move more database reads into the database worker

lib/historyKeeper.js

@@ -43,6 +43,7 @@ module.exports.create = function (config, cb) {
         batchRegisteredUsers: BatchRead("GET_REGISTERED_USERS"),
         batchDiskUsage: BatchRead('GET_DISK_USAGE'),
         batchUserPins: BatchRead('LOAD_USER_PINS'),
+        batchTotalSize: BatchRead('GET_TOTAL_SIZE'),
 
         //historyKeeper: config.historyKeeper,
         intervals: config.intervals || {},
@@ -243,6 +244,8 @@ module.exports.create = function (config, cb) {
         }));
     }).nThen(function (w) {
         HK.initializeIndexWorkers(Env, {
+            blobPath: config.blobPath,
+            blobStagingPath: config.blobStagingPath,
             pinPath: pinPath,
             filePath: config.filePath,
             archivePath: config.archivePath,