(-to dev, +bcc dev, +to user) Hi Stefano,
Moving your question over to the user@ mailing list as it's not so much about development of HBase, instead development when using HBase.
Q1: what do you mean by the "latest field"? Are you talking about the latest version of a Cell for a column (which is row + cf/cq)?
When you write a new cell without explicitly setting a timestamp, it will use the current time from that RegionServer which is effectively making it the "latest".
Q2: Not sure here :) On 4/10/18 9:33 AM, Stefano Manca wrote:
Dear, My name is Stefano, I am a young software developer. In these months I am using HBase as database in a Hadoop cluster, to write data from Apache Spark with scala language. May I ask you any question for specific information? *Q1*: there is a way to insert/update a specific cell as latest field into the same record? Example: ROW COLUMN+CELL row1 column=CF1:QUAL1, timestamp=1523350296746, value=0.0 row1 column=CF1:QUAL2, timestamp=1523350296746, value=test row1 column=CF1:QUAL3, timestamp=1523350296746, value=2700 row1 *column=CF2:QUAL4, timestamp=1523350296746, value=01218* row1 column=CF2:QUAL5, timestamp=1523350296746, value=example I would like to be sure that the value of the key QUAL4 will be insert as last field, respect to the other values of the same rowkey (row1). *Q2*: What is the best way to write in bulk with Spark 2.2? Is the HBaseContext class available to use the bulkload with Hfiles? Thank you very much in advance. Best regards, *__________________________________________________Stefano Manca* *Phone: +39 349216059* *E-mail: ste.manc...@gmail.com <ste.manc...@gmail.com>*