package main
import (
- //"git.curoverse.com/arvados.git/sdk/go/keepclient"
+ "errors"
+ "flag"
"fmt"
"git.curoverse.com/arvados.git/sdk/go/arvadosclient"
+ "git.curoverse.com/arvados.git/sdk/go/keepclient"
+ "git.curoverse.com/arvados.git/sdk/go/logger"
+ "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"
+ "time"
)
-// Helper type so we don't have to write out 'map[string]interface{}' every time.
-type Dict map[string]interface{}
+var (
+ logEventTypePrefix string
+ logFrequencySeconds int
+ minutesBetweenRuns int
+ dryRun bool
+)
-func UserIsAdmin(arv arvadosclient.ArvadosClient) (is_admin bool, err error) {
- type user struct {
- IsAdmin bool `json:"is_admin"`
- }
- var u user
- err = arv.Call("GET", "users", "", "current", nil, &u)
- return u.IsAdmin, err
+func init() {
+ 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 between data manager runs. 0 means run once and exit.")
+ flag.BoolVar(&dryRun,
+ "dry-run",
+ false,
+ "Perform a dry run. Log how many blocks would be deleted/moved, but do not issue any changes to keepstore.")
}
func main() {
- fmt.Println("Hello, world\n")
+ flag.Parse()
+
+ if minutesBetweenRuns == 0 {
+ arv, err := arvadosclient.MakeArvadosClient()
+ if err != nil {
+ loggerutil.FatalWithMessage(arvLogger, fmt.Sprintf("Error making arvados client: %v", err))
+ }
+ err = singlerun(arv)
+ if err != nil {
+ loggerutil.FatalWithMessage(arvLogger, fmt.Sprintf("singlerun: %v", err))
+ }
+ } else {
+ waitTime := time.Minute * time.Duration(minutesBetweenRuns)
+ for {
+ log.Println("Beginning Run")
+ arv, err := arvadosclient.MakeArvadosClient()
+ if err != nil {
+ loggerutil.FatalWithMessage(arvLogger, fmt.Sprintf("Error making arvados client: %v", err))
+ }
+ err = singlerun(arv)
+ if err != nil {
+ log.Printf("singlerun: %v", err)
+ }
+ log.Printf("Sleeping for %d minutes", minutesBetweenRuns)
+ time.Sleep(waitTime)
+ }
+ }
+}
+
+var arvLogger *logger.Logger
+
+func singlerun(arv arvadosclient.ArvadosClient) error {
+ var err error
+ if isAdmin, err := util.UserIsAdmin(arv); err != nil {
+ return errors.New("Error verifying admin token: " + err.Error())
+ } else if !isAdmin {
+ return errors.New("Current user is not an admin. Datamanager requires a privileged token.")
+ }
+
+ if logEventTypePrefix != "" {
+ arvLogger, err = logger.NewLogger(logger.LoggerParams{
+ Client: arv,
+ EventTypePrefix: logEventTypePrefix,
+ WriteInterval: time.Second * time.Duration(logFrequencySeconds)})
+ }
+
+ loggerutil.LogRunInfo(arvLogger)
+ if arvLogger != nil {
+ arvLogger.AddWriteHook(loggerutil.LogMemoryAlloc)
+ }
+
+ var (
+ dataFetcher summary.DataFetcher
+ readCollections collection.ReadCollections
+ keepServerInfo keep.ReadServers
+ )
+
+ if summary.ShouldReadData() {
+ dataFetcher = summary.ReadData
+ } else {
+ dataFetcher = BuildDataFetcher(arv)
+ }
+
+ err = dataFetcher(arvLogger, &readCollections, &keepServerInfo)
+ if err != nil {
+ return err
+ }
+
+ err = summary.MaybeWriteData(arvLogger, readCollections, keepServerInfo)
+ if err != nil {
+ return err
+ }
+
+ buckets := summary.BucketReplication(readCollections, keepServerInfo)
+ bucketCounts := buckets.Counts()
+
+ replicationSummary := buckets.SummarizeBuckets(readCollections)
+ replicationCounts := replicationSummary.ComputeCounts()
+
+ log.Printf("Blocks In Collections: %d, "+
+ "\nBlocks In Keep: %d.",
+ len(readCollections.BlockToDesiredReplication),
+ len(keepServerInfo.BlockToServers))
+ log.Println(replicationCounts.PrettyPrint())
+
+ log.Printf("Blocks Histogram:")
+ for _, rlbss := range bucketCounts {
+ log.Printf("%+v: %10d",
+ rlbss.Levels,
+ rlbss.Count)
+ }
+
+ kc, err := keepclient.MakeKeepClient(&arv)
+ if err != nil {
+ return fmt.Errorf("Error setting up keep client %v", err.Error())
+ }
+
+ // Log that we're finished. We force the recording, since go will
+ // not wait for the write timer before exiting.
+ if arvLogger != nil {
+ defer 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
- arv, err := arvadosclient.MakeArvadosClient()
+ p["run_info"].(map[string]interface{})["finished_at"] = time.Now()
+ })
+ }
+
+ pullServers := summary.ComputePullServers(kc,
+ &keepServerInfo,
+ readCollections.BlockToDesiredReplication,
+ replicationSummary.UnderReplicatedBlocks)
+
+ pullLists := summary.BuildPullLists(pullServers)
+
+ trashLists, trashErr := summary.BuildTrashLists(kc,
+ &keepServerInfo,
+ replicationSummary.KeepBlocksNotInCollections)
+
+ err = summary.WritePullLists(arvLogger, pullLists, dryRun)
if err != nil {
- log.Fatalf("Error setting up arvados client %s", err.Error())
+ return err
}
- if is_admin, err := UserIsAdmin(arv); err != nil {
- log.Fatalf("Error querying current arvados user %s", err.Error())
- } else if !is_admin {
- log.Fatalf("Current user is not an admin. Datamanager can only be run by admins.")
+ if trashErr != nil {
+ return err
}
+ keep.SendTrashLists(arvLogger, kc, trashLists, dryRun)
- readCollections := collection.GetCollections(arv)
+ return nil
+}
+
+// BuildDataFetcher returns a data fetcher that fetches data from remote servers.
+func BuildDataFetcher(arv arvadosclient.ArvadosClient) summary.DataFetcher {
+ return func(
+ arvLogger *logger.Logger,
+ readCollections *collection.ReadCollections,
+ keepServerInfo *keep.ReadServers,
+ ) error {
+ collDone := make(chan struct{})
+ var collErr error
+ go func() {
+ *readCollections, collErr = collection.GetCollectionsAndSummarize(
+ collection.GetCollectionsParams{
+ Client: arv,
+ Logger: arvLogger,
+ BatchSize: 50})
+ collDone <- struct{}{}
+ }()
+
+ var keepErr error
+ *keepServerInfo, keepErr = keep.GetKeepServersAndSummarize(
+ keep.GetKeepServersParams{
+ Client: arv,
+ Logger: arvLogger,
+ Limit: 1000})
- log.Printf("Read Collections: %v", readCollections)
+ <- collDone
+
+ // Return a nil error only if both parts succeeded.
+ if collErr != nil {
+ return collErr
+ }
+ return keepErr
+ }
}
projects / arvados.git / blobdiff