message: debug logging in indexers
diff: @@ -56,13 +56,17 @@ class Indexers {
  this._queue.push({ hints, resolve, reject });
  }
  if (!this._running) {
  + this.log.debug("Starting new update loop");
  this._running = true;
  this._updateLoop().then(() => {
  + this.log.debug("Update loop finished");
  this._running = false;
  }, err => {
  this.log.error("Unexpected error in _updateLoop %s", err);
  this._running = false;
  });
  + } else {
  + this.log.debug("Joining update loop");
  }
  await promise;
  }
  @@ -104,10 +108,12 @@ class Indexers {
  }
  async _doUpdate(realTime, hints) {
  + this.log.debug('begin update, realTime=%s', realTime);
  let branches = await this._branches(hints);
  await Promise.all(Object.keys(branches).map(
  branchName => this._updateBranch(branchName, branches[branchName], realTime, hints)
  ));
  + this.log.debug('end update, realTime=%s', realTime);
  }
  async _updateBranch(branch, updaters, realTime, hints) {
  