Hello list, what are your experience with having more than one HBase-instance per machine?
One reason to do this could be that you got i.e. 32 GB RAM and want to give 12-14 GB of RAM to each HBase instance so that you got little issues with Garbage Collection while using the available RAM-capacity for caching. One thing I worry about is replication of data. Say two of three replicas reside at the same box in two distinct HBase instances. If this box fails for some reason, the risk of loosing data is relatively high compared to a scenario where all three replicas are stored at different nodes. Kind regards, Em
