protected void initMetaManager() {
logger.info("init metaManager begin...");
MetaMode mode = parameters.getMetaMode();
if (mode.isMemory()) {
metaManager = new MemoryMetaManager();
} else if (mode.isZookeeper()) {
metaManager = new ZooKeeperMetaManager();
((ZooKeeperMetaManager) metaManager).setZkClientx(getZkclientx());
} else if (mode.isMixed()) {
// metaManager = new MixedMetaManager();