String logger = StringUtil.join(Arrays.asList(address.split(":")), "+");
log.debug("DfsLogger.open() begin");
VolumeManager fs = conf.getFileSystem();
logPath = fs.choose(ServerConstants.getWalDirs()) + "/" + logger + "/" + filename;
try {
short replication = (short) conf.getConfiguration().getCount(Property.TSERV_WAL_REPLICATION);
if (replication == 0)
replication = fs.getDefaultReplication(new Path(logPath));
long blockSize = conf.getConfiguration().getMemoryInBytes(Property.TSERV_WAL_BLOCKSIZE);