6260: TestPutAndGetBlocks is working.
[arvados.git] / services / datamanager / datamanager_test.go
index 492d402b8fcf27b872fba32a5f70743d120b1d8d..4dc940e5a2ac2ab1404e97d95954e4d02f95dfe6 100644 (file)
@@ -7,7 +7,6 @@ import (
        "git.curoverse.com/arvados.git/sdk/go/arvadostest"
        "git.curoverse.com/arvados.git/sdk/go/keepclient"
        "git.curoverse.com/arvados.git/services/datamanager/keep"
-       "io"
        "io/ioutil"
        "log"
        "net/http"
@@ -69,7 +68,8 @@ 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) {
@@ -113,7 +113,7 @@ func CreateCollection(t *testing.T, data string) string {
 // Get collection using arv-get
 var locatorMatcher = regexp.MustCompile(`^([0-9a-f]{32})\+(\d*)(.*)$`)
 
-func GetCollection(t *testing.T, uuid string) string {
+func GetCollectionManifest(t *testing.T, uuid string) string {
        output, err := exec.Command("arv-get", uuid).Output()
        if err != nil {
                t.Fatalf("Error during arv-get %s", err)
@@ -128,6 +128,31 @@ func GetCollection(t *testing.T, uuid string) string {
        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 getting collection %s", err)
+       }
+       if getback["uuid"] != uuid {
+               t.Fatalf("Get collection uuid did not match original: $s, result: $s", uuid, getback["uuid"])
+       }
+
+       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)
+       }
+}
+
 type Dict map[string]interface{}
 
 func DeleteCollection(t *testing.T, uuid string) {
@@ -148,9 +173,12 @@ func DataManagerSingleRun(t *testing.T) {
        }
 }
 
-func MakeRequest(t *testing.T, path string) io.Reader {
+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)
@@ -160,42 +188,31 @@ func MakeRequest(t *testing.T, path string) io.Reader {
                t.Fatalf("Error during %s %s", path, err)
        }
 
-       return resp.Body
+       body, err := ioutil.ReadAll(resp.Body)
+       if err != nil {
+               t.Fatalf("Error reading response from %s %s", path, err)
+       }
+
+       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
 
        for i := 0; i < len(keepServers); i++ {
-               path := keepServers[i] + "/index"
-               client := http.Client{}
-               req, err := http.NewRequest("GET", path, strings.NewReader("resp"))
-               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)
-               }
-
-               body, err := ioutil.ReadAll(resp.Body)
-               if err != nil {
-                       t.Fatalf("Error reading response from %s %s", path, err)
-               }
-
-               lines := strings.Split(string(body), "\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) {
+func VerifyBlocks(t *testing.T, notExpected []string, expected []string) {
        blocks := GetBlockIndexes(t)
-       for _, block := range not_expected {
+       for _, block := range notExpected {
                exists := ValueInArray(block, blocks)
                if exists {
                        t.Fatalf("Found unexpected block in index %s", block)
@@ -239,7 +256,7 @@ func BackdateBlocks(t *testing.T, oldBlockLocators []string) {
        }
 
        // Now cycle through the two keep volumes
-       oldTime := time.Now().AddDate(0, -1, 0)
+       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)
@@ -275,7 +292,7 @@ func BackdateBlocks(t *testing.T, oldBlockLocators []string) {
 
 func GetStatus(t *testing.T, path string) interface{} {
        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)
@@ -291,97 +308,171 @@ func GetStatus(t *testing.T, path string) interface{} {
        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(1 * time.Second)
+               }
+       }
+}
+
+/*
+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 before ttl
+       // 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 oldBlockLocators []string
        oldBlockData := "this block will have older mtime"
-       for i := 0; i < 2; i++ {
-               oldBlockLocators = append(oldBlockLocators, PutBlock(t, oldBlockData+string(i)))
+       for i := 0; i < 5; i++ {
+               oldBlockLocators = append(oldBlockLocators, PutBlock(t, fmt.Sprintf("%s%d", oldBlockData, i)))
        }
-       for i := 0; i < 2; i++ {
-               GetBlock(t, oldBlockLocators[i], oldBlockData+string(i))
+       for i := 0; i < 5; i++ {
+               GetBlock(t, oldBlockLocators[i], fmt.Sprintf("%s%d", oldBlockData, i))
        }
 
-       // Put some more blocks whose mtime won't be changed
+       // 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
-       to_delete_collection_uuid := CreateCollection(t, "some data for collection creation")
-       to_delete_collection_locator := GetCollection(t, to_delete_collection_uuid)
+       // Create a collection that would be deleted later on
+       toBeDeletedCollectionUuid := CreateCollection(t, "some data for collection creation")
+       toBeDeletedCollectionLocator := GetCollectionManifest(t, toBeDeletedCollectionUuid)
 
        // Create another collection that has the same data as the one of the old blocks
-       old_block_collection_uuid := CreateCollection(t, "this block will have older mtime0")
-       old_block_collection_locator := GetCollection(t, old_block_collection_uuid)
-       exists := ValueInArray(strings.Split(old_block_collection_locator, "+")[0], oldBlockLocators)
+       oldBlockCollectionUuid := CreateCollection(t, "this block will have older mtime0")
+       oldBlockCollectionLocator := GetCollectionManifest(t, oldBlockCollectionUuid)
+       exists := ValueInArray(strings.Split(oldBlockCollectionLocator, "+")[0], oldBlockLocators)
        if exists {
-               t.Fatalf("Locator of the collection with the same data as old block is different %s", old_block_collection_locator)
+               t.Fatalf("Locator of the collection with the same data as old block is different %s", oldBlockCollectionLocator)
        }
 
-       // Invoking datamanager singlerun or /index several times is resulting in errors
-       // Hence, for now just invoke once at the end of test
+       // Create another collection whose replication level will be changed
+       replicationCollectionUuid := CreateCollection(t, "replication level on this collection will be reduced")
+       replicationCollectionLocator := GetCollectionManifest(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 := GetCollectionManifest(t, oneOfTwoWithSameDataUuid)
+       secondOfTwoWithSameDataUuid := CreateCollection(t, dataForTwoCollections)
+       secondOfTwoWithSameDataLocator := GetCollectionManifest(t, secondOfTwoWithSameDataUuid)
+       if oneOfTwoWithSameDataLocator != secondOfTwoWithSameDataLocator {
+               t.Fatalf("Locators for both these collections expected to be same: %s %s", oneOfTwoWithSameDataLocator, secondOfTwoWithSameDataLocator)
+       }
 
+       // Verify blocks before doing any backdating / deleting.
        var expected []string
        expected = append(expected, oldBlockLocators...)
        expected = append(expected, newBlockLocators...)
-       expected = append(expected, to_delete_collection_locator)
+       expected = append(expected, toBeDeletedCollectionLocator)
+       expected = append(expected, replicationCollectionLocator)
+       expected = append(expected, oneOfTwoWithSameDataLocator)
+       expected = append(expected, secondOfTwoWithSameDataLocator)
 
        VerifyBlocks(t, nil, expected)
 
        // Run datamanager in singlerun mode
        DataManagerSingleRun(t)
+       WaitUntilQueuesFinishWork(t)
+
+       log.Print("Backdating blocks and deleting collection now")
 
-       // Change mtime on old blocks and delete the collection
-       DeleteCollection(t, to_delete_collection_uuid)
+       // Backdate the to-be old blocks and delete the collections
        BackdateBlocks(t, oldBlockLocators)
+       DeleteCollection(t, toBeDeletedCollectionUuid)
+       DeleteCollection(t, secondOfTwoWithSameDataUuid)
 
-       // Run data manager
+       // Run data manager again
        time.Sleep(1 * time.Second)
        DataManagerSingleRun(t)
+       WaitUntilQueuesFinishWork(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
-                       }
+       // Get block indexes and verify that all backdated blocks except the first one are not included.
+       // The first block was also used in a collection that is not deleted and hence should remain.
+       var notExpected []string
+       notExpected = append(notExpected, oldBlockLocators[1:]...)
+
+       expected = expected[:0]
+       expected = append(expected, oldBlockLocators[0])
+       expected = append(expected, newBlockLocators...)
+       expected = append(expected, toBeDeletedCollectionLocator)
+       expected = append(expected, replicationCollectionLocator)
+       expected = append(expected, oneOfTwoWithSameDataLocator)
+       expected = append(expected, secondOfTwoWithSameDataLocator)
+
+       VerifyBlocks(t, notExpected, expected)
+
+       // 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)
                }
-               if done[0] && done[1] {
-                       break
-               } else {
-                       time.Sleep(1 * time.Second)
+       }
+
+       // 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(1 * time.Second)
+       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)
                }
        }
 
-       // 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, to_delete_collection_locator)
-       VerifyBlocks(t, not_expected, newBlockLocators)
+       // Done testing reduce replication on collection
+
+       // Verify blocks one more time
+       VerifyBlocks(t, notExpected, expected)
 }
 
-// Invoking datamanager singlerun several times resulting 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)
 
@@ -393,3 +484,30 @@ func x_TestInvokeDatamanagerSingleRunRepeatedly(t *testing.T) {
                time.Sleep(1 * time.Second)
        }
 }
+
+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(1 * time.Second)
+               }
+       }
+}