLocators = append(newBlockLocators, PutBlock(t, newBlockData+string(i)))
+	for i := 0; i < 5; i++ {
+		newBlockLocators = append(newBlockLocators, putBlock(t, fmt.Sprintf("%s%d", newBlockData, i)))
 	}
-	for i := 0; i < 1; i++ {
-		GetBlock(t, newBlockLocators[i], newBlockData+string(i))
+	for i := 0; i < 5; i++ {
+		getBlock(t, newBlockLocators[i], fmt.Sprintf("%s%d", newBlockData, i))
+	}
+
+	// Create a collection that would be deleted later on
+	toBeDeletedCollectionUuid := createCollection(t, "some data for collection creation")
+	toBeDeletedCollectionLocator := getCollectionLocator(t, toBeDeletedCollectionUuid)
+
+	// Create another collection that has the same data as the one of the old blocks
+	oldUsedBlockCollectionUuid := createCollection(t, oldUsedBlockData)
+	oldUsedBlockCollectionLocator := getCollectionLocator(t, oldUsedBlockCollectionUuid)
+	if oldUsedBlockCollectionLocator != oldUsedBlockLocator {
+		t.Fatalf("Locator of the collection with the same data as old block is different %s", oldUsedBlockCollectionLocator)
+	}
+
+	// Create another collection whose replication level will be changed
+	replicationCollectionUuid := createCollection(t, "replication level on this collection will be reduced")
+	replicationCollectionLocator := getCollectionLocator(t, replicationCollectionUuid)
+
+	// Create two collections with same data; one will be deleted later on
+	dataForTwoCollections := "one of these collections will be deleted"
+	oneOfTwoWithSameDataUuid := createCollection(t, dataForTwoCollections)
+	oneOfTwoWithSameDataLocator := getCollectionLocator(t, oneOfTwoWithSameDataUuid)
+	secondOfTwoWithSameDataUuid := createCollection(t, dataForTwoCollections)
+	secondOfTwoWithSameDataLocator := getCollectionLocator(t, secondOfTwoWithSameDataUuid)
+	if oneOfTwoWithSameDataLocator != secondOfTwoWithSameDataLocator {
+		t.Fatalf("Locators for both these collections expected to be same: %s %s", oneOfTwoWithSameDataLocator, secondOfTwoWithSameDataLocator)
 	}
 
-	// Create a collection
-	collection_uuid := CreateCollection(t, "some data for collection creation")
+	// Verify blocks before doing any backdating / deleting.
+	var expected []string
+	expected = append(expected, oldUnusedBlockLocators...)
+	expected = append(expected, newBlockLocators...)
+	expected = append(expected, toBeDeletedCollectionLocator)
+	expected = append(expected, replicationCollectionLocator)
+	expected = append(expected, oneOfTwoWithSameDataLocator)
+	expected = append(expected, secondOfTwoWithSameDataLocator)
 
-	collection_locator := GetCollection(t, collection_uuid)
+	verifyBlocks(t, nil, expected)
 
-	/*
-	  // Invoking datamanager singlerun or /index several times is resulting in errors
-	  // Hence, for now just invoke once at the end of test
-		     var expected []string
-		     expected = append(expected, oldBlockLocators...)
-		     expected = append(expected, newBlockLocators...)
-		     expected = append(expected, collection_locator)
+	// Run datamanager in singlerun mode
+	dataManagerSingleRun(t)
+	waitUntilQueuesFinishWork(t)
 
-		   	VerifyBlocks(t, nil, expected)
+	verifyBlocks(t, nil, expected)
 
-		   	// Run datamanager in singlerun mode
-		   	DataManagerSingleRun(t)
-	*/
+	// Backdate the to-be old blocks and delete the collections
+	backdateBlocks(t, oldUnusedBlockLocators)
+	deleteCollection(t, toBeDeletedCollectionUuid)
+	deleteCollection(t, secondOfTwoWithSameDataUuid)
 
-	// Change mtime on old blocks and delete the collection
-	DeleteCollection(t, collection_uuid)
+	// Run data manager again
+	dataManagerSingleRun(t)
+	waitUntilQueuesFinishWork(t)
 
-	time.Sleep(1 * time.Second)
-	DataManagerSingleRun(t)
+	// Get block indexes and verify that all backdated blocks except the first one used in collection are not included.
+	expected = expected[:0]
+	expected = append(expected, oldUsedBlockLocator)
+	expected = append(expected, newBlockLocators...)
+	expected = append(expected, toBeDeletedCollectionLocator)
+	expected = append(expected, replicationCollectionLocator)
+	expected = append(expected, oneOfTwoWithSameDataLocator)
+	expected = append(expected, secondOfTwoWithSameDataLocator)
 
-	// Give some time for pull worker and trash worker to finish
-	time.Sleep(10 * time.Second)
+	verifyBlocks(t, oldUnusedBlockLocators, expected)
 
-	// Get block indexes and verify that the deleted collection block is no longer found
-	var not_expected []string
-	not_expected = append(not_expected, oldBlockLocators...)
-	not_expected = append(not_expected, collection_locator)
-	//VerifyBlocks(t, not_expected, newBlockLocators)
-	VerifyBlocks(t, nil, newBlockLocators)
+	// Reduce replication on replicationCollectionUuid collection and verify that the overreplicated blocks are untouched.
+
+	// Default replication level is 2; first verify that the replicationCollectionLocator appears in both volumes
+	for i := 0; i < len(keepServers); i++ {
+		indexes := getBlockIndexesForServer(t, i)
+		if !valueInArray(replicationCollectionLocator, indexes) {
+			t.Fatalf("Not found block in index %s", replicationCollectionLocator)
+		}
+	}
+
+	// Now reduce replication level on this collection and verify that it still appears in both volumes
+	updateCollection(t, replicationCollectionUuid, "replication_desired", "1")
+	collection := getCollection(t, replicationCollectionUuid)
+	if collection["replication_desired"].(interface{}) != float64(1) {
+		t.Fatalf("After update replication_desired is not 1; instead it is %v", collection["replication_desired"])
+	}
+
+	// Run data manager again
+	time.Sleep(100 * time.Millisecond)
+	dataManagerSingleRun(t)
+	waitUntilQueuesFinishWork(t)
+
+	for i := 0; i < len(keepServers); i++ {
+		indexes := getBlockIndexesForServer(t, i)
+		if !valueInArray(replicationCollectionLocator, indexes) {
+			t.Fatalf("Not found block in index %s", replicationCollectionLocator)
+		}
+	}
+	// Done testing reduce replication on collection
+
+	// Verify blocks one more time
+	verifyBlocks(t, oldUnusedBlockLocators, expected)
 }
 
-// Invoking datamanager singlerun several times results in errors.
-// Until that issue is resolved, don't run this test in the meantime.
-func x_TestInvokeDatamanagerSingleRunRepeatedly(t *testing.T) {
+func _TestDatamanagerSingleRunRepeatedly(t *testing.T) {
+	log.Print("TestDatamanagerSingleRunRepeatedly start")
+
 	defer TearDownDataManagerTest(t)
 	SetupDataManagerTest(t)
 
@@ -276,6 +491,33 @@ func x_TestInvokeDatamanagerSingleRunRepeatedly(t *testing.T) {
 		if err != nil {
 			t.Fatalf("Got an error during datamanager singlerun: %v", err)
 		}
-		time.Sleep(1 * time.Second)
+		time.Sleep(100 * time.Millisecond)
+	}
+}
+
+func _TestGetStatusRepeatedly(t *testing.T) {
+	log.Print("TestGetStatusRepeatedly start")
+
+	defer TearDownDataManagerTest(t)
+	SetupDataManagerTest(t)
+
+	for i := 0; i < 10; i++ {
+		for j := 0; j < 2; j++ {
+			s := getStatus(t, keepServers[j]+"/status.json")
+
+			var pullQueueStatus interface{}
+			pullQueueStatus = s.(map[string]interface{})["PullQueue"]
+			var trashQueueStatus interface{}
+			trashQueueStatus = s.(map[string]interface{})["TrashQueue"]
+
+			if pullQueueStatus.(map[string]interface{})["Queued"] == nil ||
+				pullQueueStatus.(map[string]interface{})["InProgress"] == nil ||
+				trashQueueStatus.(map[string]interface{})["Queued"] == nil ||
+				trashQueueStatus.(map[string]interface{})["InProgress"] == nil {
+				t.Fatalf("PullQueue and TrashQueue status not found")
+			}
+
+			time.Sleep(100 * time.Millisecond)
+		}
 	}
 }