1.Does bulk loaded HFile not get replicated? Is it mean if a Regionserver gets down , all Hfiles which were bulk loaded to this server are lost irrespective of HDFS replication set to 3 ? if yes- Why bulk loaded HFiles are not replicated.
2.Is there any issue in timestamp prefix as key of table- and used bulk load for writing. 3.Does in bulk load MR job using HFileOutPutFormat2 as outputformat will create single HFile per region ? Or it can be multiple Hfiles per region? If multiple does loadIncrementalHFiles merges these Hfiles to 1 while loading to same region or just do simple copy? 4.Is there any performance issue if I run bulk load every 5 sec - containing ~20MB of data.Does it creates frequent compactions and that lead to performance issue?
