Merge branch 'master' into 3408-production-datamanager

[arvados.git] / services / datamanager / datamanager.go

diff --git a/services/datamanager/datamanager.go b/services/datamanager/datamanager.go
index d3efe621731c0e1a93cb4dc333fdd9537bad65c2..91612668b538b8a045277a72eabe18c5be09f733 100644 (file)
--- a/services/datamanager/datamanager.go
+++ b/services/datamanager/datamanager.go
@@ -4,7 +4,9 @@ package main
 
 import (
        "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"
@@ -77,30 +79,19 @@ func singlerun() {
        }
 
        var (
+               dataFetcher     summary.DataFetcher
                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
+       if summary.ShouldReadData() {
+               dataFetcher = summary.ReadData
+       } else {
+               dataFetcher = BuildDataFetcher(arv)
        }
 
+       dataFetcher(arvLogger, &readCollections, &keepServerInfo)
+
        summary.MaybeWriteData(arvLogger, readCollections, keepServerInfo)
 
        buckets := summary.BucketReplication(readCollections, keepServerInfo)
@@ -111,7 +102,7 @@ func singlerun() {
 
        log.Printf("Blocks In Collections: %d, "+
                "\nBlocks In Keep: %d.",
-               len(readCollections.BlockToReplication),
+               len(readCollections.BlockToDesiredReplication),
                len(keepServerInfo.BlockToServers))
        log.Println(replicationCounts.PrettyPrint())
 
@@ -122,6 +113,21 @@ func singlerun() {
                        rlbss.Count)
        }
 
+       kc, err := keepclient.MakeKeepClient(&arv)
+       if err != nil {
+               loggerutil.FatalWithMessage(arvLogger,
+                       fmt.Sprintf("Error setting up keep client %s", err.Error()))
+       }
+
+       pullServers := summary.ComputePullServers(kc,
+               &keepServerInfo,
+               readCollections.BlockToDesiredReplication,
+               replicationSummary.UnderReplicatedBlocks)
+
+       pullLists := summary.BuildPullLists(pullServers)
+
+       summary.WritePullLists(arvLogger, pullLists)
+
        // Log that we're finished. We force the recording, since go will
        // not wait for the write timer before exiting.
        if arvLogger != nil {
@@ -135,3 +141,28 @@ func singlerun() {
                })
        }
 }
+
+// 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) {
+               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
+       }
+}