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Posted to dev@hbase.apache.org by "Duo Zhang (JIRA)" <ji...@apache.org> on 2016/11/08 02:25:58 UTC
[jira] [Created] (HBASE-17045) Unify the implementation of small
scan and regular scan
Duo Zhang created HBASE-17045:
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Summary: Unify the implementation of small scan and regular scan
Key: HBASE-17045
URL: https://issues.apache.org/jira/browse/HBASE-17045
Project: HBase
Issue Type: Sub-task
Components: Client, scan
Affects Versions: 2.0.0, 1.4.0
Reporter: Duo Zhang
See [~enis]'s comment in HBASE-16838
https://issues.apache.org/jira/browse/HBASE-16838?focusedCommentId=15637803&page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel#comment-15637803
But there is another scenario that we need small scan is that, we do not know the stop row but we only want a small set of results. For example, in the implementation of region locator, we will use small scan and set caching to 1 as we only need one row.
So I think we need to add a new option(maybe called limit?) for the scan object, and deprecate the small option. And the server side modification should also be committed to branch-1 to simplify the logic of async client in 2.0.
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