bk = new BookKeeper(bkConf, zk, clientChannelFactory);
} catch (KeeperException e) {
logger.error("Could not instantiate bookkeeper client", e);
throw new IOException(e);
}
underlyingPM = new BookkeeperPersistenceManager(bk, zk, topicMgr, conf, scheduler);
}
PersistenceManager pm = underlyingPM;