X-Git-Url: https://git.arvados.org/arvados.git/blobdiff_plain/970095751e2e836ed296152ae3e9ccb6caa62f62..5a662d84f00c0c2693c18d333bab9d0fdda7e28e:/services/datamanager/datamanager.go

diff --git a/services/datamanager/datamanager.go b/services/datamanager/datamanager.go
index bf989026c4..d3efe62173 100644
--- a/services/datamanager/datamanager.go
+++ b/services/datamanager/datamanager.go
@@ -9,31 +9,49 @@ import (
 	"git.curoverse.com/arvados.git/sdk/go/util"
 	"git.curoverse.com/arvados.git/services/datamanager/collection"
 	"git.curoverse.com/arvados.git/services/datamanager/keep"
+	"git.curoverse.com/arvados.git/services/datamanager/loggerutil"
+	"git.curoverse.com/arvados.git/services/datamanager/summary"
 	"log"
-	"os"
-	"runtime"
 	"time"
 )
 
 var (
-	logEventType string
+	logEventTypePrefix  string
 	logFrequencySeconds int
+	minutesBetweenRuns  int
 )
 
 func init() {
-	flag.StringVar(&logEventType, 
-		"log-event-type",
-		"experimental-data-manager-report",
-		"event_type to use in our arvados log entries. Set to empty to turn off logging")
-	flag.IntVar(&logFrequencySeconds, 
+	flag.StringVar(&logEventTypePrefix,
+		"log-event-type-prefix",
+		"experimental-data-manager",
+		"Prefix to use in the event_type of our arvados log entries. Set to empty to turn off logging")
+	flag.IntVar(&logFrequencySeconds,
 		"log-frequency-seconds",
 		20,
 		"How frequently we'll write log entries in seconds.")
+	flag.IntVar(&minutesBetweenRuns,
+		"minutes-between-runs",
+		0,
+		"How many minutes we wait betwen data manager runs. 0 means run once and exit.")
 }
 
 func main() {
 	flag.Parse()
+	if minutesBetweenRuns == 0 {
+		singlerun()
+	} else {
+		waitTime := time.Minute * time.Duration(minutesBetweenRuns)
+		for {
+			log.Println("Beginning Run")
+			singlerun()
+			log.Printf("Sleeping for %d minutes", minutesBetweenRuns)
+			time.Sleep(waitTime)
+		}
+	}
+}
 
+func singlerun() {
 	arv, err := arvadosclient.MakeArvadosClient()
 	if err != nil {
 		log.Fatalf("Error setting up arvados client %s", err.Error())
@@ -46,84 +64,74 @@ func main() {
 	}
 
 	var arvLogger *logger.Logger
-	if logEventType != "" {
-		arvLogger = logger.NewLogger(logger.LoggerParams{Client: arv,
-			EventType: logEventType,
-			MinimumWriteInterval: time.Second * time.Duration(logFrequencySeconds)})
+	if logEventTypePrefix != "" {
+		arvLogger = logger.NewLogger(logger.LoggerParams{
+			Client:          arv,
+			EventTypePrefix: logEventTypePrefix,
+			WriteInterval:   time.Second * time.Duration(logFrequencySeconds)})
 	}
 
+	loggerutil.LogRunInfo(arvLogger)
 	if arvLogger != nil {
-		properties, _ := arvLogger.Edit()
-		runInfo := make(map[string]interface{})
-		runInfo["start_time"] = time.Now()
-		runInfo["args"] = os.Args
-		hostname, err := os.Hostname()
-		if err != nil {
-			runInfo["hostname_error"] = err.Error()
-		} else {
-			runInfo["hostname"] = hostname
-		}
-		runInfo["pid"] = os.Getpid()
-		properties["run_info"] = runInfo
-
-		arvLogger.AddEditHook(LogMemoryAlloc)
-
-		arvLogger.Record()
+		arvLogger.AddWriteHook(loggerutil.LogMemoryAlloc)
 	}
 
-	// TODO(misha): Read Collections and Keep Contents concurrently as goroutines.
-	// This requires waiting on them to finish before you let main() exit.
-
-	RunCollections(collection.GetCollectionsParams{
-		Client: arv, Logger: arvLogger, BatchSize: 100})
-
-	RunKeep(keep.GetKeepServersParams{Client: arv, Limit: 1000})
-}
-
-func RunCollections(params collection.GetCollectionsParams) {
-	readCollections := collection.GetCollections(params)
+	var (
+		readCollections collection.ReadCollections
+		keepServerInfo  keep.ReadServers
+	)
+
+	if !summary.MaybeReadData(arvLogger, &readCollections, &keepServerInfo) {
+		collectionChannel := make(chan collection.ReadCollections)
+
+		go func() {
+			collectionChannel <- collection.GetCollectionsAndSummarize(
+				collection.GetCollectionsParams{
+					Client:    arv,
+					Logger:    arvLogger,
+					BatchSize: 50})
+		}()
+
+		keepServerInfo = keep.GetKeepServersAndSummarize(
+			keep.GetKeepServersParams{
+				Client: arv,
+				Logger: arvLogger,
+				Limit:  1000})
+
+		readCollections = <-collectionChannel
+	}
 
-	UserUsage := ComputeSizeOfOwnedCollections(readCollections)
-	log.Printf("Uuid to Size used: %v", UserUsage)
+	summary.MaybeWriteData(arvLogger, readCollections, keepServerInfo)
 
-	// TODO(misha): Add a "readonly" flag. If we're in readonly mode,
-	// lots of behaviors can become warnings (and obviously we can't
-	// write anything).
-	// if !readCollections.ReadAllCollections {
-	// 	log.Fatalf("Did not read all collections")
-	// }
+	buckets := summary.BucketReplication(readCollections, keepServerInfo)
+	bucketCounts := buckets.Counts()
 
-	log.Printf("Read and processed %d collections",
-		len(readCollections.UuidToCollection))
-}
+	replicationSummary := buckets.SummarizeBuckets(readCollections)
+	replicationCounts := replicationSummary.ComputeCounts()
 
-func RunKeep(params keep.GetKeepServersParams) {
-	readServers := keep.GetKeepServers(params)
+	log.Printf("Blocks In Collections: %d, "+
+		"\nBlocks In Keep: %d.",
+		len(readCollections.BlockToReplication),
+		len(keepServerInfo.BlockToServers))
+	log.Println(replicationCounts.PrettyPrint())
 
-	log.Printf("Returned %d keep disks", len(readServers.ServerToContents))
-
-	blockReplicationCounts := make(map[int]int)
-	for _, infos := range readServers.BlockToServers {
-		replication := len(infos)
-		blockReplicationCounts[replication] += 1
+	log.Printf("Blocks Histogram:")
+	for _, rlbss := range bucketCounts {
+		log.Printf("%+v: %10d",
+			rlbss.Levels,
+			rlbss.Count)
 	}
 
-	log.Printf("Replication level distribution: %v", blockReplicationCounts)
-}
-
-func ComputeSizeOfOwnedCollections(readCollections collection.ReadCollections) (
-	results map[string]int) {
-	results = make(map[string]int)
-	for _, coll := range readCollections.UuidToCollection {
-		results[coll.OwnerUuid] = results[coll.OwnerUuid] + coll.TotalSize
+	// Log that we're finished. We force the recording, since go will
+	// not wait for the write timer before exiting.
+	if arvLogger != nil {
+		arvLogger.FinalUpdate(func(p map[string]interface{}, e map[string]interface{}) {
+			summaryInfo := logger.GetOrCreateMap(p, "summary_info")
+			summaryInfo["block_replication_counts"] = bucketCounts
+			summaryInfo["replication_summary"] = replicationCounts
+			p["summary_info"] = summaryInfo
+
+			p["run_info"].(map[string]interface{})["finished_at"] = time.Now()
+		})
 	}
-	return
-}
-
-func LogMemoryAlloc(properties map[string]interface{}, entry map[string]interface{}) {
-	_ = entry  // keep the compiler from complaining
-	runInfo := properties["run_info"].(map[string]interface{})
-	var memStats runtime.MemStats
-	runtime.ReadMemStats(&memStats)
-	runInfo["alloc_bytes_in_use"] = memStats.Alloc
 }