Consider having two collections `products1` and `products2` and alias `products`->`products1`. For seamless collection updates, we usually update `products2` libraries, reindex the contents and then simply switch the alias to `products`->`products2`. Then, the next time we do the same with `products1`.
The HBASE_INDEXER_CLASSPATH parameter in hbase-indexer does not help here because custom libraries that we use for producs1 and 2 hold the same classes but with changed contents.
It would be great if one could add extra libraries to a specific hbase-indexer, e.g. via indexer attribute `libs`: