private void startSyncer(Journal journal, String jid, String nameServiceId) { JournalNodeSyncer jSyncer = journalSyncersById.get(jid); if (jSyncer == null) { jSyncer = new JournalNodeSyncer(this, journal, jid, conf, nameServiceId); journalSyncersById.put(jid, jSyncer); } jSyncer.start(nameServiceId); }