(env, readBufferSize, DbLsn.NULL_LSN, fileNum);
DbTree dbMapTree = env.getDbMapTree();
TreeLocation location = new TreeLocation();
while (reader.readNextEntry()) {
nEntriesRead += 1;
long lsn = reader.getLastLsn();
long fileOffset = DbLsn.getFileOffset(lsn);
boolean isObsolete = false;