@Xiaojie Ma One thing just popped up in my mind. Do you have snapshots that may be pointing to your data? In that case, data is not deleted by major compaction and moved to an archiving folder. See under /hbase if you have .archive folder. ... View more

@Junaid Rao No, this is not possible even when Windows was a supported platform. Now, HDP support for Windows has been deprecated. We strongly suggest using Linux platforms. ... View more

@Huahua Wei What is your use case? Type of data? Hive Acid performance will likely be slower than Hive on top of HBase specifically if you access data using HBase row key. Before I recommend Hive/ORC vs HBase, I'd like to understand your use case better. Here is what I say about HBase: When to use HBase: •Storing large amounts of data (TB/PB) •High throughput for a large number of requests •Storing unstructured or variable column data •Big Data with random read and writes •Well Suited for sparse rows where the number of column varies •Highly Available, Scalable (since it runs on HDFS) When NOT to use HBase: •Only use with Big Data problems •If you have data for only one or two nodes, HBase is likely not the tool you should be using to begin with. •Read straight through files •Write all at once or append new files •Not random reads or writes •Access patterns of the data are ill-defined ... View more