Andrey Elenskiy created HBASE-21032:
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Summary: ScanResponse returns a partial result per cell
Key: HBASE-21032
URL: https://issues.apache.org/jira/browse/HBASE-21032
Project: HBase
Issue Type: Bug
Components: Scanners
Affects Versions: 2.1.0
Environment: HBase 2.1.0
Hadoop 2.8.4
Java 8
Reporter: Andrey Elenskiy
Attachments: App.java
I have a long row with a bunch of columns that I'm scanning with
setAllowPartialResults(true). In the response I'm getting the first partial
being around 2MB while all of the consequent ones being 1 column per partial.
After digging more, I found that each of those single column partials are
preceded by a heartbeat response (zero cells). This results in two request per
column to a regionserver.
I've attached code to reproduce it on hbase version 2.1.0 (it works as expected
on 2.0.0 and 2.0.1).
[^App.java]
I'm fairly certain it's a serverside issue as
[gohbase|https://github.com/tsuna/gohbase] client is having the same issue. I
have not tried to reproduce this with multi-row scan.
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