server: lift jobAdoptionStopFile declaration out of SQL server

It's declared using the Stores, which we don't want the SQL server to
have to think about.

Release note: None

pkg/server/server.go

@@ -520,6 +520,14 @@ func NewServer(cfg Config, stopper *stop.Stopper) (*Server, error) {
 		gw.RegisterService(grpcServer.Server)
 	}
 
+	var jobAdoptionStopFile string
+	for _, spec := range cfg.Stores.Specs {
+		if !spec.InMemory && spec.Path != "" {
+			jobAdoptionStopFile = filepath.Join(spec.Path, jobs.PreventAdoptionFile)
+			break
+		}
+	}
+
 	sqlServer, err := newSQLServer(ctx, sqlServerArgs{
 		sqlServerOptionalArgs: sqlServerOptionalArgs{
 			rpcContext:             rpcContext,
@@ -549,6 +557,7 @@ func NewServer(cfg Config, stopper *stop.Stopper) (*Server, error) {
 		sessionRegistry:          sessionRegistry,
 		circularInternalExecutor: internalExecutor,
 		jobRegistry:              jobRegistry,
+		jobAdoptionStopFile:      jobAdoptionStopFile,
 		protectedtsProvider:      protectedtsProvider,
 	})
 	if err != nil {

pkg/server/server_sql.go

@@ -164,7 +164,8 @@ type sqlServerArgs struct {
 	// The protected timestamps KV subsystem depends on this, so we pass a
 	// pointer to an empty struct in this configuration, which newSQLServer
 	// fills.
-	jobRegistry *jobs.Registry
+	jobRegistry         *jobs.Registry
+	jobAdoptionStopFile string
 
 	// The executorConfig uses the provider.
 	protectedtsProvider protectedts.Provider
@@ -174,14 +175,6 @@ func newSQLServer(ctx context.Context, cfg sqlServerArgs) (*sqlServer, error) {
 	execCfg := &sql.ExecutorConfig{}
 	codec := keys.MakeSQLCodec(cfg.tenantID)
 
-	var jobAdoptionStopFile string
-	for _, spec := range cfg.Stores.Specs {
-		if !spec.InMemory && spec.Path != "" {
-			jobAdoptionStopFile = filepath.Join(spec.Path, jobs.PreventAdoptionFile)
-			break
-		}
-	}
-
 	// Create blob service for inter-node file sharing.
 	blobService, err := blobs.NewBlobService(cfg.Settings.ExternalIODir)
 	if err != nil {
@@ -211,7 +204,7 @@ func newSQLServer(ctx context.Context, cfg sqlServerArgs) (*sqlServer, error) {
 				// in sql/jobs/registry.go on planHookMaker.
 				return sql.NewInternalPlanner(opName, nil, user, &sql.MemoryMetrics{}, execCfg)
 			},
-			jobAdoptionStopFile,
+			cfg.jobAdoptionStopFile,
 		)
 	}
 	cfg.registry.AddMetricStruct(jobRegistry.MetricsStruct())