private List<FileStatus> getFileList(List<Path> logDirs, PathFilter filter) throws IOException {
    return getFileList(conf, logDirs, filter);
  }
Its OK to construct this object even when region-servers are not online. It does lookup the
orphan tasks in coordination engine but it doesn't block waiting for them to be done.
@param master the master services
@param conf   the HBase configuration
hbase-server/src/main/java/org/apache/hadoop/hbase/master/SplitLogManager.java