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paginationhbasemapr

Reverse pagination with HBase

I am working on hbase table pagination. functionality i need to implement is, UI pagination table should have next/forward and back/backward feature.

Forward option i implemented using PageFilter but for backward, i need to get the rows(20) from end key to most recent and going backward. eg. backward get all records 1000 - 980.

I couldn't find anything in hbase source that would suffice my requirement. any idea how we can implement it???

PS: my row key is a composite key of multiple fields and data size in TB.

Solution

  • In hbase .98, there is a new option for reverse scan with a so simple code 

    scan.setReversed(true);