public Writer createRecoveredEditsWriter(final FileSystem fs, final Path path)
    throws IOException {
    return FSHLogProvider.createWriter(conf, fs, path, true);
  }
Should be package-private, visible for recovery testing. Uses defaults.
@return an overwritable writer for recovered edits. caller should close.
hbase-server/src/main/java/org/apache/hadoop/hbase/wal/WALFactory.java