X-Git-Url: https://git.arvados.org/arvados.git/blobdiff_plain/4d0e87db2bef1f30634d28338e89227b985e6485..f9e3d32c92920a806d50548dbb9b6c0aab7d8c54:/services/datamanager/keep/keep.go diff --git a/services/datamanager/keep/keep.go b/services/datamanager/keep/keep.go index 912fcf5359..e7843ea02f 100644 --- a/services/datamanager/keep/keep.go +++ b/services/datamanager/keep/keep.go @@ -5,166 +5,162 @@ package keep import ( "bufio" "encoding/json" + "errors" "flag" "fmt" "git.curoverse.com/arvados.git/sdk/go/arvadosclient" "git.curoverse.com/arvados.git/sdk/go/blockdigest" + "git.curoverse.com/arvados.git/sdk/go/keepclient" "git.curoverse.com/arvados.git/sdk/go/logger" - "git.curoverse.com/arvados.git/sdk/go/manifest" - "git.curoverse.com/arvados.git/services/datamanager/loggerutil" "io" "io/ioutil" "log" "net/http" "strconv" "strings" - "sync" "time" ) +// ServerAddress struct type ServerAddress struct { - Host string `json:"service_host"` - Port int `json:"service_port"` - Uuid string `json:"uuid"` + SSL bool `json:"service_ssl_flag"` + Host string `json:"service_host"` + Port int `json:"service_port"` + UUID string `json:"uuid"` + ServiceType string `json:"service_type"` } -// Info about a particular block returned by the server +// BlockInfo is info about a particular block returned by the server type BlockInfo struct { - Digest blockdigest.BlockDigest - Size int + Digest blockdigest.DigestWithSize Mtime int64 // TODO(misha): Replace this with a timestamp. } -// Info about a specified block given by a server +// BlockServerInfo is info about a specified block given by a server type BlockServerInfo struct { ServerIndex int - Size int Mtime int64 // TODO(misha): Replace this with a timestamp. } +// ServerContents struct type ServerContents struct { - BlockDigestToInfo map[blockdigest.BlockDigest]BlockInfo + BlockDigestToInfo map[blockdigest.DigestWithSize]BlockInfo } +// ServerResponse struct type ServerResponse struct { Address ServerAddress Contents ServerContents + Err error } +// ReadServers struct type ReadServers struct { ReadAllServers bool KeepServerIndexToAddress []ServerAddress KeepServerAddressToIndex map[ServerAddress]int ServerToContents map[ServerAddress]ServerContents - BlockToServers map[blockdigest.BlockDigest][]BlockServerInfo + BlockToServers map[blockdigest.DigestWithSize][]BlockServerInfo BlockReplicationCounts map[int]int } +// GetKeepServersParams struct type GetKeepServersParams struct { Client arvadosclient.ArvadosClient Logger *logger.Logger Limit int } -type KeepServiceList struct { +// ServiceList consists of the addresses of all the available kee servers +type ServiceList struct { ItemsAvailable int `json:"items_available"` KeepServers []ServerAddress `json:"items"` } -var ( - // Don't access the token directly, use getDataManagerToken() to - // make sure it's been read. - dataManagerToken string - dataManagerTokenFile string - dataManagerTokenFileReadOnce sync.Once -) +var serviceType string func init() { - flag.StringVar(&dataManagerTokenFile, - "data-manager-token-file", - "", - "File with the API token we should use to contact keep servers.") + flag.StringVar(&serviceType, + "service-type", + "disk", + "Operate only on keep_services with the specified service_type, ignoring all others.") } +// String // TODO(misha): Change this to include the UUID as well. func (s ServerAddress) String() string { - return fmt.Sprintf("%s:%d", s.Host, s.Port) + return s.URL() } -func getDataManagerToken(arvLogger *logger.Logger) string { - readDataManagerToken := func() { - if dataManagerTokenFile == "" { - flag.Usage() - loggerutil.FatalWithMessage(arvLogger, - "Data Manager Token needed, but data manager token file not specified.") - } else { - rawRead, err := ioutil.ReadFile(dataManagerTokenFile) - if err != nil { - loggerutil.FatalWithMessage(arvLogger, - fmt.Sprintf("Unexpected error reading token file %s: %v", - dataManagerTokenFile, - err)) - } - dataManagerToken = strings.TrimSpace(string(rawRead)) - } +// URL of the keep server +func (s ServerAddress) URL() string { + if s.SSL { + return fmt.Sprintf("https://%s:%d", s.Host, s.Port) } - - dataManagerTokenFileReadOnce.Do(readDataManagerToken) - return dataManagerToken + return fmt.Sprintf("http://%s:%d", s.Host, s.Port) } -func GetKeepServersAndSummarize(params GetKeepServersParams) (results ReadServers) { - results = GetKeepServers(params) +// GetKeepServersAndSummarize gets keep servers from api +func GetKeepServersAndSummarize(params GetKeepServersParams) (results ReadServers, err error) { + results, err = GetKeepServers(params) + if err != nil { + return + } log.Printf("Returned %d keep disks", len(results.ServerToContents)) - ComputeBlockReplicationCounts(&results) + results.Summarize(params.Logger) log.Printf("Replication level distribution: %v", results.BlockReplicationCounts) return } -func GetKeepServers(params GetKeepServersParams) (results ReadServers) { - if ¶ms.Client == nil { - log.Fatalf("params.Client passed to GetKeepServers() should " + - "contain a valid ArvadosClient, but instead it is nil.") - } - +// GetKeepServers from api server +func GetKeepServers(params GetKeepServersParams) (results ReadServers, err error) { sdkParams := arvadosclient.Dict{ - "filters": [][]string{[]string{"service_type", "=", "disk"}}, + "filters": [][]string{{"service_type", "!=", "proxy"}}, } if params.Limit > 0 { sdkParams["limit"] = params.Limit } - var sdkResponse KeepServiceList - err := params.Client.List("keep_services", sdkParams, &sdkResponse) + var sdkResponse ServiceList + err = params.Client.List("keep_services", sdkParams, &sdkResponse) if err != nil { - loggerutil.FatalWithMessage(params.Logger, - fmt.Sprintf("Error requesting keep disks from API server: %v", err)) + return + } + + var keepServers []ServerAddress + for _, server := range sdkResponse.KeepServers { + if server.ServiceType == serviceType { + keepServers = append(keepServers, server) + } else { + log.Printf("Skipping keep_service %q because its service_type %q does not match -service-type=%q", server, server.ServiceType, serviceType) + } + } + + if len(keepServers) == 0 { + return results, fmt.Errorf("Found no keepservices with the service type %v", serviceType) } if params.Logger != nil { params.Logger.Update(func(p map[string]interface{}, e map[string]interface{}) { - keepInfo := make(map[string]interface{}) - + keepInfo := logger.GetOrCreateMap(p, "keep_info") keepInfo["num_keep_servers_available"] = sdkResponse.ItemsAvailable keepInfo["num_keep_servers_received"] = len(sdkResponse.KeepServers) keepInfo["keep_servers"] = sdkResponse.KeepServers - - p["keep_info"] = keepInfo + keepInfo["indexable_keep_servers"] = keepServers }) } log.Printf("Received keep services list: %+v", sdkResponse) if len(sdkResponse.KeepServers) < sdkResponse.ItemsAvailable { - loggerutil.FatalWithMessage(params.Logger, - fmt.Sprintf("Did not receive all available keep servers: %+v", sdkResponse)) + return results, fmt.Errorf("Did not receive all available keep servers: %+v", sdkResponse) } - results.KeepServerIndexToAddress = sdkResponse.KeepServers + results.KeepServerIndexToAddress = keepServers results.KeepServerAddressToIndex = make(map[ServerAddress]int) for i, address := range results.KeepServerIndexToAddress { results.KeepServerAddressToIndex[address] = i @@ -172,12 +168,9 @@ func GetKeepServers(params GetKeepServersParams) (results ReadServers) { log.Printf("Got Server Addresses: %v", results) - // This is safe for concurrent use - client := http.Client{} - // Send off all the index requests concurrently responseChan := make(chan ServerResponse) - for _, keepServer := range sdkResponse.KeepServers { + for _, keepServer := range results.KeepServerIndexToAddress { // The above keepsServer variable is reused for each iteration, so // it would be shared across all goroutines. This would result in // us querying one server n times instead of n different servers @@ -187,17 +180,23 @@ func GetKeepServers(params GetKeepServersParams) (results ReadServers) { go func(keepServer ServerAddress) { responseChan <- GetServerContents(params.Logger, keepServer, - client) + params.Client) }(keepServer) } results.ServerToContents = make(map[ServerAddress]ServerContents) - results.BlockToServers = make(map[blockdigest.BlockDigest][]BlockServerInfo) + results.BlockToServers = make(map[blockdigest.DigestWithSize][]BlockServerInfo) // Read all the responses - for i := range sdkResponse.KeepServers { + for i := range results.KeepServerIndexToAddress { _ = i // Here to prevent go from complaining. response := <-responseChan + + // Check if there were any errors during GetServerContents + if response.Err != nil { + return results, response.Err + } + log.Printf("Received channel response from %v containing %d files", response.Address, len(response.Contents.BlockDigestToInfo)) @@ -207,32 +206,48 @@ func GetKeepServers(params GetKeepServersParams) (results ReadServers) { results.BlockToServers[blockInfo.Digest] = append( results.BlockToServers[blockInfo.Digest], BlockServerInfo{ServerIndex: serverIndex, - Size: blockInfo.Size, Mtime: blockInfo.Mtime}) } } return } +// GetServerContents of the keep server func GetServerContents(arvLogger *logger.Logger, keepServer ServerAddress, - client http.Client) (response ServerResponse) { + arv arvadosclient.ArvadosClient) (response ServerResponse) { - GetServerStatus(arvLogger, keepServer, client) + err := GetServerStatus(arvLogger, keepServer, arv) + if err != nil { + response.Err = err + return + } + + req, err := CreateIndexRequest(arvLogger, keepServer, arv) + if err != nil { + response.Err = err + return + } + + resp, err := arv.Client.Do(req) + if err != nil { + response.Err = err + return + } - req := CreateIndexRequest(arvLogger, keepServer) - resp, err := client.Do(req) + response, err = ReadServerResponse(arvLogger, keepServer, resp) if err != nil { - loggerutil.FatalWithMessage(arvLogger, - fmt.Sprintf("Error fetching %s: %v", req.URL.String(), err)) + response.Err = err + return } - return ReadServerResponse(arvLogger, keepServer, resp) + return } +// GetServerStatus get keep server status by invoking /status.json func GetServerStatus(arvLogger *logger.Logger, keepServer ServerAddress, - client http.Client) { + arv arvadosclient.ArvadosClient) error { url := fmt.Sprintf("http://%s:%d/status.json", keepServer.Host, keepServer.Port) @@ -240,25 +255,23 @@ func GetServerStatus(arvLogger *logger.Logger, if arvLogger != nil { now := time.Now() arvLogger.Update(func(p map[string]interface{}, e map[string]interface{}) { - keepInfo := p["keep_info"].(map[string]interface{}) + keepInfo := logger.GetOrCreateMap(p, "keep_info") serverInfo := make(map[string]interface{}) serverInfo["status_request_sent_at"] = now serverInfo["host"] = keepServer.Host serverInfo["port"] = keepServer.Port - keepInfo[keepServer.Uuid] = serverInfo + keepInfo[keepServer.UUID] = serverInfo }) } - resp, err := client.Get(url) + resp, err := arv.Client.Get(url) if err != nil { - loggerutil.FatalWithMessage(arvLogger, - fmt.Sprintf("Error getting keep status from %s: %v", url, err)) + return fmt.Errorf("Error getting keep status from %s: %v", url, err) } else if resp.StatusCode != 200 { - loggerutil.FatalWithMessage(arvLogger, - fmt.Sprintf("Received error code %d in response to request "+ - "for %s status: %s", - resp.StatusCode, url, resp.Status)) + return fmt.Errorf("Received error code %d in response to request "+ + "for %s status: %s", + resp.StatusCode, url, resp.Status) } var keepStatus map[string]interface{} @@ -266,136 +279,106 @@ func GetServerStatus(arvLogger *logger.Logger, decoder.UseNumber() err = decoder.Decode(&keepStatus) if err != nil { - loggerutil.FatalWithMessage(arvLogger, - fmt.Sprintf("Error decoding keep status from %s: %v", url, err)) + return fmt.Errorf("Error decoding keep status from %s: %v", url, err) } if arvLogger != nil { now := time.Now() arvLogger.Update(func(p map[string]interface{}, e map[string]interface{}) { - keepInfo := p["keep_info"].(map[string]interface{}) - serverInfo := keepInfo[keepServer.Uuid].(map[string]interface{}) + keepInfo := logger.GetOrCreateMap(p, "keep_info") + serverInfo := keepInfo[keepServer.UUID].(map[string]interface{}) serverInfo["status_response_processed_at"] = now serverInfo["status"] = keepStatus }) } + + return nil } +// CreateIndexRequest to the keep server func CreateIndexRequest(arvLogger *logger.Logger, - keepServer ServerAddress) (req *http.Request) { + keepServer ServerAddress, + arv arvadosclient.ArvadosClient) (req *http.Request, err error) { url := fmt.Sprintf("http://%s:%d/index", keepServer.Host, keepServer.Port) log.Println("About to fetch keep server contents from " + url) if arvLogger != nil { now := time.Now() arvLogger.Update(func(p map[string]interface{}, e map[string]interface{}) { - keepInfo := p["keep_info"].(map[string]interface{}) - serverInfo := keepInfo[keepServer.Uuid].(map[string]interface{}) + keepInfo := logger.GetOrCreateMap(p, "keep_info") + serverInfo := keepInfo[keepServer.UUID].(map[string]interface{}) serverInfo["index_request_sent_at"] = now }) } - req, err := http.NewRequest("GET", url, nil) + req, err = http.NewRequest("GET", url, nil) if err != nil { - loggerutil.FatalWithMessage(arvLogger, - fmt.Sprintf("Error building http request for %s: %v", url, err)) + return req, fmt.Errorf("Error building http request for %s: %v", url, err) } - req.Header.Add("Authorization", - fmt.Sprintf("OAuth2 %s", getDataManagerToken(arvLogger))) - return + req.Header.Add("Authorization", "OAuth2 "+arv.ApiToken) + return req, err } +// ReadServerResponse reads reasponse from keep server func ReadServerResponse(arvLogger *logger.Logger, keepServer ServerAddress, - resp *http.Response) (response ServerResponse) { + resp *http.Response) (response ServerResponse, err error) { if resp.StatusCode != 200 { - loggerutil.FatalWithMessage(arvLogger, - fmt.Sprintf("Received error code %d in response to request "+ - "for %s index: %s", - resp.StatusCode, keepServer.String(), resp.Status)) + return response, fmt.Errorf("Received error code %d in response to index request for %s: %s", + resp.StatusCode, keepServer.String(), resp.Status) } if arvLogger != nil { now := time.Now() arvLogger.Update(func(p map[string]interface{}, e map[string]interface{}) { - keepInfo := p["keep_info"].(map[string]interface{}) - serverInfo := keepInfo[keepServer.Uuid].(map[string]interface{}) + keepInfo := logger.GetOrCreateMap(p, "keep_info") + serverInfo := keepInfo[keepServer.UUID].(map[string]interface{}) serverInfo["index_response_received_at"] = now }) } response.Address = keepServer response.Contents.BlockDigestToInfo = - make(map[blockdigest.BlockDigest]BlockInfo) + make(map[blockdigest.DigestWithSize]BlockInfo) reader := bufio.NewReader(resp.Body) numLines, numDuplicates, numSizeDisagreements := 0, 0, 0 for { numLines++ line, err := reader.ReadString('\n') if err == io.EOF { - loggerutil.FatalWithMessage(arvLogger, - fmt.Sprintf("Index from %s truncated at line %d", - keepServer.String(), numLines)) + return response, fmt.Errorf("Index from %s truncated at line %d", + keepServer.String(), numLines) } else if err != nil { - loggerutil.FatalWithMessage(arvLogger, - fmt.Sprintf("Error reading index response from %s at line %d: %v", - keepServer.String(), numLines, err)) + return response, fmt.Errorf("Error reading index response from %s at line %d: %v", + keepServer.String(), numLines, err) } if line == "\n" { if _, err := reader.Peek(1); err == nil { extra, _ := reader.ReadString('\n') - loggerutil.FatalWithMessage(arvLogger, - fmt.Sprintf("Index from %s had trailing data at line %d after EOF marker: %s", - keepServer.String(), numLines+1, extra)) + return response, fmt.Errorf("Index from %s had trailing data at line %d after EOF marker: %s", + keepServer.String(), numLines+1, extra) } else if err != io.EOF { - loggerutil.FatalWithMessage(arvLogger, - fmt.Sprintf("Index from %s had read error after EOF marker at line %d: %v", - keepServer.String(), numLines, err)) + return response, fmt.Errorf("Index from %s had read error after EOF marker at line %d: %v", + keepServer.String(), numLines, err) } numLines-- break } blockInfo, err := parseBlockInfoFromIndexLine(line) if err != nil { - loggerutil.FatalWithMessage(arvLogger, - fmt.Sprintf("Error parsing BlockInfo from index line "+ - "received from %s: %v", - keepServer.String(), - err)) + return response, fmt.Errorf("Error parsing BlockInfo from index line "+ + "received from %s: %v", + keepServer.String(), + err) } if storedBlock, ok := response.Contents.BlockDigestToInfo[blockInfo.Digest]; ok { // This server returned multiple lines containing the same block digest. - numDuplicates += 1 - if storedBlock.Size != blockInfo.Size { - numSizeDisagreements += 1 - // TODO(misha): Consider failing here. - message := fmt.Sprintf("Saw different sizes for the same block "+ - "on %s: %+v %+v", - keepServer.String(), - storedBlock, - blockInfo) - log.Println(message) - if arvLogger != nil { - arvLogger.Update(func(p map[string]interface{}, e map[string]interface{}) { - keepInfo := p["keep_info"].(map[string]interface{}) - serverInfo := keepInfo[keepServer.Uuid].(map[string]interface{}) - var error_list []string - read_error_list, has_list := serverInfo["error_list"] - if has_list { - error_list = read_error_list.([]string) - } // If we didn't have the list, error_list is already an empty list - serverInfo["error_list"] = append(error_list, message) - }) - } - } - // Keep the block that is bigger, or the block that's newer in - // the case of a size tie. - if storedBlock.Size < blockInfo.Size || - (storedBlock.Size == blockInfo.Size && - storedBlock.Mtime < blockInfo.Mtime) { + numDuplicates++ + // Keep the block that's newer. + if storedBlock.Mtime < blockInfo.Mtime { response.Contents.BlockDigestToInfo[blockInfo.Digest] = blockInfo } } else { @@ -413,8 +396,8 @@ func ReadServerResponse(arvLogger *logger.Logger, if arvLogger != nil { now := time.Now() arvLogger.Update(func(p map[string]interface{}, e map[string]interface{}) { - keepInfo := p["keep_info"].(map[string]interface{}) - serverInfo := keepInfo[keepServer.Uuid].(map[string]interface{}) + keepInfo := logger.GetOrCreateMap(p, "keep_info") + serverInfo := keepInfo[keepServer.UUID].(map[string]interface{}) serverInfo["processing_finished_at"] = now serverInfo["lines_received"] = numLines @@ -430,17 +413,19 @@ func parseBlockInfoFromIndexLine(indexLine string) (blockInfo BlockInfo, err err tokens := strings.Fields(indexLine) if len(tokens) != 2 { err = fmt.Errorf("Expected 2 tokens per line but received a "+ - "line containing %v instead.", + "line containing %#q instead.", tokens) } - var locator manifest.BlockLocator - if locator, err = manifest.ParseBlockLocator(tokens[0]); err != nil { + var locator blockdigest.BlockLocator + if locator, err = blockdigest.ParseBlockLocator(tokens[0]); err != nil { + err = fmt.Errorf("%v Received error while parsing line \"%#q\"", + err, indexLine) return } if len(locator.Hints) > 0 { err = fmt.Errorf("Block locator in index line should not contain hints "+ - "but it does: %v", + "but it does: %#q", locator) return } @@ -449,15 +434,108 @@ func parseBlockInfoFromIndexLine(indexLine string) (blockInfo BlockInfo, err err if err != nil { return } - blockInfo.Digest = locator.Digest - blockInfo.Size = locator.Size + blockInfo.Digest = + blockdigest.DigestWithSize{Digest: locator.Digest, + Size: uint32(locator.Size)} return } -func ComputeBlockReplicationCounts(readServers *ReadServers) { +// Summarize results from keep server +func (readServers *ReadServers) Summarize(arvLogger *logger.Logger) { readServers.BlockReplicationCounts = make(map[int]int) for _, infos := range readServers.BlockToServers { replication := len(infos) - readServers.BlockReplicationCounts[replication] += 1 + readServers.BlockReplicationCounts[replication]++ + } + + if arvLogger != nil { + arvLogger.Update(func(p map[string]interface{}, e map[string]interface{}) { + keepInfo := logger.GetOrCreateMap(p, "keep_info") + keepInfo["distinct_blocks_stored"] = len(readServers.BlockToServers) + }) } } + +// TrashRequest struct +type TrashRequest struct { + Locator string `json:"locator"` + BlockMtime int64 `json:"block_mtime"` +} + +// TrashList is an array of TrashRequest objects +type TrashList []TrashRequest + +// SendTrashLists to trash queue +func SendTrashLists(arvLogger *logger.Logger, kc *keepclient.KeepClient, spl map[string]TrashList, dryRun bool) (errs []error) { + count := 0 + barrier := make(chan error) + + client := kc.Client + + for url, v := range spl { + if arvLogger != nil { + // We need a local variable because Update doesn't call our mutator func until later, + // when our list variable might have been reused by the next loop iteration. + url := url + trashLen := len(v) + arvLogger.Update(func(p map[string]interface{}, e map[string]interface{}) { + trashListInfo := logger.GetOrCreateMap(p, "trash_list_len") + trashListInfo[url] = trashLen + }) + } + + if dryRun { + log.Printf("dry run, not sending trash list to service %s with %d blocks", url, len(v)) + continue + } + + count++ + log.Printf("Sending trash list to %v", url) + + go (func(url string, v TrashList) { + pipeReader, pipeWriter := io.Pipe() + go (func() { + enc := json.NewEncoder(pipeWriter) + enc.Encode(v) + pipeWriter.Close() + })() + + req, err := http.NewRequest("PUT", fmt.Sprintf("%s/trash", url), pipeReader) + if err != nil { + log.Printf("Error creating trash list request for %v error: %v", url, err.Error()) + barrier <- err + return + } + + req.Header.Add("Authorization", "OAuth2 "+kc.Arvados.ApiToken) + + // Make the request + var resp *http.Response + if resp, err = client.Do(req); err != nil { + log.Printf("Error sending trash list to %v error: %v", url, err.Error()) + barrier <- err + return + } + + log.Printf("Sent trash list to %v: response was HTTP %v", url, resp.Status) + + io.Copy(ioutil.Discard, resp.Body) + resp.Body.Close() + + if resp.StatusCode != 200 { + barrier <- errors.New(fmt.Sprintf("Got HTTP code %v", resp.StatusCode)) + } else { + barrier <- nil + } + })(url, v) + } + + for i := 0; i < count; i++ { + b := <-barrier + if b != nil { + errs = append(errs, b) + } + } + + return errs +}